|
JavaTM 2 Platform Standard Ed. 5.0 |
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java.lang.Object java.lang.Thread
public class Thread
A thread is a thread of execution in a program. The Java Virtual Machine allows an application to have multiple threads of execution running concurrently.
Every thread has a priority. Threads with higher priority are
executed in preference to threads with lower priority. Each thread
may or may not also be marked as a daemon. When code running in
some thread creates a new Thread
object, the new
thread has its priority initially set equal to the priority of the
creating thread, and is a daemon thread if and only if the
creating thread is a daemon.
When a Java Virtual Machine starts up, there is usually a single
non-daemon thread (which typically calls the method named
main
of some designated class). The Java Virtual
Machine continues to execute threads until either of the following
occurs:
exit
method of class Runtime
has been
called and the security manager has permitted the exit operation
to take place.
run
method or by
throwing an exception that propagates beyond the run
method.
There are two ways to create a new thread of execution. One is to
declare a class to be a subclass of Thread
. This
subclass should override the run
method of class
Thread
. An instance of the subclass can then be
allocated and started. For example, a thread that computes primes
larger than a stated value could be written as follows:
class PrimeThread extends Thread { long minPrime; PrimeThread(long minPrime) { this.minPrime = minPrime; } public void run() { // compute primes larger than minPrime . . . } }
The following code would then create a thread and start it running:
PrimeThread p = new PrimeThread(143); p.start();
The other way to create a thread is to declare a class that
implements the Runnable
interface. That class then
implements the run
method. An instance of the class can
then be allocated, passed as an argument when creating
Thread
, and started. The same example in this other
style looks like the following:
class PrimeRun implements Runnable { long minPrime; PrimeRun(long minPrime) { this.minPrime = minPrime; } public void run() { // compute primes larger than minPrime . . . } }
The following code would then create a thread and start it running:
PrimeRun p = new PrimeRun(143); new Thread(p).start();
Every thread has a name for identification purposes. More than one thread may have the same name. If a name is not specified when a thread is created, a new name is generated for it.
Runnable
,
Runtime.exit(int)
,
run()
,
stop()
| Nested Class Summary | |
|---|---|
static class |
Thread.State
A thread state. |
static interface |
Thread.UncaughtExceptionHandler
Interface for handlers invoked when a Thread abruptly terminates due to an uncaught exception. |
| Field Summary | |
|---|---|
static int |
MAX_PRIORITY
The maximum priority that a thread can have. |
static int |
MIN_PRIORITY
The minimum priority that a thread can have. |
static int |
NORM_PRIORITY
The default priority that is assigned to a thread. |
| Constructor Summary | |
|---|---|
Thread()
Allocates a new Thread object. |
|
Thread(Runnable target)
Allocates a new Thread object. |
|
Thread(Runnable target,
String name)
Allocates a new Thread object. |
|
Thread(String name)
Allocates a new Thread object. |
|
Thread(ThreadGroup group,
Runnable target)
Allocates a new Thread object. |
|
Thread(ThreadGroup group,
Runnable target,
String name)
Allocates a new Thread object so that it has
target as its run object, has the specified
name as its name, and belongs to the thread group
referred to by group . |
|
Thread(ThreadGroup group,
Runnable target,
String name,
long stackSize)
Allocates a new Thread object so that it has
target as its run object, has the specified
name as its name, belongs to the thread group referred to
by group , and has the specified stack size. |
|
Thread(ThreadGroup group,
String name)
Allocates a new Thread object. |
| Method Summary | |
|---|---|
static int |
activeCount()
Returns the number of active threads in the current thread's thread group. |
void |
checkAccess()
Determines if the currently running thread has permission to modify this thread. |
int |
countStackFrames()
Deprecated. The definition of this call depends on suspend() ,
which is deprecated. Further, the results of this call
were never well-defined. |
static Thread |
currentThread()
Returns a reference to the currently executing thread object. |
void |
destroy()
Deprecated. This method was originally designed to destroy this thread without any cleanup. Any monitors it held would have remained locked. However, the method was never implemented. If if were to be implemented, it would be deadlock-prone in much the manner of suspend() . If the target thread held
a lock protecting a critical system resource when it was
destroyed, no thread could ever access this resource again.
If another thread ever attempted to lock this resource, deadlock
would result. Such deadlocks typically manifest themselves as
"frozen" processes. For more information, see
Why are Thread.stop, Thread.suspend and Thread.resume Deprecated?. |
static void |
dumpStack()
Prints a stack trace of the current thread. |
static int |
enumerate(Thread[] tarray)
Copies into the specified array every active thread in the current thread's thread group and its subgroups. |
static Map<Thread,StackTraceElement[]> |
getAllStackTraces()
Returns a map of stack traces for all live threads. |
ClassLoader |
getContextClassLoader()
Returns the context ClassLoader for this Thread. |
static Thread.UncaughtExceptionHandler |
getDefaultUncaughtExceptionHandler()
Returns the default handler invoked when a thread abruptly terminates due to an uncaught exception. |
long |
getId()
Returns the identifier of this Thread. |
String |
getName()
Returns this thread's name. |
int |
getPriority()
Returns this thread's priority. |
StackTraceElement[] |
getStackTrace()
Returns an array of stack trace elements representing the stack dump of this thread. |
Thread.State |
getState()
Returns the state of this thread. |
ThreadGroup |
getThreadGroup()
Returns the thread group to which this thread belongs. |
Thread.UncaughtExceptionHandler |
getUncaughtExceptionHandler()
Returns the handler invoked when this thread abruptly terminates due to an uncaught exception. |
static boolean |
holdsLock(Object obj)
Returns true if and only if the current thread holds the monitor lock on the specified object. |
void |
interrupt()
Interrupts this thread. |
static boolean |
interrupted()
Tests whether the current thread has been interrupted. |
boolean |
isAlive()
Tests if this thread is alive. |
boolean |
isDaemon()
Tests if this thread is a daemon thread. |
boolean |
isInterrupted()
Tests whether this thread has been interrupted. |
void |
join()
Waits for this thread to die. |
void |
join(long millis)
Waits at most millis milliseconds for this thread to
die. |
void |
join(long millis,
int nanos)
Waits at most millis milliseconds plus
nanos nanoseconds for this thread to die. |
void |
resume()
Deprecated. This method exists solely for use with suspend() ,
which has been deprecated because it is deadlock-prone.
For more information, see
Why
are Thread.stop, Thread.suspend and Thread.resume Deprecated?. |
void |
run()
If this thread was constructed using a separate Runnable run object, then that
Runnable object's run method is called;
otherwise, this method does nothing and returns. |
void |
setContextClassLoader(ClassLoader cl)
Sets the context ClassLoader for this Thread. |
void |
setDaemon(boolean on)
Marks this thread as either a daemon thread or a user thread. |
static void |
setDefaultUncaughtExceptionHandler(Thread.UncaughtExceptionHandler eh)
Set the default handler invoked when a thread abruptly terminates due to an uncaught exception, and no other handler has been defined for that thread. |
void |
setName(String name)
Changes the name of this thread to be equal to the argument name . |
void |
setPriority(int newPriority)
Changes the priority of this thread. |
void |
setUncaughtExceptionHandler(Thread.UncaughtExceptionHandler eh)
Set the handler invoked when this thread abruptly terminates due to an uncaught exception. |
static void |
sleep(long millis)
Causes the currently executing thread to sleep (temporarily cease execution) for the specified number of milliseconds. |
static void |
sleep(long millis,
int nanos)
Causes the currently executing thread to sleep (cease execution) for the specified number of milliseconds plus the specified number of nanoseconds. |
void |
start()
Causes this thread to begin execution; the Java Virtual Machine calls the run method of this thread. |
void |
stop()
Deprecated. This method is inherently unsafe. Stopping a thread with Thread.stop causes it to unlock all of the monitors that it has locked (as a natural consequence of the unchecked ThreadDeath exception propagating up the stack). If
any of the objects previously protected by these monitors were in
an inconsistent state, the damaged objects become visible to
other threads, potentially resulting in arbitrary behavior. Many
uses of stop should be replaced by code that simply
modifies some variable to indicate that the target thread should
stop running. The target thread should check this variable
regularly, and return from its run method in an orderly fashion
if the variable indicates that it is to stop running. If the
target thread waits for long periods (on a condition variable,
for example), the interrupt method should be used to
interrupt the wait.
For more information, see
Why
are Thread.stop, Thread.suspend and Thread.resume Deprecated?. |
void |
stop(Throwable obj)
Deprecated. This method is inherently unsafe. See stop()
for details. An additional danger of this
method is that it may be used to generate exceptions that the
target thread is unprepared to handle (including checked
exceptions that the thread could not possibly throw, were it
not for this method).
For more information, see
Why
are Thread.stop, Thread.suspend and Thread.resume Deprecated?. |
void |
suspend()
Deprecated. This method has been deprecated, as it is inherently deadlock-prone. If the target thread holds a lock on the monitor protecting a critical system resource when it is suspended, no thread can access this resource until the target thread is resumed. If the thread that would resume the target thread attempts to lock this monitor prior to calling resume , deadlock results. Such
deadlocks typically manifest themselves as "frozen" processes.
For more information, see
Why
are Thread.stop, Thread.suspend and Thread.resume Deprecated?. |
String |
toString()
Returns a string representation of this thread, including the thread's name, priority, and thread group. |
static void |
yield()
Causes the currently executing thread object to temporarily pause and allow other threads to execute. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Field Detail |
|---|
public static final int MIN_PRIORITY
public static final int NORM_PRIORITY
public static final int MAX_PRIORITY
| Constructor Detail |
|---|
public Thread()
Thread
object. This constructor has
the same effect as Thread(null, null,
gname)
, where gname is
a newly generated name. Automatically generated names are of the
form "Thread-"+
n, where n is an integer.
Thread(java.lang.ThreadGroup,
java.lang.Runnable, java.lang.String)
public Thread(Runnable target)
Thread
object. This constructor has
the same effect as Thread(null, target,
gname)
, where gname is
a newly generated name. Automatically generated names are of the
form "Thread-"+
n, where n is an integer.
target
- the object whose run
method is called.Thread(java.lang.ThreadGroup,
java.lang.Runnable, java.lang.String)
public Thread(ThreadGroup group, Runnable target)
Thread
object. This constructor has
the same effect as Thread(group, target,
gname)
, where gname is
a newly generated name. Automatically generated names are of the
form "Thread-"+
n, where n is an integer.
group
- the thread group.target
- the object whose run
method is called.
SecurityException
- if the current thread cannot create a
thread in the specified thread group.Thread(java.lang.ThreadGroup,
java.lang.Runnable, java.lang.String)
public Thread(String name)
Thread
object. This constructor has
the same effect as Thread(null, null, name)
.
name
- the name of the new thread.Thread(java.lang.ThreadGroup,
java.lang.Runnable, java.lang.String)
public Thread(ThreadGroup group, String name)
Thread
object. This constructor has
the same effect as Thread(group, null, name)
group
- the thread group.name
- the name of the new thread.
SecurityException
- if the current thread cannot create a
thread in the specified thread group.Thread(java.lang.ThreadGroup,
java.lang.Runnable, java.lang.String)
public Thread(Runnable target, String name)
Thread
object. This constructor has
the same effect as Thread(null, target, name)
.
target
- the object whose run
method is called.name
- the name of the new thread.Thread(java.lang.ThreadGroup,
java.lang.Runnable, java.lang.String)
public Thread(ThreadGroup group, Runnable target, String name)
Thread
object so that it has
target
as its run object, has the specified
name
as its name, and belongs to the thread group
referred to by group
.
If group
is null
and there is a
security manager, the group is determined by the security manager's
getThreadGroup
method. If group
is
null
and there is not a security manager, or the
security manager's getThreadGroup
method returns
null
, the group is set to be the same ThreadGroup
as the thread that is creating the new thread.
If there is a security manager, its checkAccess
method is called with the ThreadGroup as its argument.
In addition, its checkPermission
method is called with the
RuntimePermission("enableContextClassLoaderOverride")
permission when invoked directly or indirectly by the constructor
of a subclass which overrides the getContextClassLoader
or setContextClassLoader
methods.
This may result in a SecurityException.
If the target
argument is not null
, the
run
method of the target
is called when
this thread is started. If the target argument is
null
, this thread's run
method is called
when this thread is started.
The priority of the newly created thread is set equal to the
priority of the thread creating it, that is, the currently running
thread. The method setPriority
may be used to
change the priority to a new value.
The newly created thread is initially marked as being a daemon
thread if and only if the thread creating it is currently marked
as a daemon thread. The method setDaemon
may be used
to change whether or not a thread is a daemon.
group
- the thread group.target
- the object whose run
method is called.name
- the name of the new thread.
SecurityException
- if the current thread cannot create a
thread in the specified thread group or cannot
override the context class loader methods.Runnable.run()
,
run()
,
setDaemon(boolean)
,
setPriority(int)
,
ThreadGroup.checkAccess()
,
SecurityManager.checkAccess(java.lang.Thread)
public Thread(ThreadGroup group, Runnable target, String name, long stackSize)
Thread
object so that it has
target
as its run object, has the specified
name
as its name, belongs to the thread group referred to
by group
, and has the specified stack size.
This constructor is identical to Thread(ThreadGroup,Runnable,String)
with the exception of the fact
that it allows the thread stack size to be specified. The stack size
is the approximate number of bytes of address space that the virtual
machine is to allocate for this thread's stack. The effect of the
stackSize parameter, if any, is highly platform dependent.
On some platforms, specifying a higher value for the
stackSize parameter may allow a thread to achieve greater
recursion depth before throwing a StackOverflowError
.
Similarly, specifying a lower value may allow a greater number of
threads to exist concurrently without throwing an OutOfMemoryError
(or other internal error). The details of
the relationship between the value of the stackSize parameter
and the maximum recursion depth and concurrency level are
platform-dependent. On some platforms, the value of the
stackSize parameter may have no effect whatsoever.
The virtual machine is free to treat the stackSize parameter as a suggestion. If the specified value is unreasonably low for the platform, the virtual machine may instead use some platform-specific minimum value; if the specified value is unreasonably high, the virtual machine may instead use some platform-specific maximum. Likewise, the virtual machine is free to round the specified value up or down as it sees fit (or to ignore it completely).
Specifying a value of zero for the stackSize parameter will cause this constructor to behave exactly like the Thread(ThreadGroup, Runnable, String) constructor.
Due to the platform-dependent nature of the behavior of this constructor, extreme care should be exercised in its use. The thread stack size necessary to perform a given computation will likely vary from one JRE implementation to another. In light of this variation, careful tuning of the stack size parameter may be required, and the tuning may need to be repeated for each JRE implementation on which an application is to run.
Implementation note: Java platform implementers are encouraged to document their implementation's behavior with respect to the stackSize parameter.
group
- the thread group.target
- the object whose run
method is called.name
- the name of the new thread.stackSize
- the desired stack size for the new thread, or
zero to indicate that this parameter is to be ignored.
SecurityException
- if the current thread cannot create a
thread in the specified thread group.| Method Detail |
|---|
public static Thread currentThread()
public static void yield()
public static void sleep(long millis) throws InterruptedException
millis
- the length of time to sleep in milliseconds.
InterruptedException
- if another thread has interrupted
the current thread. The interrupted status of the
current thread is cleared when this exception is thrown.Object.notify()
public static void sleep(long millis, int nanos) throws InterruptedException
millis
- the length of time to sleep in milliseconds.nanos
- 0-999999 additional nanoseconds to sleep.
IllegalArgumentException
- if the value of millis is
negative or the value of nanos is not in the range
0-999999.
InterruptedException
- if another thread has interrupted
the current thread. The interrupted status of the
current thread is cleared when this exception is thrown.Object.notify()
public void start()
run
method of this thread.
The result is that two threads are running concurrently: the
current thread (which returns from the call to the
start
method) and the other thread (which executes its
run
method).
It is never legal to start a thread more than once. In particular, a thread may not be restarted once it has completed execution.
IllegalThreadStateException
- if the thread was already
started.run()
,
stop()
public void run()
Runnable
run object, then that
Runnable
object's run
method is called;
otherwise, this method does nothing and returns.
Subclasses of Thread
should override this method.
run
in interface Runnable
start()
,
stop()
,
Thread(java.lang.ThreadGroup,
java.lang.Runnable, java.lang.String)
,
Runnable.run()
@Deprecated public final void stop()
ThreadDeath
exception propagating up the stack). If
any of the objects previously protected by these monitors were in
an inconsistent state, the damaged objects become visible to
other threads, potentially resulting in arbitrary behavior. Many
uses of stop
should be replaced by code that simply
modifies some variable to indicate that the target thread should
stop running. The target thread should check this variable
regularly, and return from its run method in an orderly fashion
if the variable indicates that it is to stop running. If the
target thread waits for long periods (on a condition variable,
for example), the interrupt
method should be used to
interrupt the wait.
For more information, see
Why
are Thread.stop, Thread.suspend and Thread.resume Deprecated?.
If there is a security manager installed, its checkAccess
method is called with this
as its argument. This may result in a
SecurityException
being raised (in the current thread).
If this thread is different from the current thread (that is, the current
thread is trying to stop a thread other than itself), the
security manager's checkPermission
method (with a
RuntimePermission("stopThread")
argument) is called in
addition.
Again, this may result in throwing a
SecurityException
(in the current thread).
The thread represented by this thread is forced to stop whatever
it is doing abnormally and to throw a newly created
ThreadDeath
object as an exception.
It is permitted to stop a thread that has not yet been started. If the thread is eventually started, it immediately terminates.
An application should not normally try to catch
ThreadDeath
unless it must do some extraordinary
cleanup operation (note that the throwing of
ThreadDeath
causes finally
clauses of
try
statements to be executed before the thread
officially dies). If a catch
clause catches a
ThreadDeath
object, it is important to rethrow the
object so that the thread actually dies.
The top-level error handler that reacts to otherwise uncaught
exceptions does not print out a message or otherwise notify the
application if the uncaught exception is an instance of
ThreadDeath
.
SecurityException
- if the current thread cannot
modify this thread.interrupt()
,
checkAccess()
,
run()
,
start()
,
ThreadDeath
,
ThreadGroup.uncaughtException(java.lang.Thread,
java.lang.Throwable)
,
SecurityManager.checkAccess(Thread)
,
SecurityManager.checkPermission(java.security.Permission)
@Deprecated public final void stop(Throwable obj)
stop()
for details. An additional danger of this
method is that it may be used to generate exceptions that the
target thread is unprepared to handle (including checked
exceptions that the thread could not possibly throw, were it
not for this method).
For more information, see
Why
are Thread.stop, Thread.suspend and Thread.resume Deprecated?.
If there is a security manager installed, the checkAccess
method of this thread is called, which may result in a
SecurityException
being raised (in the current thread).
If this thread is different from the current thread (that is, the current
thread is trying to stop a thread other than itself) or
obj
is not an instance of ThreadDeath
, the
security manager's checkPermission
method (with the
RuntimePermission("stopThread")
argument) is called in
addition.
Again, this may result in throwing a
SecurityException
(in the current thread).
If the argument obj
is null, a
NullPointerException
is thrown (in the current thread).
The thread represented by this thread is forced to complete
whatever it is doing abnormally and to throw the
Throwable
object obj
as an exception. This
is an unusual action to take; normally, the stop
method
that takes no arguments should be used.
It is permitted to stop a thread that has not yet been started. If the thread is eventually started, it immediately terminates.
obj
- the Throwable object to be thrown.
SecurityException
- if the current thread cannot modify
this thread.interrupt()
,
checkAccess()
,
run()
,
start()
,
stop()
,
SecurityManager.checkAccess(Thread)
,
SecurityManager.checkPermission(java.security.Permission)
public void interrupt()
Unless the current thread is interrupting itself, which is
always permitted, the checkAccess
method
of this thread is invoked, which may cause a SecurityException
to be thrown.
If this thread is blocked in an invocation of the wait()
, wait(long)
, or wait(long, int)
methods of the Object
class, or of the join()
, join(long)
, join(long, int)
, sleep(long)
, or sleep(long, int)
,
methods of this class, then its interrupt status will be cleared and it
will receive an InterruptedException
.
If this thread is blocked in an I/O operation upon an interruptible
channel
then the channel will be closed, the thread's interrupt
status will be set, and the thread will receive a
ClosedByInterruptException
.
If this thread is blocked in a Selector
then the thread's interrupt status will be set and it will return
immediately from the selection operation, possibly with a non-zero
value, just as if the selector's wakeup
method were invoked.
If none of the previous conditions hold then this thread's interrupt status will be set.
SecurityException
- if the current thread cannot modify this threadpublic static boolean interrupted()
true
if the current thread has been interrupted;
false
otherwise.isInterrupted()
public boolean isInterrupted()
true
if this thread has been interrupted;
false
otherwise.interrupted()
@Deprecated public void destroy()
suspend()
. If the target thread held
a lock protecting a critical system resource when it was
destroyed, no thread could ever access this resource again.
If another thread ever attempted to lock this resource, deadlock
would result. Such deadlocks typically manifest themselves as
"frozen" processes. For more information, see
Why are Thread.stop, Thread.suspend and Thread.resume Deprecated?.
NoSuchMethodError
.
NoSuchMethodError
- alwayspublic final boolean isAlive()
true
if this thread is alive;
false
otherwise.@Deprecated public final void suspend()
resume
, deadlock results. Such
deadlocks typically manifest themselves as "frozen" processes.
For more information, see
Why
are Thread.stop, Thread.suspend and Thread.resume Deprecated?.
First, the checkAccess
method of this thread is called
with no arguments. This may result in throwing a
SecurityException
(in the current thread).
If the thread is alive, it is suspended and makes no further progress unless and until it is resumed.
SecurityException
- if the current thread cannot modify
this thread.checkAccess()
@Deprecated public final void resume()
suspend()
,
which has been deprecated because it is deadlock-prone.
For more information, see
Why
are Thread.stop, Thread.suspend and Thread.resume Deprecated?.
First, the checkAccess
method of this thread is called
with no arguments. This may result in throwing a
SecurityException
(in the current thread).
If the thread is alive but suspended, it is resumed and is permitted to make progress in its execution.
SecurityException
- if the current thread cannot modify this
thread.checkAccess()
,
suspend()
public final void setPriority(int newPriority)
First the checkAccess
method of this thread is called
with no arguments. This may result in throwing a
SecurityException
.
Otherwise, the priority of this thread is set to the smaller of
the specified newPriority
and the maximum permitted
priority of the thread's thread group.
newPriority
- priority to set this thread to
IllegalArgumentException
- If the priority is not in the
range MIN_PRIORITY
to
MAX_PRIORITY
.
SecurityException
- if the current thread cannot modify
this thread.getPriority()
,
checkAccess()
,
getPriority()
,
getThreadGroup()
,
MAX_PRIORITY
,
MIN_PRIORITY
,
ThreadGroup.getMaxPriority()
public final int getPriority()
setPriority(int)
,
setPriority(int)
public final void setName(String name)
name
.
First the checkAccess
method of this thread is called
with no arguments. This may result in throwing a
SecurityException
.
name
- the new name for this thread.
SecurityException
- if the current thread cannot modify this
thread.getName()
,
checkAccess()
,
getName()
public final String getName()
setName(java.lang.String)
,
setName(java.lang.String)
public final ThreadGroup getThreadGroup()
public static int activeCount()
public static int enumerate(Thread[] tarray)
enumerate
method of the current thread's thread
group with the array argument.
First, if there is a security manager, that enumerate
method calls the security
manager's checkAccess
method
with the thread group as its argument. This may result
in throwing a SecurityException
.
tarray
- an array of Thread objects to copy to
SecurityException
- if a security manager exists and its
checkAccess
method doesn't allow the operation.ThreadGroup.enumerate(java.lang.Thread[])
,
SecurityManager.checkAccess(java.lang.ThreadGroup)
@Deprecated public int countStackFrames()
suspend()
,
which is deprecated. Further, the results of this call
were never well-defined.
IllegalThreadStateException
- if this thread is not
suspended.public final void join(long millis) throws InterruptedException
millis
milliseconds for this thread to
die. A timeout of 0
means to wait forever.
millis
- the time to wait in milliseconds.
InterruptedException
- if another thread has interrupted
the current thread. The interrupted status of the
current thread is cleared when this exception is thrown.public final void join(long millis, int nanos) throws InterruptedException
millis
milliseconds plus
nanos
nanoseconds for this thread to die.
millis
- the time to wait in milliseconds.nanos
- 0-999999 additional nanoseconds to wait.
IllegalArgumentException
- if the value of millis is negative
the value of nanos is not in the range 0-999999.
InterruptedException
- if another thread has interrupted
the current thread. The interrupted status of the
current thread is cleared when this exception is thrown.public final void join() throws InterruptedException
InterruptedException
- if another thread has interrupted
the current thread. The interrupted status of the
current thread is cleared when this exception is thrown.public static void dumpStack()
Throwable.printStackTrace()
public final void setDaemon(boolean on)
This method must be called before the thread is started.
This method first calls the checkAccess
method
of this thread
with no arguments. This may result in throwing a
SecurityException
(in the current thread).
on
- if true
, marks this thread as a
daemon thread.
IllegalThreadStateException
- if this thread is active.
SecurityException
- if the current thread cannot modify
this thread.isDaemon()
,
checkAccess()
public final boolean isDaemon()
true
if this thread is a daemon thread;
false
otherwise.setDaemon(boolean)
public final void checkAccess()
If there is a security manager, its checkAccess
method
is called with this thread as its argument. This may result in
throwing a SecurityException
.
Note: This method was mistakenly non-final in JDK 1.1. It has been made final in the Java 2 Platform.
SecurityException
- if the current thread is not allowed to
access this thread.SecurityManager.checkAccess(java.lang.Thread)
public String toString()
toString
in class Object
public ClassLoader getContextClassLoader()
First, if there is a security manager, and the caller's class
loader is not null and the caller's class loader is not the same as or
an ancestor of the context class loader for the thread whose
context class loader is being requested, then the security manager's
checkPermission
method is called with a
RuntimePermission("getClassLoader")
permission
to see if it's ok to get the context ClassLoader..
SecurityException
- if a security manager exists and its
checkPermission
method doesn't allow
getting the context ClassLoader.setContextClassLoader(java.lang.ClassLoader)
,
SecurityManager.checkPermission(java.security.Permission)
,
RuntimePermission
public void setContextClassLoader(ClassLoader cl)
First, if there is a security manager, its checkPermission
method is called with a
RuntimePermission("setContextClassLoader")
permission
to see if it's ok to set the context ClassLoader..
cl
- the context ClassLoader for this Thread
SecurityException
- if the current thread cannot set the
context ClassLoader.getContextClassLoader()
,
SecurityManager.checkPermission(java.security.Permission)
,
RuntimePermission
public static boolean holdsLock(Object obj)
This method is designed to allow a program to assert that the current thread already holds a specified lock:
assert Thread.holdsLock(obj);
obj
- the object on which to test lock ownership
NullPointerException
- if obj is nullpublic StackTraceElement[] getStackTrace()
If there is a security manager, and this thread is not the current thread, then the security manager's checkPermission method is called with a RuntimePermission("getStackTrace") permission to see if it's ok to get the stack trace.
Some virtual machines may, under some circumstances, omit one or more stack frames from the stack trace. In the extreme case, a virtual machine that has no stack trace information concerning this thread is permitted to return a zero-length array from this method.
SecurityException
- if a security manager exists and its
checkPermission method doesn't allow
getting the stack trace of thread.SecurityManager.checkPermission(java.security.Permission)
,
RuntimePermission
,
Throwable.getStackTrace()
public static Map<Thread,StackTraceElement[]> getAllStackTraces()
getStackTrace
method.
The threads may be executing while this method is called. The stack trace of each thread only represents a snapshot and each stack trace may be obtained at different time. A zero-length array will be returned in the map value if the virtual machine has no stack trace information about a thread.
If there is a security manager, then the security manager's checkPermission method is called with a RuntimePermission("getStackTrace") permission as well as RuntimePermission("modifyThreadGroup") permission to see if it is ok to get the stack trace of all threads.
SecurityException
- if a security manager exists and its
checkPermission method doesn't allow
getting the stack trace of thread.getStackTrace()
,
SecurityManager.checkPermission(java.security.Permission)
,
RuntimePermission
,
Throwable.getStackTrace()
public long getId()
public Thread.State getState()
public static void setDefaultUncaughtExceptionHandler(Thread.UncaughtExceptionHandler eh)
Uncaught exception handling is controlled first by the thread, then
by the thread's ThreadGroup
object and finally by the default
uncaught exception handler. If the thread does not have an explicit
uncaught exception handler set, and the thread's thread group
(including parent thread groups) does not specialize its
uncaughtException method, then the default handler's
uncaughtException method will be invoked.
By setting the default uncaught exception handler, an application can change the way in which uncaught exceptions are handled (such as logging to a specific device, or file) for those threads that would already accept whatever "default" behavior the system provided.
Note that the default uncaught exception handler should not usually defer to the thread's ThreadGroup object, as that could cause infinite recursion.
eh
- the object to use as the default uncaught exception handler.
If null then there is no default handler.
SecurityException
- if a security manager is present and it
denies RuntimePermission
("setDefaultUncaughtExceptionHandler")setUncaughtExceptionHandler(java.lang.Thread.UncaughtExceptionHandler)
,
getUncaughtExceptionHandler()
,
ThreadGroup.uncaughtException(java.lang.Thread, java.lang.Throwable)
public static Thread.UncaughtExceptionHandler getDefaultUncaughtExceptionHandler()
setDefaultUncaughtExceptionHandler(java.lang.Thread.UncaughtExceptionHandler)
public Thread.UncaughtExceptionHandler getUncaughtExceptionHandler()
public void setUncaughtExceptionHandler(Thread.UncaughtExceptionHandler eh)
A thread can take full control of how it responds to uncaught exceptions by having its uncaught exception handler explicitly set. If no such handler is set then the thread's ThreadGroup object acts as its handler.
eh
- the object to use as this thread's uncaught exception
handler. If null then this thread has no explicit handler.
SecurityException
- if the current thread is not allowed to
modify this thread.setDefaultUncaughtExceptionHandler(java.lang.Thread.UncaughtExceptionHandler)
,
ThreadGroup.uncaughtException(java.lang.Thread, java.lang.Throwable)
|
JavaTM 2 Platform Standard Ed. 5.0 |
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Copyright © 2004, 2010 Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.


Welcome to my website, let me tell you a little about my self : ))
-
About
My name is "Magedah Al-Shuriqi", I am 23 years old
Fresh graduation with BA degree in Chemical Engineering.
Trainer in ASAC in Softwaring field “Html,
Java, and CSS”.
Patient, creative and have Perfect leadership skills, quick learner, high attention
to details
-
Education
- Code Fellows | Jordan, Amman
Tech training in Software Development 401 course | June, 2021
- Al-Balqa’a Applied university | Jordan, Al-Zarqaa
BA degree in Chemical Engineering | July, 2020
- Um al Heran school | Jordan, Amman
12th grade, Graduated with rate of 87.2% | September 2015
-
Experience
- Kewy Company | Amman | November 2020 – December 2020
• Brand manager for Qata’a application.
- Al-Bayt al ateq school | Amman | 14.sep.2020- 17.sep.2020
• Mathematical teacher
- “I am a chemical engineer” Website | Amman | May 2020 – July 2020
• Auditor for Arabic scientific articles.
- Tamkeen for work | Amman | 20 July 2018 – 20 December 2020
• Project manager for academic courses.
- Al-Manassah | Amman | 24 June 2020 – 30 October 2020
• Calligrapher.
-
These are the top ten courcse that I would like to learn:
- Learn how to learn
- Yousofy with tamkeen
- Digital markiting
- Photoshop
- Illestrator
- creating animation video
- sewing
- Embroidery
- English calligraphey
- Photography


Today being the forty-first anniversary of the assassination of Potus John Fitzgerald Kennedy, it is appropriate to pose some of the questions about that day in Dallas which remain unanswered. Perhaps they are unanswerable.
Did the citizens of Dallas refer to the grassy knoll as “the grassy knoll” before it became known as The Grassy Knoll, or did they call it “a grassy knoll” or “that grassy knoll”, or even “that patch of grass over there in Dealey Plaza”? Similarly, was the white picket fence known as “that white picket fence” or just “that fence”?
Did his family, friends and acquaintances address Umbrella Man as “umbrella man” prior to 22nd November 1963? The same question can be asked of Badge Man, and indeed of Marymoon Man, or, as some commentators on the assassination have it, Mary Moonman, or Moorman.
We know that future Potus Richard Milhous Nixon flew out of Dallas, suspiciously, on the morning of the assassination. Was he accompanied by his dog Checkers, or had Checkers already passed to The Other Side by then?
Elderly dressmaker Abraham Zapruder famously shot the Zapruder Footage on that sunny November day in Dallas. Who decided to dub it “The Zapruder Footage” as opposed to, say, “The Zapruder Film” or “Zapruder's cinefilm”?
The cinema in which Lee Harvey Oswald was apprehended was showing the film War Is Hell starring Van Heflin at the time. Was Mr Heflin part of the conspiracy, if indeed there was a conspiracy?
A question with wider implications relates to the practice of assassin nomenclature. When was it decided, and by whom, that the assassins of Potuses (or Potae) should invariably be given their full three names, as in Lee Harvey Oswald and John Wilkes Booth? Why is this also accorded to the assassins of whining Liverpudlian pop singers (Mark David Chapman) but not to unsuccessful Potus assassins (John Hinckley) unless they are members of the Manson cult (Lynette “Squeaky” Fromme)? And is Sirhan Sirhan's middle name also Sirhan?


Bases: object
Contains the whole constraint with corresponding reactions.
Evaluates this constraint and sets the attributes according to the result of the evaluation.
| Parameters: | storage (RatedStatisticStorage) – The storage where the incoming statistics are saved. |
|---|
True if the current state of the constraint says that an execution of the reactions is necessary.
Tells this constraint that its reactions have just been executed.
# Note: its important to notify this constraint so it knows how long the last execution was ago and does not execute too often.
An list of reactions that should be executed if the constraint has been true longer than min_reaction_interval milliseconds. :type: list of Reactions
Time since when this constraint is true. # Note if true_since is 0 it has not been true. :type: rospy.Time
Bases: arni_countermeasure.constraint_item.ConstraintItem
An constraints consisting of other constraints logically and colligated.
Evaluate if all of the constraints inside are true.
| Parameters: | storage (RatedStatisticStorage) – The storage where the incoming statistics are saved. |
|---|---|
| Returns: | True if all constraints are true. |
Bases: object
Manages all constraints, checks if they are true and executes appropriate reactions if neccessary.
Add an constraint to the list of constraints.
| Parameters: | constraint (Constraint) – The constraint to add. |
|---|
Evaluate every constraint.
Check if there are any new reactions to do and execute them.
Set the statistic storage to use. Should only be needed on initialisation.
| Parameters: | rated_statistic_storage – The statistic storage to use. |
|---|---|
| Type: | RatedStatisticStorage |
Bases: object
Abstract description of a Constraint. Can be a logical operation on constraints or an actual constraint.
Evaluates if this constraint, given the available RatedStatisticStorage. Returns wheter the constraint is true or not.
Bases: arni_countermeasure.constraint_item.ConstraintItem
Contains an actual statistic datapoint and the seuid the datapoint belongs to.
Evaluate if this constraint is true or not.
| Parameters: | storage (RatedStatisticStorage) – The storage where the incoming statistics are saved. |
|---|---|
| Returns: | Return if the wanted outcome is the same as the outcome in the storage. Note: having OUT_OF_BOUNDS as constraint and getting HIGH or LOW also evaluates to true. |
Bases: arni_countermeasure.constraint_item.ConstraintItem
An constraints consisting of another constraint negated.
Evaluate if the constraint inside this constraint is false or not.
| Parameters: | storage (RatedStatisticStorage) – The storage where the incoming statistics are saved. |
|---|---|
| Returns: | True iff the constraint inside is False. |
Bases: arni_countermeasure.constraint_item.ConstraintItem
An constraints consisting of other constraints logically or colligated.
Evaluate if at least one of the constraints inside is true.
| Parameters: | storage (RatedStatisticStorage) – The storage where the incoming statistics are saved. |
|---|---|
| Returns: | True if one of the constraints is true. |
Bases: object
A ROS node. Evaluates incoming rated statistics with a list of constraints. If those constraints turn out to be true appropriate action is taken.
the parameter namespace for configuration files of the arni_countermeasure node
the parameter namespace for the arni_countermeasure node
Calls rospy.get_param and logs errors.
Logs if the param does not exist or is not parsable to rospy.Durotation. And calls rospy.signal_shutdown if the value is invalid/not existing.
| Returns: | The Param param from the parameter server. |
|---|---|
| Return type: | rospy.Duration |
Bases: object
An enumeration of all states an rated statistic can have.
Returns the int value for an textual representation of the outcome.
Returns UNKNOWN if the textual representation is no valid outcome.
Check if a outcome (numeric representation) is valid.
| Parameters: | out (int) – The outcome in numeric format. |
|---|---|
| Returns: | whether out is a valid outcome or not. |
| Return type: | boolean |
Bases: object
A database which contains the current state of all rated statistics.
Callback for incoming rated statistics. Add them to the dictionary or remove items from the dictionary if the rated statistic says that its within bounds again.
| Parameters: | msg (RatedStatistics) – The rated statistic to be added to the storage. |
|---|
Check the complete dictionary for statistics older than timeout seconds and remove them.
Return the outcome of the specific seuid and statistic_type.
| Parameters: |
|
|---|---|
| Returns: | The outcome the type currently has. Returns Outcome.UNKNOWN if there is no saved outcome. |
| Return type: | Outcome (int) |
| Raises AttributeError: | |
If the outcome in the storage is not a valid outcome. Should not occur because there is a validation check upon entering the outcome into the storage. |
Bases: arni_countermeasure.reaction.Reaction
A reaction that is able to publish a message on rosout.
Log the reaction message at a specific loglevel.
Bases: arni_countermeasure.reaction.Reaction
A reaction that is able to restart a node.
Bases: arni_countermeasure.reaction.Reaction
A Reaction which executes a command on the remote machine the specified node runs on.
Bases: arni_countermeasure.reaction.Reaction
A reaction that is able to stop a node.


-
Meet the Team
Anne Gingras
MechanicalXiang (Vivian) Li
MechanicalTyurina Nimalakumar
SoftwareMartin Wong
ElectricalHi we’re Group 14! We are fourth-year Mechatronics Engineering students from the University of Waterloo (class of 2019). We're excited to end off our degree by completing this capstone project using the skills we've developed in the classroom and across our varying co-op experiences.


A class representing a 4x4
[link:https://en.wikipedia.org/wiki/Matrix_(mathematics) matrix].
The most common use of a 4x4 matrix in 3D computer graphics is as a
[link:https://en.wikipedia.org/wiki/Transformation_matrix Transformation Matrix].
For an introduction to transformation matrices as used in WebGL,
check out
[link:http://www.opengl-tutorial.org/beginners-tutorials/tutorial-3-matrices this tutorial].
This allows a [page:Vector3] representing a point in 3D space to undergo
transformations such as translation, rotation, shear, scale, reflection,
orthogonal or perspective projection and so on, by being multiplied by the
matrix. This is known as `applying` the matrix to the vector.
Every [page:Object3D] has three associated Matrix4s:
The constructor and [page:set]() method take arguments in
[link:https://en.wikipedia.org/wiki/Row-_and_column-major_order#Column-major_order row-major]
order, while internally they are stored in the [page:.elements elements] array in column-major order.
This means that calling
const m = new THREE.Matrix4();
m.set( 11, 12, 13, 14,
21, 22, 23, 24,
31, 32, 33, 34,
41, 42, 43, 44 );
will result in the [page:.elements elements] array containing:
m.elements = [ 11, 21, 31, 41,
12, 22, 32, 42,
13, 23, 33, 43,
14, 24, 34, 44 ];
and internally all calculations are performed using column-major ordering.
However, as the actual ordering makes no difference mathematically and
most people are used to thinking about matrices in row-major order, the
three.js documentation shows matrices in row-major order. Just bear in
mind that if you are reading the source code, you'll have to take the
[link:https://en.wikipedia.org/wiki/Transpose transpose] of any matrices
outlined here to make sense of the calculations.
There are several options available for extracting position, rotation and scale from a Matrix4.
Creates a 4x4 matrix with the given arguments in row-major order. If no arguments are provided, the constructor initializes the [name] to the 4x4 [link:https://en.wikipedia.org/wiki/Identity_matrix identity matrix].
A [link:https://en.wikipedia.org/wiki/Row-_and_column-major_order#Column-major_order column-major] list of matrix values.
Creates a new Matrix4 with identical [page:.elements elements] to this one.
Sets this matrix to the transformation composed of [page:Vector3 position], [page:Quaternion quaternion] and [page:Vector3 scale].
Copies the [page:.elements elements] of matrix [page:Matrix4 m] into this matrix.
Copies the translation component of the supplied matrix [page:Matrix4 m] into this matrix's translation component.
Decomposes this matrix into its [page:Vector3 position], [page:Quaternion quaternion]
and [page:Vector3 scale] components.
Note: Not all matrices are decomposable in this way. For example, if an
object has a non-uniformly scaled parent, then the object's world matrix
may not be decomposable, and this method may not be appropriate.
Computes and returns the [link:https://en.wikipedia.org/wiki/Determinant determinant] of this matrix.
Based on the method outlined
[link:http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.html here].
Return true if this matrix and [page:Matrix4 m] are equal.
Extracts the [link:https://en.wikipedia.org/wiki/Basis_(linear_algebra) basis]
of this matrix into the three axis vectors provided. If this matrix
is:
a, b, c, d,
e, f, g, h,
i, j, k, l,
m, n, o, p
then the [page:Vector3 xAxis], [page:Vector3 yAxis], [page:Vector3 zAxis]
will be set to:
xAxis = (a, e, i)
yAxis = (b, f, j)
zAxis = (c, g, k)
Extracts the rotation component of the supplied matrix [page:Matrix4 m] into this matrix's rotation component.
[page:Array array] - the array to read the elements from.
[page:Integer offset] - ( optional ) offset into the array. Default is
0.
Sets the elements of this matrix based on an [page:Array array] in
[link:https://en.wikipedia.org/wiki/Row-_and_column-major_order#Column-major_order column-major] format.
Inverts this matrix, using the [link:https://en.wikipedia.org/wiki/Invertible_matrix#Analytic_solution analytic method]. You can not invert with a determinant of zero. If you attempt this, the method produces a zero matrix instead.
Gets the maximum scale value of the 3 axes.
Resets this matrix to the [link:https://en.wikipedia.org/wiki/Identity_matrix identity matrix].
Constructs a rotation matrix, looking from [page:Vector3 eye] towards [page:Vector3 target] oriented by the [page:Vector3 up] vector.
[page:Vector3 axis] — Rotation axis, should be normalized.
[page:Float theta] — Rotation angle in radians.
Sets this matrix as rotation transform around [page:Vector3 axis] by
[page:Float theta] radians.
This is a somewhat controversial but mathematically sound alternative to
rotating via [page:Quaternion Quaternions]. See the discussion
[link:https://www.gamedev.net/articles/programming/math-and-physics/do-we-really-need-quaternions-r1199 here].
Set this to the [link:https://en.wikipedia.org/wiki/Basis_(linear_algebra) basis]
matrix consisting of the three provided basis vectors:
xAxis.x, yAxis.x, zAxis.x, 0,
xAxis.y, yAxis.y, zAxis.y, 0,
xAxis.z, yAxis.z, zAxis.z, 0,
0, 0, 0, 1
Creates a [link:https://en.wikipedia.org/wiki/3D_projection#Perspective_projection perspective projection] matrix. This is used internally by [page:PerspectiveCamera.updateProjectionMatrix]()
Creates an [link:https://en.wikipedia.org/wiki/Orthographic_projection orthographic projection] matrix. This is used internally by [page:OrthographicCamera.updateProjectionMatrix]().
Sets the rotation component (the upper left 3x3 matrix) of this matrix to the rotation specified by the given [page:Euler Euler Angle]. The rest of the matrix is set to the identity. Depending on the [page:Euler.order order] of the [page:Euler euler], there are six possible outcomes. See [link:https://en.wikipedia.org/wiki/Euler_angles#Rotation_matrix this page] for a complete list.
Sets the rotation component of this matrix to the rotation specified by
[page:Quaternion q], as outlined
[link:https://en.wikipedia.org/wiki/Rotation_matrix#Quaternion here]. The
rest of the matrix is set to the identity. So, given [page:Quaternion q] =
w + xi + yj + zk, the resulting matrix will be:
1-2y²-2z² 2xy-2zw 2xz+2yw 0
2xy+2zw 1-2x²-2z² 2yz-2xw 0
2xz-2yw 2yz+2xw 1-2x²-2y² 0
0 0 0 1
[page:Float theta] — Rotation angle in radians.
Sets this matrix as a rotational transformation around the X axis by
[page:Float theta] (θ) radians. The resulting matrix will be:
1 0 0 0
0 cos(θ) -sin(θ) 0
0 sin(θ) cos(θ) 0
0 0 0 1
[page:Float theta] — Rotation angle in radians.
Sets this matrix as a rotational transformation around the Y axis by
[page:Float theta] (θ) radians. The resulting matrix will be:
cos(θ) 0 sin(θ) 0 0 1 0 0 -sin(θ) 0 cos(θ) 0 0 0
0 1
[page:Float theta] — Rotation angle in radians.
Sets this matrix as a rotational transformation around the Z axis by
[page:Float theta] (θ) radians. The resulting matrix will be:
cos(θ) -sin(θ) 0 0
sin(θ) cos(θ) 0 0
0 0 1 0
0 0 0 1
[page:Float x] - the amount to scale in the X axis.
[page:Float y] - the amount to scale in the Y axis.
[page:Float z] - the amount to scale in the Z axis.
Sets this matrix as scale transform:
x, 0, 0, 0,
0, y, 0, 0,
0, 0, z, 0,
0, 0, 0, 1
[page:Float xy] - the amount to shear X by Y.
[page:Float xz] - the amount to shear X by Z.
[page:Float yx] - the amount to shear Y by X.
[page:Float yz] - the amount to shear Y by Z.
[page:Float zx] - the amount to shear Z by X.
[page:Float zy] - the amount to shear Z by Y.
Sets this matrix as a shear transform:
1, yx, zx, 0,
xy, 1, zy, 0,
xz, yz, 1, 0,
0, 0, 0, 1
Sets this matrix as a translation transform from vector [page:Vector3 v], or numbers [page:Float x], [page:Float y] and [page:Float z]:
1, 0, 0, x,
0, 1, 0, y,
0, 0, 1, z,
0, 0, 0, 1
Post-multiplies this matrix by [page:Matrix4 m].
Sets this matrix to [page:Matrix4 a] x [page:Matrix4 b].
Multiplies every component of the matrix by a scalar value [page:Float s].
Pre-multiplies this matrix by [page:Matrix4 m].
Multiplies the columns of this matrix by vector [page:Vector3 v].
Set the [page:.elements elements] of this matrix to the supplied row-major values [page:Float n11], [page:Float n12], ... [page:Float n44].
Set the upper 3x3 elements of this matrix to the values of the Matrix3 [page:Matrix3 m].
Sets the position component for this matrix from vector [page:Vector3 v],
without affecting the rest of the matrix - i.e. if the matrix is
currently:
a, b, c, d,
e, f, g, h,
i, j, k, l,
m, n, o, p
This becomes:
a, b, c, v.x,
e, f, g, v.y,
i, j, k, v.z,
m, n, o, p
[page:Array array] - (optional) array to store the resulting vector in.
[page:Integer offset] - (optional) offset in the array at which to put the
result.
Writes the elements of this matrix to an array in
[link:https://en.wikipedia.org/wiki/Row-_and_column-major_order#Column-major_order column-major] format.
[link:https://en.wikipedia.org/wiki/Transpose Transposes] this matrix.
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]


A RDD that cogroups its parents.
Represents a coalesced RDD that has fewer partitions than its parent RDD This class uses the PartitionCoalescer class to find a good partitioning of the parent RDD so that each new partition has roughly the same number of parent partitions and that the preferred location of each new partition overlaps with as many preferred locations of its parent partitions
Class that captures a coalesced RDD by essentially keeping track of parent partitions
Extra functions available on RDDs of Doubles through an implicit conversion.
An RDD that is empty, i.
An RDD that reads a Hadoop dataset as specified by a JobConf (e.
An RDD that executes an SQL query on a JDBC connection and reads results.
Extra functions available on RDDs of (key, value) pairs where the key is sortable through an implicit conversion.
Extra functions available on RDDs of (key, value) pairs through an implicit conversion.
A RDD used to prune RDD partitions/partitions so we can avoid launching tasks on all partitions.
An RDD that pipes the contents of each parent partition through an external command (printing them one per line) and returns the output as a collection of strings.
Represents a dependency between the PartitionPruningRDD and its parent.
A Resilient Distributed Dataset (RDD), the basic abstraction in Spark.
Extra functions available on RDDs of (key, value) pairs to create a Hadoop SequenceFile, through an implicit conversion.
The resulting RDD from a shuffle (e.


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Preparation time
over 2 hours
Cooking time
no cooking required
Serves
Serves 4
Giorgio Locatelli suggests a hearty take on this classic dish of marinated sardines, bulked out with homemade pasta.
For the sauce, heat the oil, bay leaf, rosemary, juniper berries, peppercorns and garlic in a deep, heavy-based, non-reactive saucepan over a very gentle heat. As the oil heats, increase the heat a little to allow the flavours to infuse the oil.
When the herbs start to sizzle, add the onion and season, to taste, with salt and freshly ground black pepper. Cook very gently without frying fiercely or letting the onions brown, for 15-20 minutes, or until the onion slices have softened and are covered by the oil.
Meanwhile, season the sardine fillets with salt and freshly ground black pepper. Sprinkle the flour onto a plate and dredge each sardine fillet in the flour until they are all coated on both sides.
Heat the vegetable oil in a deep-sided, heavy-based pan until a breadcrumb sizzles and turns golden-brown when dropped into it. (CAUTION: hot oil can be dangerous. Do not leave unattended.) Alternatively, heat the oil in a deep-fat fryer.
Gently lower the sardines into the hot oil in batches and fry for one minute. The sardines shouldn’t colour or cook through. Remove from the pan using a slotted spoon and set aside to drain on kitchen paper. Repeat the process with the remaining batches of sardines.
Increase the heat of the pan containing the onions and gradually add the vinegar to the pan in a thin stream. Remove the pan from the heat. Drain the sultanas then stir them into the onion mixture.
Spoon half of the warm onion mixture in a thin layer at the bottom of a deep ovenproof dish. Arrange the half-cooked sardines in a single layer on top, then cover with the remaining onion mixture. Cover the dish with cling film and set aside to cool and marinate. This should take 2-3 hours (the marinade will cook the fish). If marinating the sardines overnight, put them in the fridge and remove half an hour to bring them back to room temperature before continuing.
Meanwhile, for the pasta, take the chilled pasta dough and cut into pieces if necessary (to make it more manageable). Flatten each piece of pasta, then roll to a thickness of about 0.5cm/¼in using a rolling pin.
Pass one piece of pasta dough through a pasta machine set to its widest setting. Fold each edge of the rolled pasta dough over the middle section of the dough (so that it ends up one-third of its original width and three times its original height) and re-roll through the same setting.
Repeat this process without changing the setting of the pasta machine until the pasta is shiny and rectangular in shape. Then repeat the process with the remaining piece(s) of pasta dough.
Decrease the roller setting of the pasta machine by one grade and pass the piece(s) of pasta dough through the rollers once more. Each time you pass the pasta through the rollers, decrease the setting by one grade until you reach the penultimate or final setting and the pasta dough is smooth and supple.
Using a sharp knife, cut away any ragged edges from the pasta sheets, to create several sheets that are 20cm/8in in length.
If your pasta machine has a tagliatelle cutter, feed the pasta sheets through the machine one at a time, draping the strands of tagliatelle over a pasta drier or similar until needed. Repeat the process using the remaining pasta strips. Alternatively, cut the tagliatelle by hand using a sharp knife.
When the sardines have marinated, boil a large pan of salted water in preparation for the pasta.
Remove the garlic, herbs, peppercorns and berries from the marinade mixture.
Using a slotted spoon, transfer the sardine-and-onion mixture to a large, heavy-based pan. Heat over a low heat to warm the mixture through, stirring regularly and gently breaking the sardines into pieces as you do so.
Boil the tagliatelle in the salted, boiling water for 2-3 minutes, or until al dente. Drain, reserving a little of the cooking water.
Stir the tagliatelle into the sardine-and-onion mixture, stirring to coat the pasta in the sauce. Add a little of the reserved cooking water to the mixture if necessary, to loosen the sauce.
Serve immediately.


This app is made to easily test Evolutility-UI-jQuery. It provides an object which uses all possible field types.


|
Open3D (C++ API)
|
#include <ScalableTSDFVolume.h>
Data Structures | |
| struct | VolumeUnit |
Public Member Functions | |
| ScalableTSDFVolume (double voxel_length, double sdf_trunc, TSDFVolumeColorType color_type, int volume_unit_resolution=16, int depth_sampling_stride=4) | |
| ~ScalableTSDFVolume () override | |
| void | Reset () override |
| Function to reset the TSDFVolume. More... | |
| void | Integrate (const geometry::RGBDImage &image, const camera::PinholeCameraIntrinsic &intrinsic, const Eigen::Matrix4d &extrinsic) override |
| Function to integrate an RGB-D image into the volume. More... | |
| std::shared_ptr< geometry::PointCloud > | ExtractPointCloud () override |
| Function to extract a point cloud with normals. More... | |
| std::shared_ptr< geometry::TriangleMesh > | ExtractTriangleMesh () override |
| std::shared_ptr< geometry::PointCloud > | ExtractVoxelPointCloud () |
| Public Member Functions inherited from open3d::integration::TSDFVolume | |
| TSDFVolume (double voxel_length, double sdf_trunc, TSDFVolumeColorType color_type) | |
| virtual | ~TSDFVolume () |
Data Fields | |
| int | volume_unit_resolution_ |
| double | volume_unit_length_ |
| int | depth_sampling_stride_ |
| std::unordered_map< Eigen::Vector3i, VolumeUnit, utility::hash_eigen::hash< Eigen::Vector3i > > | volume_units_ |
| Data Fields inherited from open3d::integration::TSDFVolume | |
| double | voxel_length_ |
| double | sdf_trunc_ |
| TSDFVolumeColorType | color_type_ |
Class that implements a more memory efficient data structure for volumetric integration This implementation is based on the following repository: https://github.com/qianyizh/ElasticReconstruction/tree/master/Integrate The reference is: Q.-Y. Zhou and V. Koltun Dense Scene Reconstruction with Points of Interest In SIGGRAPH 2013
An observed depth pixel gives two types of information: (a) an approximation of the nearby surface, and (b) empty space from the camera to the surface. They induce two core concepts of volumetric integration: weighted average of a truncated signed distance function (TSDF), and carving. The weighted average of TSDF is great in addressing the Gaussian noise along surface normal and producing a smooth surface output. The carving is great in removing outlier structures like floating noise pixels and bumps along structure edges.
| open3d::integration::ScalableTSDFVolume::ScalableTSDFVolume | ( | double | voxel_length, |
| double | sdf_trunc, | ||
| TSDFVolumeColorType | color_type, | ||
| int | volume_unit_resolution = 16 , |
||
| int | depth_sampling_stride = 4 |
||
| ) |
|
override |
|
overridevirtual |
Function to extract a point cloud with normals.
Implements open3d::integration::TSDFVolume.
|
overridevirtual |
Function to extract a triangle mesh, using the marching cubes algorithm (https://en.wikipedia.org/wiki/Marching_cubes)
Implements open3d::integration::TSDFVolume.
| std::shared_ptr< geometry::PointCloud > open3d::integration::ScalableTSDFVolume::ExtractVoxelPointCloud | ( | ) |
|
overridevirtual |
Function to integrate an RGB-D image into the volume.
Implements open3d::integration::TSDFVolume.
|
overridevirtual |
Function to reset the TSDFVolume.
Implements open3d::integration::TSDFVolume.
| int open3d::integration::ScalableTSDFVolume::depth_sampling_stride_ |
| double open3d::integration::ScalableTSDFVolume::volume_unit_length_ |
| int open3d::integration::ScalableTSDFVolume::volume_unit_resolution_ |
| std::unordered_map<Eigen::Vector3i, VolumeUnit, utility::hash_eigen::hash<Eigen::Vector3i> > open3d::integration::ScalableTSDFVolume::volume_units_ |
Assume the index of the volume unit is (x, y, z), then the unit spans from (x, y, z) * volume_unit_length_ to (x + 1, y + 1, z + 1) * volume_unit_length_


CSV Generator for Teachers - Excel Export Hints
To export your roster, use Excel's export feature to convert the roster table to a comma separated value (CSV) file and save it. After you save the file, you can import the CSV file to the service of your choice.
- Click "File" on the Excel menu. The Info page opens.
- Click "Export" on the left side command list to open the Export page.
- Under the Export header, click "Change file type"
- Under Other FileTypes, click CSV (Comma delimited)
- Click "Save as" and give your .csv file a name and a save location


You asked for password reset for email {{ email }}. Follow the link below: {{ protocol}}://{{ domain }}{% url 'password_reset_confirm' uidb64=uid token=token %} If this is not you ignore the message and login to your account with your Password


|
SuanShu, a Java numerical and statistical library | |||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object com.numericalmethod.suanshu.stats.random.RNG
public class RNG
This is the global pseudo-random number generator for the SuanShu library. All built-in random number and distribution generators call this class.
The following code always return the same instance of the global pseudo-random number generator. No new instance is created.
RandomNumberGenerator rng = new RNG();
Seeding this RNG seeds the whole library.
| Constructor Summary | |
|---|---|
RNG()
|
| Method Summary | |
|---|---|
double |
nextDouble()
Get a double between 0 and 1. |
long |
nextLong()
Get the next random long . |
static double |
random()
Get a double between 0 and 1 . |
void |
seed(long... seeds)
Seed the global pseudo-random number generator. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public RNG()
| Method Detail |
|---|
public static double random()
double
between 0
and 1
.
Returned values are chosen pseudorandomly with (approximately) uniform distribution from that range.
double
between 0
and 1
public void seed(long... seeds)
Although seeds
is a long array, we use only the first element,
namely, seeds[0]
.
seed
in interface RandomNumberGenerator
seeds
- the seedpublic double nextDouble()
This is the same as calling
double u = RNG.random();
In other words, the following code gives a reference to the same global random number generator.
RandomNumberGenerator rng = new RNG();
nextDouble
in interface RandomNumberGenerator
public long nextLong()
RandomLongGenerator
long
.
nextLong
in interface RandomLongGenerator
long
|
SuanShu, a Java numerical and statistical library | |||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |


Following on from Corncrake Project, the first in a series of what might be called Hooting Yard's Readers' Digest-style digested news stories, here is another one. Actually, this one is so digested that I have plucked just a single phrase from it.
… tinkering with a generator, while handling a sausage …
If I end up posting more of these enticing little bagatelles, they will need a proper collective name. “Hooting Yard Digestive Biscuits”, perhaps.


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Progressive Web Apps (PWA's) represent the evolution of the standard web app web developers have come to know and love. If you're not familiar with them, that's okay! Think of them as browser apps that use some modern Web APIs to provide an app-like experience.
Capacitor supports Progressive Web Apps, which means it supports any kind of web app whether or not it uses these APIs.
Capacitor Core is a JavaScript library that runs on all platforms that Capacitor supports, and web is no different.
Generally, apps will be using a framework with a build system that supports importing JavaScript modules. In that case, simply import Capacitor at the top of your app and you're set:
import { Capacitor } from '@capacitor/core';
To use a plugin, import Plugins
and call it, noting that only plugins
with web support will actually provide useful functionality:
import { Plugins } from '@capacitor/core';
const position = await Plugins.Geolocation.getCurrentPosition();
To use Capacitor core in a web app that is not using a build system or bundler/module loader,
you must set bundledWebRuntime
to true
in your capacitor.config.json
, tell capacitor to
copy the specified version of Capacitor Core into your project,
and then import capacitor.js
into your index.html
:
{
"bundledWebRuntime": true
}
Copy to your project:
npx cap copy web
In index.html
, import capacitor.js
before your app's JS:
<script src="capacitor.js"></script>
<script src="your/app.js"></script>
Chances are, you're using a framework like Ionic for UI components and building. To develop your Capacitor web app, just use your framework!
If you're not using a framework, Capacitor comes with a small development service with HTML5 routing support. To use it, run:
npx cap serve
When you're ready to publish your Progressive Web App and share it with the world,
just upload the contents of your web directory (default: www/
). That will contain
everything you need to run your app!


break
(PHP 4, PHP 5, PHP 7)
break 结束当前 for，foreach，while，do-while 或者 switch 结构的执行。
break 可以接受一个可选的数字参数来决定跳出几重循环。
\n";
}
/* 使用可选参数 */
$i = 0;
while (++$i) {
switch ($i) {
case 5:
echo "At 5
\n";
break 1; /* 只退出 switch. */
case 10:
echo "At 10; quitting
\n";
break 2; /* 退出 switch 和 while 循环 */
default:
break;
}
}
?>
break 的更新记录
版本 说明
5.4.0 break 0; 不再合法。这在之前的版本被解析为 break 1;。
5.4.0 取消变量作为参数传递（例如 $num = 2; break $num;）。
User Contributed Notes 17 notes
===============================================================================
A break statement that is in the outer part of a program (e.g. not in a control
loop) will end the script. This caught me out when I mistakenly had a break in
an if statement
i.e.
will only show "hello"
===============================================================================
vlad at vlad dot neosurge dot net wrote on 04-Jan-2003 04:21
> Just an insignificant side not: Like in C/C++, it's not
> necessary to break out of the default part of a switch
> statement in PHP.
It's not necessary to break out of any case of a switch statement in PHP, but
if you want only one case to be executed, you have do break out of it (even out
of the default case).
Consider this:
';
case 'Orange':
echo '$a is an orange';
}
?>
This prints (in PHP 5.0.4 on MS-Windows):
$a is not an orange
$a is an orange
Note that the PHP documentation does not state the default part must be the
last case statement.
===============================================================================
) or value
of $limit
*/
$to_square_root=65536;
$i=1;
$limit=4;
while (true) {
$square_root=sqrt($to_square_root);
echo "Square Root of $to_square_root is $square_root.
";
$to_square_root=$square_root;
$i=$i+1;
if ($i>$limit) // if ($i<$limit) is used, loop breaks on very first execution
break;
}
$loop=$i-1;
echo "This loop is executes for $loop times.";
/* Above codes produces following output in browser
Square Root of 65536 is 256
Square Root of 256 is 16
Square Root of 16 is 4
Square Root of 4 is 2
This loop is executes for 4 times
*/
?>
===============================================================================
If the numerical argument is higher than the number of things which can be
broken out of, it seems to me like the execution of the entire program is
stopped.
My program had 8 nested loops. Didn't bother counting them, but wrote: break
10. - Result: Code following the loops was not processed.
===============================================================================
Here is a function that returns specific files in an array, with all of the
details.
Variables
$source_folder // the location of your files
$ext // file extension you want to limit to (i.e.: *.txt)
$sec // if you only want files that are at least so old.
$limit // number of files you want to return
The function
function glob_files($source_folder, $ext, $sec, $limit){
if( !is_dir( $source_folder ) ) {
die ( "Invalid directory.\n\n" );
}
$FILES = glob($source_folder."\*.".$ext);
$set_limit = 0;
foreach($FILES as $key => $file) {
if( $set_limit == $limit ) break;
if( filemtime( $file ) > $sec ){
$FILE_LIST[$key]['path'] = substr( $file, 0, ( strrpos( $file, "
\\" ) +1 ) );
$FILE_LIST[$key]['name'] = substr( $file, ( strrpos( $file, "\\"
) +1 ) );
$FILE_LIST[$key]['size'] = filesize( $file );
$FILE_LIST[$key]['date'] = date('Y-m-d G:i:s', filemtime( $file
) );
$set_limit++;
}
}
if(!empty($FILE_LIST)){
return $FILE_LIST;
} else {
die( "No files found!\n\n" );
}
}
So....
$source_folder = "c:\temp\my_videos";
$ext = "flv"; // flash video files
$sec = "7200"; // files older than 2 hours
$limit = 2; // Only get 2 files
print_r(glob_files($source_folder, $ext, $sec, $limit));
Would return:
Array
(
[0] => Array
(
[path] => c:\temp\my_videos\
[name] => fluffy_bunnies.flv
[size] => 21160480
[date] => 2007-10-30 16:48:05
)
[1] => Array
(
[path] => c:\temp\my_videos\
[name] => synergymx.com.flv
[size] => 14522744
[date] => 2007-10-25 15:34:45
)
===============================================================================
Prints:
Hello 1 2 3 world.
===============================================================================
if you, like me, are used to C, 'break' in php is likely to catch you out as
well, especially after an 'if'.
===============================================================================
Just to note: break doesn't work within included file, results in fatal error.
main.php:
include1.inc:
include2.inc:
I didn't find this documented anywhere.
===============================================================================
If you wonder how to end execution of a function (as I did), it's that simple:
return
function foo($a) {
if(!$a) return;
echo 'true';
// some other code
}
foo(true) will echo 'true', foo(false) won't echo anything (as return ends
execution of the function. Of course, therefore there is no need for 'else'
before 'echo').
===============================================================================
Note that the break argument accepts any expression, including a function
result. So you may want to dynamically choose the loop level to break from:
===============================================================================
"Just an insignificant side not: Like in C/C++, it's not necessary to break out
of the default part of a switch statement in PHP."
--Yes it is, it's just that traditionally default: is the last entry of a
switch and so nothing happens after.
-If it was, for whatever reason, not the last entry the script would bawk,
there is no implicit break; associated with switch.
===============================================================================
The previous note has a somewhat stupid author: why didn't you put an example?
If I got it right, "case"s in "switch"es always need a "break".
So this switch ...
... has a problem in case "4" in that it doesn't have a "break" and this
file...
include2.inc:
... has a problem in that it has a "break" that is not in a "control structure"
(like while, for...).
In the same way, although "include2.inc" is "include"d (obvioulsy) in the script (of main.php), it still need another to wrap its content.
Likewise,
main.php
This div is generated by php\n";
include 'file.php'; ?>
echo "


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Flexigrid with dynamic data, paging, search, toolbar, and connected to a php-session based JSON file. (Show sample code)


Welcome to the emoji project.
Let me browse ❤
Emoji Projects 💡
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(find one for me 🔀)
GitHub repo


Politico.
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This is a recursive link
This is also a recursive link
This is a dead link
This is a link to an external domain
This is another link to an external domain
Page 1
Page 2
Link to a cat picture


I’m an engineer, not an artist. But recently I jumped head first into the world of pixel art specifically for creating assets from scratch for small game projects. And trust me, if I can do it, then you can too, which is why I decided to write this.
Ages ago, I programmed video games professionally. Specifically, I worked on Xbox and Playstation games like Indiana Jones, Star Wars Episode 3, and Afro Samurai, all of which required a full staff of very talented artists, animators and designers. Today, I’m more interested in smaller games that I can build myself, just one guy in a room.
Back in the day, pixel art was necessary because computers had limited memory and storage capacity, requiring artists to constrain themselves in terms of size and color depth of their
Today, these limits are a thing of the past, but the medium as an art form is stronger than ever. The pixel art canvas creates a beautiful constraint for artists to work
ith that, this has been my path so far,
If you’re just starting, I highly recommend Aesprite. It’s intuitive, cute, and the entire app is in pixel art! It works on all platforms. The trial is free (though you can’t save 😞), but it’s well worth the $15 for the full version.


Streaming Games is the funniest application that you ever see while applying principles of streaming analytics using Confluent Cloud. Built around the different games, this application ingest and store events from the game into Kafka topics and allow you to process them in near real-time using ksqlDB. In order to keep you focused this application is based on fully managed services in Confluent Cloud for both the Apache Kafka cluster as well as ksqlDB.
To implement streaming analytics in the game we built a scoreboard using ksqlDB. The scoreboard will be a table containing aggregated metrics of the players such as their highest score, the highest level achieved, and the number of times that the player loses. As new events arrive the scoreboard gets instantly updated by the continuous queries that keep processing those events as they happen.
What you are going to need?
-
Java and Maven - The UI layer of the application relies on two APIs that are implemented using Java, therefore you will need to have Java 11+ installed to build the source-code. The build itseld is implemented using Maven, and it is triggered automatically by Terraform.
-
Install jq on your local computer
-
Confluent Cloud CLI - During the demo setup, a bash script will set up the whole Confluent Cloud environment for you. To do that it will need to have the Confluent Cloud CLI installed locally. You can find instructions about how to install it here. v1.7.0 or later is required, logged in with the
--save
argument which saves your Confluent Cloud user login credentials or refresh token (in the case of SSO) to the localnetrc
file. -
Confluent Cloud account - If you do not have a Confluent Cloud account, you can create it with instructions below.
-
Terraform (0.14+) - The application is automatically created using Terraform. Besides having Terraform installed locally, will need to provide your cloud provider credentials so Terraform can create and manage the resources for you.
-
AWS account - This demo/Workshop runs on AWS
PRE-WORK:
|
Follow this part carefully before the workshop! |
Step 1. Install workshop dependencies
Run the following command to install workshop dependencies
brew install terraform \
mvn \
jq \
awscli \
confluent-cli
Step 2. Signup for Confluent Cloud
You can Create a Confluent Cloud Account following this link: Try Confluent Cloud For Free (Games Workshop)
If you want to create a Confluent Cloud account from the AWS Marketplace, follow this link: Try Confluent Cloud For Free - Sign up from AWS Marketplace (Games Workshop)
Step 2a. Create a Cloud API Key
-
Open the Confluent Cloud Console and click Granular access tab, and then click Next.
-
Click Create a new one to create tab. Enter the new service account name (
tf_runner
), then click Next. -
The Cloud API key and secret are generated for the
tf_runner
service account. Save your Cloud API key and secret in a secure location. You will need this API key and secret to use the Confluent Terraform Provider. -
Assign the
OrganizationAdmin
role to thetf_runner
service account by following this guide.
Step 2b. Configure the Confluent CLI
-
Log in to the Confluent Cloud CLI:
confluent login --save
The --save flag will save your Confluent Cloud login credentials to the ~/.netrc file.
Step 3.  Configure the deployment
The whole workshop creation is scripted. The script will leverage Terraform to: * As mentioned before the application uses a Kafka cluster running in a fully managed service for Apache Kafka. Therefore the first thing it will provision is Confluent Cloud resources using the Confluent Cloud CLI. If you are interested in how you can create a cluster in Confluent Cloud via the Web UI have a look at our Quick Start for Apache Kafka using Confluent Cloud. * Spin up the other resources needed in AWS
Run the following steps to configure the workshop
-
Create the demo.cfg file using the example provided in the config folder
cp config/demo.cfg.example config/demo.cfg
-
Provide the required information on the 'demo.cfg' file
export TF_VAR_aws_profile="<AWS_PROFILE>" export TF_VAR_aws_region="eu-west-2" export TF_VAR_schema_registry_region="eu-central-1" export TF_VAR_confluent_cloud_api_key=="<CONFLUENT_CLOUD_API_KEY>" export TF_VAR_confluent_cloud_api_secret="<CONFLUENT_CLOUD_API_SECRET>"
we advice using the utility gimme-aws-creds if you use Okta to login in AWS. You can also use the granted CLI for AWS creds. Amend any of the config as you see fit for your preference (Like the aws region or Schema registry Region)
-
If you are not using gimme-aws-creds, create a credential file as described here. The file in
~/.aws/credentials
should look like this (An example below)[default] aws_access_key_id=AKIAIOSFODNN7EXAMPLE aws_secret_access_key=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY
You can set
TF_VAR_aws_profile="default"
in thedemo.cfg
file -
Notice the optional configuration in the same file. Change the value of
TF_VAR_games_list
so that contains only the game 2048. Also make sure therun_as_workshop
is set totrue
################################################### ########### Optional Configs ############ ################################################### export TF_VAR_games_list='["2048"]' export run_as_workshop="true"
Step 5. Deploying the application
The application is essentially a set of HTML/CSS/JS files that forms a microsite that can be hosted statically anywhere. But for the sake of coolness we will deploy this microsite in a S3 bucket from AWS. This bucket will be created in the same region selected for the Confluent Cloud cluster to ensure that the application will be co-located. The application will emit events that will be processed by a event handler implemented as an API Gateway which uses a Lambda function as backend. This event handler API receives the events and writes them into Kafka using ksqlDB.
Please note that during deployment, the script takes care of creating the required Kafka topics and also the ksqlDB queries. Therefore, there is no need to manually create them.
-
Start the demo creation
./start.sh
-
At the end of the provisioning the Output with the demo endpoint will be shown. Paste the demo url in your browser and start playing!
Outputs: Game = https://d************.cloudfront.net/
-
Wait for the content to be available
Note It could take a bit of time for the content to be available via cloudfront. If accessing the link returned by the script you see an error message like the one below, don’t worry: just give it some more minutes and try the link again. Make sure you are not hitting refresh, as cloudfront might have sent you to a different url. It can take up to 1hr for the cloudfront distribution to be available.
You can try to speed up this process using the trick explained in this medium article: Is your CloudFront distribution stuck “in progress”?
Step 6. The scoreboard
The scoreboard can be visualized in real time by clicking on the SCOREBOARD link in the 2048 game (top right corner).
Note At the beginning you will not be able to use this feature, as you first need to create the ksqlDB queries that populate the scoreboard
But first let’s make sure the data is flowing into the Confluent.
-
In Confluent UI go to the environment and the cluster within it, created by the terraform script - should start with with
streaming-games
-
Click on Topics and choose
USER_GAME
topic
As users engage with the 2048 game, two types of events will be generated. The first is referred to as the "User Game" event and includes information about the user’s current game state, such as their score, level, and remaining lives.
The second type of event is called the "User Losses" event, which as the name suggests, captures data related to the user’s loss in the game. This event is triggered when the player reaches the game-over state.
To build a scoreboard out of this, a streaming analytics pipeline will be created to transform these raw events into a table with the scoreboard that is updated in near real-time.
Now that the data is flowing into Confluent, we can create the ksqlDB queries that populate the scoreboard.
Step 9. Run the ksqlDB queries
To implement the pipeline we use ksqlDB. Run the following queries in your ksqlDB instance in Confluent Cloud. Set auto.offset.reset
to Earliest
Create the LOSSES_PER_USER Table
Create a table to count the number of losses for each player.
CREATE TABLE LOSSES_PER_USER AS
SELECT
USER_KEY,
USER_KEY -> USER AS USER,
USER_KEY -> GAME_NAME AS GAME_NAME,
COUNT(USER_KEY) AS TOTAL_LOSSES
FROM
USER_LOSSES
GROUP BY
USER_KEY;
Create the STATS_PER_USER Table
Run this query
CREATE TABLE STATS_PER_USER AS
SELECT
UG.USER_KEY AS USER_KEY,
UG.USER_KEY -> USER AS USER,
UG.USER_KEY -> GAME_NAME AS GAME_NAME,
MAX(UG.GAME -> SCORE) AS HIGHEST_SCORE,
MAX(UG.GAME -> LEVEL) AS HIGHEST_LEVEL,
MAX(
CASE WHEN LPU.TOTAL_LOSSES IS NULL THEN CAST(0 AS BIGINT) ELSE LPU.TOTAL_LOSSES END
) AS TOTAL_LOSSES
FROM
USER_GAME UG
LEFT JOIN LOSSES_PER_USER LPU ON UG.USER_KEY = LPU.USER_KEY
GROUP BY
UG.USER_KEY;
Check the scoreboard
Now look at the scoreboard, it should be populated
the Scoreboard logic
ksqlDB supports Pull queries, where you can get the latest value for a given key. The 2048 app uses this feature in order to show you the scoreboard:
A query to the STATS_PER_USER table is sent to ksqlDB, to get all the players scores for the selected game.
SELECT
USER_KEY->USER,
HIGHEST_SCORE,
HIGHEST_LEVEL,
TOTAL_LOSSES
FROM STATS_PER_USER
WHERE GAME_NAME='2048';
Step 10. Destroy the resources (save money!)
The great thing about Cloud resources is that you can spin the up and down with few commands. Once you are finished with this worksho/demo , remember to destroy the resources you created today, to avoid incuring in charges if you are not planning to use this. You can always spin it up again anytime you want (uncomment the run_as_workshop variable in the config file if you want to automate the creation of ksqlDB queries, so you can demo the app without any manual effort)!
Note: When you are done with the application, you can automatically destroy all the resources created using the command below:
./stop.sh


Tuesday 24
This Chrome extension is completely free and made by one developer, any small donation will be very grateful !!


The Map Method
Similar to .each method, the .map method runs each element of the array through the code block and returns the processed elements.
Unlike the .each method, the .map method will actually return a new array of the altered elements. This new array is the same size as the original, in the same order, but with the new elements.
Implementing the map method is pretty easy stuff. Take the name of your array and slap .map behind and you’re gravy.
Example:
#Our Array:
arr = [ 1, 2, 3, 4, 5]
#daisy chained with another defined method:
arr.map.reverse
#returns:
[ 5, 4, 3, 2, 1 ]
#With a method:
arr.map {|num| num * 2}
#returns:
[ 2, 4, 6, 8, 10 ]


Ex-footballer arrested on suspicion of running Spain drugs ring
Madrid - Former Spanish footballer Sergio Contreras, who played for Marseille, was arrested on Tuesday on suspicion of heading a drugs ring, police said following a string of raids in southern Spain.
The 36-year-old was arrested in the seaside town of Estepona during a string of simultaneous police raids which also took place in Malaga, Granada and Sevilla, police said.
"Some 20 people were arrested. They were in possession of nearly a tonne of hashish and €700,000," a police spokeswoman said, indicating the operation was "still under way".
Speaking to AFP, a police source said Contreras was "in charge" of the smuggling outfit.
"He was the head of the organisation," the source told AFP, saying the raids had also turned up various weapons, including sidearms and rifles, as well as paperwork.
Contreras is currently being held at a police station in Malaga.
After starting out with Malaga, Contreras then spent several seasons at Marseille before moving to Greek side Aris Thessaloniki in a career which took him to Azerbaijan, Germany, Bolivia and the US.
The police operation was dubbed "Operation MasKoke" in a nod to the former striker's nickname "Koke" - not to be confused with the current Atletico Madrid captain Jorge Resurreccion Merodio, who goes by the same moniker.


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Miscellaneous - Forums - StarCraft II
I also would like to say that custom maps in Starcraft 2 are not as innovative . Hey everyone, I'm looking for an old Use Map Settings game from Starcraft 1.
http://us.battle.net/sc2/en/forum/13437/Starcraft: Use Map Setting Group (1 Member)
This group is a group discussing of various Starcraft Broodwar TM Use Map Settings.
http://www.goodreads.com/group/show/11708-starcraft-use-map-settingUMS - StarCraft and StarCraft II Wiki
Use Map Settings is a selectable game type in StarCraft and StarCraft II in which . upon building a base, or many other things used in melee or free for all maps.
http://starcraft.wikia.com/wiki/UMSStarcraft: Maps, Download Maps for Starcraft
If you're a modder and want to host your files on SI, please use our file uploader. . The Test Lab map is a small part of a beautifull capaign called Saving . A collection of maps i made for StarCraft in anticipation of its younger, bolder sibling.
http://www.strategyinformer.com/pc/maps/starcraft/map.html
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10 Ways to Improve Your Skills on StarCraft - wikiHow
Starcraft is an older game with a few basic strategies that work well against newbies (new players) but require no skills . Popular Use Map Settings (UMS) maps .
http://www.wikihow.com/Improve-Your-Skills-on-StarCraft -
GameFAQs: Starcraft (PC) Mapmaker's Guide by Renolan
Jun 26, 2002 . In a non-use map settings game, it is also where the player's command . How do I get doors and floor/wall traps to work in installation maps?
http://www.gamefaqs.com/pc/25418-starcraft/faqs/13473 -
Starcraft 2 will be dead before Legacy of the Void if Blizzard doesn't ...
Oct 16, 2012 . So why does it feel like growth has stagnated in Starcraft 2? . The list changed as new maps were hosted (if you refreshed), and it had a scroll . 'Use Map Settings' was an actual checkbox when creating a game in SC/BW.
http://www.reddit.com/r/starcraft/comments/11m21k/starcraft_2_will_be_dead_before_legacy_of_the/they kill emo girl in mexico
98 people's favorite
-
Maps - StarCraft 2 Maps - SC2Mapster
Map Feedback Thread: http://www.sc2mapster.com/forums/player-zone/map- . One is the tactical command of your troops while the other is using acquired . A wide variety of equipment, strategies, and game settings provide tonnes of .
http://www.sc2mapster.com/maps/ -
RTSC Starcraft Maps
Feb 26, 2005 . That is, the physics of a StarCraft map is identical to that of a tabletop . you have to set the game to Use Map Settings (UMS) to enable the .
http://www.rakrent.com/rtsc/html/scbw3.htm


{% extends 'base.html' %} {% block title %} Confirm Password Reset - {{ block.super }} {% endblock title %} {% block analytics %} analytics.page("Password Reset Confirm"); {% endblock %} {% block content %}
Please enter your new password twice so we can verify you typed it in correctly.
{% else %}The password reset link was invalid, possibly because it has already been used. Please request a new password reset.
{% endif %}


The following steps to help you get started with Tea in TextPad:
1.
Enable Tea syntax highlighting
2.
Add the Tea compiler as a tool in TextPad
3.
Add a filter for Tea files to the Open dialog box
Before you can do syntax highlighting with Tea
files, you will need to obtain its syntax definition file, tea.syn.† This can be downloaded from http://se-mmasse/teac/tea.syn.† Copy this file to your TextPad installationís
System directory.† Next follow
these steps:
1.
From
the Configure menu, choose New Document Class. The Document Class Wizard is
displayed.
2.
In
the Documet Class Name box, type Tea and click Next.
3.
In
the Class Members box, type *.tea and click Next.
4.
Check
the box to enable syntax highlighting.
5.
From
the drop-down list, choose tea.syn and click Next.
6.
Click
Finish.
1.
From
the Configure menu, choose Preferences. The Preferences dialog box is
displayed.
2.
Select
"Tools".
3.
Click
Add, and choose the option "DOS Command".
4.
Type
in a command of the form:† java -cp Toolbox.jar
org.teatrove.toolbox.Teac <options>.†
This is the command that will run the Tea compiler on an individual file
or set of files.† The exact syntax and
options of Teac can be found here.† The TextPad special variable documentation
is available here.† Choose the command that works best for your
needs.†
TIP: †Consider placing TextPad
workspace files at the root directory of your templates and using the $WspDir
variable as a parameter to the Teac sourcepath option.
5.
Optionally
rename the tool by clicking it twice, slower than double click speed, and typing
Teac;. You may insert an "&" before the character you want
to use as a menu mnemonic.
6.
Click
Apply and then Select "Teac".
7.
Type the
following text in the Regular expression text field:† \(^.*\.tea\):\([0-9]+\):
8.
Select
1 for the "File" Register and 2 for the "Line"
Register.† This will allow you to jump
to errors in your Tea files.
9.
If
necessary, click the up arrow to move the new tool to the required position on
the menu.
10.
Click
OK.
1.
From
the Configure menu, choose Preferences. The Preferences dialog box is
displayed.
2.
Select
"File Name Filters".
3.
Click
New.
4.
Change
the description to something like Tea or Tea (*.tea).
5.
Type *.tea,
in the wild cards box.
6.
If necessary,
click Move Up, to move the filter to the required position.
7.
Click
OK.


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--- layout: post authors: ["Greg Wilson"] title: I Screwed Up (or, Why Automation Isn't Always a Good Thing) date: 2012-10-17 time: "09:00:00" tags: ["Community"] ---
A couple of months ago, a group of astronomers asked us to run a workshop at Caltech in conjunction with their annual get-together: they'd cover travel costs for two instructors, and seats at the workshop would be reserved for them. Which would have been fine, except when I pushed the button to create the workshop, I also created an EventBrite signup page and a Software Carpentry bootcamp page with open enrollment. As a result, I had to send email to 15 people last night to say that there isn't actually room.
I'm very sorry for my mistake, particularly as some would-be participants moved other commitments so that they could attend. I'll try to arrange another workshop in the area as quickly as possible, and put everyone who was bumped at the front of the line for it. I'll also try to put some safety checks into my workshop setup process (or better yet, not try to set things up at 11:00 pm after a long day at work).
:-(