perlapio - perl's IO abstraction interface.
#define PERLIO_NOT_STDIO 0 /* For co-existence with stdio only */
#include <perlio.h> /* Usually via #include <perl.h> */
PerlIO *PerlIO_stdin(void);
PerlIO *PerlIO_stdout(void);
PerlIO *PerlIO_stderr(void);
PerlIO *PerlIO_open(const char *path,const char *mode);
PerlIO *PerlIO_fdopen(int fd, const char *mode);
PerlIO *PerlIO_reopen(const char *path, /* deprecated */
const char *mode, PerlIO *old);
int PerlIO_close(PerlIO *f);
int PerlIO_stdoutf(const char *fmt,...)
int PerlIO_puts(PerlIO *f,const char *string);
int PerlIO_putc(PerlIO *f,int ch);
SSize_t PerlIO_write(PerlIO *f,const void *buf,size_t numbytes);
int PerlIO_printf(PerlIO *f, const char *fmt,...);
int PerlIO_vprintf(PerlIO *f, const char *fmt, va_list args);
int PerlIO_flush(PerlIO *f);
int PerlIO_eof(PerlIO *f);
int PerlIO_error(PerlIO *f);
void PerlIO_clearerr(PerlIO *f);
int PerlIO_getc(PerlIO *d);
int PerlIO_ungetc(PerlIO *f,int ch);
SSize_t PerlIO_read(PerlIO *f, void *buf, size_t numbytes);
int PerlIO_fileno(PerlIO *f);
void PerlIO_setlinebuf(PerlIO *f);
Off_t PerlIO_tell(PerlIO *f);
int PerlIO_seek(PerlIO *f, Off_t offset, int whence);
void PerlIO_rewind(PerlIO *f);
int PerlIO_getpos(PerlIO *f, SV *save); /* prototype changed */
int PerlIO_setpos(PerlIO *f, SV *saved); /* prototype changed */
int PerlIO_fast_gets(PerlIO *f);
int PerlIO_has_cntptr(PerlIO *f);
SSize_t PerlIO_get_cnt(PerlIO *f);
char *PerlIO_get_ptr(PerlIO *f);
void PerlIO_set_ptrcnt(PerlIO *f, char *ptr, SSize_t count);
int PerlIO_canset_cnt(PerlIO *f); /* deprecated */
void PerlIO_set_cnt(PerlIO *f, int count); /* deprecated */
int PerlIO_has_base(PerlIO *f);
char *PerlIO_get_base(PerlIO *f);
SSize_t PerlIO_get_bufsiz(PerlIO *f);
PerlIO *PerlIO_importFILE(FILE *stdio, const char *mode);
FILE *PerlIO_exportFILE(PerlIO *f, const char *mode);
FILE *PerlIO_findFILE(PerlIO *f);
void PerlIO_releaseFILE(PerlIO *f,FILE *stdio);
int PerlIO_apply_layers(PerlIO *f, const char *mode,
const char *layers);
int PerlIO_binmode(PerlIO *f, int ptype, int imode,
const char *layers);
void PerlIO_debug(const char *fmt,...)
Perl's source code, and extensions that want maximum portability, should use the
above functions instead of those defined in ANSI C's stdio.h. The perl
headers (in particular "perlio.h") will
"#define" them to the I/O mechanism selected
at Configure time.
The functions are modeled on those in stdio.h, but
parameter order has been "tidied up a little".
"PerlIO *" takes the place of
FILE *. Like FILE * it should be treated as opaque (it is probably safe to
assume it is a pointer to something).
There are currently two implementations:
- 1. USE_STDIO
- All above are #define'd to stdio functions or are trivial wrapper
functions which call stdio. In this case only PerlIO * is a FILE *.
This has been the default implementation since the abstraction was
introduced in perl5.003_02.
- 2. USE_PERLIO
- Introduced just after perl5.7.0, this is a re-implementation of the above
abstraction which allows perl more control over how IO is done as it
decouples IO from the way the operating system and C library choose to do
things. For USE_PERLIO PerlIO * has an extra layer of indirection - it is
a pointer-to-a-pointer. This allows the PerlIO * to remain with a known
value while swapping the implementation around underneath at run
time. In this case all the above are true (but very simple) functions
which call the underlying implementation.
This is the only implementation for which
"PerlIO_apply_layers()" does anything
"interesting".
The USE_PERLIO implementation is described in perliol.
Because "perlio.h" is a thin layer (for efficiency) the
semantics of these functions are somewhat dependent on the underlying
implementation. Where these variations are understood they are noted
below.
Unless otherwise noted, functions return 0 on success, or a
negative value (usually "EOF" which is
usually -1) and set "errno" on error.
- PerlIO_stdin(), PerlIO_stdout(),
PerlIO_stderr()
- Use these rather than "stdin",
"stdout",
"stderr". They are written to look like
"function calls" rather than variables because this makes it
easier to make them function calls if platform cannot export data
to loaded modules, or if (say) different "threads" might have
different values.
- PerlIO_open(path, mode), PerlIO_fdopen(fd,mode)
- These correspond to fopen()/fdopen() and the arguments are
the same. Return "NULL" and set
"errno" if there is an error. There may
be an implementation limit on the number of open handles, which may be
lower than the limit on the number of open files -
"errno" may not be set when
"NULL" is returned if this limit is
exceeded.
- PerlIO_reopen(path,mode,f)
- While this currently exists in both implementations, perl itself does not
use it. As perl does not use it, it is not well tested.
Perl prefers to "dup" the
new low-level descriptor to the descriptor used by the existing PerlIO.
This may become the behaviour of this function in the future.
- PerlIO_printf(f,fmt,...), PerlIO_vprintf(f,fmt,a)
- These are fprintf()/vfprintf() equivalents.
- PerlIO_stdoutf(fmt,...)
- This is printf() equivalent. printf is #defined to this function,
so it is (currently) legal to use
"printf(fmt,...)" in perl sources.
- PerlIO_read(f,buf,count), PerlIO_write(f,buf,count)
- These correspond functionally to fread() and fwrite() but
the arguments and return values are different. The PerlIO_read()
and PerlIO_write() signatures have been modeled on the more sane
low level read() and write() functions instead: The
"file" argument is passed first, there is only one
"count", and the return value can distinguish between error and
"EOF".
Returns a byte count if successful (which may be zero or
positive), returns negative value and sets
"errno" on error. Depending on
implementation "errno" may be
"EINTR" if operation was interrupted
by a signal.
- PerlIO_close(f)
- Depending on implementation "errno" may
be "EINTR" if operation was interrupted
by a signal.
- PerlIO_puts(f,s), PerlIO_putc(f,c)
- These correspond to fputs() and fputc(). Note that arguments
have been revised to have "file" first.
- PerlIO_ungetc(f,c)
- This corresponds to ungetc(). Note that arguments have been revised
to have "file" first. Arranges that next read operation will
return the byte c. Despite the implied "character" in the
name only values in the range 0..0xFF are defined. Returns the byte
c on success or -1 ("EOF") on
error. The number of bytes that can be "pushed back" may vary,
only 1 character is certain, and then only if it is the last character
that was read from the handle.
- PerlIO_getc(f)
- This corresponds to getc(). Despite the c in the name only byte
range 0..0xFF is supported. Returns the character read or -1
("EOF") on error.
- PerlIO_eof(f)
- This corresponds to feof(). Returns a true/false indication of
whether the handle is at end of file. For terminal devices this may or may
not be "sticky" depending on the implementation. The flag is
cleared by PerlIO_seek(), or PerlIO_rewind().
- PerlIO_error(f)
- This corresponds to ferror(). Returns a true/false indication of
whether there has been an IO error on the handle.
- PerlIO_fileno(f)
- This corresponds to fileno(), note that on some platforms, the
meaning of "fileno" may not match Unix. Returns -1 if the handle
has no open descriptor associated with it.
- PerlIO_clearerr(f)
- This corresponds to clearerr(), i.e., clears 'error' and (usually)
'eof' flags for the "stream". Does not return a value.
- PerlIO_flush(f)
- This corresponds to fflush(). Sends any buffered write data to the
underlying file. If called with "NULL"
this may flush all open streams (or core dump with some USE_STDIO
implementations). Calling on a handle open for read only, or on which last
operation was a read of some kind may lead to undefined behaviour on some
USE_STDIO implementations. The USE_PERLIO (layers) implementation tries to
behave better: it flushes all open streams when passed
"NULL", and attempts to retain data on
read streams either in the buffer or by seeking the handle to the current
logical position.
- PerlIO_seek(f,offset,whence)
- This corresponds to fseek(). Sends buffered write data to the
underlying file, or discards any buffered read data, then positions the
file descriptor as specified by offset and whence (sic).
This is the correct thing to do when switching between read and write on
the same handle (see issues with PerlIO_flush() above). Offset is
of type "Off_t" which is a perl
Configure value which may not be same as stdio's
"off_t".
- PerlIO_tell(f)
- This corresponds to ftell(). Returns the current file position, or
(Off_t) -1 on error. May just return value system "knows"
without making a system call or checking the underlying file descriptor
(so use on shared file descriptors is not safe without a
PerlIO_seek()). Return value is of type
"Off_t" which is a perl Configure value
which may not be same as stdio's
"off_t".
- PerlIO_getpos(f,p), PerlIO_setpos(f,p)
- These correspond (loosely) to fgetpos() and fsetpos().
Rather than stdio's Fpos_t they expect a "Perl Scalar Value" to
be passed. What is stored there should be considered opaque. The layout of
the data may vary from handle to handle. When not using stdio or if
platform does not have the stdio calls then they are implemented in terms
of PerlIO_tell() and PerlIO_seek().
- PerlIO_rewind(f)
- This corresponds to rewind(). It is usually defined as being
PerlIO_seek(f,(Off_t)0L, SEEK_SET);
PerlIO_clearerr(f);
- PerlIO_tmpfile()
- This corresponds to tmpfile(), i.e., returns an anonymous PerlIO or
NULL on error. The system will attempt to automatically delete the file
when closed. On Unix the file is usually
"unlink"-ed just after it is created so
it does not matter how it gets closed. On other systems the file may only
be deleted if closed via PerlIO_close() and/or the program exits
via "exit". Depending on the
implementation there may be "race conditions" which allow other
processes access to the file, though in general it will be safer in this
regard than ad. hoc. schemes.
- PerlIO_setlinebuf(f)
- This corresponds to setlinebuf(). Does not return a value. What
constitutes a "line" is implementation dependent but usually
means that writing "\n" flushes the buffer. What happens with
things like "this\nthat" is uncertain. (Perl core uses it
only when "dumping"; it has nothing to do with $|
auto-flush.)
There is outline support for co-existence of PerlIO with stdio. Obviously if
PerlIO is implemented in terms of stdio there is no problem. However in other
cases then mechanisms must exist to create a FILE * which can be passed to
library code which is going to use stdio calls.
The first step is to add this line:
#define PERLIO_NOT_STDIO 0
before including any perl header files. (This will probably
become the default at some point). That prevents "perlio.h" from
attempting to #define stdio functions onto PerlIO functions.
XS code is probably better using "typemap" if it expects
FILE * arguments. The standard typemap will be adjusted to comprehend any
changes in this area.
- PerlIO_importFILE(f,mode)
- Used to get a PerlIO * from a FILE *.
The mode argument should be a string as would be passed to
fopen/PerlIO_open. If it is NULL then - for legacy support - the code
will (depending upon the platform and the implementation) either attempt
to empirically determine the mode in which f is open, or use
"r+" to indicate a read/write stream.
Once called the FILE * should ONLY be closed by calling
"PerlIO_close()" on the returned
PerlIO *.
The PerlIO is set to textmode. Use PerlIO_binmode if this is
not the desired mode.
This is not the reverse of
PerlIO_exportFILE().
- PerlIO_exportFILE(f,mode)
- Given a PerlIO * create a 'native' FILE * suitable for passing to code
expecting to be compiled and linked with ANSI C stdio.h. The mode
argument should be a string as would be passed to fopen/PerlIO_open. If it
is NULL then - for legacy support - the FILE * is opened in same mode as
the PerlIO *.
The fact that such a FILE * has been 'exported' is recorded,
(normally by pushing a new :stdio "layer" onto the PerlIO *),
which may affect future PerlIO operations on the original PerlIO *. You
should not call "fclose()" on the file
unless you call "PerlIO_releaseFILE()"
to disassociate it from the PerlIO *. (Do not use
PerlIO_importFILE() for doing the disassociation.)
Calling this function repeatedly will create a FILE * on each
call (and will push an :stdio layer each time as well).
- PerlIO_releaseFILE(p,f)
- Calling PerlIO_releaseFILE informs PerlIO that all use of FILE * is
complete. It is removed from the list of 'exported' FILE *s, and the
associated PerlIO * should revert to its original behaviour.
Use this to disassociate a file from a PerlIO * that was
associated using PerlIO_exportFILE().
- PerlIO_findFILE(f)
- Returns a native FILE * used by a stdio layer. If there is none, it will
create one with PerlIO_exportFILE. In either case the FILE * should be
considered as belonging to PerlIO subsystem and should only be closed by
calling "PerlIO_close()".
In addition to standard-like API defined so far above there is an
"implementation" interface which allows perl to get at internals of
PerlIO. The following calls correspond to the various FILE_xxx macros
determined by Configure - or their equivalent in other implementations. This
section is really of interest to only those concerned with detailed perl-core
behaviour, implementing a PerlIO mapping or writing code which can make use of
the "read ahead" that has been done by the IO system in the same way
perl does. Note that any code that uses these interfaces must be prepared to
do things the traditional way if a handle does not support them.
- PerlIO_fast_gets(f)
- Returns true if implementation has all the interfaces required to allow
perl's "sv_gets" to "bypass"
normal IO mechanism. This can vary from handle to handle.
PerlIO_fast_gets(f) = PerlIO_has_cntptr(f) && \
PerlIO_canset_cnt(f) && \
'Can set pointer into buffer'
- PerlIO_has_cntptr(f)
- Implementation can return pointer to current position in the
"buffer" and a count of bytes available in the buffer. Do not
use this - use PerlIO_fast_gets.
- PerlIO_get_cnt(f)
- Return count of readable bytes in the buffer. Zero or negative return
means no more bytes available.
- PerlIO_get_ptr(f)
- Return pointer to next readable byte in buffer, accessing via the pointer
(dereferencing) is only safe if PerlIO_get_cnt() has returned a
positive value. Only positive offsets up to value returned by
PerlIO_get_cnt() are allowed.
- PerlIO_set_ptrcnt(f,p,c)
- Set pointer into buffer, and a count of bytes still in the buffer. Should
be used only to set pointer to within range implied by previous calls to
"PerlIO_get_ptr" and
"PerlIO_get_cnt". The two values
must be consistent with each other (implementation may only use one
or the other or may require both).
- PerlIO_canset_cnt(f)
- Implementation can adjust its idea of number of bytes in the buffer. Do
not use this - use PerlIO_fast_gets.
- PerlIO_set_cnt(f,c)
- Obscure - set count of bytes in the buffer. Deprecated. Only usable if
PerlIO_canset_cnt() returns true. Currently used in only doio.c to
force count less than -1 to -1. Perhaps should be PerlIO_set_empty or
similar. This call may actually do nothing if "count" is deduced
from pointer and a "limit". Do not use this - use
PerlIO_set_ptrcnt().
- PerlIO_has_base(f)
- Returns true if implementation has a buffer, and can return pointer to
whole buffer and its size. Used by perl for -T / -B tests.
Other uses would be very obscure...
- PerlIO_get_base(f)
- Return start of buffer. Access only positive offsets in the buffer
up to the value returned by PerlIO_get_bufsiz().
- PerlIO_get_bufsiz(f)
- Return the total number of bytes in the buffer, this is neither the
number that can be read, nor the amount of memory allocated to the buffer.
Rather it is what the operating system and/or implementation happened to
"read()" (or whatever) last time IO was
requested.
- PerlIO_apply_layers(f,mode,layers)
- The new interface to the USE_PERLIO implementation. The layers
":crlf" and ":raw" are only ones allowed for other
implementations and those are silently ignored. (As of perl5.8
":raw" is deprecated.) Use PerlIO_binmode() below for the
portable case.
- PerlIO_binmode(f,ptype,imode,layers)
- The hook used by perl's "binmode"
operator. ptype is perl's character for the kind of IO:
- '<' read
- '>' write
- '+' read/write
imode is "O_BINARY" or
"O_TEXT".
layers is a string of layers to apply, only
":crlf" makes sense in the non USE_PERLIO case. (As of perl5.8
":raw" is deprecated in favour of passing NULL.)
Portable cases are:
PerlIO_binmode(f,ptype,O_BINARY,NULL);
and
PerlIO_binmode(f,ptype,O_TEXT,":crlf");
On Unix these calls probably have no effect whatsoever. Elsewhere
they alter "\n" to CR,LF translation and possibly cause a special
text "end of file" indicator to be written or honoured on read.
The effect of making the call after doing any IO to the handle depends on
the implementation. (It may be ignored, affect any data which is already
buffered as well, or only apply to subsequent data.)
- PerlIO_debug(fmt,...)
- PerlIO_debug is a printf()-like function which can be used for
debugging. No return value. Its main use is inside PerlIO where using real
printf, warn() etc. would recursively call PerlIO and be a problem.
PerlIO_debug writes to the file named by
$ENV{'PERLIO_DEBUG'} or defaults to stderr if
the environment variable is not defined. Typical use might be
Bourne shells (sh, ksh, bash, zsh, ash, ...):
PERLIO_DEBUG=/tmp/perliodebug.log ./perl -Di somescript some args
Csh/Tcsh:
setenv PERLIO_DEBUG /tmp/perliodebug.log
./perl -Di somescript some args
If you have the "env" utility:
env PERLIO_DEBUG=/tmp/perliodebug.log ./perl -Di somescript args
Win32:
set PERLIO_DEBUG=perliodebug.log
perl -Di somescript some args
On a Perl built without
"-DDEBUGGING", or when the
"-Di" command-line switch is not
specified, or under taint, PerlIO_debug() is a no-op.


Best Practices¶
In this section, we will learn what are the coding standards and naming conventions are in uAdmin using Golang.
Rules - Inlines¶
1.) Inline must be created in main.go after the uadmin.Register.
2.) If you have more than one inline in your project, always match the declared element in a single line inside the uadmin.RegisterInlines for easier debugging process as shown below.
uadmin.RegisterInlines(/folder_name/./struct_name of a parent model/{}, map[string]string{
"/sub_model name/": "/parent_model name/ID", // first element
"/sub_model name/": "/parent_model name/ID", // second element
"/sub_model name/": "/parent_model name/ID", // third element
})
Example:
uadmin.RegisterInlines(models.TODOID{}, map[string]string{
"Category": "TODOID",
"Friend": "TODOID",
"Item": "TODOID",
})
Rules - Models¶
1.) The first letter of a model name must be in uppercase format.
2.) Make sure the model name in your project is in singular form because if you run the application, the uAdmin Dashboard will automatically generate a model name in plural form.
3.) It is advisable to always put the model struct externally instead of joining it in the main.go. It can be called by using uadmin.Register.
4.) In every struct, uadmin.Model must always come first before creating a field.
type (struct_name) struct{
uadmin.Model
// Some codes here
}
Rules - New Project¶
1.) Make it sure it follows the model structure as shown in Tutorial Part 1.
2.) In every Go file, always remember the pattern:
// Package name (main if you are in the parent folder, folder_name if you are in the subfolders).
// Import required libraries (every Go file has github.com/uadmin/uadmin).
// Input code executions on this part.
3.) Inside the function of main.go, follow this pattern:
// uAdmin Global Configuration
// Register
// RegisterInlines
// API Handlers
// StartServer
4.) Never tamper the files inside the static folder. It may cause a widespread problem to your application.
5.) In terms of publishing, static files are not included.
6.) Suppose that you have created your own layout. Our server cannot access static files such as HTML/CSS/JS/Images. If you go to that path, it only reads the plain text. In order to serve your static files into your layout, establish a handler in main.go by using http.Handle to access them with the syntax as shown below:
http.Handle("/assets/folder_name/", http.StripPrefix("/assets/folder_name/", http.FileServer(http.Dir("./assets/folder_name/"))))
Rules - Login Process¶
1.) Avoid using common passwords such as “123456” and “password”. Use a password that contains an uppercase and lowercase letters, numbers, and special symbols for strong security.
2.) Enable two factor authentication in your user account. 2FA adds an extra layer of security that makes it harder for an attacker to access your data.
3.) Always set an email address in the user account just in case if he forgots his password.
4.) Getting the User through IsAuthenticated function
5.) For every password field in the model, apply “encrypt” tag to protect the user from security attacks.
6.) You can also apply uadmin.GenerateBase32, uadmin.GenerateBase64, or uadmin.Salt as an alternative way to secure the user’s password.
Rules - Logs¶
1.) Edit and Delete logs will allow you to “Undo” them or “Roll Back” your changes. It is a good feature for the user who accidentally made changes to the record in the database.
2.) When you access to any records you have in your system, there is a “History” button which redirects you to the Log on the top left corner.
3.) You can use “Filter” to narrow down what you are looking for. This is useful if your log has too many records in your system.


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About Me
Home
About Me
My Favorites
Here's some stuff about me.
I like programming. (Wow, who would have guessed that?)
I go to CSD.
I'm bad at making "About Me" lists.


Address
Charguia 2, Tunis 2035
Let's Talk
+216 71 111 100
General Support
<EMAIL_ADDRESS>Our Website
www.treetronix.com


The Normal Heart:
DAVID. I’m her twenty-eighth case and sixteen of them are dead. (He leaves.)
NED.
MICKEY. I don't know. Are you here to write about this?
NED. I don't know. What's wrong with that?
MICKEY. Nothing, I guess.
NED. What about you? What are you going to say? You're the one with the health column.
MICKEY. Well, I'll certainly write about it in the Native, but I'm afraid to put it in the stuff I write at work.
NED. What are you afraid of?
MICKEY. The city doesn't exactly show a burning interest in gay health. But at least I've still got my job: the Health Department has had a lot of cutbacks.
NED. How's John?


Times They Are a Changin’
Today, I had a bit of a realization. It was something that really made me realize how my mindset is changing. I was plugging along at the dojo, and looked at the clock. Something I do dozens of times a day. The difference was what I thought afterwards. It was around 3:30 or so and normally, I would be counting down the hours until I could go home and unwind. Instead of wishing the time would pass faster, I was wishing it would move slower, wishing I could cram more hours into the day. This is day 8 of the bootcamp and I’m usually there for about 12 hours a day, ride home and try to knock out another 2-3 hours when I get back to the hacker house. It reminded me a a really good quote/parable about time a manager of mine sent out a while back. I think it really speaks for itself so i’ll just end with that. (I tried to find the source of the quote, and the only name I could find attached was Marc Levy)
Imagine there is a bank account that credits your account each morning with $86,400. It carries over no balance from day to day. Every evening the bank deletes whatever part of the balance you failed to use during the day. What would you do? Draw out every cent, of course? Each of us has such a bank. It’s name is TIME. Every morning, it credits you with 86,400 seconds. Every night it writes off as lost, whatever of this you have failed to invest to a good purpose. It carries over no balance. It allows no over draft. Each day it opens a new account for you. Each night it burns the remains of the day. If you fail to use the day’s deposits, the loss is yours. There is no drawing against “tomorrow.” You must live in the present on today’s deposits. Invest it so as to get from it the utmost in health, happiness and success! The clock is running!! Make the most of today
To realise the value of ONE YEAR, ask a student who failed a grade.
To realise the value of ONE MONTH, ask a mother who has given birth to a premature baby.
To realise the value of ONE WEEK, ask the editor of a weekly newspaper.
To realise the value of ONE HOUR, ask the lovers who are waiting to meet.
To realise the value of ONE MINUTE, ask a person who just missed a train.
To realise the value of ONE SECOND, ask someone who just avoided an accident.
To realise the value of ONE MILLISECOND, ask the person who won a silver medal at the Olympics.
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| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object SystemController.GameState Menu.MenuManager
public class MenuManager
The MenuManager class is used primarily to navigate between different menu states. It also deals with saving and loading games. It also tells the program who the current logged in user is. The MenuManager inherits methods from GameState.
| Field Summary |
|---|
| Fields inherited from class SystemController.GameState |
|---|
gsm, menuManager |
| Constructor Summary | |
|---|---|
MenuManager(GameStateManager gsm)
Constructor for MenuManager |
| Method Summary | |
|---|---|
void |
associatePlayerUserName(java.lang.String username)
Associates the program with the current logged in user. |
void |
draw(java.awt.Graphics2D g)
Draws the current menu |
java.lang.String |
getPlayerUserName()
Gets the username of the current user |
void |
keyPressed(int k)
Pass the user input to the corresponding menu state at a given time. |
void |
keyReleased(int k)
|
void |
saveGame(java.lang.String fileName)
Saves the current progress of the game with the given file name. |
void |
setMenuState(MenuState state)
Sets the current MenuState. |
void |
setPreviousLeaderboardMenuState(MenuState state)
Allows the user to go back to the previous menu before the leader board menu. |
void |
setUpLoadedGame(GamePlayManager gamePlayManager)
Sets up the required saved game with the help of the gamePlayManager. |
void |
startGameFromSelectedStage(int stageSelected)
Starts the game from the stage selected by the user. |
| Methods inherited from class SystemController.GameState |
|---|
setGameStateManager |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public MenuManager(GameStateManager gsm)
gsm
- GameStateManager is passed, so that the menu manager can navigate between game states.| Method Detail |
|---|
public void setMenuState(MenuState state)
state
- Variable representing the menu state to be switched to is passed.public void saveGame(java.lang.String fileName)
fileName
- Name of the saved file is passed.public void setUpLoadedGame(GamePlayManager gamePlayManager)
gamePlayManager
- GamePlayManager is passed as it is required for the game to be loaded.public void startGameFromSelectedStage(int stageSelected)
stageSelected
- Passes the stage selected by the user to be loaded.public void associatePlayerUserName(java.lang.String username)
username
- Username is passed as it loads up the information regarding the user.public java.lang.String getPlayerUserName()
public void setPreviousLeaderboardMenuState(MenuState state)
state
- The state at which the user was at before loading the leader board is passed.public void draw(java.awt.Graphics2D g)
draw
in class GameState
g
- Graphics object corresponding to the JPanel where the game play state is renderedpublic void keyPressed(int k)
keyPressed
in class GameState
k
- User input is passed.public void keyReleased(int k)
keyReleased
in class GameState
|
|||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |


Info Label in Platform provides same functionalities that is present in @fudamental-ngx/core.
- Info Label is introduced as a angular component to have ability to work programatically with this component.
- Info Label offers accessibility support.


Architecture of ETDocGenerator
The architecture is rather simple; the weaveDocument
function, after checking
the arguments passed at the command line, create a DocumentWeaver instance.
The DocumentWeaver class is the one in charge
with generating the final document; we first indicates the template used,
via the loadTemplate:
method, then create a document using createDocumentUsingFile:
.
This method in fact simply checks that the input file has either an HTML or gsdoc extension, and call the correspoding methods (createDocumentUsingGSDocFile & createDocumentUsingHTMLFile).
Once this is done, the main program set the class mappings if present (still in the DocumentWeaver class), as well as the menu file, and finally ask DocumentWeaver to write the class.
Document creation & parsing
If the file is a gsdoc file, we create a NSXMLParser instance and a GSDocParserDelegate instance,
and parse it. After the parsing, we ask the delegate for a string representing the methods
(getMethods
method) and the header (getHeader
method), and then replace the corresponding
tags in the template with those strings. Classes Header, Function and Method are populated by GSDocParserDelegate.
If the file is an html document, the principle is the same, only we directly replace the corresponding tag in the template with the content of the html document.
Document writing
The writeDocument:
method of DocumentWeaver is very simple:
- (void) writeDocument: (NSString*) outputFile
{
[self insertMenu];
[self insertClassesLinks];
[self insertProjectClassesList];
[template writeToFile: outputFile atomically: YES];
}
We simply insert the menu in the template, then do a pass to add links to any classes mentioned in
the document, then do a final pass to replace the etoile-list-classes
tag, and then write the file.
HTML generation
While the parsing is a straightforward NSXMLParser delegate, the HTML generation uses the HtmlElement class.
The class is pretty simple, with elements having a name, a set of attributes, and a list of children.
One cool feature is that it uses reflectivity (see the methodSignatureForSelector
and forwardInvocation
methods)
to automatically call the appropriate method, which let
use write (in my opinion) html in an easier and more readable way:
H tdAuthors = TD;
for (int i=0; i<[authors count]; i++)
{
[tdAuthors with: [authors objectAtIndex: i] and: @" "];
}
H table = [TABLE with: [TR with: [TH with: @"Authors"] and: tdAuthors]
and: [TR with: [TH with: @"Declared in:"] and: [TD with: declared]]];
H, TD, TABLE, TR, TH are simple define, e.g:
#define H HtmlElement*
#define DIV [HtmlElement elementWithName: @"div"]
#define TABLE [HtmlElement elementWithName: @"table"]
Yes, it does remind me of the Seaside Canvas.


darkhistory.spec.transferfunction.TransFuncAtEnergy¶
-
class
darkhistory.spec.transferfunction.
TransFuncAtEnergy
(spec_arr, eng=None, in_eng=None, rs=None, spec_type='dNdE', dlnz=-1, rebin_eng=None)¶ Transfer function at a given injection energy.
Collection of Spectrum objects, each at different redshifts.
Parameters: - spec_arr : list of Spectrum
List of Spectrum to be stored together.
- eng : ndarray, optional
Energy abscissa.
- in_eng : ndarray, optional
Injection energy abscissa.
- rs : ndarray, optional
The redshift of the spectra.
- spec_type : {‘N’, ‘dNdE’}, optional
Type of data stored, ‘dNdE’ is the default.
- dlnz : float
The d ln(1+z) step for the transfer function.
- rebin_eng : ndarray, optional
New abscissa to rebin all of the Spectrum objects into.
Attributes: - in_eng : ndarray
Array of injection energies corresponding to each spectrum.
- eng : ndarray
Array of energy abscissa of each spectrum.
- rs : ndarray
Array of redshifts corresponding to each spectrum.
- spec_type : {‘N’, ‘dNdE’}
The type of values stored.
- dlnz : float
The d ln(1+z) step for the transfer function.
Methods
append
(spec)Appends a new Spectrum. at_rs
(new_rs[, interp_type, bounds_error, …])Interpolates the transfer function at a new redshift. integrate_each_spec
([weight])Sums over each individual spectrum with some weight. plot
(ax[, ind, step, indtype, fac])Plots the contained Spectrum objects. rebin
(out_eng)Re-bins all Spectrum objects according to a new abscissa. redshift
(rs_arr)Redshifts the stored spectra. sum_specs
([weight])Sums the spectrum in each energy bin, weighted by weight. switch_spec_type
([target])Switches between the type of values to be stored. totN
([bound_type, bound_arr])Returns the total number of particles in part of the spectra. toteng
([bound_type, bound_arr])Returns the total energy of particles in part of the spectra. -
__init__
(spec_arr, eng=None, in_eng=None, rs=None, spec_type='dNdE', dlnz=-1, rebin_eng=None)¶ Initialize self. See help(type(self)) for accurate signature.
Methods
__init__
(spec_arr[, eng, in_eng, rs, …])Initialize self. append
(spec)Appends a new Spectrum. at_rs
(new_rs[, interp_type, bounds_error, …])Interpolates the transfer function at a new redshift. integrate_each_spec
([weight])Sums over each individual spectrum with some weight. plot
(ax[, ind, step, indtype, fac])Plots the contained Spectrum objects. rebin
(out_eng)Re-bins all Spectrum objects according to a new abscissa. redshift
(rs_arr)Redshifts the stored spectra. sum_specs
([weight])Sums the spectrum in each energy bin, weighted by weight. switch_spec_type
([target])Switches between the type of values to be stored. totN
([bound_type, bound_arr])Returns the total number of particles in part of the spectra. toteng
([bound_type, bound_arr])Returns the total energy of particles in part of the spectra. Attributes
N_underflow
eng
eng_underflow
grid_vals
in_eng
rs
spec_type


Boogie Nights (R) **** (out of ****)
Aside from a fleeting glimpse of a sign reading "2nd Annual Adult Film Awards," the trailer for Paul Thomas Anderson's Boogie Nights does not offer a single clue of its porn-industry setting. This might seem misleading, but in skirting the provocative issue, the prudish preview ironically gives a more accurate sketch of what this fascinating, decade-spanning drama is truly about.
The adult film industry is front and center as the film opens in the San Fernando Valley in 1977. Anderson introduces the major players GoodFellas-style with a single shot winding through a crowded discotheque: producer/director Jack Horner (Burt Reynolds); stars Amber Waves (Julianne Moore), Buck Swope (Don Cheadle), Reed Rothchild (John C. Reilly), and Rollergirl (Heather Graham); production manager Little Bill (William H. Macy); and 17-year-old waiter Eddie Adams (Mark Wahlberg), who catches the attention of Jack. Jack sees superstar potential in the fresh-faced Eddie, and he is right--propelled by his large natural endowment and its ability to perform on camera, Eddie becomes an overnight porn sensation under the name of Dirk Diggler, sweeping the Adult Film Awards every year and creating a popular franchise character in secret agent Brock Landers.
Tragic gunshots ring in the 1980s, and at this point Anderson uncovers Boogie Nights's true nature. As Dirk's fortunes take a slide and advent of video changes the adult entertainment industry forever, the film reveals itself as not a mere portrait of the porn business but above all else a study of the people involved, the hopes and dreams within this makeshift family.  But a lot of the time, involvement in the business proves to be an insurmountable and humbling obstacle, a large skeleton in the closets of all involved. While the porno setting hooks the viewer and remains as a backdrop thoroughout, but it is the characters that carry the audience through.
Ironically, though, the focal character is one of the least interesting. Eddie/Dirk starts off as an ambitious, naive kid and becomes an ambitious, naive, and egotistical man. Wahlberg, who gives a very competent performance, conveys the naivete and eventual arrogance well, but he needs to work on his vulnerability; above all else, Eddie/Dirk is portrayed as a dreamer, but I could not connect with the distant Wahlberg.  Reynolds should be on his way to a real comeback with his confident, relaxed work as Jack, the idealistic porn auteur who strives for some legitimacy.
Most of all, Boogie Nights is a showcase for 26-year-old writer-director-producer Anderson, who proves himself a major talent to watch with this, his second feature (following the acclaimed Reno underworld saga Hard Eight). Not only does he effortlessly juggle a wide canvas of characters and storylines, coax fine performances from his entire cast, and employ some bravura camera work, he shows an amazing eye for detail. The tacky '70s hairstyles, costumes, and dance moves are so dead-on as to be almost painful to watch.  Adding even more authenticity is the great soundtrack filled with numerous '70s and '80s standards (though, curiously, the title tune is nowhere to be heard). Anderson's wry sense of humor shows through in the most subtle of ways; title cards stating dates are frequently posted onscreen, the last of which drolly reads "one last thing (long way down)".
Boogie Nights rounds out its swift 152-minute running time with a scene that is simple and quiet, yet deceptively so. With the mere sight and sound of one character talking to himself, Anderson sums up the joy and optimism of dreamers everywhere, as well as the sadness that come with the ultimate awareness of one's limits. "You're a star," goes the film's final line. Truer words cannot be spoken about Paul Thomas Anderson.
Michael Dequina<EMAIL_ADDRESS>|<EMAIL_ADDRESS><EMAIL_ADDRESS>|<EMAIL_ADDRESS>|<EMAIL_ADDRESS><EMAIL_ADDRESS>|<EMAIL_ADDRESS>Visit Mr. Brown's Movie Site at http://members.tripod.com/~MrBrown/ Personal Page: http://members.tripod.com/~MrBrown/home.html Michael Jordan Sites: http://members.tripod.com/~mj23/mj.html & http://www.geocities.com/Colosseum/Field/2302/
"I can accept failure. Everyone fails at something. But I can't accept not trying. It doesn't matter if you win as long as you give everything in you heart." --Michael Jordan
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Related links: index of all rec.arts.movies.reviews reviews


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The first website I analyzed was twitch.tv. Twitch is a livestream gaming site that was recently acquired by Amazon for $1 billion. Twitch's business model is to offer streamer-specific subscriptions to viewers which remove advertisements and give them custom emoticons and increased interaction with their favorite streamers. The streamers have a revenue-split agrement with the site. Popular streamers make well into 6-figure annual incomes and have tens of thousands of simultaneous viewers. Twitch also serves as a platform for multi-million dollar e-sports tournaments.
When you first arrive on a Twitch page, your eyes are immediately drawn to the 'featured stream' at the center of the screen. If it's not to your liking, you can easily scroll down for more streams or hit the browse button in the header. Twitch's website effectively combines graphical and textual elements to guide the viewer towards the content they are most likely to find entertaining. Twitch's design can be characterized as being crowded, interactive, responsive, speedy and in a state of constant change. In summary, Twitch's combination of entertaining livestream content with a design to effectively deliver that content has propelled it to be worth a billion dollars in only a couple years of existence.
The second website I analyzed was Hacker News. Hacker News began as a social news website catering to the alumni and employees of Y Combinator companies but has since branched out to include much of the software engineering community in general. On any given day I browse Hacker News I can see news stories and blog posts about the tech world that I'd probably never come across elsewhere and read the thoughts of commenters who possess an unparalleled level of technical knowledge. Hacker News has an intuitive, sparse, minimalist, text-based aesthetic, vaguely reminiscent of Craigslist in its simplicity.
Hacker News' content is primarily meant to inform and educate readers about the goings-on of the tech world. It also serves as a hiring platform for companies to acquire new talent and for developers to find work with both startups and established firms. There are also 'Ask HN' threads in which a poster asks the community for advice on a topic; oftentimes the questions are related to occupational issues, such as whether to take a new job, whether to part ways with a startup co-founder, how to negotiate with a venture capitalist, and so forth.
The final website I analyzed was Gmail, Google's web-based email service. Gmail has a simple, intuitive interface for reading and writing emails and its design scales well across a variety of devices. It loads quickly and is powered by Google's vast array of servers and engineers to ensure it has virtually no downtime. It's also free! Gmail makes money from scanning your emails for advertising keywords to target you with during your web browsing, so if privacy is a concern, Gmail is not a good email service to use.


We can directly access fundamental data for a given data field using qb.GetFundamental(Symbols, Selector, StartDate, EndDate)
. Symbols is the list of symbols that interest us. Selector is the name of the fundamental data field. If StartDate and EndDate are not specified, QuantBook will get all the fundamental data starting from January 1st, 1998. In order to access fundamental data, we will first need to subscribe to some symbols.
qb = QuantBook() aapl = qb.AddEquity("AAPL") amzn = qb.AddEquity("AMZN") goog = qb.AddEquity("GOOG") ibm = qb.AddEquity("IBM")
For some quarterly or yearly reported fundamentals like FinancialStatements
and OperationRatios
, we need to specify the period at the end of the fundamental selector name. For example, EarningReports.BasicAverageShares.TwelveMonths
gives us the one year value of the basic average shares, while EarningReports.BasicAverageShares.ThreeMonths
gives us the three month value,.
start_time = datetime(2017, 1, 4) # January 4th 2017 end_time = datetime.now() # Today's date # Get the PE ratio for all securities between given dates pe_history = qb.GetFundamental(qb.Securities.Keys, "ValuationRatios.PERatio", start_time, end_time)
# Get the AAPL yearly EBITDA since 1998 ebitda_history = qb.GetFundamental([aapl.Symbol, goog.Symbol], "FinancialStatements.IncomeStatement.EBITDA.TwelveMonths")
Notice that the values for GOOG are NaN for the years before GOOG's IPO.
For history calls on multiple symbols, we can access the data for a specific symbol.
# Get the EBITDA history for AAPL aapl_ebitda = ebitda_history['AAPL']
Since the history call returns daily resolution data and the twelve-month EBITDA is updated yearly, there will be duplicate data points in our dataframe. We can remove the duplicate points and look at the unique EBITDA entries.
# drop duplicate EBITDA Values aapl_ebitda_filtered = aapl_ebitda.drop_duplicates()
We can then calculate the year on year change of AAPL's EBITDA and assign the values to a new column change.
# Calculate YoY percent change of EBITDA aapl_ebitda_filtered['change'] = aapl_ebitda_filtered.pct_change()


--- layout: post title: 'PICNIC07: Panel, \"Up Close and Personal: Share your Life\"' date: 2007-09-26 00:00:00 categories: business digital-media interfaces-&-interaction mobile social software-development ---
PICNIC07: Panel, "Up Close and Personal: Share your Life"
First up, Jyri of Jaiku with his personal take; references Brad Fitzpatrick on "the Social Graph" (posh name for social software, it seems). People are connected by objects, and we need to represent these objects somehow: e.g. delicious turns bookmarks into social objects, used to connect me to other people who've bookmarked the same places. Flickr turned photos into social objects, Youtube videos. We're going into activity streams that show what your friends are doing now with objects. Subject-verb-object. Social software promotes what I should be aware of around myself, in a virtual social space. Will we see a "facerank" algorithm analogous to "pagerank", and delivering similar benefits.
Biz Stone on how Twitter started: Jack and he were working together, wanted to tie SMS and the web together and were intrigued about MSN status messages. Built a prototype in a couple of weeks, which was really fun to use. Twitter's being used for social activism: "censorship is the sincerest form of flattery". Example of an activist leaving micro-updates: dead easy, and even the lack of updates is in itself an indication of useful information.
Matt Biddulph of Dopplr: Dopplr users have so far travelled 89 million miles. There's serendipity in travel. (Dopplr==planned serendipity?). This gives some access to the things high-end travellers have: e.g. help from others.
Raymond Spanjard of HYves talks about how it put him in touch with transexuals seeking wigs :)
Jyri: "When your friends know what you're up to, you get magical powers".
Raymond: "the future of social networks is mobile".
Felix Petersen, Plazes: most people don't use social networks to hook up with strangers, but to keep track of existing friends in different contexts. There'll always be a need for one-to-one communication, but discovery and finding out what your best option is for social interaction precedes that.
Biz: putting APIs atop of SMS and the like is empowering for the third world.
Talking about how each panelists network interoperates with other networks: "why are you witholding happiness from each of us?"
Jyri: lots of services don't share social networks, because we haven't had the means to do it. It's not due to lack of will; we're getting to a phase of Web 2.0 where we're coming up with useful standards: OpenID, XMPP to push out information (instead of pulling RSS). Jaiku lets you pull your updates from other services by RSS.
Biz: we created an API early on. We see 20x traffic via API than via web site.
Raymond: blah blah integrate flickr photos blah.
Felix: flannels, I feel :)
Matt: Dopplr are specialist, some people say that it feels like a feature of a larger system. We say "yes, the Internet". Dopplr works best with other systems: "what did I twitter from SF"? Dopplr should appear amongst other services, you should never need to go to the site. We've launched Facebook, import social graph from twitter, and the ability to dump data out from the API, not just get it in. Dopplr is fun and interesting (and has no memory until 1.0), but may get mixed with other sites.
Moderator invites the panel to ask each other difficult questions.
Jyri: Biz, will Twitter ever support photos?
Biz: Not sure, we're not against the idea but love the simple 140-char format. Possibly but there's no timetable.
Matt: Jyri: do you regret starting out making mobile clients?
Jyri: no. Platform plays are easier as it avoids the problem of distribution. Will mobile be ready for rich applications, or will we be stuck with SMS? We'll probably have pockets of more advanced mobile devices (e.g. Nokias), operators have cut data rates, etc. But for global reach you're stuck with lowest common denominator like Twitter.
Jyri, Matt: how does doing a travel site square with the ecological impact of it?
Matt: serendipity allows people to optimise their trips. One problem with carbon offsetting programs out there at the moment is that they don't know where you've been - we do.
Moderator: one thing that struck we watching Twittervision is that it gives you the sense of everyone experiencing the same range of mundane and profound experiences and emotions.


--- layout: data_model title: ThreatActorSophisticationVocab-1.0 this_version: 1.2 ---
The ThreatActorSophisticationVocab is the default STIX vocabulary for expressing the level of sophistication of a threat actor.
| Item | Description |
|---|---|
| Innovator | Demonstrates sophisticated capability. An innovator has the ability to create and script unique programs and codes targeting virtually any form of technology. At this level, this actor has a deep knowledge of networks, operating systems, programming languages, firmware, and infrastructure topologies and will demonstrate operational security when conducting his activities. Innovators are largely responsible for the discovery of 0-day vulnerabilities and the development of new attack techniques. |
| Expert | Demonstrates advanced capability. An actor possessing expert capability has the ability to modify existing programs or codes but does not have the capability to script sophisticated programs from scratch. The expert has a working knowledge of networks, operating systems, and possibly even defensive techniques and will typically exhibit some operational security. |
| Practitioner | Has a demonstrated, albeit low, capability. A practitioner possesses low sophistication capability. He does not have the ability to identify or exploit known vulnerabilities without the use of automated tools. He is proficient in the basic uses of publicly available hacking tools, but is unable to write or alter such programs on his own. |
| Novice | Demonstrates a nascent capability. A novice has basic computer skills and likely requires the assistance of a Practitioner or higher to engage in hacking activity. He uses existing and frequently well known and easy-to-find techniques and programs or scripts to search for and exploit weaknesses in other computers on the Internet and lacks the ability to conduct his own reconnaissance and targeting research. |
| Aspirant | Demonstrates no capability. |
| Field Name | Type | Description |
|---|---|---|
| @vocab_nameoptional | string |
The vocab_name field specifies the name of the controlled vocabulary. |
| @vocab_referenceoptional | anyURI |
The vocab_reference field specifies the URI to the location of where the controlled vocabulary is defined, e.g., in an externally located XML schema file. |


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{{cards_count}} of the best resources for Machine Learning
Contribute


Lokarpan offers solution to empower communities living in stress.
Lokarpan was established by H.V. Singh in 1996 to commemorate a vision to enbale poor, rural communities to improve this social and economic conditions through participatory projects in health, education, income generation through training and convergence, and veterinery care.


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During its tenure, the Secure Systems Laboratory has developed, nurtured, and deployed a number of technologies, which have been sunsetted. These projects addressed password protection, secure experimental testbeds, the factors that influence developer perceptions, as well as a vehicle to securely share (and acquire) donated computing resources from desktops, laptops, or smartphones that in some ways anticipated the growth of cloud computing. Though these technologies are no longer being actively developed, the resources generated by these projects can still largely be accessed. You can learn more about these retired technologies by clicking here.


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Install the Java runtime (JRE 7 or newer) and unzip. For example on Debian, Ubuntu:
sudo apt-get install openjdk-7-jre-headless unzip
Download and extract the release archive:
wget http://mireka.googlecode.com/files/mireka-4.0.zip unzip mireka-4.0.zip cd mireka-4.0
Make the start script executable:
chmod +x bin/start.sh
The default configuration opens the usual mail related TCP ports, all below 1024, and that is only allowed to root. Choose from the following three options, ordered by their difficulty.
sudo ./bin/start.sh
Update the configuration to use port numbers greater than 1024:
sed -i '/setup(PopServer/ a\\tport: 1110,' conf/pop.js sed -i '/setup(SMTPServer/ a\\tport: 1025,' conf/mx.js sed -i '/setup(SubmissionServer/ a\\tport: 1587,' conf/submission/submission.js
Now you can run it as a non-root user:
./bin/start.sh
Install authbind. For example on Debian, Ubuntu:
sudo apt-get install authbind
Configure authbind to enable mail ports for you:
echo -e "<IP_ADDRESS>/0:25,25\n<IP_ADDRESS>/0:110,110\n<IP_ADDRESS>/0:587,587" | sudo tee /etc/authbind/byuid/$UID /etc/authbind/byuid/\!$UID > /dev/null
Modify start.sh to use authbind:
sed -i 's/^$JAVA_CMD/authbind &/' bin/start.sh
Now you can run it as a non-root user and still use standard ports:
./bin/start.sh
You will see log messages showing that Mireka listens on port 25 (SMTP), 110 (POP), 587 (Message Submission) or on the ports you configured.
Press Ctrl+C to shutdown Mireka.


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Please reach me with the below contact information
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Data Science Institute, University of Delaware Tower at STAR, Suite 614, 100 Discovery Blvd, Newark, DE 19713
Email<EMAIL_ADDRESS><EMAIL_ADDRESS>Linkedin : www.linkedin.com/in/serdarkuyuk/
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CS16, Summer 2018
Course Information
Labs:
| num | ready? | description | assigned | due |
|---|---|---|---|---|
| lab00 | true | Getting started | Wed 06/27 09:00AM | Sun 07/01 11:59PM |
| lab01 | true | Crunching numbers: Loops and Functions | Tue 07/03 09:00AM | Sun 07/08 11:59PM |
| num | ready? | description | assigned | due |
|---|---|---|---|---|
| lab00 | true | Getting started | Wed 06/27 09:00AM | Sun 07/01 11:59PM |
| lab01 | true | Crunching numbers: Loops and Functions | Tue 07/03 09:00AM | Sun 07/08 11:59PM |


Name :
Michel Capitanio
Date of Birth :
28 August 1986
Nationality :
Italy
Passionate about everything IT, with a special interest for cloud services and virtualization: IaaS, Disaster Recovery, DC Migration, Storage and Networking. Always in search of new, groundbreaking technologies to work with.
I enjoy being a conjunction point between my employer and our customers, and to be an active part of the growth of the company and its technologies. I like to talk about the technologies I use and know with customers, colleagues and peers.
I enjoy working with people; I've experience in hiring and team lead, making key decisions in line with business priorities.
Capgemini
2023 - present
As Cloud architect, my focus is on designing and implementing cloud infrastructures that serve the needs of businesses.
My work involves collaborating with teams of IT professionals to identify and address the needs of clients, and then leveraging best practices and cutting-edge technologies to build cloud environments that are secure, scalable, and reliable.
Claranet
2020 - 2023
Claranet provides network, hosting and managed application services in many European countries.
As Cloud Architect, I designed cloud architectures based on Infrastructure as Code and automation principles.
I designed and engineered reliable and resilient infrastructures running on AWS platform.
Evogy
2018 - 2020
Evogy is a startup which provides digital services for the energy management and energy efficiency, through a cloud native platform and machine learning algorithms.
As Solutions Architect, I overseed the product development and acted as the bridge between the business and technology development.
I designed, implemented and maintained a robust and scalable micro-services infrastructure on top of AWS platform.
NearIT
2016 - 2018
Co-founded and operated startup which builds a proximity marketing and context-aware platform.
Set the vision and led the development and operations of the product, while at the same time built up a new organization, hired and managed senior and junior team members, oversaw and evaluated service providers, and ensuring coordination and collaboration across all teams.
MindTek
2015 to 2017
MindTek is a startup developing mobile apps for Android & iOS.
As CTO of MindTek, I forged technology vision in alignment with business directives, developed back-ends in support of the apps, oversaw engineering, QA, IT, product management, recruiting and support operations. I was able to wear just about every hat imaginable at the company and I enjoyed having the opportunity to do it all.
Gioca
2009 to 2015
Web agency which provided the small and medium businesses with web-sites development services and SEO services.
As Web Developer, I designed, developed and managed dozens of PHP web sites, including sites receiving hundred thousands of daily hits.
I built and managed server infrastructure that served more than 1000 websites and web-applications.


The email on the left is the original message. The email on the right is the same email after running
the get_current_message() method. The goal of this method is to eliminate forwarded messages
and other previous messages still existing in the email body so that feature extraction only takes place
on the current message. Please determine whether or not the email was correctly rendered by this
method. If there is no previous message, then the email should be the same on both sides—that would
be correct. However, if the email is a forward or reply, the original message should be removed from the
email body on the right.


I have a tendency of really latching onto very simple ideas. Typically these ideas don’t require complex engineering to make them happen. This is not to say the engineering is not important, but more so that it is some variation of engineering feats that have been done before. The reason I tend to like these over more complex engineering that really makes something better is that making something better is typically a marginal improvement. When it’s a marginal improvement it’s a lot harder to sell.
With marginal improvements you have to:
- Convince the customer it’s not good enough today
- Convince the customer that you’re better
- Convince the customer you’re worth the headache of changing
While a lot of companies focus solely on taking an existing problem and solving it better than someone else has, I have my doubts about how reproducible this model is. If I’m a large company with lots of resources I’m going to keep iterating and improving myself, which means a smaller company really has to have some magic bullet that will displace me.
In contrast if I address a problem that hasn’t been solved my life instantly becomes a lot easier. I no longer have an argument of something not being good enough today, it becomes a question of value and how much its worth to solve the problem. Haggling over price is a conversation I’d rather have than trying to justify value and convince a customer they’ve been wrong in their choice for so many years.
Over the coming days I’m going to be posting a few of these examples/ideas and why I like them. Many of them are still being thought through, and while as I sort them out, I’m generally happy to publish high points about them. The even bigger key here is that success is typically in the execution and less so in the idea, though even then I’d prefer to execute on something that has less battles than something that from the onset has more. By doing something that is being done today you get no advantages of penetrating the market.


| 386 | (A) | Bot aye to luke one the lande tiłł ałłe laughte were |
| 390 | (C) | Meste þey looke to þe lane . tyłł it lawȝte were |
| 391 | (D) | Moost þei lokyd to þe lande tul hit laugħt were |
| (E) | ---- no text ---- | |
| (Ex) | ---- no text ---- | |
| 400 | (L) | bot ay lokande on þe londe tille þat al lauȝte were |
| 374 | (P) | Bot ay loked onn þe londe to ałł laght wer |
| 384 | (U) | Most thei loked therto / til it laugħt were |
| (V) | ---- no text ---- |


- (tk/bindtags window ?tagList?)
When a binding is created with the bind command, it is associated either with a particular widget, a class name such as Button , the keyword all , or any other string. All of these forms are called binding tags. Each window contains a list of binding tags that determine how events are processed for the window. When an event occurs in a window, it is applied to each of the window's tags in order: for each tag, the most specific binding that matches the given tag and event is executed. See the tk/bind command for more information on the matching process.
By default, each window has four binding tags consisting of the name of the window, the window's class name, the name of the window's nearest toplevel ancestor, and all , in that order. Toplevel windows have only three tags by default, since the toplevel name is the same as that of the window. The tk/bindtags command allows the binding tags for a window to be read and modified.
If tk/bindtags is invoked with only one argument, then the current set of binding tags for window is returned as a list. If the tagList argument is specified to tk/bindtags, then it must be a proper list; the tags for window are changed to the elements of the list. The elements of tagList may be arbitrary strings; however, any tag starting with a dot is treated as the name of a window; if no window by that name exists at the time an event is processed, then the tag is ignored for that event. The order of the elements in tagList determines the order in which binding scripts are executed in response to events. For example, the command
(tk/bindtags #<widget> `(all ,tk Button ,#<widget>))
reverses the order in which binding scripts will be evaluated for a #<widget> which is child of tk so that all bindings are invoked first, following by bindings for #<widget> 's toplevel (tk ), followed by class bindings, followed by bindings for #<widget> . If tagList is an () then the binding tags for window are returned to the default state described above.
The tk/bindtags command may be used to introduce arbitrary additional binding tags for a window, or to remove standard tags. For example, the command
(tk/bindtags #<widget> `(,#<widget> TrickyButton ,tk all)
replaces the Button tag for #<widget> with TrickyButton . This means that the default widget bindings for buttons, which are associated with the Button tag, will no longer apply to #<widget>, but any bindings associated with TrickyButton (perhaps some new button behavior) will apply.
Corresponding Tcl/Tk command:
bindtags ...
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Admin logged in as: {{email}}
Current user balance: {{profile.given_name}}'s balance is ${{profile.my_balance}}.
COBOL Score: {{profile.cobol_quiz_score}}
Please select a learner


The AwtyBots Robotics Enrichment Program provides students the opportunity to engage in a more STEM-focused environment, testing and challenging their capabilities as well as garnering their interest in the fields of technology and engineering. This program will not just teach the fundamentals of robotics and programming, but also problem-solving, critical thinking, and teambuilding skills.
Every summer the AwtyBots team will have a week-long summer camp at a select partnering school in which students will learn the basics of a robot and how it functions. Each day will build on the day prior and will test the participant's capabilities to adapt to multiple circumstances.
As the program is close to half a day, breakfast and lunch will be provided to all participants. The program is also led by the Awtybots members and will be completely Awtybot-student-led.


Y.zui.placeholder Class
A static object to access zui placeholder properties and methods
Item Index
Methods
- install static
- installDelegate static
- uninstall static
- uninstallDelegate static
Properties
- clsBlur static
- isNative static
- txtInstalled static
Methods
install
(
Array
static
-
elements
use this method to install placeholder on nodes
Parameters:
-
elements
NodeList | | Node | | HTMLElement | | cssStringOptional. The elements to install placeholder support
Returns:
Array:
An array contains [TotalElements, InstalledElements] when no native placeholder support. Return undefined when the browser suppports placeholder natively. Return [0, 0] when can not find nodes
installDelegate
(
Array
static
-
element
-
elements
use this method to install placeholder on node with event delegate
Parameters:
-
element
Node | | HTMLElement | | cssStringOptional. The parent element to install placeholder support
-
elements
NodeList | | Node | | HTMLElement | | cssStringOptional. The child elements to handle placeholder
Returns:
Array:
An array contains [1, InstalledElements] when no native placeholder support. Return undefined when the browser suppports placeholder natively. Return [0, 0] when can not find parent node. Return [-1, -1] when 'node-event-delegate' not loaded.
uninstall
(
Array
static
-
elements
use this method to uninstall placeholder on nodes
Parameters:
-
elements
NodeList | | Node | | HTMLElement | | cssStringOptional. The elements to remove placeholder support
Returns:
Array:
An array contains [TotalElements, UninstalledElements] when no native placeholder support. Return undefined when the browser suppports placeholder natively. Return [0, 0] when can not find nodes
uninstallDelegate
(
Array
static
-
element
-
elements
use this method to uninstall placeholder on node with event delegate
Parameters:
-
element
Node | | HTMLElement | | cssStringOptional. The parent element to uninstall placeholder support
-
elements
NodeList | | Node | | HTMLElement | | cssStringOptional. The child elements to unhandle placeholder
Returns:
Array:
An array contains [1, UninstalledElements] when no native placeholder support. Return undefined when the browser suppports placeholder natively. Return [0, 0] when can not find parent node. Return [-1, -1] when 'node-event-delegate' not loaded.


After a regexp is executed the RegExp constructor object has properties $1…$9 which are assigned the values of the first 9 match groups from the previous regexp.
$1
$9
See also http://wiki.whatwg.org/wiki/Web_ECMAScript#RegExp


5 Door, All Wheel Drive, 90kw
£29,900
A simple but elegant finishing trim for your Arium.
Sleek and aerodynamic tweaks to stand above the crowd.
Total piece of mind for the perfect Arium motoring experience.
Stylish privacy and protection from the sun's rays.


The main advantage of publishing wine data using the E-Baco ontology is to give semantic meaning to data. This means that information about wines will be comprehensible for software agents, and this open the door to a lot of new applications, some of them are presented below:
- Linked data. Wine databases that use the E-Baco ontology can be linked in an global web database through which it can access world wide distributed data about wines. Wine data can even be linked with other related semantic data out of the oenology domain, and be integrated in resources like DBpedia, the semantic version of Wikipedia.
- Data sharing. An application derived from linked data is information sharing. Agents that use the E-Baco ontology (wineries, shops, restaurants, magazines, sommeliers, etc.) will have instant access to the information published by the others with no ambiguity. For instance, an ecommerce store can publish in their website information about wines from a winery, without having its own database. In this way, every time the winery updated the information about their wines, the changes will be reflected automatically in the website store.
- Semantic search. One of the most important applications of Semantic Web is the possibility of making semantic queries that go beyond syntactic criteria and include semantic relationships between concepts. For instance, we can query the Semantic Web for crianza red wines from Spain elaborated with more than two grape varieties and an alcohol content lower than 14%, and the search engine will return wines with different aging times according to the meaning of “crianza” in every appellation. The queries have to be formulated in a semantic query language like SPARQL throw RDF triplets servers like the Apache Jena TDB and OpenLink Virtuoso, or using semantic search engines like Swoogle, Glimmer.
- Web services. Other application derived from linked data is the development of specialized web services. These services can use the ontology to browse the distributed data sources in the Semantic Web to perform specific tasks like comparing or recommending wines.
- Semantic reasoning. The properties and relations defined by the ontology allow logical inferences that can derive new knowledge or detect incoherences in the knowledge base. For instance, using the ontology a reasoner can detect an error of classifying a wine as “crianza” when it had less than three months aging. There exists specialized reasoners for the Semantic Web like HermiT, Fact++ or Pellet.
- Database integration. Integrate two or more databases of a common domain is a difficult task because they use different relational schemas. If the databases use the E-Baco ontology to annotate their schemas, the fusion is very easy.
- Ad hoc applications. Finally it’s possible to develop ad hoc applications that uses the ontology to perform concrete tasks like, for example, analyzing the winemaking process of wines and proposing variations to improve wines.


{% extends "base_card.html" %} {% set wide = true %} {% block body %}
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If this message persists, please contact the SRCF sysadmins for assistance. Please let us know when and what you were trying to do, and include the information below.


LookAtTheStuffIBought.com
Hello Authenticated User!
Use this website to show your friends the stuff you bought on other websites.
Click button below to authorize this application to get your Portfolio data from Okta Demo App.
Use this website to show your friends the stuff you bought on other websites.
Click button below to authorize this application to get your Portfolio data from Okta Demo App.


Problem Description
In order to understand early civilizations, archaeologists often study texts written in ancient languages. One such language, used in Egypt more than 3000 years ago, is based on characters called hieroglyphs. Figure C.1 shows six
hieroglyphs and their names. In this problem, you will write a program to recognize these six characters.
hieroglyphs and their names. In this problem, you will write a program to recognize these six characters.
Input
The input consists of several test cases, each of which describes an image containing one or more hieroglyphs chosen from among those shown in Figure C.1. The image is given in the form of a series of horizontal scan lines consisting
of black pixels (represented by 1) and white pixels (represented by 0). In the input data, each scan line is encoded in hexadecimal notation. For example, the sequence of eight pixels 10011100 (one black pixel, followed by two white pixels, and so on) would
be represented in hexadecimal notation as 9c. Only digits and lowercase letters a through f are used in the hexadecimal encoding. The first line of each test case contains two integers, H and W: H (0 < H <= 200) is the number of scan lines in the image. W
(0 < W <= 50) is the number of hexadecimal characters in each line. The next H lines contain the hexadecimal characters of the image, working from top to bottom. Input images conform to the following rules:
of black pixels (represented by 1) and white pixels (represented by 0). In the input data, each scan line is encoded in hexadecimal notation. For example, the sequence of eight pixels 10011100 (one black pixel, followed by two white pixels, and so on) would
be represented in hexadecimal notation as 9c. Only digits and lowercase letters a through f are used in the hexadecimal encoding. The first line of each test case contains two integers, H and W: H (0 < H <= 200) is the number of scan lines in the image. W
(0 < W <= 50) is the number of hexadecimal characters in each line. The next H lines contain the hexadecimal characters of the image, working from top to bottom. Input images conform to the following rules:
- The image contains only hieroglyphs shown in Figure C.1.
- Each image contains at least one valid hieroglyph.
- Each black pixel in the image is part of a valid hieroglyph.
- Each hieroglyph consists of a connected set of black pixels and each black pixel has at least one other black pixel on its top, bottom, left, or right side.
- The hieroglyphs do not touch and no hieroglyph is inside another hieroglyph.
- Two black pixels that touch diagonally will always have a common touching black pixel.
- The hieroglyphs may be distorted but each has a shape that is topologically equivalent to one of the symbols in Figure C.11.
The last test case is followed by a line containing two zeros.
1Two figures are topologically equivalent if each can be transformed into the other by stretching without tearing.
Output
For each test case, display its case number followed by a string containing one character for each hieroglyph recognized in the image, using the following code:
Ankh: A
Wedjat: J
Djed: D
Scarab: S
Was: W
Akhet: K
In each output string, print the codes in alphabetic order. Follow the format of the sample output.
The sample input contains descriptions of test cases shown in Figures C.2 and C.3. Due to space constraints not all of the sample input can be shown on this page.
Sample Input
100 25<PHONE_NUMBER>000000000000000<PHONE_NUMBER>000000000000000 ...(50 lines omitted)... 00001fe0000000000007c0000 00003fe0000000000007c0000 ...(44 lines omitted)...<PHONE_NUMBER>000000000000000<PHONE_NUMBER>000000000000000 150 38<PHONE_NUMBER>0000000000000000000000000000<PHONE_NUMBER>0000000000000000000000000000 ...(75 lines omitted)...<PHONE_NUMBER>fffffffffffffffff00000000000<PHONE_NUMBER>fffffffffffffffff00000000000 ...(69 lines omitted)...<PHONE_NUMBER>0000000000000000000000000000<PHONE_NUMBER>0000000000000000000000000000 0 0
Sample Output
Case 1: AKW Case 2: AAAAA
Source
思路：根据圈的数量来识别。
#include <cstdio> #include <algorithm> using namespace std; char ts[201],mes[6]={'W','A','K','J','S','D'},ans[10]; bool vis[205][205]; int n,m,mp[205][205],nxt[4][2]={{1,0},{0,1},{-1,0},{0,-1}},num; void dfs(int x,int y) { int i; for(i=0;i<4;i++) { x+=nxt[i][0]; y+=nxt[i][1]; if(x>=0 && x<n && y>=0 && y<m && !vis[x][y] && !mp[x][y]) { vis[x][y]=1; dfs(x,y); } x-=nxt[i][0]; y-=nxt[i][1]; } } void dfs3(int x,int y) { int i; for(i=0;i<4;i++) { x+=nxt[i][0]; y+=nxt[i][1]; if(x>=0 && x<n && y>=0 && y<m && !vis[x][y] && !mp[x][y]) { vis[x][y]=1; dfs3(x,y); } x-=nxt[i][0]; y-=nxt[i][1]; } } void dfs2(int x,int y) { int i; for(i=0;i<4;i++) { x+=nxt[i][0]; y+=nxt[i][1]; if(x>=0 && x<n && y>=0 && y<m && !vis[x][y]) { if(mp[x][y]) { vis[x][y]=1; dfs2(x,y); } else { vis[x][y]=1; num++; dfs3(x,y); } } x-=nxt[i][0]; y-=nxt[i][1]; } } int main() { int i,j,t,casenum=1,cnt; while(~scanf("%d%d",&n,&m) && n) { n++; m*=4; m++; for(i=0;i<=n;i++) for(j=0;j<=m;j++) vis[i][j]=0; for(i=1;i<n;i++) { gets(ts); if(!ts[0]) { i--; continue; } for(j=0;ts[j];j++) { if(ts[j]>='a' && ts[j]<='f') { t=ts[j]-'a'+10; mp[i][j*4+1]=t/8; mp[i][j*4+2]=t%8/4; mp[i][j*4+3]=t%4/2; mp[i][j*4+4]=t%2/1; } else { t=ts[j]-'0'; mp[i][j*4+1]=t/8; mp[i][j*4+2]=t%8/4; mp[i][j*4+3]=t%4/2; mp[i][j*4+4]=t%2/1; } } } for(i=0;i<=m;i++) mp[n][i]=0; for(i=0;i<=n;i++) mp[i][m]=0; n++; m++; vis[0][0]=1; dfs(0,0); cnt=0; for(i=0;i<n;i++) { for(j=0;j<m;j++) { if(mp[i][j] && !vis[i][j]) { num=0; vis[i][j]=1; dfs2(i,j); ans[cnt++]=mes[num]; } } } sort(ans,ans+cnt); ans[cnt]=0; printf("Case %d: ",casenum++); puts(ans); } }
版权声明：本文为博主原创文章，未经博主允许不得转载。
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还能跳房顶上开的~当时发现真是吓尿
还能跳房顶上开的~当时发现真是吓尿
还能跳房顶上开的~当时发现真是吓尿
还能跳房顶上开的~当时发现真是吓尿
还能跳房顶上开的~当时发现真是吓尿
还能跳房顶上开的~当时发现真是吓尿
还能跳房顶上开的~当时发现真是吓尿
还能跳房顶上开的~当时发现真是吓尿
感觉第二种方法其实也不是很好，不过的确要比第一种方法要好一点。
有的，已更新
为什么暴力求解方法循环到sqrt(n) 就可以了呢
能告诉我为什么对于每一个m，cnt的值不用更新吗?这儿我想不通啊，谢谢
老实说，这种方法就是穷举，复杂度是2^n，之所以能够AC是应为题目的测试数据有问题，要么数据量很小，要么能够得到k == t，否则即使n = 30，也要很久才能得出结果，本人亲测
妈呀！这个Dijkstra模板好长OwQ！
不太懂呀，乡亲们。原理知道代码不会
这道题目重复了，删掉一个吧
其实国内大部分公司对算法都不够重视。特别是中小型公司老板根本都不懂技术，也不懂什么是算法，从而也不要求程序员懂什么算法，做程序从来不考虑性能问题，只要页面能显示出来就是好程序，这是国内的现状，很无奈。
这个应该是最朴素的KMP实现
简洁的代码
较好的写法是 start+(end-start)/2


Ensure that encryption is used to avoid sensitive data from being stored as plaintext in application configuration files or elsewhere.
Sensitive application data can be compromised if stored in plaintext. Unauthorized access by users or attackers can lead to information disclosure.
In applications that accept or process user-sensitive or private data, it is essential to ensure that such important data is not stored in plaintext form, so that no one except the owning user has access to the data. In order to prevent disclosure of such sensitive data, verify the following:
Identify sensitive information. Sensitive data is any information that is kept secret and should be disclosed only to authorized parties. Common examples of sensitive data include, but are not limited to:
Some industries, such as health care and banking, have regulatory standards that define sensitive information. Use regulatory requirements as they apply to your application to identify sensitive data. Sensitive data can be defined as follows:
Verify that sensitive data is stored securely. Ensure that your application stores sensitive data using either hashing or encryption:
Hashing: Hashing is a one-way mechanism for storing sensitive data in a non-retrievable way. If your application uses hashing as means for storing sensitive data, verify that the following pieces are in place:
Encryption: Encryption is a mechanism for storing sensitive data in a retrievable way. If your application uses encryption as means for storing sensitive data, verify that the following pieces are in place:
Use the following steps when storing sensitive data:
Identify sensitive information. Sensitive data is any information that is kept secret and should be disclosed only to authorized parties. Common examples of sensitive data include, but are not limited to, names of customers, government issued ID numbers, credit card and other financial information, passwords and private keys. Some industries, such as health care and banking, have regulatory standards that define sensitive information. Use regulatory requirements, as they apply to your application, to identify sensitive data. Sensitive data can be defined as follows:
Choose an appropriate protection mechanism. Choosing the appropriate protection mechanism depends on the purpose and use of the sensitive data.
Hashing the application data: Use hashing if the application data will be used only for comparison purposes. If hashing is used, choose a longer salt: 16 or more bits. In the event that the produced hash is compromised, longer salts make it more difficult for an attacker to gain access to the sensitive data. If your application uses randomly generated salt, make sure that your application encrypts the random salt and stores it into a configuration file. Always use SecureRandom and not Random to generate the salt. Example of using SecureRandom to generate a random salt:
public static byte[] generateSalt()
throws NoSuchAlgorithmException
{
// Note that salt is declared as private static byte[] and is
// initialized to null.
if (salt == null)
{
SecureRandom srand = SecureRandom.getInstance("SHA1PRNG");
salt = new byte[4];
srand.nextBytes(salt);
}
return salt;
}
Choosing a strong hashing algorithm is also important. Stronger algorithms prevent multiple unique pieces of data from producing identical hash values. The current recommendation is to use SHA-512 or stronger.
public String hashCredentials(char[] pass, byte[] salt)
throws GeneralSecurityException, IOException
{
MessageDigest md;
byte[] tempPass;
byte[] digest;
md = MessageDigest.getInstance("SHA-512");
//Convert char[] to byte[]
tempPass = new byte[pass.length];
for (int i = 0; i < pass.length; i++)
{
tempPass[i] = (byte)pass[i];
}
md.update(tempPass);
md.update(salt);
digest = md.digest();
md.reset();
//Clean tempPass
for (int i = 0; i < tempPass.length; i++)
{
tempPass[i] = 0;
}
return new String(digest);
}
Encrypting the application data. Use encryption if the application data will be retrieved at a later stage.
Use symmetric encryption if and only if your application is the only entity that will access the encrypted data. Use a key size of 265-bit or higher and AES for symmetric encryption.
Use public/private key encryption if the data will be accessed by two or more parties. Use a key size of 2048-bit or higher and RSA for public/private key encryption. Public/private key encryption allows your application to share sensitive data with multiple entities without disclosing its own encryption key.
// Because the following code generates a new encryption key,
// make sure to store it into the application's keystore.
// Follow the Store Encryption Keys Using Protected Storage APIs guideline.
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(256);
SecretKey skey = kgen.generateKey();
// Set up cipherCipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.ENCRYPT_MODE, skey);
// Note that sensitiveData is of type byte[] and contains
// data that is sensitive in nature
byte[] encrypted = cipher.doFinal(sensitiveData);
Apply the appropriate protection mechanism. Evaluate the code and determine the places where sensitive data is transmitted. Apply the established protection mechanism at each location.
try
{
// The application produces a hash based on the sensitive data
userEmail = MyApp.getEmailForUser(user);
passDigest = encryptCredentials(userEmail, pass, salt);
}
catch (GeneralSecurityException gse)
{
// Add the appropriate logging and exception handling mechanisms
return false;}catch (IOException ioe)
{
// Add the appropriate logging and exception handling mechanisms
return false;
}
// The application stores the hashed sensitive data into the database
Connection cn = MyApp.getDBConnection();
PreparedStatement st = cn.prepareStatement("select login_attempts from myappUsers"
+ " where user = ? and pass = ?;");
st.setString(1, user);
st.setBytes(2, passDigest);
ResultSet rs = st.executeQuery();
The following code retrieves database credentials from a configuration file. Unfortunately, the credentials are not encrypted; therefore, anyone with access to the configuration file can retrieve the credentials and access the database on behalf of the application.
public Properties loadDatabaseCredentials()
throws IOException
{
Properties prop = new Properties();
InputStream propStream = new FileInputStream("../../config/testProp.config");
prop.load(propStream);
propStream.close();
return prop;
}
The following code retrieves database credentials from a configuration file. Because the credentials are encrypted, the application decrypts them in real time which protects the credentials' confidentiality in case the local access to the configuration file is not properly secured.
public Properties loadDatabaseCredentials()
throws GeneralSecurityException, IOException
{
// Set the decryption mechanism
byte[] rawKey = getEncryptionKey();
SecretKeySpec skeySpec = new SecretKeySpec(rawKey, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
// Decrypt config file
File configFile = new File("../../config/testProp.config");
byte[] tempBuff = new byte[(int)configFile.length()];
FileInputStream fileStream = new FileInputStream(configFile);
fileStream.read(tempBuff, 0, tempBuff.length);
InputStream propStream = new ByteArrayInputStream(cipher.doFinal(tempBuff));
prop.load(propStream);
propStream.close();
fileStream.close();
return prop;
}


---
layout: post
title: 'Soccer: Acme (0) vs. Nerds (11), Humiliation!'
categories: []
tags: []
status: publish
type: post
published: true
meta:
_original_post_id: ''
_original_import_author: John Duprey
author:
---
-
-
jduprey
- February 18th, 2005
The Nerds destroyed us tonight. They had skillz. They were fast, and their passing was good. I never had a clear shot on goal. I had chances, but choked. ("HUMILIATION!" - Quake Arena style.)


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You take a design given to you (or think of a page you want to make) and divide it in a grid with vertical and horizontal lines where possible, so that elements on your page fit into the boxes created by the lines. Setting this grid up is part CSS and part HTML. CSS will define what a row and column look like with regards to their width (in percentages). HTML will refer to these colums and build up the structure and place the content in them. The advantage of grid based design as opposed to using plain HTML to do this is that the page will be more flexible in the layout, both in styling and in responsiveness.
People are using devices with all sorts of different screens and resolutions. It is important to give all these users a good experience so your page needs to function well for people who use large high resolution screens and for those who are on old smartphones with a very limited resolution. A responsive webpage wil scale the page to fit the screen and resolution of all these different users.
The semantic structure of a page is how the tags in a page are laid out and how they are named. It is important to have parents elements and then indented child elements underneath it. Semantic naming of the elements means that you describe what the element is, without going into how it works. So don't use a lot of 'div' elements when a simple 'h1' would do the job. When you do use 'div', give it a class that describes what it does, for example 'col-1' or 'footer'.
The introduction to bootstrap was very interesting. I have heard the term before without having any idea of what it was. I like that we first get to build a page without bootstrap so we get some HTML/CSS experience starting a page from scratch before we use already set up frameworks to build our page on top. It will be interesting to learn more about how bootstrap and a customised CSS work together to get the design you want.
You take a design given to you (or think of a page you want to make) and divide it in a grid with vertical and horizontal lines where possible, so that elements on your page fit into the boxes created by the lines. Setting this grid up is part CSS and part HTML. CSS will define what a row and column look like with regards to their width (in percentages). HTML will refer to these colums and build up the structure and place the content in them. The advantage of grid based design as opposed to using plain HTML to do this is that the page will be more flexible in the layout, both in styling and in responsiveness.
People are using devices with all sorts of different screens and resolutions. It is important to give all these users a good experience so your page needs to function well for people who use large high resolution screens and for those who are on old smartphones with a very limited resolution. A responsive webpage wil scale the page to fit the screen and resolution of all these different users.
The semantic structure of a page is how the tags in a page are laid out and how they are named. It is important to have parents elements and then indented child elements underneath it. Semantic naming of the elements means that you describe what the element is, without going into how it works. So don't use a lot of 'div' elements when a simple 'h1' would do the job. When you do use 'div', give it a class that describes what it does, for example 'col-1' or 'footer'.
The introduction to bootstrap was very interesting. I have heard the term before without having any idea of what it was. I like that we first get to build a page without bootstrap so we get some HTML/CSS experience starting a page from scratch before we use already set up frameworks to build our page on top. It will be interesting to learn more about how bootstrap and a customised CSS work together to get the design you want.


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Emmanuel is a Junior Developer and a Technology enthusiastic. He likes to cite himself to a third person. He is a US Navy Veteran with Backgrounds in Accounting and Supply Chain Management. His passion and love for computers and Technology got him to start learning how to code. He is Alumni from one of the best coding bootcamp in the country, where he had intensive hands on training in coding. He likes learning new things all the time and loves it. He plays soccer by Default, Pool Table by passion and Basketball for Hobby.


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You won’t find a better mechanic in North Queensland. Call Gordon for a quote now: 0474 750 744 Alternatively fill in your details on the right including:


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My name is Sheila and I'm a wizard... okay fine, that's a lie... I'm just awesome.


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LFC has been nurturing, defining and leading the IT training market. As a leading Global Talent Development Corporation, LFC has been ranked among the Top 20 IT Training communities in the country.
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We place great emphasis on selecting the right people and invest in their capability building and holistic development. This is a reflection of the fact that at LFC our people are our most valued asset.  At LFC you can build yourself and your career. To us, both count.
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