Apache Felix Framework Launching and Embedding
[This document is based on Felix 1.4.0.]
Introduction
The Apache Felix framework is intended to be easily launchable and embeddable. For example, Felix avoids the use of system properties for configuration, since these are globals and can cause interference if multiple framework instances are created in the same VM. Felix also tries to multiplex singleton facilities, like the URL stream handler factory. The goal is to make it possible to use Felix in as many scenarios as possible; however, this is still just a goal. In other words, this is a work in progress and if any issues arise, it would be greatly appreciated if they are brought to the attention of the Felix community. The next section provides a Felix API overview, while the remainder of the document is divided into two sections, one focusing on how to launch Felix and one focusing on how to embed Felix into a host application.
API Overview
The Felix framework is implemented by the org.apache.felix.framework.Felix class or just Felix for short. As part of the ongoing OSGi specification process, there is a movement to standardize the API for launching and embedding OSGi framework implementations. The approach is to have the framework implement the org.osgi.framework.launch.Framework interface, which extends the org.osgi.framework.Bundle interface. These interfaces provide the necessary means to launch and manage framework instances. The Bundle interface is defined as:
public interface Bundle { BundleContext getBundleContext(); long getBundleId(); URL getEntry(String name); Enumeration getEntryPaths(String path); Enumeration findEntries(String path, String filePattern, boolean recurse); Dictionary getHeaders(); Dictionary getHeaders(String locale); long getLastModified(); String getLocation(); URL getResource(String name); Enumeration getResources(String name) throws IOException; ServiceReference[] getRegisteredServices(); ServiceReference[] getServicesInUse(); int getState(); String getSymbolicName(); boolean hasPermission(Object obj); Class loadClass(String name) throws ClassNotFoundException; void start() throws BundleException; void stop() throws BundleException; void uninstall() throws BundleException; void update() throws BundleException; void update(InputStream is) throws BundleException; }
The Framework interface is defined as:
public interface Framework extends Bundle { void init(); FrameworkEvent waitForStop(); }
An additional requirement for framework implementations not captured in the interface definitions is that they must implement a public constructor that accepts a Map, which is used to pass in configuration properties. When you instantiate the Felix class, the resulting object is the actual System Bundle that bundles inside the framework will see if they get bundle 0, which is the System Bundle as defined by the OSGi specification.
| WARNING This API is undergoing changes and is not completely finalized, so future changes are possible. |
Creating and Configuring the Framework Instance
To create a framework instance, simply instantiate the Felix class. A newly created framework instance is in the Bundle.INSTALLED state. You configure the instance by passing the constructor a Map containing its configurations properties. The configuration map may contain the following OSGi standard properties:
- org.osgi.framework.system.packages - specifies a list of packages the system bundle should export from the environment; if this is not set, then the framework uses a reasonable default fault.
- org.osgi.framework.system.packages.extra - specifies a list of additional packages the system bundle should export from the environment that are appended to the packages specified in org.osgi.framework.system.packages; there is no default value for this property.
- org.osgi.framework.bootdelegation - specifies a list of packages that should be made implicitly available to all bundles from the environment (i.e., no need to import them); there is no default value for this property and its use should be avoided.
- org.osgi.framework.storage - specifies the path to a directory, which will be created if it does not exist, to use for bundle cache storage; the default value for this property is "felix-cache" in the current working directory.
- org.osgi.framework.storage.clean - specifies whether the bundle cache should be flushed; the default value for this property is "none", but it can be changed to "onFirstInit" to flush the bundle cache when the framework is initialized.
- org.osgi.framework.startlevel - specifies the start level the framework enters upon startup; the default value for this property is 1.
Felix also has the following, non-standard configuration properties:
- felix.cache.rootdir - specifies which directory should be used to calculate absolute paths when relative paths are used for the org.osgi.framework.storage property; the default value for this property is the current working directory.
- felix.systembundle.activators - specifies a List of BundleActivator instances that are started/stopped when the System Bundle is started/stopped; the specified instances will receive the System Bundle's BundleContext when invoked.
- felix.log.logger - specifies an instance of org.apache.felix.framework.util.Logger that the framework uses as its default logger.
- felix.log.level - specifies an integer String whose value indicates the degree of logging reported by the framework; the default value is "1" and "0" turns off logging completely, otherwise log levels match those specified in the OSGi Log Service (i.e., 1 = error, 2 = warning, 3 = information, and 4 = debug).
- felix.startlevel.bundle - specifies the start level for newly installed bundles; the default value is 1.
- framework.service.urlhandlers - specifies whether or not to activate the URL Handlers service for the framework instance; the default value is "<tt>true</tt>", which results in the <tt>URL.setURLStreamHandlerFactory()</tt> and <tt>URLConnection.setContentHandlerFactory()</tt> being called.
The configuration map passed into the constructor is copied and the keys are treated as case insensitive. You are not able to change the framework's configuration after construction. If you need a different configuration, you must create a new framework instance.
| WARNING Felix 1.4.0 introduced some significant changes to its configuration properties; if you are upgrading from a previous version, the usage document describes the configuration property changes. |
Starting the Framework Instance
The start() method is used to start the framework instance. If the init() method was not invoked prior to calling start(), then it is implicitly invoked from start(). The two methods result in two different framework state transitions:
- init() results in the framework instance in the Bundle.STARTING state.
- start() results in the framework instance in the Bundle.ACTIVE state.
The init()} method is necessary since the framework does not have a {{BundleContext when it is first created, so a transition to the Bundle.STARTING state is required to acquire its context (via Bundle.getBundleContext()) for performing various tasks, such as installing bundles. Note that Felix also provides the felix.systembundle.activators property that serves a similar purpose. After the init() method completes, the follow actions have been performed:
- Event handling is enabled.
- The security manager is installed if it is enabled.
- The framework is set to start level 0.
- All bundles in the bundle caches are reified and their state is set to Bundle.INSTALLED.
- The framework gets a valid BundleContext.
- All framework-provided services are made available (e.g., PackageAdmin, StartLevel, etc.).
- The framework enters the Bundle.STARTING state.
A call to start() is necessary to start the framework instance, if the init() method is invoked manually. Invoking init() or start() on an already started framework as no effect.
Stopping the Framework Instance
To stop the framework instance, invoke the stop() method, which will asynchronously stop the framework. To know when the framework has finished its shutdown sequence, use the waitForStop() method to wait until it is complete. A stopped framework will be in the Bundle.RESOLVED state. It is possible to restart the framework, using the normal combination of init()/start() methods as previously described.
Launching Felix
Launching Felix is fairly simple and involves only three steps:
- Define some configuration properties.
- Create an instance of org.apache.felix.framework.Felix with the configuration properties.
- Invoke the org.apache.felix.framework.Felix.start() method.
In reality, the first step is optional, since all properties will have reasonable defaults, but if you are creating a launcher you will generally want to more than that, such as automatically installing and starting bundles when you start the framework instance. The default Felix launcher defines reusable functionality to automatically install and/or start bundles upon framework startup; see the usage document for more information on configuring Felix and on the various configuration properties.
The remainder of this section describes how the standard Felix launcher works as well as how to create a custom launcher for Felix.
Standard Felix Launcher
The standard Felix launcher is very simple and is not intended to solve every possible requirement; it is intended to work for most standard situations. Most special launching requirements should be resolved by creating a custom launcher. This section describes how the standard launcher works. The following code represents the complete main() method of the standard launcher, each numbered comment will be described in more detail below:
public static void main(String[] argv) throws Exception { // (1) Check for proper command line usage. if (args.length > 1) { System.out.println("Usage: [<bundle-cache-dir>]"); System.exit(0); } // (2) Load system properties. Main.loadSystemProperties(); // (3) Read configuration properties. Properties configProps = Main.loadConfigProperties(); // (4) Copy framework properties from the system properties. Main.copySystemProperties(configProps); // (5) If specified, use command-line argument as path to bundle cache. if (args.length > 0) { configProps.setProperty(Constants.FRAMEWORK_STORAGE, args[0]); } // (6) Create a list for custom framework activators and // add an instance of the auto-activator it for processing // auto-install and auto-start properties. Add this list // to the configuration properties. List list = new ArrayList(); list.add(new AutoActivator(configProps)); configProps.put(FelixConstants.SYSTEMBUNDLE_ACTIVATORS_PROP, list); // Print welcome banner. System.out.println("\nWelcome to Felix."); System.out.println("=================\n"); try { // (7) Create an instance and start the framework. m_felix = new Felix(configProps); m_felix.start(); // (8) Wait for framework to stop to exit the VM. m_felix.waitForStop(); System.exit(0); } catch (Exception ex) { System.err.println("Could not create framework: " + ex); ex.printStackTrace(); System.exit(-1); } }
The general steps of the standard launcher are quite straightforward:
- The launcher only supports a single, optional command-line argument, which is the path to the bundle cache, so check for this and issue a usage message it there are more than one arguments.
- Load any system properties specified in the system.properties file; this file is typically located in the conf/ directory of the Felix installation directory, but it can be specified directly using the felix.system.properties system property. This file is not needed to launch Felix and is provided merely for convenience when system properties must be specified. The file is a standard Java properties file, but it also supports property substitution using ${<property-name} syntax. Property substitution can be nested; only system properties will be used for substitution.
- Load any configuration properties specified in the config.properties file; this file is typically located in the conf/ directory of the Felix installation directory, but it can be specified directly using the felix.config.properties system property. This file is used to configure the Felix instance created by the launcher. The file is a standard Java properties file, but it also supports property substitution using "${<property-name}" syntax. Property substitution can be nested; configuration and system properties will be used for substitution with configuration properties having precedence.
- For convenience, any configuration properties that are set as system properties will be copied into the set of configuration properties to provide an easy way to add to or override configuration properties specified in the config.properties file.
- If there is a single command-line argument, then use that to set the value of org.osgi.framework.storage; relative paths are relative to the current directory unless the felix.cache.rootdir property is set.
- Create a list to hold custom framework activators and add an instance of org.apache.felix.main.AutoActivator, which will process felix.auto.install and felix.auto.start configuration properties during framework startup to automatically install and/or start bundles; see the usage document for more information configuration properties.
- Create the Felix instance passing in the configuration properties, then call start().
- Invoke waitForStop() to wait for the framework to stop to force the VM to exit; this is necessary because the framework never calls System.exit() and some libraries (e.g., Swing) create threads that will not allow the VM to exit.
The framework is not active until the start() method is called. If no shell bundles are installed and started or if there is difficulty locating the shell bundles specified in the auto-start property, then it will appear as if the framework is hung, but it is actually running without any way to interact with it since the shell bundles provide the only means of interaction.
Custom Felix Launcher
This section creates a bare-bones launcher to demonstrate the minimum requirements for creating an interactive launcher for the Felix framework. This example uses the standard Felix shell bundles for interactivity, but any other bundles could be used instead. For example, the shell service and telnet bundles could be used to launch Felix and make it remotely accessible.
This example launcher project has the following directory structure:
launcher/ lib/ org.apache.felix.main-1.4.0.jar bundle/ org.apache.felix.shell-1.0.2.jar org.apache.felix.shell.tui-1.0.2.jar src/ example/ Main.java
The lib/ directory contains Felix' main JAR file, which also contains the OSGi core interfaces. The main JAR file is used so that we can reuse the default launcher's auto-install/auto-start configuration property handling; if these capabilities are not needed, then it would be possible to use the framework JAR file instead of the main JAR file. The bundle/ directory contains the shell service and textual shell interface bundles that will be used for interacting with the framework instance. Note: If you do not launch Felix with interactive bundles, it will appear as if the framework instance is hung, but it is actually just sitting there waiting for someone to tell it to do something. The src/example/ directory contains the following Main.java file, which is a very simplistic Felix launcher.
package example; import java.util.ArrayList; import java.util.List; import java.util.Map; import java.util.HashMap; import org.osgi.framework.Constants; import org.apache.felix.framework.Felix; import org.apache.felix.framework.util.FelixConstants; import org.apache.felix.main.AutoActivator; public class Main { private static Felix m_felix = null; public static void main(String[] argv) throws Exception { // Print welcome banner. System.out.println("\nWelcome to Felix."); System.out.println("=================\n"); Map configMap = new HashMap(); configMap.put(AutoActivator.AUTO_START_PROP + ".1", "file:bundle/org.apache.felix.shell-1.0.2.jar " + "file:bundle/org.apache.felix.shell.tui-1.0.2.jar"); List list = new ArrayList(); list.add(new AutoActivator(configMap)); configMap.put(FelixConstants.SYSTEMBUNDLE_ACTIVATORS_PROP, list); try { m_felix = new Felix(configMap); m_felix.start(); m_felix.waitForStop(); System.exit(0); } catch (Exception ex) { System.err.println("Could not create framework: " + ex); ex.printStackTrace(); System.exit(-1); } } }
This launcher has all information hard coded in it, unlike the default Felix launcher, which loads configuration properties from files and performs variable substitution. This simple launcher provides a good starting point if the features of the default launcher are not necessary. Since very few configuration properties are specified, the default values are used. In the case of the framework bundle cache, it will use "felix-cache" in the current directory.
By breaking down the above source code into small chunks, it is quite easy to see what is going on.
Map configMap = new HashMap();
This simply creates a map to hold configuration properties.
configMap.put(AutoActivator.AUTO_START_PROP + ".1", "file:bundle/org.apache.felix.shell-1.0.2.jar " + "file:bundle/org.apache.felix.shell.tui-1.0.2.jar");
This sets the AutoActivator.AUTO_START_PROP configuration property (string value "felix.auto.start"), which is a space-delimited list of bundle URLs that the framework will automatically install and start when the framework starts. However, this property key cannot be used as is; it must be appended with a "." and then a number, where the number represents the start level for the bundle when it is installed. In this particular example, ".1" is appended to the property name, thus the two bundles will be installed into start level one. This example uses relative file: URLs, which will load the bundles from the bundle/ directory assuming that the launcher is started from the root directory of the launcher project. It is also possible to specify absolute URLs or remote URLs.
List list = new ArrayList(); list.add(new AutoActivator(configMap)); configMap.put(FelixConstants.SYSTEMBUNDLE_ACTIVATORS_PROP, list);
This above creates a list to hold custom framework activators and adds an instance of org.apache.felix.main.AutoActivator to it, which will process the auto-install and auto-start configuration properties during framework startup. The list of activators is then added to the configuration map.
m_felix = new Felix(configMap);
m_felix.start();
These steps create the framework instance and start it. The configuration property map is passed into the Felix constructor.
m_felix.waitForStop();
System.exit(0);
These final steps cause the launching application thread to wait for the framework to stop and when it does the launching thread calls System.exit() to make sure the VM actually exits.
The following command compiles the launcher when run from the root directory of the launcher project:
javac -d . -classpath lib/org.apache.felix.main-1.4.0.jar src/example/Main.java
After executing this command, an example/ directory is created in the current directory, which contains the generated class file. The following command executes the simple launcher when run from the root directory of the launcher project:
java -cp .:lib/org.apache.felix.main-1.4.0.jar example.Main
After executing this command, a "felix-cache/" directory is created that contains the installed bundles, which were installed from the bundle/ directory.
Embedding Felix
Embedding Felix into a host application is a simple way to provide a sophisticated extensibility mechanism (i.e., a plugin system) to the host application. Embedding Felix is very similar to launching Felix as described above, the main difference is that the host application typically wants to interact with the framework instance and/or installed bundles/services from the outside. This is fairly easy to achieve with Felix, but there are some subtle issues to understand. This section presents the mechanisms for embedding Felix into a host application and the issues in doing so.
Host/Felix Interaction
In the section on launching Felix above, the Felix accepts a configuration property called felix.systembundle.activators, which is a list of bundle activator instances. These bundle activator instances provide a convenient way for host applications to interact with the Felix framework. The ability offered by these activators can also be accomplished by invoking init() on the framework instance and the using getBundleContext() to get the System Bundle's context, but it can be more convenient to use an activator instance.
Each activator instance passed into the constructor effectively becomes part of the System Bundle. This means that the start()/stop() methods of each activator instance in the list gets invoked when the System Bundle's activator start()/stop() methods gets invoked, respectively. Each activator instance will be given the System Bundle's BundleContext object so that they can interact with the framework. Consider following snippet of a bundle activator:
public class HostActivator implements BundleActivator { private BundleContext m_context = null; public void start(BundleContext context) { m_context = context; } public void stop(BundleContext context) { m_context = null; } public Bundle[] getBundles() { if (m_context != null) { return m_context.getBundles(); } return null; } }
Given the above bundle activator, it is now possible to embed Felix into a host application and interact with it as the following snippet illustrates:
public class HostApplication { private HostActivator m_activator = null; private Felix m_felix = null; public HostApplication() { // Create a configuration property map. Map configMap = new HashMap(); // Create host activator; m_activator = new HostActivator(); List list = new ArrayList(); list.add(m_activator); configMap.put(FelixConstants.SYSTEMBUNDLE_ACTIVATORS_PROP, list); try { // Now create an instance of the framework with // our configuration properties. m_felix = new Felix(configMap); // Now start Felix instance. m_felix.start(); } catch (Exception ex) { System.err.println("Could not create framework: " + ex); ex.printStackTrace(); } } public Bundle[] getInstalledBundles() { // Use the system bundle activator to gain external // access to the set of installed bundles. return m_activator.getBundles(); } public void shutdownApplication() { // Shut down the felix framework when stopping the // host application. m_felix.stop(); m_felix.waitForStop(); } }
Notice how the HostApplication.getInstalledBundles() method uses its activator instance to get access to the System Bundle's context in order to interact with the embedded Felix framework instance. This approach provides the foundation for all interaction between the host application and the embedded framework instance.
Providing Host Application Services
Providing services from the host application to bundles inside the embedded Felix framework instance follows the basic approach laid out in above. The main complication for providing a host application service to bundles is the fact that both the host application and the bundles must be using the same class definitions for the service interface classes. Since the host application cannot import classes from a bundle, this means that the service interface classes must be accessible on the class path, typically as part of the host application itself. The host application then must export the service interface package via the system bundle so that bundles installed into the embedded framework instance can import it. This is achieved using the org.osgi.framework.system.packages.extra configuration property previously presented.
Consider the follow simple property lookup service:
package host.service.lookup; public class Lookup { public Object lookup(String name); }
This package is simply part of the host application, which is potentially packaged into a JAR file and started with the "java -jar" command. Now consider the following host application bundle activator, which will be used to register/unregister the property lookup service when the embedded framework instance starts/stops:
package host.core; import java.util.Map; import org.osgi.framework.BundleActivator; import org.osgi.framework.BundleContext; import org.osgi.framework.ServiceRegistration; import host.service.lookup; public class HostActivator implements BundleActivator { private Map m_lookupMap = null; private BundleContext m_context = null; private ServiceRegistration m_registration = null; public HostActivator(Map lookupMap) { // Save a reference to the service's backing store. m_lookupMap = lookupMap; } public void start(BundleContext context) { // Save a reference to the bundle context. m_context = context; // Create a property lookup service implementation. Lookup lookup = new Lookup() { public Object lookup(String name) { return m_lookupMap.get(name); } }; // Register the property lookup service and save // the service registration. m_registration = m_context.registerService( Lookup.class.getName(), lookup, null); } public void stop(BundleContext context) { // Unregister the property lookup service. m_registration.unregister(); m_context = null; } }
Given the above host application bundle activator, the following code snippet shows how the host application could create an embedded version of the Felix framework and provide the property lookup service to installed bundles:
package host.core; import java.util.List; import java.util.ArrayList; import java.util.Map; import java.util.HashMap; import host.service.lookup.Lookup; import org.apache.felix.framework.Felix; import org.apache.felix.framework.util.FelixConstants; import org.osgi.framework.Constants; public class HostApplication { private HostActivator m_activator = null; private Felix m_felix = null; private Map m_lookupMap = new HashMap(); public HostApplication() { // Initialize the map for the property lookup service. m_lookupMap.put("name1", "value1"); m_lookupMap.put("name2", "value2"); m_lookupMap.put("name3", "value3"); m_lookupMap.put("name4", "value4"); // Create a configuration property map. Map configMap = new HashMap(); // Export the host provided service interface package. configMap.put(Constants.FRAMEWORK_SYSTEMPACKAGES_EXTRA, "host.service.lookup; version=1.0.0"); // Create host activator; m_activator = new HostActivator(m_lookupMap); List list = new ArrayList(); list.add(m_activator); configMap.put(FelixConstants.SYSTEMBUNDLE_ACTIVATORS_PROP, list); try { // Now create an instance of the framework with // our configuration properties. m_felix = new Felix(configMap); // Now start Felix instance. m_felix.start(); } catch (Exception ex) { System.err.println("Could not create framework: " + ex); ex.printStackTrace(); } } public void shutdownApplication() { // Shut down the felix framework when stopping the // host application. m_felix.stop(); m_felix.waitForStop(); } }
Rather than having the host application bundle activator register the service, it is also possible for the the host application to simply get the bundle context from the bundle activator and register the service directly, but the presented approach is perhaps a little cleaner since it allows the host application to register/unregister the service when the system bundle starts/stops.
Using Services Provided by Bundles
Using services provided by bundles follows the same general approach of using a host application bundle activator. The main complication for the host application using a service from a bundle is the fact that both the host application and the bundle must be using the same class definitions for the service interface classes. Since the host application cannot import classes from a bundle, this means that the service interface classes must be accessible on the class path, typically as part of the host application itself. The host application then must export the service interface package via the system bundle so that bundles installed into the embedded framework instance can import it. This is achieved using the org.osgi.framework.system.packages.extra configuration property previously presented.
Consider the following simple command service interface for which bundles provide implementations, such as might be used to create an extensible interactive shell:
package host.service.command; public class Command { public String getName(); public String getDescription(); public boolean execute(String commandline); }
This package is simply part of the host application, which is potentially packaged into a JAR file and started with the "java -jar" command. Now consider the previously introduced host application bundle activator below, which simply provides access to the system bundle context:
package host.core; import org.osgi.framework.BundleActivator; import org.osgi.framework.BundleContext; public class HostActivator implements BundleActivator { private BundleContext m_context = null; public void start(BundleContext context) { m_context = context; } public void stop(BundleContext context) { m_context = null; } public BundleContext getContext() { return m_context; } }
With this bundle activator, the host application can use command services provided by bundles installed inside its embedded Felix framework instance. The following code snippet illustrates one possible approach:
package host.core; import java.util.List; import java.util.ArrayList; import java.util.Map; import host.service.command.Command; import org.apache.felix.framework.Felix; import org.apache.felix.framework.util.FelixConstants; import org.apache.felix.framework.cache.BundleCache; import org.osgi.framework.Constants; import org.osgi.util.tracker.ServiceTracker; public class HostApplication { private HostActivator m_activator = null; private Felix m_felix = null; private ServiceTracker m_tracker = null; public HostApplication() { // Create a configuration property map. Map configMap = new HashMap(); // Export the host provided service interface package. configMap.put(Constants.FRAMEWORK_SYSTEMPACKAGES_EXTRA, "host.service.command; version=1.0.0"); // Create host activator; m_activator = new HostActivator(); List list = new ArrayList(); list.add(m_activator); configMap.put(FelixConstants.SYSTEMBUNDLE_ACTIVATORS_PROP, list); try { // Now create an instance of the framework with // our configuration properties. m_felix = new Felix(configMap); // Now start Felix instance. m_felix.start(); } catch (Exception ex) { System.err.println("Could not create framework: " + ex); ex.printStackTrace(); } m_tracker = new ServiceTracker( m_activator.getContext(), Command.class.getName(), null); m_tracker.open(); } public boolean execute(String name, String commandline) { // See if any of the currently tracked command services // match the specified command name, if so then execute it. Object[] services = m_tracker.getServices(); for (int i = 0; (services != null) && (i < services.length); i++) { try { if (((Command) services[i]).getName().equals(name)) { return ((Command) services[i]).execute(commandline); } } catch (Exception ex) { // Since the services returned by the tracker could become // invalid at any moment, we will catch all exceptions, log // a message, and then ignore faulty services. System.err.println(ex); } } return false; } public void shutdownApplication() { { // Shut down the felix framework when stopping the // host application. m_felix.stop(); m_felix.waitForStop(); } }
The above example is overly simplistic with respect to concurrency issues and error conditions, but it demonstrates the overall approach for using bundle-provided services from the host application.
Using Bundle Services via Reflection
It possible for the host application to use services provided by bundles without having access to the service interface classes and thus not needing to put the service interface classes on the class path. To do this, the host application uses the same general approach to acquire the system bundle context object, which it can use to look up service objects. Using either an LDAP filter or the service interface class name, the host application can retrieve the service object and then use standard Java reflection to invoke methods on the service object.
Other Approaches
The Transloader project is another attempt at dealing with issues of classes loaded from different class loaders and may be of interest.
Caveat
The code in this document has not been thoroughly tested nor even compiled and may be out of date with respect to the current Felix source code. If you find errors please report them so the that they can be corrected.
Feedback
Subscribe to the Felix users mailing list by sending a message to<EMAIL_ADDRESS>after subscribing, email questions or feedback to users@felix.apache.org.


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This was part of 9.2 I didn't know what to do so read a book on html5 Canvas :) I know most of whats
Self awareness self actualisation and self confidence all here in Search Inside Yourself Chapter 4
Daily mindfullness and keep in up digging deep into Search Inside Yourself Chapter 3
Delve deep into meditaion and countinue on with chaper 2 of Search Inside Yourself
I start playing with the drawing capabilities in CSS
Mengs lessons on Emotional Intelligence
Explaining some of the basics of webdesign
A design wish list and Technical blog
I ansew some questions on Shareefs video where he talks about and discribes the Acadmy and it's culture
After a tone of reading and reflection I answer some questions on building habbit and self improvment.
Wouldn't call it wasting time but I've probably spent too much time playing with CSS
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Resource
ResourceBurnUp
ResourceDialog
ResourceUsageChart
Routine
RoutineController
RoutineMain
StaminaComplexityControl
Task
TaskDialog
TaskScheduler
Themes
TimeBasis
TimePie
WorkBreakdownStructure
WorkHours
WorkHoursDialog


|
LaraCraft
|
Files | |
| file | AntiCube.hpp [code] |
| file | BBox.hpp [code] |
| file | Chunk.hpp [code] |
| file | ChunkColumn.hpp [code] |
| file | ColorMap.hpp [code] |
| file | common.hpp [code] |
| file | Cone.hpp [code] |
| file | ConstrainedCamera.hpp [code] |
| file | Cube.hpp [code] |
| file | DirectionalLight.hpp [code] |
| file | FilePath.hpp [code] |
| file | Geometry.hpp [code] |
| file | GLFWWindowManager.hpp [code] |
| file | glm.hpp [code] |
| file | GlobalProgram.hpp [code] |
| file | HeightMap.hpp [code] |
| file | Image.hpp [code] |
| file | MovementChecker.hpp [code] |
| file | OffsetTextureMap.hpp [code] |
| file | Pnj.hpp [code] |
| file | Program.hpp [code] |
| file | SDLWindowManager.hpp [code] |
| file | Shader.hpp [code] |
| file | SimpleTexturedSkyboxProgram.hpp [code] |
| file | Sphere.hpp [code] |
| file | TextureOffsetEnum.hpp [code] |
| file | TrackballCamera.hpp [code] |
| file | Tree.hpp [code] |
| file | VegetationMap.hpp [code] |


This is a Simple todo Application called Dashy created by me. You can use this web application to Add/Delete and Modify your todos.


How does the genome encode cells’ ability to specialize into so many different types? Mammals contain many different types of cells, each of which has a distinct program of gene expression. The particular genes expressed in each type of cell are believed to be determined in part by which noncoding regulatory sequences in the genome can be accessed by transcription factors and other regulatory proteins. However, the chromatin accessibility profiles for most cell types remain undefined, and the gene targets for the overwhelming majoriry of regulatory DNA sequences are unknown.
In collaboration with the Jay Shendure’s lab, we recently measured chromatin accessibility in more than 100,000 individual cells in the adult mouse, deriving accessibility profiles for 85 different cell types. We developed a new algorithm, Cicero, to link accessibile elements to their target genes. We also tracked the dynamics of chromatin accessibility during differentiation of blood cells using Monocle. Finally, we were able to use deep learning to build models of how DNA sequence controls the patterns of accessibility unique to each cell type. As we integrate these data with single-cell RNA-seq analyses of the mouse from our group and others, we hope to derive a better understanding of how the genome encodes each cell’s types particular program of gene regulation.
You can dive into our data and build on or modify our analysis code, both of which are freely available.


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A team of highly experienced creators completely design the site based on UI/UX principals.
Website is provided with complete backend support for monitoring analytics
Unlimited updates provided for the first year after development
Unlike premade sites, custom websites cost a portion going forward
Other Additional Services
Starting @
Need help with application design?
Let the most experience & creative designers create art
A team of highly experienced creators completely design the site based on UI/UX principals.
Website is provided with complete backend support for monitoring analytics
Unlimited updates provided for the first year after development
Unlike premade sites, custom websites cost a portion going forward
Other Additional Services
A team of highly experienced creators completely design the site based on UI/UX principals.
Website is provided with complete backend support for monitoring analytics
Unlimited updates provided for the first year after development
Unlike premade sites, custom websites cost a portion going forward
Other Additional Services
Starting @
Complete design of logos, colors, fonts
and messaging that represent your brand
A team of highly experienced creators completely design the site based on UI/UX principals.
Website is provided with complete backend support for monitoring analytics
Unlimited updates provided for the first year after development
Unlike premade sites, custom websites cost a portion going forward
Other Additional Services
A team of highly experienced creators completely design the site based on UI/UX principals.
Website is provided with complete backend support for monitoring analytics
Unlimited updates provided for the first year after development
Unlike premade sites, custom websites cost a portion going forward
Other Additional Services
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--- layout: post title: Hadouken! Ryu and Chun Li for Halloween date: 2010-11-01 04:41:00.000000000 -07:00 type: post published: true status: publish categories: [] tags: [] meta: {} author: ---
Edel and I went as two characters from Street Fighter. I was Ryu and she was Chun Li. We didn't end up with many great photos so here are two that were somewhat
salvagable.


 I have a B.S. in Mechatronics Engineer, which gives me the ability to do a lot of cool projects physically, but now I am more into the digital world. In this portfolio I will illustrate my current projects in the digital dimension mainly web development.
Hello there. You want to see what I am currently working on? Then feel free to check out my github profile.
GitHubHello there. So you are looking to contact me? The best way is through LinkedIn.
LinkedIn


Before Change
// Get the current IAM policy.
request = kms_client.projects().locations().keyRings().getIamPolicy(
resource=parent)
response = request.execute()
if "bindings" in response.keys():
print("Printing IAM policy for resource {}:".format(parent))
for binding in response["bindings"]:
After Change
resource = client.key_ring_path(project_id, location_id, key_ring_id)
// Get the current IAM policy.
policy = client.get_iam_policy(resource)
// Print results
print("Printing IAM policy for resource {}:".format(resource))
for b in policy.bindings:
for m in b.members:
print("Role: {} Member: {}".format(b.role, m))
return policy
// [END kms_get_keyring_policy]


Education |
Family |
Human Rights |
Science |
Top Reads in Family
The People and Culture of Swaziland
Birth control is how you prevent a pregnancy before it begins.
The rights of every girl
Birth control is how you prevent a pregnancy before it begins.
The People and Culture of Swaziland
Birth control is how you prevent a pregnancy before it begins.
More in family
The health hazads of indoor pollution
Birth control is how you prevent a pregnancy before it begins. There are lots of methods. Birth control can work really well and be easy to use
Read moreThe health hazads of indoor pollution
Birth control is how you prevent a pregnancy before it begins. There are lots of methods. Birth control can work really well and be easy to use. Birth control is how you prevent a pregnancy before it begins. There are lots of methods. Birth control can work really well and be easy to use
Read moreThe health hazads of indoor pollution
Birth control is how you prevent a pregnancy before it begins. There are lots of methods. Birth control can work really well and be easy to use. Birth control is how you prevent a pregnancy before it begins. There are lots of methods. Birth control can work really well and be easy to use
Read moreThe health hazads of indoor pollution
Birth control is how you prevent a pregnancy before it begins. There are lots of methods. Birth control can work really well and be easy to use
Read more...Load more


{%extends "base.html"%} {%block title%} Create New Group {%endblock%} {%block body%} Home Provisionings Install Cluster Provisionings Install Provisioning: Cluster --- Select One --- < New > {% for cluster in clusters %} {{cluster['metadata']['name']}} {% endfor %} SLATE Team Install Self Install Install SLATE Team Install Access instructions and form Self Install Setup access port and GHCP on control plane Create and plugin USB Generate PIN (done from provisioning API server) Boot USB, enter PIN Generate and display hostname Finalize {%endblock%}


Presentation Zen posts about a TED talk that I look forward to watching, Mae Jemison: the arts and science are not separate.
Who knows, maybe someday people will stop talking about that left-brain / right-brain crap.
--- layout: post title: "Art and Science" date: 2009-05-17 comments: false ---


| rNOMADS-package | An interface to the NOAA Operational Model Archive and Distribution System |
| ArchiveGribGrab | Download archived model data from the NOMADS server. |
| BuildProfile | Get model data at a specific point. |
| CheckNOMADSArchive | Check to see if archived data exists. |
| CrawlModels | Get Available Model Runs |
| DODSGrab | Download model data from the NOMADS server using the GrADS-DODS system. |
| GetClosestForecasts | Get the forecast time closest to a given date for a given model |
| GetDODSDates | Find available model run dates for data on the GrADS - DODS system. |
| GetDODSModelRunInfo | Get model coverage and data information for models on GrADS-DODS system. |
| GetDODSModelRuns | Find available model runs on the GrADS - DODS system. |
| GribGrab | Download grib file from the NOMADS server. |
| GribInfo | Get grib file inventory. |
| LinkExtractor | Extracts links from web pages |
| MagnitudeAzimuth | Convert zonal-meridional wind speeds to magnitude/azimuth. |
| ModelGrid | Transform model data into an array |
| NOMADSArchiveList | Archived models available for download through rNOMADS |
| NOMADSRealTimeList | Models available for download through rNOMADS |
| ParseModelPage | Extract predictions, levels, and variables |
| PlotWindProfile | Plot wind speed and direction |
| ReadGrib | Extract data from grib files |
| rNOMADS | An interface to the NOAA Operational Model Archive and Distribution System |
| SubsetNOMADS | Subset model data output |
| WebCrawler | Get web pages |


Before Change
// loop adds the hue to a list for the frequency of each hue
temp_hue_list_hsv = []
for i in range(len(ordered)):
j = 0
while j < list(ordered.values())[i]:
temp_hue_list_hsv.append(list(ordered.keys())[i])
j += 1
//calculate relevant statistics
circular_mean = stats.circmean(temp_hue_list_hsv, 180)
circular_std = stats.circstd(temp_hue_list_hsv, 180) // assumes samples are in the range [low to high] which they are
median = np.median(temp_hue_list_hsv)
After Change
// Therefore, hue values of zero are excluded from the calculations below
// Calculate the median encoded hue value
hue_median = np.median(h[np.where(h > 0)])
// Calculate the circular mean and standard deviation of the encoded hue values
hue_circular_mean = stats.circmean(h[np.where(h > 0)], high=179, low=0)
hue_circular_std = stats.circstd(h[np.where(h > 0)], high=179, low=0)


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In this scenario, we take a look at how a user deletes a student from the class, via the 'Student' menu commands.
Deleting a student is useful to remove students from a class spreadsheet that they have dropped, or are being dropped from,
for whatever reason. Figure 1 shows a sample class ready to delete a student.
Figure 1: Sample Class.
To delete a student, the user clicks on the student's row of data in the class spreadsheet. This
results in the student being highlighted. The user chooses the 'Student' menu
command. A list of options appears and the user chooses 'Delete Student' to
remove the student from the class; this takes the form of the following, Figure 2.
Figure 2: Delete Student path.
The dialog for selecting the path above is a confirmation for the user that they want to confirm deltion of the student they have selected. Selecting "Cancel" removes the dialog box without making any changes. Selecting "Confirm" deletes the previously selected student, and all of their corresponding data, from the class spreadsheet. This dialog is shown in Figure 3.
Figure 3: Delete Student dialog.
The result of confirming student deletion is simply the class spreadsheet displayed with the student's data removed from it; this is shown in Figure 4.
Figure 4: Delete Student Class result.
Repeating these functions for deleting students allows a user to delete as many students as they want, simply
by clicking on the student and using the delete commands.


Close
OK
Cancel
Add
Vineyard
Varietal
Vintage
Name
Price
Drink
Location
Bottle #
Comments
Search
Unopened
Drinking
Not yet drinkable
Young
Mature
Drink soon
Past prime
Vineyard
Varietal
Vintage
Name
Price
Location
Bottle #


8 A. Sprites and Parallelism Just below the stage is the “new sprite” button . Click the button to add a new sprite to the stage. The new sprite will appear in a random position on the stage, with a random color, but always facing to the right. Each sprite has its own scripts. To see the scripts for a particular sprite in the scripting area, click on the picture of that sprite in the sprite corral in the bottom right corner of the window. Try putting one of the following scripts in each sprite’s scripting area: When you click the green ﬂag, you should see one sprite rotate while the other moves back and forth. This experiment illustrates the way different scripts can run in parallel. The turning and the moving happen together. Parallelism can be seen with multiple scripts of a single sprite also. Try this example: When you press the space key, the sprite should move forever in a circle, because the move and turn blocks are run in parallel. (To stop the program, click the red stop sign at the right end of the tool bar.) Costumes and Sounds To change the appearance of a sprite, paint or import a new costume for it. To paint a costume, click on the Costumes tab above the scripting area, and click the paint button . The Paint Editor that appears is explained on page 128. There are three ways to import a costume. First select the desired sprite in the sprite corral. Then, one way is to click on the ﬁle icon in the tool bar , then choose the “Costumes…”menu item. You will see a list of costumes from the public media library, and can choose one. The second way, for a costume stored on your own computer, is to click on the ﬁle icon and choose the “Import…” menu item. You can then select a ﬁle in any picture format (PNG, JPEG, etc.) supported by your browser. The third way is quicker if the ﬁle you want is visible on the desktop: Just drag the ﬁle onto the Snap ! window. In any of these cases, the scripting area will be replaced by something like this:


yeah UV mapping is what works
you don't really need to make things smooth
I haven't done any smoothing on any of my models. The reason you don't is because smoothing makes more faces, which in turn will make the FPS on the game go down.
Let me show you an example I made real quick.
My basic model was the same as yours, then i went into edit mode, and front view and selected all of the top vertices of the coffin
Then, I extruded up a little, then scale it in, so that it made an incline in, which shaped the top of the coffin.
Next, I moved the bottom up where it was small, so I could get that line that runs all the way around, then extruded it down to make the bottom walls of the coffin.
Then I selected all of the faces except for the very top part of the lid, and UV textured them as squares.
Finally, I selected all of the top parts of the coffin, UV unwrapped them from the top view (projected from view), and stretched the map out to fit the whole square of the texture.


{% extends "base.html" %} {% block navbar_breadcrumb %} {% endblock navbar_breadcrumb %} {% block subtitle %} {% if code == 400 %} Error 400 - Bad Request {% elif code == 401 %} Error 401 - Unauthorized {% elif code == 404 %} Error 404 - Page Not Found {% elif code == 500 %} Error 500 - System Error {% endif %} {% endblock subtitle %} {% block content %}
{% if code == 400 %} Oops! You reached this page because you entered some input that Oppia doesn't know how to process. {% elif code == 401 %} Sorry, you are not authorized to access this page. {% elif code == 404 %} Oops! Sorry, we could not find the page you were looking for. {% elif code == 500 %} Oops! An internal error occurred. {% endif %}
The best thing to do now is probably to return to the home page. However, if this issue recurs, and you think it shouldn't, please let us know on our issue tracker. Sorry about this.


Standalone message:
Message in a card with action
Message in a card content:
Toggle visibility:
Using color:
color
Using class:
class


you peer out into the corner of the map and realize that you can't go
any further in this direction...
.....
you stop and think for a moment
you continue to think about why you can't go any further...
then you notice that there are butterflys south, south east, and east of you
Megan no longer cares about the west and north side of planet megania.
and instead becomes more depth in thought on how to catch a butterfly.


Copyright (c) Gigamic Games
Each player has 12 stones. The game is played on the following board.
|
| An example
In this game, Black has won, since Black's longest chain has 7 stones, and White's has only 4 stones. |
David Glaude has a website with more information about Zenix.


Paris launches works on 2024 Olympic village
SAINT-OUEN, France: The French government on Monday (Nov 4) launched construction on a massive project to build from scratch the village for the 2024 Olympic Games in Paris, a development that aims to reinvigorate the poorest area in the country.
The Olympic village, which will house some 15,000 athletes and officials, is being built in the Seine-Saint-Denis area north of Paris, which for years has suffered from social tensions and neglect.
But the project is also controversial locally as it will force the relocation of residents, businesses and even schools in the area where the village is to be constructed.
Prime Minister Edouard Philippe launched the works, which are set to last over three years, in the suburb of Saint-Ouen.
Putting a strong emphasis on legacy, the authorities plan after the games to reconfigure the area into a new neighbourhood that will offer a total of 3,000 homes and also increase participation in sports.
"If we want them (the Games) to be a success we must make sure that all this organisation, all this financing and this mobilisation does not just vanish when the Olympic flame goes out," said Philippe as he launched the works.
"It needs to last," he added.
'IDIOTIC ACTS'
Legacy is now a huge aspect of Olympic developments, especially after the success of the London 2012 Olympics which helped breathe new life into the east of the British capital.
There have already been protests locally against the Olympic village project, which requires the clearing of a zone that is home to over 20 businesses, three schools, a hotel, a student residence and a residence for foreign workers.
"We have been here for 40 years and now there is no longer any space for us," said Boubacar Diallo, who represents foreign workers living in a residence.
Two new residences should be finished by 2022 to house all those affected. But the residents are rejecting the temporary housing on offer until they are completed.
Responding to the criticism, Solideo, the public company overseeing all the works, insisted the local area would get a boost.
"What is going to happen over the next 3-4 years is compensation for what has not happened the last 30 years", it said.
The budget for the games amounts to 6.8 billion euros ($7.6 billion), 1.5 billion of which will come from the state.
The French authorities have long expressed concern over the stark disparities in the Paris area, with wealthy citizens concentrated in the centre but northern areas far less well-off.
A report in June said rising property prices had widened the gap between rich and poor in the Paris region, where the number of people living in poverty has increased.


Recently renovated, the Westin Seattle is a four star downtown Seattle hotel. It has 891 smoke-free guest rooms and suites featuring panoramic views of the whole area. It is located in Seattle's financial and shopping district and is within walking distance many attractions. Summer is a great season for Seattle, and hotel rooms at competitive prices are hard to find. The ICME 2016 local team has worked very hard to secure a very favorable room rate in the Westin Seattle. The group rate for a single occupancy room is $249 per night. For early bird, there is a further $40 discount for a limited amount of rooms, bringing the room rate to $209. To take advantage of the early bird rate, please book your room as soon as possible here. For your convenience, we strongly recommend you to book with the main venue hotel. We have negotiated a significant discount with Westin Hotel, and the availability is limited. So, please make your reservation at your earliest convenience. Alternative hotels:We highly recommend you book at Westin Seattle where the conference has negotiated discounted rates. If you missed it, hotels in Seattle downtown is generally very expensive in summer. Below are some hotel options with walking distance to the venue. For cheaper options, we also listed hotel options in nearby areas where you can commute by bus or LINK for your reference. Hotel room availability and price may fluctuate by day with travel adjustments and cancellations. You are also welcome to browse online and make your own choice. 1. Seattle downtown area, walking distance to Westin
2. University of Washington area. 25-30 min, Bus #70/74 from Westlake Station or Virginia & 6th ave, every 10 min
3. Seatac Airport area. 40 min, LINK from Westlake Station, every 6 min in peak hours (LINK is a better choice than bus during rush hours.)
4. Bellevue: 30-45min. Bus from Westlake Station or Virginia & 6th Ave.
|


Visual Techniques for Analysing Set-typed Data
Data provided by
SetViz survey
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You lot are aware, I think, that Hooting Yard is a with-it, groovy, space age kinda place. If proof were needed (which it isn't) then what could be more with-it and groovy and space age than the release of Mr Key's recent paperback Brute Beauty And Valour And Act, Oh, Air, Pride, Plume, Here Buckle! in the decisively intangible form of an ebook for Kindle?


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| PERLSYNOLOGY(1) | Perl Programmers Reference Guide | PERLSYNOLOGY(1) |
The NAS systems are equipped with Synology Disk Storage Manager (DSM), which is a trimmed-down Linux system enhanced with several tools for managing the NAS. There are several flavours of hardware: Marvell Armada (ARMv5tel, ARMv7l), Intel Atom (i686, x86_64), Freescale QorIQ (PPC), and more. For a full list see the Synology FAQ <http://forum.synology.com/wiki/index.php/What_kind_of_CPU_does_my_NAS_have>.
Since it is based on Linux, the NAS can run many popular Linux software packages, including Perl. In fact, Synology provides a ready-to-install package for Perl, depending on the version of DSM the installed perl ranges from 5.8.6 on DSM-4.3 to 5.24.0 on DSM-6.1.
There is an active user community that provides many software packages for the Synology DSM systems; at the time of writing this document they provide Perl version 5.24.1.
This document describes various features of Synology DSM operating system that will affect how Perl 5 (hereafter just Perl) is configured, compiled and/or runs. It has been compiled and verified by Johan Vromans for the Synology DS413 (QorIQ), with feedback from H.Merijn Brand (DS213, ARMv5tel and RS815, Intel Atom x64).
As DSM is a trimmed-down Linux system, it lacks many of the tools and libraries commonly found on Linux. The basic tools like sh, cp, rm, etc. are implemented using BusyBox <http://en.wikipedia.org/wiki/BusyBox>.
http://www.cphub.net http://packages.quadrat4.de
The application window should now show an icon for iPKGui.
If you want to smoke test Perl, install "patch".
The next step is to add some symlinks to system libraries. For example, the development software expect a library "libm.so" that normally is a symlink to "libm.so.6". Synology only provides the latter and not the symlink.
Here the actual architecture of the Synology system matters. You have to find out where the gcc libraries have been installed. Look in /opt for a directory similar to arm-none-linux-gnueab or powerpc-linux-gnuspe. In the instructions below I'll use powerpc-linux-gnuspe as an example.
cd /lib ln -s libm.so.6 libm.so ln -s libcrypt.so.1 libcrypt.so ln -s libdl.so.2 libdl.so cd /opt/powerpc-linux-gnuspe/lib (or /opt/arm-none-linux-gnueabi/lib) ln -s /lib/libdl.so.2 libdl.so
WARNING: When you perform a system software upgrade, these links will disappear and need to be re-established.
DSM 6
Using iPkg has been deprecated on DSM 6, but an alternative is available for DSM 6: entware/opkg. For instructions on how to use that, please read Install Entware-ng on Synology NAS <https://github.com/Entware-ng/Entware-ng/wiki/Install-on-Synology-NAS>
That sadly does not (yet) work on QorIQ. At the moment of writing, the supported architectures are armv5, armv7, mipsel, wl500g, x86_32, and x86_64. Check here <http://pkg.entware.net/binaries/> for supported platforms.
Entware-ng comes with a precompiled 5.24.1 (June 2017) that allowes building shared XS code. Note that this installation does not use a site_perl folder. The available "cpan" works. If all required development packages are installed too, also for XS.
# Administrivia<EMAIL_ADDRESS># Install Perl in a tree in /opt/perl instead of /opt/bin. prefix=/opt/perl # Select the compiler. Note that there is no 'cc' alias or link. cc=gcc # Build flags. ccflags="-DDEBUGGING" # Library and include paths. libpth="/lib" locincpth="/opt/include" loclibpth="/lib"
You may want to create the destination directory and give it the right permissions before installing, thus eliminating the need to build Perl as a super user.
In the directory where you unpacked the sources, issue the familiar commands:
./Configure -des make make test make install
No known problems yet
Build
This error was fixed in the Perl development git for version 5.19, commit 7a8f1212e5482613c8a5b0402528e3105b26ff24.
Failing tests
WARNING: Do not symlink /lib/glibc.so.6 to /lib/glibc.so or some system components will start to fail.
For smoke testing you need a running Perl. You can either install the Synology supplied package for Perl 5.8.6, or build and install your own, much more recent version.
Note that I could not run successful smokes when initiated by the Synology Task Scheduler. I resorted to initiating the smokes via a cron job run on another system, using ssh:
ssh nas1 wrk/Test-Smoke/smoke/smokecurrent.sh
Local patches
When local patches are applied with smoke testing, the test driver will automatically request regeneration of certain tables after the patches are applied. The Synology supplied Perl 5.8.6 (at least on the DS413) is NOT capable of generating these tables. It will generate opcodes with bogus values, causing the build to fail.
You can prevent regeneration by adding the setting
'flags' => 0,
to the smoke config, or by adding another patch that inserts
exit 0 if $] == 5.008006;
in the beginning of the "regen.pl" program.
For example, the basic Perl does not have any of the DB libraries (db, dbm, ndbm, gdsm). You can add these using iPKGui, however, you need to set environment variable LD_LIBRARY_PATH to the appropriate value:
LD_LIBRARY_PATH=/lib:/opt/lib export LD_LIBRARY_PATH
This setting needs to be in effect while Perl is built, but also when the programs are run.
| 2019-10-21 | perl v5.30.3 |


Hello world!
REST service:
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Angular 2 UI JavaScript
I'm a web developer skilled in frontend JavaScript frameworks including Angular & Angular 2, JS, CSS, HTML, mobile development, Illustrator and Photoshop and currently work as a UI Developer at Penn Foster. I’m not located in any particular city because I work remotely- something that has allowed me to jump in and focus on work without distractions and without having to sit in traffic. :)
I love achieving goals I set for myself both in learning new JS frameworks, new programming languages, Illustrator and design concepts. Small steps, consistency, & practice are keys to progress and expertise. In ten years, I hope to be an expert at the full spectrum of web development and design. Outside of web development, I relax by practicing and progressing at yoga, weight training, paddle boarding and travelling.


Every year at our graduation ceremony when our Pre-Kindergarten class of graduates completes their preschool journey and embark on their adventure through elementary school, we request all parents to sign our "Treasured Memories" journal with their feedback from their experience with us. This journal represents our treasure box of memories and messages from parents for the past twelve years.
The following testimonials are straight from our treasure box! We are currently in the process of updating our website with all testimonials leading up to our 2018 graduation.


Operators are main foundation of thew programming language which are used for building of logic.So all the fuctionalitiy and logic of the program deals with the operators.the operators allows us perform differnt operations on differnt operands.
Their are differnt kind of operations that can be performed in C .
This operator is used for doing of arithematic operations with operands
Eg: Addition(' + '),Subtraction(' - '),Multiplication(' * '),Division(' / '),Modular Division(' % ').
Output :
Enter two numbers 4 2 a+b = 6 a-b = 2 a*b = 8 a/b = 2 a%b = 0
In Relational Operators it checks the relationaship between the two operands.The result after checking relationaship ,if it is true it returns 1 (or) returns 0 if it is false
Eg : == , != , > , < , >= ,<=
Output
False True False True False
Logical AND ( && ):Logical AND operator. If both the operands are non-zero, then the condition becomes true.
Logical OR ( || ):Logical OR Operator. If any of the two operands is non-zero, then the condition becomes true.
Logical NOT ( ! ) :Logical NOT Operator. It is used to reverse the logical state of its operand. If a condition is true, then Logical NOT operator will make it false.
Assignment Operators
The basic assignment operator is equal ( = ), which assigns the value of its right operand to its left operand.
Eg: = , += , -= , *= , /=.
Bitwise Operators
Bitwise operator works on bits and perform bit-by-bit operation. Arithematical operations are converted to bit-level which makes processing faster and saves power.


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time: dataproperties (17)
day
dayOfYear
days
hour
hours
inXSDDateTime
minute
minutes
month
months
second
seconds
week
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year
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OWL HTML inside


Design Improvements
Posted: Sat Apr 29, 2006 6:30 pm
I've been doing some programming research and found a few new tips that will help me improve the client's performance, as it leaves much to be desired on some peoples' hardware. Being as there isn't much point in having a game if people can't play it, I'll be implementing render-throttling (reducing the number of render-calls if the frame rate drops) and vertex shaders. Vertex shaders have very good software emulation (processor-integrated on Intel machines) for those machines without hardware support, and will improve rendering speeds three- to four-fold on computers that do.
In another area, I'll be improving the GUI so that it no longer has to be stretched in order to remain usable. This will mean some of our lovable layouts will...explode...in the process, but it will end up being faster--and looking better--in the end. Getting rid of a render-to-texture/full-screen texture stretch and using a hardware cursor will improve performance greatly. Your mouse won't lag if you have a slow computer, too!
In another area, I'll be improving the GUI so that it no longer has to be stretched in order to remain usable. This will mean some of our lovable layouts will...explode...in the process, but it will end up being faster--and looking better--in the end. Getting rid of a render-to-texture/full-screen texture stretch and using a hardware cursor will improve performance greatly. Your mouse won't lag if you have a slow computer, too!


001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.commons.configuration.tree; 018 019 import java.util.List; 020 021 /** 022 *
 023 * Definition of an interface for evaluating keys for hierarchical 024 * configurations. 025 *
 026 *
 027 * An expression engine knows how to map a key for a configuration's 028 * property to a single or a set of configuration nodes. Thus it defines the way 029 * how properties are addressed in this configuration. Methods of a 030 * configuration that have to handle property key (e.g. 031 * {@code getProperty()} or {@code addProperty()} do not interpret 032 * the passed in keys on their own, but delegate this task to an associated 033 * expression engine. This expression engine will then find out, which 034 * configuration nodes are addressed by the key. 035 *
 036 *
 037 * Separating the task of evaluating property keys from the configuration object 038 * has the advantage that many different expression languages (i.e. ways for 039 * querying or setting properties) can be supported. Just set a suitable 040 * implementation of this interface as the configuration's expression engine, 041 * and you can use the syntax provided by this implementation. 042 *
 043 * 044 * @since 1.3 045 * @author Commons 047 * Configuration team 048 * @version $Id: ExpressionEngine.java 1206474 2011-11-26 16:14:09Z oheger $ 049 */ 050 public interface ExpressionEngine 051 { 052 /** 053 * Finds the node(s) that is (are) matched by the specified key. This is the 054 * main method for interpreting property keys. An implementation must 055 * traverse the given root node and its children to find all nodes that are 056 * matched by the given key. If the key is not correct in the syntax 057 * provided by that implementation, it is free to throw a (runtime) 058 * exception indicating this error condition. 059 * 060 * @param root the root node of a hierarchy of configuration nodes 061 * @param key the key to be evaluated 062 * @return a list with the nodes that are matched by the key (should never 063 * be null) 064 */ 065 List<ConfigurationNode> query(ConfigurationNode root, String key); 066 067 /** 068 * Returns the key for the specified node in the expression language 069 * supported by an implementation. This method is called whenever a property 070 * key for a node has to be constructed, e.g. by the 071 * {@link org.apache.commons.configuration.Configuration#getKeys() getKeys()} 072 * method. 073 * 074 * @param node the node, for which the key must be constructed 075 * @param parentKey the key of this node's parent (can be null for 076 * the root node) 077 * @return this node's key 078 */ 079 String nodeKey(ConfigurationNode node, String parentKey); 080 081 /** 082 * Returns information needed for an add operation. This method gets called 083 * when new properties are to be added to a configuration. An implementation 084 * has to interpret the specified key, find the parent node for the new 085 * elements, and provide all information about new nodes to be added. 086 * 087 * @param root the root node 088 * @param key the key for the new property 089 * @return an object with all information needed for the add operation 090 */ 091 NodeAddData prepareAdd(ConfigurationNode root, String key); 092 }


Player Search
{{myLOLUserName}}
Summoner ID: {{mySummonerID}}
Rank: {{myLOLRank}}LP
COMPETITIVE
Wins: {{myLOLRankedWins}}
Win Rate: {{myLOLWinRate}}
Statistics
Unranked Matches
Kills: {{myUnrankedKills}}
Creep Score: {{myUnrankedCS}}
Turret Kills: {{myUnrankedTurretKills}}
Neutral Minion Kills: {{myUnrankedNeutralMinions}}
Assists: {{myUnrankedAssists}}
Ranked Matches
Wins: {{myLOLRankedWins}}
Losses: {{myLOLRankedLosses}}
Kills: {{myRankedKills}}
Creep Score: {{myRankedCS}}
Turret Kills: {{myRankedTurretKills}}
Neutral Minion Kills: {{myRankedNeutralMinions}}
Assists: {{myRankedAssists}}
Player Stats
Total Wins: {{myLOLWins}}
Total Loss: {{myLOLLoss}}
Kills: {{myLOLKills}}
Damage Dealt: {{myLOLTotalDamageDealt}}
Damage Taken: {{myLOLTotalDamageTaken}}
Creep Score: {{myLOLTotalCS}}
Double Kills: {{myLOLTotalDoubleKills}}
Triple Kills: {{myLOLTotalTripleKills}}
Quadra Kills: {{myLOLTotalQuadraKills}}
Penta Kills: {{myLOLTotalPentaKills}}
Unreal Kills: {{myLOLTotalUnrealKills}}
Deaths: {{myLOLTotalDeaths}}
Gold Earned: {{myLOLTotalGoldEarned}}
Turrets Killed: {{myLOLTotalTurretsKilled}}
Physical Damage Dealt: {{myLOLTotalPhysicalDamageDealt}}
Magic Damage Dealt: {{myLOLTotalMagicDamageDealt}}
Neutral Minions Killed: {{myLOLTotalNeutralMinionsKilled}}
First Bloods: {{myLOLTotalFirstBlood}}
Assists: {{myLOLTotalAssists}}
Healing Done: {{myLOLTotalHeal}}
Best/Most in Game
Kills Per Game: {{myLOLMostKillsPerGame}}
Killing Spree: {{maxLargestKillingSpree}}
Champion Kills: {{maxChampionsKilled}}
Deaths: {{maxNumDeaths}}
Time Played: {{maxTimePlayed}}
Time Spent Alive: {{maxTimeSpentLiving}}


GymSafe is a product of Redcliffe Hygiene which was founded in 2017. Redcliffe Hygiene Private Limited is a pioneer in Personal Hygiene space in
India and Globally with 4 products. It is a manufacturer of a range of hygiene consumables in the Indian market as well as the largest seller of toilet hygiene
product in India. In addition, the company sells products into Middle East, Africa, and South East Asia and Pacific region. GymSafe is a Gym Equipment Sanitizer
Spray that kills 99.99% of germs from the gym equipment.
With many using the gym equipment for their dailyworkouts, gym centers tend to be another area where
illness causing bacteria thrive. The running warm machines offer the best environment for the germs to
flourish. They can get on your hands and spread to foods. With many gyms not resorting to proper sanitizing methods of the gym machinery, tainted gyms are
yet another growing breeding grounds for disease causing germs. A report from NATA confirms that you might catch Skin Infections, Cold, Intestinal Infections
because of common Gym Equipment. Therefore, it is imperative to sanitize the equipment to ensure a germ free work-out.
IPA formulation starts sanitizing within a few seconds of application.
Removes 99.99% germs from Gym equipment
Compact and sleek design makes it pocket friendly
Liquid evaporates within 5-7 seconds, leaving no residue behind.
MoskitoSafe is a 100% natural mosquito repellent.
Enriched with natural Citronella and Neem oil and free of alcohol and DEET
Shop Now1st Floor, Plot No C-4, Jal Vayu Vihar Road,
Sector 31, Shrimati Santhosh Yadav Marg,
Gurugram, Haryana, 122001, INDIA
Email<EMAIL_ADDRESS>Phone:0124-4202705


Change Log
All notable changes to this project will be documented in this file. See standard-version for commit guidelines.

2.0.3 (2017-10-17)
Bug Fixes
- configurability of toStringTag (b99f692)

2.0.2 (2017-10-17)
Bug Fixes
- constructor exposure (dbc0c51)
- do not allow non constructor calls (1f2f800)
- toString and toStringTag symbol definitions. (2d17786), closes #6
Changelog for previous versions
See CHANGES
file


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Project Uno
AMAZING PEOPLE ARE MAKING AMAZING DESIGNS IN A FUN ENVIRONMENT.
When you work with us, you are part of a team of committed collaborators. All aspects of our software development process are intergrated, interactive and agile.
Our approach unites design, development an product management to create exceptional products.
We start each project by understanding your business goals, there's needs and the the product requirements.
Then we help translate them into effective and elegant solutions.
Before we sign a contract or write a line of code our team will spend the necessary time needed to understand your product vision.
The outcome of the scoping session is a proposal or high-level statement of work.
Based on your requirements, we can provide a complete offering or just the pieces you need.
Our deign practice offers a full range of services including brand strategy, interaction and visual design and user experience testing.
Throughout your project, our designers create and implement visual design and workflows, solicit user feedback and work with you to make sure what gets built is what is needed.
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they collaborate with your team to write, and improve code on a daily basis, using proven practices such as test-driven development and pair programming.
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@import models.utils.Breadcrumb
@main("Walldee", Breadcrumb("Home", routes.Application.index, true) ::
Nil) {
-
Projects
Define your project and status monitors (like Jenkins, Sonar ...). Usual rule: One project, one display.
-
Teams
Define your teams and sprints. Usual rule: One team, one display.
-
Alarms
Set global alarms for the team.
-
Displays
are the canvas for widgets of one project. Use multiple
Displays for multiple projects to monitor.
-
Wizards
quickly create a display for an existing project in TeamCity.
}


|
CommandLib
Classes that simplify coordination of asynchronous and synchronous activities
|
This class attempts to provide functionality like Windows' WaitForMultipleObjects. It provides a way to efficiently wait upon any number of Waitable objects, until either one or all of the objects enter a signaled state. More...
#include <WaitGroup.h>
Public Member Functions | |
| WaitGroup () | |
| Contructs a WaitGroup More... | |
| void | AddWaitable (Waitable::Ptr waitable) |
| Adds a Waitable to this WaitGroup More... | |
| int | WaitForAny () const |
| Waits until any one of the waitable objects becomes signaled. More... | |
| template<typename Rep , typename Period > | |
| int | WaitForAny (const std::chrono::duration< Rep, Period > &dur) const |
| Waits until any one of the waitable objects becomes signaled. More... | |
| int | WaitForAny (long long ms) const |
| Waits until any one of the waitable objects becomes signaled. More... | |
| void | WaitForAll () const |
| Waits until all of the waitable objects have entered the signaled state. More... | |
| template<typename Rep , typename Period > | |
| bool | WaitForAll (const std::chrono::duration< Rep, Period > &dur) const |
| Waits until all of the waitable objects have entered the signaled state. More... | |
| bool | WaitForAll (long long ms) const |
| Waits until all of the waitable objects are simulataneously signaled. More... | |
This class attempts to provide functionality like Windows' WaitForMultipleObjects. It provides a way to efficiently wait upon any number of Waitable objects, until either one or all of the objects enter a signaled state.
Behavior is undefined if you access the same WaitGroup object across multiple threads.
| CommandLib::WaitGroup::WaitGroup | ( | ) |
Contructs a WaitGroup
| void CommandLib::WaitGroup::AddWaitable | ( | Waitable::Ptr | waitable | ) |
| void CommandLib::WaitGroup::WaitForAll | ( | ) | const |
Waits until all of the waitable objects have entered the signaled state.
Note that this will return after all of the items have been in the signaled at any time since the wait began. This does not wait until the items are simultaneously signaled. For example, if waiting upon two events, and the first becomes signaled, and is then reset, and then the second event becomes signaled, this method will return (even though the two events were never both in the signaled state at the same time).
|
inline |
Waits until all of the waitable objects have entered the signaled state.
| dur | The maximum amount of time to wait |
Note that this will return after all of the items have been in the signaled at any time since the wait began (or the duration elapses). This does not wait until the items are simultaneously signaled. For example, if waiting upon two events, and the first becomes signaled, and is then reset, and then the second event becomes signaled, this method will return (even though the two events were never both in the signaled state at the same time).
| bool CommandLib::WaitGroup::WaitForAll | ( | long long | ms | ) | const |
Waits until all of the waitable objects are simulataneously signaled.
| ms | The maximum amount of milliseconds to wait |
Note that this will return after all of the items have been in the signaled at any time since the wait began, or the duration elapses. This does not wait until the items are simultaneously signaled.For example, if waiting upon two events, and the first becomes signaled, and is then reset, and then the second event becomes signaled, this method will return (even though the two events were never both in the signaled state at the same time).
| int CommandLib::WaitGroup::WaitForAny | ( | ) | const |
Waits until any one of the waitable objects becomes signaled.
If multiple items are simultaneously signaled, this will return the one with the lowest index
|
inline |
Waits until any one of the waitable objects becomes signaled.
| dur | The maximum amount of time to wait |
The index of the first item to become signaled (AddWaitable adds items in sequential order). If none of the items are signaled before the duration elapses, this will return -1.
If multiple items are simultaneously signaled, this will return the one with the lowest index
| int CommandLib::WaitGroup::WaitForAny | ( | long long | ms | ) | const |
Waits until any one of the waitable objects becomes signaled.
| ms | The maximum amount of time to wait |
If multiple items are simultaneously signaled, this will return the one with the lowest index


Ben Simmons: ‘Chemistry is Much Better’ This Season in Philly
by Marcel MutoniTeam chemistry is “much better” in Philadelphia this season, according to Ben Simmons.
Simmons, who hit the first three-pointer of his NBA career Wednesday night, says Sixers teammates “are giving up their time to bond.”
Head coach Brett Brown wants the 23-year-old NBA All-Star bombing away from beyond the arc—”on his time frame”—which is designed to give superstar teammate Joel Embiid more room to operate.
Per ESPN:
“Definitely,” Simmons told ESPN. “The chemistry is much better. Guys are giving up their time to bond.”
There is an unavoidable dissonance between how a team built around Simmons would play compared to a team built around Embiid. The Sixers’ internal data indicates Embiid trails the play on 90% of possessions, Brown says. He cautions Simmons about sprinting Embiid out of the offense. “The game can sometimes run past Joel,” Brown told ESPN last season.
Brown says he has designed plays specifically for Simmons to shoot corner 3s; Simmons had taken none until draining his first career triple against the Knicks Wednesday night. “I want him in the corners,” Brown says. “I want him shooting 3s — on his time frame.”
But if Simmons arrives in the low zone, he needs to stay there, Brown says. “Two inches outside that, and it’s the dead zone,” Brown says. “You’re killing plays. You’re in Joel’s way. You will either be in the corner, or the low zone. Anything else is unacceptable.”
Related Ben Simmons: ‘I’m Confident in Saying I’m Not a Great Shooter’


The MDI shared library is responsible for managing the details of the Sourcery Probe configuration. It uses the same target.maj script as MON. However, CPU information and communication parameters are set via the mdi.cfg configuration file instead of using command line switches. The easiest way to create mdi.cfg is to start MON as described above and then ask MON to create the file for you.
Use the following command to create an mdi.cfg file in your current working directory that matches the configuration in use by MON.
MON> fw mdi mdi.cfg
Note
The mdi.cfg file created in this way supports just one specific Sourcery Probe and target. If you have more than one Sourcery Probe and/or target system, you can edit the mdi.cfg file to define multiple devices and controllers, and then pick the desired configuration for each debug session.


The MkE SDK provides C++ library implementation of the client part of MkE API called libmkeclient
:
Source code documentation:
Examples for the MkE API C++ Client reside in the mkeclient/src/examples directory.
All examples are console applications that report progresss and results to standard output. All examples require IP address or hostname of the sensor as the first parameter.
| Example | Function |
|---|---|
demo_device_state.cpp |
Shows how to connect to sensor and get: • current sensor state • device info • firmware info Also provides an example on how to switch sensor states. |
demo_getframe_sync.cpp |
Shows how to get a point cloud data from sensor using polling method (getting data on demand). It does these steps: • connects to the sensor • switches to MKE_STATE_DEPTH_SENSOR state• gets a frame (via synchronous MkE C++ Client call) • converts frame points to real-world coordinates • prints few data samples to standard output • switches back to MKE_STATE_IDLE state |
demo_getframe_async.cpp |
Show the same as demo_getframe_sync.cpp , only it does so via asynchronous MkE C++ Client call. |
demo_pushframes.cpp |
Shows how to get point cloud data from sensor using pushing method (sensor pushes data). It does these steps: • connects to the sensor • switches to MKE_STATE_DEPTH_SENSOR state• starts frame pushing • processes all incoming frames for a few seconds (data samples are printed to standard output) • stops frame pushing • switches back to MKE_STATE_IDLE state |
demo_device_discovery.cpp |
Shows how to use the SSDP protocol to discover MagikEye sensors on the local network. |
test_latency.cpp |
Simple latency testing example. |
Examples on how to integrate MkE API C++ Client to 3rd party libraries (PCL, Open3D and OpenCV) are separated in client/cpp/mkeclient/src/integration_examples directory, more information on those in:
Tests for verification purposes of the MkE API C++ Client reside in the client/cpp/mkeclient/src/tester directory. More information about these tests:
© 2016-2021 MagikEye Inc.


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