org.osgi.framework.ServiceFactory Java Examples

The following examples show how to use org.osgi.framework.ServiceFactory. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: ServiceReferenceImpl.java From AtlasForAndroid with MIT License

6 votes

boolean ungetService(Bundle bundle) {
    synchronized (this.useCounters) {
        if (this.service == null) {
            return false;
        }
        Integer num = (Integer) this.useCounters.get(bundle);
        if (num == null) {
            return false;
        } else if (num.intValue() == 1) {
            this.useCounters.remove(bundle);
            if (this.isServiceFactory) {
                ((ServiceFactory) this.service).ungetService(bundle, this.registration, this.cachedServices.get(bundle));
                this.cachedServices.remove(bundle);
            }
            return false;
        } else {
            this.useCounters.put(bundle, Integer.valueOf(num.intValue() - 1));
            return true;
        }
    }
}

Example #2

Source File: Activator.java From knopflerfish.org with BSD 3-Clause "New" or "Revised" License

6 votes

/**
 * DOCUMENT ME!
 *
 * @param context DOCUMENT ME!
 *
 * @throws BundleException DOCUMENT ME!
 */
public void start(BundleContext context) throws BundleException {
    ensureSecurityManager();
    this.bc = context;

    try {
        O2J = new Osgi2Jini();
        O2J.open();
    } catch (Exception o2j) {
        Debug.printDebugInfo(10, "OSGi to Jini bridge not started", o2j);
    }

    try {
        J2O = new JiniServiceFactory();
        jiniServiceFactory = bc.registerService("org.osgi.service.jini.JiniDriver",
                (ServiceFactory) J2O, null);
    } catch (Exception j2o) {
        Debug.printDebugInfo(10, "Jini to OSGi bridge not started", j2o);
    }
}

Example #3

Source File: ServiceReferenceImpl.java From AtlasForAndroid with MIT License

5 votes

ServiceReferenceImpl(Bundle bundle, Object obj, Dictionary<String, ?> dictionary, String[] strArr) {
    this.useCounters = new HashMap(0);
    this.cachedServices = null;
    if (obj instanceof ServiceFactory) {
        this.isServiceFactory = true;
    } else {
        this.isServiceFactory = false;
        checkService(obj, strArr);
    }
    this.bundle = bundle;
    this.service = obj;
    this.properties = dictionary == null ? new Hashtable() : new Hashtable(dictionary.size());
    if (dictionary != null) {
        Enumeration keys = dictionary.keys();
        while (keys.hasMoreElements()) {
            String str = (String) keys.nextElement();
            this.properties.put(str, dictionary.get(str));
        }
    }
    this.properties.put(Constants.OBJECTCLASS, strArr);
    Dictionary dictionary2 = this.properties;
    String str2 = Constants.SERVICE_ID;
    long j = nextServiceID + 1;
    nextServiceID = j;
    dictionary2.put(str2, Long.valueOf(j));
    Integer num = dictionary == null ? null : (Integer) dictionary.get(Constants.SERVICE_RANKING);
    this.properties.put(Constants.SERVICE_RANKING, Integer.valueOf(num == null ? 0 : num.intValue()));
    this.registration = new ServiceRegistrationImpl();
}

Example #4

Source File: BundleContextImpl.java From knopflerfish.org with BSD 3-Clause "New" or "Revised" License

5 votes

/**
 * Registers the specified service factory object with the specified
 * properties under the name of the specified class with the Framework.
 *
 * @see org.osgi.framework.BundleContext#registerService
 */
public <S> ServiceRegistration<S> registerService(Class<S> clazz,
                                                  ServiceFactory<S> factory,
                                                  Dictionary<String, ?> properties)
{
  @SuppressWarnings("unchecked")
  final ServiceRegistration<S> res = (ServiceRegistration<S>)
      registerService(clazz == null ? null
                                    : clazz.getName(),factory,properties);
  return res;
}

Example #5

Source File: PermissionOps.java From knopflerfish.org with BSD 3-Clause "New" or "Revised" License

5 votes

<S> void callUngetService(final ServiceRegistrationImpl<S> sr,
                          final Bundle b,
                          final S instance)
{
  @SuppressWarnings("unchecked")
  final ServiceFactory<S> srf = (ServiceFactory<S>)sr.service;
  srf.ungetService(b, sr, instance);
}

Example #6

Source File: ServiceReferenceImpl.java From concierge with Eclipse Public License 1.0

5 votes

S factorService(final Bundle theBundle, boolean count){
	@SuppressWarnings("unchecked")
	final ServiceFactory<S> factory = (ServiceFactory<S>) service;
	final S factoredService;
	try {
		if(count)
			incrementCounter(theBundle);
		marker = true;
		factoredService = factory.getService(theBundle,
				registration);
		marker = false;
		checkService(factoredService,
				(String[]) properties.get(Constants.OBJECTCLASS));
		// catch failed check and exceptions thrown in factory
	} catch (final IllegalArgumentException iae) {
		if(count)
			decrementCounter(theBundle);
		framework.notifyFrameworkListeners(FrameworkEvent.ERROR,
				bundle, new ServiceException(
						"Invalid service object",
						ServiceException.FACTORY_ERROR));
		return null;
	} catch (final Throwable t) {
		if(count)
			decrementCounter(theBundle);
		framework.notifyFrameworkListeners(FrameworkEvent.ERROR,
				bundle, new ServiceException(
						"Exception while factoring the service",
						ServiceException.FACTORY_EXCEPTION, t));
		return null;
	}
	
	return factoredService;
}

Example #7

Source File: SecurePermissionOps.java From knopflerfish.org with BSD 3-Clause "New" or "Revised" License

5 votes

@Override
<S> void callUngetService(final ServiceRegistrationImpl<S> sr,
                          final Bundle b,
                          final S instance)
{
  @SuppressWarnings("unchecked")
  final ServiceFactory<S> srf = (ServiceFactory<S>) sr.service;
  AccessController.doPrivileged(new PrivilegedAction<Object>() {
    public Object run()
    {
      srf.ungetService(b, sr, instance);
      return null;
    }
  });
}

Example #8

Source File: ServiceReferenceImpl.java From concierge with Eclipse Public License 1.0

5 votes

public void ungetService(S s) {
	if(isPrototype){
		if(services.remove(s)) {
			try {
				final ServiceFactory<S> factory = (ServiceFactory<S>) service;
				factory.ungetService(b, (ServiceRegistration<S>) registration, s);
			} catch (final Throwable t) {
				framework.notifyFrameworkListeners(
					FrameworkEvent.ERROR, b, t);
			}
			if(services.size() == 0){
				if(useCounters.get(b) == 0){
					useCounters.remove(b);
				}
			}
		} else {
			throw new IllegalArgumentException("Service object was not provided "
				+ "by this ServiceObjects instance");
		}
	} else {
		// in case of bundle scope, only unget if this is from the right bundle
		if(isServiceFactory) { 
			if(s != cachedServices.get(b)){
				throw new IllegalArgumentException("Service object was not provided "
						+ "by this ServiceObjects instance");
			}
		}
		ServiceReferenceImpl.this.ungetService(b);
	}
}

Example #9

Source File: SecurePermissionOps.java From knopflerfish.org with BSD 3-Clause "New" or "Revised" License

5 votes

@Override
<S> S callGetService(final ServiceRegistrationImpl<S> sr, final Bundle b)
{
  return AccessController.doPrivileged(new PrivilegedAction<S>() {
    public S run()
    {
      @SuppressWarnings("unchecked")
      final ServiceFactory<S> srf = (ServiceFactory<S>) sr.service;
      return srf.getService(b, sr);
    }
  });
}

Example #10

Source File: Concierge.java From concierge with Eclipse Public License 1.0

4 votes

@SuppressWarnings("unchecked")
public <S> ServiceRegistration<S> registerService(final Class<S> clazz,
		final ServiceFactory<S> factory, final Dictionary<String, ?> properties) {
	return (ServiceRegistration<S>) registerService(clazz.getName(), 
			factory, properties);
}

Example #11

Source File: PermissionOps.java From knopflerfish.org with BSD 3-Clause "New" or "Revised" License

4 votes

<S> S callGetService(final ServiceRegistrationImpl<S> sr, final Bundle b) {
  @SuppressWarnings("unchecked")
  final ServiceFactory<S> srf = (ServiceFactory<S>)sr.service;
  return srf.getService(b, sr);
}

Example #12

Source File: Services.java From knopflerfish.org with BSD 3-Clause "New" or "Revised" License

4 votes

/**
 * Register a service in the framework wide register.
 *
 * @param bundle The bundle registering the service.
 * @param classes The class names under which the service can be located.
 * @param service The service object.
 * @param properties The properties for this service.
 * @return A {@link ServiceRegistration} object.
 * @exception java.lang.IllegalArgumentException If one of the following is true:
 * <ul>
 * <li>The service object is null.</li>
 * <li>The defining class of the service parameter is not owned by the bundle.</li>
 * <li>The service parameter is not a ServiceFactory and is not an
 * instance of all the named classes in the classes parameter.</li>
 * </ul>
 */
@SuppressWarnings("deprecation")
ServiceRegistration<?> register(BundleImpl bundle,
                                String[] classes,
                                Object service,
                                Dictionary<String, ?> properties)
{
  if (service == null) {
    throw new IllegalArgumentException("Can't register null as a service");
  }
  String scope;
  if (service instanceof ServiceFactory) {
    scope = service instanceof PrototypeServiceFactory ? Constants.SCOPE_PROTOTYPE : Constants.SCOPE_BUNDLE;
  } else {
    scope = Constants.SCOPE_SINGLETON;
  }
  // Check if service implements claimed classes and that they exist.
  for (final String cls : classes) {
    if (cls == null) {
      throw new IllegalArgumentException("Can't register as null class");
    }
    secure.checkRegisterServicePerm(cls);
    if (bundle.id != 0) {
      if (cls.equals(org.osgi.service.packageadmin.PackageAdmin.class.getName())) {
        throw new IllegalArgumentException
          ("Registeration of a PackageAdmin service is not allowed");
      }
      if (cls.equals(PermissionAdmin.class.getName())) {
        throw new IllegalArgumentException
          ("Registeration of a PermissionAdmin service is not allowed");
      }
      if (cls.equals(ConditionalPermissionAdmin.class.getName())) {
        throw new IllegalArgumentException
          ("Registeration of a ConditionalPermissionAdmin service is not allowed");
      }
    }
    if (scope == Constants.SCOPE_SINGLETON) {
      if (!checkServiceClass(service, cls)) {
        throw new IllegalArgumentException
          ("Service object is not an instance of " + cls);
      }
    }
  }

  @SuppressWarnings("rawtypes")
  final ServiceRegistrationImpl<?> res =
    new ServiceRegistrationImpl(bundle, service, scope,
                                new PropertiesDictionary(properties, classes, null, new Long(bundle.id), scope));
  synchronized (this) {
    services.put(res, classes);
    for (final String clazz : classes) {
      List<ServiceRegistrationImpl<?>> s
        = classServices.get(clazz);
      if (s == null) {
        s = new ArrayList<ServiceRegistrationImpl<?>>(1);
        classServices.put(clazz, s);
      }
      final int ip = Math.abs(Util.binarySearch(s, sComp, res) + 1);
      s.add(ip, res);
    }
  }
  final ServiceReference<?> r = res.getReference();
  bundle.fwCtx.perm
    .callServiceChanged(bundle.fwCtx,
                        bundle.fwCtx.listeners.getMatchingServiceListeners(r),
                        new ServiceEvent(ServiceEvent.REGISTERED, r),
                        null);
  return res;
}

Example #13

Source File: ServiceReferenceImpl.java From knopflerfish.org with BSD 3-Clause "New" or "Revised" License

4 votes

public boolean isAssignableTo(Bundle bundle, String className) {
  final BundleImpl sBundle = registration.bundle;
  if (sBundle == null) {
      throw new IllegalStateException("Service is unregistered");
  }
  final FrameworkContext fwCtx = sBundle.fwCtx;
  if (((BundleImpl)bundle).fwCtx != fwCtx) {
    throw new IllegalArgumentException("Bundle is not from same framework as service");
  }
  // Check if bootdelegated
  if (fwCtx.isBootDelegated(className)) {
    return true;
  }
  final int pos = className.lastIndexOf('.');
  if (pos != -1) {
    final String name = className.substring(0, pos);
    final Pkg p = fwCtx.resolver.getPkg(name);
    // Is package exported by a bundle
    if (p != null) {
      final BundlePackages rbp = sBundle.current().bpkgs;
      final BundlePackages pkgExporter = rbp.getProviderBundlePackages(name);
      List<BundleGeneration> pkgProvider;
      if (pkgExporter == null) {
        // Package not imported by provide, is it required
        pkgProvider = rbp.getRequiredBundleGenerations(name);
      } else {
        pkgProvider = new ArrayList<BundleGeneration>(1);
        pkgProvider.add(pkgExporter.bg);
      }
      final BundlePackages bb = ((BundleImpl)bundle).current().bpkgs;
      final BundlePackages bbp = bb.getProviderBundlePackages(name);
      List<BundleGeneration> pkgConsumer;
      if (bbp == null) {
        // Package not imported by bundle, is it required
        pkgConsumer = bb.getRequiredBundleGenerations(name);
      } else {
        pkgConsumer = new ArrayList<BundleGeneration>(1);
        pkgConsumer.add(bbp.bg);
      }
      if (pkgConsumer == null) {
        // NYI! Check dynamic import?
        if (bb.isExported(name)) {
          // If bundle only exports package, then return true if
          // bundle is provider.
          return pkgProvider!=null ? pkgProvider.contains(bb.bg) : true;
        } else {
          // If bundle doesn't import or export package, then return true and
          // assume that the bundle only uses reflection to access service.
          return true;
        }
      } else if (pkgProvider == null) {
        // Package not imported by registrar. E.g. proxy registration.
        final Object sService = registration.service;
        if (sService == null) {
          throw new IllegalStateException("Service is unregistered");
        }
        if (sService instanceof ServiceFactory) {
          // Factory, allow.
          return true;
        } else {
          // Use the classloader of bundle to load the class, then check
          // if the service's class is assignable.
          final ClassLoader bCL = bb.getClassLoader();
          if (bCL!=null) {
            try {
              final Class<?> bCls = bCL.loadClass(className);
              // NYI, Handle Service Factories.
              return bCls.isAssignableFrom(sService.getClass());
            } catch (final Exception e) {
              // If we can not load, assume that we are just a proxy.
              return true;
            }
          }
        }
        // Fallback: Always OK when singleton provider of the package
      } else { // Package imported by both parties
        // Return true if we have same provider as service.
        for (final Object element : pkgProvider) {
          if (pkgConsumer.contains(element)) {
            return true;
          }
        }
      }
    } else {
      // Not a package under package control. System package?
      if (name.startsWith("java.") || sBundle == bundle) {
        return true;
      } else {
        // NYI! We have a private service, check if bundle can use it.
        // Now, allow it to handle reflection of service.
        return true;
      }
    }
  }
  return false;
}

Example #14

Source File: Netbinox.java From netbeans with Apache License 2.0

4 votes

@Override
public <S> ServiceRegistration<S> registerService(Class<S> type, ServiceFactory<S> sf, Dictionary<String, ?> dctnr) {
    return delegate.registerService(type, sf, dctnr);
}

Example #15

Source File: ServiceReferenceImpl.java From concierge with Eclipse Public License 1.0

4 votes

/**
 * unget the service.
 * 
 * @param theBundle
 *            the using bundle.
 * @return <tt>false</tt> if the context bundle's use count for the service
 *         is zero or if the service has been unregistered; <tt>true</tt>
 *         otherwise.
 */
@SuppressWarnings("unchecked")
boolean ungetService(final Bundle theBundle) {
	synchronized (useCounters) {
		if (service == null) {
			return false;
		}
		Integer counter = useCounters.get(theBundle);
		if (counter == null) {
			return false;
		}
		if (counter.intValue() == 1) {
			if (isServiceFactory) {
				try {
					((ServiceFactory<S>) service).ungetService(theBundle,
							registration, cachedServices.get(theBundle));
					// catch exceptions thrown in factory
				} catch (final Throwable t) {
					framework.notifyFrameworkListeners(
							FrameworkEvent.ERROR, bundle, t);
				}
				cachedServices.remove(theBundle);
			} 
			if(isPrototype){
				// check if there is a serviceobjects that could also have used service instances
				if(serviceObjects != null){
					ServiceObjectsImpl so = serviceObjects.get(theBundle);
					if(so != null){
						if(so.services.size() != 0){
							useCounters.put(theBundle, new Integer(0));
							return true;
						}
					}
				}
			}			
			useCounters.remove(theBundle);
			return true;
		} else if(counter.intValue()== 0){
			// prototype services in use don't count here...
			return false;
		} else {
			counter = new Integer(counter.intValue() - 1);
			useCounters.put(theBundle, counter);
			return true;
		}
	}
}

Example #16

Source File: ServiceReferenceImpl.java From concierge with Eclipse Public License 1.0

4 votes

/**
 * create a new service reference implementation instance.
 * 
 * @param bundle
 *            the bundle.
 * @param service
 *            the service object.
 * @param props
 *            the service properties.
 * @param clazzes
 *            the interface classes that the service is registered under.
 * @throws ClassNotFoundException
 */
ServiceReferenceImpl(final Concierge framework, final Bundle bundle,
		final S service, final Dictionary<String, ?> props,
		final String[] clazzes) {
	String scope = "singleton";
	if (service instanceof PrototypeServiceFactory) {
		isServiceFactory = true;
		isPrototype = true;
		scope = "prototype";
	} else if(service instanceof ServiceFactory) {
		isServiceFactory = true;
		isPrototype = false;
		scope = "bundle";
	} else {
		isServiceFactory = false;
		isPrototype = false;
		checkService(service, clazzes);
	}

	this.framework = framework;
	this.bundle = bundle;
	this.service = service;
	this.properties = new HashMap<String, Object>(props == null ? 5
			: props.size() + 5);
	if (props != null) {
		for (final Enumeration<String> keys = props.keys(); keys
				.hasMoreElements();) {
			final String key = keys.nextElement();
			properties.put(key, props.get(key));
		}
	}
	properties.put(Constants.OBJECTCLASS, clazzes);
	properties.put(Constants.SERVICE_BUNDLEID, bundle.getBundleId());
	properties.put(Constants.SERVICE_ID, new Long(++nextServiceID));
	final Integer ranking = props == null ? null : (Integer) props
			.get(Constants.SERVICE_RANKING);
	properties.put(Constants.SERVICE_RANKING,
			ranking == null ? new Integer(0) : ranking);
	properties.put(Constants.SERVICE_SCOPE, scope);
	this.registration = new ServiceRegistrationImpl();
}

Example #17