Examples of org.osgi.framework.BundleContext.ungetService()

org.osgi.framework.BundleContext.ungetService()
Releases the service object for the service referenced by the specified {@code ServiceReference} object. If the context bundle's use count forthe service is zero, this method returns {@code false}. Otherwise, the context bundle's use count for the service is decremented by one.
The service object must no longer be used and all references to it should be destroyed when a bundle's use count for the service drops to zero.
The following steps are required to release the service object:
1. If the context bundle's use count for the service is zero or the service has been unregistered, {@code false} is returned.
2. The context bundle's use count for the service is decremented by one.
3. If the context bundle's use count for the service is now zero and the service has {@link Constants#SCOPE_BUNDLE bundle} or{@link Constants#SCOPE_PROTOTYPE prototype} scope, the{@link ServiceFactory#ungetService(Bundle,ServiceRegistration,Object)}method is called to release the service object for the context bundle.
4. {@code true} is returned.
@param reference A reference to the service to be released. @return {@code false} if the context bundle's use count for the serviceis zero or if the service has been unregistered; {@code true}otherwise. @throws IllegalStateException If this BundleContext is no longer valid. @throws IllegalArgumentException If the specified{@code ServiceReference} was not created by the same frameworkinstance as this {@code BundleContext}. @see #getService(ServiceReference) @see ServiceFactory

        } catch (InvalidSyntaxException e) {
            LOGGER.error("Syntax error looking up service {} using filter {}", EventHandler.class.getName(), EventHandler.MANAGED_FILTER);
        } finally {
            if (references != null) {
                for (ServiceReference ref : references) {
                    bundleContext.ungetService(ref);
                }
            }
        }
        return result;
    }

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                Bundle bundle = ref.getBundle();
                if (bundle != null) {
                    BundleContext ctx = getBundleContextForServiceLookup();
                    if (ctx != null) {
                      try {
                          ctx.ungetService(ref);
                      } catch (IllegalStateException ise) {
                        // we don't care it doesn't exist so, shrug.
                      }
                    }
                }

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            BundleContext context = framework.getBundleContext();
            ServiceReference[] references = context.getServiceReferences(ManagementAgentFactory.class.getName(), null);
            if (references != null) {
                ManagementAgentFactory service = (ManagementAgentFactory) context.getService(references[0]);
                service.updated(m_configuration);
                context.ungetService(references[0]);
            }
            else {
                System.err.println("Can not find Management Agent config service! Aborting..");
                System.exit(1);
            }

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        Object service = ctx.getService(ref);
        if (service != null) {
          className = service.getClass().getName();
        }


        ctx.ungetService(ref);
        
        return new NameClassPair(serviceId, className, true);
      }


      public void release(BundleContext ctx, ServiceReference ref)

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        return new Binding(serviceId, service, true);
      }


      public void release(BundleContext ctx, ServiceReference ref)
      {
        ctx.ungetService(ref);
      }
    });
  }


  public Object lookup(Name name) throws NamingException

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                try {
                    if (target instanceof Function) {
                        function = (Function) target;
                    }
                } finally {
                    context.ungetService(reference);
                }
            }
        } catch (Throwable t) {
        }
        return function;

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  private void ungetService(String serviceClassName, String filter) {
    BundleContext bundleContext = fTestBundle.getBundleContext();
    ServiceReference reference = getServiceReference(bundleContext, serviceClassName, filter);
    if (reference != null) {
      bundleContext.ungetService(reference);
    }
  }
  
  private ServiceReference getServiceReference(BundleContext bundleContext, String serviceClassName, String filter) {
    if (filter == null || filter.equals("")) {

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                    if (target instanceof Function) {
                        return unProxy((Function) target);
                    }
                } finally {
                    if (context != null) {
                        context.ungetService(reference);
                    }
                }
            }
            Bundle bundle = FrameworkUtil.getBundle(CommandsCompleter.class);
            BundleContext bc = bundle.getBundleContext();

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            if (pm != null) {
                Callable call = pm.unwrap(function);
                if (call != null) {
                    return unProxy((Function) call.call());
                }
                bc.ungetService(ref);
            }
        } catch (Throwable t) {
        }
        return function;
    }

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        assertNotSame("The proxy should not be the same object as the original service", testService, proxyService);
        assertEquals("Doing it", proxyService.doit());


        EasyMock.reset(clientBC);
        EasyMock.expect(clientBC.ungetService(sr)).andReturn(true).once();
        EasyMock.replay(clientBC);


        proxyServiceSF.ungetService(clientBundle, null, proxyService);


        EasyMock.verify(clientBC);

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