Examples of org.eclipse.ecf.remoteservice.IRemoteService

org.eclipse.ecf.remoteservice.IRemoteService
Interface providing runtime access to a remote service. An instance implementing this interface will be returned from the IRemoteServiceContainerAdapter.getRemoteService(IRemoteServiceReference) and may then be used to communicate with a remote service. The methods on this interface support accessing the remote service in several ways:
- callSync -- A synchronous invocation that will block the calling thread until complete (or timeout) and return the result from the remote or throw exception if remote invocation fails or throws exception
- callAsync/1 -- An asynchronous invocation that will not block the caller thread but rather return a non-null {@link IFuture} instancethat can be polled for results. See {@link IFuture#get()}, {@link IFuture#get(long)}, and {@link IFuture#isDone()}. timeout, exception, or successful completion)
- callAsync/2 -- An asynchronous invocation that will not block the caller thread but rather notify the given listener asynchronously when complete (via timeout, exception, or successful completion)
- fireAsync -- An asynchronous invocation that will simply execute the remote method asynchronously, but will not provide any response or remote method failure information
- getProxy -- Access to a local proxy for the remote service that will expose the appropriate interface to the caller, and synchronously call the remote methods when invoked. For example:

        .getService(remoteReferences[0]);


    assertProxyValid(proxy);
    
    // Get IRemoteService from proxy
    final IRemoteService remoteService = getRemoteServiceFromProxy(proxy);


    // Call remote service synchronously
    final Object result = remoteService.callSync(createRemoteCall());
    Trace.trace(Activator.PLUGIN_ID, "proxy.doStuff1 result=" + result);
    assertStringResultValid(result, TestServiceInterface1.TEST_SERVICE_STRING1);
  }

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    assertReferencesValidAndFirstHasCorrectType(remoteReferences, classname);


    final Object o = remoteReferences[0].getProperty(RemoteConstants.SERVICE_IMPORTED);
    assertNotNull(o);
    assertTrue(o instanceof IRemoteService);
    final IRemoteService rs = (IRemoteService) o;


    // Call synchronously
    final Object result = rs.callSync(createRemoteCall());
    Trace.trace(Activator.PLUGIN_ID, "callSync.doStuff1 result=" + result);
    assertStringResultValid(result, TestServiceInterface1.TEST_SERVICE_STRING1);
  }

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    assertReferencesValid(remoteReferences);


    final Object o = remoteReferences[0].getProperty(RemoteConstants.SERVICE_IMPORTED);
    assertNotNull(o);
    assertTrue(o instanceof IRemoteService);
    final IRemoteService rs = (IRemoteService) o;
    // Call asynchronously
    rs.callAsync(createRemoteCall(), new IRemoteCallListener() {
      public void handleEvent(final IRemoteCallEvent event) {
        if (event instanceof IRemoteCallCompleteEvent) {
          final Object result = ((IRemoteCallCompleteEvent) event)
              .getResponse();
          Trace.trace(Activator.PLUGIN_ID,

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    assertReferencesValid(remoteReferences);


    final Object o = remoteReferences[0].getProperty(RemoteConstants.SERVICE_IMPORTED);
    assertNotNull(o);
    assertTrue(o instanceof IRemoteService);
    final IRemoteService rs = (IRemoteService) o;
    // Call asynchronously
    final IFuture futureResult = rs.callAsync(createRemoteCall());


    // now get result from futureResult
    final Object result = futureResult.get();
    Trace.trace(Activator.PLUGIN_ID, "callSync.doStuff1 result=" + result);
    assertStringResultValid(result, TestServiceInterface1.TEST_SERVICE_STRING1);

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    assertReferencesValid(remoteReferences);


    final Object o = remoteReferences[0].getProperty(RemoteConstants.SERVICE_IMPORTED);
    assertNotNull(o);
    assertTrue(o instanceof IRemoteService);
    final IRemoteService rs = (IRemoteService) o;
    // Call asynchronously
    rs.fireAsync(createRemoteCall());
    Thread.sleep(REGISTER_WAIT);
  }

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        e.printStackTrace();
      }
    }
    
    // It's also possible to get the remote service directly from the proxy
    IRemoteService remoteService = ((IRemoteServiceProxy) proxy).getRemoteService();
    Assert.isNotNull(remoteService);
    
    // In this case, we will make an non-blocking call and immediately get a 'future'...which is
    // a placeholder for a result of the remote computation.  This will not block.
    System.out.println("STARTING async remote call via future...");

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        adapter = getRestClientContainerAdapter();


        adapter.setResponseDeserializer(new SyndFeedResponseDeserializer());


        IRemoteService restClientService = adapter.getRemoteService(registerCall().getReference());


        asyncCall(restClientService);
    }

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    }
    
    // OSGi 4.2 remote service spec requires a property named 'service.imported' to be
    // set to a non-null value.  In the case of any ECF provider, this 'service.imported' property
    // is set to the IRemoteService object associated with the remote service.
    IRemoteService remoteService = (IRemoteService) reference
        .getProperty(IDistributionConstants.SERVICE_IMPORTED);
    Assert.isNotNull(remoteService);
    
    // This IRemoteService instance allows allows non-blocking/asynchronous invocation of
    // remote methods.  This allows the client to decide (at runtime if necessary) whether

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            container.getConnectNamespace(), ROSGI_SERVICE_HOST),
            IHello.class.getName(), null);
    Assert.isNotNull(helloReferences);
    Assert.isTrue(helloReferences.length > 0);
    // 4. Get remote service for reference
    IRemoteService remoteService = containerAdapter
        .getRemoteService(helloReferences[0]);
    // 5. Get the proxy
    IHello proxy = (IHello) remoteService.getProxy();
    // 6. Finally...call the proxy
    proxy.hello("RemoteService Consumer");


    // Call asynchronously via listener
    callViaListener(remoteService);

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        .getService(remoteReferences[0]);


    assertProxyValid(proxy);
    
    // Get IRemoteService from proxy
    final IRemoteService remoteService = getRemoteServiceFromProxy(proxy);


    // Call remote service synchronously
    final Object result = remoteService.callSync(createRemoteCall());
    Trace.trace(Activator.PLUGIN_ID, "proxy.doStuff1 result=" + result);
    assertStringResultValid(result, TestServiceInterface1.TEST_SERVICE_STRING1);
    endTest("testCallSyncFromProxy");
  }

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