Examples of org.rhq.enterprise.communications.command.client.RemoteInputStream

Package org.rhq.enterprise.communications.command.client

Examples of org.rhq.enterprise.communications.command.client.RemoteInputStream

org.rhq.enterprise.communications.command.client.RemoteInputStream
This is an input stream that actually pulls down the stream data from a remote server. Note that this extends InputStream so it can be used as any normal stream object; however, all methods are overridden to actually delegate the methods to the remote stream.
In order to be able to use this object, you should understand how input streams are remoted. First, an input stream must be {@link ServiceContainer#addRemoteInputStream(InputStream) assigned a server-side service component}. At that point, your server is ready to begin accepting remote commands to read the input stream. That's where this object comes in. You instantiate this object by giving its constructor the ID of the stream and the service container where that input stream was registered. Note that, for convienence, the constructor {@link RemoteInputStream#RemoteInputStream(InputStream,ServiceContainer)} is provided to both add the input streamto the server-side services container and instantiate this object with the appropriate stream ID. This {@link RemoteInputStream} object can then be passed to a remote client in some way (typically by serializing it aspart of a {@link Command}). The remote endpoint must then tell this object (after its been deserialized) which {@link #setClientCommandSender(ClientCommandSender) client sender} to use when communicating back to the server(which it needs to do when pulling the stream data). We need that remote endpoint to give this object a sender because its the remote endpoint's job to configure that sender with things like its keystore and truststore locations (when transporting over SSL). In order to configure that client sender, the remote endpoint must create the sender such that it uses the {@link #getServerEndpoint() server endpoint} as its target. After the remote endpoint sets upits sender in this object, it is free to operate on this object as if it were a "normal" InputStream. Note that remote input streams should be {@link #close() closed} in order to clean up server-side resources in atimely manner.
@author John Mazzitelli

        CommandResponse results = null;
        Long stream_id = null;


        try {
            stream_id = agent1.getServiceContainer().addRemoteInputStream(in);
            test_command.setParameterValue(SimpleTestStreamService.INPUT_STREAM_PARAM, new RemoteInputStream(stream_id,
                agent1.getServiceContainer()));


            results = agent1.getClientCommandSender().sendSynch(test_command);
        } catch (Throwable t) {
            throw new Exception(t);

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        assert agent2.isStarted() : "agent2 should have been started";


        String stream_data = "Stream this string to a POJO...";
        InputStream in = new ByteArrayInputStream(stream_data.getBytes());
        Long stream_id = agent1.getServiceContainer().addRemoteInputStream(in);
        InputStream remote_stream = new RemoteInputStream(stream_id, agent1.getServiceContainer());
        ITestStreamPojo pojo = agent1.getClientCommandSender().getClientRemotePojoFactory().getRemotePojo(
            ITestStreamPojo.class);


        // make a call where the stream is the only argument
        String results;

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        assert agent2.isStarted() : "agent2 should have been started";


        String stream_data1 = "FIRST Stream this string to a POJO... 1111111111";
        InputStream in1 = new ByteArrayInputStream(stream_data1.getBytes());
        Long stream_id1 = agent1.getServiceContainer().addRemoteInputStream(in1);
        InputStream remote_stream1 = new RemoteInputStream(stream_id1, agent1.getServiceContainer());


        String stream_data2 = "TWO Stream this string to a POJO... 2222222222";
        InputStream in2 = new ByteArrayInputStream(stream_data2.getBytes());
        Long stream_id2 = agent1.getServiceContainer().addRemoteInputStream(in2);
        InputStream remote_stream2 = new RemoteInputStream(stream_id2, agent1.getServiceContainer());


        ITestStreamPojo pojo = agent1.getClientCommandSender().getClientRemotePojoFactory().getRemotePojo(
            ITestStreamPojo.class);


        String[] results;

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        assert agent2.isStarted() : "agent2 should have been started";


        String stream_data = "Stream this string to a POJO over SSL...";
        InputStream in = new ByteArrayInputStream(stream_data.getBytes());
        Long stream_id = agent1.getServiceContainer().addRemoteInputStream(in);
        InputStream remote_stream = new RemoteInputStream(stream_id, agent1.getServiceContainer());
        ITestStreamPojo pojo = agent1.getClientCommandSender().getClientRemotePojoFactory().getRemotePojo(
            ITestStreamPojo.class);


        // make a call where the stream is a middle argument
        String results;

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        GenericCommand test_command = new GenericCommand(SimpleTestStreamService.COMMAND_TYPE, null);
        CommandResponse results = null;
        Long stream_id = null;


        try {
            test_command.setParameterValue(SimpleTestStreamService.INPUT_STREAM_PARAM, new RemoteInputStream(in, agent1
                .getServiceContainer()));


            results = agent1.getClientCommandSender().sendSynch(test_command);
        } catch (Throwable t) {
            throw new Exception(ThrowableUtil.getAllMessages(t), t);

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        CommandResponse results = null;
        Long stream_id = null;


        try {
            test_command.setParameterValue(SimpleTestStreamService.RETURN_COUNT_ONLY_PARAM, "");
            test_command.setParameterValue(SimpleTestStreamService.INPUT_STREAM_PARAM, new RemoteInputStream(in, agent1
                .getServiceContainer()));


            results = agent1.getClientCommandSender().sendSynch(test_command);
        } catch (Throwable t) {
            throw new Exception(ThrowableUtil.getAllMessages(t), t);

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        assert agent1.isStarted() : "agent1 should have been started";
        assert agent2.isStarted() : "agent2 should have been started";


        InputStream in = new ByteArrayInputStream(LARGE_STRING_BYTES);
        Long stream_id = agent1.getServiceContainer().addRemoteInputStream(in);
        InputStream remote_stream = new RemoteInputStream(stream_id, agent1.getServiceContainer());
        ITestStreamPojo pojo = agent1.getClientCommandSender().getClientRemotePojoFactory().getRemotePojo(
            ITestStreamPojo.class);


        // make a call where the stream is the only argument
        String results;

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        assert agent1.isStarted() : "agent1 should have been started";
        assert agent2.isStarted() : "agent2 should have been started";


        InputStream in = new ByteArrayInputStream(LARGE_STRING_BYTES);
        Long stream_id = agent1.getServiceContainer().addRemoteInputStream(in);
        InputStream remote_stream = new RemoteInputStream(stream_id, agent1.getServiceContainer());
        ITestStreamPojo pojo = agent1.getClientCommandSender().getClientRemotePojoFactory().getRemotePojo(
            ITestStreamPojo.class);


        // make a call where the stream is the only argument
        String results;

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        Preferences preferencesNode = topNode.node("commstream2test");
        return preferencesNode;
    }


    private InputStream prepareRemoteStreamInServer1(InputStream in) throws Exception {
        return new RemoteInputStream(in, serviceContainer1);
    }

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        return new RemoteOutputStream(out, serviceContainer1);
    }


    // package scoped so it can be used by the pojo class
    InputStream prepareRemoteStreamInServer2(InputStream in) throws Exception {
        return new RemoteInputStream(in, serviceContainer2);
    }

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