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ActiveMQ example source code file (TransportSupport.java)

This example ActiveMQ source code file (TransportSupport.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

assertionerror, assertionerror, io, ioexception, ioexception, logger, method, method, net, network, not, object, responsecallback, t, transportlistener, unsupported, unsupported

The ActiveMQ TransportSupport.java source code

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.activemq.transport;

import java.io.IOException;
import java.net.URI;
import org.apache.activemq.util.ServiceSupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A useful base class for transport implementations.
 * 
 * 
 */
public abstract class TransportSupport extends ServiceSupport implements Transport {
    private static final Logger LOG = LoggerFactory.getLogger(TransportSupport.class);

    TransportListener transportListener;

    /**
     * Returns the current transport listener
     */
    public TransportListener getTransportListener() {
        return transportListener;
    }

    /**
     * Registers an inbound command listener
     * 
     * @param commandListener
     */
    public void setTransportListener(TransportListener commandListener) {
        this.transportListener = commandListener;
    }

    /**
     * narrow acceptance
     * 
     * @param target
     * @return 'this' if assignable
     */
    public <T> T narrow(Class target) {
        boolean assignableFrom = target.isAssignableFrom(getClass());
        if (assignableFrom) {
            return target.cast(this);
        }
        return null;
    }

    public FutureResponse asyncRequest(Object command, ResponseCallback responseCallback) throws IOException {
        throw new AssertionError("Unsupported Method");
    }

    public Object request(Object command) throws IOException {
        throw new AssertionError("Unsupported Method");
    }

    public Object request(Object command, int timeout) throws IOException {
        throw new AssertionError("Unsupported Method");
    }

    /**
     * Process the inbound command
     */
    public void doConsume(Object command) {
        if (command != null) {
            if (transportListener != null) {
                transportListener.onCommand(command);
            } else {
                LOG.error("No transportListener available to process inbound command: " + command);
            }
        }
    }

    /**
     * Passes any IO exceptions into the transport listener
     */
    public void onException(IOException e) {
        if (transportListener != null) {
            try {
                transportListener.onException(e);
            } catch (RuntimeException e2) {
                // Handle any unexpected runtime exceptions by debug logging
                // them.
                LOG.debug("Unexpected runtime exception: " + e2, e2);
            }
        }
    }

    protected void checkStarted() throws IOException {
        if (!isStarted()) {
            throw new IOException("The transport is not running.");
        }
    }

    public boolean isFaultTolerant() {
        return false;
    }

    public void reconnect(URI uri) throws IOException {
        throw new IOException("Not supported");
    }

    public boolean isReconnectSupported() {
        return false;
    }

    public boolean isUpdateURIsSupported() {
        return false;
    }
    public void updateURIs(boolean reblance,URI[] uris) throws IOException {
        throw new IOException("Not supported");
    }

    public boolean isDisposed() {
        return isStopped();
    }

    public boolean isConnected() {
        return isStarted();
    }

}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ TransportSupport.java source code file:

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