org.springframework.xd.dirt.launcher.RabbitContainerLauncher.java Source code

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Here is the source code for org.springframework.xd.dirt.launcher.RabbitContainerLauncher.java

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/*
 * Copyright 2013 the original author or authors.
 *
 * Licensed 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.springframework.xd.dirt.launcher;

import java.util.UUID;

import org.apache.commons.logging.Log;

import org.springframework.amqp.AmqpConnectException;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.util.Assert;
import org.springframework.xd.dirt.container.XDContainer;
import org.springframework.xd.dirt.server.options.ContainerOptions;
import org.springframework.xd.dirt.server.util.BannerUtils;

/**
 * @author Mark Fisher
 * @author David Turanski
 */
public class RabbitContainerLauncher extends AbstractContainerLauncher {

    private final ConnectionFactory connectionFactory;

    public RabbitContainerLauncher(ConnectionFactory connectionFactory) {
        Assert.notNull(connectionFactory, "connectionFactory must not be null");
        this.connectionFactory = connectionFactory;
    }

    @Override
    protected String generateId() {
        return UUID.randomUUID().toString();
    }

    @Override
    public void logContainerInfo(Log logger, XDContainer container, ContainerOptions options) {
        if (logger.isInfoEnabled()) {
            final StringBuilder runtimeInfo = new StringBuilder();
            runtimeInfo.append(String.format("Using RabbitMQ at %s (virtual host: %s) on port: %d ",
                    this.connectionFactory.getHost(), this.connectionFactory.getVirtualHost(),
                    this.connectionFactory.getPort()));
            if (options.isJmxEnabled()) {
                runtimeInfo.append(String.format(" JMX port: %d", options.getJmxPort()));
            } else {
                runtimeInfo.append(" JMX is disabled for XD components");
            }
            logger.info(BannerUtils.displayBanner(container.getJvmName(), runtimeInfo.toString()));
        }
    }

    @Override
    protected void logErrorInfo(Exception exception) {
        if (exception instanceof AmqpConnectException) {
            System.err.println("RabbitMQ does not seem to be running. " + "Did you install and start RabbitMQ? "
                    + "Please see the Getting Started section of the guide for instructions.");
        }
    }

}