org.springframework.yarn.examples.XdAppmasterRunner.java Source code

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Here is the source code for org.springframework.yarn.examples.XdAppmasterRunner.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.yarn.examples;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.ApplicationListener;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.event.ContextClosedEvent;
import org.springframework.web.context.support.XmlWebApplicationContext;
import org.springframework.xd.dirt.container.DefaultContainer;
import org.springframework.xd.dirt.stream.StreamServer;
import org.springframework.yarn.YarnSystemConstants;
import org.springframework.yarn.am.CommandLineAppmasterRunner;
import org.springframework.yarn.am.track.UrlAppmasterTrackService;

/**
 * Custom command line runner for XD Yarn Application Master.
 * This is needed order to manually setup Web Application
 * Context needed my XD Admin build-in mvc layer.
 *
 * @author Janne Valkealahti
 *
 */
public class XdAppmasterRunner extends CommandLineAppmasterRunner {

    private final static Log log = LogFactory.getLog(XdAppmasterRunner.class);

    @Override
    protected ConfigurableApplicationContext getChildApplicationContext(String configLocation,
            ConfigurableApplicationContext parent) {

        log.info("Using xd.transport=" + System.getProperty("xd.transport"));
        log.info("Using xd.store=" + System.getProperty("xd.store"));
        log.info("Using xd.home=" + System.getProperty("xd.home"));

        XmlWebApplicationContext context = new XmlWebApplicationContext();
        context.setConfigLocation("classpath:" + DefaultContainer.XD_INTERNAL_CONFIG_ROOT + "admin-server.xml");

        final StreamServer server = new StreamServer(context, 8282);
        server.afterPropertiesSet();
        server.start();

        // when we get fix for 0-port trick in spring-xd
        //log.info("Streamserver tomcat port=" + server.getLocalPort());

        // context is already refreshed so just register singleton
        // not really a proper way to do it but serves the demo purpose
        // if streamserver could choose free port then below would
        // make much more sense
        parent.getBeanFactory().registerSingleton(YarnSystemConstants.DEFAULT_ID_AMTRACKSERVICE,
                new UrlAppmasterTrackService("http://localhost:" + server.getPort()));

        context.addApplicationListener(new ApplicationListener<ContextClosedEvent>() {
            @Override
            public void onApplicationEvent(ContextClosedEvent event) {
                server.stop();
            }
        });

        return context;
    }

    public static void main(String[] args) {
        new XdAppmasterRunner().doMain(args);
    }

}