org.springframework.yarn.boot.app.YarnShutdownApplication.java Source code

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Here is the source code for org.springframework.yarn.boot.app.YarnShutdownApplication.java

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/*
 * Copyright 2014-2015 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.boot.app;

import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ApplicationReport;
import org.apache.hadoop.yarn.util.ConverterUtils;
import org.springframework.boot.actuate.autoconfigure.EndpointAutoConfiguration;
import org.springframework.boot.actuate.autoconfigure.EndpointMBeanExportAutoConfiguration;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.batch.BatchAutoConfiguration;
import org.springframework.boot.autoconfigure.jmx.JmxAutoConfiguration;
import org.springframework.boot.autoconfigure.web.EmbeddedServletContainerAutoConfiguration;
import org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;
import org.springframework.yarn.YarnSystemConstants;
import org.springframework.yarn.boot.SpringApplicationCallback;
import org.springframework.yarn.boot.SpringApplicationTemplate;
import org.springframework.yarn.boot.support.SpringYarnBootUtils;
import org.springframework.yarn.client.YarnClient;

/**
 * A Boot application which is used to shutdown YARN application gracefully.
 *
 * @author Janne Valkealahti
 *
 */
@Configuration
@EnableAutoConfiguration(exclude = { EmbeddedServletContainerAutoConfiguration.class, WebMvcAutoConfiguration.class,
        JmxAutoConfiguration.class, BatchAutoConfiguration.class, JmxAutoConfiguration.class,
        EndpointMBeanExportAutoConfiguration.class, EndpointAutoConfiguration.class })
public class YarnShutdownApplication extends AbstractClientApplication<String, YarnShutdownApplication> {

    public String run() {
        return run(new String[0]);
    }

    @Override
    public String run(String... args) {
        SpringApplicationBuilder builder = new SpringApplicationBuilder();
        builder.web(false);
        builder.sources(YarnShutdownApplication.class, OperationProperties.class);
        SpringYarnBootUtils.addSources(builder, sources.toArray(new Object[0]));
        SpringYarnBootUtils.addProfiles(builder, profiles.toArray(new String[0]));
        SpringYarnBootUtils.addApplicationListener(builder, appProperties);

        SpringApplicationTemplate template = new SpringApplicationTemplate(builder);
        return template.execute(new SpringApplicationCallback<String>() {

            @Override
            public String runWithSpringApplication(ApplicationContext context) throws Exception {
                OperationProperties operationProperties = context.getBean(OperationProperties.class);
                ApplicationId applicationId = ConverterUtils
                        .toApplicationId(operationProperties.getApplicationId());
                YarnClient client = context.getBean(YarnClient.class);
                ApplicationReport report = client.getApplicationReport(applicationId);
                String trackingUrl = report.getOriginalTrackingUrl();

                RestTemplate restTemplate = context.getBean(YarnSystemConstants.DEFAULT_ID_RESTTEMPLATE,
                        RestTemplate.class);
                restTemplate.postForObject(trackingUrl + "/shutdown", null, Void.class);
                return "shutdown requested";
            }

        }, args);

    }

    @Override
    protected YarnShutdownApplication getThis() {
        return this;
    }

    @ConfigurationProperties(value = "spring.yarn.internal.YarnShutdownApplication")
    public static class OperationProperties {
        String applicationId;

        public void setApplicationId(String applicationId) {
            this.applicationId = applicationId;
        }

        public String getApplicationId() {
            return applicationId;
        }
    }

}