org.springframework.yarn.client.CommandYarnClient.java Source code

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Here is the source code for org.springframework.yarn.client.CommandYarnClient.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.client;

import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.springframework.yarn.YarnSystemConstants;

/**
 * Default Yarn client utilising functionality in {@link AbstractYarnClient}.
 *
 * @author Janne Valkealahti
 *
 */
public class CommandYarnClient extends AbstractYarnClient {

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

    /**
     * Constructs a default client with a given template.
     *
     * @param clientRmOperations the client to resource manager template
     */
    public CommandYarnClient(ClientRmOperations clientRmOperations) {
        super(clientRmOperations);
    }

    @Override
    public Map<String, String> getEnvironment() {
        // For the environment we set additional env variables
        // from configuration. This is most useful for unit
        // testing where resource manager and hdfs are created 
        // dynamically within mini clusters.
        Map<String, String> env = super.getEnvironment();
        env.put(YarnSystemConstants.RM_ADDRESS, getConfiguration().get(YarnConfiguration.RM_ADDRESS));
        env.put(YarnSystemConstants.FS_ADDRESS,
                getConfiguration().get(CommonConfigurationKeysPublic.FS_DEFAULT_NAME_KEY));
        env.put(YarnSystemConstants.SCHEDULER_ADDRESS,
                getConfiguration().get(YarnConfiguration.RM_SCHEDULER_ADDRESS));
        if (log.isDebugEnabled()) {
            log.debug("Setting additional env variables " + YarnSystemConstants.RM_ADDRESS + "="
                    + env.get(YarnSystemConstants.RM_ADDRESS) + YarnSystemConstants.FS_ADDRESS + "="
                    + env.get(YarnSystemConstants.FS_ADDRESS) + YarnSystemConstants.SCHEDULER_ADDRESS + "="
                    + env.get(YarnSystemConstants.SCHEDULER_ADDRESS));
        }
        return env;
    }

}