| /* |
| * 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.ambari.server.serveraction.upgrades; |
| |
| import com.google.inject.Inject; |
| import org.apache.ambari.server.AmbariException; |
| import org.apache.ambari.server.actionmanager.HostRoleStatus; |
| import org.apache.ambari.server.agent.CommandReport; |
| import org.apache.ambari.server.serveraction.AbstractServerAction; |
| import org.apache.ambari.server.state.Cluster; |
| import org.apache.ambari.server.state.Clusters; |
| import org.apache.ambari.server.state.Config; |
| |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentMap; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Changes oozie-env during upgrade (adds -Dhdp.version to $HADOOP_OPTS variable) |
| */ |
| public class OozieConfigCalculation extends AbstractServerAction { |
| private static final String TARGET_CONFIG_TYPE = "oozie-env"; |
| private static final String CONTENT_PROPERTY_NAME = "content"; |
| |
| @Inject |
| private Clusters clusters; |
| |
| @Override |
| public CommandReport execute(ConcurrentMap<String, Object> requestSharedDataContext) |
| throws AmbariException, InterruptedException { |
| String clusterName = getExecutionCommand().getClusterName(); |
| Cluster cluster = clusters.getCluster(clusterName); |
| Config config = cluster.getDesiredConfigByType(TARGET_CONFIG_TYPE); |
| |
| if (config == null) { |
| return createCommandReport(0, HostRoleStatus.FAILED,"{}", |
| String.format("Source type %s not found", TARGET_CONFIG_TYPE), ""); |
| } |
| |
| Map<String, String> properties = config.getProperties(); |
| String oldContent = properties.get(CONTENT_PROPERTY_NAME); |
| |
| String newContent = processPropertyValue(oldContent); |
| |
| if (newContent.equals(oldContent)) { |
| return createCommandReport(0, HostRoleStatus.COMPLETED, "{}", |
| "-Dhdp.version option has been already added to $HADOOP_OPTS variable", ""); |
| } else { |
| properties.put(CONTENT_PROPERTY_NAME, newContent); |
| } |
| |
| config.setProperties(properties); |
| config.persist(false); |
| |
| return createCommandReport(0, HostRoleStatus.COMPLETED, "{}", |
| String.format("Added -Dhdp.version to $HADOOP_OPTS variable at %s", TARGET_CONFIG_TYPE), ""); |
| |
| } |
| |
| public static String processPropertyValue(String oldContent) { |
| // For regex simplicity, will not work with multiline export definitions that are |
| // split on few strings using \ character |
| // False negative should be a less bit of trouble (just duplicate exports/option definitions) |
| // than false positive (broken Oozie after upgrade) |
| Pattern regex = Pattern.compile("^export HADOOP_OPTS=.*-Dhdp.version=.*$", Pattern.MULTILINE); |
| Matcher regexMatcher = regex.matcher(oldContent); |
| if (regexMatcher.find()) { |
| return oldContent; |
| } else { |
| StringBuilder newContent = new StringBuilder(oldContent); |
| newContent.append("\n").append( |
| "export HADOOP_OPTS=\"-Dhdp.version=$HDP_VERSION $HADOOP_OPTS\" " |
| ); |
| return newContent.toString(); |
| } |
| } |
| } |