| /* |
| * 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.HostRoleCommand; |
| import org.apache.ambari.server.actionmanager.HostRoleStatus; |
| import org.apache.ambari.server.agent.CommandReport; |
| import org.apache.ambari.server.api.services.AmbariMetaInfo; |
| import org.apache.ambari.server.orm.dao.ArtifactDAO; |
| import org.apache.ambari.server.orm.entities.ArtifactEntity; |
| 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.StackId; |
| import org.apache.ambari.server.state.kerberos.KerberosDescriptor; |
| import org.apache.ambari.server.state.kerberos.KerberosDescriptorFactory; |
| import org.apache.ambari.server.state.kerberos.KerberosDescriptorUpdateHelper; |
| import org.apache.ambari.server.state.stack.upgrade.Direction; |
| import org.apache.commons.lang.StringUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.TreeMap; |
| import java.util.concurrent.ConcurrentMap; |
| |
| /** |
| * Update the user-defined Kerberos Descriptor to work with the current stack. |
| * |
| * @see org.apache.ambari.server.state.kerberos.KerberosDescriptorUpdateHelper |
| */ |
| public class UpgradeUserKerberosDescriptor extends AbstractServerAction { |
| private static final Logger LOG = LoggerFactory.getLogger(UpgradeUserKerberosDescriptor.class); |
| |
| /** |
| * The upgrade direction. |
| * |
| * @see Direction |
| */ |
| private static final String UPGRADE_DIRECTION_KEY = "upgrade_direction"; |
| |
| /** |
| * The original "current" stack of the cluster before the upgrade started. |
| * This is the same regardless of whether the current direction is |
| * {@link Direction#UPGRADE} or {@link Direction#DOWNGRADE}. |
| * |
| * @see Direction |
| */ |
| private static final String ORIGINAL_STACK_KEY = "original_stack"; |
| |
| /** |
| * The target upgrade stack before the upgrade started. This is the same |
| * regardless of whether the current direction is {@link Direction#UPGRADE} or |
| * {@link Direction#DOWNGRADE}. |
| * |
| * @see Direction |
| */ |
| private static final String TARGET_STACK_KEY = "target_stack"; |
| |
| @Inject |
| private ArtifactDAO artifactDAO; |
| |
| @Inject |
| private Clusters clusters; |
| |
| @Inject |
| private AmbariMetaInfo ambariMetaInfo; |
| |
| @Inject |
| private KerberosDescriptorFactory kerberosDescriptorFactory; |
| |
| protected UpgradeUserKerberosDescriptor() { |
| } |
| |
| /** |
| * Update Kerberos Descriptor Storm properties when upgrading to Storm 1.0 |
| * <p/> |
| * Finds the relevant artifact entities and iterates through them to process each independently. |
| */ |
| @Override |
| public CommandReport execute(ConcurrentMap<String, Object> requestSharedDataContext) |
| throws AmbariException, InterruptedException { |
| HostRoleCommand hostRoleCommand = getHostRoleCommand(); |
| String clusterName = hostRoleCommand.getExecutionCommandWrapper().getExecutionCommand().getClusterName(); |
| Cluster cluster = clusters.getCluster(clusterName); |
| List<String> messages = new ArrayList<String>(); |
| List<String> errorMessages = new ArrayList<String>(); |
| |
| if (cluster != null) { |
| logMessage(messages, "Obtaining the user-defined Kerberos descriptor"); |
| |
| TreeMap<String, String> foreignKeys = new TreeMap<String, String>(); |
| foreignKeys.put("cluster", String.valueOf(cluster.getClusterId())); |
| |
| ArtifactEntity entity = artifactDAO.findByNameAndForeignKeys("kerberos_descriptor", foreignKeys); |
| KerberosDescriptor userDescriptor = (entity == null) ? null : kerberosDescriptorFactory.createInstance(entity.getArtifactData()); |
| |
| if (userDescriptor != null) { |
| StackId originalStackId = getStackIdFromCommandParams(ORIGINAL_STACK_KEY); |
| StackId targetStackId = getStackIdFromCommandParams(TARGET_STACK_KEY); |
| boolean isDowngrade = isDowngrade(); |
| |
| StackId newVersion = (isDowngrade) ? originalStackId : targetStackId; |
| StackId previousVersion = (isDowngrade) ? targetStackId : originalStackId; |
| KerberosDescriptor newDescriptor = null; |
| KerberosDescriptor previousDescriptor = null; |
| |
| if (newVersion == null) { |
| logErrorMessage(messages, errorMessages, "The new stack version information was not found."); |
| } else { |
| logMessage(messages, String.format("Obtaining new stack Kerberos descriptor for %s.", newVersion.toString())); |
| newDescriptor = ambariMetaInfo.getKerberosDescriptor(newVersion.getStackName(), newVersion.getStackVersion()); |
| |
| if (newDescriptor == null) { |
| logErrorMessage(messages, errorMessages, String.format("The Kerberos descriptor for the new stack version, %s, was not found.", newVersion.toString())); |
| } |
| } |
| |
| if (previousVersion == null) { |
| logErrorMessage(messages, errorMessages, "The previous stack version information was not found."); |
| } else { |
| logMessage(messages, String.format("Obtaining previous stack Kerberos descriptor for %s.", previousVersion.toString())); |
| previousDescriptor = ambariMetaInfo.getKerberosDescriptor(previousVersion.getStackName(), previousVersion.getStackVersion()); |
| |
| if (newDescriptor == null) { |
| logErrorMessage(messages, errorMessages, String.format("The Kerberos descriptor for the previous stack version, %s, was not found.", previousVersion.toString())); |
| } |
| } |
| |
| if (errorMessages.isEmpty()) { |
| logMessage(messages, "Updating the user-specified Kerberos descriptor."); |
| |
| KerberosDescriptor updatedDescriptor = KerberosDescriptorUpdateHelper.updateUserKerberosDescriptor( |
| previousDescriptor, |
| newDescriptor, |
| userDescriptor); |
| |
| logMessage(messages, "Storing updated user-specified Kerberos descriptor."); |
| |
| entity.setArtifactData(updatedDescriptor.toMap()); |
| artifactDAO.merge(entity); |
| |
| logMessage(messages, "Successfully updated the user-specified Kerberos descriptor."); |
| } |
| } else { |
| logMessage(messages, "A user-specified Kerberos descriptor was not found. No updates are necessary."); |
| } |
| } else { |
| logErrorMessage(messages, errorMessages, String.format("The cluster named %s was not found.", clusterName)); |
| } |
| |
| if (!errorMessages.isEmpty()) { |
| logErrorMessage(messages, errorMessages, "No updates have been performed due to previous issues."); |
| } |
| |
| return createCommandReport(0, HostRoleStatus.COMPLETED, "{}", StringUtils.join(messages, "\n"), StringUtils.join(errorMessages, "\n")); |
| } |
| |
| /** |
| * Determines if upgrade direction is {@link Direction#UPGRADE} or {@link Direction#DOWNGRADE}. |
| * |
| * @return {@code true} if {@link Direction#DOWNGRADE}; {@code false} if {@link Direction#UPGRADE} |
| */ |
| private boolean isDowngrade() { |
| return Direction.DOWNGRADE.name().equalsIgnoreCase(getCommandParameterValue(UPGRADE_DIRECTION_KEY)); |
| } |
| |
| private StackId getStackIdFromCommandParams(String commandParamKey) { |
| String stackId = getCommandParameterValue(commandParamKey); |
| if (stackId == null) { |
| return null; |
| } else { |
| return new StackId(stackId); |
| } |
| } |
| |
| private void logMessage(List<String> messages, String message) { |
| LOG.info(message); |
| messages.add(message); |
| } |
| |
| private void logErrorMessage(List<String> messages, List<String> errorMessages, String message) { |
| LOG.error(message); |
| messages.add(message); |
| errorMessages.add(message); |
| } |
| } |