| /* |
| * 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.geode.management.internal.cli.commands; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.Path; |
| import java.util.Collection; |
| import java.util.Set; |
| |
| import org.springframework.shell.core.annotation.CliCommand; |
| import org.springframework.shell.core.annotation.CliOption; |
| |
| import org.apache.geode.distributed.DistributedMember; |
| import org.apache.geode.distributed.internal.deadlock.DeadlockDetector; |
| import org.apache.geode.distributed.internal.deadlock.Dependency; |
| import org.apache.geode.distributed.internal.deadlock.DependencyGraph; |
| import org.apache.geode.distributed.internal.deadlock.GemFireDeadlockDetector; |
| import org.apache.geode.management.cli.CliMetaData; |
| import org.apache.geode.management.cli.GfshCommand; |
| import org.apache.geode.management.internal.cli.CliAroundInterceptor; |
| import org.apache.geode.management.internal.cli.GfshParseResult; |
| import org.apache.geode.management.internal.cli.i18n.CliStrings; |
| import org.apache.geode.management.internal.cli.result.model.InfoResultModel; |
| import org.apache.geode.management.internal.cli.result.model.ResultModel; |
| import org.apache.geode.management.internal.security.ResourceOperation; |
| import org.apache.geode.security.ResourcePermission; |
| |
| public class ShowDeadlockCommand extends GfshCommand { |
| @CliCommand(value = CliStrings.SHOW_DEADLOCK, help = CliStrings.SHOW_DEADLOCK__HELP) |
| @CliMetaData(relatedTopic = {CliStrings.TOPIC_GEODE_DEBUG_UTIL}, |
| interceptor = "org.apache.geode.management.internal.cli.commands.ShowDeadlockCommand$Interceptor") |
| @ResourceOperation(resource = ResourcePermission.Resource.CLUSTER, |
| operation = ResourcePermission.Operation.READ) |
| public ResultModel showDeadlock(@CliOption(key = CliStrings.SHOW_DEADLOCK__DEPENDENCIES__FILE, |
| help = CliStrings.SHOW_DEADLOCK__DEPENDENCIES__FILE__HELP, |
| mandatory = true) String filename) { |
| |
| ResultModel result = new ResultModel(); |
| try { |
| if (!filename.endsWith(".txt")) { |
| return ResultModel.createError( |
| CliStrings.format(CliStrings.INVALID_FILE_EXTENSION, ".txt")); |
| } |
| Set<DistributedMember> allMembers = getAllMembers(); |
| GemFireDeadlockDetector gfeDeadLockDetector = new GemFireDeadlockDetector(allMembers); |
| DependencyGraph dependencyGraph = gfeDeadLockDetector.find(); |
| Collection<Dependency> deadlock = dependencyGraph.findCycle(); |
| DependencyGraph deepest = null; |
| if (deadlock == null) { |
| deepest = dependencyGraph.findLongestCallChain(); |
| if (deepest != null) { |
| deadlock = deepest.getEdges(); |
| } |
| } |
| Set<Dependency> dependencies = (Set<Dependency>) dependencyGraph.getEdges(); |
| |
| InfoResultModel infoResult = result.addInfo(); |
| |
| if (deadlock != null) { |
| if (deepest != null) { |
| infoResult.addLine(CliStrings.SHOW_DEADLOCK__DEEPEST_FOUND); |
| } else { |
| infoResult.addLine(CliStrings.SHOW_DEADLOCK__DEADLOCK__DETECTED); |
| } |
| infoResult.addLine(DeadlockDetector.prettyFormat(deadlock)); |
| } else { |
| infoResult.addLine(CliStrings.SHOW_DEADLOCK__NO__DEADLOCK); |
| } |
| result.addFile(filename, DeadlockDetector.prettyFormat(dependencies)); |
| } catch (Exception e) { |
| result = ResultModel.createError(CliStrings.SHOW_DEADLOCK__ERROR + " : " + e.getMessage()); |
| } |
| |
| return result; |
| } |
| |
| public static class Interceptor implements CliAroundInterceptor { |
| @Override |
| public ResultModel postExecution(GfshParseResult parseResult, ResultModel resultModel, |
| Path tempFile) throws IOException { |
| String saveAs = |
| parseResult.getParamValueAsString(CliStrings.SHOW_DEADLOCK__DEPENDENCIES__FILE); |
| |
| File file = new File(saveAs).getAbsoluteFile(); |
| resultModel.saveFileTo(file.getParentFile()); |
| return resultModel; |
| } |
| } |
| |
| } |