| /* |
| * 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.admin.internal; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.InputStream; |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.geode.internal.admin.ApplicationVM; |
| import org.apache.geode.internal.admin.GemFireVM; |
| import org.apache.geode.internal.admin.GfManagerAgent; |
| import org.apache.geode.internal.logging.MergeLogFiles; |
| |
| public class LogCollator { |
| |
| private GfManagerAgent system; |
| private List<Loglet> logTails; |
| |
| public LogCollator() {} |
| |
| public String collateLogs(GfManagerAgent system) { |
| try { |
| if (system == null) { |
| return ""; |
| } |
| this.system = system; |
| this.logTails = new ArrayList<>(); |
| gatherActiveLogs(); |
| gatherInactiveLogs(); |
| return mergeLogs(); |
| } finally { |
| this.system = null; |
| this.logTails = null; |
| } |
| } |
| |
| // ------------------------------------------------------------------------- |
| |
| private String mergeLogs() { |
| // combine logs... |
| Map<String, InputStream> logFiles = new HashMap<>(); |
| for (int i = 0; i < this.logTails.size(); i++) { |
| Loglet loglet = this.logTails.get(i); |
| logFiles.put(loglet.name, new ByteArrayInputStream(loglet.tail.getBytes())); |
| } |
| |
| // delegate to MergeLogFiles... |
| StringWriter writer = new StringWriter(); |
| PrintWriter mergedLog = new PrintWriter(writer); |
| if (!MergeLogFiles.mergeLogFiles(logFiles, mergedLog)) { |
| return writer.toString(); |
| } else { |
| return ""; |
| } |
| } |
| |
| private void gatherActiveLogs() { |
| ApplicationVM[] runningsApps = this.system.listApplications(); |
| for (int i = 0; i < runningsApps.length; i++) { |
| addLogFrom(runningsApps[i]); |
| } |
| } |
| |
| private void gatherInactiveLogs() { |
| /* |
| * not yet supported.... if (useStopped) { LogViewHelper helper = new LogViewHelper(); for |
| * (Iterator iter = stoppedNodes.iterator(); iter.hasNext(); ) { Object adminEntity = |
| * iter.next(); helper.setAdminEntity(adminEntity); try { if (helper.logViewAvailable()) { |
| * String[] logs = helper.getSystemLogs(); addTail(allTails, logs, adminEntity.toString()); } } |
| * catch (Exception e) { Service.getService().reportSystemError(e); } } } |
| */ |
| } |
| |
| private void addLogFrom(GemFireVM vm) { |
| String name = null; |
| name = vm.toString(); |
| String[] logs = vm.getSystemLogs(); |
| addTail(name, logs); |
| } |
| |
| private void addTail(String logName, String[] logs) { |
| if (logs.length > 0) { |
| String tail = (logs.length > 1) ? logs[1] : logs[0]; |
| this.logTails.add(new Loglet(logName, tail)); |
| } |
| } |
| |
| /* |
| * public void setUseStoppedManagers(boolean useStopped) { this.useStopped = useStopped; } |
| */ |
| |
| private static class Loglet { |
| String name; |
| String tail; |
| |
| Loglet(String name, String tail) { |
| this.name = name; |
| this.tail = tail; |
| } |
| } |
| |
| } |