| /* |
| * 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.rocketmq.tools.command.message; |
| |
| import org.apache.commons.cli.Options; |
| import org.apache.commons.cli.CommandLine; |
| import org.apache.commons.cli.Option; |
| import org.apache.rocketmq.common.UtilAll; |
| import org.apache.rocketmq.common.message.MessageDecoder; |
| import org.apache.rocketmq.common.message.MessageExt; |
| import org.apache.rocketmq.remoting.RPCHook; |
| import org.apache.rocketmq.tools.command.SubCommand; |
| import org.apache.rocketmq.tools.command.SubCommandException; |
| |
| import java.io.IOException; |
| import java.io.RandomAccessFile; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.FileChannel; |
| import java.nio.channels.FileChannel.MapMode; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| |
| public class DumpCompactionLogCommand implements SubCommand { |
| @Override |
| public String commandDesc() { |
| return "parse compaction log to message"; |
| } |
| |
| @Override |
| public String commandName() { |
| return "dumpCompactionLog"; |
| } |
| |
| @Override |
| public Options buildCommandlineOptions(Options options) { |
| Option opt = new Option("f", "file", true, "to dump file name"); |
| opt.setRequired(false); |
| options.addOption(opt); |
| |
| return options; |
| } |
| |
| @Override |
| public void execute(CommandLine commandLine, Options options, RPCHook rpcHook) |
| throws SubCommandException { |
| if (commandLine.hasOption("f")) { |
| String fileName = commandLine.getOptionValue("f"); |
| Path filePath = Paths.get(fileName); |
| if (!Files.exists(filePath)) { |
| throw new SubCommandException("file " + fileName + " not exist."); |
| } |
| |
| if (Files.isDirectory(filePath)) { |
| throw new SubCommandException("file " + fileName + " is a directory."); |
| } |
| |
| try { |
| long fileSize = Files.size(filePath); |
| FileChannel fileChannel = new RandomAccessFile(fileName, "rw").getChannel(); |
| ByteBuffer buf = fileChannel.map(MapMode.READ_WRITE, 0, fileSize); |
| |
| int current = 0; |
| while (current < fileSize) { |
| buf.position(current); |
| ByteBuffer bb = buf.slice(); |
| int size = bb.getInt(); |
| if (size > buf.capacity() || size < 0) { |
| break; |
| } else { |
| bb.limit(size); |
| bb.rewind(); |
| } |
| |
| MessageExt messageExt = MessageDecoder.decode(bb, false, false); |
| if (messageExt == null) { |
| break; |
| } else { |
| current += size; |
| System.out.printf(messageExt + "\n"); |
| } |
| } |
| |
| UtilAll.cleanBuffer(buf); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| |
| } else { |
| System.out.print("miss dump log file name\n"); |
| } |
| |
| |
| } |
| } |