| /* |
| * 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.ratis.shell.cli.sh.local; |
| |
| import org.apache.commons.cli.CommandLine; |
| import org.apache.commons.cli.Option; |
| import org.apache.commons.cli.Options; |
| import org.apache.ratis.proto.RaftProtos.LogEntryProto; |
| import org.apache.ratis.proto.RaftProtos.RaftConfigurationProto; |
| import org.apache.ratis.proto.RaftProtos.RaftPeerProto; |
| import org.apache.ratis.proto.RaftProtos.RaftPeerRole; |
| import org.apache.ratis.protocol.RaftPeerId; |
| import org.apache.ratis.shell.cli.RaftUtils; |
| import org.apache.ratis.shell.cli.sh.command.AbstractCommand; |
| import org.apache.ratis.shell.cli.sh.command.Context; |
| import org.apache.ratis.thirdparty.com.google.protobuf.ByteString; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.InetSocketAddress; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Files; |
| import java.nio.file.Paths; |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Command for generate a new raft-meta.conf file based on original raft-meta.conf and new peers, |
| * which is used to move a raft node to a new node. |
| */ |
| public class RaftMetaConfCommand extends AbstractCommand { |
| public static final String PEER_OPTION_NAME = "peers"; |
| public static final String PATH_OPTION_NAME = "path"; |
| |
| private static final String RAFT_META_CONF = "raft-meta.conf"; |
| private static final String NEW_RAFT_META_CONF = "new-raft-meta.conf"; |
| |
| private static final String SEPARATOR = "\\|"; |
| /** |
| * @param context command context |
| */ |
| public RaftMetaConfCommand(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public String getCommandName() { |
| return "raftMetaConf"; |
| } |
| |
| @Override |
| public int run(CommandLine cl) throws IOException { |
| String peersStr = cl.getOptionValue(PEER_OPTION_NAME); |
| String path = cl.getOptionValue(PATH_OPTION_NAME); |
| if (peersStr == null || path == null || peersStr.isEmpty() || path.isEmpty()) { |
| printf("peers or path can't be empty."); |
| return -1; |
| } |
| Set<String> addresses = new HashSet<>(); |
| Set<String> ids = new HashSet<>(); |
| List<RaftPeerProto> raftPeerProtos = new ArrayList<>(); |
| for (String idWithAddress : peersStr.split(",")) { |
| String[] peerIdWithAddressArray = idWithAddress.split(SEPARATOR); |
| |
| if (peerIdWithAddressArray.length < 1 || peerIdWithAddressArray.length > 2) { |
| String message = |
| "Failed to parse peer's ID and address for: %s, " + |
| "from option: -peers %s. \n" + |
| "Please make sure to provide list of peers" + |
| " in format <[P0_ID|]P0_HOST:P0_PORT,[P1_ID|]P1_HOST:P1_PORT,[P2_ID|]P2_HOST:P2_PORT>"; |
| printf(message, idWithAddress, peersStr); |
| return -1; |
| } |
| InetSocketAddress inetSocketAddress = parseInetSocketAddress( |
| peerIdWithAddressArray[peerIdWithAddressArray.length - 1]); |
| String addressString = inetSocketAddress.getHostString() + ":" + inetSocketAddress.getPort(); |
| if (addresses.contains(addressString)) { |
| printf("Found duplicated address: %s. Please make sure the address of peer have no duplicated value.", |
| addressString); |
| return -1; |
| } |
| addresses.add(addressString); |
| |
| String peerId; |
| if (peerIdWithAddressArray.length == 2) { |
| // Peer ID is provided |
| peerId = RaftPeerId.getRaftPeerId(peerIdWithAddressArray[0]).toString(); |
| |
| if (ids.contains(peerId)) { |
| printf("Found duplicated ID: %s. Please make sure the ID of peer have no duplicated value.", peerId); |
| return -1; |
| } |
| ids.add(peerId); |
| } else { |
| // If peer ID is not provided, use host address as peerId value |
| peerId = RaftUtils.getPeerId(inetSocketAddress).toString(); |
| } |
| |
| raftPeerProtos.add(RaftPeerProto.newBuilder() |
| .setId(ByteString.copyFrom(peerId.getBytes(StandardCharsets.UTF_8))) |
| .setAddress(addressString) |
| .setStartupRole(RaftPeerRole.FOLLOWER).build()); |
| } |
| try (InputStream in = Files.newInputStream(Paths.get(path, RAFT_META_CONF)); |
| OutputStream out = Files.newOutputStream(Paths.get(path, NEW_RAFT_META_CONF))) { |
| long index = LogEntryProto.newBuilder().mergeFrom(in).build().getIndex(); |
| println("Index in the original file is: " + index); |
| LogEntryProto generateLogEntryProto = LogEntryProto.newBuilder() |
| .setConfigurationEntry(RaftConfigurationProto.newBuilder() |
| .addAllPeers(raftPeerProtos).build()) |
| .setIndex(index + 1).build(); |
| printf("Generate new LogEntryProto info is:\n" + generateLogEntryProto); |
| generateLogEntryProto.writeTo(out); |
| } |
| return 0; |
| } |
| |
| @Override |
| public String getUsage() { |
| return String.format("%s" |
| + " -%s <[P0_ID|]P0_HOST:P0_PORT,[P1_ID|]P1_HOST:P1_PORT,[P2_ID|]P2_HOST:P2_PORT>" |
| + " -%s <PARENT_PATH_OF_RAFT_META_CONF>", |
| getCommandName(), PEER_OPTION_NAME, PATH_OPTION_NAME); |
| } |
| |
| @Override |
| public String getDescription() { |
| return description(); |
| } |
| |
| @Override |
| public Options getOptions() { |
| return new Options() |
| .addOption( |
| Option.builder() |
| .option(PEER_OPTION_NAME) |
| .hasArg() |
| .required() |
| .desc("Peer addresses seperated by comma") |
| .build()) |
| .addOption( |
| Option.builder() |
| .option(PATH_OPTION_NAME) |
| .hasArg() |
| .required() |
| .desc("The parent path of raft-meta.conf") |
| .build()); |
| } |
| |
| /** |
| * @return command's description |
| */ |
| public static String description() { |
| return "Generate a new raft-meta.conf file based on original raft-meta.conf and new peers."; |
| } |
| } |
| |