/**
* 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.zookeeper.server;
import java.io.File;
import java.net.InetSocketAddress;
import java.util.Arrays;
import org.apache.zookeeper.server.quorum.QuorumPeerConfig;
import org.apache.zookeeper.server.quorum.QuorumPeerConfig.ConfigException;
/**
* Server configuration storage.
*
* We use this instead of Properties as it's typed.
*
*/
public class ServerConfig {
////
//// If you update the configuration parameters be sure
//// to update the "conf" 4letter word
////
protected InetSocketAddress clientPortAddress;
protected File dataDir;
protected File dataLogDir;
protected int tickTime = ZooKeeperServer.DEFAULT_TICK_TIME;
protected int maxClientCnxns;
/** defaults to -1 if not set explicitly */
protected int minSessionTimeout = -1;
/** defaults to -1 if not set explicitly */
protected int maxSessionTimeout = -1;
/**
* Parse arguments for server configuration
* @param args clientPort dataDir and optional tickTime
* @return ServerConfig configured wrt arguments
* @throws IllegalArgumentException on invalid usage
*/
public void parse(String[] args) {
if (args.length < 2 || args.length > 4) {
throw new IllegalArgumentException("Invalid args:"
+ Arrays.toString(args));
}
clientPortAddress = new InetSocketAddress(Integer.parseInt(args[0]));
dataDir = new File(args[1]);
dataLogDir = dataDir;
if (args.length == 3) {
tickTime = Integer.parseInt(args[2]);
}
if (args.length == 4) {
maxClientCnxns = Integer.parseInt(args[3]);
}
}
/**
* Parse a ZooKeeper configuration file
* @param path the patch of the configuration file
* @return ServerConfig configured wrt arguments
* @throws ConfigException error processing configuration
*/
public void parse(String path) throws ConfigException {
QuorumPeerConfig config = new QuorumPeerConfig();
config.parse(path);
// let qpconfig parse the file and then pull the stuff we are
// interested in
readFrom(config);
}
/**
* Read attributes from a QuorumPeerConfig.
* @param config
*/
public void readFrom(QuorumPeerConfig config) {
clientPortAddress = config.getClientPortAddress();
dataDir = config.getDataDir();
dataLogDir = config.getDataLogDir();
tickTime = config.getTickTime();
maxClientCnxns = config.getMaxClientCnxns();
minSessionTimeout = config.getMinSessionTimeout();
maxSessionTimeout = config.getMaxSessionTimeout();
}
public InetSocketAddress getClientPortAddress() {
return clientPortAddress;
}
public File getDataDir() { return dataDir; }
public File getDataLogDir() { return dataLogDir; }
public int getTickTime() { return tickTime; }
public int getMaxClientCnxns() { return maxClientCnxns; }
/** minimum session timeout in milliseconds, -1 if unset */
public int getMinSessionTimeout() { return minSessionTimeout; }
/** maximum session timeout in milliseconds, -1 if unset */
public int getMaxSessionTimeout() { return maxSessionTimeout; }
}