org.apache.zookeeper.client.ConnectStringParser Maven / Gradle / Ivy
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* 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
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* 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.client;
import static org.apache.zookeeper.common.StringUtils.split;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.List;
import org.apache.zookeeper.common.NetUtils;
import org.apache.zookeeper.common.PathUtils;
/**
* A parser for ZooKeeper Client connect strings.
*
* This class is not meant to be seen or used outside of ZooKeeper itself.
*
* The chrootPath member should be replaced by a Path object in issue
* ZOOKEEPER-849.
*
* @see org.apache.zookeeper.ZooKeeper
*/
public final class ConnectStringParser {
private static final int DEFAULT_PORT = 2181;
private final String chrootPath;
private final ArrayList serverAddresses = new ArrayList();
/**
* Parse host and port by spliting client connectString
* with support for IPv6 literals
* @throws IllegalArgumentException
* for an invalid chroot path.
*/
public ConnectStringParser(String connectString) {
// parse out chroot, if any
int off = connectString.indexOf('/');
if (off >= 0) {
String chrootPath = connectString.substring(off);
// ignore "/" chroot spec, same as null
if (chrootPath.length() == 1) {
this.chrootPath = null;
} else {
PathUtils.validatePath(chrootPath);
this.chrootPath = chrootPath;
}
connectString = connectString.substring(0, off);
} else {
this.chrootPath = null;
}
List hostsList = split(connectString, ",");
for (String host : hostsList) {
int port = DEFAULT_PORT;
String[] hostAndPort = NetUtils.getIPV6HostAndPort(host);
if (hostAndPort.length != 0) {
host = hostAndPort[0];
if (hostAndPort.length == 2) {
port = Integer.parseInt(hostAndPort[1]);
}
} else {
int pidx = host.lastIndexOf(':');
if (pidx >= 0) {
// otherwise : is at the end of the string, ignore
if (pidx < host.length() - 1) {
port = Integer.parseInt(host.substring(pidx + 1));
}
host = host.substring(0, pidx);
}
}
serverAddresses.add(InetSocketAddress.createUnresolved(host, port));
}
}
public String getChrootPath() {
return chrootPath;
}
public ArrayList getServerAddresses() {
return serverAddresses;
}
}