Java Socket Create createSocketAddr(String target)

Description

create Socket Addr

License

Apache License

Declaration

public static InetSocketAddress createSocketAddr(String target) throws MalformedURLException 

Method Source Code

//package com.java2s;
/**/*from ww  w .  j  ava2  s .  co m*/
 * 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.
 */

import java.net.InetSocketAddress;
import java.net.MalformedURLException;

import java.net.URL;

import java.util.HashMap;
import java.util.Map;

public class Main {
    private static Map<String, String> hostToResolved = new HashMap<String, String>();

    public static InetSocketAddress createSocketAddr(String target) throws MalformedURLException {
        return createSocketAddr(target, 8080);
    }

    public static InetSocketAddress createSocketAddr(String target, int defaultPort) throws MalformedURLException {
        if (target == null) {
            throw new IllegalArgumentException("Target address cannot be null.");
        }
        int colonIndex = target.indexOf(':');
        if (colonIndex < 0 && defaultPort == -1) {
            throw new RuntimeException("Not a host:port pair: " + target);
        }
        String hostname;
        int port = -1;
        if (!target.contains("/")) {
            if (colonIndex == -1) {
                hostname = target;
            } else {
                // must be the old style <host>:<port>
                hostname = target.substring(0, colonIndex);
                port = Integer.parseInt(target.substring(colonIndex + 1));
            }
        } else {
            // a new uri
            URL addr = new URL(target);
            hostname = addr.getHost();
            port = addr.getPort();
        }
        if (port == -1) {
            port = defaultPort;
        }
        if (getStaticResolution(hostname) != null) {
            hostname = getStaticResolution(hostname);
        }
        return new InetSocketAddress(hostname, port);
    }

    public static String getStaticResolution(String host) {
        synchronized (hostToResolved) {
            return hostToResolved.get(host);
        }
    }
}

Related

1. createSocket(String host, int port)
2. createSocket(String[] hostPort)
3. createSocketAddr(String addr)
4. createSocketAddr(String target)
5. createSocketAddress()
6. createSocketAddress(String server)
7. createSocketAddrForHost(String hostName, int port)