Java InetAddress Create getDestinationInetAddress(URI uri)

Description

Get an Internet address for a URI destination, resolving the host name if necessary.

License

Open Source License

Parameter

Parameter	Description
uri	the destination URI

Exception

Parameter	Description
UnknownHostException	if the URI host was existent but could not be resolved to a valid address

Return

the socket address, or null if no authority is present in the URI

Declaration

public static InetAddress getDestinationInetAddress(URI uri) throws UnknownHostException 

Method Source Code

//package com.java2s;
/*/*from   w w w  . j  a v a2  s  .c om*/
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed 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.InetAddress;

import java.net.URI;

import java.net.UnknownHostException;

public class Main {
    /**
     * Get an Internet address for a URI destination, resolving the host name if necessary.
     *
     * @param uri the destination URI
     * @return the socket address, or {@code null} if no authority is present in the URI
     * @throws UnknownHostException if the URI host was existent but could not be resolved to a valid address
     */
    public static InetAddress getDestinationInetAddress(URI uri) throws UnknownHostException {
        final String host = uri.getHost();
        if (host == null) {
            return null;
        }
        final int length = host.length();
        if (length == 0) {
            return null;
        }
        return InetAddress.getByName(host);
    }
}

Related

1. getAllLocalIPv4InetAddresses()
2. getBroadcast(InetAddress address)
3. getBytes(InetAddress addr, int port)
4. getClassPart(InetAddress ip, int partNumber)
5. getConnectionAddress(InetAddress addr)
6. getExternalAddresses(InetAddress[] addresses)
7. getFQDN(final InetAddress addr)
8. getFreePort(InetAddress ipAddress)
9. getFreeSocket(InetAddress bindAddress, int portRangeStart, int portRangeEnd)