Java HTTP Port Find parse(final String desc, final int defaultPort)

Description

Parse an address string such as host:port or *:port .

License

Apache License

Declaration

public static InetSocketAddress parse(final String desc, final int defaultPort) 

Method Source Code

//package com.java2s;
// Licensed under the Apache License, Version 2.0 (the "License");

import java.net.InetSocketAddress;

public class Main {
    /** Parse an address string such as {@code host:port} or {@code *:port}. */
    public static InetSocketAddress parse(final String desc, final int defaultPort) {
        String hostStr;//from w  ww  . ja  va2s.  c om
        String portStr;

        if (desc.startsWith("[")) {
            // IPv6, as a raw IP address.
            //
            final int hostEnd = desc.indexOf(']');
            if (hostEnd < 0) {
                throw new IllegalArgumentException("invalid IPv6: " + desc);
            }

            hostStr = desc.substring(1, hostEnd);
            portStr = desc.substring(hostEnd + 1);
        } else {
            // IPv4, or a host name.
            //
            final int hostEnd = desc.indexOf(':');
            hostStr = 0 <= hostEnd ? desc.substring(0, hostEnd) : desc;
            portStr = 0 <= hostEnd ? desc.substring(hostEnd) : "";
        }

        if ("".equals(hostStr)) {
            hostStr = "*";
        }
        if (portStr.startsWith(":")) {
            portStr = portStr.substring(1);
        }

        final int port;
        if (portStr.length() > 0) {
            try {
                port = Integer.parseInt(portStr);
            } catch (NumberFormatException e) {
                throw new IllegalArgumentException("invalid port: " + desc);
            }
        } else {
            port = defaultPort;
        }

        if ("*".equals(hostStr)) {
            return new InetSocketAddress(port);
        }
        return InetSocketAddress.createUnresolved(hostStr, port);
    }
}

Related

1. issueHttpRequest(String methodName, int[] rc, String host, String port, String path)
2. isTcpPortOpen(int port)
3. isTcpPortOpenCallable(final int port)
4. isTcpPortOpenCallable(final int port)
5. loadStringSupportedType(String javaType)
6. parse(String specs, int defaultPort)
7. parseCommaDelimitedHosts2(String hosts, int port_range)
8. parseHostPort(String s)
9. parsePort(String s)