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/* * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */package sun.management.snmp.jvminstr; import java.net.InetAddress;import java.net.UnknownHostException; /** * Notification Target data. */public class NotificationTargetImpl implements NotificationTarget {    private InetAddress address;    private int port;    private String community;     /**     * Target parameter is a <CODE>java.lang.String</CODE>     * target synctax is <host>:<port>:community. Eg: "localhost:163:private".     * <p>The <code><em>host</em></code> is a host name, an IPv4 numeric     * host address, or an IPv6 numeric address enclosed in square     * brackets.</p>     * @throws IllegalArgumentException In case the target is malformed     */    public NotificationTargetImpl(String target)        throws IllegalArgumentException, UnknownHostException  {        parseTarget(target);    }     public NotificationTargetImpl(String address, int port,                                  String community)        throws UnknownHostException {        this(InetAddress.getByName(address),port,community);    }     public NotificationTargetImpl(InetAddress address, int port,                                  String community) {        this.address = address;        this.port = port;        this.community = community;    }     private void parseTarget(String target)        throws IllegalArgumentException, UnknownHostException {         if(target == null ||           target.length() == 0) throw new               IllegalArgumentException("Invalid target [" + target + "]");         String addrStr;        if (target.startsWith("[")) {            final int index = target.indexOf("]");            final int index2 = target.lastIndexOf(":");            if(index == -1)                throw new IllegalArgumentException("Host starts with [ but " +                                                   "does not end with ]");            addrStr = target.substring(1, index);            port = Integer.parseInt(target.substring(index + 2,                                                     index2));            if (!isNumericIPv6Address(addrStr)) {            throw new IllegalArgumentException("Address inside [...] must " +                                               "be numeric IPv6 address");            }            if (addrStr.startsWith("["))                throw new IllegalArgumentException("More than one [[...]]");        } else {            final int index = target.indexOf(":");            final int index2 = target.lastIndexOf(":");            if(index == -1) throw new                IllegalArgumentException("Missing port separator \":\"");            addrStr = target.substring(0, index);             port = Integer.parseInt(target.substring(index + 1,                                                     index2));        }         address = InetAddress.getByName(addrStr);         //THE CHECK SHOULD BE STRONGER!!!        final int index = target.lastIndexOf(":");         community = target.substring(index + 1, target.length());     }     /* True if this string, assumed to be a valid argument to     * InetAddress.getByName, is a numeric IPv6 address.     */    private static boolean isNumericIPv6Address(String s) {        // address contains colon iff it's a numeric IPv6 address        return (s.indexOf(':') >= 0);    }     public String getCommunity() {        return community;    }     public InetAddress getAddress() {        return address;    }     public int getPort() {        return port;    }     public String toString() {        return "address : " + address + " port : " + port +            " community : " + community;    }}