jdk/src/share/classes/sun/management/snmp/jvminstr/NotificationTargetImpl.java
author mchung
Tue, 17 Jan 2012 15:55:40 -0800
changeset 11530 a9d059c15b80
parent 5506 202f599c92aa
child 24685 215fa91e1b4c
permissions -rw-r--r--
7117570: Warnings in sun.mangement.* and its subpackages Reviewed-by: mchung, dsamersoff Contributed-by: kurchi.subhra.hazra@oracle.com
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/*
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 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package sun.management.snmp.jvminstr;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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/**
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 * Notification Target data.
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 */
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public class NotificationTargetImpl implements NotificationTarget {
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    private InetAddress address;
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    private int port;
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    private String community;
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    /**
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     * Target parameter is a <CODE>java.lang.String</CODE>
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     * target synctax is <host>:<port>:community. Eg: "localhost:163:private".
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     * <p>The <code><em>host</em></code> is a host name, an IPv4 numeric
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     * host address, or an IPv6 numeric address enclosed in square
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     * brackets.</p>
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     * @throws IllegalArgumentException In case the target is malformed
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     */
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    public NotificationTargetImpl(String target)
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        throws IllegalArgumentException, UnknownHostException  {
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        parseTarget(target);
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    }
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    public NotificationTargetImpl(String address, int port,
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                                  String community)
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        throws UnknownHostException {
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        this(InetAddress.getByName(address),port,community);
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    }
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    public NotificationTargetImpl(InetAddress address, int port,
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                                  String community) {
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        this.address = address;
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        this.port = port;
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        this.community = community;
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    }
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    private void parseTarget(String target)
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        throws IllegalArgumentException, UnknownHostException {
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        if(target == null ||
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           target.length() == 0) throw new
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               IllegalArgumentException("Invalid target [" + target + "]");
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        String addrStr;
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        if (target.startsWith("[")) {
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            final int index = target.indexOf("]");
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            final int index2 = target.lastIndexOf(":");
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            if(index == -1)
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                throw new IllegalArgumentException("Host starts with [ but " +
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                                                   "does not end with ]");
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            addrStr = target.substring(1, index);
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            port = Integer.parseInt(target.substring(index + 2,
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                                                     index2));
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            if (!isNumericIPv6Address(addrStr)) {
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            throw new IllegalArgumentException("Address inside [...] must " +
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                                               "be numeric IPv6 address");
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            }
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            if (addrStr.startsWith("["))
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                throw new IllegalArgumentException("More than one [[...]]");
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        } else {
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            final int index = target.indexOf(":");
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            final int index2 = target.lastIndexOf(":");
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            if(index == -1) throw new
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                IllegalArgumentException("Missing port separator \":\"");
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            addrStr = target.substring(0, index);
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            port = Integer.parseInt(target.substring(index + 1,
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                                                     index2));
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        }
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        address = InetAddress.getByName(addrStr);
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        //THE CHECK SHOULD BE STRONGER!!!
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        final int index = target.lastIndexOf(":");
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        community = target.substring(index + 1, target.length());
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    }
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    /* True if this string, assumed to be a valid argument to
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     * InetAddress.getByName, is a numeric IPv6 address.
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     */
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    private static boolean isNumericIPv6Address(String s) {
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        // address contains colon iff it's a numeric IPv6 address
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        return (s.indexOf(':') >= 0);
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    }
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    public String getCommunity() {
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        return community;
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    }
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    public InetAddress getAddress() {
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        return address;
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    }
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    public int getPort() {
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        return port;
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    }
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    public String toString() {
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        return "address : " + address + " port : " + port +
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            " community : " + community;
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    }
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}