| /* |
| * Copyright (c) 1997, 2007, 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 com.sun.jmx.snmp; |
| |
| |
| |
| |
| /** |
| * Represents an SNMP IpAddress. |
| * |
| * <p><b>This API is a Sun Microsystems internal API and is subject |
| * to change without notice.</b></p> |
| */ |
| |
| public class SnmpIpAddress extends SnmpOid { |
| private static final long serialVersionUID = 7204629998270874474L; |
| |
| // CONSTRUCTORS |
| //------------- |
| /** |
| * Constructs a new <CODE>SnmpIpAddress</CODE> from the specified bytes array. |
| * @param bytes The four bytes composing the address. |
| * @exception IllegalArgumentException The length of the array is not equal to four. |
| */ |
| public SnmpIpAddress(byte[] bytes) throws IllegalArgumentException { |
| buildFromByteArray(bytes); |
| } |
| |
| /** |
| * Constructs a new <CODE>SnmpIpAddress</CODE> from the specified long value. |
| * @param addr The initialization value. |
| */ |
| public SnmpIpAddress(long addr) { |
| int address = (int)addr ; |
| byte[] ipaddr = new byte[4]; |
| |
| ipaddr[0] = (byte) ((address >>> 24) & 0xFF); |
| ipaddr[1] = (byte) ((address >>> 16) & 0xFF); |
| ipaddr[2] = (byte) ((address >>> 8) & 0xFF); |
| ipaddr[3] = (byte) (address & 0xFF); |
| |
| buildFromByteArray(ipaddr); |
| } |
| |
| /** |
| * Constructs a new <CODE>SnmpIpAddress</CODE> from a dot-formatted <CODE>String</CODE>. |
| * The dot-formatted <CODE>String</CODE> is formulated x.x.x.x . |
| * @param dotAddress The initialization value. |
| * @exception IllegalArgumentException The string does not correspond to an ip address. |
| */ |
| public SnmpIpAddress(String dotAddress) throws IllegalArgumentException { |
| super(dotAddress) ; |
| if ((componentCount > 4) || |
| (components[0] > 255) || |
| (components[1] > 255) || |
| (components[2] > 255) || |
| (components[3] > 255)) { |
| throw new IllegalArgumentException(dotAddress) ; |
| } |
| } |
| |
| /** |
| * Constructs a new <CODE>SnmpIpAddress</CODE> from four long values. |
| * @param b1 Byte 1. |
| * @param b2 Byte 2. |
| * @param b3 Byte 3. |
| * @param b4 Byte 4. |
| * @exception IllegalArgumentException A value is outside of [0-255]. |
| */ |
| public SnmpIpAddress(long b1, long b2, long b3, long b4) { |
| super(b1, b2, b3, b4) ; |
| if ((components[0] > 255) || |
| (components[1] > 255) || |
| (components[2] > 255) || |
| (components[3] > 255)) { |
| throw new IllegalArgumentException() ; |
| } |
| } |
| |
| // PUBLIC METHODS |
| //--------------- |
| /** |
| * Converts the address value to its byte array form. |
| * @return The byte array representation of the value. |
| */ |
| public byte[] byteValue() { |
| byte[] result = new byte[4] ; |
| result[0] = (byte)components[0] ; |
| result[1] = (byte)components[1] ; |
| result[2] = (byte)components[2] ; |
| result[3] = (byte)components[3] ; |
| |
| return result ; |
| } |
| |
| /** |
| * Converts the address to its <CODE>String</CODE> form. |
| * Same as <CODE>toString()</CODE>. Exists only to follow a naming scheme. |
| * @return The <CODE>String</CODE> representation of the value. |
| */ |
| public String stringValue() { |
| return toString() ; |
| } |
| |
| /** |
| * Extracts the ip address from an index OID and returns its |
| * value converted as an <CODE>SnmpOid</CODE>. |
| * @param index The index array. |
| * @param start The position in the index array. |
| * @return The OID representing the ip address value. |
| * @exception SnmpStatusException There is no ip address value |
| * available at the start position. |
| */ |
| public static SnmpOid toOid(long[] index, int start) throws SnmpStatusException { |
| if (start + 4 <= index.length) { |
| try { |
| return new SnmpOid( |
| index[start], |
| index[start+1], |
| index[start+2], |
| index[start+3]) ; |
| } |
| catch(IllegalArgumentException e) { |
| throw new SnmpStatusException(SnmpStatusException.noSuchName) ; |
| } |
| } |
| else { |
| throw new SnmpStatusException(SnmpStatusException.noSuchName) ; |
| } |
| } |
| |
| /** |
| * Scans an index OID, skips the address value and returns the position |
| * of the next value. |
| * @param index The index array. |
| * @param start The position in the index array. |
| * @return The position of the next value. |
| * @exception SnmpStatusException There is no address value |
| * available at the start position. |
| */ |
| public static int nextOid(long[] index, int start) throws SnmpStatusException { |
| if (start + 4 <= index.length) { |
| return start + 4 ; |
| } |
| else { |
| throw new SnmpStatusException(SnmpStatusException.noSuchName) ; |
| } |
| } |
| |
| /** |
| * Appends an <CODE>SnmpOid</CODE> representing an <CODE>SnmpIpAddress</CODE> to another OID. |
| * @param source An OID representing an <CODE>SnmpIpAddress</CODE> value. |
| * @param dest Where source should be appended. |
| */ |
| public static void appendToOid(SnmpOid source, SnmpOid dest) { |
| if (source.getLength() != 4) { |
| throw new IllegalArgumentException() ; |
| } |
| dest.append(source) ; |
| } |
| |
| /** |
| * Returns a textual description of the type object. |
| * @return ASN.1 textual description. |
| */ |
| final public String getTypeName() { |
| return name ; |
| } |
| |
| // PRIVATE METHODS |
| //---------------- |
| /** |
| * Build Ip address from byte array. |
| */ |
| private void buildFromByteArray(byte[] bytes) { |
| if (bytes.length != 4) { |
| throw new IllegalArgumentException() ; |
| } |
| components = new long[4] ; |
| componentCount= 4; |
| components[0] = (bytes[0] >= 0) ? bytes[0] : bytes[0] + 256 ; |
| components[1] = (bytes[1] >= 0) ? bytes[1] : bytes[1] + 256 ; |
| components[2] = (bytes[2] >= 0) ? bytes[2] : bytes[2] + 256 ; |
| components[3] = (bytes[3] >= 0) ? bytes[3] : bytes[3] + 256 ; |
| } |
| |
| // VARIABLES |
| //---------- |
| /** |
| * Name of the type. |
| */ |
| final static String name = "IpAddress" ; |
| } |