279 lines
8.8 KiB
Java
279 lines
8.8 KiB
Java
/*
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* Copyright (c) 1997, 2013, 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 com.sun.jmx.snmp;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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/**
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* Represents an SNMP string.
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*
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* <p><b>This API is a Sun Microsystems internal API and is subject
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* to change without notice.</b></p>
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*/
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public class SnmpString extends SnmpValue {
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private static final long serialVersionUID = -7011986973225194188L;
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// CONSTRUCTORS
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//-------------
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/**
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* Constructs a new empty <CODE>SnmpString</CODE>.
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*/
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public SnmpString() {
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value = new byte[0] ;
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}
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/**
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* Constructs a new <CODE>SnmpString</CODE> from the specified bytes array.
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* @param v The bytes composing the string value.
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*/
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public SnmpString(byte[] v) {
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value = v.clone() ;
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}
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/**
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* Constructs a new <CODE>SnmpString</CODE> from the specified <CODE>Bytes</CODE> array.
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* @param v The <CODE>Bytes</CODE> composing the string value.
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*/
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public SnmpString(Byte[] v) {
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value = new byte[v.length] ;
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for (int i = 0 ; i < v.length ; i++) {
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value[i] = v[i].byteValue() ;
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}
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}
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/**
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* Constructs a new <CODE>SnmpString</CODE> from the specified <CODE>String</CODE> value.
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* @param v The initialization value.
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*/
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public SnmpString(String v) {
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value = v.getBytes() ;
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}
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/**
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* Constructs a new <CODE>SnmpString</CODE> from the specified <CODE> InetAddress </Code>.
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* @param address The <CODE>InetAddress </CODE>.
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*
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* @since 1.5
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*/
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public SnmpString(InetAddress address) {
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value = address.getAddress();
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}
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// PUBLIC METHODS
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//---------------
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/**
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* Converts the string value to its <CODE> InetAddress </CODE> form.
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* @return an {@link InetAddress} defined by the string value.
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* @exception UnknownHostException If string value is not a legal address format.
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*
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* @since 1.5
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*/
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public InetAddress inetAddressValue() throws UnknownHostException {
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return InetAddress.getByAddress(value);
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}
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/**
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* Converts the specified binary string into a character string.
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* @param bin The binary string value to convert.
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* @return The character string representation.
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*/
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public static String BinToChar(String bin) {
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char value[] = new char[bin.length()/8];
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int binLength = value.length;
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for (int i = 0; i < binLength; i++)
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value[i] = (char)Integer.parseInt(bin.substring(8*i, 8*i+8), 2);
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return new String(value);
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}
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/**
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* Converts the specified hexadecimal string into a character string.
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* @param hex The hexadecimal string value to convert.
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* @return The character string representation.
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*/
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public static String HexToChar(String hex) {
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char value[] = new char[hex.length()/2];
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int hexLength = value.length;
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for (int i = 0; i < hexLength; i++)
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value[i] = (char)Integer.parseInt(hex.substring(2*i, 2*i+2), 16);
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return new String(value);
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}
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/**
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* Returns the bytes array of this <CODE>SnmpString</CODE>.
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* @return The value.
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*/
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public byte[] byteValue() {
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return value.clone() ;
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}
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/**
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* Converts the string value to its array of <CODE>Bytes</CODE> form.
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* @return The array of <CODE>Bytes</CODE> representation of the value.
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*/
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public Byte[] toByte() {
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Byte[] result = new Byte[value.length] ;
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for (int i = 0 ; i < value.length ; i++) {
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result[i] = new Byte(value[i]) ;
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}
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return result ;
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}
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/**
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* Converts the string value to its <CODE>String</CODE> form.
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* @return The <CODE>String</CODE> representation of the value.
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*/
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public String toString() {
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return new String(value) ;
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}
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/**
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* Converts the string value to its <CODE>SnmpOid</CODE> form.
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* @return The OID representation of the value.
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*/
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public SnmpOid toOid() {
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long[] ids = new long[value.length] ;
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for (int i = 0 ; i < value.length ; i++) {
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ids[i] = (long)(value[i] & 0xFF) ;
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}
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return new SnmpOid(ids) ;
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}
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/**
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* Extracts the string from an index OID and returns its
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* value converted as an <CODE>SnmpOid</CODE>.
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* @param index The index array.
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* @param start The position in the index array.
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* @return The OID representing the string value.
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* @exception SnmpStatusException There is no string value
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* available at the start position.
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*/
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public static SnmpOid toOid(long[] index, int start) throws SnmpStatusException {
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try {
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if (index[start] > Integer.MAX_VALUE) {
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throw new SnmpStatusException(SnmpStatusException.noSuchName) ;
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}
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int strLen = (int)index[start++] ;
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long[] ids = new long[strLen] ;
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for (int i = 0 ; i < strLen ; i++) {
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ids[i] = index[start + i] ;
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}
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return new SnmpOid(ids) ;
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}
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catch(IndexOutOfBoundsException e) {
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throw new SnmpStatusException(SnmpStatusException.noSuchName) ;
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}
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}
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/**
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* Scans an index OID, skips the string value and returns the position
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* of the next value.
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* @param index The index array.
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* @param start The position in the index array.
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* @return The position of the next value.
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* @exception SnmpStatusException There is no string value
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* available at the start position.
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*/
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public static int nextOid(long[] index, int start) throws SnmpStatusException {
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try {
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if (index[start] > Integer.MAX_VALUE) {
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throw new SnmpStatusException(SnmpStatusException.noSuchName) ;
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}
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int strLen = (int)index[start++] ;
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start += strLen ;
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if (start <= index.length) {
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return start ;
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}
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else {
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throw new SnmpStatusException(SnmpStatusException.noSuchName) ;
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}
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}
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catch(IndexOutOfBoundsException e) {
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throw new SnmpStatusException(SnmpStatusException.noSuchName) ;
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}
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}
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/**
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* Appends an <CODE>SnmpOid</CODE> representing an <CODE>SnmpString</CODE> to another OID.
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* @param source An OID representing an <CODE>SnmpString</CODE> value.
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* @param dest Where source should be appended.
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*/
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public static void appendToOid(SnmpOid source, SnmpOid dest) {
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dest.append(source.getLength()) ;
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dest.append(source) ;
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}
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/**
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* Performs a clone action. This provides a workaround for the
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* <CODE>SnmpValue</CODE> interface.
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* @return The SnmpValue clone.
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*/
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final synchronized public SnmpValue duplicate() {
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return (SnmpValue) clone() ;
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}
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/**
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* Clones the <CODE>SnmpString</CODE> object, making a copy of its data.
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* @return The object clone.
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*/
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synchronized public Object clone() {
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SnmpString newclone = null ;
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try {
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newclone = (SnmpString) super.clone() ;
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newclone.value = new byte[value.length] ;
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System.arraycopy(value, 0, newclone.value, 0, value.length) ;
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} catch (CloneNotSupportedException e) {
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throw new InternalError(e) ; // vm bug.
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}
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return newclone ;
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}
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/**
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* Returns a textual description of the type object.
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* @return ASN.1 textual description.
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*/
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public String getTypeName() {
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return name ;
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}
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// VARIABLES
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//----------
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/**
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* Name of the type.
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*/
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final static String name = "String" ;
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/**
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* This is the bytes array of the string value.
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* @serial
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*/
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protected byte[] value = null ;
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}
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