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