AttributeString.java revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
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*/
/*
* ident "%Z%%M% %I% %E% SMI"
*
* Copyright (c) 1999 by Sun Microsystems, Inc.
* All rights reserved.
*
*/
// SCCS Status: %W% %G%
// AttributeString.java: Model an Attribute value string.
// Author: James Kempf
// Created On: Wed Apr 8 10:40:03 1998
// Last Modified By: James Kempf
// Last Modified On: Wed Jul 29 15:21:32 1998
// Update Count: 16
//
package com.sun.slp;
import java.util.*;
import java.io.*;
/**
* The AttributeString class embodies the SLP lower cased, space compressed
* string matching rules. It precomputes an
* efficient string for matching, squeezing out whitespace and lower casing.
* The toString() method returns the original string. Note that it does
* NOT handle pattern wildcard matching.
*
* @version %R%.%L% %D%
* @author James Kempf
*/
class AttributeString extends Object {
String string; // the original string.
String cstring; // whitespace separated, lower cased parts.
Locale locale; // the locale in which this string was created.
// Create an attribute string. Use the passed in locale to determine
// the lower casing rules.
AttributeString(String str, Locale nlocale) {
string = str;
locale = nlocale;
cstring = parse(str, nlocale);
}
// Parse the string into whitespace separated, lower cased parts.
private String parse(String str, Locale nlocale) {
StringBuffer buf = new StringBuffer();
StringTokenizer tk =
new StringTokenizer(str, ServiceLocationAttribute.WHITESPACE);
while (tk.hasMoreTokens()) {
buf.append(tk.nextToken().toLowerCase(nlocale));
buf.append(ServiceLocationAttribute.SPACE);
}
return buf.toString().trim();
}
//
// Comparison operations.
//
// For compatibility with AttributePattern.
public boolean match(AttributeString str) {
return equals(str);
}
public boolean lessEqual(AttributeString str) {
return (cstring.compareTo(str.cstring) <= 0);
}
public boolean greaterEqual(AttributeString str) {
return (cstring.compareTo(str.cstring) >= 0);
}
//
// Object overrides.
//
/**
* Return true if obj pattern matches with this string.
*/
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof AttributeString)) {
return false;
}
return cstring.equals(((AttributeString)obj).cstring);
}
/**
* Return the original string.
*/
public String toString() {
return string;
}
/**
* Hash on the computed string.
*/
public int hashCode() {
return cstring.toString().hashCode();
}
}