001: /*
002:
003: ============================================================================
004: The Apache Software License, Version 1.1
005: ============================================================================
006:
007: Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
008:
009: Redistribution and use in source and binary forms, with or without modifica-
010: tion, are permitted provided that the following conditions are met:
011:
012: 1. Redistributions of source code must retain the above copyright notice,
013: this list of conditions and the following disclaimer.
014:
015: 2. Redistributions in binary form must reproduce the above copyright notice,
016: this list of conditions and the following disclaimer in the documentation
017: and/or other materials provided with the distribution.
018:
019: 3. The end-user documentation included with the redistribution, if any, must
020: include the following acknowledgment: "This product includes software
021: developed by the Apache Software Foundation (http://www.apache.org/)."
022: Alternately, this acknowledgment may appear in the software itself, if
023: and wherever such third-party acknowledgments normally appear.
024:
025: 4. The names "Batik" and "Apache Software Foundation" must not be
026: used to endorse or promote products derived from this software without
027: prior written permission. For written permission, please contact
028: apache@apache.org.
029:
030: 5. Products derived from this software may not be called "Apache", nor may
031: "Apache" appear in their name, without prior written permission of the
032: Apache Software Foundation.
033:
034: THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
035: INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
036: FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
037: APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
038: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
039: DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
040: OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
041: ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
042: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
043: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
044:
045: This software consists of voluntary contributions made by many individuals
046: on behalf of the Apache Software Foundation. For more information on the
047: Apache Software Foundation, please see <http://www.apache.org/>.
048:
049: */
050:
051: package org.apache.batik.css.engine.value;
052:
053: import org.apache.batik.css.engine.CSSEngine;
054: import org.w3c.css.sac.LexicalUnit;
055: import org.w3c.dom.DOMException;
056: import org.w3c.dom.css.CSSPrimitiveValue;
057:
058: /**
059: * This class provides a manager for the property with support for
060: * identifier values.
061: *
062: * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a>
063: * @version $Id$
064: */
065: public abstract class IdentifierManager extends AbstractValueManager
066: // BEGIN RAVE MODIFICATIONS
067: implements IdentifierProvider
068: // END RAVE MODIFICATIONS
069: {
070:
071: /**
072: * Implements {@link ValueManager#createValue(LexicalUnit,CSSEngine)}.
073: */
074: public Value createValue(LexicalUnit lu, CSSEngine engine)
075: throws DOMException {
076: switch (lu.getLexicalUnitType()) {
077: case LexicalUnit.SAC_INHERIT:
078: return ValueConstants.INHERIT_VALUE;
079:
080: case LexicalUnit.SAC_IDENT:
081: String s = lu.getStringValue().toLowerCase().intern();
082: Object v = getIdentifiers().get(s);
083: if (v == null) {
084: throw createInvalidIdentifierDOMException(lu
085: .getStringValue(), engine);
086: }
087: return (Value) v;
088:
089: default:
090: throw createInvalidLexicalUnitDOMException(lu
091: .getLexicalUnitType(), engine);
092: }
093: }
094:
095: /**
096: * Implements {@link
097: * ValueManager#createStringValue(short,String,CSSEngine)}.
098: */
099: public Value createStringValue(short type, String value,
100: CSSEngine engine) throws DOMException {
101: if (type != CSSPrimitiveValue.CSS_IDENT) {
102: throw createInvalidStringTypeDOMException(type, engine);
103: }
104: Object v = getIdentifiers().get(value.toLowerCase().intern());
105: if (v == null) {
106: throw createInvalidIdentifierDOMException(value, engine);
107: }
108: return (Value) v;
109: }
110:
111: /**
112: * Returns the map that contains the name/value mappings for each
113: * possible identifiers.
114: */
115: protected abstract StringMap getIdentifiers();
116:
117: // BEGIN RAVE MODIFICATIONS
118: public StringMap getIdentifierMap() {
119: return getIdentifiers();
120: }
121: // END RAVE MODIFICATIONS
122: }
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