001: /*
002: * Copyright (c) 2003 The Visigoth Software Society. All rights
003: * reserved.
004: *
005: * Redistribution and use in source and binary forms, with or without
006: * modification, are permitted provided that the following conditions
007: * are met:
008: *
009: * 1. Redistributions of source code must retain the above copyright
010: * notice, this list of conditions and the following disclaimer.
011: *
012: * 2. Redistributions in binary form must reproduce the above copyright
013: * notice, this list of conditions and the following disclaimer in
014: * the documentation and/or other materials provided with the
015: * distribution.
016: *
017: * 3. The end-user documentation included with the redistribution, if
018: * any, must include the following acknowledgement:
019: * "This product includes software developed by the
020: * Visigoth Software Society (http://www.visigoths.org/)."
021: * Alternately, this acknowledgement may appear in the software itself,
022: * if and wherever such third-party acknowledgements normally appear.
023: *
024: * 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the
025: * project contributors may be used to endorse or promote products derived
026: * from this software without prior written permission. For written
027: * permission, please contact visigoths@visigoths.org.
028: *
029: * 5. Products derived from this software may not be called "FreeMarker" or "Visigoth"
030: * nor may "FreeMarker" or "Visigoth" appear in their names
031: * without prior written permission of the Visigoth Software Society.
032: *
033: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
034: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
035: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
036: * DISCLAIMED. IN NO EVENT SHALL THE VISIGOTH SOFTWARE SOCIETY OR
037: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
038: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
039: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
040: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
041: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
042: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
043: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
044: * SUCH DAMAGE.
045: * ====================================================================
046: *
047: * This software consists of voluntary contributions made by many
048: * individuals on behalf of the Visigoth Software Society. For more
049: * information on the Visigoth Software Society, please see
050: * http://www.visigoths.org/
051: */
052:
053: package freemarker.ext.beans;
054:
055: import java.util.List;
056: import java.util.Map;
057:
058: import freemarker.core.CollectionAndSequence;
059: import freemarker.ext.util.ModelFactory;
060: import freemarker.ext.util.WrapperTemplateModel;
061: import freemarker.template.AdapterTemplateModel;
062: import freemarker.template.ObjectWrapper;
063: import freemarker.template.SimpleSequence;
064: import freemarker.template.TemplateCollectionModel;
065: import freemarker.template.TemplateHashModelEx;
066: import freemarker.template.TemplateMethodModelEx;
067: import freemarker.template.TemplateModel;
068: import freemarker.template.TemplateModelException;
069: import freemarker.template.WrappingTemplateModel;
070:
071: /**
072: * Model used by {@link BeansWrapper} when <tt>simpleMapWrapper</tt>
073: * mode is enabled. Provides a simple hash model interface to the
074: * underlying map (does not copy like {@link freemarker.template.SimpleHash}),
075: * and a method interface to non-string keys.
076: * @author Chris Nokleberg
077: * @version $Id: SimpleMapModel.java,v 1.9 2005/06/12 19:03:04 szegedia Exp $
078: */
079: public class SimpleMapModel extends WrappingTemplateModel implements
080: TemplateHashModelEx, TemplateMethodModelEx,
081: AdapterTemplateModel, WrapperTemplateModel {
082: static final ModelFactory FACTORY = new ModelFactory() {
083: public TemplateModel create(Object object, ObjectWrapper wrapper) {
084: return new SimpleMapModel((Map) object,
085: (BeansWrapper) wrapper);
086: }
087: };
088:
089: private final Map map;
090:
091: public SimpleMapModel(Map map, BeansWrapper wrapper) {
092: super (wrapper);
093: this .map = map;
094: }
095:
096: public TemplateModel get(String key) throws TemplateModelException {
097: return wrap(map.get(key));
098: }
099:
100: public Object exec(List args) throws TemplateModelException {
101: Object key = ((BeansWrapper) getObjectWrapper())
102: .unwrap((TemplateModel) args.get(0));
103: return wrap(map.get(key));
104: }
105:
106: public boolean isEmpty() {
107: return map.isEmpty();
108: }
109:
110: public int size() {
111: return map.size();
112: }
113:
114: public TemplateCollectionModel keys() {
115: return new CollectionAndSequence(new SimpleSequence(map
116: .keySet(), getObjectWrapper()));
117: }
118:
119: public TemplateCollectionModel values() {
120: return new CollectionAndSequence(new SimpleSequence(map
121: .values(), getObjectWrapper()));
122: }
123:
124: public Object getAdaptedObject(Class hint) {
125: return map;
126: }
127:
128: public Object getWrappedObject() {
129: return map;
130: }
131: }
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