/*
* Copyright (c) 2003 The Visigoth Software Society. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowledgement:
* "This product includes software developed by the
* Visigoth Software Society (http://www.visigoths.org/)."
* Alternately, this acknowledgement may appear in the software itself,
* if and wherever such third-party acknowledgements normally appear.
*
* 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the
* project contributors may be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact visigoths@visigoths.org.
*
* 5. Products derived from this software may not be called "FreeMarker" or "Visigoth"
* nor may "FreeMarker" or "Visigoth" appear in their names
* without prior written permission of the Visigoth Software Society.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE VISIGOTH SOFTWARE SOCIETY OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Visigoth Software Society. For more
* information on the Visigoth Software Society, please see
* http://www.visigoths.org/
*/
package freemarker.ext.beans;
import java.util.List;
import java.util.Map;
import freemarker.core.CollectionAndSequence;
import freemarker.ext.util.ModelFactory;
import freemarker.ext.util.WrapperTemplateModel;
import freemarker.template.AdapterTemplateModel;
import freemarker.template.ObjectWrapper;
import freemarker.template.SimpleSequence;
import freemarker.template.TemplateCollectionModel;
import freemarker.template.TemplateHashModelEx;
import freemarker.template.TemplateMethodModelEx;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateModelException;
import freemarker.template.WrappingTemplateModel;
/**
* Model used by {@link BeansWrapper} when <tt>simpleMapWrapper</tt>
* mode is enabled. Provides a simple hash model interface to the
* underlying map (does not copy like {@link freemarker.template.SimpleHash}),
* and a method interface to non-string keys.
* @author Chris Nokleberg
* @version $Id: SimpleMapModel.java,v 1.9 2005/06/12 19:03:04 szegedia Exp $
*/
public class SimpleMapModel extends WrappingTemplateModel
implements TemplateHashModelEx, TemplateMethodModelEx, AdapterTemplateModel,
WrapperTemplateModel
{
static final ModelFactory FACTORY =
new ModelFactory()
{
public TemplateModel create(Object object, ObjectWrapper wrapper)
{
return new SimpleMapModel((Map)object, (BeansWrapper)wrapper);
}
};
private final Map map;
public SimpleMapModel(Map map, BeansWrapper wrapper)
{
super(wrapper);
this.map = map;
}
public TemplateModel get(String key) throws TemplateModelException {
Object val = map.get(key);
if(val == null) {
if(key.length() == 1) {
// just check for Character key if this is a single-character string
Character charKey = new Character(key.charAt(0));
val = map.get(charKey);
if (val == null && !(map.containsKey(key) || map.containsKey(charKey))) {
return null;
}
}
else if(!map.containsKey(key)) {
return null;
}
}
return wrap(val);
}
public Object exec(List args) throws TemplateModelException {
Object key = ((BeansWrapper)getObjectWrapper()).unwrap((TemplateModel)args.get(0));
Object value = map.get(key);
if (value == null && !map.containsKey(key)) {
return null;
}
return wrap(value);
}
public boolean isEmpty() {
return map.isEmpty();
}
public int size() {
return map.size();
}
public TemplateCollectionModel keys() {
return new CollectionAndSequence(new SimpleSequence(map.keySet(), getObjectWrapper()));
}
public TemplateCollectionModel values() {
return new CollectionAndSequence(new SimpleSequence(map.values(), getObjectWrapper()));
}
public Object getAdaptedObject(Class hint) {
return map;
}
public Object getWrappedObject() {
return map;
}
}