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Liferay Portal Template FreeMarker
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package freemarker.ext.beans;
import java.util.AbstractCollection;
import java.util.Collection;
import java.util.Iterator;
import freemarker.template.TemplateCollectionModel;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateModelAdapter;
import freemarker.template.TemplateModelException;
import freemarker.template.TemplateModelIterator;
import freemarker.template.utility.UndeclaredThrowableException;
/**
* Adapts a {@link TemplateCollectionModel} to {@link Collection}.
*/
class CollectionAdapter extends AbstractCollection implements TemplateModelAdapter {
private final BeansWrapper wrapper;
private final TemplateCollectionModel model;
CollectionAdapter(TemplateCollectionModel model, BeansWrapper wrapper) {
this.model = model;
this.wrapper = wrapper;
}
@Override
public TemplateModel getTemplateModel() {
return model;
}
@Override
public int size() {
throw new UnsupportedOperationException();
}
@Override
public Iterator iterator() {
try {
return new Iterator() {
final TemplateModelIterator i = model.iterator();
@Override
public boolean hasNext() {
try {
return i.hasNext();
} catch (TemplateModelException e) {
throw new UndeclaredThrowableException(e);
}
}
@Override
public Object next() {
try {
return wrapper.unwrap(i.next());
} catch (TemplateModelException e) {
throw new UndeclaredThrowableException(e);
}
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
};
} catch (TemplateModelException e) {
throw new UndeclaredThrowableException(e);
}
}
}
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