/*
* Copyright 2014 Attila Szegedi, Daniel Dekany, Jonathan Revusky
*
* Licensed 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.jython;
import org.python.core.PyException;
import org.python.core.PyObject;
import freemarker.ext.util.ModelFactory;
import freemarker.template.ObjectWrapper;
import freemarker.template.TemplateCollectionModel;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateModelException;
import freemarker.template.TemplateModelIterator;
import freemarker.template.TemplateSequenceModel;
/**
* Model for Jython sequence objects ({@link org.python.core.PySequence} descendants).
*/
public class JythonSequenceModel
extends
JythonModel
implements
TemplateSequenceModel,
TemplateCollectionModel
{
static final ModelFactory FACTORY =
new ModelFactory()
{
public TemplateModel create(Object object, ObjectWrapper wrapper)
{
return new JythonSequenceModel((PyObject)object, (JythonWrapper)wrapper);
}
};
public JythonSequenceModel(PyObject object, JythonWrapper wrapper)
{
super(object, wrapper);
}
/**
* Returns {@link PyObject#__finditem__(int)}.
*/
public TemplateModel get(int index) throws TemplateModelException
{
try
{
return wrapper.wrap(object.__finditem__(index));
}
catch(PyException e)
{
throw new TemplateModelException(e);
}
}
/**
* Returns {@link PyObject#__len__()}.
*/
public int size() throws TemplateModelException
{
try
{
return object.__len__();
}
catch(PyException e)
{
throw new TemplateModelException(e);
}
}
public TemplateModelIterator iterator()
{
return new TemplateModelIterator()
{
int i = 0;
public boolean hasNext() throws TemplateModelException
{
return i < size();
}
public TemplateModel next() throws TemplateModelException
{
return get(i++);
}
};
}
}