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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.rhino;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.EvaluatorException;
import org.mozilla.javascript.Function;
import org.mozilla.javascript.NativeJavaObject;
import org.mozilla.javascript.Scriptable;
import org.mozilla.javascript.ScriptableObject;
import freemarker.ext.beans.BeansWrapper;
import freemarker.ext.util.ModelFactory;
import freemarker.template.AdapterTemplateModel;
import freemarker.template.ObjectWrapper;
import freemarker.template.TemplateBooleanModel;
import freemarker.template.TemplateCollectionModel;
import freemarker.template.TemplateHashModelEx;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateModelException;
import freemarker.template.TemplateNumberModel;
import freemarker.template.TemplateScalarModel;
import freemarker.template.TemplateSequenceModel;
/**
*/
public class RhinoScriptableModel implements TemplateHashModelEx,
TemplateSequenceModel, AdapterTemplateModel, TemplateScalarModel,
TemplateBooleanModel, TemplateNumberModel {
static final ModelFactory FACTORY = new ModelFactory() {
@Override
public TemplateModel create(Object object, ObjectWrapper wrapper) {
return new RhinoScriptableModel((Scriptable) object,
(BeansWrapper) wrapper);
}
};
private final Scriptable scriptable;
private final BeansWrapper wrapper;
public RhinoScriptableModel(Scriptable scriptable, BeansWrapper wrapper) {
this.scriptable = scriptable;
this.wrapper = wrapper;
}
@Override
public TemplateModel get(String key) throws TemplateModelException {
Object retval = ScriptableObject.getProperty(scriptable, key);
if (retval instanceof Function) {
return new RhinoFunctionModel((Function) retval, scriptable, wrapper);
} else {
return wrapper.wrap(retval);
}
}
@Override
public TemplateModel get(int index) throws TemplateModelException {
Object retval = ScriptableObject.getProperty(scriptable, index);
if (retval instanceof Function) {
return new RhinoFunctionModel((Function) retval, scriptable, wrapper);
} else {
return wrapper.wrap(retval);
}
}
@Override
public boolean isEmpty() {
return scriptable.getIds().length == 0;
}
@Override
public TemplateCollectionModel keys() throws TemplateModelException {
return (TemplateCollectionModel) wrapper.wrap(scriptable.getIds());
}
@Override
public int size() {
return scriptable.getIds().length;
}
@Override
public TemplateCollectionModel values() throws TemplateModelException {
Object[] ids = scriptable.getIds();
Object[] values = new Object[ids.length];
for (int i = 0; i < values.length; i++) {
Object id = ids[i];
if (id instanceof Number) {
values[i] = ScriptableObject.getProperty(scriptable,
((Number) id).intValue());
} else {
values[i] = ScriptableObject.getProperty(scriptable,
String.valueOf(id));
}
}
return (TemplateCollectionModel) wrapper.wrap(values);
}
@Override
public boolean getAsBoolean() {
return Context.toBoolean(scriptable);
}
@Override
public Number getAsNumber() {
return Double.valueOf(Context.toNumber(scriptable));
}
@Override
public String getAsString() {
return Context.toString(scriptable);
}
Scriptable getScriptable() {
return scriptable;
}
BeansWrapper getWrapper() {
return wrapper;
}
@Override
public Object getAdaptedObject(Class hint) {
// FIXME: This does LS3 conversion, which is not very useful for us. Like it won't convert to List, Map, etc.
try {
return NativeJavaObject.coerceType(hint, scriptable);
} catch (EvaluatorException e) {
return NativeJavaObject.coerceType(Object.class, scriptable);
}
}
}
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