/*
* 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 org.apache.myfaces.trinidadinternal.facelets;
import com.sun.facelets.FaceletContext;
import com.sun.facelets.tag.MetaRule;
import com.sun.facelets.tag.Metadata;
import com.sun.facelets.tag.MetadataTarget;
import com.sun.facelets.tag.TagAttribute;
import com.sun.facelets.tag.TagAttributeException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Locale;
class LocalePropertyTagRule extends MetaRule
{
static LocalePropertyTagRule Instance = new LocalePropertyTagRule();
private static class LiteralPropertyMetadata extends Metadata
{
public LiteralPropertyMetadata(Method method, TagAttribute attribute)
{
_method = method;
_attribute = attribute;
}
public void applyMetadata(FaceletContext ctx, Object instance)
{
if (_params == null)
{
Locale loc = new Locale(_attribute.getValue(ctx));
_params = new Object[]{loc};
}
try
{
_method.invoke(instance, _params);
}
catch (InvocationTargetException e)
{
throw new TagAttributeException(_attribute, e.getCause());
}
catch (Exception e)
{
throw new TagAttributeException(_attribute, e);
}
}
private final Method _method;
private final TagAttribute _attribute;
private Object[] _params;
}
public Metadata applyRule(String name, TagAttribute attribute,
MetadataTarget meta)
{
if (meta.getPropertyType(name) == _LOCALE_TYPE && attribute.isLiteral())
{
Method m = meta.getWriteMethod(name);
// if the property is writable
if (m != null)
{
return new LiteralPropertyMetadata(m, attribute);
}
}
return null;
}
static private final Class<? extends Locale> _LOCALE_TYPE = Locale.class;
}