/*
* 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.el;
import java.util.AbstractMap;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
import org.apache.myfaces.trinidadinternal.share.util.FastMessageFormat;
/**
* Map implementation that provides a functor for message formatting.
* <p>
*/
public class FormatterMap extends AbstractMap<Object, Map<Object,String>>
{
static public Map<Object, Map<Object,String>> sharedInstance()
{
return _INSTANCE;
}
private FormatterMap()
{
}
@Override
public Map<Object,String> get(Object key)
{
if (key == null)
return Collections.emptyMap();
return new FunctorMap(key);
}
@Override
public Set<Map.Entry<Object, Map<Object,String>>> entrySet()
{
return Collections.emptySet();
}
static private final class FunctorMap extends AbstractMap<Object, String>
{
public FunctorMap(Object key)
{
// Assumes check against null above
_format = new FastMessageFormat(key.toString());
}
@Override
public String get(Object key)
{
return _format.format(new Object[]{key});
}
@Override
public Set<Map.Entry<Object, String>> entrySet()
{
return Collections.emptySet();
}
private final FastMessageFormat _format;
}
static private final Map<Object, Map<Object,String>> _INSTANCE = new FormatterMap();
}