001// Copyright 2006 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry5.internal.services;
016
017/**
018 * An implementation  of {@link Messages} that is based on a map.
019 *
020 */
021
022import org.apache.tapestry5.ioc.Messages;
023import org.apache.tapestry5.ioc.util.AbstractMessages;
024
025import java.util.Locale;
026import java.util.Map;
027
028/**
029 * Implementation of {@link Messages} based on a simple Map (of string keys and values).
030 */
031public class MapMessages extends AbstractMessages
032{
033    private final Map<String, String> properties;
034
035
036    /**
037     * A new instance <strong>retaining</strong> (not copying) the provided map.
038     */
039    public MapMessages(Locale locale, Map<String, String> properties)
040    {
041        super(locale);
042
043        this.properties = properties;
044    }
045
046
047    @Override
048    protected String valueForKey(String key)
049    {
050        return properties.get(key);
051    }
052}