    001// Copyright 2006, 2012 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
    017import java.util.Locale;
    018import java.util.Map;
    019import java.util.Set;
    020
    021import org.apache.tapestry5.commons.Messages;
    022import org.apache.tapestry5.commons.util.AbstractMessages;
    023
    024/**
    025 * Implementation of {@link Messages} based on a simple Map (of string keys and values).
    026 */
    027public class MapMessages extends AbstractMessages
    028{
    029    private final Map<String, String> properties;
    030
    031
    032    /**
    033     * A new instance <strong>retaining</strong> (not copying) the provided map.
    034     */
    035    public MapMessages(Locale locale, Map<String, String> properties)
    036    {
    037        super(locale);
    038
    039        this.properties = properties;
    040    }
    041
    042
    043    @Override
    044    protected String valueForKey(String key)
    045    {
    046        return properties.get(key);
    047    }
    048
    049    public Set<String> getKeys()
    050    {
    051        return properties.keySet();
    052    }
    053}