    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
    015    package org.apache.tapestry5.internal.services;
    016
    017    /**
    018     * An implementation  of {@link Messages} that is based on a map.
    019     *
    020     */
    021
    022    import org.apache.tapestry5.ioc.Messages;
    023    import org.apache.tapestry5.ioc.util.AbstractMessages;
    024
    025    import java.util.Locale;
    026    import java.util.Map;
    027
    028    /**
    029     * Implementation of {@link Messages} based on a simple Map (of string keys and values).
    030     */
    031    public 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    }