001    // Copyright 2004, 2005 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.hivemind.service.impl;
016    
017    import java.util.Map;
018    
019    import org.apache.hivemind.Location;
020    import org.apache.hivemind.internal.Module;
021    import org.apache.hivemind.service.ObjectProvider;
022    
023    /**
024     * Implementation of {@link org.apache.hivemind.service.ObjectProvider} mapped to prefix
025     * "configuration:" for accessing configurations.
026     * 
027     * @author Howard Lewis Ship
028     */
029    public class ConfigurationObjectProvider implements ObjectProvider
030    {
031        /**
032         * A wrapper around {@link Module#getConfiguration(String)}. The locator is interpreteted as a
033         * configuration id.
034         */
035        public Object provideObject(Module contributingModule, Class propertyType, String locator,
036                Location location)
037        {
038            if (propertyType == Map.class && contributingModule.isConfigurationMappable(locator))
039                return contributingModule.getConfigurationAsMap(locator);
040    
041            return contributingModule.getConfiguration(locator);
042        }
043    
044    }