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.schema.rules;
016    
017    import org.apache.hivemind.Location;
018    import org.apache.hivemind.internal.Module;
019    import org.apache.hivemind.schema.Translator;
020    import org.apache.hivemind.util.IdUtils;
021    
022    /**
023     * A {@link org.apache.hivemind.schema.Translator} that acts as a wrapper around the
024     * {@link org.apache.hivemind.util.IdUtils#qualify(String, String)} method.
025     * 
026     * @author Howard Lewis Ship
027     */
028    public class QualifiedIdTranslator implements Translator
029    {
030        /**
031         * @return null if the inputValue is null, otherwise, invokes
032         *         {@link IdUtils#qualify(String, String)}.
033         */
034        public Object translate(Module contributingModule, Class propertyType, String inputValue,
035                Location location)
036        {
037            if (inputValue == null)
038                return null;
039    
040            return IdUtils.qualify(contributingModule.getModuleId(), inputValue);
041        }
042    
043    }