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.HiveMind;
018    import org.apache.hivemind.Location;
019    import org.apache.hivemind.internal.Module;
020    import org.apache.hivemind.schema.Translator;
021    import org.apache.hivemind.util.InstanceCreationUtils;
022    
023    /**
024     * Used to translate from a class name to an instance of the class.
025     * 
026     * @author Howard Lewis Ship
027     */
028    public class InstanceTranslator implements Translator
029    {
030        public Object translate(Module contributingModule, Class propertyType, String inputValue,
031                Location location)
032        {
033            if (HiveMind.isBlank(inputValue))
034                return null;
035    
036            return InstanceCreationUtils.createInstance(contributingModule, inputValue, location);
037        }
038    
039    }