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
015package org.apache.hivemind.schema.rules;
016
017import org.apache.hivemind.HiveMind;
018import org.apache.hivemind.Location;
019import org.apache.hivemind.internal.Module;
020import org.apache.hivemind.schema.Translator;
021import 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 */
028public 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}