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}