001 /** 002 * The contents of this file are subject to the Mozilla Public License Version 1.1 003 * (the "License"); you may not use this file except in compliance with the License. 004 * You may obtain a copy of the License at http://www.mozilla.org/MPL/ 005 * Software distributed under the License is distributed on an "AS IS" basis, 006 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the 007 * specific language governing rights and limitations under the License. 008 * 009 * The Original Code is "ReflectionUtil.java". Description: 010 * "Utility class for reflection" 011 * 012 * The Initial Developer of the Original Code is University Health Network. Copyright (C) 013 * 2001. All Rights Reserved. 014 * 015 * Contributor(s): 016 * 017 * Alternatively, the contents of this file may be used under the terms of the 018 * GNU General Public License (the ???GPL???), in which case the provisions of the GPL are 019 * applicable instead of those above. If you wish to allow use of your version of this 020 * file only under the terms of the GPL and not to allow others to use your version 021 * of this file under the MPL, indicate your decision by deleting the provisions above 022 * and replace them with the notice and other provisions required by the GPL License. 023 * If you do not delete the provisions above, a recipient may use your version of 024 * this file under either the MPL or the GPL. 025 * 026 */ 027 package ca.uhn.hl7v2.util; 028 029 import java.lang.reflect.Constructor; 030 import java.lang.reflect.InvocationTargetException; 031 032 import ca.uhn.hl7v2.HL7Exception; 033 import ca.uhn.hl7v2.model.Message; 034 import ca.uhn.hl7v2.parser.ModelClassFactory; 035 036 public class ReflectionUtil { 037 038 /** Non instantiable */ 039 private ReflectionUtil() { 040 // nothing 041 } 042 043 public static Message instantiateMessage(Class<? extends Message> theType, ModelClassFactory theModelClassFactory) throws HL7Exception { 044 try { 045 Constructor<? extends Message> constructor = theType.getConstructor(new Class<?>[] {ModelClassFactory.class}); 046 Message message = constructor.newInstance(theModelClassFactory); 047 return message; 048 } catch (SecurityException e) { 049 throw new HL7Exception("Failed to instantiate message type " + theType.getCanonicalName() + ": ", e); 050 } catch (NoSuchMethodException e) { 051 throw new HL7Exception("Failed to instantiate message type " + theType.getCanonicalName() + ": ", e); 052 } catch (IllegalArgumentException e) { 053 throw new HL7Exception("Failed to instantiate message type " + theType.getCanonicalName() + ": ", e); 054 } catch (InstantiationException e) { 055 throw new HL7Exception("Failed to instantiate message type " + theType.getCanonicalName() + ": ", e); 056 } catch (IllegalAccessException e) { 057 throw new HL7Exception("Failed to instantiate message type " + theType.getCanonicalName() + ": ", e); 058 } catch (InvocationTargetException e) { 059 throw new HL7Exception("Failed to instantiate message type " + theType.getCanonicalName() + ": ", e); 060 } 061 } 062 063 }