001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of the Granite Data Services Platform.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 * USA, or see <http://www.gnu.org/licenses/>.
021 */
022 package org.granite.messaging.service;
023
024 import java.lang.reflect.Method;
025 import java.util.HashMap;
026 import java.util.Map;
027
028 import javax.ejb.Remove;
029 import javax.ejb.Stateful;
030
031 import org.granite.util.TypeUtil;
032 import org.granite.util.XMap;
033
034 /**
035 * @author Franck WOLFF
036 */
037 public class EjbServiceMetadata {
038
039 private boolean stateful = false;
040 private final Map<Method, Boolean> removeMethods = new HashMap<Method, Boolean>();
041
042 /**
043 * Default constructor. Should only be used by the externalization mechanism.
044 */
045 public EjbServiceMetadata() {
046 }
047
048 public EjbServiceMetadata(Class<?> scannedClass, Class<?> invokeeClass) {
049 stateful = scannedClass.isAnnotationPresent(Stateful.class);
050
051 if (stateful) {
052 for (Method method : scannedClass.getMethods()) {
053 Remove remove = method.getAnnotation(Remove.class);
054 if (remove != null) {
055 try {
056 method = invokeeClass.getMethod(method.getName(), method.getParameterTypes());
057 removeMethods.put(method, Boolean.valueOf(remove.retainIfException()));
058 } catch (Exception e) {
059 // ignore (invokee interface may not expose this remove method)...
060 }
061 }
062 }
063 }
064 }
065
066 public EjbServiceMetadata(XMap properties, Class<?> invokeeClass) {
067 stateful = properties.containsKey("ejb-stateful");
068
069 if (stateful) {
070 for (XMap removeMethod : properties.getAll("ejb-stateful/remove-method")) {
071
072 String signature = removeMethod.get("signature");
073 if (signature == null)
074 throw new ServiceException("Missing signature in remove-method declaration: " + properties);
075
076 Boolean retainIfException = Boolean.valueOf(removeMethod.get("retain-if-exception"));
077
078 try {
079 removeMethods.put(TypeUtil.getMethod(invokeeClass, signature), retainIfException);
080 }
081 catch (NoSuchMethodException e) {
082 throw new ServiceException("Could not find method: " + invokeeClass.getName() + "." + signature);
083 }
084 }
085 }
086 }
087
088 public boolean isStateful() {
089 return stateful;
090 }
091
092 public boolean isRemoveMethod(Method method) {
093 return removeMethods.containsKey(method);
094 }
095
096 public boolean getRetainIfException(Method method) {
097 return removeMethods.get(method).booleanValue();
098 }
099 }