1 /**
2 * Copyright 2005-2014 The Kuali Foundation
3 *
4 * Licensed under the Educational Community License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.opensource.org/licenses/ecl2.php
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.kuali.rice.ksb.impl.cxf.interceptors;
17
18 import org.apache.cxf.interceptor.Fault;
19 import org.apache.cxf.message.Message;
20 import org.apache.cxf.phase.AbstractPhaseInterceptor;
21 import org.apache.cxf.phase.Phase;
22 import org.kuali.rice.core.api.util.collect.CollectionUtils;
23
24 import java.util.List;
25
26 /**
27 * A CXF Interceptor that binds itself to the USER_LOGICAL phase to be used on inbound
28 * messages. This interceptor is invoked in the interceptor chain after unmarshalling
29 * from XML to Java has occurred. The role of this interceptor is to ensure that any
30 * Collection (and specifically List, Set, or Map) used in a @WebMethod is ultimately of the
31 * expected immutable type returned from the local service.
32 */
33 @SuppressWarnings("unused")
34 public class ImmutableCollectionsInInterceptor extends AbstractPhaseInterceptor<Message> {
35
36 /**
37 * Instantiates an ImmutableCollectionsInInterceptor and adds it to the USER_LOGICAL phase.
38 */
39 public ImmutableCollectionsInInterceptor() {
40 super(Phase.USER_LOGICAL);
41 }
42
43 @Override
44 public void handleMessage(final Message message) throws Fault {
45 try {
46 List contents = message.getContent(List.class);
47 if (contents != null) {
48 for (Object o : contents) {
49 CollectionUtils.makeUnmodifiableAndNullSafe(o);
50 }
51 }
52 } catch (IllegalAccessException e) {
53 throw new Fault(e);
54 }
55 }
56 }