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.ken.util;
17
18 import java.util.ArrayList;
19 import java.util.List;
20
21 import org.w3c.dom.ls.LSInput;
22 import org.w3c.dom.ls.LSResourceResolver;
23
24 /**
25 * LSResourceResolver implementation that delegates in sequence to a list of LSResourceResolvers,
26 * returning the first match.
27 * @author Kuali Rice Team (rice.collab@kuali.org)
28 */
29 public class CompoundLSResourceResolver implements LSResourceResolver {
30 private final List<LSResourceResolver> resolvers;
31
32 /**
33 * Constructs a CompoundLSResourceResolver.java.
34 * @param first
35 * @param second
36 */
37 public CompoundLSResourceResolver(LSResourceResolver first, LSResourceResolver second) {
38 this.resolvers = new ArrayList<LSResourceResolver>(2);
39 this.resolvers.add(first);
40 this.resolvers.add(second);
41 }
42
43 /**
44 * Constructs a CompoundLSResourceResolver.java.
45 * @param resolvers
46 */
47 public CompoundLSResourceResolver(List<LSResourceResolver> resolvers) {
48 this.resolvers = resolvers;
49 }
50
51 /**
52 * @see org.w3c.dom.ls.LSResourceResolver#resolveResource(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String)
53 */
54 public LSInput resolveResource(String type, String namespaceURI, String publicId, String systemId, String baseURI) {
55 for (LSResourceResolver resolver: resolvers) {
56 LSInput input = resolver.resolveResource(type, namespaceURI, publicId, systemId, baseURI);
57 if (input != null) {
58 return input;
59 }
60 }
61 return null;
62 }
63 }