01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: *
17: */
18: package org.apache.lenya.cms.publication.templating;
19:
20: import java.util.ArrayList;
21: import java.util.List;
22:
23: import org.apache.excalibur.source.Source;
24: import org.apache.excalibur.source.SourceResolver;
25:
26: /**
27: * Source visitor to obtain all existing sources.
28: */
29: public class AllExistingSourceResolver implements SourceVisitor {
30:
31: public void visit(SourceResolver resolver, String sourceUri) {
32: Source source = null;
33: try {
34: source = resolver.resolveURI(sourceUri);
35: if (source.exists()) {
36: this .uris.add(sourceUri);
37: }
38: } catch (Exception e) {
39: throw new RuntimeException(e);
40: } finally {
41: if (source != null) {
42: resolver.release(source);
43: }
44: }
45: }
46:
47: private List uris = new ArrayList();
48:
49: /**
50: * @return All existing source URIs.
51: */
52: public String[] getUris() {
53: return (String[]) this .uris
54: .toArray(new String[this.uris.size()]);
55: }
56:
57: }
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