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Java > Open Source Codes > org > outerj > daisy > linkextraction > AbstractLinkExtractor


1 /*
2  * Copyright 2004 Outerthought bvba and Schaubroeck nv
3  *
4  * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
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.outerj.daisy.linkextraction;
17
18 import org.outerj.daisy.repository.Part;
19 import org.outerj.daisy.xmlutil.LocalSAXParserFactory;
20 import org.xml.sax.InputSource JavaDoc;
21 import org.xml.sax.ContentHandler JavaDoc;
22
23 import javax.xml.parsers.SAXParser JavaDoc;
24 import java.io.InputStream JavaDoc;
25
26 public abstract class AbstractLinkExtractor implements LinkExtractor {
27     public void extractLinks(Part part, LinkCollector linkCollector, long defaultBranchId, long defaultLanguageId) throws Exception JavaDoc {
28         InputStream JavaDoc is = null;
29         try {
30             SAXParser JavaDoc parser = LocalSAXParserFactory.getSAXParserFactory().newSAXParser();
31             parser.getXMLReader().setContentHandler(getContentHandler(part, linkCollector, defaultBranchId, defaultLanguageId));
32             is = part.getDataStream();
33             parser.getXMLReader().parse(new InputSource JavaDoc(is));
34         } finally {
35             if (is != null)
36                 is.close();
37         }
38     }
39
40     public abstract ContentHandler JavaDoc getContentHandler(Part part, LinkCollector linkCollector, long defaultBranchId, long defaultLanguageId);
41 }
42
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