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1
2
3
4 package net.nutch.indexer;
5
6 import java.util.HashMap  ;
7
8 import org.apache.lucene.document.Document;
9
10 import net.nutch.plugin.*;
11 import net.nutch.parse.Parse;
12 import net.nutch.fetcher.FetcherOutput;
13
14
15 public class IndexingFilters {
16
17 private static final IndexingFilter[] CACHE;
18 static {
19 try {
20 ExtensionPoint point = PluginRepository.getInstance()
21 .getExtensionPoint(IndexingFilter.X_POINT_ID);
22 if (point == null)
23 throw new RuntimeException (IndexingFilter.X_POINT_ID+" not found.");
24 Extension[] extensions = point.getExtentens();
25 HashMap filterMap = new HashMap ();
26 for (int i = 0; i < extensions.length; i++) {
27 Extension extension = extensions[i];
28 IndexingFilter filter = (IndexingFilter)extension.getExtensionInstance();
29 if (!filterMap.containsKey(filter.getClass().getName())) {
30 filterMap.put(filter.getClass().getName(), filter);
31 }
32 }
33 CACHE = (IndexingFilter[])filterMap.values().toArray(new IndexingFilter[0]);
34 } catch (PluginRuntimeException e) {
35 throw new RuntimeException (e);
36 }
37 }
38
39 private IndexingFilters() {}
41
42 public static Document filter(Document doc, Parse parse, FetcherOutput fo)
43 throws IndexingException {
44
45 for (int i = 0; i < CACHE.length; i++) {
46 doc = CACHE[i].filter(doc, parse, fo);
47 }
48
49 return doc;
50 }
51 }
52 |
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