Package org.apache.lucene.store

Examples of org.apache.lucene.store.RAMDirectory.list()

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        writer.close();

        long gen = SegmentInfos.getCurrentSegmentGeneration(dir);
        assertTrue("segment generation should be > 1 but got " + gen, gen > 1);

        String[] files = dir.list();
        for(int i=0;i<files.length;i++) {
          if (files[i].endsWith(".cfs")) {
            dir.deleteFile(files[i]);
            break;
          }
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        writer.close();

        long gen = SegmentInfos.getCurrentSegmentGeneration(dir);
        assertTrue("segment generation should be > 1 but got " + gen, gen > 1);

        String[] files = dir.list();
        for(int i=0;i<files.length;i++) {
          if (files[i].endsWith(".cfs")) {
            dir.deleteFile(files[i]);
            break;
          }
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    public void testSmallRAMBuffer() throws IOException {
      RAMDirectory dir = new RAMDirectory();     
      IndexWriter writer  = new IndexWriter(dir, new WhitespaceAnalyzer(), true);
      writer.setRAMBufferSizeMB(0.000001);
      int lastNumFile = dir.list().length;
      for(int j=0;j<9;j++) {
        Document doc = new Document();
        doc.add(new Field("field", "aaa" + j, Field.Store.YES, Field.Index.TOKENIZED));
        writer.addDocument(doc);
        int numFile = dir.list().length;
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      int lastNumFile = dir.list().length;
      for(int j=0;j<9;j++) {
        Document doc = new Document();
        doc.add(new Field("field", "aaa" + j, Field.Store.YES, Field.Index.TOKENIZED));
        writer.addDocument(doc);
        int numFile = dir.list().length;
        // Verify that with a tiny RAM buffer we see new
        // segment after every doc
        assertTrue(numFile > lastNumFile);
        lastNumFile = numFile;
      }
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      for(int j=1;j<52;j++) {
        Document doc = new Document();
        doc.add(new Field("field", "aaa" + j, Field.Store.YES, Field.Index.TOKENIZED));
        writer.addDocument(doc);
        _TestUtil.syncConcurrentMerges(writer);
        long gen = SegmentInfos.generationFromSegmentsFileName(SegmentInfos.getCurrentSegmentFileName(dir.list()));
        if (j == 1)
          lastGen = gen;
        else if (j < 10)
          // No new files should be created
          assertEquals(gen, lastGen);
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      long lastGen = -1;
      for(int j=1;j<52;j++) {
        writer.deleteDocuments(new Term("field", "aaa" + j));
        _TestUtil.syncConcurrentMerges(writer);
        long gen = SegmentInfos.generationFromSegmentsFileName(SegmentInfos.getCurrentSegmentFileName(dir.list()));
        if (j == 1)
          lastGen = gen;
        else if (j < 10) {
          // No new files should be created
          assertEquals(gen, lastGen);
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      // String[] files = startDir.list();
      long diskUsage = startDir.sizeInBytes();

      long startDiskUsage = 0;
      String[] files = startDir.list();
      for(int i=0;i<files.length;i++) {
        startDiskUsage += startDir.fileLength(files[i]);
      }

      for(int iter=0;iter<6;iter++) {
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      // String[] files = startDir.list();
      long diskUsage = startDir.sizeInBytes();

      long startDiskUsage = 0;
      String[] files = startDir.list();
      for(int i=0;i<files.length;i++) {
        startDiskUsage += startDir.fileLength(files[i]);
      }

      for(int iter=0;iter<6;iter++) {
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        writer.close();

        long gen = SegmentInfos.getCurrentSegmentGeneration(dir);
        assertTrue("segment generation should be > 1 but got " + gen, gen > 1);

        String[] files = dir.list();
        for(int i=0;i<files.length;i++) {
          if (files[i].endsWith(".cfs")) {
            dir.deleteFile(files[i]);
            break;
          }
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        if (gen > 0) {
          // Now that we've removed a commit point, which
          // should have orphan'd at least one index file.
          // Open & close a writer and assert that it
          // actually removed something:
          int preCount = dir.list().length;
          writer = new IndexWriter(dir, false, new WhitespaceAnalyzer(), false, policy);
          writer.close();
          int postCount = dir.list().length;
          assertTrue(postCount < preCount);
        }
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