Examples of org.apache.lucene.store.Directory.createOutput()

org.apache.lucene.store.Directory.createOutput()
Creates a new, empty file in the directory with the given name. Returns a stream writing this file.

            store = new JEDirectory(txn, index, blocks);


            for (int i = 0; i < count; i++) {
                String name = i + ".dat";
                int length = gen.nextInt() & LENGTH_MASK;
                IndexOutput file = store.createOutput(name);


                totalLength += length;


                for (int j = 0; j < length; j++) {
                    byte b = (byte) (gen.nextInt() & 0x7F);

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            store = new JEDirectory(txn, index, blocks);


            for (int i = 0; i < count; i++) {
                String name = i + ".dat";
                int length = gen.nextInt() & LENGTH_MASK;
                IndexOutput file = store.createOutput(name);


                totalLength += length;


                for (int j = 0; j < length; j++) {
                    byte b = (byte) (gen.nextInt() & 0x7F);

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            store = new JEDirectory(txn, index, blocks);


            for (int i = 0; i < count; i++) {
                String name = i + ".dat";
                int length = gen.nextInt() & LENGTH_MASK;
                IndexOutput file = store.createOutput(name);
                byte[] data = new byte[length];


                totalLength += length;
                gen.nextBytes(data);
                file.writeBytes(data, length);

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        String fileNameIn = SegmentInfos.getCurrentSegmentFileName(dir);
        String fileNameOut = IndexFileNames.fileNameFromGeneration(IndexFileNames.SEGMENTS,
                                                                   "",
                                                                   1+gen);
        IndexInput in = dir.openInput(fileNameIn);
        IndexOutput out = dir.createOutput(fileNameOut);
        long length = in.length();
        for(int i=0;i<length-1;i++) {
          out.writeByte(in.readByte());
        }
        in.close();

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        String fileNameIn = SegmentInfos.getCurrentSegmentFileName(dir);
        String fileNameOut = IndexFileNames.fileNameFromGeneration(IndexFileNames.SEGMENTS,
                                                                   "",
                                                                   1+gen);
        IndexInput in = dir.openInput(fileNameIn);
        IndexOutput out = dir.createOutput(fileNameOut);
        long length = in.length();
        for(int i=0;i<length-1;i++) {
          out.writeByte(in.readByte());
        }
        in.close();

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


    final String segmentsFileName = SegmentInfos.getCurrentSegmentFileName(dir);
    IndexInput in = dir.openInput(segmentsFileName);
    IndexOutput out = dir.createOutput(IndexFileNames.fileNameFromGeneration(IndexFileNames.SEGMENTS, "", 1+gen));
    out.copyBytes(in, in.length()-1);
    byte b = in.readByte();
    out.writeByte((byte) (1+b));
    out.close();
    in.close();

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        Directory dest = getDirectory();
        String[] files = dir.list();
        for (int i = 0; i < files.length; i++) {
            IndexInput in = dir.openInput(files[i]);
            try {
                IndexOutput out = dest.createOutput(files[i]);
                try {
                    long remaining = in.length();
                    while (remaining > 0) {
                        int num = (int) Math.min(remaining, buffer.length);
                        in.readBytes(buffer, 0, num);

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        newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
    iw.addDocument(new Document());
    iw.close();
    try {
      // Create my own random file:
      IndexOutput out = dir.createOutput("myrandomfile", newIOContext(random()));
      out.writeByte((byte) 42);
      out.close();
      
      new IndexWriter(dir, newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random()))).close();

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  // this file will be gone.
  public void testOtherFiles2() throws Throwable {
    Directory dir = newDirectory();
    try {
      // Create my own random file:
      IndexOutput out = dir.createOutput("_a.frq", newIOContext(random()));
      out.writeByte((byte) 42);
      out.close();
      
      new IndexWriter(dir, newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random()))).close();

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


    final String segmentsFileName = SegmentInfos.getCurrentSegmentFileName(dir);
    IndexInput in = dir.openInput(segmentsFileName);
    IndexOutput out = dir.createOutput(IndexFileNames.fileNameFromGeneration(IndexFileNames.SEGMENTS, "", 1+gen));
    out.copyBytes(in, in.length()-1);
    byte b = in.readByte();
    out.writeByte((byte) (1+b));
    out.close();
    in.close();

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