Package org.apache.lucene.store

Examples of org.apache.lucene.store.IndexOutput.writeLong()

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            // adjust the offsets later
            Iterator it = entries.iterator();
            while(it.hasNext()) {
                FileEntry fe = (FileEntry) it.next();
                fe.directoryOffset = os.getFilePointer();
                os.writeLong(0);    // for now
                os.writeString(fe.file);
            }

            // Open the files and copy their data into the stream.
            // Remember the locations of each file's data section.
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            // Write the data offsets into the directory of the compound stream
            it = entries.iterator();
            while(it.hasNext()) {
                FileEntry fe = (FileEntry) it.next();
                os.seek(fe.directoryOffset);
                os.writeLong(fe.dataOffset);
            }

            // Close the output stream. Set the os to null before trying to
            // close so that if an exception occurs during the close, the
            // finally clause below will not attempt to close the stream
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    boolean success = false;

    try {
      output.writeInt(CURRENT_FORMAT); // write FORMAT
      output.writeLong(++version); // every write changes
                                   // the index
      output.writeInt(counter); // write counter
      output.writeInt(size()); // write infos
      for (int i = 0; i < size(); i++) {
        info(i).write(output);
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    try {
      output = directory.createOutput(IndexFileNames.SEGMENTS_GEN);
      try {
        output.writeInt(FORMAT_LOCKLESS);
        output.writeLong(generation);
        output.writeLong(generation);
      } finally {
        output.close();
      }
    } catch (IOException e) {
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    try {
      output = directory.createOutput(IndexFileNames.SEGMENTS_GEN);
      try {
        output.writeInt(FORMAT_LOCKLESS);
        output.writeLong(generation);
        output.writeLong(generation);
      } finally {
        output.close();
      }
    } catch (IOException e) {
      // It's OK if we fail to write this file since it's
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    boolean success = false;

    try {
      output.writeInt(CURRENT_FORMAT); // write FORMAT
      output.writeLong(++version); // every write changes
                                   // the index
      output.writeInt(counter); // write counter
      output.writeInt(size()); // write infos
      for (int i = 0; i < size(); i++) {
        info(i).write(output);
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    try {
      output = directory.createOutput(IndexFileNames.SEGMENTS_GEN);
      try {
        output.writeInt(FORMAT_LOCKLESS);
        output.writeLong(generation);
        output.writeLong(generation);
      } finally {
        output.close();
      }
    } catch (IOException e) {
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    try {
      output = directory.createOutput(IndexFileNames.SEGMENTS_GEN);
      try {
        output.writeInt(FORMAT_LOCKLESS);
        output.writeLong(generation);
        output.writeLong(generation);
      } finally {
        output.close();
      }
    } catch (IOException e) {
      // It's OK if we fail to write this file since it's
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  public void testEndPointer() throws IOException {
    final Directory dir = newDirectory();
    final int valueCount = RandomInts.randomIntBetween(random(), 1, 1000);
    final IndexOutput out = dir.createOutput("tests.bin", newIOContext(random()));
    for (int i = 0; i < valueCount; ++i) {
      out.writeLong(0);
    }
    out.close();
    final IndexInput in = dir.openInput("tests.bin", newIOContext(random()));
    for (int version = PackedInts.VERSION_START; version <= PackedInts.VERSION_CURRENT; ++version) {
      for (int bpv = 1; bpv <= 64; ++bpv) {
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  public static void writeSegmentsGen(Directory dir, long generation) {
    try {
      IndexOutput genOutput = dir.createOutput(IndexFileNames.SEGMENTS_GEN, IOContext.READONCE);
      try {
        genOutput.writeInt(FORMAT_SEGMENTS_GEN_CURRENT);
        genOutput.writeLong(generation);
        genOutput.writeLong(generation);
      } finally {
        genOutput.close();
        dir.sync(Collections.singleton(IndexFileNames.SEGMENTS_GEN));
      }
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