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.

  @Nightly
  public void testBlockReaderOverflow() throws IOException {
    final long valueCount = _TestUtil.nextLong(random(), 1L + Integer.MAX_VALUE, (long) Integer.MAX_VALUE * 2);
    final int blockSize = 1 << _TestUtil.nextInt(random(), 20, 22);
    final Directory dir = newDirectory();
    final IndexOutput out = dir.createOutput("out.bin", IOContext.DEFAULT);
    final BlockPackedWriter writer = new BlockPackedWriter(out, blockSize);
    long value = random().nextInt() & 0xFFFFFFFFL;
    long valueOffset = _TestUtil.nextLong(random(), 0, valueCount - 1);
    for (long i = 0; i < valueCount; ) {
      assertEquals(i, writer.ord());

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          w.close();
          System.out.println("Wrote FST to out.dot");
        }


        Directory dir = FSDirectory.open(new File(dirOut));
        IndexOutput out = dir.createOutput("fst.bin", IOContext.DEFAULT);
        fst.save(out);
        out.close();
        System.out.println("Saved FST to fst.bin.");


        if (!verify) {

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          }
          assertEquals(count, upto);


          if (verify == 0) {
            System.out.println("\nTEST: save/load FST and re-verify");
            IndexOutput out = dir.createOutput("fst", IOContext.DEFAULT);
            fst.save(out);
            out.close();
            IndexInput in = dir.openInput("fst", IOContext.DEFAULT);
            fst = new FST<Object>(in, outputs);
            in.close();

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          }
          assertEquals(count, upto);


          if (verify == 0) {
            System.out.println("\nTEST: save/load FST and re-verify");
            IndexOutput out = dir.createOutput("fst", IOContext.DEFAULT);
            fst.save(out);
            out.close();
            IndexInput in = dir.openInput("fst", IOContext.DEFAULT);
            fst = new FST<BytesRef>(in, outputs);
            in.close();

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          }
          assertEquals(count, upto);


          if (verify == 0) {
            System.out.println("\nTEST: save/load FST and re-verify");
            IndexOutput out = dir.createOutput("fst", IOContext.DEFAULT);
            fst.save(out);
            out.close();
            IndexInput in = dir.openInput("fst", IOContext.DEFAULT);
            fst = new FST<Long>(in, outputs);
            in.close();

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    public void testDummy() throws Exception {
      Directory dir = newMockDirectory();
      IndexWriter iw = new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, null));
      iw.addDocument(new Document());
      iw.close();
      IndexOutput output = dir.createOutput("_hello.world", IOContext.DEFAULT);
      output.writeString("i am unreferenced!");
      output.close();
      dir.sync(Collections.singleton("_hello.world"));
      dir.close();
    }

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    final Directory d = newFSDirectory(_TestUtil.getTempDir("CFSManySubFiles"));
    final int FILE_COUNT = atLeast(500);


    for(int fileIdx=0;fileIdx<FILE_COUNT;fileIdx++) {
      IndexOutput out = d.createOutput("file." + fileIdx, newIOContext(random()));
      out.writeByte((byte) fileIdx);
      out.close();
    }
    
    final CompoundFileDirectory cfd = new CompoundFileDirectory(d, "c.cfs", newIOContext(random()), true);

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      Cache cache = cacheManager.getCache();
      Directory dir = DirectoryBuilder.newDirectoryInstance(cache, cache, cache, INDEXNAME).chunkSize(BUFFER_SIZE).create();


      String fileName = "SomeText.txt";
      IndexOutput io = dir.createOutput(fileName, IOContext.DEFAULT);
      RepeatableLongByteSequence bytesGenerator = new RepeatableLongByteSequence();
      //It writes repeatable text
      final int REPEATABLE_BUFFER_SIZE = 1501;
      for (int i = 0; i < REPEATABLE_BUFFER_SIZE; i++) {
         io.writeByte(bytesGenerator.nextByte());

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      final int BUFFER_SIZE = 64;


      Cache cache = cacheManager.getCache();
      Directory dir = DirectoryBuilder.newDirectoryInstance(cache, cache, cache, INDEXNAME).chunkSize(BUFFER_SIZE).create();


      IndexOutput io = dir.createOutput("MyNewFile.txt", IOContext.DEFAULT);


      io.writeByte((byte) 66);
      io.writeByte((byte) 69);


      io.flush();

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      ii.close();


      assert new String(new byte[] { 66, 69 }).equals(new String(buf).trim());


      String testText = "This is some rubbish again that will span more than one chunk - one hopes.  Who knows, maybe even three or four chunks.";
      io = dir.createOutput("MyNewFile.txt", IOContext.DEFAULT);
      io.seek(0);
      io.writeBytes(testText.getBytes(), 0, testText.length());
      io.close();
      // now compare.
      byte[] chunk1 = (byte[]) cache.get(new ChunkCacheKey(INDEXNAME, "MyNewFile.txt", 0, BUFFER_SIZE));

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