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

org.apache.lucene.store.Directory.openInput()
Returns a stream reading an existing file.

      writer.finish();
      assertEquals(valueCount, writer.ord());
      final long fp = out.getFilePointer();
      out.close();


      final IndexInput in = dir.openInput("out.bin", IOContext.DEFAULT);
      final MonotonicBlockPackedReader reader = new MonotonicBlockPackedReader(in, PackedInts.VERSION_CURRENT, blockSize, valueCount, random().nextBoolean());
      assertEquals(fp, in.getFilePointer());
      for (int i = 0; i < valueCount; ++i) {
        assertEquals("i=" +i, values[i], reader.get(i));
      }

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        ++i;
      }
    }
    writer.finish();
    out.close();
    final IndexInput in = dir.openInput("out.bin", IOContext.DEFAULT);
    final BlockPackedReaderIterator it = new BlockPackedReaderIterator(in, PackedInts.VERSION_CURRENT, blockSize, valueCount);
    it.skip(valueOffset);
    assertEquals(value, it.next());
    in.seek(0L);
    final BlockPackedReader reader = new BlockPackedReader(in, PackedInts.VERSION_CURRENT, blockSize, valueCount, random().nextBoolean());

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          long normSeek;


          if (singleNormFile) {
            normSeek = nextNormSeek;
            if (singleNormStream == null) {
              singleNormStream = d.openInput(fileName, context);
              openFiles.add(singleNormStream);
            }
            // All norms in the .nrm file can share a single IndexInput since
            // they are only used in a synchronized context.
            // If this were to change in the future, a clone could be done here.

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            // All norms in the .nrm file can share a single IndexInput since
            // they are only used in a synchronized context.
            // If this were to change in the future, a clone could be done here.
            normInput = singleNormStream;
          } else {
            normInput = d.openInput(fileName, context);
            openFiles.add(normInput);
            // if the segment was created in 3.2 or after, we wrote the header for sure,
            // and don't need to do the sketchy file size check. otherwise, we check 
            // if the size is exactly equal to maxDoc to detect a headerless file.
            // NOTE: remove this check in Lucene 5.0!

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          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();
          } else {
            dir.deleteFile("fst");
          }

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          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();
          } else {
            dir.deleteFile("fst");
          }

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          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();
          } else {
            dir.deleteFile("fst");
          }

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      final int FILE_SIZE = 1000;
      assert BUFFER_SIZE < FILE_SIZE;
      createFileWithRepeatableContent(dir, "RandomSampleFile.txt", FILE_SIZE);


      IndexInput indexInput = dir.openInput("RandomSampleFile.txt", IOContext.DEFAULT);
      assert indexInput.length() == FILE_SIZE;
      RepeatableLongByteSequence bytesGenerator = new RepeatableLongByteSequence();


      Random r = new Random();
      long seekPoint = 0;

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      Set other = new HashSet(Arrays.asList(dir.listAll()));


      // ok, file listing works.
      AssertJUnit.assertEquals(s, other);


      IndexInput ii = dir.openInput("Hello.txt", IOContext.DEFAULT);


      assert ii.length() == helloText.length();


      ByteArrayOutputStream baos = new ByteArrayOutputStream();

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         baos.write(ii.readByte());
      }


      assert new String(baos.toByteArray()).equals(helloText);


      ii = dir.openInput("World.txt", IOContext.DEFAULT);


      assert ii.length() == worldText.length();


      baos = new ByteArrayOutputStream();

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