Examples of org.apache.lucene.store.IndexInput.readByte()

Class org.apache.lucene.store.IndexInput

Examples of org.apache.lucene.store.IndexInput.readByte()

org.apache.lucene.store.IndexInput.readByte()
Reads and returns a single byte. @see IndexOutput#writeByte(byte)

        is.seek(is.length() - 10);
        byte b[] = new byte[100];
        is.readBytes(b, 0, 10);


        try {
            is.readByte();
            fail("Single byte read past end of file");
        } catch (IOException e) {
            /* success */
            //System.out.println("SUCCESS: single byte read past end of file: " + e);
        }

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        os.close();


        IndexInput in = fsdir.openInput(file, IOContext.DEFAULT);


        // This read primes the buffer in IndexInput
        in.readByte();


        // Close the file
        in.close();


        // ERROR: this call should fail, but succeeds because the buffer

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        // Close the file
        in.close();


        // ERROR: this call should fail, but succeeds because the buffer
        // is still filled
        in.readByte();


        // ERROR: this call should fail, but succeeds for some reason as well
        in.seek(1099);


        try {

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        in.seek(1099);


        try {
            // OK: this call correctly fails. We are now past the 1024 internal
            // buffer, so an actual IO is attempted, which fails
            in.readByte();
            fail("expected readByte() to throw exception");
        } catch (IOException e) {
          // expected exception
        }
    }

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      AssertJUnit.assertEquals(testTextAsBytes.length + 3, metadata.getSize());
      assert null != cache.get(new ChunkCacheKey(INDEXNAME, "MyNewFile.txt", 0, DirectoryBuilderImpl.DEFAULT_BUFFER_SIZE));


      // test contents by reading:
      IndexInput ii = dir.openInput("MyNewFile.txt", IOContext.DEFAULT);
      assert ii.readByte() == 1;
      assert ii.readByte() == 2;
      assert ii.readByte() == 3;
      byte[] buf = new byte[testTextAsBytes.length];


      ii.readBytes(buf, 0, testTextAsBytes.length);

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      assert null != cache.get(new ChunkCacheKey(INDEXNAME, "MyNewFile.txt", 0, DirectoryBuilderImpl.DEFAULT_BUFFER_SIZE));


      // test contents by reading:
      IndexInput ii = dir.openInput("MyNewFile.txt", IOContext.DEFAULT);
      assert ii.readByte() == 1;
      assert ii.readByte() == 2;
      assert ii.readByte() == 3;
      byte[] buf = new byte[testTextAsBytes.length];


      ii.readBytes(buf, 0, testTextAsBytes.length);
      ii.close();

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      // test contents by reading:
      IndexInput ii = dir.openInput("MyNewFile.txt", IOContext.DEFAULT);
      assert ii.readByte() == 1;
      assert ii.readByte() == 2;
      assert ii.readByte() == 3;
      byte[] buf = new byte[testTextAsBytes.length];


      ii.readBytes(buf, 0, testTextAsBytes.length);
      ii.close();

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      long seekPoint = 0;
      // Now it reads some random byte and it compares to the expected byte
      for (int i = 0; i < FILE_SIZE; i++) {
         if (seekPoint == i) {
            byte expectedByte = bytesGenerator.nextByte();
            byte actualByte = indexInput.readByte();
            assert expectedByte == actualByte;
            seekPoint = indexInput.getFilePointer() + r.nextInt(10);
            indexInput.seek(seekPoint);
         } else {
            bytesGenerator.nextByte();

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      IndexInput indexInput = dir.openInput(fileName, IOContext.DEFAULT);
      AssertJUnit.assertEquals(contentFileSizeExpected, indexInput.length());
      RepeatableLongByteSequence bytesGenerator = new RepeatableLongByteSequence();


      for (int i = 0; i < contentFileSizeExpected; i++) {
         AssertJUnit.assertEquals(bytesGenerator.nextByte(), indexInput.readByte());
      }
      indexInput.close();
   }


   /**

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


      ByteArrayOutputStream baos = new ByteArrayOutputStream();


      for (int i = 0; i < ii.length(); i++) {
         baos.write(ii.readByte());
      }


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


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

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