Examples of com.esotericsoftware.kryo.io.Output

com.esotericsoftware.kryo.io.Output
An OutputStream that buffers data in a byte array and optionally flushes to another OutputStream. Utility methods are provided for efficiently writing primitive types and strings. Encoding of integers: BIG_ENDIAN is used for storing fixed native size integer values LITTLE_ENDIAN is used for a variable length encoding of integer values @author Nathan Sweet


      long start = System.nanoTime();


      for (int j = 0; j < ITER_CNT; j++) {


        Output kryoOut = null;


        kryoOut = new Output(out);


        marsh.writeObject(kryoOut, obj);
        kryoOut.close();
        // U.close(kryoOut, null);


        Input kryoIn = null;


        kryoIn = new Input(kryoOut.getBuffer(), 0, kryoOut.position());


        newObj = marsh.readObject(kryoIn, SampleObject.class);
        kryoIn.close();
        // U.close(kryoIn, null);
      }

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      long start = System.nanoTime();


      for (int j = 0; j < ITER_CNT; j++) {


        Output kryoOut = null;


        kryoOut = new FastOutput(out);


        marsh.writeObject(kryoOut, obj);
        kryoOut.close();
        // U.close(kryoOut, null);


        Input kryoIn = null;


        kryoIn = new FastInput(kryoOut.getBuffer(), 0, kryoOut.position());


        newObj = marsh.readObject(kryoIn, SampleObject.class);
        kryoIn.close();
        // U.close(kryoIn, null);
      }

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      long start = System.nanoTime();


      for (int j = 0; j < ITER_CNT; j++) {


        Output kryoOut = null;


        kryoOut = new UnsafeOutput(out);


        marsh.writeObject(kryoOut, obj);
        kryoOut.close();
        // U.close(kryoOut, null);


        Input kryoIn = null;


        kryoIn = new UnsafeInput(kryoOut.getBuffer(), 0, kryoOut.position());


        newObj = marsh.readObject(kryoIn, SampleObject.class);
        kryoIn.close();
        // U.close(kryoIn, null);
      }

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      long start = System.nanoTime();


      for (int j = 0; j < ITER_CNT; j++) {


        Output kryoOut = null;


        kryoOut = new UnsafeOutput(out);


        marsh.writeObject(kryoOut, obj);
        kryoOut.close();
        // U.close(kryoOut, null);


        Input kryoIn = null;


        kryoIn = new UnsafeInput(kryoOut.getBuffer(), 0, kryoOut.position());


        newObj = marsh.readObject(kryoIn, SampleObject.class);
        kryoIn.close();
        // U.close(kryoIn, null);
      }

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      long start = System.nanoTime();


      for (int j = 0; j < ITER_CNT; j++) {


        Output kryoOut = null;


        kryoOut = new UnsafeOutput(out);


        marsh.writeObject(kryoOut, obj);
        kryoOut.close();
        // U.close(kryoOut, null);


        Input kryoIn = null;


        kryoIn = new UnsafeInput(kryoOut.getBuffer(), 0, kryoOut.position());


        newObj = marsh.readObject(kryoIn, SampleObject.class);
        kryoIn.close();
        // U.close(kryoIn, null);
      }

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    assertEquals(true, read.eof());
  }


  public void testSimpleVarInt() {
      final int value = 39117;
      final Output out = new UnsafeOutput(1024);
      out.writeVarInt(value, true);
      out.flush();
      final Input in = new UnsafeInput(out.toBytes());
      final int actualValue = in.readVarInt(true);
      assertEquals(value, actualValue);
  }

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  public void testClassSerializer() {
    kryo.register(Class.class);
    kryo.register(ArrayList.class);
    kryo.setRegistrationRequired(false);
    final Output out = new Output(1024);


    kryo.writeObject(out, String.class);
    kryo.writeObject(out, Integer.class);
    kryo.writeObject(out, Short.class);
    kryo.writeObject(out, Long.class);
    kryo.writeObject(out, Double.class);
    kryo.writeObject(out, Float.class);
    kryo.writeObject(out, Boolean.class);
    kryo.writeObject(out, Character.class);
    kryo.writeObject(out, Void.class);


    kryo.writeObject(out, int.class);
    kryo.writeObject(out, short.class);
    kryo.writeObject(out, long.class);
    kryo.writeObject(out, double.class);
    kryo.writeObject(out, float.class);
    kryo.writeObject(out, boolean.class);
    kryo.writeObject(out, char.class);
    kryo.writeObject(out, void.class);
    kryo.writeObject(out, ArrayList.class);
    kryo.writeObject(out, TestEnum.class);


    final Input in = new Input(out.getBuffer());


    assertEquals(String.class, kryo.readObject(in, Class.class));
    assertEquals(Integer.class, kryo.readObject(in, Class.class));
    assertEquals(Short.class, kryo.readObject(in, Class.class));
    assertEquals(Long.class, kryo.readObject(in, Class.class));

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      }
    });
    
    return roundTripWithStreamFactory(length, object1, new StreamFactory() {
      public Output createOutput(OutputStream os) {
        return new Output(os);
      }


      public Output createOutput(OutputStream os, int size) {
        return new Output(os, size);
      }


      public Output createOutput(int size, int limit) {
        return new Output(size, limit);
      }


      public Input createInput(InputStream os, int size) {
        return new Input(os, size);
      }

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    kryo.register(HashMap.class);


    HasGenerics test = new HasGenerics();
    test.map.put("moo", new Integer[] {1, 2});


    output = new Output(4096);
    kryo.writeClassAndObject(output, test);
    output.flush();


    input = new Input(output.toBytes());
    HasGenerics test2 = (HasGenerics)kryo.readClassAndObject(input);

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    Kryo kryo = new Kryo();
    kryo.register(HashMap.class, new MapSerializer());
    kryo.register(ConcurrentHashMap.class, new MapSerializer());


    Output output = new Output(2048, -1);
    kryo.writeClassAndObject(output, map);
    output.close();


    Input input = new Input(output.toBytes());
    Object deserialized = kryo.readClassAndObject(input);
    input.close();


    Assert.assertEquals(map, deserialized);
  }

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