Examples of com.esotericsoftware.kryo.io.Input

com.esotericsoftware.kryo.io.Input
An InputStream that reads data from a byte array and optionally fills the byte array from another InputStream as needed. Utility methods are provided for efficiently reading primitive types and strings.
The byte[] buffer may be modified and then returned to its original state during some read operations, so the same byte[] should not be used concurrently in separate threads. @author Nathan Sweet


        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);
      }


      long dur = System.nanoTime() - start;
      dur = TimeUnit.NANOSECONDS.toMillis(dur);

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        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);
      }


      long dur = System.nanoTime() - start;
      dur = TimeUnit.NANOSECONDS.toMillis(dur);

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        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);
      }


      long dur = System.nanoTime() - start;
      dur = TimeUnit.NANOSECONDS.toMillis(dur);

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        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);
      }


      long dur = System.nanoTime() - start;
      dur = TimeUnit.NANOSECONDS.toMillis(dur);

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        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);
      }


      long dur = System.nanoTime() - start;
      dur = TimeUnit.NANOSECONDS.toMillis(dur);

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    assertEquals(4, write.writeFloat(-65, 1000, false));
    assertEquals(4, write.writeFloat(-65, 1000, true));
    assertEquals(4, write.writeFloat(-8192, 1000, false));
    assertEquals(4, write.writeFloat(-8192, 1000, true));


    Input read = new UnsafeInput(write.toBytes());
    assertEquals(read.readFloat(), 0f);
    assertEquals(read.readFloat(), 63f);
    assertEquals(read.readFloat(), 64f);
    assertEquals(read.readFloat(), 127f);
    assertEquals(read.readFloat(), 128f);
    assertEquals(read.readFloat(), 8192f);
    assertEquals(read.readFloat(), 16384f);
    assertEquals(read.readFloat(), 32767f);
    assertEquals(read.readFloat(), -63f);
    assertEquals(read.readFloat(), -64f);
    assertEquals(read.readFloat(), -127f);
    assertEquals(read.readFloat(), -128f);
    assertEquals(read.readFloat(), -8192f);
    assertEquals(read.readFloat(), -16384f);
    assertEquals(read.readFloat(), -32768f);
    assertEquals(read.readFloat(1000, true), 0f);
    assertEquals(read.readFloat(1000, false), 0f);
    assertEquals(read.readFloat(1000, true), 63f);
    assertEquals(read.readFloat(1000, false), 63f);
    assertEquals(read.readFloat(1000, true), 64f);
    assertEquals(read.readFloat(1000, false), 64f);
    assertEquals(read.readFloat(1000, true), 127f);
    assertEquals(read.readFloat(1000, false), 127f);
    assertEquals(read.readFloat(1000, true), 128f);
    assertEquals(read.readFloat(1000, false), 128f);
    assertEquals(read.readFloat(1000, true), 8191f);
    assertEquals(read.readFloat(1000, false), 8191f);
    assertEquals(read.readFloat(1000, true), 8192f);
    assertEquals(read.readFloat(1000, false), 8192f);
    assertEquals(read.readFloat(1000, true), 16383f);
    assertEquals(read.readFloat(1000, false), 16383f);
    assertEquals(read.readFloat(1000, true), 16384f);
    assertEquals(read.readFloat(1000, false), 16384f);
    assertEquals(read.readFloat(1000, true), 32767f);
    assertEquals(read.readFloat(1000, false), 32767f);
    assertEquals(read.readFloat(1000, false), -64f);
    assertEquals(read.readFloat(1000, true), -64f);
    assertEquals(read.readFloat(1000, false), -65f);
    assertEquals(read.readFloat(1000, true), -65f);
    assertEquals(read.readFloat(1000, false), -8192f);
    assertEquals(read.readFloat(1000, true), -8192f);
  }

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    assertEquals(8, write.writeDouble(-65, 1000, true));
    assertEquals(8, write.writeDouble(-8192, 1000, false));
    assertEquals(8, write.writeDouble(-8192, 1000, true));
    write.writeDouble(1.23456d);


    Input read = new UnsafeInput(write.toBytes());
    assertEquals(read.readDouble(), 0d);
    assertEquals(read.readDouble(), 63d);
    assertEquals(read.readDouble(), 64d);
    assertEquals(read.readDouble(), 127d);
    assertEquals(read.readDouble(), 128d);
    assertEquals(read.readDouble(), 8192d);
    assertEquals(read.readDouble(), 16384d);
    assertEquals(read.readDouble(), 32767d);
    assertEquals(read.readDouble(), -63d);
    assertEquals(read.readDouble(), -64d);
    assertEquals(read.readDouble(), -127d);
    assertEquals(read.readDouble(), -128d);
    assertEquals(read.readDouble(), -8192d);
    assertEquals(read.readDouble(), -16384d);
    assertEquals(read.readDouble(), -32768d);
    assertEquals(read.readDouble(1000, true), 0d);
    assertEquals(read.readDouble(1000, false), 0d);
    assertEquals(read.readDouble(1000, true), 63d);
    assertEquals(read.readDouble(1000, false), 63d);
    assertEquals(read.readDouble(1000, true), 64d);
    assertEquals(read.readDouble(1000, false), 64d);
    assertEquals(read.readDouble(1000, true), 127d);
    assertEquals(read.readDouble(1000, false), 127d);
    assertEquals(read.readDouble(1000, true), 128d);
    assertEquals(read.readDouble(1000, false), 128d);
    assertEquals(read.readDouble(1000, true), 8191d);
    assertEquals(read.readDouble(1000, false), 8191d);
    assertEquals(read.readDouble(1000, true), 8192d);
    assertEquals(read.readDouble(1000, false), 8192d);
    assertEquals(read.readDouble(1000, true), 16383d);
    assertEquals(read.readDouble(1000, false), 16383d);
    assertEquals(read.readDouble(1000, true), 16384d);
    assertEquals(read.readDouble(1000, false), 16384d);
    assertEquals(read.readDouble(1000, true), 32767d);
    assertEquals(read.readDouble(1000, false), 32767d);
    assertEquals(read.readDouble(1000, false), -64d);
    assertEquals(read.readDouble(1000, true), -64d);
    assertEquals(read.readDouble(1000, false), -65d);
    assertEquals(read.readDouble(1000, true), -65d);
    assertEquals(read.readDouble(1000, false), -8192d);
    assertEquals(read.readDouble(1000, true), -8192d);
    assertEquals(1.23456d, read.readDouble());
  }

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    for (int i = 0; i < 100; i++) {
      write.writeBoolean(true);
      write.writeBoolean(false);
    }


    Input read = new UnsafeInput(write.toBytes());
    for (int i = 0; i < 100; i++) {
      assertEquals(true, read.readBoolean());
      assertEquals(false, read.readBoolean());
    }
  }

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    write.writeChar((char)8192);
    write.writeChar((char)16384);
    write.writeChar((char)32767);
    write.writeChar((char)65535);


    Input read = new UnsafeInput(write.toBytes());
    assertEquals(0, read.readChar());
    assertEquals(63, read.readChar());
    assertEquals(64, read.readChar());
    assertEquals(127, read.readChar());
    assertEquals(128, read.readChar());
    assertEquals(8192, read.readChar());
    assertEquals(16384, read.readChar());
    assertEquals(32767, read.readChar());
    assertEquals(65535, read.readChar());
  }

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    write.writeVarInt(65535, true);
    assertEquals(6, write.total());
    write.flush();
    assertEquals(6, os.size());


    Input read = new UnsafeInput(os.toByteArray());
    assertEquals(0, read.readVarInt(true));
    assertEquals(63, read.readVarInt(true));
    assertEquals(64, read.readVarInt(true));
    assertEquals(65535, read.readVarInt(true));
    assertEquals(true, read.eof());
  }

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