How to use

getInt

method

in

org.apache.mina.codec.IoBuffer

/**
 * @see ByteBuffer#getInt()
 */
public int getInt() {
  return getInt(position);
}

private float getFloat(Pointer pos) {
  return Float.intBitsToFloat(getInt(pos));
}

/**
 * @see ByteBuffer#getInt(int)
 */
public int getInt(int index) {
  return getInt(getPointerByPosition(index));
}

/**
 * Test the getInt() method, on a buffer containing 1 incomplet int spread
 * in two ByteBuffers
 */
@Test(expected = BufferUnderflowException.class)
public void testGetIntIncompletInt2BBs() {
  ByteBuffer bb1 = ByteBuffer.allocate(1);
  bb1.put((byte) 0x01);
  bb1.flip();
  ByteBuffer bb2 = ByteBuffer.allocate(2);
  bb2.put(new byte[] { 0x02, 0x03 });
  bb2.flip();
  IoBuffer ioBuffer = IoBuffer.wrap(bb1, bb2);
  ioBuffer.getInt();
}

/**
 * Test the getInt() method, on a buffer containing 2 ints in one ByteBuffer
 */
@Test
public void testGetInt2IntsOneBB() {
  ByteBuffer bb = ByteBuffer.allocate(8);
  bb.putInt(12345);
  bb.putInt(67890);
  bb.flip();
  IoBuffer ioBuffer = IoBuffer.wrap(bb);
  assertEquals(12345, ioBuffer.getInt());
  assertEquals(67890, ioBuffer.getInt());
}

/**
 * Test the getInt() method, on a buffer containing 2 ints in two
 * ByteBuffers
 */
@Test
public void testGetInt2Ints2BBs() {
  ByteBuffer bb1 = ByteBuffer.allocate(4);
  bb1.putInt(12345);
  bb1.flip();
  ByteBuffer bb2 = ByteBuffer.allocate(4);
  bb2.putInt(67890);
  bb2.flip();
  IoBuffer ioBuffer = IoBuffer.wrap(bb1, bb2);
  assertEquals(12345, ioBuffer.getInt());
  assertEquals(67890, ioBuffer.getInt());
}

/**
 * Test the getInt() method, on a buffer containing 1 int spread in two
 * ByteBuffers
 */
@Test
public void testGetInt1Int2BBs() {
  ByteBuffer bb1 = ByteBuffer.allocate(1);
  bb1.put((byte) 0x01);
  bb1.flip();
  ByteBuffer bb2 = ByteBuffer.allocate(3);
  bb2.put(new byte[] { 0x02, 0x03, 0x04 });
  bb2.flip();
  IoBuffer ioBuffer = IoBuffer.wrap(bb1, bb2);
  assertEquals(0x01020304, ioBuffer.getInt());
}

/**
 * Test the getInt() method, on a buffer containing 2 ints in two
 * ByteBuffers with LittleInidan order
 */
@Test
public void testGetInt2Ints2BBsLittleIndian() {
  ByteBuffer bb1 = ByteBuffer.allocate(4);
  bb1.order(ByteOrder.LITTLE_ENDIAN);
  bb1.putInt(12345);
  bb1.flip();
  ByteBuffer bb2 = ByteBuffer.allocate(4);
  bb2.order(ByteOrder.LITTLE_ENDIAN);
  bb2.putInt(67890);
  bb2.flip();
  IoBuffer ioBuffer = IoBuffer.wrap(bb1, bb2);
  ioBuffer.order(ByteOrder.LITTLE_ENDIAN);
  assertEquals(12345, ioBuffer.getInt());
  assertEquals(67890, ioBuffer.getInt());
}

@Test
public void testInt() {
  for (ByteOrder bo : new ByteOrder[] { ByteOrder.BIG_ENDIAN, ByteOrder.LITTLE_ENDIAN }) {
    ByteBuffer bb = (ByteBuffer) ByteBuffer.allocate(5).order(bo).putInt(123456).rewind();
    IoBuffer ioBuffer = IoBuffer.wrap(bb).order(bo);
    assertEquals(5, ioBuffer.capacity());
    ioBuffer.extend(3);
    ioBuffer.position(4);
    assertEquals(8, ioBuffer.capacity());
    ioBuffer.putInt(-23456789);
    ioBuffer.rewind();
    assertEquals(123456, ioBuffer.getInt());
    assertEquals(-23456789, ioBuffer.getInt());
    ioBuffer.rewind();
    ioBuffer.putInt(2, 1234567890);
    assertEquals(1234567890, ioBuffer.getInt(2));
    try {
      ioBuffer.putInt(5, 1);
      fail("Not enough place on the buffer");
    } catch (BufferUnderflowException e) {
      // Should come here
    }
    try {
      ioBuffer.getInt(5);
      fail("Not enough place on the buffer");
    } catch (BufferUnderflowException e) {
      // Should come here
    }
  }
}