Examples of etch.util.FlexBuffer

etch.util.FlexBuffer
A FlexBuffer wraps a byte array and manages the active region of it (0..length). It also supports dynamically extending the buffer as needed. A FlexBuffer also has an index (read or write cursor). The various get and put operations always occur at the current index, with the index adjusted appropriately afterward. Get will not move index past length. If put needs to move index past length, length is also adjusted. This may cause the byte array to be re-allocated to a larger size.

  /** @throws Exception */
  @Test( expected = IOException.class )
  public void bad4() throws Exception
  {
    // Create data to send
    FlexBuffer buf = new FlexBuffer( new byte[]
    {
      // packet header:
      -34, -83, -66, -17, -1, -1, -1, -1 // negative packet size
        // packet data:
    } );

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  /** @throws Exception */
  @Test
  public void singleSingleData0() throws Exception
  {
    // Create data to send
    FlexBuffer buf = new FlexBuffer( new byte[]
    {
      // packet header:
      -34, -83, -66, -17, 0, 0, 0, 0
        // packet data:
    } );

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  /** @throws Exception */
  @Test
  public void singleSingleData1() throws Exception
  {
    // length = 1
    FlexBuffer buf = new FlexBuffer( new byte[]
    {
      // packet header:
      -34, -83, -66, -17, 0, 0, 0, 1,
        // packet data:
        1

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  /** @throws Exception */
  @Test
  public void singleSingleData2() throws Exception
  {
    // length = 2
    FlexBuffer buf = new FlexBuffer( new byte[]
    {
      // packet header:
      -34, -83, -66, -17, 0, 0, 0, 2,
        // packet data:
        3, 4

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  /** @throws Exception */
  @Test
  public void data1() throws Exception
  {
    // 2x length = 0
    FlexBuffer buf = new FlexBuffer( new byte[]
    {
      // packet header:
      -34, -83, -66, -17, 0, 0, 0, 0,
      // packet header:
      -34, -83, -66, -17, 0, 0, 0, 0

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  /** @throws Exception */
  @Test
  public void data2() throws Exception
  {
    // length = 1, length = 0
    FlexBuffer buf = new FlexBuffer( new byte[]
    {
      // packet 1 header:
      -34, -83, -66, -17, 0, 0, 0, 1,
        // packet 1 data:
        1,

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  /** @throws Exception */
  @Test
  public void data3() throws Exception
  {
    // length = 0, length = 1
    FlexBuffer buf = new FlexBuffer( new byte[]
    {
      // packet 1 header:
      -34, -83, -66, -17, 0, 0, 0, 0,
        // packet 1 data:
      // packet 2 header:

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  /** @throws Exception */
  @Test
  public void data4() throws Exception
  {
    // 2x length = 1
    FlexBuffer buf = new FlexBuffer( new byte[]
    {
      // packet 1 header:
      -34, -83, -66, -17, 0, 0, 0, 1,
        // packet 1 data:
        1,

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  /** @throws Exception */
  @Test
  public void doubleSingleData2() throws Exception
  {
    // length = 2
    FlexBuffer buf = new FlexBuffer( new byte[]
    {
      // packet 1 header:
      -34, -83, -66, -17, 0, 0, 0, 2,
        // packet 1 data:
        3, 4,

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  /** @throws Exception */
  @Test
  public void doubleSingle_HeaderSplit_Data0() throws Exception
  {
    // length = 0
    FlexBuffer buf = new FlexBuffer( new byte[]
    {
      // packet 1 header (partial):
      -34, -83, -66, -17, 0, 0
    } );


    p.sessionData( who, buf );


    assertNull( session.what );
    assertTrue( session.check( null ) );
    assertNull( session.sender );


    FlexBuffer buf2 = new FlexBuffer( new byte[]
    {
      // packet 1 header (remainder):
        0, 0,
      // packet 2 header
        -34, -83, -66, -17, 0, 0, 0, 0

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