Package org.apache.thrift.protocol

Examples of org.apache.thrift.protocol.TList

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    }

    public void writeDoubleArray(double[] array)
            throws TException
    {
        protocol.writeListBegin(new TList(TType.DOUBLE, array.length));
        for (double doubleValue : array) {
            writeDouble(doubleValue);
        }
        protocol.writeListEnd();
    }
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    {
        if (list == null) {
            return;
        }

        protocol.writeListBegin(new TList(elementCodec.getType().getProtocolType().getType(), list.size()));

        for (T element : list) {
            elementCodec.write(element, protocol);
        }
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  }

  @Override
  public TList readListBegin() throws TException {
    assert (!inner);
    TList list = new TList();
    if (columns[index] == null || columns[index].equals(nullString)) {
      index++;
      if (returnNulls) {
        return null;
      }
    } else if (columns[index].isEmpty()) {
      index++;
    } else {
      fields = secondaryPattern.split(columns[index++]);
      list = new TList(ORDERED_TYPE, fields.length);
    }
    innerIndex = 0;
    inner = true;
    return list;
  }
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   * calling this method again.
   */
  @Override
  public TList readListBegin() throws TException {
    stackLevel++;
    tlist = new TList(ORDERED_TYPE, readI32());
    if (tlist.size == 0 && lastPrimitiveWasNull()) {
      return null;
    }
    return tlist;
  }
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    prot.writeFieldBegin(new TField());
    prot.writeI32(100);
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeListBegin(new TList());
    prot.writeDouble(348.55);
    prot.writeDouble(234.22);
    prot.writeListEnd();
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeString("hello world!");
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeMapBegin(new TMap());
    prot.writeString("key1");
    prot.writeString("val1");
    prot.writeString("key2");
    prot.writeString("val2");
    prot.writeString("key3");
    prot.writeString("val3");
    prot.writeMapEnd();
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeListBegin(new TList());
    prot.writeString("elem1");
    prot.writeString("elem2");
    prot.writeListEnd();
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeString("bye!");
    prot.writeFieldEnd();

    prot.writeStructEnd();
    trans.flush();
    byte[] b = new byte[3 * 1024];
    int len = trans.read(b, 0, b.length);
    String test = new String(b, 0, len);

    String testRef =
      "100348.55234.22hello world!key1val1key2val2key3val3elem1elem2bye!";
    assertTrue(test.equals(testRef));

    trans = new TMemoryBuffer(1023);
    trans.write(b, 0, len);

    //
    // read back!
    //

    prot = new TCTLSeparatedProtocol(trans, 10);
    prot.initialize(new Configuration(), new Properties());

    // 100 is the start
    prot.readStructBegin();
    prot.readFieldBegin();
    assertTrue(prot.readI32() == 100);
    prot.readFieldEnd();

    // let's see if doubles work ok
    prot.readFieldBegin();
    TList l = prot.readListBegin();
    assertTrue(l.size == 2);
    assertTrue(prot.readDouble() == 348.55);
    assertTrue(prot.readDouble() == 234.22);
    prot.readListEnd();
    prot.readFieldEnd();
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    prot.writeFieldBegin(new TField());
    prot.writeString(testStr);
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeListBegin(new TList());
    prot.writeString("elem1");
    prot.writeString("elem2");
    prot.writeListEnd();
    prot.writeFieldEnd();

    prot.writeStructEnd();
    prot.writeString("\n");

    trans.flush();

    byte b[] = new byte[4096];
    int len = trans.read(b, 0, b.length);

    trans = new TMemoryBuffer(4096);
    trans.write(b, 0, len);
    prot = new TCTLSeparatedProtocol(trans, 1024);
    prot.initialize(new Configuration(), schema);

    prot.readStructBegin();
    prot.readFieldBegin();
    final String firstRead = prot.readString();
    prot.readFieldEnd();

    testStr = testStr.replace("\"", "");

    assertEquals(testStr, firstRead);

    // the 2 element list
    prot.readFieldBegin();
    TList l = prot.readListBegin();
    assertTrue(l.size == 2);
    assertTrue(prot.readString().equals("elem1"));
    assertTrue(prot.readString().equals("elem2"));
    prot.readListEnd();
    prot.readFieldEnd();
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   * calling this method again.
   */
  @Override
  public TList readListBegin() throws TException {
    stackLevel++;
    tlist = new TList(ORDERED_TYPE, readI32());
    if (tlist.size == 0 && lastPrimitiveWasNull()) {
      return null;
    }
    return tlist;
  }
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  }

  @Override
  public TList readListBegin() throws TException {
    assert (!inner);
    TList list = new TList();
    if (columns[index] == null || columns[index].equals(nullString)) {
      index++;
      if (returnNulls) {
        return null;
      }
    } else if (columns[index].isEmpty()) {
      index++;
    } else {
      fields = secondaryPattern.split(columns[index++]);
      list = new TList(ORDERED_TYPE, fields.length);
    }
    innerIndex = 0;
    inner = true;
    return list;
  }
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    prot.writeFieldBegin(new TField());
    prot.writeI32(100);
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeListBegin(new TList());
    prot.writeDouble(348.55);
    prot.writeDouble(234.22);
    prot.writeListEnd();
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeString("hello world!");
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeMapBegin(new TMap());
    prot.writeString("key1");
    prot.writeString("val1");
    prot.writeString("key2");
    prot.writeString("val2");
    prot.writeString("key3");
    prot.writeString("val3");
    prot.writeMapEnd();
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeListBegin(new TList());
    prot.writeString("elem1");
    prot.writeString("elem2");
    prot.writeListEnd();
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeString("bye!");
    prot.writeFieldEnd();

    prot.writeStructEnd();
    trans.flush();
    byte[] b = new byte[3 * 1024];
    int len = trans.read(b, 0, b.length);
    String test = new String(b, 0, len);

    String testRef =
      "100348.55234.22hello world!key1val1key2val2key3val3elem1elem2bye!";
    assertTrue(test.equals(testRef));

    trans = new TMemoryBuffer(1023);
    trans.write(b, 0, len);

    //
    // read back!
    //

    prot = new TCTLSeparatedProtocol(trans, 10);
    prot.initialize(new Configuration(), new Properties());

    // 100 is the start
    prot.readStructBegin();
    prot.readFieldBegin();
    assertTrue(prot.readI32() == 100);
    prot.readFieldEnd();

    // let's see if doubles work ok
    prot.readFieldBegin();
    TList l = prot.readListBegin();
    assertTrue(l.size == 2);
    assertTrue(prot.readDouble() == 348.55);
    assertTrue(prot.readDouble() == 234.22);
    prot.readListEnd();
    prot.readFieldEnd();
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    prot.writeFieldBegin(new TField());
    prot.writeString(testStr);
    prot.writeFieldEnd();

    prot.writeFieldBegin(new TField());
    prot.writeListBegin(new TList());
    prot.writeString("elem1");
    prot.writeString("elem2");
    prot.writeListEnd();
    prot.writeFieldEnd();

    prot.writeStructEnd();
    prot.writeString("\n");

    trans.flush();

    byte b[] = new byte[4096];
    int len = trans.read(b, 0, b.length);

    trans = new TMemoryBuffer(4096);
    trans.write(b, 0, len);
    prot = new TCTLSeparatedProtocol(trans, 1024);
    prot.initialize(new Configuration(), schema);

    prot.readStructBegin();
    prot.readFieldBegin();
    final String firstRead = prot.readString();
    prot.readFieldEnd();

    testStr = testStr.replace("\"", "");

    assertEquals(testStr, firstRead);

    // the 2 element list
    prot.readFieldBegin();
    TList l = prot.readListBegin();
    assertTrue(l.size == 2);
    assertTrue(prot.readString().equals("elem1"));
    assertTrue(prot.readString().equals("elem2"));
    prot.readListEnd();
    prot.readFieldEnd();
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