Examples of org.apache.thrift.TSerializer

org.apache.thrift.TSerializer
Generic utility for easily serializing objects into a byte array or Java String.

        assert indexExpressions != null;
        // oh, you thought cfdefToString was awful?
        IndexClause indexClause = new IndexClause();
        indexClause.setExpressions(indexExpressions);
        indexClause.setStart_key("".getBytes());
        TSerializer serializer = new TSerializer(new TBinaryProtocol.Factory());
        try
        {
            return Hex.bytesToHex(serializer.serialize(indexClause));
        }
        catch (TException e)
        {
            throw new IOException(e);
        }

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    /** convert CfDef to string */
    protected static String cfdefToString(CfDef cfDef) throws IOException
    {
        assert cfDef != null;
        // this is so awful it's kind of cool!
        TSerializer serializer = new TSerializer(new TBinaryProtocol.Factory());
        try
        {
            return Hex.bytesToHex(serializer.serialize(cfDef));
        }
        catch (TException e)
        {
            throw new IOException(e);
        }

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    return ret;
  }


  public static byte[] encodeIteratorSettings(IteratorConfig iterators) {
    TSerializer tser = new TSerializer(new TBinaryProtocol.Factory());
    
    try {
      return tser.serialize(iterators);
    } catch (TException e) {
      throw new RuntimeException(e);
    }
  }

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    public ThriftOutputMapFn() {
    }


    @Override
    public void initialize() {
      this.serializer = new TSerializer(new TBinaryProtocol.Factory());
    }

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    private static String predicateToString(SlicePredicate predicate)
    {
        assert predicate != null;
        // this is so awful it's kind of cool!
        TSerializer serializer = new TSerializer(new TBinaryProtocol.Factory());
        try
        {
            return FBUtilities.bytesToHex(serializer.serialize(predicate));
        }
        catch (TException e)
        {
            throw new RuntimeException(e);
        }

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    private static String cfdefToString(CfDef cfDef)
    {
        assert cfDef != null;
        // this is so awful it's kind of cool!
        TSerializer serializer = new TSerializer(new TBinaryProtocol.Factory());
        try
        {
            return FBUtilities.bytesToHex(serializer.serialize(cfDef));
        }
        catch (TException e)
        {
            throw new RuntimeException(e);
        }

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      JSONObject jsonContainer = new JSONObject();
      jsonContainer.put("version", METADATA_FORMAT_VERSION);
      if (METADATA_FORMAT_FORWARD_COMPATIBLE_VERSION != null) {
        jsonContainer.put("fcversion", METADATA_FORMAT_FORWARD_COMPATIBLE_VERSION);
      }
      TSerializer serializer = new TSerializer(new TJSONProtocol.Factory());
      try {
        String tableDesc = serializer.toString(tableHandle.getTTable(), "UTF-8");
        jsonContainer.put("table", tableDesc);
        JSONArray jsonPartitions = new JSONArray();
        if (partitions != null) {
          for (org.apache.hadoop.hive.ql.metadata.Partition partition : partitions) {
            String partDesc = serializer.toString(partition.getTPartition(), "UTF-8");
            jsonPartitions.put(partDesc);
          }
        }
        jsonContainer.put("partitions", jsonPartitions);
      } catch (TException e) {

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    // System.out.println(clientInTrans.inspect());
    assertEquals(2, testClient.recv_Janky());
  }


  public void testTDeserializer() throws TException {
    TSerializer ser = new TSerializer(getFactory());
    byte[] bytes = ser.serialize(Fixtures.compactProtoTestStruct);


    TDeserializer deser = new TDeserializer(getFactory());
    CompactProtoTestStruct cpts = new CompactProtoTestStruct();
    deser.deserialize(cpts, bytes);

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  private static final int NUM_TRIALS = 5;
  private static final int NUM_REPS = 10000;


  protected void benchmark() throws Exception {
    for (int trial = 0; trial < NUM_TRIALS; trial++) {
      TSerializer ser = new TSerializer(getFactory());
      byte[] serialized = null;
      long serStart = System.currentTimeMillis();
      for (int rep = 0; rep < NUM_REPS; rep++) {
        serialized = ser.serialize(Fixtures.holyMoley);
      }
      long serEnd = System.currentTimeMillis();
      long serElapsed = serEnd - serStart;
      System.out.println("Ser:\t" + serElapsed + "ms\t" 
          + ((double)serElapsed / NUM_REPS) + "ms per serialization");

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    // Make sure data serialized with TCompact and which starts with '{'
    // is not mistakenly guessed as serialized with JSON.


    GuessProtocolStruct s = new GuessProtocolStruct();
    s.putToMap_field("}","}");
    byte[] ser = new TSerializer(new TCompactProtocol.Factory()).serialize(s);
    factory = TProtocolUtil.guessProtocolFactory(ser, new TCompactProtocol.Factory());
    assertFalse(factory instanceof TJSONProtocol.Factory);
  }

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