Package org.apache.avro.io

Examples of org.apache.avro.io.JsonDecoder

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  {

    Decoder inputDecoder = (_inputFormat == AvroFormat.BINARY) ?
        DecoderFactory.defaultFactory().createBinaryDecoder(in, null) :
        (AvroFormat.JSON == _inputFormat) ?
            new JsonDecoder(_inputSchema, in) :
            null;

    ArrayList<GenericRecord> result = new ArrayList<GenericRecord>();
    GenericDatumReader<GenericRecord> genericReader = _inputSchema != _outputSchema ?
        new GenericDatumReader<GenericRecord>(_inputSchema, _outputSchema) :
        new GenericDatumReader<GenericRecord>(_inputSchema);
    switch (_inputFormat)
    {
      case BINARY:
      case JSON:
      {
        GenericRecord r = genericReader.read(null, inputDecoder);
        result.add(r);
        break;
      }
      case JSON_LINES:
      {
        InputStreamReader inReader = new InputStreamReader(in);
        try
        {
          BufferedReader lineIn = new BufferedReader(inReader);
          try
          {
            String line;
            while (null != (line = lineIn.readLine()))
            {
              inputDecoder =  new JsonDecoder(_inputSchema, line);
              GenericRecord r = genericReader.read(null, inputDecoder);
              result.add(r);
              break;
            }
          }
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    encoder.flush();
    byte[] data = out.toByteArray();

    reader.setSchema(schema);
    Object decoded =
      reader.read(null, new JsonDecoder(schema, new ByteArrayInputStream(data)));
     
    assertEquals("Decoded data does not match.", datum, decoded);
  }
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    assertEquals("Encoded data does not match.", json, encoded);

    DatumReader<Object> reader = new GenericDatumReader<Object>();
    reader.setSchema(schema);
    Object decoded =
      reader.read(null, new JsonDecoder(schema,new ByteArrayInputStream(data)));
     
    assertEquals("Decoded data does not match.", datum, decoded);
  }
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  protected Decoder createDecoder() throws IOException {
    switch(codecType) {
      case BINARY:
        return new BinaryDecoder(getOrCreateInputStream());
      case JSON:
        return new JsonDecoder(schema, getOrCreateInputStream());
    }
    return null;
  }
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    writer.write(datum, encoder);
    encoder.flush();
    byte[] data = out.toByteArray();

    reader.setSchema(schema);
    Decoder decoder = new JsonDecoder(schema, new ByteArrayInputStream(data));
    Object decoded = reader.read(null, decoder);
    assertEquals("Decoded data does not match.", datum, decoded);

    decoded = reader.read(decoded, decoder);
    assertEquals("Decoded data does not match.", datum, decoded);
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    assertEquals("Encoded data does not match.", json, encoded);

    DatumReader<Object> reader = new GenericDatumReader<Object>();
    reader.setSchema(schema);
    Object decoded =
      reader.read(null, new JsonDecoder(schema,new ByteArrayInputStream(data)));
     
    assertEquals("Decoded data does not match.", datum, decoded);
  }
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   * sparingly.
   */
  static Object jsonToGenericDatum(Schema schema, String jsonData) throws IOException {
    GenericDatumReader<Object> reader =
      new GenericDatumReader<Object>(schema);
    Object datum = reader.read(null, new JsonDecoder(schema, jsonData));
    return datum;
  }
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    }
   
    try {
    GenericDatumReader<Object> reader =
        new GenericDatumReader<Object>(schema);
    Object datum = reader.read(null, new JsonDecoder(schema, input));
   
    GenericDatumWriter<Object> writer =
        new GenericDatumWriter<Object>(schema);
    writer.write(datum, new BinaryEncoder(out));
    } finally {
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    dump(bs);
    Assert.assertEquals(67, bs.length);

    ByteArrayInputStream bais = new ByteArrayInputStream(bs);
    ReflectDatumReader<A> reader = new ReflectDatumReader<A>(schm);
    Object decoded = reader.read(null, new JsonDecoder(schm, bais));
    LOG.info(decoded);
  }
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    Assert.assertEquals(138, bs.length);

    ByteArrayInputStream bais = new ByteArrayInputStream(bs);
    ReflectDatumReader<EventImpl> reader = new ReflectDatumReader<EventImpl>(
        schm);
    EventImpl decoded = reader.read(null, new JsonDecoder(schm, bais));
    LOG.info(decoded);
  }
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