Package org.apache.avro.io

Examples of org.apache.avro.io.Decoder

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    Encoder encoder = EncoderFactory.get().directBinaryEncoder(out, null);
    writer.write(new GenericData.EnumSymbol(actual, "Y"), encoder);
    writer.write(new GenericData.EnumSymbol(actual, "X"), encoder);
    encoder.flush();
    byte[] data = out.toByteArray();
    Decoder decoder = DecoderFactory.get().binaryDecoder(
        data, null);
    DatumReader<String> in = new GenericDatumReader<String>(actual, expected);
    assertEquals("Wrong value", new GenericData.EnumSymbol(expected, "Y"),
                 in.read(null, decoder));
    try {
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    // Make sure the records were serialized correctly.
    ByteArrayInputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());
    Schema readerSchema = Schema.create(Schema.Type.STRING);
    DatumReader<CharSequence> datumReader = new GenericDatumReader<CharSequence>(readerSchema);
    Decoder decoder = DecoderFactory.get().binaryDecoder(inputStream, null);
    CharSequence record = null;

    record = datumReader.read(record, decoder);
    assertEquals("record1", record.toString());
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    newBuilder.setRelatedids(Arrays.asList(1,2,3));
    FooBarSpecificRecord specificRecord = newBuilder.build();
   
    byte[] recordBytes = serializeRecord(specificRecord);
   
    Decoder decoder = DecoderFactory.get().binaryDecoder(recordBytes, null);
    SpecificDatumReader<FooBarSpecificRecord> specificDatumReader = new SpecificDatumReader<FooBarSpecificRecord>(FooBarSpecificRecord.SCHEMA$);
    FooBarSpecificRecord deserialized = new FooBarSpecificRecord();
    specificDatumReader.read(deserialized, decoder);
   
    assertEquals(specificRecord, deserialized);
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    newBuilder.setMapWithBigIntKeys(mapWithBigIntKeys);
    StringablesRecord stringablesRecord = newBuilder.build();

    byte[] recordBytes = serializeRecord(stringablesRecord);

    Decoder decoder = DecoderFactory.get().binaryDecoder(recordBytes, null);
    SpecificDatumReader<StringablesRecord> specificDatumReader =
      new SpecificDatumReader<StringablesRecord>(StringablesRecord.SCHEMA$);
    StringablesRecord deserialized = new StringablesRecord();
    specificDatumReader.read(deserialized, decoder);
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      LOG.debug(
          "Decode datum {} whose writer is {} with reader {}.",
          new Object[]{datum, writerSchema, readerSchema});
      final byte[] bytes = baos.toByteArray();
      final Decoder decoder = DecoderFactory.get().resolvingDecoder(
          writerSchema, readerSchema,
          DecoderFactory.get().binaryDecoder(bytes, null));
      final DatumReader<Object> datumReader = new GenericDatumReader<Object>(readerSchema);
      final Object decodedDatum = datumReader.read(null, decoder);
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  private List<Object> fromJson(Schema schema, File file) throws Exception {
    InputStream in = new FileInputStream(file);
    List<Object> data = new ArrayList<Object>();
    try {
      DatumReader reader = new GenericDatumReader(schema);
      Decoder decoder = DecoderFactory.get().jsonDecoder(schema, in);
      while (true)
        data.add(reader.read(null, decoder));
    } catch (EOFException e) {
    } finally {
      in.close();
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  public Object fromBytes(Schema schema, byte data[]) throws GoraException {
    Schema fromSchema = null;
    if (schema.getType() == Type.UNION) {
      try {
        Decoder decoder = DecoderFactory.get().binaryDecoder(data, null);
        int unionIndex = decoder.readIndex();
        List<Schema> possibleTypes = schema.getTypes();
        fromSchema = possibleTypes.get(unionIndex);
        Schema effectiveSchema = possibleTypes.get(unionIndex);
        if (effectiveSchema.getType() == Type.NULL) {
          decoder.readNull();
          return null;
        } else {
          data = decoder.readBytes(null).array();
        }
      } catch (IOException e) {
        e.printStackTrace();
        throw new GoraException("Error decoding union type: ", e);
      }
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    writer.write(b, e);
    e.flush();
    ReflectDatumReader<AnotherSampleRecord> reader =
      new ReflectDatumReader<AnotherSampleRecord>(schm);
    ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
    Decoder d = DecoderFactory.defaultFactory().createBinaryDecoder(in, null);
    AnotherSampleRecord decoded = reader.read(null, d);
    assertEquals(a, decoded);
    decoded = reader.read(null, d);
    assertEquals(b, decoded);
  }
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    writer.write(datum, encoder);
    encoder.flush();
    byte[] data = out.toByteArray();

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

    decoded = reader.read(decoded, decoder);
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    Encoder encoder = EncoderFactory.get().directBinaryEncoder(out, null);
    writer.write(new GenericData.EnumSymbol(actual, "Y"), encoder);
    writer.write(new GenericData.EnumSymbol(actual, "X"), encoder);
    encoder.flush();
    byte[] data = out.toByteArray();
    Decoder decoder = DecoderFactory.get().binaryDecoder(
        data, null);
    DatumReader<String> in = new GenericDatumReader<String>(actual, expected);
    assertEquals("Wrong value", new GenericData.EnumSymbol(expected, "Y"),
                 in.read(null, decoder));
    try {
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Related Classes of org.apache.avro.io.Decoder

  • avrobase.AvroBaseImpl
  • avrobase.file.FAB
  • avrobase.file.FABTest
  • avrobase.Row
  • AvroTest
  • com.cloudera.cdk.data.hbase.avro.AvroEntitySerDe
  • com.cloudera.cdk.data.hbase.avro.AvroKeySerDe
  • com.cloudera.cdk.data.hbase.avro.AvroUtils
  • com.cloudera.cdk.data.hbase.avro.io.ColumnDecoderTest
  • com.cloudera.cdk.data.hbase.avro.io.MemcmpDecoderTest
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