Examples of GenericDatumReader

org.apache.avro.generic.GenericDatumReader
{@link DatumReader} for generic Java objects.

Examples of org.apache.avro.generic.GenericDatumReader

         super(STRING_ARRAY_SCHEMA, id);
      }


      @Override
      Object read(Decoder decoder) throws IOException {
         GenericData.Array<Utf8> utf8s = (GenericData.Array<Utf8>) new GenericDatumReader(schema).read(null, decoder);
         List<String> strings = new ArrayList<String>((int) utf8s.size());
         for (Utf8 utf8 : utf8s)
            strings.add(utf8.toString());
         return strings.toArray(new String[0]);
      }

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Examples of org.apache.avro.generic.GenericDatumReader

         this.type = type;
      }


      @Override
      Object read(Decoder decoder) throws IOException {
         GenericData.Array<T> avroArray = (GenericData.Array<T>) new GenericDatumReader(schema).read(null, decoder);
         List<T> list = new ArrayList<T>((int) avroArray.size());
         for (T t : avroArray)
            list.add(t);
         T[] array = (T[]) Array.newInstance(type, list.size());
         return toArray(list, array);

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Examples of org.apache.avro.generic.GenericDatumReader


  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();
    }
    return data;

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Examples of org.apache.avro.generic.GenericDatumReader

    String recordJson =
      "{\"type\":\"record\", \"name\":\"Foo\", \"fields\":[{\"name\":\"f\", "
    +"\"type\":"+schemaJson+", "
    +"\"default\":"+defaultJson+"}]}";
    Schema expected = Schema.parse(recordJson);
    DatumReader in = new GenericDatumReader(ACTUAL, expected);
    GenericData.Record record = (GenericData.Record)
      in.read(null, new BinaryDecoder(new ByteArrayInputStream(new byte[0])));
    assertEquals("Wrong default.", defaultValue, record.get("f"));
    assertEquals("Wrong toString", expected, Schema.parse(expected.toString()));
  }

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Examples of org.apache.avro.generic.GenericDatumReader

    String recordJson =
      "{\"type\":\"record\", \"name\":\"Foo\", \"fields\":[{\"name\":\"f\", "
    +"\"type\":"+schemaJson+", "
    +"\"default\":"+defaultJson+"}]}";
    Schema expected = Schema.parse(recordJson);
    DatumReader in = new GenericDatumReader(ACTUAL, expected);
    GenericData.Record record = (GenericData.Record)
      in.read(null, new BinaryDecoder(new ByteArrayInputStream(new byte[0])));
    assertEquals("Wrong default.", defaultValue, record.get("f"));
    assertEquals("Wrong toString", expected, Schema.parse(expected.toString()));
  }

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Examples of org.apache.avro.generic.GenericDatumReader

    String recordJson =
      "{\"type\":\"record\", \"name\":\"Foo\", \"fields\":[{\"name\":\"f\", "
    +"\"type\":"+schemaJson+", "
    +"\"default\":"+defaultJson+"}]}";
    Schema expected = Schema.parse(recordJson);
    DatumReader in = new GenericDatumReader(ACTUAL, expected);
    GenericData.Record record = (GenericData.Record)
      in.read(null, DecoderFactory.defaultFactory().createBinaryDecoder(
          new byte[0], null));
    assertEquals("Wrong default.", defaultValue, record.get("f"));
    assertEquals("Wrong toString", expected, Schema.parse(expected.toString()));
  }

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Examples of org.apache.avro.generic.GenericDatumReader

         this.schema = schema;
         this.id = id;
      }


      Object read(Decoder decoder) throws IOException {
         return new GenericDatumReader(schema).read(null, decoder);
      }

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Examples of org.apache.avro.generic.GenericDatumReader

         super(STRING_SCHEMA, id);
      }


      @Override
      Object read(Decoder decoder) throws IOException {
         return new GenericDatumReader(schema).read(null, decoder).toString();
      }

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Examples of org.apache.avro.generic.GenericDatumReader

         super(BYTES_SCHEMA, id);
      }


      @Override
      Object read(Decoder decoder) throws IOException {
         java.nio.ByteBuffer byteBuffer = (java.nio.ByteBuffer) new GenericDatumReader(schema).read(null, decoder);
         byte[] bytes = new byte[byteBuffer.limit()]; // TODO: Limit or capacity ? Limit works
         byteBuffer.get(bytes);
         return bytes;
      }

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Examples of org.apache.avro.generic.GenericDatumReader

         super(STRING_ARRAY_SCHEMA, id);
      }


      @Override
      Object read(Decoder decoder) throws IOException {
         GenericData.Array<Utf8> utf8s = (GenericData.Array<Utf8>) new GenericDatumReader(schema).read(null, decoder);
         List<String> strings = new ArrayList<String>((int) utf8s.size());
         for (Utf8 utf8 : utf8s)
            strings.add(utf8.toString());
         return strings.toArray(new String[0]);
      }

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