Examples with GenericDatumWriter org.apache.avro.generic.GenericDatumWriter used on opensource projects

Example 86 with GenericDatumWriter

use of org.apache.avro.generic.GenericDatumWriter in project nifi by apache.

the class TestConvertAvroToJSON method testSingleAvroMessage.

@Test
public void testSingleAvroMessage() throws IOException {
    final TestRunner runner = TestRunners.newTestRunner(new ConvertAvroToJSON());
    final Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
    final GenericRecord user1 = new GenericData.Record(schema);
    user1.put("name", "Alyssa");
    user1.put("favorite_number", 256);
    final DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
    final ByteArrayOutputStream out1 = AvroTestUtil.serializeAvroRecord(schema, datumWriter, user1);
    runner.enqueue(out1.toByteArray());
    runner.run();
    runner.assertAllFlowFilesTransferred(ConvertAvroToJSON.REL_SUCCESS, 1);
    final MockFlowFile out = runner.getFlowFilesForRelationship(ConvertAvroToJSON.REL_SUCCESS).get(0);
    out.assertContentEquals("{\"name\": \"Alyssa\", \"favorite_number\": 256, \"favorite_color\": null}");
}

Example 87 with GenericDatumWriter

use of org.apache.avro.generic.GenericDatumWriter in project nifi by apache.

the class TestConvertAvroToJSON method testZeroRecords_wrapSingleRecord.

@Test
public void testZeroRecords_wrapSingleRecord() throws IOException {
    final TestRunner runner = TestRunners.newTestRunner(new ConvertAvroToJSON());
    runner.setProperty(ConvertAvroToJSON.WRAP_SINGLE_RECORD, Boolean.toString(true));
    final Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
    final DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
    final ByteArrayOutputStream out1 = serializeAvroRecord(schema, datumWriter);
    runner.enqueue(out1.toByteArray());
    runner.run();
    runner.assertAllFlowFilesTransferred(ConvertAvroToJSON.REL_SUCCESS, 1);
    final MockFlowFile out = runner.getFlowFilesForRelationship(ConvertAvroToJSON.REL_SUCCESS).get(0);
    out.assertContentEquals("[{}]");
}

Example 88 with GenericDatumWriter

use of org.apache.avro.generic.GenericDatumWriter in project nifi by apache.

the class TestConvertAvroToJSON method testSingleSchemalessAvroMessage_noContainer.

@Test
public void testSingleSchemalessAvroMessage_noContainer() throws IOException {
    final TestRunner runner = TestRunners.newTestRunner(new ConvertAvroToJSON());
    runner.setProperty(ConvertAvroToJSON.CONTAINER_OPTIONS, ConvertAvroToJSON.CONTAINER_NONE);
    Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
    String stringSchema = schema.toString();
    runner.setProperty(ConvertAvroToJSON.SCHEMA, stringSchema);
    final GenericRecord user1 = new GenericData.Record(schema);
    user1.put("name", "Alyssa");
    user1.put("favorite_number", 256);
    final ByteArrayOutputStream out1 = new ByteArrayOutputStream();
    final BinaryEncoder encoder = EncoderFactory.get().binaryEncoder(out1, null);
    final DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
    datumWriter.write(user1, encoder);
    encoder.flush();
    out1.flush();
    byte[] test = out1.toByteArray();
    runner.enqueue(test);
    runner.run();
    runner.assertAllFlowFilesTransferred(ConvertAvroToJSON.REL_SUCCESS, 1);
    final MockFlowFile out = runner.getFlowFilesForRelationship(ConvertAvroToJSON.REL_SUCCESS).get(0);
    out.assertContentEquals("{\"name\": \"Alyssa\", \"favorite_number\": 256, \"favorite_color\": null}");
}

Example 89 with GenericDatumWriter

use of org.apache.avro.generic.GenericDatumWriter in project nifi by apache.

the class TestConvertAvroToJSON method testSingleSchemalessAvroMessage.

@Test
public void testSingleSchemalessAvroMessage() throws IOException {
    final TestRunner runner = TestRunners.newTestRunner(new ConvertAvroToJSON());
    Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
    String stringSchema = schema.toString();
    runner.setProperty(ConvertAvroToJSON.SCHEMA, stringSchema);
    final GenericRecord user1 = new GenericData.Record(schema);
    user1.put("name", "Alyssa");
    user1.put("favorite_number", 256);
    final ByteArrayOutputStream out1 = new ByteArrayOutputStream();
    final BinaryEncoder encoder = EncoderFactory.get().binaryEncoder(out1, null);
    final DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
    datumWriter.write(user1, encoder);
    encoder.flush();
    out1.flush();
    byte[] test = out1.toByteArray();
    runner.enqueue(test);
    runner.run();
    runner.assertAllFlowFilesTransferred(ConvertAvroToJSON.REL_SUCCESS, 1);
    final MockFlowFile out = runner.getFlowFilesForRelationship(ConvertAvroToJSON.REL_SUCCESS).get(0);
    out.assertContentEquals("{\"name\": \"Alyssa\", \"favorite_number\": 256, \"favorite_color\": null}");
}

Example 90 with GenericDatumWriter

use of org.apache.avro.generic.GenericDatumWriter in project nifi by apache.

the class TestConvertAvroToJSON method testSingleAvroMessage_wrapSingleMessage.

@Test
public void testSingleAvroMessage_wrapSingleMessage() throws IOException {
    final TestRunner runner = TestRunners.newTestRunner(new ConvertAvroToJSON());
    runner.setProperty(ConvertAvroToJSON.CONTAINER_OPTIONS, ConvertAvroToJSON.CONTAINER_ARRAY);
    runner.setProperty(ConvertAvroToJSON.WRAP_SINGLE_RECORD, Boolean.toString(true));
    final Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
    final GenericRecord user1 = new GenericData.Record(schema);
    user1.put("name", "Alyssa");
    user1.put("favorite_number", 256);
    final DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
    final ByteArrayOutputStream out1 = AvroTestUtil.serializeAvroRecord(schema, datumWriter, user1);
    runner.enqueue(out1.toByteArray());
    runner.run();
    runner.assertAllFlowFilesTransferred(ConvertAvroToJSON.REL_SUCCESS, 1);
    final MockFlowFile out = runner.getFlowFilesForRelationship(ConvertAvroToJSON.REL_SUCCESS).get(0);
    out.assertContentEquals("[{\"name\": \"Alyssa\", \"favorite_number\": 256, \"favorite_color\": null}]");
}