Examples with Serializer org.apache.kafka.common.serialization.Serializer used on opensource projects

Example 1 with Serializer

use of org.apache.kafka.common.serialization.Serializer in project kafka by apache.

the class SinkNodeTest method shouldThrowStreamsExceptionOnKeyValueTypeSerializerMismatch.

@Test
@SuppressWarnings("unchecked")
public void shouldThrowStreamsExceptionOnKeyValueTypeSerializerMismatch() {
    // Given
    final Serializer anySerializer = Serdes.Bytes().serializer();
    final StateSerdes anyStateSerde = StateSerdes.withBuiltinTypes("anyName", Bytes.class, Bytes.class);
    final MockProcessorContext context = new MockProcessorContext(anyStateSerde, new RecordCollectorImpl(new MockProducer<byte[], byte[]>(true, anySerializer, anySerializer), null));
    context.setTime(0);
    final SinkNode sink = new SinkNode<>("anyNodeName", "any-output-topic", anySerializer, anySerializer, null);
    sink.init(context);
    final String keyOfDifferentTypeThanSerializer = "key with different type";
    final String valueOfDifferentTypeThanSerializer = "value with different type";
    // When/Then
    try {
        sink.process(keyOfDifferentTypeThanSerializer, valueOfDifferentTypeThanSerializer);
        fail("Should have thrown StreamsException");
    } catch (final StreamsException e) {
        assertThat(e.getCause(), instanceOf(ClassCastException.class));
    }
}

Example 2 with Serializer

use of org.apache.kafka.common.serialization.Serializer in project kafka by apache.

the class SinkNodeTest method shouldThrowStreamsExceptionOnInputRecordWithInvalidTimestamp.

@Test
@SuppressWarnings("unchecked")
public void shouldThrowStreamsExceptionOnInputRecordWithInvalidTimestamp() {
    // Given
    final Serializer anySerializer = Serdes.Bytes().serializer();
    final StateSerdes anyStateSerde = StateSerdes.withBuiltinTypes("anyName", Bytes.class, Bytes.class);
    final MockProcessorContext context = new MockProcessorContext(anyStateSerde, new RecordCollectorImpl(new MockProducer<byte[], byte[]>(true, anySerializer, anySerializer), null));
    final SinkNode sink = new SinkNode<>("anyNodeName", "any-output-topic", anySerializer, anySerializer, null);
    sink.init(context);
    final Bytes anyKey = new Bytes("any key".getBytes());
    final Bytes anyValue = new Bytes("any value".getBytes());
    // When/Then
    // ensures a negative timestamp is set for the record we send next
    context.setTime(-1);
    try {
        sink.process(anyKey, anyValue);
        fail("Should have thrown StreamsException");
    } catch (final StreamsException ignored) {
    }
}

Example 3 with Serializer

use of org.apache.kafka.common.serialization.Serializer in project kafka by apache.

the class SinkNodeTest method shouldHandleNullValuesWhenThrowingStreamsExceptionOnKeyValueTypeSerializerMismatch.

@Test
@SuppressWarnings("unchecked")
public void shouldHandleNullValuesWhenThrowingStreamsExceptionOnKeyValueTypeSerializerMismatch() {
    // Given
    final Serializer anySerializer = Serdes.Bytes().serializer();
    final StateSerdes anyStateSerde = StateSerdes.withBuiltinTypes("anyName", Bytes.class, Bytes.class);
    final MockProcessorContext context = new MockProcessorContext(anyStateSerde, new RecordCollectorImpl(new MockProducer<byte[], byte[]>(true, anySerializer, anySerializer), null));
    context.setTime(1);
    final SinkNode sink = new SinkNode<>("anyNodeName", "any-output-topic", anySerializer, anySerializer, null);
    sink.init(context);
    final String invalidKeyToTriggerSerializerMismatch = "";
    // When/Then
    try {
        sink.process(invalidKeyToTriggerSerializerMismatch, null);
        fail("Should have thrown StreamsException");
    } catch (final StreamsException e) {
        assertThat(e.getCause(), instanceOf(ClassCastException.class));
        assertThat(e.getMessage(), containsString("unknown because value is null"));
    }
}

Example 4 with Serializer

use of org.apache.kafka.common.serialization.Serializer in project kafka by apache.

the class SinkNodeTest method shouldHandleNullKeysWhenThrowingStreamsExceptionOnKeyValueTypeSerializerMismatch.

@Test
@SuppressWarnings("unchecked")
public void shouldHandleNullKeysWhenThrowingStreamsExceptionOnKeyValueTypeSerializerMismatch() {
    // Given
    final Serializer anySerializer = Serdes.Bytes().serializer();
    final StateSerdes anyStateSerde = StateSerdes.withBuiltinTypes("anyName", Bytes.class, Bytes.class);
    final MockProcessorContext context = new MockProcessorContext(anyStateSerde, new RecordCollectorImpl(new MockProducer<byte[], byte[]>(true, anySerializer, anySerializer), null));
    context.setTime(1);
    final SinkNode sink = new SinkNode<>("anyNodeName", "any-output-topic", anySerializer, anySerializer, null);
    sink.init(context);
    final String invalidValueToTriggerSerializerMismatch = "";
    // When/Then
    try {
        sink.process(null, invalidValueToTriggerSerializerMismatch);
        fail("Should have thrown StreamsException");
    } catch (final StreamsException e) {
        assertThat(e.getCause(), instanceOf(ClassCastException.class));
        assertThat(e.getMessage(), containsString("unknown because key is null"));
    }
}

Example 5 with Serializer

use of org.apache.kafka.common.serialization.Serializer in project kafka by apache.

the class ChangeLoggingKeyValueBytesStoreTest method before.

@Before
public void before() {
    final NoOpRecordCollector collector = new NoOpRecordCollector() {

        @Override
        public <K, V> void send(final String topic, K key, V value, Integer partition, Long timestamp, Serializer<K> keySerializer, Serializer<V> valueSerializer) {
            sent.put(key, value);
        }
    };
    final MockProcessorContext context = new MockProcessorContext(TestUtils.tempDirectory(), Serdes.String(), Serdes.Long(), collector, new ThreadCache("testCache", 0, new MockStreamsMetrics(new Metrics())));
    context.setTime(0);
    store.init(context, store);
}