Examples with Change org.apache.kafka.streams.kstream.internals.Change used on opensource projects

Example 11 with Change

use of org.apache.kafka.streams.kstream.internals.Change in project kafka by apache.

the class TimeOrderedKeyValueBufferTest method shouldReturnPriorValueForBufferedKey.

@Test
public void shouldReturnPriorValueForBufferedKey() {
    final TimeOrderedKeyValueBuffer<String, String> buffer = bufferSupplier.apply(testName);
    final MockInternalProcessorContext context = makeContext();
    buffer.init((StateStoreContext) context, buffer);
    final ProcessorRecordContext recordContext = getContext(0L);
    context.setRecordContext(recordContext);
    buffer.put(1L, new Record<>("A", new Change<>("new-value", "old-value"), 0L), recordContext);
    buffer.put(1L, new Record<>("B", new Change<>("new-value", null), 0L), recordContext);
    assertThat(buffer.priorValueForBuffered("A"), is(Maybe.defined(ValueAndTimestamp.make("old-value", -1))));
    assertThat(buffer.priorValueForBuffered("B"), is(Maybe.defined(null)));
}

Example 12 with Change

use of org.apache.kafka.streams.kstream.internals.Change in project kafka by apache.

the class TimeOrderedKeyValueBufferTest method shouldRestoreV1Format.

@Test
public void shouldRestoreV1Format() {
    final TimeOrderedKeyValueBuffer<String, String> buffer = bufferSupplier.apply(testName);
    final MockInternalProcessorContext context = makeContext();
    buffer.init((StateStoreContext) context, buffer);
    final RecordBatchingStateRestoreCallback stateRestoreCallback = (RecordBatchingStateRestoreCallback) context.stateRestoreCallback(testName);
    context.setRecordContext(new ProcessorRecordContext(0, 0, 0, "", new RecordHeaders()));
    final RecordHeaders v1FlagHeaders = new RecordHeaders(new Header[] { new RecordHeader("v", new byte[] { (byte) 1 }) });
    // These serialized formats were captured by running version 2.2 code.
    // They verify that an upgrade from 2.2 will work.
    // Do not change them.
    final String toDeleteBinary = "00000000000000000000000000000000000000000000000000000005746F70696300000000FFFFFFFF0000000EFFFFFFFF00000006646F6F6D6564";
    final String asdfBinary = "00000000000000020000000000000001000000000000000000000005746F70696300000000FFFFFFFF0000000CFFFFFFFF0000000471776572";
    final String zxcvBinary1 = "00000000000000010000000000000002000000000000000000000005746F70696300000000FFFFFFFF000000150000000870726576696F757300000005336F34696D";
    final String zxcvBinary2 = "00000000000000010000000000000003000000000000000000000005746F70696300000000FFFFFFFF0000001100000005336F34696D000000046E657874";
    stateRestoreCallback.restoreBatch(asList(new ConsumerRecord<>("changelog-topic", 0, 0, 999, TimestampType.CREATE_TIME, -1, -1, "todelete".getBytes(UTF_8), hexStringToByteArray(toDeleteBinary), v1FlagHeaders, Optional.empty()), new ConsumerRecord<>("changelog-topic", 0, 1, 9999, TimestampType.CREATE_TIME, -1, -1, "asdf".getBytes(UTF_8), hexStringToByteArray(asdfBinary), v1FlagHeaders, Optional.empty()), new ConsumerRecord<>("changelog-topic", 0, 2, 99, TimestampType.CREATE_TIME, -1, -1, "zxcv".getBytes(UTF_8), hexStringToByteArray(zxcvBinary1), v1FlagHeaders, Optional.empty()), new ConsumerRecord<>("changelog-topic", 0, 3, 100, TimestampType.CREATE_TIME, -1, -1, "zxcv".getBytes(UTF_8), hexStringToByteArray(zxcvBinary2), v1FlagHeaders, Optional.empty())));
    assertThat(buffer.numRecords(), is(3));
    assertThat(buffer.minTimestamp(), is(0L));
    assertThat(buffer.bufferSize(), is(142L));
    stateRestoreCallback.restoreBatch(singletonList(new ConsumerRecord<>("changelog-topic", 0, 3, 3, TimestampType.CREATE_TIME, -1, -1, "todelete".getBytes(UTF_8), null, new RecordHeaders(), Optional.empty())));
    assertThat(buffer.numRecords(), is(2));
    assertThat(buffer.minTimestamp(), is(1L));
    assertThat(buffer.bufferSize(), is(95L));
    assertThat(buffer.priorValueForBuffered("todelete"), is(Maybe.undefined()));
    assertThat(buffer.priorValueForBuffered("asdf"), is(Maybe.defined(null)));
    assertThat(buffer.priorValueForBuffered("zxcv"), is(Maybe.defined(ValueAndTimestamp.make("previous", -1))));
    // flush the buffer into a list in buffer order so we can make assertions about the contents.
    final List<Eviction<String, String>> evicted = new LinkedList<>();
    buffer.evictWhile(() -> true, evicted::add);
    // Several things to note:
    // * The buffered records are ordered according to their buffer time (serialized in the value of the changelog)
    // * The record timestamps are properly restored, and not conflated with the record's buffer time.
    // * The keys and values are properly restored
    // * The record topic is set to the original input topic, *not* the changelog topic
    // * The record offset preserves the original input record's offset, *not* the offset of the changelog record
    assertThat(evicted, is(asList(new Eviction<>("zxcv", new Change<>("next", "3o4im"), getContext(3L)), new Eviction<>("asdf", new Change<>("qwer", null), getContext(1L)))));
    cleanup(context, buffer);
}

Example 13 with Change

use of org.apache.kafka.streams.kstream.internals.Change in project kafka by apache.

the class TimeOrderedKeyValueBufferTest method shouldRestoreOldUnversionedFormat.

@Test
public void shouldRestoreOldUnversionedFormat() {
    final TimeOrderedKeyValueBuffer<String, String> buffer = bufferSupplier.apply(testName);
    final MockInternalProcessorContext context = makeContext();
    buffer.init((StateStoreContext) context, buffer);
    final RecordBatchingStateRestoreCallback stateRestoreCallback = (RecordBatchingStateRestoreCallback) context.stateRestoreCallback(testName);
    context.setRecordContext(new ProcessorRecordContext(0, 0, 0, "", new RecordHeaders()));
    // These serialized formats were captured by running version 2.1 code.
    // They verify that an upgrade from 2.1 will work.
    // Do not change them.
    final String toDeleteBinaryValue = "0000000000000000FFFFFFFF00000006646F6F6D6564";
    final String asdfBinaryValue = "0000000000000002FFFFFFFF0000000471776572";
    final String zxcvBinaryValue1 = "00000000000000010000000870726576696F757300000005656F34696D";
    final String zxcvBinaryValue2 = "000000000000000100000005656F34696D000000046E657874";
    stateRestoreCallback.restoreBatch(asList(new ConsumerRecord<>("changelog-topic", 0, 0, 0, TimestampType.CREATE_TIME, -1, -1, "todelete".getBytes(UTF_8), hexStringToByteArray(toDeleteBinaryValue), new RecordHeaders(), Optional.empty()), new ConsumerRecord<>("changelog-topic", 0, 1, 1, TimestampType.CREATE_TIME, -1, -1, "asdf".getBytes(UTF_8), hexStringToByteArray(asdfBinaryValue), new RecordHeaders(), Optional.empty()), new ConsumerRecord<>("changelog-topic", 0, 2, 2, TimestampType.CREATE_TIME, -1, -1, "zxcv".getBytes(UTF_8), hexStringToByteArray(zxcvBinaryValue1), new RecordHeaders(), Optional.empty()), new ConsumerRecord<>("changelog-topic", 0, 3, 3, TimestampType.CREATE_TIME, -1, -1, "zxcv".getBytes(UTF_8), hexStringToByteArray(zxcvBinaryValue2), new RecordHeaders(), Optional.empty())));
    assertThat(buffer.numRecords(), is(3));
    assertThat(buffer.minTimestamp(), is(0L));
    assertThat(buffer.bufferSize(), is(172L));
    stateRestoreCallback.restoreBatch(singletonList(new ConsumerRecord<>("changelog-topic", 0, 3, 3, TimestampType.CREATE_TIME, -1, -1, "todelete".getBytes(UTF_8), null, new RecordHeaders(), Optional.empty())));
    assertThat(buffer.numRecords(), is(2));
    assertThat(buffer.minTimestamp(), is(1L));
    assertThat(buffer.bufferSize(), is(115L));
    assertThat(buffer.priorValueForBuffered("todelete"), is(Maybe.undefined()));
    assertThat(buffer.priorValueForBuffered("asdf"), is(Maybe.defined(null)));
    assertThat(buffer.priorValueForBuffered("zxcv"), is(Maybe.defined(ValueAndTimestamp.make("previous", -1))));
    // flush the buffer into a list in buffer order so we can make assertions about the contents.
    final List<Eviction<String, String>> evicted = new LinkedList<>();
    buffer.evictWhile(() -> true, evicted::add);
    // Several things to note:
    // * The buffered records are ordered according to their buffer time (serialized in the value of the changelog)
    // * The record timestamps are properly restored, and not conflated with the record's buffer time.
    // * The keys and values are properly restored
    // * The record topic is set to the changelog topic. This was an oversight in the original implementation,
    // which is fixed in changelog format v1. But upgraded applications still need to be able to handle the
    // original format.
    assertThat(evicted, is(asList(new Eviction<>("zxcv", new Change<>("next", "eo4im"), new ProcessorRecordContext(3L, 3, 0, "changelog-topic", new RecordHeaders())), new Eviction<>("asdf", new Change<>("qwer", null), new ProcessorRecordContext(1L, 1, 0, "changelog-topic", new RecordHeaders())))));
    cleanup(context, buffer);
}

Example 14 with Change

use of org.apache.kafka.streams.kstream.internals.Change in project kafka by apache.

the class TimeOrderedKeyValueBufferTest method putRecord.

private static void putRecord(final TimeOrderedKeyValueBuffer<String, String> buffer, final MockInternalProcessorContext context, final long streamTime, final long recordTimestamp, final String key, final String value) {
    final ProcessorRecordContext recordContext = getContext(recordTimestamp);
    context.setRecordContext(recordContext);
    buffer.put(streamTime, new Record<>(key, new Change<>(value, null), 0L), recordContext);
}

Example 15 with Change

use of org.apache.kafka.streams.kstream.internals.Change in project kafka by apache.

the class TimeOrderedKeyValueBufferTest method shouldRestoreV2Format.

@Test
public void shouldRestoreV2Format() {
    final TimeOrderedKeyValueBuffer<String, String> buffer = bufferSupplier.apply(testName);
    final MockInternalProcessorContext context = makeContext();
    buffer.init((StateStoreContext) context, buffer);
    final RecordBatchingStateRestoreCallback stateRestoreCallback = (RecordBatchingStateRestoreCallback) context.stateRestoreCallback(testName);
    context.setRecordContext(new ProcessorRecordContext(0, 0, 0, "", new RecordHeaders()));
    final RecordHeaders v2FlagHeaders = new RecordHeaders(new Header[] { new RecordHeader("v", new byte[] { (byte) 2 }) });
    // These serialized formats were captured by running version 2.3 code.
    // They verify that an upgrade from 2.3 will work.
    // Do not change them.
    final String toDeleteBinary = "0000000000000000000000000000000000000005746F70696300000000FFFFFFFF0000000EFFFFFFFF00000006646F6F6D6564FFFFFFFF0000000000000000";
    final String asdfBinary = "0000000000000001000000000000000000000005746F70696300000000FFFFFFFF0000000CFFFFFFFF0000000471776572FFFFFFFF0000000000000002";
    final String zxcvBinary1 = "0000000000000002000000000000000000000005746F70696300000000FFFFFFFF000000140000000749474E4F52454400000005336F34696D0000000870726576696F75730000000000000001";
    final String zxcvBinary2 = "0000000000000003000000000000000000000005746F70696300000000FFFFFFFF0000001100000005336F34696D000000046E6578740000000870726576696F75730000000000000001";
    stateRestoreCallback.restoreBatch(asList(new ConsumerRecord<>("changelog-topic", 0, 0, 999, TimestampType.CREATE_TIME, -1, -1, "todelete".getBytes(UTF_8), hexStringToByteArray(toDeleteBinary), v2FlagHeaders, Optional.empty()), new ConsumerRecord<>("changelog-topic", 0, 1, 9999, TimestampType.CREATE_TIME, -1, -1, "asdf".getBytes(UTF_8), hexStringToByteArray(asdfBinary), v2FlagHeaders, Optional.empty()), new ConsumerRecord<>("changelog-topic", 0, 2, 99, TimestampType.CREATE_TIME, -1, -1, "zxcv".getBytes(UTF_8), hexStringToByteArray(zxcvBinary1), v2FlagHeaders, Optional.empty()), new ConsumerRecord<>("changelog-topic", 0, 2, 100, TimestampType.CREATE_TIME, -1, -1, "zxcv".getBytes(UTF_8), hexStringToByteArray(zxcvBinary2), v2FlagHeaders, Optional.empty())));
    assertThat(buffer.numRecords(), is(3));
    assertThat(buffer.minTimestamp(), is(0L));
    assertThat(buffer.bufferSize(), is(142L));
    stateRestoreCallback.restoreBatch(singletonList(new ConsumerRecord<>("changelog-topic", 0, 3, 3, TimestampType.CREATE_TIME, -1, -1, "todelete".getBytes(UTF_8), null, new RecordHeaders(), Optional.empty())));
    assertThat(buffer.numRecords(), is(2));
    assertThat(buffer.minTimestamp(), is(1L));
    assertThat(buffer.bufferSize(), is(95L));
    assertThat(buffer.priorValueForBuffered("todelete"), is(Maybe.undefined()));
    assertThat(buffer.priorValueForBuffered("asdf"), is(Maybe.defined(null)));
    assertThat(buffer.priorValueForBuffered("zxcv"), is(Maybe.defined(ValueAndTimestamp.make("previous", -1))));
    // flush the buffer into a list in buffer order so we can make assertions about the contents.
    final List<Eviction<String, String>> evicted = new LinkedList<>();
    buffer.evictWhile(() -> true, evicted::add);
    // Several things to note:
    // * The buffered records are ordered according to their buffer time (serialized in the value of the changelog)
    // * The record timestamps are properly restored, and not conflated with the record's buffer time.
    // * The keys and values are properly restored
    // * The record topic is set to the original input topic, *not* the changelog topic
    // * The record offset preserves the original input record's offset, *not* the offset of the changelog record
    assertThat(evicted, is(asList(new Eviction<>("zxcv", new Change<>("next", "3o4im"), getContext(3L)), new Eviction<>("asdf", new Change<>("qwer", null), getContext(1L)))));
    cleanup(context, buffer);
}