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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.kafka.streams.state.internals;
import org.apache.kafka.common.utils.Bytes;
import org.apache.kafka.streams.kstream.Windowed;
import org.apache.kafka.streams.processor.ProcessorContext;
import org.apache.kafka.streams.processor.StateStore;
import org.apache.kafka.streams.processor.StateStoreContext;
import org.apache.kafka.streams.query.Position;
import org.apache.kafka.streams.query.PositionBound;
import org.apache.kafka.streams.query.Query;
import org.apache.kafka.streams.query.QueryConfig;
import org.apache.kafka.streams.query.QueryResult;
import org.apache.kafka.streams.state.KeyValueIterator;
import org.apache.kafka.streams.state.WindowStore;
import org.apache.kafka.streams.state.WindowStoreIterator;
import java.time.Instant;
import static org.apache.kafka.streams.state.TimestampedBytesStore.convertToTimestampedFormat;
import static org.apache.kafka.streams.state.internals.ValueAndTimestampDeserializer.rawValue;
class WindowToTimestampedWindowByteStoreAdapter implements WindowStore {
final WindowStore store;
WindowToTimestampedWindowByteStoreAdapter(final WindowStore store) {
if (!store.persistent()) {
throw new IllegalArgumentException("Provided store must be a persistent store, but it is not.");
}
this.store = store;
}
@Override
public void put(final Bytes key,
final byte[] valueWithTimestamp,
final long windowStartTimestamp) {
store.put(key, rawValue(valueWithTimestamp), windowStartTimestamp);
}
@Override
public byte[] fetch(final Bytes key,
final long time) {
return convertToTimestampedFormat(store.fetch(key, time));
}
@Override
public WindowStoreIterator fetch(final Bytes key,
final long timeFrom,
final long timeTo) {
return new WindowToTimestampedWindowIteratorAdapter(store.fetch(key, timeFrom, timeTo));
}
@Override
public WindowStoreIterator fetch(final Bytes key,
final Instant timeFrom,
final Instant timeTo) throws IllegalArgumentException {
return new WindowToTimestampedWindowIteratorAdapter(store.fetch(key, timeFrom, timeTo));
}
@Override
public WindowStoreIterator backwardFetch(final Bytes key,
final long timeFrom,
final long timeTo) {
return new WindowToTimestampedWindowIteratorAdapter(store.backwardFetch(key, timeFrom, timeTo));
}
@Override
public WindowStoreIterator backwardFetch(final Bytes key,
final Instant timeFrom,
final Instant timeTo) throws IllegalArgumentException {
return new WindowToTimestampedWindowIteratorAdapter(store.backwardFetch(key, timeFrom, timeTo));
}
@Override
public KeyValueIterator, byte[]> fetch(final Bytes keyFrom,
final Bytes keyTo,
final long timeFrom,
final long timeTo) {
return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.fetch(keyFrom, keyTo, timeFrom, timeTo));
}
@Override
public KeyValueIterator, byte[]> backwardFetch(final Bytes keyFrom,
final Bytes keyTo,
final Instant timeFrom,
final Instant timeTo) throws IllegalArgumentException {
return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.backwardFetch(keyFrom, keyTo, timeFrom, timeTo));
}
@Override
public KeyValueIterator, byte[]> fetch(final Bytes keyFrom,
final Bytes keyTo,
final Instant timeFrom,
final Instant timeTo) throws IllegalArgumentException {
return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.fetch(keyFrom, keyTo, timeFrom, timeTo));
}
@Override
public KeyValueIterator, byte[]> backwardFetch(final Bytes keyFrom,
final Bytes keyTo,
final long timeFrom,
final long timeTo) {
return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.backwardFetch(keyFrom, keyTo, timeFrom, timeTo));
}
@Override
public KeyValueIterator, byte[]> all() {
return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.all());
}
@Override
public KeyValueIterator, byte[]> backwardAll() {
return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.backwardAll());
}
@Override
public KeyValueIterator, byte[]> fetchAll(final long timeFrom,
final long timeTo) {
return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.fetchAll(timeFrom, timeTo));
}
@Override
public KeyValueIterator, byte[]> fetchAll(final Instant timeFrom,
final Instant timeTo) throws IllegalArgumentException {
return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.fetchAll(timeFrom, timeTo));
}
@Override
public KeyValueIterator, byte[]> backwardFetchAll(final long timeFrom, final long timeTo) {
return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.backwardFetchAll(timeFrom, timeTo));
}
@Override
public KeyValueIterator, byte[]> backwardFetchAll(final Instant timeFrom,
final Instant timeTo) throws IllegalArgumentException {
return new KeyValueToTimestampedKeyValueIteratorAdapter<>(store.backwardFetchAll(timeFrom, timeTo));
}
@Override
public String name() {
return store.name();
}
@Deprecated
@Override
public void init(final ProcessorContext context,
final StateStore root) {
store.init(context, root);
}
@Override
public void init(final StateStoreContext context, final StateStore root) {
store.init(context, root);
}
@Override
public void flush() {
store.flush();
}
@Override
public void close() {
store.close();
}
@Override
public boolean persistent() {
return true;
}
@Override
public boolean isOpen() {
return store.isOpen();
}
@Override
public QueryResult query(
final Query query,
final PositionBound positionBound,
final QueryConfig config) {
final long start = config.isCollectExecutionInfo() ? System.nanoTime() : -1L;
final QueryResult result = store.query(query, positionBound, config);
if (config.isCollectExecutionInfo()) {
final long end = System.nanoTime();
result.addExecutionInfo(
"Handled in " + getClass() + " in " + (end - start) + "ns"
);
}
return result;
}
@Override
public Position getPosition() {
return store.getPosition();
}
private static class WindowToTimestampedWindowIteratorAdapter
extends KeyValueToTimestampedKeyValueIteratorAdapter
implements WindowStoreIterator {
WindowToTimestampedWindowIteratorAdapter(final KeyValueIterator innerIterator) {
super(innerIterator);
}
}
}
