/*
* 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.kstream.internals;
import org.apache.kafka.streams.kstream.KeyValueMapper;
import org.apache.kafka.streams.kstream.ValueJoiner;
import org.apache.kafka.streams.processor.Processor;
import org.apache.kafka.streams.processor.ProcessorSupplier;
class KStreamKTableJoin<K, R, V1, V2> implements ProcessorSupplier<K, V1> {
private final KeyValueMapper<K, V1, K> keyValueMapper = new KeyValueMapper<K, V1, K>() {
@Override
public K apply(final K key, final V1 value) {
return key;
}
};
private final KTableValueGetterSupplier<K, V2> valueGetterSupplier;
private final ValueJoiner<? super V1, ? super V2, R> joiner;
private final boolean leftJoin;
KStreamKTableJoin(final KTableValueGetterSupplier<K, V2> valueGetterSupplier, final ValueJoiner<? super V1, ? super V2, R> joiner, final boolean leftJoin) {
this.valueGetterSupplier = valueGetterSupplier;
this.joiner = joiner;
this.leftJoin = leftJoin;
}
@Override
public Processor<K, V1> get() {
return new KStreamKTableJoinProcessor<>(valueGetterSupplier.get(), keyValueMapper, joiner, leftJoin);
}
}