kafka SerdeGetter 源码
kafka SerdeGetter 代码
文件路径：/streams/src/main/java/org/apache/kafka/streams/processor/internals/SerdeGetter.java
/*
* 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.processor.internals;
import org.apache.kafka.common.serialization.Serde;
import org.apache.kafka.streams.processor.StateStoreContext;
/**
* Allows serde access across different context types.
*/
public class SerdeGetter {
private final org.apache.kafka.streams.processor.ProcessorContext oldProcessorContext;
private final org.apache.kafka.streams.processor.api.ProcessorContext newProcessorContext;
private final StateStoreContext stateStorecontext;
public SerdeGetter(final org.apache.kafka.streams.processor.ProcessorContext context) {
oldProcessorContext = context;
newProcessorContext = null;
stateStorecontext = null;
}
public SerdeGetter(final org.apache.kafka.streams.processor.api.ProcessorContext context) {
oldProcessorContext = null;
newProcessorContext = context;
stateStorecontext = null;
}
public SerdeGetter(final StateStoreContext context) {
oldProcessorContext = null;
newProcessorContext = null;
stateStorecontext = context;
}
public Serde keySerde() {
return oldProcessorContext != null ? oldProcessorContext.keySerde() :
newProcessorContext != null ? newProcessorContext.keySerde() : stateStorecontext.keySerde();
}
public Serde valueSerde() {
return oldProcessorContext != null ? oldProcessorContext.valueSerde() :
newProcessorContext != null ? newProcessorContext.valueSerde() : stateStorecontext.valueSerde();
}
}
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