/
CollectorWrapper.java
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/
CollectorWrapper.java
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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.flink.streaming.runtime.io;
import org.apache.flink.streaming.api.collector.selector.OutputSelectorWrapper;
import org.apache.flink.streaming.api.graph.StreamEdge;
import org.apache.flink.streaming.api.operators.Output;
import org.apache.flink.streaming.api.watermark.Watermark;
import org.apache.flink.streaming.runtime.streamrecord.StreamRecord;
import org.apache.flink.util.Collector;
import java.util.ArrayList;
import java.util.List;
public class CollectorWrapper<OUT> implements Output<StreamRecord<OUT>> {
private OutputSelectorWrapper<OUT> outputSelectorWrapper;
private List<Output<OUT>> allOutputs;
public CollectorWrapper(OutputSelectorWrapper<OUT> outputSelectorWrapper) {
this.outputSelectorWrapper = outputSelectorWrapper;
allOutputs = new ArrayList<Output<OUT>>();
}
@SuppressWarnings("unchecked,rawtypes")
public void addCollector(Output<StreamRecord<?>> output, StreamEdge edge) {
outputSelectorWrapper.addCollector(output, edge);
allOutputs.add((Output) output);
}
@Override
public void collect(StreamRecord<OUT> record) {
for (Collector<StreamRecord<OUT>> output : outputSelectorWrapper.getSelectedOutputs(record.getValue())) {
output.collect(record);
}
}
@Override
public void emitWatermark(Watermark mark) {
for (Output<OUT> output : allOutputs) {
output.emitWatermark(mark);
}
}
@Override
public void close() {
}
}