/*
* 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.compiler.operators;
import java.util.Collections;
import java.util.List;
import org.apache.flink.compiler.dag.SingleInputNode;
import org.apache.flink.compiler.dataproperties.GlobalProperties;
import org.apache.flink.compiler.dataproperties.LocalProperties;
import org.apache.flink.compiler.dataproperties.PartitioningProperty;
import org.apache.flink.compiler.dataproperties.RequestedGlobalProperties;
import org.apache.flink.compiler.dataproperties.RequestedLocalProperties;
import org.apache.flink.compiler.plan.Channel;
import org.apache.flink.compiler.plan.SingleInputPlanNode;
import org.apache.flink.runtime.operators.DriverStrategy;
public class CollectorMapDescriptor extends OperatorDescriptorSingle {
@Override
public DriverStrategy getStrategy() {
return DriverStrategy.COLLECTOR_MAP;
}
@Override
public SingleInputPlanNode instantiate(Channel in, SingleInputNode node) {
return new SingleInputPlanNode(node, "Map ("+node.getPactContract().getName()+")", in, DriverStrategy.COLLECTOR_MAP);
}
@Override
protected List<RequestedGlobalProperties> createPossibleGlobalProperties() {
return Collections.singletonList(new RequestedGlobalProperties());
}
@Override
protected List<RequestedLocalProperties> createPossibleLocalProperties() {
return Collections.singletonList(new RequestedLocalProperties());
}
@Override
public GlobalProperties computeGlobalProperties(GlobalProperties gProps) {
if (gProps.getUniqueFieldCombination() != null && gProps.getUniqueFieldCombination().size() > 0 &&
gProps.getPartitioning() == PartitioningProperty.RANDOM)
{
gProps.setAnyPartitioning(gProps.getUniqueFieldCombination().iterator().next().toFieldList());
}
gProps.clearUniqueFieldCombinations();
return gProps;
}
@Override
public LocalProperties computeLocalProperties(LocalProperties lProps) {
return lProps.clearUniqueFieldSets();
}
}