/*
* 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.plan;
import org.apache.flink.api.common.operators.GenericDataSourceBase;
import org.apache.flink.api.common.operators.OperatorInformation;
import org.apache.flink.api.common.typeinfo.BasicTypeInfo;
import org.apache.flink.compiler.dag.DataSourceNode;
import org.apache.flink.compiler.plan.Channel;
import org.apache.flink.compiler.plan.SourcePlanNode;
import org.apache.flink.core.fs.Path;
import org.junit.Assert;
import org.junit.Test;
import org.apache.flink.api.java.io.TextInputFormat;
public class ChannelTest {
@Test
public void testGetEstimatesNoReplicationFactor() {
final long NUM_RECORD = 1001;
final long SIZE = 467131;
DataSourceNode source = getSourceNode();
SourcePlanNode planNode = new SourcePlanNode(source, "test node");
Channel channel = new Channel(planNode);
// no estimates here
Assert.assertEquals(-1, channel.getEstimatedOutputSize());
Assert.assertEquals(-1, channel.getEstimatedNumRecords());
// set estimates
source.setEstimatedNumRecords(NUM_RECORD);
source.setEstimatedOutputSize(SIZE);
Assert.assertEquals(SIZE, channel.getEstimatedOutputSize());
Assert.assertEquals(NUM_RECORD, channel.getEstimatedNumRecords());
}
@Test
public void testGetEstimatesWithReplicationFactor() {
final long NUM_RECORD = 1001;
final long SIZE = 467131;
final int REPLICATION = 23;
DataSourceNode source = getSourceNode();
SourcePlanNode planNode = new SourcePlanNode(source, "test node");
Channel channel = new Channel(planNode);
channel.setReplicationFactor(REPLICATION);
// no estimates here
Assert.assertEquals(-1, channel.getEstimatedOutputSize());
Assert.assertEquals(-1, channel.getEstimatedNumRecords());
// set estimates
source.setEstimatedNumRecords(NUM_RECORD);
source.setEstimatedOutputSize(SIZE);
Assert.assertEquals(SIZE * REPLICATION, channel.getEstimatedOutputSize());
Assert.assertEquals(NUM_RECORD * REPLICATION, channel.getEstimatedNumRecords());
}
// private static final OptimizerNode getSingleInputNode() {
// return new MapNode(new MapOperatorBase<String, String, GenericMap<String,String>>(
// new IdentityMapper<String>(),
// new UnaryOperatorInformation<String, String>(BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO),
// "map"));
// }
private static final DataSourceNode getSourceNode() {
return new DataSourceNode(new GenericDataSourceBase<String, TextInputFormat>(
new TextInputFormat(new Path("/ignored")),
new OperatorInformation<String>(BasicTypeInfo.STRING_TYPE_INFO),
"source"));
}
}