Package org.apache.flink.compiler

Source Code of org.apache.flink.compiler.FeedbackPropertiesMatchTest

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* 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.
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*/


package org.apache.flink.compiler;

import static org.apache.flink.compiler.plan.PlanNode.FeedbackPropertiesMeetRequirementsReport.*;
import static org.junit.Assert.*;

import org.apache.flink.api.common.functions.FlatJoinFunction;
import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.common.operators.BinaryOperatorInformation;
import org.apache.flink.api.common.operators.GenericDataSourceBase;
import org.apache.flink.api.common.operators.OperatorInformation;
import org.apache.flink.api.common.operators.Order;
import org.apache.flink.api.common.operators.Ordering;
import org.apache.flink.api.common.operators.UnaryOperatorInformation;
import org.apache.flink.api.common.operators.base.JoinOperatorBase;
import org.apache.flink.api.common.operators.base.MapOperatorBase;
import org.apache.flink.api.common.operators.util.FieldList;
import org.apache.flink.api.common.operators.util.FieldSet;
import org.apache.flink.api.common.typeinfo.BasicTypeInfo;
import org.apache.flink.compiler.dag.DataSourceNode;
import org.apache.flink.compiler.dag.MapNode;
import org.apache.flink.compiler.dag.MatchNode;
import org.apache.flink.compiler.dataproperties.GlobalProperties;
import org.apache.flink.compiler.dataproperties.LocalProperties;
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.DualInputPlanNode;
import org.apache.flink.compiler.plan.SingleInputPlanNode;
import org.apache.flink.compiler.plan.SourcePlanNode;
import org.apache.flink.compiler.plan.PlanNode.FeedbackPropertiesMeetRequirementsReport;
import org.apache.flink.compiler.testfunctions.DummyFlatJoinFunction;
import org.apache.flink.compiler.testfunctions.IdentityMapper;
import org.apache.flink.core.fs.Path;
import org.apache.flink.runtime.operators.DriverStrategy;
import org.apache.flink.runtime.operators.shipping.ShipStrategyType;
import org.apache.flink.runtime.operators.util.LocalStrategy;
import org.junit.Test;
import org.apache.flink.api.java.io.TextInputFormat;


public class FeedbackPropertiesMatchTest {

  @Test
  public void testNoPartialSolutionFoundSingleInputOnly() {
    try {
      SourcePlanNode target = new SourcePlanNode(getSourceNode(), "Source");
     
      SourcePlanNode otherTarget = new SourcePlanNode(getSourceNode(), "Source");
     
      Channel toMap1 = new Channel(target);
      toMap1.setShipStrategy(ShipStrategyType.FORWARD);
      toMap1.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode map1 = new SingleInputPlanNode(getMapNode(), "Mapper 1", toMap1, DriverStrategy.MAP);
     
      Channel toMap2 = new Channel(map1);
      toMap2.setShipStrategy(ShipStrategyType.FORWARD);
      toMap2.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode map2 = new SingleInputPlanNode(getMapNode(), "Mapper 2", toMap2, DriverStrategy.MAP);
     
      {
        GlobalProperties gp = new GlobalProperties();
        LocalProperties lp = new LocalProperties();
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(otherTarget, gp, lp);
        assertTrue(report == NO_PARTIAL_SOLUTION);
      }
    }
    catch (Exception e) {
      e.printStackTrace();
      fail(e.getMessage());
    }
  }
 
  @Test
  public void testSingleInputOperators() {
    try {
      SourcePlanNode target = new SourcePlanNode(getSourceNode(), "Source");
     
      Channel toMap1 = new Channel(target);
      toMap1.setShipStrategy(ShipStrategyType.FORWARD);
      toMap1.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode map1 = new SingleInputPlanNode(getMapNode(), "Mapper 1", toMap1, DriverStrategy.MAP);
     
      Channel toMap2 = new Channel(map1);
      toMap2.setShipStrategy(ShipStrategyType.FORWARD);
      toMap2.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode map2 = new SingleInputPlanNode(getMapNode(), "Mapper 2", toMap2, DriverStrategy.MAP);
     
      // no feedback properties and none are ever required and present
      {
        GlobalProperties gp = new GlobalProperties();
        LocalProperties lp = new LocalProperties();
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some global feedback properties and none are ever required and present
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2, 5));
        LocalProperties lp = new LocalProperties();
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some local feedback properties and none are ever required and present
      {
        GlobalProperties gp = new GlobalProperties();
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1, 2));
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some global and local feedback properties and none are ever required and present
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2, 5));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1, 2));
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // --------------------------- requirements on channel 1 -----------------------
     
      // some required global properties, which are matched exactly
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2, 5));
        LocalProperties lp = new LocalProperties();
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setHashPartitioned(new FieldList(2, 5));
       
        toMap1.setRequiredGlobalProps(reqGp);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some required local properties, which are matched exactly
      {
        GlobalProperties gp = new GlobalProperties();
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1, 2));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(1, 2));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(reqLp);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some required global and local properties, which are matched exactly
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2, 5));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1, 2));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setHashPartitioned(new FieldList(2, 5));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(1, 2));
       
        toMap1.setRequiredGlobalProps(reqGp);
        toMap1.setRequiredLocalProps(reqLp);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some required global and local properties, which are over-fulfilled
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1, 2));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setHashPartitioned(new FieldList(2, 5));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(1));
       
        toMap1.setRequiredGlobalProps(reqGp);
        toMap1.setRequiredLocalProps(reqLp);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some required global properties that are not met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2, 1));
        LocalProperties lp = new LocalProperties();
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setHashPartitioned(new FieldList(2, 5));
       
        toMap1.setRequiredGlobalProps(reqGp);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // some required local properties that are not met
      {
        GlobalProperties gp = new GlobalProperties();
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(2, 1));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(reqLp);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // some required global and local properties where the global properties are not met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2, 1));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldList(2, 5));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(1));
       
        toMap1.setRequiredGlobalProps(reqGp);
        toMap1.setRequiredLocalProps(reqLp);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // some required global and local properties where the local properties are not met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldList(1));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(2));
       
        toMap1.setRequiredGlobalProps(reqGp);
        toMap1.setRequiredLocalProps(reqLp);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // --------------------------- requirements on channel 2 -----------------------
     
      // some required global properties, which are matched exactly
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2, 5));
        LocalProperties lp = new LocalProperties();
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setHashPartitioned(new FieldList(2, 5));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(reqGp);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some required local properties, which are matched exactly
      {
        GlobalProperties gp = new GlobalProperties();
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1, 2));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(1, 2));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(reqLp);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some required global and local properties, which are matched exactly
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2, 5));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1, 2));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setHashPartitioned(new FieldList(2, 5));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(1, 2));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(reqGp);
        toMap2.setRequiredLocalProps(reqLp);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some required global and local properties, which are over-fulfilled
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1, 2));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setHashPartitioned(new FieldList(2, 5));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(1));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(reqGp);
        toMap2.setRequiredLocalProps(reqLp);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some required global properties that are not met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2, 1));
        LocalProperties lp = new LocalProperties();
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setHashPartitioned(new FieldList(2, 5));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(reqGp);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // some required local properties that are not met
      {
        GlobalProperties gp = new GlobalProperties();
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(2, 1));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(reqLp);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // some required global and local properties where the global properties are not met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(2, 1));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldList(2, 5));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(1));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(reqGp);
        toMap2.setRequiredLocalProps(reqLp);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // some required global and local properties where the local properties are not met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(1));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldList(1));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(2));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(reqGp);
        toMap2.setRequiredLocalProps(reqLp);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // ---------------------- requirements mixed on 1 and 2 -----------------------
     
      // some required global properties at step one and some more at step 2
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.EMPTY;
       
        RequestedGlobalProperties reqGp1 = new RequestedGlobalProperties();
        reqGp1.setAnyPartitioning(new FieldList(1, 2));
       
        RequestedGlobalProperties reqGp2 = new RequestedGlobalProperties();
        reqGp2.setHashPartitioned(new FieldList(1, 2));
       
        toMap1.setRequiredGlobalProps(reqGp1);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(reqGp2);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some required local properties at step one and some more at step 2
      {
        GlobalProperties gp = new GlobalProperties();
        LocalProperties lp = LocalProperties.forOrdering(new Ordering(3, null, Order.ASCENDING).appendOrdering(1, null, Order.DESCENDING));
       
        RequestedLocalProperties reqLp1 = new RequestedLocalProperties();
        reqLp1.setGroupedFields(new FieldList(3, 1));
       
        RequestedLocalProperties reqLp2 = new RequestedLocalProperties();
        reqLp2.setOrdering(new Ordering(3, null, Order.ANY).appendOrdering(1, null, Order.ANY));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(reqLp1);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(reqLp2);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some required global properties at step one and some local ones at step 2
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldList(1, 2));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(2));
       
        toMap1.setRequiredGlobalProps(reqGp);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(reqLp);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some required local properties at step one and some global ones at step 2
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldList(1, 2));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(2));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(reqLp);
       
        toMap2.setRequiredGlobalProps(reqGp);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some fulfilled global properties at step one and some non-fulfilled local ones at step 2
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldList(1, 2));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(2, 3));
       
        toMap1.setRequiredGlobalProps(reqGp);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(reqLp);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // some fulfilled local properties at step one and some non-fulfilled global ones at step 2
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldList(2, 3));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(2, 1));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(reqLp);
       
        toMap2.setRequiredGlobalProps(reqGp);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // some non-fulfilled global properties at step one and some fulfilled local ones at step 2
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldList(2, 3));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(2, 1));
       
        toMap1.setRequiredGlobalProps(reqGp);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(reqLp);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // some non-fulfilled local properties at step one and some fulfilled global ones at step 2
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldList(1, 2));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(2, 1, 3));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(reqLp);
       
        toMap2.setRequiredGlobalProps(reqGp);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
    }
    catch (Exception e) {
      e.printStackTrace();
      fail(e.getMessage());
    }
  }
 
  @Test
  public void testSingleInputOperatorsWithReCreation() {
    try {
      SourcePlanNode target = new SourcePlanNode(getSourceNode(), "Source");
     
      Channel toMap1 = new Channel(target);
      SingleInputPlanNode map1 = new SingleInputPlanNode(getMapNode(), "Mapper 1", toMap1, DriverStrategy.MAP);
     
      Channel toMap2 = new Channel(map1);
      SingleInputPlanNode map2 = new SingleInputPlanNode(getMapNode(), "Mapper 2", toMap2, DriverStrategy.MAP);
     
      // set ship strategy in first channel, so later non matching global properties do not matter
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.EMPTY;
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldSet(2, 5));
       
        toMap1.setShipStrategy(ShipStrategyType.PARTITION_HASH, new FieldList(2, 5));
        toMap1.setLocalStrategy(LocalStrategy.NONE);
       
        toMap2.setShipStrategy(ShipStrategyType.FORWARD);
        toMap2.setLocalStrategy(LocalStrategy.NONE);
       
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(reqGp);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(MET, report);
      }
     
      // set ship strategy in second channel, so previous non matching global properties void the match
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.EMPTY;
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldSet(2, 5));
       
        toMap1.setShipStrategy(ShipStrategyType.FORWARD);
        toMap1.setLocalStrategy(LocalStrategy.NONE);
       
        toMap2.setShipStrategy(ShipStrategyType.PARTITION_HASH, new FieldList(2, 5));
        toMap2.setLocalStrategy(LocalStrategy.NONE);
       
       
        toMap1.setRequiredGlobalProps(reqGp);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // set local strategy in first channel, so later non matching local properties do not matter
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.forOrdering(new Ordering(3, null, Order.ASCENDING).appendOrdering(1, null, Order.DESCENDING));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(4, 1));
       
        toMap1.setShipStrategy(ShipStrategyType.FORWARD);
        toMap1.setLocalStrategy(LocalStrategy.SORT, new FieldList(5, 7), new boolean[] {false, false});
       
        toMap2.setShipStrategy(ShipStrategyType.FORWARD);
        toMap2.setLocalStrategy(LocalStrategy.NONE);
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(reqLp);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // set local strategy in second channel, so previous non matching local properties void the match
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.forOrdering(new Ordering(3, null, Order.ASCENDING).appendOrdering(1, null, Order.DESCENDING));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(4, 1));
       
        toMap1.setShipStrategy(ShipStrategyType.FORWARD);
        toMap1.setLocalStrategy(LocalStrategy.NONE);
       
        toMap2.setShipStrategy(ShipStrategyType.FORWARD);
        toMap2.setLocalStrategy(LocalStrategy.SORT, new FieldList(5, 7), new boolean[] {false, false});
       
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(reqLp);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // create the properties on the same node as the requirement
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(1, 2));
        LocalProperties lp = LocalProperties.forOrdering(new Ordering(3, null, Order.ASCENDING).appendOrdering(1, null, Order.DESCENDING));
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldSet(5, 7));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(5, 7));
       
        toMap1.setShipStrategy(ShipStrategyType.PARTITION_HASH, new FieldList(5, 7));
        toMap1.setLocalStrategy(LocalStrategy.SORT, new FieldList(5, 7), new boolean[] {false, false});
       
        toMap2.setShipStrategy(ShipStrategyType.FORWARD);
        toMap2.setLocalStrategy(LocalStrategy.NONE);
       
        toMap1.setRequiredGlobalProps(reqGp);
        toMap1.setRequiredLocalProps(reqLp);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map2.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(MET, report);
      }
    }
    catch (Exception e) {
      e.printStackTrace();
      fail(e.getMessage());
    }
  }
 
  @Test
  public void testSingleInputOperatorsChainOfThree() {
    try {
      SourcePlanNode target = new SourcePlanNode(getSourceNode(), "Source");
     
      Channel toMap1 = new Channel(target);
      SingleInputPlanNode map1 = new SingleInputPlanNode(getMapNode(), "Mapper 1", toMap1, DriverStrategy.MAP);
     
      Channel toMap2 = new Channel(map1);
      SingleInputPlanNode map2 = new SingleInputPlanNode(getMapNode(), "Mapper 2", toMap2, DriverStrategy.MAP);
     
      Channel toMap3 = new Channel(map2);
      SingleInputPlanNode map3 = new SingleInputPlanNode(getMapNode(), "Mapper 3", toMap3, DriverStrategy.MAP);
     
      // set local strategy in first channel, so later non matching local properties do not matter
      {
        GlobalProperties gp = new GlobalProperties();
        LocalProperties lp = LocalProperties.forOrdering(new Ordering(3, null, Order.ASCENDING).appendOrdering(1, null, Order.DESCENDING));
       
        RequestedLocalProperties reqLp = new RequestedLocalProperties();
        reqLp.setGroupedFields(new FieldList(4, 1));
       
        toMap1.setShipStrategy(ShipStrategyType.FORWARD);
        toMap1.setLocalStrategy(LocalStrategy.SORT, new FieldList(5, 7), new boolean[] {false, false});
       
        toMap2.setShipStrategy(ShipStrategyType.FORWARD);
        toMap2.setLocalStrategy(LocalStrategy.NONE);
       
        toMap3.setShipStrategy(ShipStrategyType.FORWARD);
        toMap3.setLocalStrategy(LocalStrategy.NONE);
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        toMap3.setRequiredGlobalProps(null);
        toMap3.setRequiredLocalProps(reqLp);
       
        FeedbackPropertiesMeetRequirementsReport report = map3.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // set global strategy in first channel, so later non matching global properties do not matter
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(5, 3));
        LocalProperties lp = LocalProperties.EMPTY;
       
        RequestedGlobalProperties reqGp = new RequestedGlobalProperties();
        reqGp.setAnyPartitioning(new FieldSet(2, 3));
       
        toMap1.setShipStrategy(ShipStrategyType.PARTITION_HASH, new FieldList(1, 2));
        toMap1.setLocalStrategy(LocalStrategy.NONE);
       
        toMap2.setShipStrategy(ShipStrategyType.FORWARD);
        toMap2.setLocalStrategy(LocalStrategy.NONE);
       
        toMap3.setShipStrategy(ShipStrategyType.FORWARD);
        toMap3.setLocalStrategy(LocalStrategy.NONE);
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toMap2.setRequiredGlobalProps(null);
        toMap2.setRequiredLocalProps(null);
       
        toMap3.setRequiredGlobalProps(reqGp);
        toMap3.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = map3.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
    }
    catch (Exception e) {
      e.printStackTrace();
      fail(e.getMessage());
    }
  }
 
  @Test
  public void testNoPartialSolutionFoundTwoInputOperator() {
    try {
      SourcePlanNode target = new SourcePlanNode(getSourceNode(), "Partial Solution");

      SourcePlanNode source1 = new SourcePlanNode(getSourceNode(), "Source 1");
      SourcePlanNode source2 = new SourcePlanNode(getSourceNode(), "Source 2");
     
      Channel toMap1 = new Channel(source1);
      toMap1.setShipStrategy(ShipStrategyType.FORWARD);
      toMap1.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode map1 = new SingleInputPlanNode(getMapNode(), "Mapper 1", toMap1, DriverStrategy.MAP);
     
      Channel toMap2 = new Channel(source2);
      toMap2.setShipStrategy(ShipStrategyType.FORWARD);
      toMap2.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode map2 = new SingleInputPlanNode(getMapNode(), "Mapper 2", toMap2, DriverStrategy.MAP);
     
      Channel toJoin1 = new Channel(map1);
      Channel toJoin2 = new Channel(map2);
     
      toJoin1.setShipStrategy(ShipStrategyType.FORWARD);
      toJoin1.setLocalStrategy(LocalStrategy.NONE);
      toJoin2.setShipStrategy(ShipStrategyType.FORWARD);
      toJoin2.setLocalStrategy(LocalStrategy.NONE);
     
      DualInputPlanNode join = new DualInputPlanNode(getJoinNode(), "Join", toJoin1, toJoin2, DriverStrategy.HYBRIDHASH_BUILD_FIRST);
     
      FeedbackPropertiesMeetRequirementsReport report = join.checkPartialSolutionPropertiesMet(target, new GlobalProperties(), new LocalProperties());
      assertEquals(NO_PARTIAL_SOLUTION, report);
    }
    catch (Exception e) {
      e.printStackTrace();
      fail(e.getMessage());
    }
  }
 
  @Test
  public void testTwoOperatorsOneIndependent() {
    try {
      SourcePlanNode target = new SourcePlanNode(getSourceNode(), "Partial Solution");
      SourcePlanNode source = new SourcePlanNode(getSourceNode(), "Other Source");
     
      Channel toMap1 = new Channel(target);
      toMap1.setShipStrategy(ShipStrategyType.FORWARD);
      toMap1.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode map1 = new SingleInputPlanNode(getMapNode(), "Mapper 1", toMap1, DriverStrategy.MAP);
     
      Channel toMap2 = new Channel(source);
      toMap2.setShipStrategy(ShipStrategyType.FORWARD);
      toMap2.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode map2 = new SingleInputPlanNode(getMapNode(), "Mapper 2", toMap2, DriverStrategy.MAP);
     
      Channel toJoin1 = new Channel(map1);
      Channel toJoin2 = new Channel(map2);
     
      DualInputPlanNode join = new DualInputPlanNode(getJoinNode(), "Join", toJoin1, toJoin2, DriverStrategy.HYBRIDHASH_BUILD_FIRST);
     
      Channel toAfterJoin = new Channel(join);
      toAfterJoin.setShipStrategy(ShipStrategyType.FORWARD);
      toAfterJoin.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode afterJoin = new SingleInputPlanNode(getMapNode(), "After Join Mapper", toAfterJoin, DriverStrategy.MAP);
     
      // attach some properties to the non-relevant input
      {
        toMap2.setShipStrategy(ShipStrategyType.BROADCAST);
        toMap2.setLocalStrategy(LocalStrategy.SORT, new FieldList(2, 7), new boolean[] {true, true});
       
        RequestedGlobalProperties joinGp = new RequestedGlobalProperties();
        joinGp.setFullyReplicated();
       
        RequestedLocalProperties joinLp = new RequestedLocalProperties();
        joinLp.setOrdering(new Ordering(2, null, Order.ASCENDING).appendOrdering(7, null, Order.ASCENDING));
       
        toJoin2.setShipStrategy(ShipStrategyType.FORWARD);
        toJoin2.setLocalStrategy(LocalStrategy.NONE);
        toJoin2.setRequiredGlobalProps(joinGp);
        toJoin2.setRequiredLocalProps(joinLp);
      }
     
      // ------------------------------------------------------------------------------------
     
      // no properties from the partial solution, no required properties
      {
        toJoin1.setShipStrategy(ShipStrategyType.FORWARD);
        toJoin1.setLocalStrategy(LocalStrategy.NONE);
       
        GlobalProperties gp = new GlobalProperties();
        LocalProperties lp = LocalProperties.EMPTY;
       
        FeedbackPropertiesMeetRequirementsReport report = join.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some properties from the partial solution, no required properties
      {
        toJoin1.setShipStrategy(ShipStrategyType.FORWARD);
        toJoin1.setLocalStrategy(LocalStrategy.NONE);
       
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        FeedbackPropertiesMeetRequirementsReport report = join.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
     
      // produced properties match relevant input
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(0));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(2));
       
        toJoin1.setRequiredGlobalProps(rgp);
        toJoin1.setRequiredLocalProps(rlp);
       
        toJoin1.setShipStrategy(ShipStrategyType.FORWARD);
        toJoin1.setLocalStrategy(LocalStrategy.NONE);
       
        FeedbackPropertiesMeetRequirementsReport report = join.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // produced properties do not match relevant input
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(0));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(1, 2, 3));
       
        toJoin1.setRequiredGlobalProps(rgp);
        toJoin1.setRequiredLocalProps(rlp);
       
        toJoin1.setShipStrategy(ShipStrategyType.FORWARD);
        toJoin1.setLocalStrategy(LocalStrategy.NONE);
       
        FeedbackPropertiesMeetRequirementsReport report = join.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // produced properties overridden before join
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(0));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(2, 1));
       
        toMap1.setRequiredGlobalProps(rgp);
        toMap1.setRequiredLocalProps(rlp);
       
        toJoin1.setRequiredGlobalProps(null);
        toJoin1.setRequiredLocalProps(null);
       
        toJoin1.setShipStrategy(ShipStrategyType.PARTITION_HASH, new FieldList(2, 1));
        toJoin1.setLocalStrategy(LocalStrategy.SORT, new FieldList(7, 3), new boolean[] {true, false});
       
        FeedbackPropertiesMeetRequirementsReport report = join.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(MET, report);
      }
     
      // produced properties before join match, after join match as well
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(0));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(2, 1));
       
        toMap1.setRequiredGlobalProps(null);
        toMap1.setRequiredLocalProps(null);
       
        toJoin1.setShipStrategy(ShipStrategyType.FORWARD);
        toJoin1.setLocalStrategy(LocalStrategy.NONE);
       
        toJoin1.setRequiredGlobalProps(rgp);
        toJoin1.setRequiredLocalProps(rlp);
     
        toAfterJoin.setShipStrategy(ShipStrategyType.FORWARD);
        toAfterJoin.setLocalStrategy(LocalStrategy.NONE);
       
        toAfterJoin.setRequiredGlobalProps(rgp);
        toAfterJoin.setRequiredLocalProps(rlp);
       
        FeedbackPropertiesMeetRequirementsReport report = join.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // produced properties before join match, after join do not match
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp1 = new RequestedGlobalProperties();
        rgp1.setHashPartitioned(new FieldList(0));
       
        RequestedGlobalProperties rgp2 = new RequestedGlobalProperties();
        rgp2.setHashPartitioned(new FieldList(3));
       
        RequestedLocalProperties rlp1 = new RequestedLocalProperties();
        rlp1.setGroupedFields(new FieldList(2, 1));
       
        RequestedLocalProperties rlp2 = new RequestedLocalProperties();
        rlp2.setGroupedFields(new FieldList(3, 4));
       
        toJoin1.setRequiredGlobalProps(rgp1);
        toJoin1.setRequiredLocalProps(rlp1);
     
        toAfterJoin.setShipStrategy(ShipStrategyType.FORWARD);
        toAfterJoin.setLocalStrategy(LocalStrategy.NONE);
       
        toAfterJoin.setRequiredGlobalProps(rgp2);
        toAfterJoin.setRequiredLocalProps(rlp2);
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // produced properties are overridden, does not matter that they do not match
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setAnyPartitioning(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(1));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(1, 2, 3));
       
        toJoin1.setRequiredGlobalProps(null);
        toJoin1.setRequiredLocalProps(null);
       
        toJoin1.setShipStrategy(ShipStrategyType.PARTITION_HASH, new FieldList(2, 1));
        toJoin1.setLocalStrategy(LocalStrategy.SORT, new FieldList(7, 3), new boolean[] {true, false});
       
        toAfterJoin.setRequiredGlobalProps(rgp);
        toAfterJoin.setRequiredLocalProps(rlp);
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(MET, report);
      }
     
      // local property overridden before join, local property mismatch after join not relevant
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setAnyPartitioning(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(1, 2, 3));
       
        toJoin1.setRequiredGlobalProps(null);
        toJoin1.setRequiredLocalProps(null);
       
        toJoin1.setShipStrategy(ShipStrategyType.FORWARD);
        toJoin1.setLocalStrategy(LocalStrategy.SORT, new FieldList(7, 3), new boolean[] {true, false});
       
        toAfterJoin.setRequiredGlobalProps(null);
        toAfterJoin.setRequiredLocalProps(rlp);
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // local property overridden before join, global property mismatch after join void the match
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setAnyPartitioning(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(1));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(1, 2, 3));
       
        toJoin1.setRequiredGlobalProps(null);
        toJoin1.setRequiredLocalProps(null);
       
        toJoin1.setShipStrategy(ShipStrategyType.FORWARD);
        toJoin1.setLocalStrategy(LocalStrategy.SORT, new FieldList(7, 3), new boolean[] {true, false});
       
        toAfterJoin.setRequiredGlobalProps(rgp);
        toAfterJoin.setRequiredLocalProps(rlp);
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
    }
    catch (Exception e) {
      e.printStackTrace();
      fail(e.getMessage());
    }
  }
 
  @Test
  public void testTwoOperatorsBothDependent() {
    try {
      SourcePlanNode target = new SourcePlanNode(getSourceNode(), "Partial Solution");
     
      Channel toMap1 = new Channel(target);
      toMap1.setShipStrategy(ShipStrategyType.FORWARD);
      toMap1.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode map1 = new SingleInputPlanNode(getMapNode(), "Mapper 1", toMap1, DriverStrategy.MAP);
     
      Channel toMap2 = new Channel(target);
      toMap2.setShipStrategy(ShipStrategyType.FORWARD);
      toMap2.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode map2 = new SingleInputPlanNode(getMapNode(), "Mapper 2", toMap2, DriverStrategy.MAP);
     
      Channel toJoin1 = new Channel(map1);
      toJoin1.setShipStrategy(ShipStrategyType.FORWARD);
      toJoin1.setLocalStrategy(LocalStrategy.NONE);
     
      Channel toJoin2 = new Channel(map2);
      toJoin2.setShipStrategy(ShipStrategyType.FORWARD);
      toJoin2.setLocalStrategy(LocalStrategy.NONE);
     
      DualInputPlanNode join = new DualInputPlanNode(getJoinNode(), "Join", toJoin1, toJoin2, DriverStrategy.HYBRIDHASH_BUILD_FIRST);
     
      Channel toAfterJoin = new Channel(join);
      toAfterJoin.setShipStrategy(ShipStrategyType.FORWARD);
      toAfterJoin.setLocalStrategy(LocalStrategy.NONE);
      SingleInputPlanNode afterJoin = new SingleInputPlanNode(getMapNode(), "After Join Mapper", toAfterJoin, DriverStrategy.MAP);
     
      // no properties from the partial solution, no required properties
      {
        GlobalProperties gp = new GlobalProperties();
        LocalProperties lp = LocalProperties.EMPTY;
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // some properties from the partial solution, no required properties
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // test requirements on one input and met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(0));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(2, 1));
       
        toJoin1.setRequiredGlobalProps(rgp);
        toJoin1.setRequiredLocalProps(rlp);
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // test requirements on both input and met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(0));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(2, 1));
       
        toJoin1.setRequiredGlobalProps(rgp);
        toJoin1.setRequiredLocalProps(rlp);
       
        toJoin2.setRequiredGlobalProps(rgp);
        toJoin2.setRequiredLocalProps(rlp);
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertTrue(report != null && report != NO_PARTIAL_SOLUTION && report != NOT_MET);
      }
     
      // test requirements on both inputs, one not met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp1 = new RequestedGlobalProperties();
        rgp1.setHashPartitioned(new FieldList(0));
       
        RequestedLocalProperties rlp1 = new RequestedLocalProperties();
        rlp1.setGroupedFields(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp2 = new RequestedGlobalProperties();
        rgp2.setHashPartitioned(new FieldList(1));
       
        RequestedLocalProperties rlp2 = new RequestedLocalProperties();
        rlp2.setGroupedFields(new FieldList(0, 3));
       
        toJoin1.setRequiredGlobalProps(rgp1);
        toJoin1.setRequiredLocalProps(rlp1);
       
        toJoin2.setRequiredGlobalProps(rgp2);
        toJoin2.setRequiredLocalProps(rlp2);
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // test override on both inputs, later requirement ignored
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(1));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(0, 3));
       
        toJoin1.setRequiredGlobalProps(null);
        toJoin1.setRequiredLocalProps(null);
       
        toJoin2.setRequiredGlobalProps(null);
        toJoin2.setRequiredLocalProps(null);
       
        toJoin1.setShipStrategy(ShipStrategyType.PARTITION_HASH, new FieldList(88));
        toJoin2.setShipStrategy(ShipStrategyType.BROADCAST);
       
        toAfterJoin.setRequiredGlobalProps(rgp);
        toAfterJoin.setRequiredLocalProps(rlp);
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(MET, report);
      }
     
      // test override on one inputs, later requirement met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(0));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(2, 1));
       
        toJoin1.setShipStrategy(ShipStrategyType.PARTITION_HASH, new FieldList(88));
        toJoin2.setShipStrategy(ShipStrategyType.FORWARD);
       
        toAfterJoin.setRequiredGlobalProps(rgp);
        toAfterJoin.setRequiredLocalProps(rlp);
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(PENDING, report);
      }
     
      // test override on one input, later requirement not met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(3));
       
        RequestedLocalProperties rlp = new RequestedLocalProperties();
        rlp.setGroupedFields(new FieldList(77, 69));
       
        toJoin1.setShipStrategy(ShipStrategyType.PARTITION_HASH, new FieldList(88));
        toJoin2.setShipStrategy(ShipStrategyType.FORWARD);
       
        toAfterJoin.setRequiredGlobalProps(rgp);
        toAfterJoin.setRequiredLocalProps(rlp);
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
     
      // test override on one input locally, later global requirement not met
      {
        GlobalProperties gp = new GlobalProperties();
        gp.setHashPartitioned(new FieldList(0));
        LocalProperties lp = LocalProperties.forGrouping(new FieldList(2, 1));
       
        RequestedGlobalProperties rgp = new RequestedGlobalProperties();
        rgp.setHashPartitioned(new FieldList(3));
       
       
        toJoin1.setShipStrategy(ShipStrategyType.FORWARD);
        toJoin1.setLocalStrategy(LocalStrategy.SORT, new FieldList(3), new boolean[] { false });
       
        toJoin2.setShipStrategy(ShipStrategyType.FORWARD);
        toJoin1.setLocalStrategy(LocalStrategy.NONE);
       
        toAfterJoin.setRequiredGlobalProps(rgp);
        toAfterJoin.setRequiredLocalProps(null);
       
        FeedbackPropertiesMeetRequirementsReport report = afterJoin.checkPartialSolutionPropertiesMet(target, gp, lp);
        assertEquals(NOT_MET, report);
      }
    }
    catch (Exception e) {
      e.printStackTrace();
      fail(e.getMessage());
    }
  }
 
  // --------------------------------------------------------------------------------------------
 
  private static final DataSourceNode getSourceNode() {
    return new DataSourceNode(new GenericDataSourceBase<String, TextInputFormat>(new TextInputFormat(new Path("/")), new OperatorInformation<String>(BasicTypeInfo.STRING_TYPE_INFO)));
  }
 
  private static final MapNode getMapNode() {
    return new MapNode(new MapOperatorBase<String, String, MapFunction<String,String>>(new IdentityMapper<String>(), new UnaryOperatorInformation<String, String>(BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO), "map op"));
  }
 
  private static final MatchNode getJoinNode() {
    return new MatchNode(new JoinOperatorBase<String, String, String, FlatJoinFunction<String, String, String>>(new DummyFlatJoinFunction<String>(), new BinaryOperatorInformation<String, String, String>(BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO), new int[] {1}, new int[] {2}, "join op"));
  }
}
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