Package eu.stratosphere.api.common.operators

Examples of eu.stratosphere.api.common.operators.Ordering

162
163
164
165
166
167
168
169
170
171
172
        .field(IntValue.class, 0)
        .field(IntValue.class, 1)
        .field(IntValue.class, 2);
     
      sink.setGlobalOrder(
        new Ordering(0, IntValue.class, Order.DESCENDING)
          .appendOrdering(1, IntValue.class, Order.ASCENDING)
          .appendOrdering(2, IntValue.class, Order.DESCENDING),
        new TripleIntDistribution(Order.DESCENDING, Order.ASCENDING, Order.DESCENDING));
      sink.setInput(source);
     
View Full Code Here
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
  public void testReduceWithGroupOrder() {
    // construct the plan
    FileDataSource source = new FileDataSource(new DummyInputFormat(), IN_FILE, "Source");
   
    ReduceOperator reduce = ReduceOperator.builder(new IdentityReduce()).keyField(IntValue.class, 2).name("Reduce").input(source).build();
    Ordering groupOrder = new Ordering(5, StringValue.class, Order.DESCENDING);
    reduce.setGroupOrder(groupOrder);
   
    FileDataSink sink = new FileDataSink(new DummyOutputFormat(), OUT_FILE, reduce, "Sink");
   
   
    Plan plan = new Plan(sink, "Test Temp Task");
    plan.setDefaultParallelism(DEFAULT_PARALLELISM);
   
    OptimizedPlan oPlan;
    try {
      oPlan = compileNoStats(plan);
    } catch(CompilerException ce) {
      ce.printStackTrace();
      fail("The pact compiler is unable to compile this plan correctly.");
      return; // silence the compiler
    }
   
    OptimizerPlanNodeResolver resolver = getOptimizerPlanNodeResolver(oPlan);
    SinkPlanNode sinkNode = resolver.getNode("Sink");
    SingleInputPlanNode reducer = resolver.getNode("Reduce");
   
    // verify the strategies
    Assert.assertEquals(ShipStrategyType.FORWARD, sinkNode.getInput().getShipStrategy());
    Assert.assertEquals(ShipStrategyType.PARTITION_HASH, reducer.getInput().getShipStrategy());
   
    Channel c = reducer.getInput();
    Assert.assertEquals(LocalStrategy.SORT, c.getLocalStrategy());
   
    FieldList ship = new FieldList(2);
    FieldList local = new FieldList(2);
    local.add(5);
    Assert.assertEquals(ship, c.getShipStrategyKeys());
    Assert.assertEquals(local, c.getLocalStrategyKeys());
    Assert.assertTrue(c.getLocalStrategySortOrder()[0] == reducer.getSortOrders()[0]);
   
    // check that we indeed sort descending
    Assert.assertTrue(c.getLocalStrategySortOrder()[1] == groupOrder.getFieldSortDirections()[0]);
  }
View Full Code Here
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
   
    CoGroupOperator coGroup = CoGroupOperator.builder(new DummyCoGroupStub(), IntValue.class, 3, 6)
        .keyField(LongValue.class, 0, 0)
        .name("CoGroup").input1(source1).input2(source2).build();
   
    Ordering groupOrder1 = new Ordering(5, StringValue.class, Order.DESCENDING);
    Ordering groupOrder2 = new Ordering(1, StringValue.class, Order.DESCENDING);
    groupOrder2.appendOrdering(4, DoubleValue.class, Order.ASCENDING);
    coGroup.setGroupOrderForInputOne(groupOrder1);
    coGroup.setGroupOrderForInputTwo(groupOrder2);
   
    FileDataSink sink = new FileDataSink(new DummyOutputFormat(), OUT_FILE, coGroup, "Sink");
   
    Plan plan = new Plan(sink, "Reduce Group Order Test");
    plan.setDefaultParallelism(DEFAULT_PARALLELISM);
   
    OptimizedPlan oPlan;
    try {
      oPlan = compileNoStats(plan);
    } catch(CompilerException ce) {
      ce.printStackTrace();
      fail("The pact compiler is unable to compile this plan correctly.");
      return; // silence the compiler
    }
   
    OptimizerPlanNodeResolver resolver = getOptimizerPlanNodeResolver(oPlan);
    SinkPlanNode sinkNode = resolver.getNode("Sink");
    DualInputPlanNode coGroupNode = resolver.getNode("CoGroup");
   
    // verify the strategies
    Assert.assertEquals(ShipStrategyType.FORWARD, sinkNode.getInput().getShipStrategy());
    Assert.assertEquals(ShipStrategyType.PARTITION_HASH, coGroupNode.getInput1().getShipStrategy());
    Assert.assertEquals(ShipStrategyType.PARTITION_HASH, coGroupNode.getInput2().getShipStrategy());
   
    Channel c1 = coGroupNode.getInput1();
    Channel c2 = coGroupNode.getInput2();
   
    Assert.assertEquals(LocalStrategy.SORT, c1.getLocalStrategy());
    Assert.assertEquals(LocalStrategy.SORT, c2.getLocalStrategy());
   
    FieldList ship1 = new FieldList(new int[] {3, 0});
    FieldList ship2 = new FieldList(new int[] {6, 0});
   
    FieldList local1 = new FieldList(new int[] {3, 0, 5});
    FieldList local2 = new FieldList(new int[] {6, 0, 1, 4});
   
    Assert.assertEquals(ship1, c1.getShipStrategyKeys());
    Assert.assertEquals(ship2, c2.getShipStrategyKeys());
    Assert.assertEquals(local1, c1.getLocalStrategyKeys());
    Assert.assertEquals(local2, c2.getLocalStrategyKeys());
   
    Assert.assertTrue(c1.getLocalStrategySortOrder()[0] == coGroupNode.getSortOrders()[0]);
    Assert.assertTrue(c1.getLocalStrategySortOrder()[1] == coGroupNode.getSortOrders()[1]);
    Assert.assertTrue(c2.getLocalStrategySortOrder()[0] == coGroupNode.getSortOrders()[0]);
    Assert.assertTrue(c2.getLocalStrategySortOrder()[1] == coGroupNode.getSortOrders()[1]);
   
    // check that the local group orderings are correct
    Assert.assertTrue(c1.getLocalStrategySortOrder()[2] == groupOrder1.getFieldSortDirections()[0]);
    Assert.assertTrue(c2.getLocalStrategySortOrder()[2] == groupOrder2.getFieldSortDirections()[0]);
    Assert.assertTrue(c2.getLocalStrategySortOrder()[3] == groupOrder2.getFieldSortDirections()[1]);
  }
View Full Code Here
TOP

Related Classes of eu.stratosphere.api.common.operators.Ordering

  • eu.stratosphere.api.java.operators.ReduceGroupOperator
  • eu.stratosphere.compiler.dag.CoGroupNode
  • eu.stratosphere.compiler.dag.DataSinkNode
  • eu.stratosphere.compiler.dag.GroupReduceNode
  • eu.stratosphere.compiler.dataproperties.LocalProperties
  • eu.stratosphere.compiler.operators.CoGroupDescriptor
  • eu.stratosphere.compiler.operators.GroupReduceProperties
  • eu.stratosphere.compiler.operators.GroupReduceWithCombineProperties
  • eu.stratosphere.compiler.operators.SortMergeJoinDescriptor
  • eu.stratosphere.compiler.postpass.RecordModelPostPass
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.