Examples with ISink edu.uci.ics.textdb.api.dataflow.ISink used on opensource projects

Example 1 with ISink

use of edu.uci.ics.textdb.api.dataflow.ISink in project textdb by TextDB.

the class LogicalPlan method buildQueryPlan.

/**
     * Builds and returns the query plan from the operator graph.
     * 
     * @return the plan generated from the operator graph
     * @throws PlanGenException, if the operator graph is invalid.
     */
public Plan buildQueryPlan() throws PlanGenException {
    HashMap<String, IOperator> operatorObjectMap = buildOperators();
    validateOperatorGraph();
    connectOperators(operatorObjectMap);
    ISink sink = findSinkOperator(operatorObjectMap);
    Plan queryPlan = new Plan(sink);
    return queryPlan;
}

Example 2 with ISink

use of edu.uci.ics.textdb.api.dataflow.ISink in project textdb by TextDB.

the class LogicalPlanTest method testLogicalPlan3.

/*
     * Test a valid operator graph.
     * 
     *                  --> RegexMatcher -->
     *                  |                    >-- Join1
     * KeywordSource --< -> NlpEntityOperator -->          >-- Join2 --> TupleSink
     *                  |                           /
     *                  --> FuzzyTokenMatcher ----->
     * 
     */
@Test
public void testLogicalPlan3() throws Exception {
    LogicalPlan logicalPlan = getLogicalPlan3();
    Plan queryPlan = logicalPlan.buildQueryPlan();
    ISink tupleSink = queryPlan.getRoot();
    Assert.assertTrue(tupleSink instanceof TupleSink);
    IOperator join2 = ((TupleSink) tupleSink).getInputOperator();
    Assert.assertTrue(join2 instanceof Join);
    IOperator join2Input1 = ((Join) join2).getOuterInputOperator();
    Assert.assertTrue(join2Input1 instanceof Join);
    IOperator join2Input2 = ((Join) join2).getInnerInputOperator();
    Assert.assertTrue(join2Input2 instanceof FuzzyTokenMatcher);
    IOperator join1Input1 = ((Join) join2Input1).getInnerInputOperator();
    Assert.assertTrue(join1Input1 instanceof RegexMatcher);
    IOperator join1Input2 = ((Join) join2Input1).getOuterInputOperator();
    Assert.assertTrue(join1Input2 instanceof NlpEntityOperator);
    IOperator connectorOut1 = ((RegexMatcher) join1Input1).getInputOperator();
    Assert.assertTrue(connectorOut1 instanceof ConnectorOutputOperator);
    IOperator connectorOut2 = ((NlpEntityOperator) join1Input2).getInputOperator();
    Assert.assertTrue(connectorOut2 instanceof ConnectorOutputOperator);
    IOperator connectorOut3 = ((FuzzyTokenMatcher) join2Input2).getInputOperator();
    Assert.assertTrue(connectorOut3 instanceof ConnectorOutputOperator);
    HashSet<Integer> connectorIndices = new HashSet<>();
    connectorIndices.add(((ConnectorOutputOperator) connectorOut1).getOutputIndex());
    connectorIndices.add(((ConnectorOutputOperator) connectorOut2).getOutputIndex());
    connectorIndices.add(((ConnectorOutputOperator) connectorOut3).getOutputIndex());
    Assert.assertEquals(connectorIndices.size(), 3);
    OneToNBroadcastConnector connector1 = ((ConnectorOutputOperator) connectorOut1).getOwnerConnector();
    OneToNBroadcastConnector connector2 = ((ConnectorOutputOperator) connectorOut2).getOwnerConnector();
    OneToNBroadcastConnector connector3 = ((ConnectorOutputOperator) connectorOut3).getOwnerConnector();
    Assert.assertSame(connector1, connector2);
    Assert.assertSame(connector1, connector3);
    IOperator keywordSource = connector1.getInputOperator();
    Assert.assertTrue(keywordSource instanceof KeywordMatcherSourceOperator);
}

Example 3 with ISink

use of edu.uci.ics.textdb.api.dataflow.ISink in project textdb by TextDB.

the class LogicalPlanTest method testLogicalPlan1.

/*
     * Test a valid operator graph.
     * 
     * KeywordSource --> RegexMatcher --> TupleSink
     * 
     */
@Test
public void testLogicalPlan1() throws Exception {
    LogicalPlan logicalPlan = getLogicalPlan1();
    Plan queryPlan = logicalPlan.buildQueryPlan();
    ISink tupleSink = queryPlan.getRoot();
    Assert.assertTrue(tupleSink instanceof TupleSink);
    IOperator regexMatcher = ((TupleSink) tupleSink).getInputOperator();
    Assert.assertTrue(regexMatcher instanceof RegexMatcher);
    IOperator keywordSource = ((RegexMatcher) regexMatcher).getInputOperator();
    Assert.assertTrue(keywordSource instanceof KeywordMatcherSourceOperator);
}

Example 4 with ISink

use of edu.uci.ics.textdb.api.dataflow.ISink in project textdb by TextDB.

the class PlanTest method testGetRoot.

@Test
public void testGetRoot() {
    ISink rootReturned = plan.getRoot();
    Assert.assertSame(root, rootReturned);
}

Example 5 with ISink

use of edu.uci.ics.textdb.api.dataflow.ISink in project textdb by TextDB.

the class LogicalPlan method findSinkOperator.

/*
     * Finds the sink operator in the operator graph.
     * 
     * This function assumes that the graph is valid and there is only one sink in the graph.
     */
private ISink findSinkOperator(HashMap<String, IOperator> operatorObjectMap) throws PlanGenException {
    IOperator sinkOperator = adjacencyList.keySet().stream().filter(operator -> operatorPredicateMap.get(operator).getClass().toString().toLowerCase().contains("sink")).map(operator -> operatorObjectMap.get(operator)).findFirst().orElse(null);
    PlanGenUtils.planGenAssert(sinkOperator != null, "Error: sink operator doesn't exist.");
    PlanGenUtils.planGenAssert(sinkOperator instanceof ISink, "Error: sink operator's type doesn't match.");
    return (ISink) sinkOperator;
}