Examples with ScanSourcePredicate edu.uci.ics.textdb.exp.source.scan.ScanSourcePredicate used on opensource projects

Example 11 with ScanSourcePredicate

use of edu.uci.ics.textdb.exp.source.scan.ScanSourcePredicate in project textdb by TextDB.

the class ScanBasedSourceOperatorTest method testFlow.

@Test
public void testFlow() throws TextDBException, ParseException {
    List<Tuple> actualTuples = TestConstants.getSamplePeopleTuples();
    ScanBasedSourceOperator scanBasedSourceOperator = new ScanBasedSourceOperator(new ScanSourcePredicate(PEOPLE_TABLE));
    scanBasedSourceOperator.open();
    Tuple nextTuple = null;
    int numTuples = 0;
    List<Tuple> returnedTuples = new ArrayList<Tuple>();
    while ((nextTuple = scanBasedSourceOperator.getNextTuple()) != null) {
        returnedTuples.add(nextTuple);
        numTuples++;
    }
    Assert.assertEquals(actualTuples.size(), numTuples);
    boolean contains = TestUtils.equals(actualTuples, returnedTuples);
    Assert.assertTrue(contains);
    scanBasedSourceOperator.close();
}

Example 12 with ScanSourcePredicate

use of edu.uci.ics.textdb.exp.source.scan.ScanSourcePredicate in project textdb by TextDB.

the class OneToNBroadcastConnectorTest method testTwoOutputsWithProjection.

/*
     * This test connects Connector with Projection
     */
@Test
public void testTwoOutputsWithProjection() throws TextDBException {
    IOperator sourceOperator = new ScanBasedSourceOperator(new ScanSourcePredicate(PEOPLE_TABLE));
    List<String> projectionFields = Arrays.asList(TestConstants.DESCRIPTION);
    Schema projectionSchema = new Schema(TestConstants.DESCRIPTION_ATTR);
    IField[] fields1 = { new TextField("Tall Angry") };
    IField[] fields2 = { new TextField("Short Brown") };
    IField[] fields3 = { new TextField("White Angry") };
    IField[] fields4 = { new TextField("Lin Clooney is Short and lin clooney is Angry") };
    IField[] fields5 = { new TextField("Tall Fair") };
    IField[] fields6 = { new TextField("Short angry") };
    Tuple tuple1 = new Tuple(projectionSchema, fields1);
    Tuple tuple2 = new Tuple(projectionSchema, fields2);
    Tuple tuple3 = new Tuple(projectionSchema, fields3);
    Tuple tuple4 = new Tuple(projectionSchema, fields4);
    Tuple tuple5 = new Tuple(projectionSchema, fields5);
    Tuple tuple6 = new Tuple(projectionSchema, fields6);
    List<Tuple> expectedResults = Arrays.asList(tuple1, tuple2, tuple3, tuple4, tuple5, tuple6);
    ProjectionPredicate projectionPredicate = new ProjectionPredicate(projectionFields);
    ProjectionOperator projection1 = new ProjectionOperator(projectionPredicate);
    ProjectionOperator projection2 = new ProjectionOperator(projectionPredicate);
    OneToNBroadcastConnector connector = new OneToNBroadcastConnector(2);
    connector.setInputOperator(sourceOperator);
    projection1.setInputOperator(connector.getOutputOperator(0));
    projection2.setInputOperator(connector.getOutputOperator(1));
    projection1.open();
    List<Tuple> projection1Results = new ArrayList<>();
    Tuple nextTuple = null;
    while ((nextTuple = projection1.getNextTuple()) != null) {
        projection1Results.add(nextTuple);
    }
    projection1.close();
    projection2.open();
    List<Tuple> projection2Results = new ArrayList<>();
    nextTuple = null;
    while ((nextTuple = projection2.getNextTuple()) != null) {
        projection2Results.add(nextTuple);
    }
    projection2.close();
    Assert.assertTrue(TestUtils.equals(expectedResults, projection1Results));
    Assert.assertTrue(TestUtils.equals(expectedResults, projection2Results));
    Assert.assertTrue(TestUtils.equals(projection1Results, projection2Results));
}

Example 13 with ScanSourcePredicate

use of edu.uci.ics.textdb.exp.source.scan.ScanSourcePredicate in project textdb by TextDB.

the class ComparableMatcherTest method setDefaultMatcherConfig.

public void setDefaultMatcherConfig(ComparableMatcher comparableMatcher) throws TextDBException {
    // Perform the query
    ScanBasedSourceOperator sourceOperator = new ScanBasedSourceOperator(new ScanSourcePredicate(PEOPLE_TABLE));
    comparableMatcher.setInputOperator(sourceOperator);
    comparableMatcher.open();
    comparableMatcher.setLimit(Integer.MAX_VALUE);
    comparableMatcher.setOffset(0);
}

Example 14 with ScanSourcePredicate

use of edu.uci.ics.textdb.exp.source.scan.ScanSourcePredicate in project textdb by TextDB.

the class DictionaryMatcherTestHelper method getScanSourceResults.

/**
     * Get the results from a DictionaryMatcher with a ScanSource Operator 
     *   (which scans the table first and then feeds the data into the dictionary matcher)
     * 
     * @param tableName
     * @param dictionary
     * @param attributeNames
     * @param matchingType
     * @param limit
     * @param offset
     * @return
     * @throws TextDBException
     */
public static List<Tuple> getScanSourceResults(String tableName, Dictionary dictionary, List<String> attributeNames, KeywordMatchingType matchingType, int limit, int offset) throws TextDBException {
    RelationManager relationManager = RelationManager.getRelationManager();
    String luceneAnalyzerStr = relationManager.getTableAnalyzerString(tableName);
    ScanBasedSourceOperator scanSource = new ScanBasedSourceOperator(new ScanSourcePredicate(tableName));
    DictionaryPredicate dictiaonryPredicate = new DictionaryPredicate(dictionary, attributeNames, luceneAnalyzerStr, matchingType, RESULTS);
    DictionaryMatcher dictionaryMatcher = new DictionaryMatcher(dictiaonryPredicate);
    dictionaryMatcher.setLimit(limit);
    dictionaryMatcher.setOffset(offset);
    dictionaryMatcher.setInputOperator(scanSource);
    Tuple tuple;
    List<Tuple> results = new ArrayList<>();
    dictionaryMatcher.open();
    while ((tuple = dictionaryMatcher.getNextTuple()) != null) {
        results.add(tuple);
    }
    dictionaryMatcher.close();
    return results;
}

Example 15 with ScanSourcePredicate

use of edu.uci.ics.textdb.exp.source.scan.ScanSourcePredicate in project textdb by TextDB.

the class FuzzyTokenMatcherTestHelper method getScanSourceResults.

/*
     * Gets the query results by scanning the table and passing the data into a FuzzyTokenMatcher.
     */
public static List<Tuple> getScanSourceResults(String tableName, String query, double threshold, List<String> attributeNames, int limit, int offset) throws TextDBException {
    ScanBasedSourceOperator scanSource = new ScanBasedSourceOperator(new ScanSourcePredicate(tableName));
    FuzzyTokenPredicate fuzzyTokenPredicate = new FuzzyTokenPredicate(query, attributeNames, RelationManager.getRelationManager().getTableAnalyzerString(tableName), threshold, RESULTS);
    FuzzyTokenMatcher fuzzyTokenMatcher = new FuzzyTokenMatcher(fuzzyTokenPredicate);
    fuzzyTokenMatcher.setLimit(limit);
    fuzzyTokenMatcher.setOffset(offset);
    fuzzyTokenMatcher.setInputOperator(scanSource);
    Tuple tuple;
    List<Tuple> results = new ArrayList<>();
    fuzzyTokenMatcher.open();
    while ((tuple = fuzzyTokenMatcher.getNextTuple()) != null) {
        results.add(tuple);
    }
    fuzzyTokenMatcher.close();
    return results;
}