Examples with ScanBasedSourceOperator edu.uci.ics.texera.dataflow.source.scan.ScanBasedSourceOperator used on opensource projects

Example 21 with ScanBasedSourceOperator

use of edu.uci.ics.texera.dataflow.source.scan.ScanBasedSourceOperator in project textdb by TextDB.

the class RegexMatcherTestHelper method getScanSourceResults.

public static List<Tuple> getScanSourceResults(String tableName, String regex, List<String> attributeNames, int limit, int offset) throws TexeraException {
    ScanBasedSourceOperator scanSource = new ScanBasedSourceOperator(new ScanSourcePredicate(tableName));
    RegexPredicate regexPredicate = new RegexPredicate(regex, attributeNames, RESULTS);
    RegexMatcher regexMatcher = new RegexMatcher(regexPredicate);
    regexMatcher.setLimit(limit);
    regexMatcher.setOffset(offset);
    regexMatcher.setInputOperator(scanSource);
    Tuple tuple;
    List<Tuple> results = new ArrayList<>();
    regexMatcher.open();
    while ((tuple = regexMatcher.getNextTuple()) != null) {
        results.add(tuple);
    }
    regexMatcher.close();
    return results;
}

Example 22 with ScanBasedSourceOperator

use of edu.uci.ics.texera.dataflow.source.scan.ScanBasedSourceOperator in project textdb by TextDB.

the class RegexSplitOperatorTest method computeRegexSplitResultsOnetoOne.

public static List<Tuple> computeRegexSplitResultsOnetoOne(String tableName, String splitAttrName, String splitRegex, RegexSplitPredicate.SplitType splitType) throws TexeraException {
    ScanBasedSourceOperator scanSource = new ScanBasedSourceOperator(new ScanSourcePredicate(tableName));
    RegexSplitOperator regexSplit = new RegexSplitOperator(new RegexSplitPredicate(RegexOutputType.ONE_TO_ONE, splitRegex, splitAttrName, splitType, RESULT_ATTR));
    regexSplit.setInputOperator(scanSource);
    List<Tuple> results = new ArrayList<>();
    regexSplit.open();
    Tuple tuple;
    while ((tuple = regexSplit.getNextTuple()) != null) {
        results.add(tuple);
    }
    regexSplit.close();
    return results;
}

Example 23 with ScanBasedSourceOperator

use of edu.uci.ics.texera.dataflow.source.scan.ScanBasedSourceOperator in project textdb by TextDB.

the class RegexSplitOperatorTest method test8.

/*
     * ID test: To test if each newly-split tuple's ID has conflict with the old tuple.
     */
@Test
public void test8() throws TexeraException {
    String splitRegex = "ana";
    String splitAttrName = TestConstantsRegexSplit.DESCRIPTION;
    List<Tuple> results = computeRegexSplitResultsOneToMany(REGEX_TABLE, splitAttrName, splitRegex, RegexSplitPredicate.SplitType.STANDALONE);
    ScanBasedSourceOperator scanSource = new ScanBasedSourceOperator(new ScanSourcePredicate(REGEX_TABLE));
    Tuple tupleTable;
    scanSource.open();
    while ((tupleTable = scanSource.getNextTuple()) != null) {
        for (Tuple tuple : results) {
            Assert.assertFalse(tuple.getField(SchemaConstants._ID).equals(tupleTable.getField(SchemaConstants._ID)));
        }
    }
    scanSource.close();
}

Example 24 with ScanBasedSourceOperator

use of edu.uci.ics.texera.dataflow.source.scan.ScanBasedSourceOperator in project textdb by TextDB.

the class RegexSplitOperatorTest method computeRegexSplitResultsOneToMany.

public static List<Tuple> computeRegexSplitResultsOneToMany(String tableName, String splitAttrName, String splitRegex, RegexSplitPredicate.SplitType splitType) throws TexeraException {
    ScanBasedSourceOperator scanSource = new ScanBasedSourceOperator(new ScanSourcePredicate(tableName));
    RegexSplitOperator regexSplit = new RegexSplitOperator(new RegexSplitPredicate(RegexOutputType.ONE_TO_MANY, splitRegex, splitAttrName, splitType, RESULT_ATTR));
    regexSplit.setInputOperator(scanSource);
    List<Tuple> results = new ArrayList<>();
    regexSplit.open();
    Tuple tuple;
    while ((tuple = regexSplit.getNextTuple()) != null) {
        results.add(tuple);
    }
    regexSplit.close();
    return results;
}