Examples with Attribute edu.uci.ics.textdb.api.schema.Attribute used on opensource projects

Example 81 with Attribute

use of edu.uci.ics.textdb.api.schema.Attribute in project textdb by TextDB.

the class DictionaryMatcherTest method testMatchingWithLimit.

public void testMatchingWithLimit() throws Exception {
    ArrayList<String> word = new ArrayList<String>(Arrays.asList("angry"));
    Dictionary dictionary = new Dictionary(word);
    Attribute[] schemaAttributes = new Attribute[TestConstants.ATTRIBUTES_PEOPLE.length + 1];
    for (int count = 0; count < schemaAttributes.length - 1; count++) {
        schemaAttributes[count] = TestConstants.ATTRIBUTES_PEOPLE[count];
    }
    schemaAttributes[schemaAttributes.length - 1] = RESULTS_ATTRIBUTE;
    Span span1 = new Span("description", 5, 10, "angry", "Angry", 1);
    Span span2 = new Span("description", 6, 11, "angry", "Angry", 1);
    Span span3 = new Span("description", 40, 45, "angry", "Angry", 8);
    Span span4 = new Span("description", 6, 11, "angry", "angry", 1);
    List<Span> list1 = new ArrayList<>();
    list1.add(span1);
    IField[] fields1 = { new StringField("bruce"), new StringField("john Lee"), new IntegerField(46), new DoubleField(5.50), new DateField(new SimpleDateFormat("MM-dd-yyyy").parse("01-14-1970")), new TextField("Tall Angry"), new ListField<>(list1) };
    List<Span> list2 = new ArrayList<>();
    list2.add(span2);
    IField[] fields2 = { new StringField("brad lie angelina"), new StringField("pitt"), new IntegerField(44), new DoubleField(6.10), new DateField(new SimpleDateFormat("MM-dd-yyyy").parse("01-12-1972")), new TextField("White Angry"), new ListField<>(list2) };
    List<Span> list3 = new ArrayList<>();
    list3.add(span3);
    IField[] fields3 = { new StringField("george lin lin"), new StringField("lin clooney"), new IntegerField(43), new DoubleField(6.06), new DateField(new SimpleDateFormat("MM-dd-yyyy").parse("01-13-1973")), new TextField("Lin Clooney is Short and lin clooney is Angry"), new ListField<>(list3) };
    List<Span> list4 = new ArrayList<>();
    list4.add(span4);
    IField[] fields4 = { new StringField("Mary brown"), new StringField("Lake Forest"), new IntegerField(42), new DoubleField(5.99), new DateField(new SimpleDateFormat("MM-dd-yyyy").parse("01-13-1974")), new TextField("Short angry"), new ListField<>(list4) };
    Tuple tuple1 = new Tuple(new Schema(schemaAttributes), fields1);
    Tuple tuple2 = new Tuple(new Schema(schemaAttributes), fields2);
    Tuple tuple3 = new Tuple(new Schema(schemaAttributes), fields3);
    Tuple tuple4 = new Tuple(new Schema(schemaAttributes), fields4);
    List<String> attributeNames = Arrays.asList(TestConstants.FIRST_NAME, TestConstants.LAST_NAME, TestConstants.DESCRIPTION);
    List<Tuple> expectedList = new ArrayList<>();
    List<Tuple> resultList = DictionaryMatcherTestHelper.getQueryResults(PEOPLE_TABLE, dictionary, attributeNames, KeywordMatchingType.PHRASE_INDEXBASED, 3, 0);
    expectedList.add(tuple1);
    expectedList.add(tuple2);
    expectedList.add(tuple3);
    expectedList.add(tuple4);
    Assert.assertEquals(expectedList.size(), 4);
    Assert.assertEquals(resultList.size(), 3);
    Assert.assertTrue(expectedList.containsAll(resultList));
}

Example 82 with Attribute

use of edu.uci.ics.textdb.api.schema.Attribute in project textdb by TextDB.

the class DictionaryMatcherTest method testSingleWordQueryInStringFieldUsingPhrase.

/**
     * Scenario: verifies GetNextTuple of DictionaryMatcher and multiple word
     * queries in String Field using PHRASEOPERATOR
     */
@Test
public void testSingleWordQueryInStringFieldUsingPhrase() throws Exception {
    ArrayList<String> names = new ArrayList<String>(Arrays.asList("john Lee", "bruce"));
    Dictionary dictionary = new Dictionary(names);
    // create a data tuple first
    List<Span> list1 = new ArrayList<Span>();
    List<Span> list2 = new ArrayList<Span>();
    Span span1 = new Span("lastName", 0, 8, "john Lee", "john Lee");
    Span span2 = new Span("firstName", 0, 5, "bruce", "bruce");
    list1.add(span1);
    list2.add(span2);
    Attribute[] schemaAttributes = new Attribute[TestConstants.ATTRIBUTES_PEOPLE.length + 1];
    for (int count = 0; count < schemaAttributes.length - 1; count++) {
        schemaAttributes[count] = TestConstants.ATTRIBUTES_PEOPLE[count];
    }
    schemaAttributes[schemaAttributes.length - 1] = RESULTS_ATTRIBUTE;
    IField[] fields1 = { new StringField("bruce"), new StringField("john Lee"), new IntegerField(46), new DoubleField(5.50), new DateField(new SimpleDateFormat("MM-dd-yyyy").parse("01-14-1970")), new TextField("Tall Angry"), new ListField<Span>(list1) };
    Tuple tuple1 = new Tuple(new Schema(schemaAttributes), fields1);
    IField[] fields2 = { new StringField("bruce"), new StringField("john Lee"), new IntegerField(46), new DoubleField(5.50), new DateField(new SimpleDateFormat("MM-dd-yyyy").parse("01-14-1970")), new TextField("Tall Angry"), new ListField<Span>(list2) };
    Tuple tuple2 = new Tuple(new Schema(schemaAttributes), fields2);
    List<Tuple> expectedResults = new ArrayList<Tuple>();
    expectedResults.add(tuple1);
    expectedResults.add(tuple2);
    List<String> attributeNames = Arrays.asList(TestConstants.FIRST_NAME, TestConstants.LAST_NAME, TestConstants.DESCRIPTION);
    List<Tuple> returnedResults = DictionaryMatcherTestHelper.getQueryResults(PEOPLE_TABLE, dictionary, attributeNames, KeywordMatchingType.PHRASE_INDEXBASED);
    boolean contains = TestUtils.equals(expectedResults, returnedResults);
    Assert.assertTrue(contains);
}

Example 83 with Attribute

use of edu.uci.ics.textdb.api.schema.Attribute in project textdb by TextDB.

the class JoinDistancePredicate method joinTuples.

/**
     * This method is called by the Join operator to perform the join on the 
     * tuples passed.
     * 
     * @return New Tuple containing the result of join operation.
     */
@Override
public Tuple joinTuples(Tuple innerTuple, Tuple outerTuple, Schema outputSchema) throws Exception {
    List<Span> newJoinSpanList = new ArrayList<>();
    /*
	     * We expect the values of all fields to be the same for innerTuple and outerTuple.
	     * We only checks _ID field, and field to be joined, since they are crucial to join operator.
	     * For other fields, we use the value from innerTuple.
	     * check if the _ID fields are the same
	     */
    if (!compareField(innerTuple, outerTuple, SchemaConstants._ID)) {
        return null;
    }
    // check if the fields to be joined are the same
    if (!compareField(innerTuple, outerTuple, this.joinAttributeName)) {
        return null;
    }
    /*
	     * If either/both tuples have no span information, return null.
	     * Check using try/catch if both the tuples have span information.
	     * If not return null; so we can process next tuple.
	     */
    ListField<Span> spanFieldOfInnerTuple = innerTuple.getField(SchemaConstants.SPAN_LIST);
    ListField<Span> spanFieldOfOuterTuple = outerTuple.getField(SchemaConstants.SPAN_LIST);
    List<Span> innerSpanList = null;
    List<Span> outerSpanList = null;
    // ListField
    if (spanFieldOfInnerTuple.getClass().equals(ListField.class)) {
        innerSpanList = spanFieldOfInnerTuple.getValue();
    }
    if (spanFieldOfOuterTuple.getClass().equals(ListField.class)) {
        outerSpanList = spanFieldOfOuterTuple.getValue();
    }
    Iterator<Span> outerSpanIter = outerSpanList.iterator();
    // the ones specified in the JoinPredicate during "sort merge"?)
    while (outerSpanIter.hasNext()) {
        Span outerSpan = outerSpanIter.next();
        // If not return null.
        if (!outerSpan.getAttributeName().equals(this.joinAttributeName)) {
            continue;
        }
        Iterator<Span> innerSpanIter = innerSpanList.iterator();
        while (innerSpanIter.hasNext()) {
            Span innerSpan = innerSpanIter.next();
            if (!innerSpan.getAttributeName().equals(this.joinAttributeName)) {
                continue;
            }
            Integer threshold = this.getThreshold();
            if (Math.abs(outerSpan.getStart() - innerSpan.getStart()) <= threshold && Math.abs(outerSpan.getEnd() - innerSpan.getEnd()) <= threshold) {
                Integer newSpanStartIndex = Math.min(innerSpan.getStart(), outerSpan.getStart());
                Integer newSpanEndIndex = Math.max(innerSpan.getEnd(), outerSpan.getEnd());
                String attributeName = this.joinAttributeName;
                String fieldValue = (String) innerTuple.getField(attributeName).getValue();
                String newFieldValue = fieldValue.substring(newSpanStartIndex, newSpanEndIndex);
                String spanKey = outerSpan.getKey() + "_" + innerSpan.getKey();
                Span newSpan = new Span(attributeName, newSpanStartIndex, newSpanEndIndex, spanKey, newFieldValue);
                newJoinSpanList.add(newSpan);
            }
        }
    }
    if (newJoinSpanList.isEmpty()) {
        return null;
    }
    // create output fields based on innerTuple's value
    List<Attribute> outputAttrList = outputSchema.getAttributes();
    List<IField> outputFields = outputAttrList.stream().filter(attr -> !attr.equals(SchemaConstants.SPAN_LIST_ATTRIBUTE)).map(attr -> attr.getAttributeName()).map(attributeName -> innerTuple.getField(attributeName, IField.class)).collect(Collectors.toList());
    outputFields.add(new ListField<>(newJoinSpanList));
    return new Tuple(outputSchema, outputFields.stream().toArray(IField[]::new));
}

Example 84 with Attribute

use of edu.uci.ics.textdb.api.schema.Attribute in project textdb by TextDB.

the class JoinDistancePredicate method generateIntersectionSchema.

/**
     * Create outputSchema, which is the intersection of innerOperator's schema and outerOperator's schema.
     * The attributes have to be exactly the same (name and type) to be intersected.
     * 
     * InnerOperator's attributes and outerOperator's attributes must:
     * both contain the attributes to be joined.
     * both contain "_ID" attribute.
     * both contain "spanList" attribute.
     * 
     * @return outputSchema
     */
private Schema generateIntersectionSchema(Schema innerOperatorSchema, Schema outerOperatorSchema) throws DataFlowException {
    List<Attribute> innerAttributes = innerOperatorSchema.getAttributes();
    List<Attribute> outerAttributes = outerOperatorSchema.getAttributes();
    List<Attribute> intersectionAttributes = innerAttributes.stream().filter(attr -> outerAttributes.contains(attr)).collect(Collectors.toList());
    Schema intersectionSchema = new Schema(intersectionAttributes.stream().toArray(Attribute[]::new));
    // check if output schema contain necessary attributes
    if (intersectionSchema.getAttributes().isEmpty()) {
        throw new DataFlowException("inner operator and outer operator don't share any common attributes");
    } else if (intersectionSchema.getAttribute(this.joinAttributeName) == null) {
        throw new DataFlowException("inner operator or outer operator doesn't contain join attribute");
    } else if (intersectionSchema.getAttribute(SchemaConstants._ID) == null) {
        throw new DataFlowException("inner operator or outer operator doesn't contain _ID attribute");
    } else if (intersectionSchema.getAttribute(SchemaConstants.SPAN_LIST) == null) {
        throw new DataFlowException("inner operator or outer operator doesn't contain spanList attribute");
    }
    // check if join attribute is TEXT or STRING
    AttributeType joinAttrType = intersectionSchema.getAttribute(this.joinAttributeName).getAttributeType();
    if (joinAttrType != AttributeType.TEXT && joinAttrType != AttributeType.STRING) {
        throw new DataFlowException(String.format("Join attribute %s must be either TEXT or STRING.", this.joinAttributeName));
    }
    return intersectionSchema;
}

Example 85 with Attribute

use of edu.uci.ics.textdb.api.schema.Attribute in project textdb by TextDB.

the class SchemaTest method testGetAttribute.

@Test
public void testGetAttribute() {
    Attribute expectedAttribute1 = new Attribute("sampleAttribute_1", AttributeType.STRING);
    Attribute expectedAttribute2 = new Attribute("sampleAttribute_2", AttributeType.STRING);
    Attribute retrievedAttribute1 = schema.getAttribute(attributeName1);
    Attribute retrievedAttribute2 = schema.getAttribute(attributeName2.toUpperCase());
    Assert.assertEquals(expectedAttribute1, retrievedAttribute1);
    Assert.assertEquals(expectedAttribute2, retrievedAttribute2);
}