Examples with WriteOperation io.cdap.cdap.api.lineage.field.WriteOperation used on opensource projects

Example 41 with WriteOperation

use of io.cdap.cdap.api.lineage.field.WriteOperation in project cdap by caskdata.

the class FieldLineageInfo method computeIncomingSummaryHelper.

/**
 * Helper method to compute the incoming summary
 *
 * @param currentOperation the operation being processed. Since we are processing incoming this operation is on the
 * left side if graph is imagined in horizontal orientation or this operation is the input to the to
 * previousOperation
 * @param previousOperation the previous operation which is processed and reside on right to the current operation if
 * the graph is imagined to be in horizontal orientation.
 * @param operationEndPointMap a map that contains the operation name to the final endpoint field it will generate,
 * this is used to track the path we already computed to ensure we do not do the same computation again
 */
private Set<EndPointField> computeIncomingSummaryHelper(Operation currentOperation, Operation previousOperation, Map<String, Set<EndPointField>> operationEndPointMap) {
    if (currentOperation.getType() == OperationType.READ) {
        // if current operation is of type READ, previous operation must be of type TRANSFORM or WRITE
        // get only the input fields from the previous operations for which the origin is current READ operation
        Set<InputField> inputFields = new HashSet<>();
        if (OperationType.WRITE == previousOperation.getType()) {
            WriteOperation previousWrite = (WriteOperation) previousOperation;
            inputFields = new HashSet<>(previousWrite.getInputs());
        } else if (OperationType.TRANSFORM == previousOperation.getType()) {
            TransformOperation previousTransform = (TransformOperation) previousOperation;
            inputFields = new HashSet<>(previousTransform.getInputs());
        }
        Set<EndPointField> sourceEndPointFields = new HashSet<>();
        // for all the input fields of the previous operation if the origin was current operation (remember we are
        // traversing backward)
        ReadOperation read = (ReadOperation) currentOperation;
        EndPoint source = read.getSource();
        for (InputField inputField : inputFields) {
            if (inputField.getOrigin().equals(currentOperation.getName())) {
                sourceEndPointFields.add(new EndPointField(source, inputField.getName()));
            }
        }
        // reached the end of graph unwind the recursive calls
        return sourceEndPointFields;
    }
    Set<EndPointField> relatedSources = new HashSet<>();
    // for transform we traverse backward in graph further through the inputs of the transform
    if (currentOperation.getType() == OperationType.TRANSFORM) {
        TransformOperation transform = (TransformOperation) currentOperation;
        // optimization to avoid repeating work if there are input fields with the same origin
        Set<String> transformOrigins = transform.getInputs().stream().map(InputField::getOrigin).collect(Collectors.toSet());
        for (String transformOrigin : transformOrigins) {
            if (operationEndPointMap.containsKey(transformOrigin)) {
                relatedSources.addAll(operationEndPointMap.get(transformOrigin));
            } else {
                relatedSources.addAll(computeIncomingSummaryHelper(operationsMap.get(transformOrigin), currentOperation, operationEndPointMap));
            }
        }
        operationEndPointMap.put(currentOperation.getName(), relatedSources);
    }
    return relatedSources;
}

Example 42 with WriteOperation

use of io.cdap.cdap.api.lineage.field.WriteOperation in project cdap by caskdata.

the class FieldLineageInfo method computeIncomingSummary.

private Map<EndPointField, Set<EndPointField>> computeIncomingSummary() {
    if (writeOperations == null) {
        computeAndValidateFieldLineageInfo(this.operations);
    }
    Map<String, Set<EndPointField>> operationEndPointMap = new HashMap<>();
    Map<EndPointField, Set<EndPointField>> summary = new HashMap<>();
    for (WriteOperation write : writeOperations) {
        List<InputField> inputs = write.getInputs();
        for (InputField input : inputs) {
            EndPointField dest = new EndPointField(write.getDestination(), input.getName());
            Set<EndPointField> fields = summary.computeIfAbsent(dest, k -> new HashSet<>());
            if (operationEndPointMap.containsKey(input.getOrigin())) {
                fields.addAll(operationEndPointMap.get(input.getOrigin()));
            } else {
                // handle a special case for read -> write
                // in this case, the write operation has to be one to one relation with the fields in the read operation,
                // since a write operation can only take a list of input fields that come from the previous stage
                Operation origin = operationsMap.get(input.getOrigin());
                if (origin.getType() == OperationType.READ) {
                    fields.add(new EndPointField(((ReadOperation) origin).getSource(), input.getName()));
                    continue;
                }
                fields.addAll(computeIncomingSummaryHelper(origin, write, operationEndPointMap));
            }
        }
    }
    for (TransformOperation transform : dropTransforms) {
        for (InputField input : transform.getInputs()) {
            Operation previous = operationsMap.get(input.getOrigin());
            // drop transforms uses a common NULL endpoint as key
            Set<EndPointField> endPointFields = summary.computeIfAbsent(NULL_EPF, k -> new HashSet<>());
            if (operationEndPointMap.containsKey(input.getOrigin())) {
                endPointFields.addAll(new HashSet<>(operationEndPointMap.get(input.getOrigin())));
                continue;
            }
            endPointFields.addAll(computeIncomingSummaryHelper(previous, transform, operationEndPointMap));
        }
    }
    return summary;
}

Example 43 with WriteOperation

use of io.cdap.cdap.api.lineage.field.WriteOperation in project cdap by caskdata.

the class FieldLineageInfo method getIncomingOperationsForField.

/**
 * <p>Get the subset of operations that were responsible for computing the specified field of
 * a specified destination.</p>
 * <p>For example if the operation are as follow</p>
 * <pre>
 * pRead: personFile -> (offset, body)
 * parse: body -> (id, name, address)
 * cRead: codeFile -> id
 * codeGen: (parse.id, cRead.id) -> id
 * sWrite: (codeGen.id, parse.name, parse.address) -> secureStore
 * iWrite: (parse.id, parse.name, parse.address) -> insecureStore
 * </pre>
 * <p>If the destination field is 'id' field of insecureStore then the result set will contain the operations iWrite,
 * parse, pRead.</p>
 * <p>If the destination field is 'id' field of secureStore then the result set will contain the operations sWrite,
 * codeGen, parse, pRead, cRead.</p>
 *
 * @param destinationField the EndPointField for which the operations need to find out
 * @return the subset of operations
 */
Set<Operation> getIncomingOperationsForField(EndPointField destinationField) {
    if (writeOperations == null) {
        computeAndValidateFieldLineageInfo(this.operations);
    }
    Set<Operation> visitedOperations = new HashSet<>();
    for (WriteOperation write : writeOperations) {
        // if the write operation destination was not the dataset to which the destinationField belongs to
        if (!write.getDestination().equals(destinationField.getEndPoint())) {
            continue;
        }
        Set<InputField> filteredInputs = write.getInputs().stream().filter(input -> input.getName().equals(destinationField.getField())).collect(Collectors.toSet());
        for (InputField input : filteredInputs) {
            // mark this write operation as visited
            visitedOperations.add(write);
            // traverse backward in the graph by looking up the origin of this input field which is the operation
            // which computed this destinationField
            getIncomingOperationsForFieldHelper(operationsMap.get(input.getOrigin()), visitedOperations);
        }
    }
    return visitedOperations;
}

Example 44 with WriteOperation

use of io.cdap.cdap.api.lineage.field.WriteOperation in project cdap by caskdata.

the class FieldLineageInfo method containsInputField.

/**
 * Checks whether the given field is used in the next operations or not
 *
 * @param nextOperation the next operation which should either be a {@link TransformOperation} or {@link
 * WriteOperation}
 * @param inputField the field whose usage needs to be checked
 * @return true if the field is used in the nextOperation
 */
private boolean containsInputField(Operation nextOperation, InputField inputField) {
    Set<InputField> inputFields = new HashSet<>();
    if (OperationType.WRITE == nextOperation.getType()) {
        WriteOperation nextWrite = (WriteOperation) nextOperation;
        inputFields = new HashSet<>(nextWrite.getInputs());
    } else if (OperationType.TRANSFORM == nextOperation.getType()) {
        TransformOperation nextTransform = (TransformOperation) nextOperation;
        inputFields = new HashSet<>(nextTransform.getInputs());
    }
    // if the next operation inputFields does contains the given fieldName return true
    return inputFields.contains(inputField);
}

Example 45 with WriteOperation

use of io.cdap.cdap.api.lineage.field.WriteOperation in project cdap by caskdata.

the class FieldLineageInfoTest method testMultiSourceSingleDestinationWithoutMerge.

@Test
public void testMultiSourceSingleDestinationWithoutMerge() {
    // pRead: personFile -> (offset, body)
    // parse: body -> (id, name, address)
    // cRead: codeFile -> id
    // codeGen: (parse.id, cRead.id) -> id
    // sWrite: (codeGen.id, parse.name, parse.address) -> secureStore
    // iWrite: (parse.id, parse.name, parse.address) -> insecureStore
    EndPoint pEndPoint = EndPoint.of("ns", "personFile");
    EndPoint cEndPoint = EndPoint.of("ns", "codeFile");
    EndPoint sEndPoint = EndPoint.of("ns", "secureStore");
    EndPoint iEndPoint = EndPoint.of("ns", "insecureStore");
    ReadOperation pRead = new ReadOperation("pRead", "Reading from person file", pEndPoint, "offset", "body");
    ReadOperation cRead = new ReadOperation("cRead", "Reading from code file", cEndPoint, "id");
    TransformOperation parse = new TransformOperation("parse", "parsing body", Collections.singletonList(InputField.of("pRead", "body")), "id", "name", "address");
    TransformOperation codeGen = new TransformOperation("codeGen", "Generate secure code", Arrays.asList(InputField.of("parse", "id"), InputField.of("cRead", "id")), "id");
    WriteOperation sWrite = new WriteOperation("sWrite", "writing secure store", sEndPoint, Arrays.asList(InputField.of("codeGen", "id"), InputField.of("parse", "name"), InputField.of("parse", "address")));
    WriteOperation iWrite = new WriteOperation("iWrite", "writing insecure store", iEndPoint, Arrays.asList(InputField.of("parse", "id"), InputField.of("parse", "name"), InputField.of("parse", "address")));
    List<Operation> operations = new ArrayList<>();
    operations.add(pRead);
    operations.add(cRead);
    operations.add(parse);
    operations.add(codeGen);
    operations.add(sWrite);
    operations.add(iWrite);
    FieldLineageInfo fllInfo = new FieldLineageInfo(operations);
    Map<EndPoint, Set<String>> destinationFields = fllInfo.getDestinationFields();
    Assert.assertEquals(new HashSet<>(Arrays.asList("id", "name", "address")), destinationFields.get(sEndPoint));
    Assert.assertEquals(new HashSet<>(Arrays.asList("id", "name", "address")), destinationFields.get(iEndPoint));
    Assert.assertNull(destinationFields.get(pEndPoint));
    Map<EndPointField, Set<EndPointField>> incomingSummary = fllInfo.getIncomingSummary();
    Assert.assertEquals(6, incomingSummary.size());
    EndPointField expected = new EndPointField(pEndPoint, "body");
    Assert.assertEquals(1, incomingSummary.get(new EndPointField(iEndPoint, "id")).size());
    Assert.assertEquals(expected, incomingSummary.get(new EndPointField(iEndPoint, "id")).iterator().next());
    Assert.assertEquals(1, incomingSummary.get(new EndPointField(iEndPoint, "name")).size());
    Assert.assertEquals(expected, incomingSummary.get(new EndPointField(iEndPoint, "name")).iterator().next());
    Assert.assertEquals(1, incomingSummary.get(new EndPointField(iEndPoint, "address")).size());
    Assert.assertEquals(expected, incomingSummary.get(new EndPointField(iEndPoint, "address")).iterator().next());
    // name and address from secure endpoint also depends on the body field of pEndPoint
    Assert.assertEquals(1, incomingSummary.get(new EndPointField(sEndPoint, "name")).size());
    Assert.assertEquals(expected, incomingSummary.get(new EndPointField(sEndPoint, "name")).iterator().next());
    Assert.assertEquals(1, incomingSummary.get(new EndPointField(sEndPoint, "address")).size());
    Assert.assertEquals(expected, incomingSummary.get(new EndPointField(sEndPoint, "address")).iterator().next());
    // id of secure endpoint depends on both body field of pEndPoint and id field of cEndPoint
    Set<EndPointField> expectedSet = new HashSet<>();
    expectedSet.add(new EndPointField(pEndPoint, "body"));
    expectedSet.add(new EndPointField(cEndPoint, "id"));
    Assert.assertEquals(expectedSet, incomingSummary.get(new EndPointField(sEndPoint, "id")));
    Map<EndPointField, Set<EndPointField>> outgoingSummary = fllInfo.getOutgoingSummary();
    // outgoing summary will not contain offset but only body from pEndPoint and id from cEndPoint
    Assert.assertEquals(2, outgoingSummary.size());
    expectedSet = new HashSet<>();
    expectedSet.add(new EndPointField(iEndPoint, "id"));
    expectedSet.add(new EndPointField(iEndPoint, "name"));
    expectedSet.add(new EndPointField(iEndPoint, "address"));
    expectedSet.add(new EndPointField(sEndPoint, "id"));
    expectedSet.add(new EndPointField(sEndPoint, "name"));
    expectedSet.add(new EndPointField(sEndPoint, "address"));
    // body affects all fields from both secure and insecure endpoints
    Assert.assertEquals(expectedSet, outgoingSummary.get(new EndPointField(pEndPoint, "body")));
    expectedSet.clear();
    expectedSet.add(new EndPointField(sEndPoint, "id"));
    // id field of cEndPoint only affects id field of secure endpoint
    Assert.assertEquals(expectedSet, outgoingSummary.get(new EndPointField(cEndPoint, "id")));
    // Test incoming operations from all destination fields
    Set<Operation> inComingOperations = fllInfo.getIncomingOperationsForField(new EndPointField(iEndPoint, "id"));
    Set<Operation> expectedOperations = new HashSet<>();
    expectedOperations.add(iWrite);
    expectedOperations.add(parse);
    expectedOperations.add(pRead);
    Assert.assertEquals(expectedOperations, inComingOperations);
    inComingOperations = fllInfo.getIncomingOperationsForField(new EndPointField(iEndPoint, "name"));
    expectedOperations = new HashSet<>();
    expectedOperations.add(iWrite);
    expectedOperations.add(parse);
    expectedOperations.add(pRead);
    Assert.assertEquals(new FieldLineageInfo(expectedOperations), new FieldLineageInfo(inComingOperations));
    inComingOperations = fllInfo.getIncomingOperationsForField(new EndPointField(iEndPoint, "address"));
    expectedOperations = new HashSet<>();
    expectedOperations.add(iWrite);
    expectedOperations.add(parse);
    expectedOperations.add(pRead);
    Assert.assertEquals(expectedOperations, inComingOperations);
    inComingOperations = fllInfo.getIncomingOperationsForField(new EndPointField(sEndPoint, "id"));
    expectedOperations = new HashSet<>();
    expectedOperations.add(sWrite);
    expectedOperations.add(codeGen);
    expectedOperations.add(cRead);
    expectedOperations.add(parse);
    expectedOperations.add(pRead);
    Assert.assertEquals(expectedOperations, inComingOperations);
    inComingOperations = fllInfo.getIncomingOperationsForField(new EndPointField(sEndPoint, "name"));
    expectedOperations = new HashSet<>();
    expectedOperations.add(sWrite);
    expectedOperations.add(parse);
    expectedOperations.add(pRead);
    Assert.assertEquals(expectedOperations, inComingOperations);
    inComingOperations = fllInfo.getIncomingOperationsForField(new EndPointField(sEndPoint, "address"));
    expectedOperations = new HashSet<>();
    expectedOperations.add(sWrite);
    expectedOperations.add(parse);
    expectedOperations.add(pRead);
    Assert.assertEquals(expectedOperations, inComingOperations);
    // test outgoing operations for all source fields
    Set<Operation> outgoingOperations = fllInfo.getOutgoingOperationsForField(new EndPointField(pEndPoint, "offset"));
    expectedOperations = new HashSet<>();
    expectedOperations.add(pRead);
    Assert.assertEquals(expectedOperations, outgoingOperations);
    outgoingOperations = fllInfo.getOutgoingOperationsForField(new EndPointField(pEndPoint, "body"));
    expectedOperations = new HashSet<>();
    expectedOperations.add(sWrite);
    expectedOperations.add(iWrite);
    expectedOperations.add(codeGen);
    expectedOperations.add(parse);
    expectedOperations.add(pRead);
    Assert.assertEquals(expectedOperations, outgoingOperations);
    outgoingOperations = fllInfo.getOutgoingOperationsForField(new EndPointField(cEndPoint, "id"));
    expectedOperations = new HashSet<>();
    expectedOperations.add(sWrite);
    expectedOperations.add(codeGen);
    expectedOperations.add(cRead);
    Assert.assertEquals(expectedOperations, outgoingOperations);
}