Examples with RecordField org.apache.nifi.repository.schema.RecordField used on opensource projects

Example 6 with RecordField

use of org.apache.nifi.repository.schema.RecordField in project nifi by apache.

the class ProvenanceEventSchema method buildSchemaV1.

private static RecordSchema buildSchemaV1(final boolean includeEventId) {
    final List<RecordField> fields = new ArrayList<>();
    if (includeEventId) {
        fields.add(RECORD_IDENTIFIER);
    }
    fields.add(EVENT_TYPE);
    fields.add(EVENT_TIME);
    fields.add(FLOWFILE_ENTRY_DATE);
    fields.add(EVENT_DURATION);
    fields.add(LINEAGE_START_DATE);
    fields.add(COMPONENT_ID);
    fields.add(COMPONENT_TYPE);
    fields.add(FLOWFILE_UUID);
    fields.add(EVENT_DETAILS);
    fields.add(PREVIOUS_ATTRIBUTES);
    fields.add(UPDATED_ATTRIBUTES);
    fields.add(CURRENT_CONTENT_CLAIM);
    fields.add(PREVIOUS_CONTENT_CLAIM);
    fields.add(SOURCE_QUEUE_IDENTIFIER);
    // EventType-Specific fields
    // for FORK, JOIN, CLONE, REPLAY events
    fields.add(PARENT_UUIDS);
    // for FORK, JOIN, CLONE, REPLAY events
    fields.add(CHILD_UUIDS);
    // for SEND/RECEIVE/FETCH events
    fields.add(TRANSIT_URI);
    // for SEND/RECEIVE events
    fields.add(SOURCE_SYSTEM_FLOWFILE_IDENTIFIER);
    // for ADD_INFO events
    fields.add(ALTERNATE_IDENTIFIER);
    // for ROUTE events
    fields.add(RELATIONSHIP);
    final RecordSchema schema = new RecordSchema(fields);
    return schema;
}

Example 7 with RecordField

use of org.apache.nifi.repository.schema.RecordField in project nifi by apache.

the class SchemaSwapDeserializer method getSwapSummary.

@Override
public SwapSummary getSwapSummary(final DataInputStream in, final String swapLocation, final ResourceClaimManager claimManager) throws IOException {
    final RecordSchema schema = RecordSchema.readFrom(in);
    final List<RecordField> summaryFields = schema.getField(SwapSchema.SWAP_SUMMARY).getSubFields();
    final RecordField summaryRecordField = new ComplexRecordField(SwapSchema.SWAP_SUMMARY, Repetition.EXACTLY_ONE, summaryFields);
    final RecordSchema summarySchema = new RecordSchema(Collections.singletonList(summaryRecordField));
    final Record summaryRecordParent = SchemaRecordReader.fromSchema(summarySchema).readRecord(in);
    final Record summaryRecord = (Record) summaryRecordParent.getFieldValue(SwapSchema.SWAP_SUMMARY);
    final SwapSummary swapSummary = SwapSummaryFieldMap.getSwapSummary(summaryRecord, claimManager);
    return swapSummary;
}

Example 8 with RecordField

use of org.apache.nifi.repository.schema.RecordField in project nifi by apache.

the class SchemaSwapSerializer method serializeFlowFiles.

@Override
public void serializeFlowFiles(final List<FlowFileRecord> toSwap, final FlowFileQueue queue, final String swapLocation, final OutputStream out) throws IOException {
    schema.writeTo(out);
    long contentSize = 0L;
    long maxFlowFileId = -1L;
    final List<ResourceClaim> resourceClaims = new ArrayList<>();
    for (final FlowFileRecord flowFile : toSwap) {
        contentSize += flowFile.getSize();
        if (flowFile.getId() > maxFlowFileId) {
            maxFlowFileId = flowFile.getId();
        }
        final ContentClaim contentClaim = flowFile.getContentClaim();
        if (contentClaim != null) {
            resourceClaims.add(contentClaim.getResourceClaim());
        }
    }
    final QueueSize queueSize = new QueueSize(toSwap.size(), contentSize);
    final SwapSummary swapSummary = new StandardSwapSummary(queueSize, maxFlowFileId, resourceClaims);
    final Record summaryRecord = new SwapSummaryFieldMap(swapSummary, queue.getIdentifier(), SwapSchema.SWAP_SUMMARY_SCHEMA_V1);
    final List<Record> flowFileRecords = toSwap.stream().map(flowFile -> new FlowFileRecordFieldMap(flowFile, flowFileSchema)).collect(Collectors.toList());
    // Create a simple record to hold the summary and the flowfile contents
    final RecordField summaryField = new SimpleRecordField(SwapSchema.SWAP_SUMMARY, FieldType.COMPLEX, Repetition.EXACTLY_ONE);
    final RecordField contentsField = new ComplexRecordField(SwapSchema.FLOWFILE_CONTENTS, Repetition.ZERO_OR_MORE, FlowFileSchema.FLOWFILE_SCHEMA_V2.getFields());
    final List<RecordField> fields = new ArrayList<>(2);
    fields.add(summaryField);
    fields.add(contentsField);
    final Map<RecordField, Object> swapFileMap = new LinkedHashMap<>();
    swapFileMap.put(summaryField, summaryRecord);
    swapFileMap.put(contentsField, flowFileRecords);
    final Record swapFileRecord = new FieldMapRecord(swapFileMap, new RecordSchema(fields));
    final SchemaRecordWriter writer = new SchemaRecordWriter();
    writer.writeRecord(swapFileRecord, out);
    out.flush();
}

Example 9 with RecordField

use of org.apache.nifi.repository.schema.RecordField in project nifi by apache.

the class TestSchemaRecordReaderWriter method createSchemaWriter.

/**
 * Creates a SchemaRecordWriter that uses a modified schema
 *
 * @param fieldModifier the callback for modifying the schema
 * @return a SchemaRecordWriter that uses the modified schema
 * @throws IOException if unable to create the writer
 */
private ByteArraySchemaRecordWriter createSchemaWriter(final Consumer<List<RecordField>> fieldModifier, final Map<RecordField, Object> fieldsToAdd) throws IOException {
    final TocWriter tocWriter = new StandardTocWriter(tocFile, false, false);
    // Create a schema that has the fields modified
    final RecordSchema schemaV1 = ProvenanceEventSchema.PROVENANCE_EVENT_SCHEMA_V1;
    final List<RecordField> fields = new ArrayList<>(schemaV1.getFields());
    fieldModifier.accept(fields);
    final RecordSchema recordSchema = new RecordSchema(fields);
    final RecordSchema contentClaimSchema = new RecordSchema(recordSchema.getField(EventFieldNames.CONTENT_CLAIM).getSubFields());
    final ByteArraySchemaRecordWriter writer = new ByteArraySchemaRecordWriter(journalFile, idGenerator, tocWriter, false, 0) {

        @Override
        public void writeHeader(long firstEventId, DataOutputStream out) throws IOException {
            final ByteArrayOutputStream baos = new ByteArrayOutputStream();
            recordSchema.writeTo(baos);
            out.writeInt(baos.size());
            baos.writeTo(out);
        }

        @Override
        protected Record createRecord(final ProvenanceEventRecord event, final long eventId) {
            final Map<RecordField, Object> values = new HashMap<>();
            final EventRecord eventRecord = new EventRecord(event, eventId, recordSchema, contentClaimSchema);
            for (final RecordField field : recordSchema.getFields()) {
                final Object value = eventRecord.getFieldValue(field);
                values.put(field, value);
            }
            values.putAll(fieldsToAdd);
            return new FieldMapRecord(values, recordSchema);
        }
    };
    return writer;
}

Example 10 with RecordField

use of org.apache.nifi.repository.schema.RecordField in project nifi by apache.

the class TestSchemaRecordReaderWriter method testFieldAddedToSchema.

@Test
public void testFieldAddedToSchema() throws IOException {
    final RecordField unitTestField = new SimpleRecordField("Unit Test Field", FieldType.STRING, Repetition.EXACTLY_ONE);
    final Consumer<List<RecordField>> schemaModifier = fields -> fields.add(unitTestField);
    final Map<RecordField, Object> toAdd = new HashMap<>();
    toAdd.put(unitTestField, "hello");
    try (final ByteArraySchemaRecordWriter writer = createSchemaWriter(schemaModifier, toAdd)) {
        writer.writeHeader(1L);
        writer.writeRecord(createEvent());
        writer.writeRecord(createEvent());
    }
    try (final InputStream in = new FileInputStream(journalFile);
        final TocReader tocReader = new StandardTocReader(tocFile);
        final RecordReader reader = createReader(in, journalFile.getName(), tocReader, 10000)) {
        for (int i = 0; i < 2; i++) {
            final StandardProvenanceEventRecord event = reader.nextRecord();
            assertNotNull(event);
            assertEquals("1234", event.getComponentId());
            assertEquals(ProvenanceEventType.RECEIVE, event.getEventType());
            assertNotNull(event.getUpdatedAttributes());
            assertFalse(event.getUpdatedAttributes().isEmpty());
        }
    }
}