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

Example 1 with RecordSchema

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

the class TestSchemaRecordReaderWriter method testFieldRemovedFromSchema.

@Test
public void testFieldRemovedFromSchema() throws IOException {
    final TocWriter tocWriter = new StandardTocWriter(tocFile, false, false);
    try {
        // Create a schema that has the fields modified
        final RecordSchema schemaV1 = ProvenanceEventSchema.PROVENANCE_EVENT_SCHEMA_V1;
        final List<RecordField> fields = new ArrayList<>(schemaV1.getFields());
        fields.remove(new SimpleRecordField(EventFieldNames.UPDATED_ATTRIBUTES, FieldType.STRING, Repetition.EXACTLY_ONE));
        fields.remove(new SimpleRecordField(EventFieldNames.PREVIOUS_ATTRIBUTES, FieldType.STRING, Repetition.EXACTLY_ONE));
        final RecordSchema recordSchema = new RecordSchema(fields);
        // Create a record writer whose schema does not contain updated attributes or previous attributes.
        // This means that we must also override the method that writes out attributes so that we are able
        // to avoid actually writing them out.
        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 RecordSchema contentClaimSchema = new RecordSchema(recordSchema.getField(EventFieldNames.CONTENT_CLAIM).getSubFields());
                return new EventRecord(event, eventId, recordSchema, contentClaimSchema);
            }
        };
        try {
            writer.writeHeader(1L);
            writer.writeRecord(createEvent());
            writer.writeRecord(createEvent());
        } finally {
            writer.close();
        }
    } finally {
        tocWriter.close();
    }
    // Read the records in and make sure that they have the info that we expect.
    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(ProvenanceEventType.RECEIVE, event.getEventType());
            // We will still have a Map<String, String> for updated attributes because the
            // Provenance Event Builder will create an empty map.
            assertNotNull(event.getUpdatedAttributes());
            assertTrue(event.getUpdatedAttributes().isEmpty());
        }
    }
}

Example 2 with RecordSchema

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

the class EventIdFirstSchemaRecordReader method readHeader.

@Override
@SuppressWarnings("unchecked")
protected synchronized void readHeader(final DataInputStream in, final int serializationVersion) throws IOException {
    verifySerializationVersion(serializationVersion);
    final int eventSchemaLength = in.readInt();
    final byte[] buffer = new byte[eventSchemaLength];
    StreamUtils.fillBuffer(in, buffer);
    try (final ByteArrayInputStream bais = new ByteArrayInputStream(buffer)) {
        schema = RecordSchema.readFrom(bais);
    }
    recordReader = SchemaRecordReader.fromSchema(schema);
    final int headerSchemaLength = in.readInt();
    final byte[] headerSchemaBuffer = new byte[headerSchemaLength];
    StreamUtils.fillBuffer(in, headerSchemaBuffer);
    final RecordSchema headerSchema;
    try (final ByteArrayInputStream bais = new ByteArrayInputStream(headerSchemaBuffer)) {
        headerSchema = RecordSchema.readFrom(bais);
    }
    final SchemaRecordReader headerReader = SchemaRecordReader.fromSchema(headerSchema);
    final Record headerRecord = headerReader.readRecord(in);
    componentIds = (List<String>) headerRecord.getFieldValue(EventIdFirstHeaderSchema.FieldNames.COMPONENT_IDS);
    componentTypes = (List<String>) headerRecord.getFieldValue(EventIdFirstHeaderSchema.FieldNames.COMPONENT_TYPES);
    queueIds = (List<String>) headerRecord.getFieldValue(EventIdFirstHeaderSchema.FieldNames.QUEUE_IDS);
    eventTypes = (List<String>) headerRecord.getFieldValue(EventIdFirstHeaderSchema.FieldNames.EVENT_TYPES);
    firstEventId = (Long) headerRecord.getFieldValue(EventIdFirstHeaderSchema.FieldNames.FIRST_EVENT_ID);
    systemTimeOffset = (Long) headerRecord.getFieldValue(EventIdFirstHeaderSchema.FieldNames.TIMESTAMP_OFFSET);
}

Example 3 with RecordSchema

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

the class EventIdFirstHeaderSchema method buildSchema.

private static RecordSchema buildSchema() {
    final List<RecordField> fields = new ArrayList<>();
    fields.add(new SimpleRecordField(FieldNames.FIRST_EVENT_ID, FieldType.LONG, Repetition.EXACTLY_ONE));
    fields.add(new SimpleRecordField(FieldNames.TIMESTAMP_OFFSET, FieldType.LONG, Repetition.EXACTLY_ONE));
    fields.add(new SimpleRecordField(FieldNames.COMPONENT_IDS, FieldType.STRING, Repetition.ZERO_OR_MORE));
    fields.add(new SimpleRecordField(FieldNames.COMPONENT_TYPES, FieldType.STRING, Repetition.ZERO_OR_MORE));
    fields.add(new SimpleRecordField(FieldNames.QUEUE_IDS, FieldType.STRING, Repetition.ZERO_OR_MORE));
    fields.add(new SimpleRecordField(FieldNames.EVENT_TYPES, FieldType.STRING, Repetition.ZERO_OR_MORE));
    return new RecordSchema(fields);
}

Example 4 with RecordSchema

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

the class LookupTableEventSchema method buildSchemaV1.

private static RecordSchema buildSchemaV1(final boolean includeEventId) {
    final List<RecordField> fields = new ArrayList<>();
    if (includeEventId) {
        fields.add(RECORD_IDENTIFIER_OFFSET);
    }
    fields.add(EVENT_TYPE_ORDINAL);
    fields.add(EVENT_TIME_OFFSET);
    fields.add(FLOWFILE_ENTRY_DATE_OFFSET);
    fields.add(EVENT_DURATION);
    fields.add(LINEAGE_START_DATE_OFFSET);
    fields.add(COMPONENT_ID);
    fields.add(COMPONENT_TYPE);
    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_ID);
    // 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 5 with RecordSchema

use of org.apache.nifi.repository.schema.RecordSchema 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;
}