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org.apache.flink.streaming.connectors.pulsar.table.PulsarDynamicTableFactory Maven / Gradle / Ivy
/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.streaming.connectors.pulsar.table;
import org.apache.flink.api.common.serialization.DeserializationSchema;
import org.apache.flink.api.common.serialization.SerializationSchema;
import org.apache.flink.configuration.ConfigOption;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.configuration.ReadableConfig;
import org.apache.flink.table.api.ValidationException;
import org.apache.flink.table.catalog.CatalogTable;
import org.apache.flink.table.catalog.ObjectIdentifier;
import org.apache.flink.table.connector.format.DecodingFormat;
import org.apache.flink.table.connector.format.EncodingFormat;
import org.apache.flink.table.connector.format.Format;
import org.apache.flink.table.connector.sink.DynamicTableSink;
import org.apache.flink.table.connector.source.DynamicTableSource;
import org.apache.flink.table.data.RowData;
import org.apache.flink.table.factories.DeserializationFormatFactory;
import org.apache.flink.table.factories.DynamicTableSinkFactory;
import org.apache.flink.table.factories.DynamicTableSourceFactory;
import org.apache.flink.table.factories.FactoryUtil;
import org.apache.flink.table.factories.SerializationFormatFactory;
import org.apache.flink.table.types.DataType;
import org.apache.flink.types.RowKind;
import org.apache.pulsar.common.naming.TopicName;
import javax.annotation.Nullable;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Optional;
import java.util.Properties;
import java.util.Set;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.ADMIN_URL;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.GENERIC;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.KEY_FIELDS;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.KEY_FIELDS_PREFIX;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.KEY_FORMAT;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.PARTITION_DISCOVERY_INTERVAL_MILLIS;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.PROPERTIES;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.PROPERTIES_PREFIX;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.SCAN_STARTUP_MODE;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.SCAN_STARTUP_SPECIFIC_OFFSETS;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.SCAN_STARTUP_SUB_NAME;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.SCAN_STARTUP_SUB_START_OFFSET;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.SERVICE_URL;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.SINK_MESSAGE_ROUTER;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.SINK_SEMANTIC;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.TOPIC;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.TOPIC_PATTERN;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.VALUE_FIELDS_INCLUDE;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.VALUE_FORMAT;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.createKeyFormatProjection;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.createValueFormatProjection;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.getMessageRouter;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.getPulsarProperties;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.validateSinkMessageRouter;
import static org.apache.flink.streaming.connectors.pulsar.table.PulsarTableOptions.validateTableSourceOptions;
import static org.apache.flink.table.factories.FactoryUtil.FORMAT;
import static org.apache.flink.table.factories.FactoryUtil.SINK_PARALLELISM;
/**
* Factory for creating configured instances of
* {@link PulsarDynamicTableFactory}.
*/
public class PulsarDynamicTableFactory implements
DynamicTableSourceFactory,
DynamicTableSinkFactory {
public static final String IDENTIFIER = "pulsar";
@Override
public DynamicTableSink createDynamicTableSink(Context context) {
FactoryUtil.TableFactoryHelper helper = FactoryUtil.createTableFactoryHelper(this, context);
ReadableConfig tableOptions = helper.getOptions();
List topics = generateTopic(context.getObjectIdentifier(), tableOptions);
if (topics != null && !topics.isEmpty()) {
((Configuration) tableOptions).set(TOPIC, Collections.singletonList(topics.get(0)));
}
String adminUrl = tableOptions.get(ADMIN_URL);
String serverUrl = tableOptions.get(SERVICE_URL);
final Optional>> keyEncodingFormat =
getKeyEncodingFormat(helper);
final EncodingFormat> valueEncodingFormat =
getValueEncodingFormat(helper);
// Validate the option data type.
helper.validateExcept(PROPERTIES_PREFIX, "type", "table-default-partitions", "default-database");
// Validate the option values.
PulsarTableOptions.validateTableSinkOptions(tableOptions);
Properties properties = getPulsarProperties(context.getCatalogTable().toProperties());
validatePKConstraints(context.getObjectIdentifier(), context.getCatalogTable(), valueEncodingFormat);
final DataType physicalDataType = context.getCatalogTable().getSchema().toPhysicalRowDataType();
final int[] keyProjection = createKeyFormatProjection(tableOptions, physicalDataType);
final int[] valueProjection = createValueFormatProjection(tableOptions, physicalDataType);
final String keyPrefix = tableOptions.getOptional(KEY_FIELDS_PREFIX).orElse(null);
return createPulsarTableSink(tableOptions, topics, adminUrl, serverUrl, keyEncodingFormat, valueEncodingFormat,
properties, physicalDataType, keyProjection, valueProjection, keyPrefix, context);
}
private PulsarDynamicTableSink createPulsarTableSink(ReadableConfig tableOptions, List topics,
String adminUrl, String serverUrl,
Optional>> keyEncodingFormat,
EncodingFormat> valueEncodingFormat,
Properties properties, DataType physicalDataType,
int[] keyProjection, int[] valueProjection,
String keyPrefix, Context context) {
final String formatType = tableOptions.getOptional(FORMAT).orElseGet(() -> tableOptions.get(VALUE_FORMAT));
final Integer parallelism = tableOptions.getOptional(SINK_PARALLELISM).orElse(null);
return new PulsarDynamicTableSink(
serverUrl,
adminUrl,
topics.get(0),
physicalDataType,
properties,
keyEncodingFormat.orElse(null),
valueEncodingFormat,
keyProjection,
valueProjection,
keyPrefix,
PulsarTableOptions.getSinkSemantic(tableOptions),
formatType,
false,
parallelism,
getMessageRouter(tableOptions, context.getClassLoader()).orElse(null));
}
@Override
public DynamicTableSource createDynamicTableSource(Context context) {
FactoryUtil.TableFactoryHelper helper = FactoryUtil.createTableFactoryHelper(this, context);
ReadableConfig tableOptions = helper.getOptions();
List topics = generateTopic(context.getObjectIdentifier(), tableOptions);
if (topics != null && !topics.isEmpty()) {
((Configuration) tableOptions).set(TOPIC, Collections.singletonList(topics.get(0)));
}
// Generic Flink Table can reference multiple topics with topicPattern
String topicPattern = tableOptions.getOptional(TOPIC_PATTERN).orElse(null);
if (topicPattern != null && !topicPattern.isEmpty()) {
((Configuration) tableOptions).set(TOPIC_PATTERN, topicPattern);
}
String adminUrl = tableOptions.get(ADMIN_URL);
String serviceUrl = tableOptions.get(SERVICE_URL);
final Optional>> keyDecodingFormat =
getKeyDecodingFormat(helper);
final DecodingFormat> valueDecodingFormat =
getValueDecodingFormat(helper);
// Validate the option data type.
helper.validateExcept(PROPERTIES_PREFIX, "type", "table-default-partitions", "default-database");
// Validate the option values.
validateTableSourceOptions(tableOptions);
validateSinkMessageRouter(tableOptions);
validatePKConstraints(context.getObjectIdentifier(), context.getCatalogTable(), valueDecodingFormat);
Properties properties = getPulsarProperties(context.getCatalogTable().toProperties());
final PulsarTableOptions.StartupOptions startupOptions = PulsarTableOptions
.getStartupOptions(tableOptions);
final DataType physicalDataType = context.getCatalogTable().getSchema().toPhysicalRowDataType();
final int[] keyProjection = createKeyFormatProjection(tableOptions, physicalDataType);
final int[] valueProjection = createValueFormatProjection(tableOptions, physicalDataType);
final String keyPrefix = tableOptions.getOptional(KEY_FIELDS_PREFIX).orElse(null);
return createPulsarTableSource(
physicalDataType,
keyDecodingFormat.orElse(null),
valueDecodingFormat,
keyProjection,
valueProjection,
keyPrefix,
topics,
topicPattern,
serviceUrl,
adminUrl,
properties,
startupOptions);
}
@Override
public String factoryIdentifier() {
return IDENTIFIER;
}
@Override
public Set> requiredOptions() {
final Set> options = new HashSet<>();
options.add(SERVICE_URL);
options.add(ADMIN_URL);
return options;
}
@Override
public Set> optionalOptions() {
final Set> options = new HashSet<>();
options.add(FactoryUtil.FORMAT);
options.add(KEY_FORMAT);
options.add(KEY_FIELDS);
options.add(KEY_FIELDS_PREFIX);
options.add(VALUE_FORMAT);
options.add(VALUE_FIELDS_INCLUDE);
options.add(TOPIC);
options.add(TOPIC_PATTERN);
options.add(SCAN_STARTUP_MODE);
options.add(SCAN_STARTUP_SPECIFIC_OFFSETS);
options.add(SCAN_STARTUP_SUB_NAME);
options.add(SCAN_STARTUP_SUB_START_OFFSET);
options.add(GENERIC);
options.add(PARTITION_DISCOVERY_INTERVAL_MILLIS);
options.add(SINK_SEMANTIC);
options.add(SINK_MESSAGE_ROUTER);
options.add(SINK_PARALLELISM);
options.add(PROPERTIES);
return options;
}
// --------------------------------------------------------------------------------------------
private List generateTopic(ObjectIdentifier table, ReadableConfig tableOptions) {
List topics = null;
if (tableOptions.get(GENERIC)) {
topics = tableOptions.getOptional(TOPIC).orElse(null);
} else {
String rawTopic = table.getDatabaseName() + "/" + table.getObjectName();
final String topic = TopicName.get(rawTopic).toString();
topics = Collections.singletonList(topic);
}
return topics;
}
private static Optional>> getKeyDecodingFormat(
FactoryUtil.TableFactoryHelper helper) {
final Optional>> keyDecodingFormat =
helper.discoverOptionalDecodingFormat(
DeserializationFormatFactory.class,
KEY_FORMAT);
keyDecodingFormat.ifPresent(format -> {
if (!format.getChangelogMode().containsOnly(RowKind.INSERT)) {
throw new ValidationException(
String.format(
"A key format should only deal with INSERT-only records. "
+ "But %s has a changelog mode of %s.",
helper.getOptions().get(KEY_FORMAT),
format.getChangelogMode()));
}
});
return keyDecodingFormat;
}
private static Optional>> getKeyEncodingFormat(
FactoryUtil.TableFactoryHelper helper) {
final Optional>> keyEncodingFormat =
helper.discoverOptionalEncodingFormat(
SerializationFormatFactory.class,
KEY_FORMAT);
keyEncodingFormat.ifPresent(format -> {
if (!format.getChangelogMode().containsOnly(RowKind.INSERT)) {
throw new ValidationException(
String.format(
"A key format should only deal with INSERT-only records. "
+ "But %s has a changelog mode of %s.",
helper.getOptions().get(KEY_FORMAT),
format.getChangelogMode()));
}
});
return keyEncodingFormat;
}
private static DecodingFormat> getValueDecodingFormat(
FactoryUtil.TableFactoryHelper helper) {
return helper.discoverOptionalDecodingFormat(DeserializationFormatFactory.class, FactoryUtil.FORMAT)
.orElseGet(() -> helper.discoverDecodingFormat(DeserializationFormatFactory.class, VALUE_FORMAT));
}
private static EncodingFormat> getValueEncodingFormat(
FactoryUtil.TableFactoryHelper helper) {
return helper.discoverOptionalEncodingFormat(SerializationFormatFactory.class, FactoryUtil.FORMAT)
.orElseGet(() -> helper.discoverEncodingFormat(SerializationFormatFactory.class, VALUE_FORMAT));
}
private static void validatePKConstraints(ObjectIdentifier tableName, CatalogTable catalogTable, Format format) {
if (catalogTable.getSchema().getPrimaryKey().isPresent() &&
format.getChangelogMode().containsOnly(RowKind.INSERT)) {
Configuration options = Configuration.fromMap(catalogTable.getOptions());
String formatName = options.getOptional(FactoryUtil.FORMAT).orElse(options.get(VALUE_FORMAT));
throw new ValidationException(String.format(
"The Pulsar table '%s' with '%s' format doesn't support defining PRIMARY KEY constraint" +
" on the table, because it can't guarantee the semantic of primary key.",
tableName.asSummaryString(),
formatName
));
}
}
// --------------------------------------------------------------------------------------------
protected PulsarDynamicTableSource createPulsarTableSource(
DataType physicalDataType,
@Nullable DecodingFormat> keyDecodingFormat,
DecodingFormat> valueDecodingFormat,
int[] keyProjection,
int[] valueProjection,
@Nullable String keyPrefix,
@Nullable List topics,
@Nullable String topicPattern,
String serviceUrl,
String adminUrl,
Properties properties,
PulsarTableOptions.StartupOptions startupOptions) {
return new PulsarDynamicTableSource(
physicalDataType,
keyDecodingFormat,
valueDecodingFormat,
keyProjection,
valueProjection,
keyPrefix,
topics,
topicPattern,
serviceUrl,
adminUrl,
properties,
startupOptions,
false);
}
}
