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support tidb cdc
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sunxiaojian committed Aug 17, 2024
1 parent f0cefbe commit baa46ad
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22 changes: 3 additions & 19 deletions .idea/vcs.xml

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1 change: 1 addition & 0 deletions config/plugin_config
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Expand Up @@ -28,6 +28,7 @@ connector-cdc-mongodb
connector-cdc-sqlserver
connector-cdc-postgres
connector-cdc-oracle
connector-cdc-tidb
connector-clickhouse
connector-datahub
connector-dingtalk
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1 change: 1 addition & 0 deletions plugin-mapping.properties
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Expand Up @@ -103,6 +103,7 @@ seatunnel.source.Maxcompute = connector-maxcompute
seatunnel.sink.Maxcompute = connector-maxcompute
seatunnel.source.MySQL-CDC = connector-cdc-mysql
seatunnel.source.MongoDB-CDC = connector-cdc-mongodb
seatunnel.source.TiDB-CDC = connector-cdc-tidb
seatunnel.sink.S3Redshift = connector-s3-redshift
seatunnel.source.Web3j = connector-web3j
seatunnel.source.TDengine = connector-tdengine
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70 changes: 70 additions & 0 deletions seatunnel-connectors-v2/connector-cdc/connector-cdc-tidb/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You 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.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.apache.seatunnel</groupId>
<artifactId>connector-cdc</artifactId>
<version>${revision}</version>
</parent>

<artifactId>connector-cdc-tidb</artifactId>
<name>SeaTunnel : Connectors V2 : CDC : TIDB</name>

<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.seatunnel</groupId>
<artifactId>connector-cdc-base</artifactId>
<version>${project.version}</version>
<scope>compile</scope>
</dependency>

<dependency>
<groupId>org.apache.seatunnel</groupId>
<artifactId>connector-jdbc</artifactId>
<version>${project.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>

<dependencies>

<dependency>
<groupId>org.apache.seatunnel</groupId>
<artifactId>connector-cdc-base</artifactId>
</dependency>

<dependency>
<groupId>org.apache.seatunnel</groupId>
<artifactId>connector-jdbc</artifactId>
<version>${project.version}</version>
</dependency>

<dependency>
<groupId>org.tikv</groupId>
<artifactId>tikv-client-java</artifactId>
</dependency>
</dependencies>

</project>
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.seatunnel.connectors.seatunnel.cdc.tidb.source;

import org.apache.seatunnel.api.configuration.ReadonlyConfig;
import org.apache.seatunnel.api.source.Boundedness;
import org.apache.seatunnel.api.source.SeaTunnelSource;
import org.apache.seatunnel.api.source.SourceReader;
import org.apache.seatunnel.api.source.SourceSplitEnumerator;
import org.apache.seatunnel.api.source.SupportColumnProjection;
import org.apache.seatunnel.api.source.SupportParallelism;
import org.apache.seatunnel.api.table.catalog.CatalogTable;
import org.apache.seatunnel.api.table.type.SeaTunnelRow;
import org.apache.seatunnel.connectors.seatunnel.cdc.tidb.source.config.TiDBSourceConfig;
import org.apache.seatunnel.connectors.seatunnel.cdc.tidb.source.config.TiDBSourceOptions;
import org.apache.seatunnel.connectors.seatunnel.cdc.tidb.source.enumerator.TiDBSourceCheckpointState;
import org.apache.seatunnel.connectors.seatunnel.cdc.tidb.source.enumerator.TiDBSourceSplitEnumerator;
import org.apache.seatunnel.connectors.seatunnel.cdc.tidb.source.reader.TiDBSourceReader;
import org.apache.seatunnel.connectors.seatunnel.cdc.tidb.source.split.TiDBSourceSplit;

import java.util.Collections;
import java.util.List;

public class TiDBSource
implements SeaTunnelSource<SeaTunnelRow, TiDBSourceSplit, TiDBSourceCheckpointState>,
SupportParallelism,
SupportColumnProjection {

static final String IDENTIFIER = "TiDB-CDC";

private TiDBSourceConfig config;
private final CatalogTable catalogTable;

public TiDBSource(ReadonlyConfig config, CatalogTable catalogTable) {

this.config =
TiDBSourceConfig.builder()
.startupMode(config.get(TiDBSourceOptions.STARTUP_MODE))
.databaseName(config.get(TiDBSourceOptions.DATABASE_NAME))
.tableName(config.get(TiDBSourceOptions.TABLE_NAME))
.tiConfiguration(TiDBSourceOptions.getTiConfiguration(config))
.build();
this.catalogTable = catalogTable;
}

/**
* Returns a unique identifier among same factory interfaces.
*
* <p>For consistency, an identifier should be declared as one lower case word (e.g. {@code
* kafka}). If multiple factories exist for different versions, a version should be appended
* using "-" (e.g. {@code elasticsearch-7}).
*/
@Override
public String getPluginName() {
return IDENTIFIER;
}

/**
* Get the boundedness of this source.
*
* @return the boundedness of this source.
*/
@Override
public Boundedness getBoundedness() {
return Boundedness.UNBOUNDED;
}

/**
* Create source reader, used to produce data.
*
* @param context reader context.
* @return source reader.
* @throws Exception when create reader failed.
*/
@Override
public SourceReader<SeaTunnelRow, TiDBSourceSplit> createReader(SourceReader.Context context)
throws Exception {
return new TiDBSourceReader(context, config, catalogTable);
}

/**
* Create source split enumerator, used to generate splits. This method will be called only once
* when start a source.
*
* @param context enumerator context.
* @return source split enumerator.
* @throws Exception when create enumerator failed.
*/
@Override
public SourceSplitEnumerator<TiDBSourceSplit, TiDBSourceCheckpointState> createEnumerator(
SourceSplitEnumerator.Context<TiDBSourceSplit> context) throws Exception {
return new TiDBSourceSplitEnumerator(context, config);
}

/**
* Create source split enumerator, used to generate splits. This method will be called when
* restore from checkpoint.
*
* @param context enumerator context.
* @param checkpointState checkpoint state.
* @return source split enumerator.
* @throws Exception when create enumerator failed.
*/
@Override
public SourceSplitEnumerator<TiDBSourceSplit, TiDBSourceCheckpointState> restoreEnumerator(
SourceSplitEnumerator.Context<TiDBSourceSplit> context,
TiDBSourceCheckpointState checkpointState)
throws Exception {
return new TiDBSourceSplitEnumerator(context, config, checkpointState);
}

@Override
public List<CatalogTable> getProducedCatalogTables() {
return Collections.singletonList(catalogTable);
}
}
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.seatunnel.connectors.seatunnel.cdc.tidb.source;

import org.apache.seatunnel.api.configuration.ReadonlyConfig;
import org.apache.seatunnel.api.configuration.util.OptionRule;
import org.apache.seatunnel.api.source.SeaTunnelSource;
import org.apache.seatunnel.api.source.SourceSplit;
import org.apache.seatunnel.api.table.catalog.CatalogTable;
import org.apache.seatunnel.api.table.catalog.TablePath;
import org.apache.seatunnel.api.table.connector.TableSource;
import org.apache.seatunnel.api.table.factory.Factory;
import org.apache.seatunnel.api.table.factory.TableSourceFactory;
import org.apache.seatunnel.api.table.factory.TableSourceFactoryContext;
import org.apache.seatunnel.connectors.seatunnel.cdc.tidb.source.config.TiDBSourceOptions;
import org.apache.seatunnel.connectors.seatunnel.jdbc.catalog.tidb.TiDBCatalog;
import org.apache.seatunnel.connectors.seatunnel.jdbc.catalog.tidb.TiDBCatalogFactory;

import com.google.auto.service.AutoService;

import java.io.Serializable;

@AutoService(Factory.class)
public class TiDBSourceFactory implements TableSourceFactory {
/**
* Returns a unique identifier among same factory interfaces.
*
* <p>For consistency, an identifier should be declared as one lower case word (e.g. {@code
* kafka}). If multiple factories exist for different versions, a version should be appended
* using "-" (e.g. {@code elasticsearch-7}).
*/
@Override
public String factoryIdentifier() {
return TiDBSource.IDENTIFIER;
}

/**
* Returns the rule for options.
*
* <p>1. Used to verify whether the parameters configured by the user conform to the rules of
* the options;
*
* <p>2. Used for Web-UI to prompt user to configure option value;
*/
@Override
public OptionRule optionRule() {
return OptionRule.builder()
.required(
TiDBSourceOptions.DATABASE_NAME,
TiDBSourceOptions.TABLE_NAME,
TiDBSourceOptions.PD_ADDRESSES)
.optional(
TiDBSourceOptions.TIKV_BATCH_GET_CONCURRENCY,
TiDBSourceOptions.TIKV_BATCH_SCAN_CONCURRENCY,
TiDBSourceOptions.TIKV_GRPC_SCAN_TIMEOUT,
TiDBSourceOptions.TIKV_GRPC_TIMEOUT,
TiDBSourceOptions.STARTUP_MODE)
.build();
}

/**
* TODO: Implement SupportParallelism in the TableSourceFactory instead of the SeaTunnelSource,
* Then deprecated the method
*/
@Override
public Class<? extends SeaTunnelSource> getSourceClass() {
return TiDBSource.class;
}

@SuppressWarnings("unchecked")
@Override
public <T, SplitT extends SourceSplit, StateT extends Serializable>
TableSource<T, SplitT, StateT> createSource(TableSourceFactoryContext context) {
return () -> {
ReadonlyConfig config = context.getOptions();
TiDBCatalogFactory catalogFactory = new TiDBCatalogFactory();
// Build tidb catalog.
TiDBCatalog catalog =
(TiDBCatalog) catalogFactory.createCatalog(factoryIdentifier(), config);

TablePath tablePath =
TablePath.of(
config.get(TiDBSourceOptions.DATABASE_NAME),
config.get(TiDBSourceOptions.TABLE_NAME));
CatalogTable catalogTable = catalog.getTable(tablePath);
return (SeaTunnelSource<T, SplitT, StateT>)
new TiDBSource(context.getOptions(), catalogTable);
};
}
}
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.seatunnel.connectors.seatunnel.cdc.tidb.source.config;

import org.apache.seatunnel.connectors.cdc.base.option.StartupMode;

import org.tikv.common.TiConfiguration;

import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;

@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
@EqualsAndHashCode
public class TiDBSourceConfig {
private String databaseName;
private String tableName;
private StartupMode startupMode;
private TiConfiguration tiConfiguration;
}
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