flink-doris-connector/src/main/java/org/apache/doris/flink/tools/cdc/CdcTools.java

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// 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
//
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package org.apache.doris.flink.tools.cdc;


import org.apache.doris.flink.tools.cdc.mysql.MysqlDatabaseSync;
import org.apache.doris.flink.tools.cdc.oracle.OracleDatabaseSync;
import org.apache.doris.flink.tools.cdc.postgres.PostgresDatabaseSync;
import org.apache.doris.flink.tools.cdc.sqlserver.SqlServerDatabaseSync;
import org.apache.flink.api.java.utils.MultipleParameterTool;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.util.StringUtils;

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * cdc sync tools
 */
public class CdcTools {
    private static final String MYSQL_SYNC_DATABASE = "mysql-sync-database";
    private static final String ORACLE_SYNC_DATABASE = "oracle-sync-database";
    private static final String POSTGRES_SYNC_DATABASE = "postgres-sync-database";
    private static final String SQLSERVER_SYNC_DATABASE = "sqlserver-sync-database";
    private static final List<String> EMPTY_KEYS = Arrays.asList("password");

    public static void main(String[] args) throws Exception {
        String operation = args[0].toLowerCase();
        String[] opArgs = Arrays.copyOfRange(args, 1, args.length);
        System.out.println();
        switch (operation) {
            case MYSQL_SYNC_DATABASE:
                createMySQLSyncDatabase(opArgs);
                break;
            case ORACLE_SYNC_DATABASE:
                createOracleSyncDatabase(opArgs);
                break;
            case POSTGRES_SYNC_DATABASE:
                createPostgresSyncDatabase(opArgs);
                break;
            case SQLSERVER_SYNC_DATABASE:
                createSqlServerSyncDatabase(opArgs);
                break;
            default:
                System.out.println("Unknown operation " + operation);
                System.exit(1);
        }
    }

    private static void createMySQLSyncDatabase(String[] opArgs) throws Exception {
        MultipleParameterTool params = MultipleParameterTool.fromArgs(opArgs);
        Map<String, String> mysqlMap = getConfigMap(params, "mysql-conf");
        Configuration mysqlConfig = Configuration.fromMap(mysqlMap);
        DatabaseSync databaseSync = new MysqlDatabaseSync();
        syncDatabase(params, databaseSync, mysqlConfig, "MySQL");
    }

    private static void createOracleSyncDatabase(String[] opArgs) throws Exception {
        MultipleParameterTool params = MultipleParameterTool.fromArgs(opArgs);
        Map<String, String> oracleMap = getConfigMap(params, "oracle-conf");
        Configuration oracleConfig = Configuration.fromMap(oracleMap);
        DatabaseSync databaseSync = new OracleDatabaseSync();
        syncDatabase(params, databaseSync, oracleConfig, "Oracle");
    }

    private static void createPostgresSyncDatabase(String[] opArgs) throws Exception {
        MultipleParameterTool params = MultipleParameterTool.fromArgs(opArgs);
        Map<String, String> postgresMap = getConfigMap(params, "postgres-conf");
        Configuration postgresConfig = Configuration.fromMap(postgresMap);
        DatabaseSync databaseSync = new PostgresDatabaseSync();
        syncDatabase(params, databaseSync, postgresConfig, "Postgres");
    }

    private static void createSqlServerSyncDatabase(String[] opArgs) throws Exception {
        MultipleParameterTool params = MultipleParameterTool.fromArgs(opArgs);
        Map<String, String> postgresMap = getConfigMap(params, "sqlserver-conf");
        Configuration postgresConfig = Configuration.fromMap(postgresMap);
        DatabaseSync databaseSync = new SqlServerDatabaseSync();
        syncDatabase(params, databaseSync, postgresConfig, "SqlServer");
    }

    private static void syncDatabase(MultipleParameterTool params, DatabaseSync databaseSync, Configuration config, String type) throws Exception {
        String jobName = params.get("job-name");
        String database = params.get("database");
        String tablePrefix = params.get("table-prefix");
        String tableSuffix = params.get("table-suffix");
        String includingTables = params.get("including-tables");
        String excludingTables = params.get("excluding-tables");
        String multiToOneOrigin = params.get("multi-to-one-origin");
        String multiToOneTarget = params.get("multi-to-one-target");
        boolean createTableOnly = params.has("create-table-only");
        boolean ignoreDefaultValue = params.has("ignore-default-value");
        boolean useNewSchemaChange = params.has("use-new-schema-change");

        Map<String, String> sinkMap = getConfigMap(params, "sink-conf");
        Map<String, String> tableMap = getConfigMap(params, "table-conf");
        Configuration sinkConfig = Configuration.fromMap(sinkMap);

        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        databaseSync.create(env, database, config, tablePrefix, tableSuffix, includingTables, excludingTables,multiToOneOrigin,multiToOneTarget, ignoreDefaultValue, sinkConfig, tableMap, createTableOnly, useNewSchemaChange);
        databaseSync.build();
        if(StringUtils.isNullOrWhitespaceOnly(jobName)){
            jobName = String.format("%s-Doris Sync Database: %s", type, config.getString("database-name","db"));
        }
        env.execute(jobName);
    }

    private static Map<String, String> getConfigMap(MultipleParameterTool params, String key) {
        if (!params.has(key)) {
            return null;
        }

        Map<String, String> map = new HashMap<>();
        for (String param : params.getMultiParameter(key)) {
            String[] kv = param.split("=", 2);
            if (kv.length == 2) {
                map.put(kv[0], kv[1]);
                continue;
            }else if(kv.length == 1 && EMPTY_KEYS.contains(kv[0])){
                map.put(kv[0], "");
                continue;
            }

            System.err.println(
                    "Invalid " + key + " " + param + ".\n");
            return null;
        }
        return map;
    }
}