seatunnel-server/seatunnel-app/src/main/java/org/apache/seatunnel/app/thirdparty/datasource/impl/PostgresqlDataSourceConfigSwitcher.java

/*
 * 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.app.thirdparty.datasource.impl;

import org.apache.seatunnel.app.thirdparty.datasource.DataSourceConfigSwitcher;
import org.apache.seatunnel.common.utils.SeaTunnelException;
import org.apache.seatunnel.datasource.plugin.api.utils.JdbcUtils;

import com.google.auto.service.AutoService;

import java.util.List;
import java.util.Optional;

@AutoService(DataSourceConfigSwitcher.class)
public class PostgresqlDataSourceConfigSwitcher extends BaseJdbcDataSourceConfigSwitcher {

    public static final String CATALOG_NAME = "Postgres";

    public PostgresqlDataSourceConfigSwitcher() {}

    protected Optional<String> getCatalogName() {
        return Optional.of(CATALOG_NAME);
    }

    protected String tableFieldsToSql(List<String> tableFields, String database, String fullTable) {

        String[] split = fullTable.split("\\.");
        if (split.length != 2) {
            throw new SeaTunnelException(
                    "The tableName for postgres must be schemaName.tableName, but tableName is "
                            + fullTable);
        }

        String schemaName = split[0];
        String tableName = split[1];

        return generateSql(tableFields, database, schemaName, tableName);
    }

    protected String quoteIdentifier(String identifier) {
        return "\"" + identifier + "\"";
    }

    protected String replaceDatabaseNameInUrl(String url, String databaseName) {
        return JdbcUtils.replaceDatabase(url, databaseName);
    }

    @Override
    public String getDataSourceName() {
        return "JDBC-POSTGRES";
    }

    protected boolean isSupportDefaultSchema() {
        return true;
    }
}