| /* |
| * 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.flink.connector.jdbc.databases.postgres.catalog; |
| |
| import org.apache.flink.annotation.Internal; |
| import org.apache.flink.util.StringUtils; |
| |
| import java.util.Objects; |
| |
| import static org.apache.flink.util.Preconditions.checkArgument; |
| |
| /** |
| * Table path of PostgresSQL in Flink. Can be of formats "table_name" or "schema_name.table_name". |
| * When it's "table_name", the schema name defaults to "public". |
| */ |
| @Internal |
| public class PostgresTablePath { |
| |
| private static final String DEFAULT_POSTGRES_SCHEMA_NAME = "public"; |
| |
| private final String pgSchemaName; |
| private final String pgTableName; |
| |
| public PostgresTablePath(String pgSchemaName, String pgTableName) { |
| checkArgument( |
| !StringUtils.isNullOrWhitespaceOnly(pgSchemaName), |
| "Schema name is not valid. Null or empty is not allowed"); |
| checkArgument( |
| !StringUtils.isNullOrWhitespaceOnly(pgTableName), |
| "Table name is not valid. Null or empty is not allowed"); |
| |
| this.pgSchemaName = pgSchemaName; |
| this.pgTableName = pgTableName; |
| } |
| |
| public static PostgresTablePath fromFlinkTableName(String flinkTableName) { |
| if (flinkTableName.contains(".")) { |
| String[] path = flinkTableName.split("\\."); |
| |
| checkArgument( |
| path != null && path.length == 2, |
| String.format( |
| "Table name '%s' is not valid. The parsed length is %d", |
| flinkTableName, path.length)); |
| |
| return new PostgresTablePath(path[0], path[1]); |
| } else { |
| return new PostgresTablePath(getDefaultSchemaName(), flinkTableName); |
| } |
| } |
| |
| public static String toFlinkTableName(String schema, String table) { |
| return new PostgresTablePath(schema, table).getFullPath(); |
| } |
| |
| public String getFullPath() { |
| return String.format("%s.%s", pgSchemaName, pgTableName); |
| } |
| |
| public String getPgTableName() { |
| return pgTableName; |
| } |
| |
| public String getPgSchemaName() { |
| return pgSchemaName; |
| } |
| |
| protected static String getDefaultSchemaName() { |
| return DEFAULT_POSTGRES_SCHEMA_NAME; |
| } |
| |
| @Override |
| public String toString() { |
| return getFullPath(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| |
| PostgresTablePath that = (PostgresTablePath) o; |
| return Objects.equals(pgSchemaName, that.pgSchemaName) |
| && Objects.equals(pgTableName, that.pgTableName); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(pgSchemaName, pgTableName); |
| } |
| } |