| /* |
| * 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.beam.sdk.io.snowflake.test; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.sql.SQLException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import net.snowflake.client.jdbc.SnowflakeSQLException; |
| import org.apache.beam.sdk.io.snowflake.data.SnowflakeTableSchema; |
| import org.apache.beam.sdk.io.snowflake.enums.CreateDisposition; |
| import org.apache.beam.sdk.io.snowflake.enums.WriteDisposition; |
| import org.apache.beam.sdk.io.snowflake.services.SnowflakeService; |
| import org.apache.beam.sdk.io.snowflake.services.SnowflakeServiceConfig; |
| |
| /** Fake implementation of {@link SnowflakeService} used in tests. */ |
| public class FakeSnowflakeServiceImpl implements SnowflakeService<SnowflakeServiceConfig> { |
| |
| @Override |
| public void write(SnowflakeServiceConfig config) throws Exception { |
| copyToTable(config); |
| } |
| |
| @Override |
| public String read(SnowflakeServiceConfig config) throws Exception { |
| return copyIntoStage(config); |
| } |
| |
| public String copyIntoStage(SnowflakeServiceConfig config) throws SQLException { |
| String table = config.getTable(); |
| String query = config.getQuery(); |
| |
| String stagingBucketDir = config.getStagingBucketDir(); |
| |
| if (table != null) { |
| writeToFile(stagingBucketDir, FakeSnowflakeDatabase.getElements(table)); |
| } |
| if (query != null) { |
| writeToFile(stagingBucketDir, FakeSnowflakeDatabase.runQuery(query)); |
| } |
| |
| return String.format("./%s/*", stagingBucketDir); |
| } |
| |
| public void copyToTable(SnowflakeServiceConfig config) throws SQLException { |
| List<String> filesList = config.getFilesList(); |
| String table = config.getTable(); |
| SnowflakeTableSchema tableSchema = config.getTableSchema(); |
| CreateDisposition createDisposition = config.getCreateDisposition(); |
| WriteDisposition writeDisposition = config.getWriteDisposition(); |
| |
| List<String> rows = new ArrayList<>(); |
| for (String file : filesList) { |
| rows.addAll(TestUtils.readGZIPFile(file.replace("'", ""))); |
| } |
| |
| prepareTableAccordingCreateDisposition(table, tableSchema, createDisposition); |
| prepareTableAccordingWriteDisposition(table, writeDisposition); |
| |
| FakeSnowflakeDatabase.createTableWithElements(table, rows); |
| } |
| |
| private void prepareTableAccordingCreateDisposition( |
| String table, SnowflakeTableSchema tableSchema, CreateDisposition createDisposition) |
| throws SQLException { |
| switch (createDisposition) { |
| case CREATE_NEVER: |
| if (!FakeSnowflakeDatabase.isTableExist(table)) { |
| throw new SnowflakeSQLException( |
| null, "SQL compilation error: Table does not exist", table, 0); |
| } |
| break; |
| case CREATE_IF_NEEDED: |
| if (FakeSnowflakeDatabase.isTableExist(table)) { |
| break; |
| } else if (tableSchema == null) { |
| throw new RuntimeException( |
| "The CREATE_IF_NEEDED disposition requires schema if table doesn't exists"); |
| } else { |
| FakeSnowflakeDatabase.createTable(table); |
| } |
| break; |
| } |
| } |
| |
| private void prepareTableAccordingWriteDisposition( |
| String table, WriteDisposition writeDisposition) throws SQLException { |
| switch (writeDisposition) { |
| case TRUNCATE: |
| FakeSnowflakeDatabase.truncateTable(table); |
| break; |
| case EMPTY: |
| if (!FakeSnowflakeDatabase.isTableEmpty(table)) { |
| throw new RuntimeException("Table is not empty. Aborting COPY with disposition EMPTY"); |
| } |
| break; |
| case APPEND: |
| |
| default: |
| break; |
| } |
| } |
| |
| private void writeToFile(String stagingBucketNameTmp, List<String> rows) { |
| Path filePath = Paths.get(String.format("./%s/table.csv.gz", stagingBucketNameTmp)); |
| try { |
| Files.createDirectories(filePath.getParent()); |
| Files.createFile(filePath); |
| Files.write(filePath, rows); |
| } catch (IOException e) { |
| throw new RuntimeException("Failed to create files", e); |
| } |
| } |
| } |