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Partial column update using StageMode ,alone with readme.md #128

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d64ce2b
StarRocks StageMode use
Cadenana Nov 19, 2024
3e28077
StarRocks StageMode use
Cadenana Nov 19, 2024
5f927b1
StarRocks StageMode use
Cadenana Nov 19, 2024
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10 changes: 0 additions & 10 deletions .idea/.gitignore
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48 changes: 24 additions & 24 deletions pom.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -497,9 +497,9 @@
<exclude>src/test/resources/sql/**</exclude>
<exclude>**/target/**</exclude>
<exclude>**/*.md</exclude>
<!-- <exclude>README.md</exclude>-->
<!-- <exclude>CODE_OF_CONDUCT.md</exclude>-->
<!-- <exclude>CONTRIBUTING.md</exclude>-->
<!-- <exclude>README.md</exclude>-->
<!-- <exclude>CODE_OF_CONDUCT.md</exclude>-->
<!-- <exclude>CONTRIBUTING.md</exclude>-->
<exclude>.github/**</exclude>
</excludes>
</configuration>
Expand Down Expand Up @@ -641,25 +641,25 @@
</repositories>

<distributionManagement>
<snapshotRepository>
<id>ossrh</id>
<url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
</snapshotRepository>
<repository>
<id>ossrh</id>
<url>https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/</url>
</repository>
</distributionManagement>
<reporting>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<configLocation>checkstyle.xml</configLocation>
</configuration>
</plugin>
</plugins>
</reporting>
<snapshotRepository>
<id>ossrh</id>
<url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
</snapshotRepository>
<repository>
<id>ossrh</id>
<url>https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/</url>
</repository>
</distributionManagement>
<reporting>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<configLocation>checkstyle.xml</configLocation>
</configuration>
</plugin>
</plugins>
</reporting>
</project>
237 changes: 237 additions & 0 deletions src/main/java/com/starrocks/connector/spark/catalog/SRCatalog.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,237 @@
// Copyright 2021-present StarRocks, Inc. All rights reserved.
//
// 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 com.starrocks.connector.spark.catalog;

import com.google.common.base.Preconditions;
import com.starrocks.connector.spark.exception.CatalogException;
import com.starrocks.connector.spark.sql.connect.StarRocksConnector;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.Serializable;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;

public class SRCatalog implements Serializable {
//supply someBase sql Method for BatchWrite StageMode

private static final long serialVersionUID = 1L;

private static final Logger LOG = LoggerFactory.getLogger(StarRocksCatalog.class);

private final String jdbcUrl;
private final String username;
private final String password;
public SRCatalog(String jdbcUrl, String username, String password) {
this.jdbcUrl = jdbcUrl;
this.username = username;
this.password = password;
}
public Connection getJdbcConnection() throws Exception {
Connection jdbcConnection = StarRocksConnector.createJdbcConnection(jdbcUrl, username, password);
return jdbcConnection;
}

public void executeDDLBySql(String ddlSql) throws Exception {
try (Connection connection = getJdbcConnection()) {
Statement statement = connection.createStatement();
statement.execute(ddlSql);
}
catch (Exception e) {
throw new IllegalStateException("execute ddl error, " + e.getMessage(), e);
}
}

//create db if not exists
public void createDatabase (String dbNames,boolean ignoreIfExists) {
if (StringUtils.isEmpty(dbNames)) {
throw new CatalogException("create db error");
}
try {
String buildSql = buildCreateDatabaseSql(dbNames, ignoreIfExists);
executeDDLBySql(buildSql);
}
catch (Exception e) {

throw new CatalogException("create db error", e);
}
LOG.info("successfully created database {}", dbNames);
}

public void createTable(SRTable table, boolean ignoreIfExists)
{
try {
String sql = buildCreateTableSql(table, ignoreIfExists);
executeDDLBySql(sql);
}
catch (Exception e) {
throw new CatalogException("create table error", e);
}
LOG.info("successfully created {}", table);
}

public void dropTable(String dbName,String tableName) {
String sql = String.format(
"SELECT TABLE_NAME FROM information_schema.tables WHERE TABLE_SCHEMA = '%s' AND TABLE_NAME = '%s'",
dbName, tableName
);
try (Connection connection = getJdbcConnection(); Statement stmt = connection.createStatement()) {
ResultSet resultSet = stmt.executeQuery(sql);
if (resultSet.next()) {
stmt.executeUpdate("DROP TABLE `" + dbName + "`.`" + tableName + "`");
}
}
catch (Exception e) {
throw new CatalogException("drop table error", e);
}
LOG.info("successfully dropped {}", tableName);
}

private String buildCreateDatabaseSql(String databaseName, boolean ignoreIfExists) {
StringBuilder sql = new StringBuilder("CREATE DATABASE ");
if (ignoreIfExists) {
sql.append("IF NOT EXISTS ");
}
sql.append(databaseName);
return sql.toString();
}

private String buildCreateTableSql(SRTable table, boolean ignoreIfExists) {
StringBuilder builder = new StringBuilder();
builder.append(
String.format(
"CREATE TABLE %s`%s`.`%s`",
ignoreIfExists ? "IF NOT EXISTS " : "",
table.getDatabaseName(),
table.getTableName()));
builder.append(" (\n");

List<String> tableKeys = table.getTableKeys().orElse(Collections.emptyList());

String columnsStmt =
table.getColumns().stream()
.map(column -> buildColumnStmt(column, tableKeys))
.collect(Collectors.joining(",\n"));

builder.append(columnsStmt);
builder.append("\n) ");

String keyModel;
switch (table.getTableType()) {
case DUPLICATE_KEYS:
keyModel = "DUPLICATE KEY";
break;
case PRIMARY_KEYS:
keyModel = "PRIMARY KEY";
break;
case UNIQUE_KEYS:
keyModel = "UNIQUE KEY";
break;
default:
throw new UnsupportedOperationException(
"Not support to build create table sql for table type " + table.getTableType());
}

builder.append(String.format("%s (%s)\n", keyModel, String.join(", ", tableKeys)));

if (!table.getDistributionKeys().isPresent()) {
Preconditions.checkArgument(
table.getTableType() == SRTable.TableType.DUPLICATE_KEYS,
"Can't build create table sql because there is no distribution keys");
} else {
String distributionKeys =
table.getDistributionKeys().get().stream()
.map(key -> "`" + key + "`")
.collect(Collectors.joining(", "));
builder.append(String.format("DISTRIBUTED BY HASH (%s)", distributionKeys));
}

if (table.getNumBuckets().isPresent()) {
builder.append(" BUCKETS ");
builder.append(table.getNumBuckets().get());
}

if (!table.getProperties().isEmpty()) {
builder.append("\nPROPERTIES (\n");
String properties =
table.getProperties().entrySet().stream()
.map(entry -> String.format("\"%s\" = \"%s\"", entry.getKey(), entry.getValue()))
.collect(Collectors.joining(",\n"));
builder.append(properties);
builder.append("\n)");
}

builder.append(";");
return builder.toString();
}

private String buildColumnStmt(SRColumn column, List<String> tableKeys) {
StringBuilder builder = new StringBuilder();
builder.append("`");
builder.append(column.getColumnName());
builder.append("` ");

builder.append(
getFullColumnType(
column.getDataType(), column.getColumnSize(), column.getDecimalDigits()));
builder.append(" ");

if (tableKeys.contains(column.getColumnName())) {
builder.append("NOT NULL");
} else {
builder.append(column.isNullable() ? "NULL" : "NOT NULL");
}

if (column.getDefaultValue().isPresent()) {
builder.append(String.format(" DEFAULT \"%s\"", column.getDefaultValue().get()));
}

if (column.getColumnComment().isPresent()) {
builder.append(String.format(" COMMENT \"%s\"", column.getColumnComment().get()));
}

return builder.toString();
}

private String getFullColumnType(
String type, Optional<Integer> columnSize, Optional<Integer> decimalDigits) {
String dataType = type.toUpperCase();
switch (dataType) {
case "DECIMAL":
Preconditions.checkArgument(
columnSize.isPresent(), "DECIMAL type must have column size");
Preconditions.checkArgument(
decimalDigits.isPresent(), "DECIMAL type must have decimal digits");
return String.format("DECIMAL(%d, %s)", columnSize.get(), decimalDigits.get());
case "CHAR":
case "VARCHAR":
Preconditions.checkArgument(
columnSize.isPresent(), type + " type must have column size");
return String.format("%s(%d)", dataType, columnSize.get());
default:
return dataType;
}
}
}
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