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Added transactional sql executor for Big Query via Java API
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...s/legend/engine/persistence/components/relational/bigquery/executor/BigQueryExecutor.java
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| // Copyright 2022 Goldman Sachs | ||
| // | ||
| // Licensed 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. | ||
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| package org.finos.legend.engine.persistence.components.relational.bigquery.executor; | ||
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| import com.google.cloud.bigquery.*; | ||
| import org.eclipse.collections.api.factory.Lists; | ||
| import org.finos.legend.engine.persistence.components.executor.Executor; | ||
| import org.finos.legend.engine.persistence.components.logicalplan.datasets.Dataset; | ||
| import org.finos.legend.engine.persistence.components.relational.SqlPlan; | ||
| import org.finos.legend.engine.persistence.components.relational.bigquery.BigQuerySink; | ||
| import org.finos.legend.engine.persistence.components.relational.sql.TabularData; | ||
| import org.finos.legend.engine.persistence.components.relational.sqldom.SqlGen; | ||
| import org.finos.legend.engine.persistence.components.relational.sqldom.schemaops.statements.DDLStatement; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.UUID; | ||
| import java.util.regex.Pattern; | ||
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| public class BigQueryExecutor implements Executor<SqlGen, TabularData, SqlPlan> | ||
| { | ||
| private final BigQuerySink bigQuerySink; | ||
| private final BigQueryHelper bigQueryHelper; | ||
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| public BigQueryExecutor(BigQuerySink bigQuerySink, BigQueryHelper bigQueryHelper) | ||
| { | ||
| this.bigQuerySink = bigQuerySink; | ||
| this.bigQueryHelper = bigQueryHelper; | ||
| } | ||
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| @Override | ||
| public void executePhysicalPlan(SqlPlan physicalPlan) | ||
| { | ||
| boolean containsDDLStatements = physicalPlan.ops().stream().anyMatch(DDLStatement.class::isInstance); | ||
| List<String> sqlList = physicalPlan.getSqlList(); | ||
| if(containsDDLStatements) { | ||
| for (String sql : sqlList) { | ||
| bigQueryHelper.executeQuery(sql); | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| public void executePhysicalPlan(SqlPlan physicalPlan, Map<String, String> placeholderKeyValues) | ||
| { | ||
| List<String> sqlList = physicalPlan.getSqlList(); | ||
| for (String sql : sqlList) | ||
| { | ||
| String enrichedSql = getEnrichedSql(placeholderKeyValues, sql); | ||
| bigQueryHelper.executeStatement(enrichedSql); | ||
| } | ||
| } | ||
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| @Override | ||
| public List<TabularData> executePhysicalPlanAndGetResults(SqlPlan physicalPlan) | ||
| { | ||
| List<TabularData> resultSetList = new ArrayList<>(); | ||
| for (String sql : physicalPlan.getSqlList()) | ||
| { | ||
| List<Map<String, Object>> queryResult = bigQueryHelper.executeQuery(sql); | ||
| if (!queryResult.isEmpty()) | ||
| { | ||
| resultSetList.add(new TabularData(queryResult)); | ||
| } | ||
| } | ||
| return resultSetList; | ||
| } | ||
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| @Override | ||
| public List<TabularData> executePhysicalPlanAndGetResults(SqlPlan physicalPlan, Map<String, String> placeholderKeyValues) | ||
| { | ||
| List<TabularData> resultSetList = new ArrayList<>(); | ||
| for (String sql : physicalPlan.getSqlList()) | ||
| { | ||
| String enrichedSql = getEnrichedSql(placeholderKeyValues, sql); | ||
| List<Map<String, Object>> queryResult = bigQueryHelper.executeQuery(enrichedSql); | ||
| if (!queryResult.isEmpty()) | ||
| { | ||
| resultSetList.add(new TabularData(queryResult)); | ||
| } | ||
| } | ||
| return resultSetList; | ||
| } | ||
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| @Override | ||
| public boolean datasetExists(Dataset dataset) | ||
| { | ||
| return bigQuerySink.datasetExistsFn().apply(this, bigQueryHelper, dataset); | ||
| } | ||
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| @Override | ||
| public void validateMainDatasetSchema(Dataset dataset) | ||
| { | ||
| bigQuerySink.validateMainDatasetSchemaFn().execute(this, bigQueryHelper, dataset); | ||
| } | ||
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| @Override | ||
| public Dataset constructDatasetFromDatabase(String tableName, String schemaName, String databaseName) | ||
| { | ||
| return bigQuerySink.constructDatasetFromDatabaseFn().execute(this, bigQueryHelper, tableName, schemaName, databaseName); | ||
| } | ||
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| @Override | ||
| public void begin() | ||
| { | ||
| bigQueryHelper.beginTransaction(); | ||
| } | ||
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| @Override | ||
| public void commit() | ||
| { | ||
| bigQueryHelper.commitTransaction(); | ||
| } | ||
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| @Override | ||
| public void revert() | ||
| { | ||
| bigQueryHelper.revertTransaction(); | ||
| } | ||
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| @Override | ||
| public void close() | ||
| { | ||
| bigQueryHelper.closeTransactionManager(); | ||
| } | ||
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| private String getEnrichedSql(Map<String, String> placeholderKeyValues, String sql) | ||
| { | ||
| String enrichedSql = sql; | ||
| for (Map.Entry<String, String> entry : placeholderKeyValues.entrySet()) | ||
| { | ||
| enrichedSql = enrichedSql.replaceAll(Pattern.quote(entry.getKey()), entry.getValue()); | ||
| } | ||
| return enrichedSql; | ||
| } | ||
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| } |
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