strongduanmu commented on a change in pull request #8150: URL: https://github.com/apache/shardingsphere/pull/8150#discussion_r522993977
########## File path: shardingsphere-features/shardingsphere-sharding/shardingsphere-sharding-route/src/main/java/org/apache/shardingsphere/sharding/route/engine/validator/dml/impl/ShardingSelectStatementValidator.java ########## @@ -0,0 +1,139 @@ +/* + * 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.shardingsphere.sharding.route.engine.validator.dml.impl; + +import org.apache.shardingsphere.infra.binder.statement.SQLStatementContext; +import org.apache.shardingsphere.infra.hint.HintManager; +import org.apache.shardingsphere.infra.metadata.schema.ShardingSphereSchema; +import org.apache.shardingsphere.infra.route.context.RouteContext; +import org.apache.shardingsphere.sharding.api.config.strategy.sharding.HintShardingStrategyConfiguration; +import org.apache.shardingsphere.sharding.route.engine.condition.ShardingCondition; +import org.apache.shardingsphere.sharding.route.engine.condition.ShardingConditions; +import org.apache.shardingsphere.sharding.route.engine.condition.engine.ShardingConditionEngine; +import org.apache.shardingsphere.sharding.route.engine.condition.engine.impl.WhereClauseShardingConditionEngine; +import org.apache.shardingsphere.sharding.route.engine.condition.value.ListShardingConditionValue; +import org.apache.shardingsphere.sharding.route.engine.condition.value.RangeShardingConditionValue; +import org.apache.shardingsphere.sharding.route.engine.condition.value.ShardingConditionValue; +import org.apache.shardingsphere.sharding.route.engine.validator.dml.ShardingDMLStatementValidator; +import org.apache.shardingsphere.sharding.rule.BindingTableRule; +import org.apache.shardingsphere.sharding.rule.ShardingRule; +import org.apache.shardingsphere.sharding.rule.TableRule; +import org.apache.shardingsphere.sql.parser.sql.common.statement.dml.DMLStatement; +import org.apache.shardingsphere.sql.parser.sql.common.statement.dml.SelectStatement; +import org.apache.shardingsphere.sql.parser.sql.common.util.SafeNumberOperationUtils; + +import com.google.common.base.Preconditions; + +import java.util.Collections; +import java.util.List; +import java.util.Optional; + +/** + * Sharding delete statement validator. + */ +public final class ShardingSelectStatementValidator extends ShardingDMLStatementValidator<SelectStatement> { + + @Override + public void preValidate(final ShardingRule shardingRule, final SQLStatementContext<SelectStatement> sqlStatementContext, + final List<Object> parameters, final ShardingSphereSchema schema) { + for (String each : sqlStatementContext.getTablesContext().getTableNames()) { + Optional<TableRule> tableRule = shardingRule.findTableRule(each); + if (tableRule.isPresent() && isRoutingByHint(shardingRule, tableRule.get()) + && !HintManager.getDatabaseShardingValues(each).isEmpty() && !HintManager.getTableShardingValues(each).isEmpty()) { + return; + } + } + ShardingConditions shardingConditions = createShardingConditions(sqlStatementContext, parameters, schema, shardingRule); + if (shardingConditions.getConditions().size() > 1) { + Preconditions.checkState(isSameShardingCondition(shardingRule, shardingConditions), "Sharding value must same with subquery."); + } + } + + private boolean isRoutingByHint(final ShardingRule shardingRule, final TableRule tableRule) { + return shardingRule.getDatabaseShardingStrategyConfiguration(tableRule) instanceof HintShardingStrategyConfiguration + && shardingRule.getTableShardingStrategyConfiguration(tableRule) instanceof HintShardingStrategyConfiguration; + } + + private boolean isSameShardingCondition(final ShardingRule shardingRule, final ShardingConditions shardingConditions) { + ShardingCondition example = shardingConditions.getConditions().remove(shardingConditions.getConditions().size() - 1); + for (ShardingCondition each : shardingConditions.getConditions()) { + if (!isSameShardingCondition(shardingRule, example, each)) { + return false; + } + } + return true; + } + + private boolean isSameShardingCondition(final ShardingRule shardingRule, final ShardingCondition shardingCondition1, final ShardingCondition shardingCondition2) { + if (shardingCondition1.getValues().size() != shardingCondition2.getValues().size()) { + return false; + } + for (int i = 0; i < shardingCondition1.getValues().size(); i++) { + ShardingConditionValue shardingConditionValue1 = shardingCondition1.getValues().get(i); + ShardingConditionValue shardingConditionValue2 = shardingCondition2.getValues().get(i); + if (!isSameShardingConditionValue(shardingRule, shardingConditionValue1, shardingConditionValue2)) { + return false; + } + } + return true; + } + + private boolean isSameShardingConditionValue(final ShardingRule shardingRule, final ShardingConditionValue shardingConditionValue1, final ShardingConditionValue shardingConditionValue2) { + return isSameLogicTable(shardingRule, shardingConditionValue1, shardingConditionValue2) && shardingConditionValue1.getColumnName().equals(shardingConditionValue2.getColumnName()) + && isSameValue(shardingConditionValue1, shardingConditionValue2); + } + + private boolean isSameLogicTable(final ShardingRule shardingRule, final ShardingConditionValue shardingValue1, final ShardingConditionValue shardingValue2) { + return shardingValue1.getTableName().equals(shardingValue2.getTableName()) || isBindingTable(shardingRule, shardingValue1, shardingValue2); + } + + private boolean isBindingTable(final ShardingRule shardingRule, final ShardingConditionValue shardingValue1, final ShardingConditionValue shardingValue2) { + Optional<BindingTableRule> bindingRule = shardingRule.findBindingTableRule(shardingValue1.getTableName()); + return bindingRule.isPresent() && bindingRule.get().hasLogicTable(shardingValue2.getTableName()); + } + + @SuppressWarnings({"rawtypes", "unchecked"}) + private boolean isSameValue(final ShardingConditionValue shardingConditionValue1, final ShardingConditionValue shardingConditionValue2) { + if (shardingConditionValue1 instanceof ListShardingConditionValue && shardingConditionValue2 instanceof ListShardingConditionValue) { + return SafeNumberOperationUtils.safeCollectionEquals( + ((ListShardingConditionValue) shardingConditionValue1).getValues(), ((ListShardingConditionValue) shardingConditionValue2).getValues()); + } else if (shardingConditionValue1 instanceof RangeShardingConditionValue && shardingConditionValue2 instanceof RangeShardingConditionValue) { + return SafeNumberOperationUtils.safeRangeEquals( + ((RangeShardingConditionValue) shardingConditionValue1).getValueRange(), ((RangeShardingConditionValue) shardingConditionValue2).getValueRange()); + } + return false; + } + + private ShardingConditions createShardingConditions(final SQLStatementContext<SelectStatement> sqlStatementContext, + final List<Object> parameters, final ShardingSphereSchema schema, final ShardingRule rule) { + List<ShardingCondition> shardingConditions; + if (sqlStatementContext.getSqlStatement() instanceof DMLStatement) { + ShardingConditionEngine shardingConditionEngine = new WhereClauseShardingConditionEngine(rule, schema); + shardingConditions = shardingConditionEngine.createShardingConditions(sqlStatementContext, parameters); + } else { + shardingConditions = Collections.emptyList(); + } + return new ShardingConditions(shardingConditions); + } + + @Override + public void postValidate(final SelectStatement sqlStatement, final RouteContext routeContext) { + Review comment: Please remove this blank line. ########## File path: shardingsphere-features/shardingsphere-sharding/shardingsphere-sharding-route/src/main/java/org/apache/shardingsphere/sharding/route/engine/validator/dml/impl/ShardingSelectStatementValidator.java ########## @@ -0,0 +1,139 @@ +/* + * 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.shardingsphere.sharding.route.engine.validator.dml.impl; + +import org.apache.shardingsphere.infra.binder.statement.SQLStatementContext; +import org.apache.shardingsphere.infra.hint.HintManager; +import org.apache.shardingsphere.infra.metadata.schema.ShardingSphereSchema; +import org.apache.shardingsphere.infra.route.context.RouteContext; +import org.apache.shardingsphere.sharding.api.config.strategy.sharding.HintShardingStrategyConfiguration; +import org.apache.shardingsphere.sharding.route.engine.condition.ShardingCondition; +import org.apache.shardingsphere.sharding.route.engine.condition.ShardingConditions; +import org.apache.shardingsphere.sharding.route.engine.condition.engine.ShardingConditionEngine; +import org.apache.shardingsphere.sharding.route.engine.condition.engine.impl.WhereClauseShardingConditionEngine; +import org.apache.shardingsphere.sharding.route.engine.condition.value.ListShardingConditionValue; +import org.apache.shardingsphere.sharding.route.engine.condition.value.RangeShardingConditionValue; +import org.apache.shardingsphere.sharding.route.engine.condition.value.ShardingConditionValue; +import org.apache.shardingsphere.sharding.route.engine.validator.dml.ShardingDMLStatementValidator; +import org.apache.shardingsphere.sharding.rule.BindingTableRule; +import org.apache.shardingsphere.sharding.rule.ShardingRule; +import org.apache.shardingsphere.sharding.rule.TableRule; +import org.apache.shardingsphere.sql.parser.sql.common.statement.dml.DMLStatement; +import org.apache.shardingsphere.sql.parser.sql.common.statement.dml.SelectStatement; +import org.apache.shardingsphere.sql.parser.sql.common.util.SafeNumberOperationUtils; + +import com.google.common.base.Preconditions; + +import java.util.Collections; +import java.util.List; +import java.util.Optional; + +/** + * Sharding delete statement validator. + */ +public final class ShardingSelectStatementValidator extends ShardingDMLStatementValidator<SelectStatement> { Review comment: `ShardingSelectStatementValidator` needs to be instantiated through `ShardingStatementValidatorFactory`, right? ########## File path: shardingsphere-features/shardingsphere-sharding/shardingsphere-sharding-route/src/main/java/org/apache/shardingsphere/sharding/route/engine/validator/dml/impl/ShardingSelectStatementValidator.java ########## @@ -0,0 +1,139 @@ +/* + * 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.shardingsphere.sharding.route.engine.validator.dml.impl; + +import org.apache.shardingsphere.infra.binder.statement.SQLStatementContext; +import org.apache.shardingsphere.infra.hint.HintManager; +import org.apache.shardingsphere.infra.metadata.schema.ShardingSphereSchema; +import org.apache.shardingsphere.infra.route.context.RouteContext; +import org.apache.shardingsphere.sharding.api.config.strategy.sharding.HintShardingStrategyConfiguration; +import org.apache.shardingsphere.sharding.route.engine.condition.ShardingCondition; +import org.apache.shardingsphere.sharding.route.engine.condition.ShardingConditions; +import org.apache.shardingsphere.sharding.route.engine.condition.engine.ShardingConditionEngine; +import org.apache.shardingsphere.sharding.route.engine.condition.engine.impl.WhereClauseShardingConditionEngine; +import org.apache.shardingsphere.sharding.route.engine.condition.value.ListShardingConditionValue; +import org.apache.shardingsphere.sharding.route.engine.condition.value.RangeShardingConditionValue; +import org.apache.shardingsphere.sharding.route.engine.condition.value.ShardingConditionValue; +import org.apache.shardingsphere.sharding.route.engine.validator.dml.ShardingDMLStatementValidator; +import org.apache.shardingsphere.sharding.rule.BindingTableRule; +import org.apache.shardingsphere.sharding.rule.ShardingRule; +import org.apache.shardingsphere.sharding.rule.TableRule; +import org.apache.shardingsphere.sql.parser.sql.common.statement.dml.DMLStatement; +import org.apache.shardingsphere.sql.parser.sql.common.statement.dml.SelectStatement; +import org.apache.shardingsphere.sql.parser.sql.common.util.SafeNumberOperationUtils; + +import com.google.common.base.Preconditions; + +import java.util.Collections; +import java.util.List; +import java.util.Optional; + +/** + * Sharding delete statement validator. + */ +public final class ShardingSelectStatementValidator extends ShardingDMLStatementValidator<SelectStatement> { + + @Override + public void preValidate(final ShardingRule shardingRule, final SQLStatementContext<SelectStatement> sqlStatementContext, + final List<Object> parameters, final ShardingSphereSchema schema) { + for (String each : sqlStatementContext.getTablesContext().getTableNames()) { + Optional<TableRule> tableRule = shardingRule.findTableRule(each); + if (tableRule.isPresent() && isRoutingByHint(shardingRule, tableRule.get()) + && !HintManager.getDatabaseShardingValues(each).isEmpty() && !HintManager.getTableShardingValues(each).isEmpty()) { + return; + } + } + ShardingConditions shardingConditions = createShardingConditions(sqlStatementContext, parameters, schema, shardingRule); + if (shardingConditions.getConditions().size() > 1) { + Preconditions.checkState(isSameShardingCondition(shardingRule, shardingConditions), "Sharding value must same with subquery."); + } + } + + private boolean isRoutingByHint(final ShardingRule shardingRule, final TableRule tableRule) { + return shardingRule.getDatabaseShardingStrategyConfiguration(tableRule) instanceof HintShardingStrategyConfiguration + && shardingRule.getTableShardingStrategyConfiguration(tableRule) instanceof HintShardingStrategyConfiguration; + } + + private boolean isSameShardingCondition(final ShardingRule shardingRule, final ShardingConditions shardingConditions) { + ShardingCondition example = shardingConditions.getConditions().remove(shardingConditions.getConditions().size() - 1); + for (ShardingCondition each : shardingConditions.getConditions()) { + if (!isSameShardingCondition(shardingRule, example, each)) { + return false; + } + } + return true; + } + + private boolean isSameShardingCondition(final ShardingRule shardingRule, final ShardingCondition shardingCondition1, final ShardingCondition shardingCondition2) { + if (shardingCondition1.getValues().size() != shardingCondition2.getValues().size()) { + return false; + } + for (int i = 0; i < shardingCondition1.getValues().size(); i++) { + ShardingConditionValue shardingConditionValue1 = shardingCondition1.getValues().get(i); + ShardingConditionValue shardingConditionValue2 = shardingCondition2.getValues().get(i); + if (!isSameShardingConditionValue(shardingRule, shardingConditionValue1, shardingConditionValue2)) { + return false; + } + } + return true; + } + + private boolean isSameShardingConditionValue(final ShardingRule shardingRule, final ShardingConditionValue shardingConditionValue1, final ShardingConditionValue shardingConditionValue2) { + return isSameLogicTable(shardingRule, shardingConditionValue1, shardingConditionValue2) && shardingConditionValue1.getColumnName().equals(shardingConditionValue2.getColumnName()) + && isSameValue(shardingConditionValue1, shardingConditionValue2); + } + + private boolean isSameLogicTable(final ShardingRule shardingRule, final ShardingConditionValue shardingValue1, final ShardingConditionValue shardingValue2) { + return shardingValue1.getTableName().equals(shardingValue2.getTableName()) || isBindingTable(shardingRule, shardingValue1, shardingValue2); + } + + private boolean isBindingTable(final ShardingRule shardingRule, final ShardingConditionValue shardingValue1, final ShardingConditionValue shardingValue2) { + Optional<BindingTableRule> bindingRule = shardingRule.findBindingTableRule(shardingValue1.getTableName()); + return bindingRule.isPresent() && bindingRule.get().hasLogicTable(shardingValue2.getTableName()); + } + + @SuppressWarnings({"rawtypes", "unchecked"}) + private boolean isSameValue(final ShardingConditionValue shardingConditionValue1, final ShardingConditionValue shardingConditionValue2) { + if (shardingConditionValue1 instanceof ListShardingConditionValue && shardingConditionValue2 instanceof ListShardingConditionValue) { + return SafeNumberOperationUtils.safeCollectionEquals( + ((ListShardingConditionValue) shardingConditionValue1).getValues(), ((ListShardingConditionValue) shardingConditionValue2).getValues()); + } else if (shardingConditionValue1 instanceof RangeShardingConditionValue && shardingConditionValue2 instanceof RangeShardingConditionValue) { + return SafeNumberOperationUtils.safeRangeEquals( + ((RangeShardingConditionValue) shardingConditionValue1).getValueRange(), ((RangeShardingConditionValue) shardingConditionValue2).getValueRange()); + } + return false; + } + + private ShardingConditions createShardingConditions(final SQLStatementContext<SelectStatement> sqlStatementContext, Review comment: The `createShardingConditions` method is similar to the method of the same name in `ShardingSQLRouter`, can it be extracted into a common method? In addition, the `ShardingSelectStatementValidator` only validate the subquery in `select` statement, subquery in `insert select` statement also need to validate. So I think we need to modify the `preValidate` method in `ShardingInsertStatementValidator` at the same time. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
