CosmosNi commented on code in PR #9445: URL: https://github.com/apache/seatunnel/pull/9445#discussion_r2163030594
########## seatunnel-transforms-v2/src/main/java/org/apache/seatunnel/transform/validator/DataValidatorTransform.java: ########## @@ -0,0 +1,195 @@ +/* + * 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.seatunnel.transform.validator; + +import org.apache.seatunnel.api.configuration.ReadonlyConfig; +import org.apache.seatunnel.api.table.catalog.CatalogTable; +import org.apache.seatunnel.api.table.catalog.Column; +import org.apache.seatunnel.api.table.catalog.ConstraintKey; +import org.apache.seatunnel.api.table.catalog.PrimaryKey; +import org.apache.seatunnel.api.table.catalog.TableIdentifier; +import org.apache.seatunnel.api.table.catalog.TableSchema; +import org.apache.seatunnel.api.table.type.SeaTunnelRow; +import org.apache.seatunnel.api.table.type.SeaTunnelRowType; +import org.apache.seatunnel.common.exception.CommonErrorCode; +import org.apache.seatunnel.transform.common.AbstractCatalogSupportMapTransform; +import org.apache.seatunnel.transform.common.ErrorHandleWay; +import org.apache.seatunnel.transform.common.TransformCommonOptions; +import org.apache.seatunnel.transform.exception.TransformException; +import org.apache.seatunnel.transform.validator.ValidationResultHandler.ValidationProcessResult; + +import org.apache.commons.collections4.map.SingletonMap; + +import lombok.extern.slf4j.Slf4j; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.stream.Collectors; + +/** DataValidator Transform for validating field values according to configured rules. */ +@Slf4j +public class DataValidatorTransform extends AbstractCatalogSupportMapTransform { + public static final String PLUGIN_NAME = "DataValidator"; + + private final DataValidatorTransformConfig config; + private final List<FieldValidator> fieldValidators; + private final ValidationResultHandler resultHandler; + private final ErrorHandleWay errorHandleWay; + private final String errorTable; + + public DataValidatorTransform(ReadonlyConfig readonlyConfig, CatalogTable catalogTable) { + super(catalogTable); + this.config = DataValidatorTransformConfig.of(readonlyConfig); + this.errorHandleWay = + readonlyConfig + .getOptional(TransformCommonOptions.ROW_ERROR_HANDLE_WAY_OPTION) + .orElse(ErrorHandleWay.FAIL); + this.errorTable = + readonlyConfig.getOptional(TransformCommonOptions.ERROR_TABLE_OPTION).orElse(null); + this.resultHandler = new ValidationResultHandler(); + this.fieldValidators = initializeFieldValidators(); + } + + @Override + protected SeaTunnelRow transformRow(SeaTunnelRow inputRow) { + // Execute validation for all fields + Map<String, List<ValidationResult>> fieldResults = new HashMap<>(); + ValidationContext context = + new ValidationContext( + inputRow, + inputCatalogTable.getTableSchema().toPhysicalRowDataType(), + new HashMap<>(), + null); + + // Always validate all fields (no fail fast) + for (FieldValidator validator : fieldValidators) { + String fieldName = validator.getFieldName(); + Object fieldValue = inputRow.getField(validator.getFieldIndex()); + + // Update context with current field name + ValidationContext fieldContext = + new ValidationContext( + inputRow, + inputCatalogTable.getTableSchema().toPhysicalRowDataType(), + context.getGlobalContext(), + fieldName); + + List<ValidationResult> results = validator.validate(fieldValue, fieldContext, false); + fieldResults.put(fieldName, results); + } + + // Process validation results + ValidationProcessResult processResult = + resultHandler.processResults(inputRow, fieldResults); + + // Handle validation failures + if (!processResult.isValid()) { + log.error( + "Validation failed for row: {}", + String.join("; ", processResult.getErrorMessages())); + + if (errorHandleWay == ErrorHandleWay.FAIL) { + Map<String, String> params = + new SingletonMap<>( + "message", + "Validation failed: " + + String.join("; ", processResult.getErrorMessages())); + throw new TransformException(CommonErrorCode.VALIDATION_FAILED, params); + } else if (errorHandleWay == ErrorHandleWay.SKIP) { + return null; // Skip this row + } else if (errorHandleWay.allowRouteToTable()) { + // Route invalid data to error table by setting tableId + if (errorTable != null && !errorTable.isEmpty()) { + SeaTunnelRow errorRow = inputRow.copy(); + errorRow.setTableId(errorTable); + log.debug("Routing invalid data to error table: {}", errorTable); + return errorRow; Review Comment: How about keeping only three fields, source_table_id, original_data, validation_errors. -- This is an automated message from the Apache Git Service. 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