| /** |
| * 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.sqoop.validation; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| /** |
| * A specific implementation of validator that validates data copied, |
| * either import or export, using row counts from the data source and |
| * the target systems. |
| * |
| * This is used as the default validator unless overridden in configuration. |
| */ |
| public class RowCountValidator implements Validator { |
| |
| public static final Log LOG = LogFactory.getLog( |
| RowCountValidator.class.getName()); |
| |
| @Override |
| public boolean validate(ValidationContext context) |
| throws ValidationException { |
| return validate(context, |
| AbsoluteValidationThreshold.INSTANCE, AbortOnFailureHandler.INSTANCE); |
| } |
| |
| @Override |
| public boolean validate(ValidationContext validationContext, |
| ValidationThreshold validationThreshold, |
| ValidationFailureHandler validationFailureHandler) |
| throws ValidationException { |
| LOG.debug("Validating data using row counts: Source [" |
| + validationContext.getSourceRowCount() + "] with Target[" |
| + validationContext.getTargetRowCount() + "]"); |
| |
| if (validationThreshold.compare(validationContext.getSourceRowCount(), |
| validationContext.getTargetRowCount())) { |
| LOG.info("Data successfully validated"); |
| return true; |
| } |
| |
| validationContext.setMessage(this.getClass().getSimpleName()); |
| validationContext.setReason("The expected counter value was " |
| + validationContext.getSourceRowCount() + " but the actual value was " |
| + validationContext.getTargetRowCount()); |
| |
| return validationFailureHandler.handle(validationContext); |
| } |
| } |