MikeThomsen commented on a change in pull request #3286: NIFI-5988 Fixed validation issues on database and collection names. URL: https://github.com/apache/nifi/pull/3286#discussion_r258001543
########## File path: nifi-nar-bundles/nifi-mongodb-bundle/nifi-mongodb-processors/src/main/java/org/apache/nifi/processors/mongodb/util/CollectionNameValidator.java ########## @@ -0,0 +1,65 @@ +/* + * 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.nifi.processors.mongodb.util; + +import org.apache.nifi.components.ValidationContext; +import org.apache.nifi.components.ValidationResult; +import org.apache.nifi.components.Validator; +import org.apache.nifi.processor.util.StandardValidators; + +/** + * Validator for the collection name field. It is derived from the rules published in the documentation for + * MongoDB here: + * + * https://docs.mongodb.com/manual/reference/limits/#restrictions-on-collection-names + */ +public class CollectionNameValidator implements Validator { + private static final CollectionNameValidator INSTANCE = new CollectionNameValidator(); + + private CollectionNameValidator() { + + } + + @Override + public ValidationResult validate(String subject, String input, ValidationContext context) { + ValidationResult.Builder builder = new ValidationResult.Builder(); + builder.subject(subject).input(input); + + ValidationResult elCheck = StandardValidators.NON_EMPTY_EL_VALIDATOR.validate(subject, input, context); + + if (!elCheck.isValid()) { + builder.valid(false).explanation(elCheck.getExplanation()); + } else if (input.contains("$") && !elCheck.isValid()) { + builder.valid(false).explanation("Collection name cannot have the \"$\" character in it."); Review comment: Ok, I'll take a look. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
