| /** |
| * @file ExtractText.h |
| * ExtractText class declaration |
| * |
| * 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. |
| */ |
| #ifndef EXTENSIONS_STANDARD_PROCESSORS_PROCESSORS_EXTRACTTEXT_H_ |
| #define EXTENSIONS_STANDARD_PROCESSORS_PROCESSORS_EXTRACTTEXT_H_ |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "core/Processor.h" |
| #include "core/ProcessSession.h" |
| #include "core/Resource.h" |
| #include "FlowFileRecord.h" |
| |
| namespace org { |
| namespace apache { |
| namespace nifi { |
| namespace minifi { |
| namespace processors { |
| |
| //! ExtractText Class |
| class ExtractText : public core::Processor { |
| public: |
| //! Constructor |
| /*! |
| * Create a new processor |
| */ |
| explicit ExtractText(std::string name, utils::Identifier uuid = utils::Identifier()) |
| : Processor(name, uuid) { |
| logger_ = logging::LoggerFactory<ExtractText>::getLogger(); |
| } |
| //! Processor Name |
| static constexpr char const* ProcessorName = "ExtractText"; |
| //! Supported Properties |
| static core::Property Attribute; |
| static core::Property SizeLimit; |
| |
| static core::Property RegexMode; |
| static core::Property IgnoreCaptureGroupZero; |
| static core::Property InsensitiveMatch; |
| static core::Property MaxCaptureGroupLen; |
| static core::Property EnableRepeatingCaptureGroup; |
| |
| //! Supported Relationships |
| static core::Relationship Success; |
| //! Default maximum bytes to read into an attribute |
| static constexpr int DEFAULT_SIZE_LIMIT = 2 * 1024 * 1024; |
| |
| //! OnTrigger method, implemented by NiFi ExtractText |
| void onTrigger(core::ProcessContext *context, core::ProcessSession *session); |
| //! Initialize, over write by NiFi ExtractText |
| void initialize(void); |
| |
| virtual bool supportsDynamicProperties() { |
| return true; |
| } |
| |
| class ReadCallback : public InputStreamCallback { |
| public: |
| ReadCallback(std::shared_ptr<core::FlowFile> flowFile, core::ProcessContext *ct, std::shared_ptr<logging::Logger> lgr); |
| ~ReadCallback() = default; |
| int64_t process(const std::shared_ptr<io::BaseStream>& stream); |
| |
| private: |
| std::shared_ptr<core::FlowFile> flowFile_; |
| core::ProcessContext *ctx_; |
| std::vector<uint8_t> buffer_; |
| std::shared_ptr<logging::Logger> logger_; |
| }; |
| |
| private: |
| //! Logger |
| std::shared_ptr<logging::Logger> logger_; |
| }; |
| |
| REGISTER_RESOURCE(ExtractText, "Extracts the content of a FlowFile and places it into an attribute."); |
| |
| } // namespace processors |
| } // namespace minifi |
| } // namespace nifi |
| } // namespace apache |
| } // namespace org |
| |
| #endif // EXTENSIONS_STANDARD_PROCESSORS_PROCESSORS_EXTRACTTEXT_H_ |