| /** |
| * @file GenerateFlowFile.h |
| * GenerateFlowFile 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 __GENERATE_FLOW_FILE_H__ |
| #define __GENERATE_FLOW_FILE_H__ |
| |
| #include "FlowFileRecord.h" |
| #include "Processor.h" |
| #include "ProcessSession.h" |
| |
| //! GenerateFlowFile Class |
| class GenerateFlowFile : public Processor |
| { |
| public: |
| //! Constructor |
| /*! |
| * Create a new processor |
| */ |
| GenerateFlowFile(std::string name, uuid_t uuid = NULL) |
| : Processor(name, uuid) |
| { |
| _data = NULL; |
| _dataSize = 0; |
| } |
| //! Destructor |
| virtual ~GenerateFlowFile() |
| { |
| if (_data) |
| delete[] _data; |
| } |
| //! Processor Name |
| static const std::string ProcessorName; |
| //! Supported Properties |
| static Property FileSize; |
| static Property BatchSize; |
| static Property DataFormat; |
| static Property UniqueFlowFiles; |
| static const char *DATA_FORMAT_BINARY; |
| static const char *DATA_FORMAT_TEXT; |
| //! Supported Relationships |
| static Relationship Success; |
| //! Nest Callback Class for write stream |
| class WriteCallback : public OutputStreamCallback |
| { |
| public: |
| WriteCallback(char *data, uint64_t size) |
| : _data(data), _dataSize(size) {} |
| char *_data; |
| uint64_t _dataSize; |
| void process(std::ofstream *stream) { |
| if (_data && _dataSize > 0) |
| stream->write(_data, _dataSize); |
| } |
| }; |
| |
| public: |
| //! OnTrigger method, implemented by NiFi GenerateFlowFile |
| virtual void onTrigger(ProcessContext *context, ProcessSession *session); |
| //! Initialize, over write by NiFi GenerateFlowFile |
| virtual void initialize(void); |
| |
| protected: |
| |
| private: |
| //! Generated data |
| char * _data; |
| //! Size of the generate data |
| uint64_t _dataSize; |
| }; |
| |
| #endif |