lordgamez commented on code in PR #1503: URL: https://github.com/apache/nifi-minifi-cpp/pull/1503#discussion_r1159633968
########## controller/Controller.cpp: ########## @@ -0,0 +1,214 @@ +/** + * 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. + */ +#include "Controller.h" + +#include <utility> + +#include "io/BufferStream.h" +#include "c2/C2Payload.h" + +namespace org::apache::nifi::minifi::controller { + +bool sendSingleCommand(std::unique_ptr<io::Socket> socket, uint8_t op, const std::string& value) { + if (socket->initialize() < 0) { + return false; + } + io::BufferStream stream; + stream.write(&op, 1); + stream.write(value); + return socket->write(stream.getBuffer()) == stream.size(); +} + +bool stopComponent(std::unique_ptr<io::Socket> socket, const std::string& component) { + return sendSingleCommand(std::move(socket), c2::Operation::STOP, component); +} + +bool startComponent(std::unique_ptr<io::Socket> socket, const std::string& component) { + return sendSingleCommand(std::move(socket), c2::Operation::START, component); +} + +bool clearConnection(std::unique_ptr<io::Socket> socket, const std::string& connection) { + return sendSingleCommand(std::move(socket), c2::Operation::CLEAR, connection); +} + +int updateFlow(std::unique_ptr<io::Socket> socket, std::ostream &out, const std::string& file) { + if (socket->initialize() < 0) { + return -1; + } + uint8_t op = c2::Operation::UPDATE; + io::BufferStream stream; + stream.write(&op, 1); + stream.write("flow"); + stream.write(file); + if (io::isError(socket->write(stream.getBuffer()))) { + return -1; + } + // read the response + uint8_t resp = 0; + socket->read(resp); + if (resp == c2::Operation::DESCRIBE) { + uint16_t connections = 0; + socket->read(connections); + out << connections << " are full" << std::endl; + for (int i = 0; i < connections; i++) { + std::string fullcomponent; + socket->read(fullcomponent); + out << fullcomponent << " is full" << std::endl; + } + } + return 0; +} + +int getFullConnections(std::unique_ptr<io::Socket> socket, std::ostream &out) { + if (socket->initialize() < 0) { + return -1; + } + uint8_t op = c2::Operation::DESCRIBE; + io::BufferStream stream; + stream.write(&op, 1); + stream.write("getfull"); + if (io::isError(socket->write(stream.getBuffer()))) { + return -1; + } + // read the response + uint8_t resp = 0; + socket->read(resp); + if (resp == c2::Operation::DESCRIBE) { + uint16_t connections = 0; + socket->read(connections); + out << connections << " are full" << std::endl; + for (int i = 0; i < connections; i++) { + std::string fullcomponent; + socket->read(fullcomponent); + out << fullcomponent << " is full" << std::endl; + } + } + return 0; +} + +int getConnectionSize(std::unique_ptr<io::Socket> socket, std::ostream &out, const std::string& connection) { + if (socket->initialize() < 0) { + return -1; + } + uint8_t op = c2::Operation::DESCRIBE; + io::BufferStream stream; + stream.write(&op, 1); + stream.write("queue"); + stream.write(connection); + if (io::isError(socket->write(stream.getBuffer()))) { + return -1; + } + // read the response + uint8_t resp = 0; + socket->read(resp); + if (resp == c2::Operation::DESCRIBE) { + std::string size; + socket->read(size); + out << "Size/Max of " << connection << " " << size << std::endl; + } + return 0; +} + +int listComponents(std::unique_ptr<io::Socket> socket, std::ostream &out, bool show_header) { + if (socket->initialize() < 0) { + return -1; + } + io::BufferStream stream; + uint8_t op = c2::Operation::DESCRIBE; + stream.write(&op, 1); + stream.write("components"); + if (io::isError(socket->write(stream.getBuffer()))) { + return -1; + } + uint16_t responses = 0; + socket->read(op); + socket->read(responses); + if (show_header) + out << "Components:" << std::endl; + + for (int i = 0; i < responses; i++) { + std::string name; + socket->read(name, false); + std::string status; + socket->read(status, false); + out << name << ", running: " << status << std::endl; + } + return 0; +} + +int listConnections(std::unique_ptr<io::Socket> socket, std::ostream &out, bool show_header) { + if (socket->initialize() < 0) { + return -1; + } + io::BufferStream stream; + uint8_t op = c2::Operation::DESCRIBE; + stream.write(&op, 1); + stream.write("connections"); + if (io::isError(socket->write(stream.getBuffer()))) { + return -1; + } + uint16_t responses = 0; + socket->read(op); + socket->read(responses); + if (show_header) + out << "Connection Names:" << std::endl; + + for (int i = 0; i < responses; i++) { + std::string name; + socket->read(name, false); + out << name << std::endl; + } + return 0; +} + +int printManifest(std::unique_ptr<io::Socket> socket, std::ostream &out) { + if (socket->initialize() < 0) { + return -1; + } + io::BufferStream stream; + uint8_t op = c2::Operation::DESCRIBE; + stream.write(&op, 1); + stream.write("manifest"); + if (io::isError(socket->write(stream.getBuffer()))) { + return -1; + } + socket->read(op); + std::string manifest; + socket->read(manifest, true); + out << manifest << std::endl; + return 0; +} + +int getJstacks(std::unique_ptr<io::Socket> socket, std::ostream &out) { Review Comment: I found the issue why it did not work, it's in the following thread: https://github.com/apache/nifi-minifi-cpp/pull/1503#discussion_r1143282678, but good point I'll fix the documentation -- This is an automated message from the Apache Git Service. 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