| /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
| /* |
| * Copyright (c) 2014-2023, Regents of the University of California, |
| * Arizona Board of Regents, |
| * Colorado State University, |
| * University Pierre & Marie Curie, Sorbonne University, |
| * Washington University in St. Louis, |
| * Beijing Institute of Technology, |
| * The University of Memphis. |
| * |
| * This file is part of NFD (Named Data Networking Forwarding Daemon). |
| * See AUTHORS.md for complete list of NFD authors and contributors. |
| * |
| * NFD is free software: you can redistribute it and/or modify it under the terms |
| * of the GNU General Public License as published by the Free Software Foundation, |
| * either version 3 of the License, or (at your option) any later version. |
| * |
| * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; |
| * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| * PURPOSE. See the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include "strategy-choice-module.hpp" |
| #include "format-helpers.hpp" |
| |
| #include <ndn-cxx/mgmt/nfd/status-dataset.hpp> |
| |
| namespace nfd::tools::nfdc { |
| |
| void |
| StrategyChoiceModule::registerCommands(CommandParser& parser) |
| { |
| CommandDefinition defStrategyList("strategy", "list"); |
| defStrategyList |
| .setTitle("print strategy choices"); |
| parser.addCommand(defStrategyList, &StrategyChoiceModule::list); |
| parser.addAlias("strategy", "list", ""); |
| |
| CommandDefinition defStrategyShow("strategy", "show"); |
| defStrategyShow |
| .setTitle("show strategy choice of an entry") |
| .addArg("prefix", ArgValueType::NAME, Required::YES, Positional::YES); |
| parser.addCommand(defStrategyShow, &StrategyChoiceModule::show); |
| |
| CommandDefinition defStrategySet("strategy", "set"); |
| defStrategySet |
| .setTitle("set strategy choice for a name prefix") |
| .addArg("prefix", ArgValueType::NAME, Required::YES, Positional::YES) |
| .addArg("strategy", ArgValueType::NAME, Required::YES, Positional::YES); |
| parser.addCommand(defStrategySet, &StrategyChoiceModule::set); |
| |
| CommandDefinition defStrategyUnset("strategy", "unset"); |
| defStrategyUnset |
| .setTitle("clear strategy choice at a name prefix") |
| .addArg("prefix", ArgValueType::NAME, Required::YES, Positional::YES); |
| parser.addCommand(defStrategyUnset, &StrategyChoiceModule::unset); |
| } |
| |
| void |
| StrategyChoiceModule::list(ExecuteContext& ctx) |
| { |
| ctx.controller.fetch<ndn::nfd::StrategyChoiceDataset>( |
| [&] (const std::vector<StrategyChoice>& dataset) { |
| for (const StrategyChoice& entry : dataset) { |
| formatItemText(ctx.out, entry); |
| ctx.out << '\n'; |
| } |
| }, |
| ctx.makeDatasetFailureHandler("strategy choice dataset"), |
| ctx.makeCommandOptions()); |
| |
| ctx.face.processEvents(); |
| } |
| |
| void |
| StrategyChoiceModule::show(ExecuteContext& ctx) |
| { |
| auto prefix = ctx.args.get<Name>("prefix"); |
| |
| ctx.controller.fetch<ndn::nfd::StrategyChoiceDataset>( |
| [&] (const std::vector<StrategyChoice>& dataset) { |
| StrategyChoice match; // longest prefix match |
| for (const StrategyChoice& entry : dataset) { |
| if (entry.getName().isPrefixOf(prefix) && |
| entry.getName().size() >= match.getName().size()) { |
| match = entry; |
| } |
| } |
| formatItemText(ctx.out, match, true); |
| }, |
| ctx.makeDatasetFailureHandler("strategy choice dataset"), |
| ctx.makeCommandOptions()); |
| |
| ctx.face.processEvents(); |
| } |
| |
| void |
| StrategyChoiceModule::set(ExecuteContext& ctx) |
| { |
| auto prefix = ctx.args.get<Name>("prefix"); |
| auto strategy = ctx.args.get<Name>("strategy"); |
| |
| ctx.controller.start<ndn::nfd::StrategyChoiceSetCommand>( |
| ControlParameters().setName(prefix).setStrategy(strategy), |
| [&] (const ControlParameters& resp) { |
| ctx.out << "strategy-set "; |
| text::ItemAttributes ia; |
| ctx.out << ia("prefix") << resp.getName() |
| << ia("strategy") << resp.getStrategy() << '\n'; |
| }, |
| [&] (const ControlResponse& resp) { |
| if (resp.getCode() == 404) { |
| ctx.exitCode = 7; |
| ctx.err << "Unknown strategy: " << strategy << '\n'; |
| ///\todo #3887 list available strategies |
| return; |
| } |
| ctx.makeCommandFailureHandler("setting strategy")(resp); // invoke general error handler |
| }, |
| ctx.makeCommandOptions()); |
| |
| ctx.face.processEvents(); |
| } |
| |
| void |
| StrategyChoiceModule::unset(ExecuteContext& ctx) |
| { |
| auto prefix = ctx.args.get<Name>("prefix"); |
| |
| if (prefix.empty()) { |
| ctx.exitCode = 2; |
| ctx.err << "Unsetting default strategy is prohibited\n"; |
| return; |
| } |
| |
| ctx.controller.start<ndn::nfd::StrategyChoiceUnsetCommand>( |
| ControlParameters().setName(prefix), |
| [&] (const ControlParameters& resp) { |
| ctx.out << "strategy-unset "; |
| text::ItemAttributes ia; |
| ctx.out << ia("prefix") << resp.getName() << '\n'; |
| }, |
| ctx.makeCommandFailureHandler("unsetting strategy"), |
| ctx.makeCommandOptions()); |
| |
| ctx.face.processEvents(); |
| } |
| |
| void |
| StrategyChoiceModule::fetchStatus(Controller& controller, |
| const std::function<void()>& onSuccess, |
| const Controller::DatasetFailCallback& onFailure, |
| const CommandOptions& options) |
| { |
| controller.fetch<ndn::nfd::StrategyChoiceDataset>( |
| [this, onSuccess] (const std::vector<StrategyChoice>& result) { |
| m_status = result; |
| onSuccess(); |
| }, |
| onFailure, options); |
| } |
| |
| void |
| StrategyChoiceModule::formatStatusXml(std::ostream& os) const |
| { |
| os << "<strategyChoices>"; |
| for (const StrategyChoice& item : m_status) { |
| this->formatItemXml(os, item); |
| } |
| os << "</strategyChoices>"; |
| } |
| |
| void |
| StrategyChoiceModule::formatItemXml(std::ostream& os, const StrategyChoice& item) const |
| { |
| os << "<strategyChoice>"; |
| os << "<namespace>" << xml::Text{item.getName().toUri()} << "</namespace>"; |
| os << "<strategy><name>" << xml::Text{item.getStrategy().toUri()} << "</name></strategy>"; |
| os << "</strategyChoice>"; |
| } |
| |
| void |
| StrategyChoiceModule::formatStatusText(std::ostream& os) const |
| { |
| os << "Strategy choices:\n"; |
| for (const StrategyChoice& item : m_status) { |
| os << " "; |
| formatItemText(os, item); |
| os << '\n'; |
| } |
| } |
| |
| void |
| StrategyChoiceModule::formatItemText(std::ostream& os, const StrategyChoice& item, bool wantMultiLine) |
| { |
| text::ItemAttributes ia(wantMultiLine, 8); |
| os << ia("prefix") << item.getName() |
| << ia("strategy") << item.getStrategy() |
| << ia.end(); |
| } |
| |
| } // namespace nfd::tools::nfdc |