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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed 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 "command.h"
#include <algorithm>
#include <string>
#include <vector>
static std::vector<Command*>& Commands() {
// commands is used in the constructor of Command. Defining it as a static
// variable in a function makes sure it is initialized before use.
static std::vector<Command*> commands;
return commands;
}
Command* Command::FindCommandByName(const std::string& cmd_name) {
for (auto command : Commands()) {
if (command->Name() == cmd_name) {
return command;
}
}
return nullptr;
}
static bool CompareCommandByName(Command* cmd1, Command* cmd2) {
return cmd1->Name() < cmd2->Name();
}
const std::vector<Command*>& Command::GetAllCommands() {
std::sort(Commands().begin(), Commands().end(), CompareCommandByName);
return Commands();
}
void Command::RegisterCommand(Command* cmd) {
Commands().push_back(cmd);
}
void Command::UnRegisterCommand(Command* cmd) {
for (auto it = Commands().begin(); it != Commands().end(); ++it) {
if (*it == cmd) {
Commands().erase(it);
break;
}
}
}
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