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| /**
* 宏命令 - 组合多个命令
*/
public class MacroCommand implements Command {
private Command[] commands;
private String description;
public MacroCommand(Command[] commands, String description) {
this.commands = commands;
this.description = description;
}
@Override
public void execute() {
System.out.println("🎬 执行宏命令: " + description);
for (Command command : commands) {
System.out.print(" ");
command.execute();
}
}
@Override
public void undo() {
System.out.println("🎬 撤销宏命令: " + description);
// 反向撤销所有命令
for (int i = commands.length - 1; i >= 0; i--) {
System.out.print(" ");
commands[i].undo();
}
}
@Override
public String getDescription() {
return "宏命令: " + description;
}
}
/**
* 智能家居场景管理器
*/
public class SmartHomeSceneManager {
private Map<String, MacroCommand> scenes;
public SmartHomeSceneManager() {
this.scenes = new HashMap<>();
}
public void createScene(String sceneName, Command[] commands) {
MacroCommand scene = new MacroCommand(commands, sceneName);
scenes.put(sceneName, scene);
System.out.println("🏠 创建场景: " + sceneName);
}
public void activateScene(String sceneName) {
MacroCommand scene = scenes.get(sceneName);
if (scene != null) {
System.out.println("🏠 激活场景: " + sceneName);
scene.execute();
} else {
System.out.println("❌ 场景不存在: " + sceneName);
}
}
public void deactivateScene(String sceneName) {
MacroCommand scene = scenes.get(sceneName);
if (scene != null) {
System.out.println("🏠 取消场景: " + sceneName);
scene.undo();
} else {
System.out.println("❌ 场景不存在: " + sceneName);
}
}
public void listScenes() {
System.out.println("=== 可用场景 ===");
for (String sceneName : scenes.keySet()) {
System.out.println(" " + sceneName);
}
}
}
// 智能家居场景演示
public class SmartHomeSceneDemo {
public static void main(String[] args) {
System.out.println("=== 智能家居场景宏命令演示 ===");
// 创建设备
Light livingRoomLight = new Light("客厅");
Light bedroomLight = new Light("卧室");
AirConditioner livingRoomAC = new AirConditioner("客厅");
AirConditioner bedroomAC = new AirConditioner("卧室");
// 创建场景管理器
SmartHomeSceneManager sceneManager = new SmartHomeSceneManager();
System.out.println("\n=== 创建观影场景 ===");
Command[] movieCommands = {
new LightDimCommand(livingRoomLight, 20), // 客厅灯调暗
new LightOffCommand(bedroomLight), // 关闭卧室灯
new AirConditionerOnCommand(livingRoomAC), // 开启客厅空调
new AirConditionerTempCommand(livingRoomAC, 24) // 设置适宜温度
};
sceneManager.createScene("观影模式", movieCommands);
System.out.println("\n=== 创建睡眠场景 ===");
Command[] sleepCommands = {
new LightOffCommand(livingRoomLight), // 关闭客厅灯
new LightOffCommand(bedroomLight), // 关闭卧室灯
new AirConditionerOffCommand(livingRoomAC), // 关闭客厅空调
new AirConditionerOnCommand(bedroomAC), // 开启卧室空调
new AirConditionerTempCommand(bedroomAC, 26) // 设置睡眠温度
};
sceneManager.createScene("睡眠模式", sleepCommands);
System.out.println("\n=== 创建回家场景 ===");
Command[] homeCommands = {
new LightOnCommand(livingRoomLight), // 开启客厅灯
new LightDimCommand(bedroomLight, 50), // 卧室灯调至50%
new AirConditionerOnCommand(livingRoomAC), // 开启客厅空调
new AirConditionerTempCommand(livingRoomAC, 23) // 设置舒适温度
};
sceneManager.createScene("回家模式", homeCommands);
sceneManager.listScenes();
System.out.println("\n=== 激活观影场景 ===");
sceneManager.activateScene("观影模式");
System.out.println("\n当前设备状态:");
System.out.println(livingRoomLight.getStatus());
System.out.println(bedroomLight.getStatus());
System.out.println(livingRoomAC.getStatus());
System.out.println(bedroomAC.getStatus());
System.out.println("\n=== 切换到睡眠场景 ===");
sceneManager.deactivateScene("观影模式"); // 先取消当前场景
sceneManager.activateScene("睡眠模式");
System.out.println("\n当前设备状态:");
System.out.println(livingRoomLight.getStatus());
System.out.println(bedroomLight.getStatus());
System.out.println(livingRoomAC.getStatus());
System.out.println(bedroomAC.getStatus());
System.out.println("\n=== 激活回家场景 ===");
sceneManager.deactivateScene("睡眠模式");
sceneManager.activateScene("回家模式");
System.out.println("\n最终设备状态:");
System.out.println(livingRoomLight.getStatus());
System.out.println(bedroomLight.getStatus());
System.out.println(livingRoomAC.getStatus());
System.out.println(bedroomAC.getStatus());
System.out.println("\n=== 宏命令的优势 ===");
System.out.println("✅ 一键执行多个操作");
System.out.println("✅ 场景化管理，用户体验好");
System.out.println("✅ 支持场景的整体撤销");
System.out.println("✅ 可以组合任意命令");
}
}
|