Java/W9/controller/CrawlerController.java

package com.example.datacollect.controller;

import com.example.datacollect.command.*;
import com.example.datacollect.model.Article;
import com.example.datacollect.model.DataService;
import com.example.datacollect.view.ConsoleView;
import com.example.datacollect.service.HistoryService;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class CrawlerController {
    private final Map<String, Command> commands = new HashMap<>();
    private final ConsoleView view;
    private final DataService dataService;
    private final HistoryService historyService;
    public CrawlerController(ConsoleView view, DataService dataService,HistoryService historyService) {
        this.view = view;
        this.dataService =dataService;
        this.historyService=historyService;
        register(new HelpCommand(view));
        register(new ListCommand(view));
        register(new CrawlCommand(view));
        register(new ExitCommand(view));
        //注册新命令
        register(new SearchCommand(view));
        register(new DeleteCommand(view));
        register(new HistoryCommand(view,historyService));
    }

    private void register(Command command) {
        commands.put(command.getName(), command);
    }

    public void handle(String input) {
        String text = input == null ? "" : input.trim();
        if (text.isEmpty()) {
            return;
        }
        String[] args = text.split("\\s+");
        String cmdName = args[0].toLowerCase();
        Command command = commands.get(cmdName);
        if (command == null) {
            view.printError("Unknown command: " + cmdName);
            return;
        }
        command.execute(args, dataService);
        historyService.add(text);
    }
}