java/w10/factory/StrategyFactory.java

package com.crawler.factory;

import com.crawler.strategy.*;
import java.util.HashMap;
import java.util.Map;

public class StrategyFactory {
    private static final Map<String, CrawlStrategy> strategies = new HashMap<>();

    static {
        strategies.put("blog", new BlogCrawlStrategy());
        strategies.put("news", new NewsCrawlStrategy());
        strategies.put("jsoup", new JsoupCrawlStrategy());
    }

    public static CrawlStrategy getStrategy(String strategyName) {
        return strategies.getOrDefault(strategyName.toLowerCase(), new JsoupCrawlStrategy());
    }

    public static boolean hasStrategy(String strategyName) {
        return strategies.containsKey(strategyName.toLowerCase());
    }

    public static String[] getAvailableStrategies() {
        return strategies.keySet().toArray(new String[0]);
    }
}