w10-张思渊-202401070104

w10/AnalyzeCommand.java

@@ -0,0 +1,71 @@
+package com.example.datacollect.command;
+
+import com.example.datacollect.model.Article;
+import com.example.datacollect.repository.ArticleRepository;
+import com.example.datacollect.strategy.CrawlStrategy;
+import com.example.datacollect.strategy.StrategyFactory;
+import com.example.datacollect.view.ConsoleView;
+import org.jsoup.Jsoup;
+import org.jsoup.nodes.Document;
+
+import java.util.List;
+
+public class AnalyzeCommand implements Command {
+    private final ConsoleView view;
+    private final StrategyFactory strategyFactory;
+
+    public AnalyzeCommand(ConsoleView view, StrategyFactory strategyFactory) {
+        this.view = view;
+        this.strategyFactory = strategyFactory;
+    }
+
+    @Override
+    public String getName() {
+        return "analyze";
+    }
+
+    @Override
+    public void execute(String[] args, ArticleRepository repository) {
+        if (args.length < 2) {
+            view.printError("Usage: analyze <url>");
+            return;
+        }
+        String url = args[1];
+
+        CrawlStrategy strategy = strategyFactory.getStrategy(url);
+        if (strategy == null) {
+            view.printError("No strategy found for: " + url);
+            return;
+        }
+
+        try {
+            view.printInfo("Analyzing: " + url);
+            Document doc = Jsoup.connect(url).get();
+            List<Article> articles = strategy.parse(url, doc);
+
+            int articleCount = articles.size();
+            int totalTitleLength = 0;
+            int maxTitleLength = 0;
+            int minTitleLength = Integer.MAX_VALUE;
+
+            for (Article article : articles) {
+                int len = article.getTitle().length();
+                totalTitleLength += len;
+                maxTitleLength = Math.max(maxTitleLength, len);
+                minTitleLength = Math.min(minTitleLength, len);
+            }
+
+            view.printSuccess("=== 分析结果 ===");
+            view.printInfo("文章数量: " + articleCount);
+            if (articleCount > 0) {
+                view.printInfo("标题总长度: " + totalTitleLength);
+                view.printInfo("平均标题长度: " + String.format("%.2f", (double) totalTitleLength / articleCount));
+                view.printInfo("最长标题: " + maxTitleLength + " 字符");
+                view.printInfo("最短标题: " + minTitleLength + " 字符");
+            }
+
+        } catch (Exception e) {
+            view.printError("Failed to analyze: " + e.getMessage());
+        }
+    }
+}