Package com.multysite.controller

Source Code of com.multysite.controller.DetailServlet

package com.multysite.controller;

import java.io.IOException;
import java.net.URLDecoder;
import java.util.TreeMap;
import java.util.logging.Logger;

import javax.script.Bindings;
import javax.script.CompiledScript;
import javax.script.ScriptContext;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.google.appengine.api.NamespaceManager;
import com.multysite.entity.News;
import com.multysite.entity.admin.ApplicationConfig;
import com.multysite.entity.admin.ApplicationTemplate;
import com.multysite.model.CategoryModel;
import com.multysite.model.NewsModel;
import com.multysite.model.TagModel;
import com.multysite.quercus.CompileScriptEngine;
import com.multysite.util.RecentViewHelper;
import com.multysite.util.Setting;

@SuppressWarnings("serial")
public class DetailServlet extends HttpServlet {

  private static final Logger log = Logger.getLogger(DetailServlet.class
      .getName());

  private static TreeMap<String, String> treeCache = new TreeMap<String, String>();

  public void doGet(HttpServletRequest req, HttpServletResponse resp)
      throws IOException {
    try {
      ApplicationTemplate template = (ApplicationTemplate) req
          .getAttribute("template");
      ApplicationConfig config = (ApplicationConfig) req
          .getAttribute("config");
      if (template != null && config != null) {
        /*
         * get detail content
         */
        String alias = req.getRequestURI().replace("/", "")
            .replace(".html", "");
        alias = URLDecoder.decode(alias, "UTF-8");
        if (treeCache.containsKey(alias)) {
          log.warning("-------detail cached -----");
          resp.getWriter().print(treeCache.get(alias));
        } else {
          log.warning("-------detail no cache -----");
          News obj = NewsModel.getById(alias);
          if (obj != null) {
            CategoryModel cateModel = new CategoryModel();
            cateModel.prepareAll();
            TagModel tagModel = new TagModel();
            tagModel.prepareList();
            CompiledScript compiledscript = CompileScriptEngine
                .getCompileScript(config.getApplicationId(),
                    "detail", template.getDetail());

            Bindings bind = compiledscript.getEngine().getBindings(
                ScriptContext.ENGINE_SCOPE);
            bind.put("title_for_layout", config.getTitle());
            bind.put("description_for_layout",
                config.getDescription());
            bind.put("keyword_for_layout", config.getKeyword());
            bind.put("css_for_layout", template.getCss());
            bind.put("js_for_layout", template.getJs());

            RecentViewHelper.addRecentView(obj);
            bind.put("recent_view",
                RecentViewHelper.getRecentView());
            bind.put("list_tag", tagModel.getListResult());
            bind.put("list_category", cateModel.getListResult());
            bind.put("article", obj);
            try {
              String result = (String) compiledscript.eval();
              treeCache.put(alias, result);
              resp.getWriter().print(result);
            } catch (Exception e) {
              e.printStackTrace();
              log.warning(e.toString());
            }
          } else {
            resp.sendRedirect("/");
          }
        }

      } else {
        NamespaceManager.set(Setting.getGeneralNamespace());
        resp.sendRedirect("http://" + Setting.getDomain());
      }
    } catch (Exception e) {
      e.printStackTrace();
      log.warning(e.toString());
    }
  }
}
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