/**
    * Copyright By Grandsoft Company Limited.  
    * 2014年4月28日 上午8:42:45
    */
   package gboat2.base.view.components;
   
   import gboat2.base.bridge.util.BundleUtil;
   import gboat2.base.plugin.struts.dispatcher.GboatDispatcherResult;
   
  import java.io.Writer;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.apache.struts2.ServletActionContext;
  import org.apache.struts2.views.annotations.StrutsTag;
  import org.osgi.framework.Bundle;
  
  import com.opensymphony.xwork2.ActionContext;
  import com.opensymphony.xwork2.ActionInvocation;
  import com.opensymphony.xwork2.Result;
  import com.opensymphony.xwork2.util.ValueStack;
  import com.opensymphony.xwork2.util.logging.Logger;
  import com.opensymphony.xwork2.util.logging.LoggerFactory;
  
  /**
   * <p>Include a servlet's output (result of servlet or a JSP page).</p>
   * <p>Note: Any additional params supplied to the included page are <b>not</b>
   * accessible within the rendered page through the &lt;g2:property...&gt; tag
   * since no valuestack will be created. You can, however, access them in a
   * servlet via the HttpServletRequest object or from a JSP page via
   * a scriptlet.</p>
   *
   * <ul>
   *      <li>value* (String) - jsp page to be included</li>
   * </ul>
   *
   * <p/> <b>Examples</b>
   * <pre>
   * &lt;-- One: do an include myJsp.jsp page --&gt;
   * &lt;g2:include value="myJsp.jsp" /&gt;
   *
   * &lt;-- Two: do an include to myJsp.jsp page with parameters param1=value1 and param2=value2 --&gt;
   * &lt;g2:include value="myJsp.jsp"&gt;
   *    &lt;g2:param name="param1" value="value2" /&gt;
   *    &lt;g2:param name="param2" value="value2" /&gt;
   * &lt;/g2:include&gt;
   *
   * &lt;-- Three: do an include to myJsp.jsp page with parameters param1=value1 and param2=value2 --&gt;
   * &lt;g2:include value="myJsp.jsp"&gt;
   *    &lt;g2:param name="param1"&gt;value1&lt;/g2:param&gt;
   *    &lt;g2:param name="param2"&gt;value2&lt;/g2:param&gt;
   * &lt;/g2:include&gt;
   * </pre>
   *
   * @author <a href="mailto:[email protected]">何明旺</a>
   * @since 3.0
   * @date 2014年4月28日
   */
  @StrutsTag(
          name="include",
          tldTagClass="gboat2.base.view.jsp.IncludeTag",
          description="Include a servlet's output (result of servlet or a JSP page)")
  public class Include extends org.apache.struts2.components.Include {
  
      private static final Logger LOG = LoggerFactory.getLogger(Include.class);
  
      protected HttpServletRequest request;
  
      public Include(ValueStack stack, HttpServletRequest req, HttpServletResponse res) {
          super(stack, req, res);
          this.request = req;
      }
  
      public boolean end(Writer writer, String body) {
          String page = findString(value, "value", "You must specify the URL to include. Example: /foo.jsp");
          page = getContextRelativePath(request, page);
          
          ActionContext actionContext = ServletActionContext.getContext();
          ActionInvocation invocation = actionContext.getActionInvocation();
          Bundle bundle = BundleUtil.getBundleForRequestJsp(page, invocation);
          
          
          if(bundle != null && !page.startsWith("/" + bundle.getSymbolicName() + "/")) {
              page = "/" + bundle.getSymbolicName() + page;
          }
          
          if(page.indexOf("glodon.gbmp.index") > 0){
          	page = "/"  + page;
          }
          try {
              Result result = invocation.getResult();
              if(result instanceof GboatDispatcherResult) {
                  // 如果返回结果为 GboatDispatcherResult， 需要将 JSP 从 Bundle 中复制到 webapp 目录下
                  page = GboatDispatcherResult.extractBundleJsp(page);
              }
          } catch (Exception e) {
              LOG.error("获取请求 [#0] 的 Result 失败。", e, invocation.toString());
          }
         setValue(page);
         return super.end(writer, body);
     }
 
 }