package com.quickwebframework.viewrender.jsp.service.impl;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleEvent;
import com.quickwebframework.framework.OsgiContext;
import com.quickwebframework.framework.WebContext;
import com.quickwebframework.viewrender.ViewRenderService;
import com.quickwebframework.viewrender.jsp.servlet.PluginJspDispatchServlet;
import com.quickwebframework.viewrender.jsp.support.Activator;
public class ViewRenderServiceImpl extends ViewRenderService {
private Map<String, PluginJspDispatchServlet> pluginNameServletMap = new HashMap<String, PluginJspDispatchServlet>();
public String getBundleName() {
return Activator.BUNDLE_NAME;
}
public void bundleChanged(BundleEvent event) {
if (BundleEvent.STOPPING == event.getType()
|| BundleEvent.STOPPED == event.getType()) {
String pluginName = event.getBundle().getSymbolicName();
if (pluginNameServletMap.containsKey(pluginName)) {
pluginNameServletMap.remove(pluginName);
}
}
}
public void renderView(HttpServletRequest request,
HttpServletResponse response, String viewName,
Map<String, Object> model) {
String[] tmpArray = viewName.split(this
.getPluginNameAndPathSplitString());
if (tmpArray.length < 2) {
throw new RuntimeException("视图名称[" + viewName + "]不符合规则：“[插件名]"
+ this.getPluginNameAndPathSplitString() + "[路径]”");
}
String pluginName = tmpArray[0];
String path = tmpArray[1];
// 对视图名称进行处理(添加前后缀)
// path = this.getViewNamePrefix() + path + this.getViewNameSuffix();
request.setAttribute(WebContext.CONST_PATH_NAME, path);
PluginJspDispatchServlet pluginJspDispatchServlet = pluginNameServletMap
.get(pluginName);
if (pluginJspDispatchServlet == null) {
Bundle bundle = OsgiContext.getBundleByName(pluginName);
pluginJspDispatchServlet = createNewPluginJspDispatchServlet(bundle);
pluginNameServletMap.put(pluginName, pluginJspDispatchServlet);
}
try {
pluginJspDispatchServlet.service(request, response);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
private PluginJspDispatchServlet createNewPluginJspDispatchServlet(
Bundle bundle) {
PluginJspDispatchServlet servlet = new PluginJspDispatchServlet(bundle);
final String bundleName = bundle.getSymbolicName();
try {
servlet.init(new ServletConfig() {
public String getServletName() {
return bundleName;
}
public ServletContext getServletContext() {
return WebContext.getServletContext();
}
public Enumeration<String> getInitParameterNames() {
return getServletContext().getInitParameterNames();
}
public String getInitParameter(String arg0) {
return getServletContext().getInitParameter(arg0);
}
});
} catch (ServletException e) {
throw new RuntimeException(e);
}
return servlet;
}
}