package com.firefly.mvc.web.servlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.firefly.mvc.web.DispatcherController;
import com.firefly.mvc.web.HandlerChain;
import com.firefly.mvc.web.View;
import com.firefly.mvc.web.WebContext;
import com.firefly.utils.log.Log;
import com.firefly.utils.log.LogFactory;
public class HttpServletDispatcherController implements DispatcherController {
private static Log log = LogFactory.getInstance().getLog("firefly-system");
protected WebContext webContext;
public HttpServletDispatcherController(WebContext webContext) {
this.webContext = webContext;
}
@Override
public void dispatch(HttpServletRequest request, HttpServletResponse response) {
String encoding = webContext.getEncoding();
try {
request.setCharacterEncoding(encoding);
} catch (Throwable t) {
log.error("dispatcher error", t);
}
response.setCharacterEncoding(encoding);
StringBuilder uriBuilder = new StringBuilder(request.getRequestURI());
uriBuilder.delete(0, request.getContextPath().length() + request.getServletPath().length());
String servletURI = uriBuilder.length() <= 0 ? null : uriBuilder.toString();
HandlerChain chain = webContext.match(request.getRequestURI(), servletURI);
View v = null;
try {
v = chain.doNext(request, response, chain);
} catch (Throwable e) {
log.error("dispatcher error", e);
if(!response.isCommitted()) {
String msg = "Server internal error";
SystemHtmlPage.responseSystemPage(request, response, webContext.getEncoding(), HttpServletResponse.SC_INTERNAL_SERVER_ERROR, msg);
}
return;
}
if(request.isAsyncStarted())
return;
if(v == null) {
if(!response.isCommitted()) {
String msg = request.getRequestURI() + " not found";
SystemHtmlPage.responseSystemPage(request, response, webContext.getEncoding(), HttpServletResponse.SC_NOT_FOUND, msg);
}
return;
}
try {
v.render(request, response);
} catch (Throwable t) {
log.error("dispatcher error", t);
if(!response.isCommitted()) {
String msg = "Server internal error";
SystemHtmlPage.responseSystemPage(request, response, webContext.getEncoding(), 500, msg);
}
}
}
}