/**
* Copyright (c) 2011-2017, James Zhan 詹波 (jfinal@126.com).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.jfinal.core;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.jfinal.config.Constants;
import com.jfinal.aop.Invocation;
import com.jfinal.handler.Handler;
import com.jfinal.log.Log;
import com.jfinal.render.Render;
import com.jfinal.render.RenderException;
import com.jfinal.render.RenderManager;
/**
* ActionHandler
*/
public class ActionHandler extends Handler {
private final boolean devMode;
private final ActionMapping actionMapping;
private static final RenderManager renderManager = RenderManager.me();
private static final Log log = Log.getLog(ActionHandler.class);
public ActionHandler(ActionMapping actionMapping, Constants constants) {
this.actionMapping = actionMapping;
this.devMode = constants.getDevMode();
}
/**
* handle
* 1: Action action = actionMapping.getAction(target)
* 2: new Invocation(...).invoke()
* 3: render(...)
*/
public final void handle(String target, HttpServletRequest request, HttpServletResponse response, boolean[] isHandled) {
if (target.indexOf('.') != -1) {
return ;
}
isHandled[0] = true;
String[] urlPara = {null};
Action action = actionMapping.getAction(target, urlPara);
if (action == null) {
if (log.isWarnEnabled()) {
String qs = request.getQueryString();
log.warn("404 Action Not Found: " + (qs == null ? target : target + "?" + qs));
}
renderManager.getRenderFactory().getErrorRender(404).setContext(request, response).render();
return ;
}
try {
Controller controller = action.getControllerClass().newInstance();
controller.init(request, response, urlPara[0]);
if (devMode) {
if (ActionReporter.isReportAfterInvocation(request)) {
new Invocation(action, controller).invoke();
ActionReporter.report(target, controller, action);
} else {
ActionReporter.report(target, controller, action);
new Invocation(action, controller).invoke();
}
}
else {
new Invocation(action, controller).invoke();
}
Render render = controller.getRender();
if (render instanceof ForwardActionRender) {
String actionUrl = ((ForwardActionRender)render).getActionUrl();
if (target.equals(actionUrl)) {
throw new RuntimeException("The forward action url is the same as before.");
} else {
handle(actionUrl, request, response, isHandled);
}
return ;
}
if (render == null) {
render = renderManager.getRenderFactory().getDefaultRender(action.getViewPath() + action.getMethodName());
}
render.setContext(request, response, action.getViewPath()).render();
}
catch (RenderException e) {
if (log.isErrorEnabled()) {
String qs = request.getQueryString();
log.error(qs == null ? target : target + "?" + qs, e);
}
}
catch (ActionException e) {
int errorCode = e.getErrorCode();
String msg = null;
if (errorCode == 404) {
msg = "404 Not Found: ";
} else if (errorCode == 401) {
msg = "401 Unauthorized: ";
} else if (errorCode == 403) {
msg = "403 Forbidden: ";
}
if (msg != null) {
if (log.isWarnEnabled()) {
String qs = request.getQueryString();
log.warn(msg + (qs == null ? target : target + "?" + qs));
}
} else {
if (log.isErrorEnabled()) {
String qs = request.getQueryString();
log.error(qs == null ? target : target + "?" + qs, e);
}
}
e.getErrorRender().setContext(request, response, action.getViewPath()).render();
}
catch (Exception e) {
if (log.isErrorEnabled()) {
String qs = request.getQueryString();
log.error(qs == null ? target : target + "?" + qs, e);
}
renderManager.getRenderFactory().getErrorRender(500).setContext(request, response, action.getViewPath()).render();
}
}
}