/*
* Copyright 2011 SpringSource
*
* 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 org.grails.web.servlet.mvc;
import org.grails.core.artefact.ControllerArtefactHandler;
import grails.core.GrailsApplication;
import grails.core.GrailsControllerClass;
import org.springframework.beans.factory.annotation.Autowired;
/**
* Default implementation that uses the web request to obtain information about the currently
* executing request.
*
* @author Graeme Rocher
* @since 2.0
*/
public class DefaultRequestStateLookupStrategy implements GrailsRequestStateLookupStrategy {
public static final String DEFAULT_REQUEST_ENCODING = "UTF-8";
private GrailsApplication grailsApplication;
private GrailsWebRequest webRequest;
public DefaultRequestStateLookupStrategy() {
// default
}
public DefaultRequestStateLookupStrategy(GrailsWebRequest webRequest) {
this.webRequest = webRequest;
}
@Autowired
public void setGrailsApplication(GrailsApplication grailsApplication) {
this.grailsApplication = grailsApplication;
}
public String getContextPath() {
final GrailsWebRequest req = getWebRequest();
if (req != null) {
return req.getContextPath();
}
return null;
}
public String getCharacterEncoding() {
final GrailsWebRequest req = getWebRequest();
if (req != null) {
return req.getCurrentRequest().getCharacterEncoding();
}
return DEFAULT_REQUEST_ENCODING;
}
@Override
public String getHttpMethod() {
final GrailsWebRequest req = getWebRequest();
if (req != null) {
return req.getCurrentRequest().getMethod();
}
return null;
}
public String getControllerName() {
final GrailsWebRequest req = getWebRequest();
return getControllerNameInternal(req);
}
private String getControllerNameInternal(GrailsWebRequest req) {
if (req != null) {
return req.getControllerName();
}
return null;
}
public String getActionName() {
final GrailsWebRequest req = getWebRequest();
if (req != null) {
String actionName = req.getActionName();
if (actionName == null) {
if (grailsApplication == null) {
grailsApplication = req.getAttributes().getGrailsApplication();
}
if (grailsApplication != null) {
final String controllerName = getControllerNameInternal(req);
return getActionName(grailsApplication,controllerName);
}
}
}
return null;
}
private String getActionName(GrailsApplication application, String controllerName) {
if (application != null) {
final GrailsControllerClass controllerClass = (GrailsControllerClass) application.getArtefactByLogicalPropertyName(ControllerArtefactHandler.TYPE, controllerName);
if (controllerClass != null) {
return controllerClass.getDefaultAction();
}
}
return null;
}
public String getActionName(String controllerName) {
if (controllerName != null) {
if (grailsApplication == null) {
final GrailsWebRequest grailsWebRequest = getWebRequest();
if (grailsWebRequest!= null)
grailsApplication = grailsWebRequest.getAttributes().getGrailsApplication();
}
return getActionName(grailsApplication, controllerName);
}
return null;
}
public GrailsWebRequest getWebRequest() {
return webRequest != null ? webRequest : GrailsWebRequest.lookup();
}
}