src/main/java/org/jasig/portlet/proxy/mvc/portlet/json/JsonPortletController.java
/**
* Licensed to Apereo under one or more contributor license
* agreements. See the NOTICE file distributed with this work
* for additional information regarding copyright ownership.
* Apereo licenses this file to you 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 the following location:
*
* 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.jasig.portlet.proxy.mvc.portlet.json;
import java.io.IOException;
import java.util.Map;
import javax.portlet.PortletPreferences;
import javax.portlet.PortletRequest;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectReader;
import org.jasig.portlet.proxy.mvc.IViewSelector;
import org.jasig.portlet.proxy.service.IContentRequest;
import org.jasig.portlet.proxy.service.IContentResponse;
import org.jasig.portlet.proxy.service.IContentService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.portlet.ModelAndView;
/**
* <p>JsonPortletController class.</p>
*
* @author Jen Bourey, jennifer.bourey@gmail.com
* @version $Id: $Id
*/
@Controller
@RequestMapping("VIEW")
public class JsonPortletController {
/** Constant <code>CONTENT_LOCATION_KEY="location"</code> */
protected static final String CONTENT_LOCATION_KEY = "location";
/** Constant <code>CONTENT_SERVICE_KEY="contentService"</code> */
protected static final String CONTENT_SERVICE_KEY = "contentService";
/** Constant <code>MAIN_VIEW_KEY="mainView"</code> */
protected static final String MAIN_VIEW_KEY = "mainView";
/** Constant <code>MOBILE_VIEW_KEY="mobileView"</code> */
protected static final String MOBILE_VIEW_KEY = "mobileView";
protected final Logger log = LoggerFactory.getLogger(this.getClass());
private ApplicationContext applicationContext;
/**
* <p>Setter for the field <code>applicationContext</code>.</p>
*
* @param applicationContext a {@link org.springframework.context.ApplicationContext} object
*/
@Autowired(required = true)
public void setApplicationContext(ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
}
private IViewSelector viewSelector;
/**
* <p>Setter for the field <code>viewSelector</code>.</p>
*
* @param viewSelector a {@link org.jasig.portlet.proxy.mvc.IViewSelector} object
*/
@Autowired(required = true)
public void setViewSelector(IViewSelector viewSelector) {
this.viewSelector = viewSelector;
}
/**
* <p>showContent.</p>
*
* @param request a {@link javax.portlet.PortletRequest} object
* @return a {@link org.springframework.web.portlet.ModelAndView} object
*/
@RequestMapping
public ModelAndView showContent(PortletRequest request) {
final ModelAndView mv = new ModelAndView();
final PortletPreferences preferences = request.getPreferences();
// locate the content service to use to retrieve our JSON
final String contentServiceKey = preferences.getValue(CONTENT_SERVICE_KEY, null);
final IContentService contentService = applicationContext.getBean(contentServiceKey, IContentService.class);
final IContentRequest proxyRequest = contentService.getRequest(request);
// retrieve the JSON content
final IContentResponse proxyResponse = contentService.getContent(proxyRequest, request);
// parse our JSON into a map and add it to the model
final ObjectMapper mapper = new ObjectMapper();
final ObjectReader reader = mapper.reader(Map.class);
try {
final Map<String, Object> map = reader.readValue(proxyResponse.getContent());
mv.addAllObjects(map);
} catch (JsonProcessingException e) {
log.error("Error parsing JSON content", e);
} catch (IOException e) {
log.error("IOException reading JSON content", e);
} finally {
if (proxyResponse != null) {
proxyResponse.close();
}
}
// set the appropriate view name
final String mainView = preferences.getValue(MAIN_VIEW_KEY, null);
final String mobileView = preferences.getValue(MOBILE_VIEW_KEY, null);
final String viewName;
if (mobileView != null) {
final boolean isMobile = viewSelector.isMobile(request);
viewName = isMobile ? mobileView : mainView;
} else {
viewName = mainView;
}
mv.setViewName(viewName);
return mv;
}
}