I want to use data caching with ehcache in my portlet. I use Spring MVC and liferay portal. If I want to use Cacheable annotation, empty data file is generated.
SocialGraphUI-portlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:cache="http://www.springframework.org/schema/cache"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/cache
http://www.springframework.org/schema/cache/spring-cache.xsd">
<context:component-scan base-package="socialgraphui" />
<cache:annotation-driven />
<cache:annotation-driven cache-manager="cacheManager" mode="proxy" proxy-target-class="true" />
<bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean" p:config-location="/WEB-INF/ehcache.xml" p:shared="true" />
<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager" p:cacheManager-ref="ehcache" />
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
</bean>
<mvc:annotation-driven>
<mvc:message-converters>
<bean class="org.springframework.http.converter.json.GsonHttpMessageConverter" />
</mvc:message-converters>
</mvc:annotation-driven>
<bean class="org.springframework.web.portlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>
<bean class="org.springframework.web.portlet.mvc.annotation.DefaultAnnotationHandlerMapping"/>
<!-- Spring MVC Message Source -->
<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
<property name="useCodeAsDefaultMessage" value="true"/>
<property name="basenames">
<list>
<value>content.socialGraph</value>
</list>
</property>
</bean>
</beans>
ehcache.xml
<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd">
<diskStore path="user.dir"/>
<defaultCache eternal="true" overflowToDisk="true" diskPersistent="true" />
<cache name="socialGraphCache" eternal="true" overflowToDisk="true" diskPersistent="true" />
</ehcache>
SocialGraphViewController.java
package socialgraphui.controller;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.liferay.portal.kernel.util.ParamUtil;
import socialgraphui.model.Edge;
import socialgraphui.model.Message;
import socialgraphui.model.Node;
import socialgraphui.model.SocialGraph;
import socialgraphui.service.SocialGraphService;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import org.apache.log4j.Logger;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletSession;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import javax.portlet.ResourceRequest;
import javax.portlet.ResourceResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.portlet.bind.annotation.ActionMapping;
import org.springframework.web.portlet.bind.annotation.RenderMapping;
import org.springframework.web.portlet.bind.annotation.ResourceMapping;
/**
*
* Controller for VIEW mode of portlet
*/
@Controller("socialGraphViewController")
@RequestMapping(value = "VIEW")
public class SocialGraphViewController{
Gson gson = new GsonBuilder().setPrettyPrinting().create();
private static final Logger logger = Logger.getLogger(SocialGraphViewController.class);
// -- auto-wiring of service dependency
@Autowired
@Qualifier("SGService")
private SocialGraphService socialGraphService;
public void setSocialGraphService(SocialGraphService service){
this.socialGraphService = service;
}
@ModelAttribute(value="socialgraph")
public SocialGraph getSocialGraph(){
return socialGraphService.getSocialGraph();
}
@InitBinder
public void initBinder(WebDataBinder binder) {
binder.registerCustomEditor(PersonDefinitionTypeList.class, new PersonDefinitionTypeListEditor());
}
@ActionMapping(SocialGraphPortletConstants.SUBMIT_FILTER)
public void handleActionRequest(ActionRequest request, ActionResponse response, PortletSession session)throws Exception {
logger.info("handleActionRequest in was executed");
...
}
@RenderMapping
public String handleRenderRequest(RenderRequest request, RenderResponse response, ModelMap model, Locale locale, PortletSession session) {
logger.info("handleRenderRequest was executed");
...
return SocialGraphPortletConstants.VIEW;
}
}
I want to cache result of service constructor, but not sure if I do it in proper way.
SocialGraphServiceImpl.java
import com.google.common.base.Function;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.collect.Multimap;
import com.google.common.collect.Multimaps;
import com.google.common.collect.Sets;
import socialgraphui.controller.SocialGraphViewController;
import socialgraphui.model.Discussion;
import socialgraphui.model.Edge;
import socialgraphui.model.Email;
import socialgraphui.model.Message;
import socialgraphui.model.Node;
import socialgraphui.model.PhoneCall;
import socialgraphui.model.SocialGraph;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.springframework.cache.annotation.CachePut;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;
/**
*
*/
@Service(value="SGService")
public class SocialGraphServiceImpl implements SocialGraphService{
private SocialGraph socialgraph = new SocialGraph();
private CreateObjects crObjects = new CreateObjects();
public SocialGraphServiceImpl(){
this.fillGraph();
}
@Override
@Cacheable(value = "socialGraphCache")
public SocialGraph fillGraph(){
this.socialgraph = crObjects.createObjects();
return this.socialgraph;
}
}
And here is what I want to cache.
SocialGraph.java
package socialgraphui.model;
import java.io.Serializable;
import java.util.List;
public class SocialGraph implements Serializable{
private static final long serialVersionUID = -6977846672304367384L;
private List<Node> nodes;
private List<Edge> edges;
public List<Node> getNodes() {
return nodes;
}
public void setNodes(List<Node> nodes) {
this.nodes = nodes;
}
public List<Edge> getEdges() {
return edges;
}
public void setEdges(List<Edge> edges) {
this.edges = edges;
}
}
When I deploy the portlet, I don't get any errors, but generated cache file is empty.
I have same problem and it cause due to i didn't implement all object(class) that used in main object that i want to save in disk.
for more detail see this example.
public class User implements Serializable{
private Address address; // this object(class) not implements Serializable
}
so after implements for all class it works correctly.