package org.jcr_blog.service.jmx;
   
   import java.lang.management.ManagementFactory;
   import javax.annotation.PostConstruct;
   import javax.annotation.PreDestroy;
   import javax.ejb.Singleton;
   import javax.ejb.Startup;
   import javax.inject.Inject;
   import javax.management.InstanceAlreadyExistsException;
  import javax.management.MBeanServer;
  import javax.management.ObjectName;
  import org.jcr_blog.domain.BlogRepository;
  import org.jcr_blog.service.JcrBlogException;
  
  @Singleton
  @Startup
  public class JcrBlogImpl implements JcrBlogMXBean {
  
      private MBeanServer platformMBeanServer;
      private ObjectName objectName = null;
      @Inject
      private BlogRepository blogRepository;
  
      
      @PostConstruct
      public void registerInJMX() {
          try {
              objectName = new ObjectName("org.jcr_blog.jcrblog:type=" + this.getClass().getName());
              platformMBeanServer = ManagementFactory.getPlatformMBeanServer();
              platformMBeanServer.registerMBean(this, objectName);
           }catch(InstanceAlreadyExistsException e) {
               // ignore, bean can be deployed by backend and frontend
           } 
          
          catch (Exception e) {
              throw new IllegalStateException("Problem during registration of Monitoring into JMX:" + e);
          }
      }
  
      @PreDestroy
      public void unregisterFromJMX() {
          try {
              platformMBeanServer.unregisterMBean(this.objectName);
          } catch (Exception e) {
              throw new IllegalStateException("Problem during unregistration of Monitoring into JMX:" + e);
          }
      }
  
      @Override
      public void initBlog(String blog) throws JcrBlogException {
          this.blogRepository.initBlog(blog);
      }    
  
      @Override
      public void resetDataStore() throws JcrBlogException {
          this.blogRepository.removeAll();
          this.blogRepository.initializeStorageLayout();
      }
      
      
      
  }