--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/de/mpiwg/itgroup/diva/rest/RestInterface.java	Wed Oct 29 14:00:28 2014 +0000
@@ -0,0 +1,73 @@
+package de.mpiwg.itgroup.diva.rest;
+
+import javax.faces.FactoryFinder;
+import javax.faces.context.FacesContext;
+import javax.faces.context.FacesContextFactory;
+import javax.faces.lifecycle.Lifecycle;
+import javax.faces.lifecycle.LifecycleFactory;
+import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.mpi.openmind.cache.WrapperService;
+
+import de.mpiwg.itgroup.ismi.entry.beans.ApplicationBean;
+import de.mpiwg.itgroup.ismi.entry.beans.SessionBean;
+
+public abstract class RestInterface {
+	
+	public static String APP_BEAN = "ApplicationBean1";
+	public static String SESSION_BEAN = "Session";
+	
+	
+	protected boolean userCanEdit(HttpServletRequest request, HttpServletResponse response){
+		SessionBean session = getSessionBean(request, response);
+		return session.isCanEdit();
+		
+	}
+	
+	public SessionBean getSessionBean(HttpServletRequest request,
+			HttpServletResponse response){
+		return (SessionBean)getSessionBean(SESSION_BEAN, request, response);
+	}
+	
+	public WrapperService getWrapper(HttpServletRequest request,
+			HttpServletResponse response){
+		return getAppBean(request, response).getWrapper();
+	}
+	
+	public ApplicationBean getAppBean(HttpServletRequest request, HttpServletResponse response) {
+		ApplicationBean appBean = (ApplicationBean)getApplicationBean(APP_BEAN, request, response);
+		
+		if(appBean == null){
+			appBean = new ApplicationBean();
+			getFacesContext(request, response).getCurrentInstance().getExternalContext().getApplicationMap().put(APP_BEAN, appBean);			
+		}
+		return appBean; 
+	}	
+	
+	private Object getApplicationBean(String bean, HttpServletRequest request,
+			HttpServletResponse response) {
+		return getFacesContext(request, response).getExternalContext().getApplicationMap().get(bean);
+	}
+	
+	private Object getSessionBean(String bean, HttpServletRequest request, HttpServletResponse response) {
+		return getFacesContext(request, response).getExternalContext().getSessionMap().get(bean);
+	}
+
+	
+	public FacesContext getFacesContext(HttpServletRequest request,
+			HttpServletResponse response) {
+		ServletContext servletContext = ((HttpServletRequest) request)
+				.getSession().getServletContext();
+		FacesContextFactory contextFactory = (FacesContextFactory) FactoryFinder
+				.getFactory(FactoryFinder.FACES_CONTEXT_FACTORY);
+		LifecycleFactory lifecycleFactory = (LifecycleFactory) FactoryFinder
+				.getFactory(FactoryFinder.LIFECYCLE_FACTORY);
+		Lifecycle lifecycle = lifecycleFactory
+				.getLifecycle(LifecycleFactory.DEFAULT_LIFECYCLE);
+		return contextFactory.getFacesContext(servletContext, request,
+				response, lifecycle);
+	}
+	
+}