1 files changed, 47 insertions, 0 deletions
diff --git a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/helper/SessionHelper.java b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/helper/SessionHelper.java
new file mode 100644
index 0000000..e3c8269
--- /dev/null
+++ b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/helper/SessionHelper.java
@@ -0,0 +1,47 @@
+/**
+ * 
+ */
+package at.gv.egiz.pdfas.web.helper;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.pdfas.exceptions.web.SessionExpiredException;
+import at.gv.egiz.pdfas.web.session.SessionAttributes;
+
+/**
+ * @author wprinz
+ * 
+ */
+public class SessionHelper
+{
+  /**
+   * The log.
+   */
+  private static Log log = LogFactory.getLog(SessionHelper.class);
+
+  public static Object getSession(HttpServletRequest request) throws SessionExpiredException
+  {
+
+    HttpSession session = request.getSession(false);
+    if (session == null)
+    {
+      String msg = "There is no session associated with this request."; //$NON-NLS-1$
+      log.error(msg);
+      throw new SessionExpiredException(msg);
+    }
+
+    Object sessionObject = session.getAttribute(SessionAttributes.ATTRIBUTE_SESSION_INFORMATION);
+    if (sessionObject == null)
+    {
+      String msg = "Unable to find session data in session " + session.getId();
+      log.error(msg);
+      throw new SessionExpiredException(msg);
+    }
+
+    return sessionObject;
+  }
+}