LMS-1904 using Utils to get sessionID constant

SVN: 19026

screening/source/java/ch/systemsx/cisd/openbis/dss/generic/server/AbstractImagesDownloadServlet.java

@@ -75,7 +75,7 @@ abstract class AbstractImagesDownloadServlet extends AbstractDatasetDownloadServ
 
         private RequestParams(HttpServletRequest request)
         {
-            this.sessionId = getParam(request, SESSION_ID_PARAM);
+            this.sessionId = getParam(request, Utils.SESSION_ID_PARAM);
 
             String displayModeText = request.getParameter(DISPLAY_MODE_PARAM);
             String displayMode = displayModeText == null ? "" : displayModeText;

screening/source/java/ch/systemsx/cisd/openbis/dss/generic/server/AbstractTabularDataGraphServlet.java

@@ -76,7 +76,7 @@ public abstract class AbstractTabularDataGraphServlet extends AbstractDatasetDow
 
         public RequestParams(HttpServletRequest request)
         {
-            sessionId = getRequiredParameter(request, SESSION_ID_PARAM);
+            sessionId = getRequiredParameter(request, Utils.SESSION_ID_PARAM);
             datasetCode = getRequiredParameter(request, DATASET_CODE_PARAM);
             filePathOrNull = getOptionalParameter(request, FILE_PATH_PARAM);
             graphName = getRequiredParameter(request, GRAPH_TYPE_CODE);