Can I get some advice on this ? Is it necessary to put a e.printStackTrace() if an error is caught at JSP level ?
Hemika Kodikara Software Engineer WSO2 Inc. lean . enterprise . middleware http://wso2.com Mobile : +94777688882 On Mon, Jan 26, 2015 at 11:38 AM, Hemika Kodikara <[email protected]> wrote: > Hi All, > > What is the correct way to handle an exception when it comes to JSP pages ? > > Currently I have the following AJAX call on a JS file. This is called from > another JSP file. > > function updatePermissions() { > var callback = > { > success:function(o) { > if (o.responseText !== undefined) { > if (o.responseText.indexOf("Error") > -1) { > CARBON.showErrorDialog("" + o.responseText, function() > { > location.href = "../queues/queue_details.jsp" > }); > } else { > CARBON.showInfoDialog("" + o.responseText, function() { > location.href = "../queues/queue_details.jsp" > }); > } > > } > }, > failure:function(o) { > if (o.responseText !== undefined) { > alert("Error " + o.status + "\n Following is the message > from the server.\n" + o.responseText); > } > } > }; > var request = YAHOO.util.Connect.asyncRequest('POST', > "update_queue_role_permissions_ajaxprocessor.jsp", callback); > } > > > The call is going to the the following file > (update_queue_role_permissions_ajaxprocessor.jsp) > update_queue_role_permissions_ajaxprocessor.jsp > ======================================= > <% > // some code > QueueRolePermission[] queueRolePermissions = new > QueueRolePermission[queueRolePermissionArrayList.size()]; > try { > // some code > stub.updatePermission(queue, > queueRolePermissionArrayList.toArray(queueRolePermissions)); > message = "Queue added successfully"; > } catch (AndesAdminServiceBrokerManagerAdminException e) { > // what to do here ? > message = "Error in adding/updating permissions : " + > e.getMessage(); > } > %><%=message%> > > > Concerns : > 1. When an exception is caught, should the exception be logged at the JSP > catch block or logged at where it is occurring at the higher level of code > where the exception was thrown ? > > 2. If the exception is being logged at the JSP level, should it use log4j > or an e.printStackTrace() ? e.printStackTrace usage at [1]. > > [1] - https://docs.wso2.com/display/Governance460/Transition+UI+Sample > > Regards, > Hemika > > Hemika Kodikara > Software Engineer > WSO2 Inc. > lean . enterprise . middleware > http://wso2.com > > Mobile : +94777688882 >
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