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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