public HttpResponseMessage Browse(int pageIndex = 0, int pageSize = 30, string eventType = null, int severity = -1)
{
EventLogSeverity? actualSeverity = null;
// Is there a severity set?
if (severity >= 0)
{
actualSeverity = (EventLogSeverity)severity;
}
// Get event logs.
IEnumerable<EventLog> eventLogs = EventLogManager.Browse(pageIndex, pageSize, eventType, actualSeverity);
// Work out pagination details.
int rowCount = EventLogManager.BrowseCount(pageIndex, pageSize, eventType, actualSeverity);
int pageCount = (int)Math.Ceiling(rowCount / (double)pageSize);
// Start building meta.
Dictionary<string, dynamic> pagination = new Dictionary<string, dynamic>();
// Add basics.
pagination.Add("Records", rowCount);
pagination.Add("Pages", pageCount);
pagination.Add("CurrentPage", pageIndex);
// Build navigation.
Dictionary<string, string> navigation = new Dictionary<string, string>();
// Parameters passed in not changed by pagination.
string fixedParams = "";
// Page size.
if (pageSize != 30)
{
fixedParams += string.Format("pageSize={0}", pageSize);
}
// Event type.
if (eventType != null)
{
fixedParams += string.Format("eventType={0}", eventType);
}
// Severity.
if (severity != -1)
{
fixedParams += string.Format("eventType={0}", severity);
}
// Is there a next page?
if (pageIndex < pageCount)
{
string nextLink = string.Format("Browse?pageIndex={0}", pageIndex + 1);
if (!string.IsNullOrEmpty(fixedParams))
{
nextLink = string.Format("{0}&{1}", nextLink, fixedParams);
}
navigation.Add("Next", nextLink);
}
// Is there a previous page?
if (pageIndex > 0)
{
string prevLink = string.Format("Browse?pageIndex={0}", pageIndex - 1);
if (!string.IsNullOrEmpty(fixedParams))
{
prevLink = string.Format("{0}&{1}", prevLink, fixedParams);
}
navigation.Add("Previous", prevLink);
}
// Add navigation.
pagination.Add("Navigation", navigation);
Dictionary<string, dynamic> payload = new Dictionary<string, dynamic>();
payload.Add("Data", eventLogs);
payload.Add("Pagination", pagination);
string json = JsonConvert.SerializeObject(payload);
HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK);
response.Content = new StringContent(json, Encoding.UTF8, "application/json");
return response;
}