private void ReadConfigurationSettings()
{
// Read sql database connectionstring setting
sqlDatabaseConnectionString = CloudConfigurationHelper.GetSetting(SqlDatabaseConnectionStringSetting);
TraceEventSource.Log.TraceInfo(string.Format(RoleEnvironmentSettingFormat,
SqlDatabaseConnectionStringSetting,
sqlDatabaseConnectionString));
// Read insert stored procedure setting
insertStoredProcedure = CloudConfigurationHelper.GetSetting(InsertStoredProcedureSetting);
TraceEventSource.Log.TraceInfo(string.Format(RoleEnvironmentSettingFormat,
InsertStoredProcedureSetting,
insertStoredProcedure));
// Read storage account connectionstring setting
storageAccountConnectionString = CloudConfigurationHelper.GetSetting(StorageAccountConnectionStringSetting);
TraceEventSource.Log.TraceInfo(string.Format(RoleEnvironmentSettingFormat,
StorageAccountConnectionStringSetting,
storageAccountConnectionString));
// Read service bus connectionstring setting
serviceBusConnectionString = CloudConfigurationHelper.GetSetting(ServiceBusConnectionStringSetting);
TraceEventSource.Log.TraceInfo(string.Format(RoleEnvironmentSettingFormat,
ServiceBusConnectionStringSetting,
serviceBusConnectionString));
// Read event hub name setting
eventHubName = CloudConfigurationHelper.GetSetting(EventHubNameSetting);
TraceEventSource.Log.TraceInfo(string.Format(RoleEnvironmentSettingFormat,
ServiceBusConnectionStringSetting,
serviceBusConnectionString));
// Read event consumer group name setting
consumerGroupName = CloudConfigurationHelper.GetSetting(ConsumerGroupNameSetting);
TraceEventSource.Log.TraceInfo(string.Format(RoleEnvironmentSettingFormat,
ServiceBusConnectionStringSetting,
serviceBusConnectionString));
}
/// <summary>
/// Occurs before a change to the service configuration is applied to the running instances of a role.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">presents the arguments for the Changing event, which occurs before a configuration change is applied to a role instance. </param>
private static void RoleEnvironment_Changing(object sender, RoleEnvironmentChangingEventArgs e)
{
try
{
// TraceIn
TraceEventSource.Log.TraceIn();
// Get the list of configuration setting changes
var settingChanges = e.Changes.OfType <RoleEnvironmentConfigurationSettingChange>();
foreach (var settingChange in settingChanges)
{
var value = CloudConfigurationHelper.GetSetting(settingChange.ConfigurationSettingName);
TraceEventSource.Log.TraceInfo(string.Format(RoleEnvironmentConfigurationSettingChangingFormat,
settingChange.ConfigurationSettingName,
string.IsNullOrEmpty(value) ? string.Empty : value));
}
// Get the list of configuration changes
var topologyChanges = e.Changes.OfType <RoleEnvironmentTopologyChange>();
foreach (var roleName in topologyChanges.Select(topologyChange => topologyChange.RoleName))
{
TraceEventSource.Log.TraceInfo(string.Format(RoleEnvironmentTopologyChangingFormat,
string.IsNullOrEmpty(roleName) ? Unknown : roleName));
if (string.IsNullOrEmpty(roleName))
{
continue;
}
var role = RoleEnvironment.Roles[roleName];
if (role == null)
{
continue;
}
TraceEventSource.Log.TraceInfo(string.Format(RoleInstanceCountFormat, roleName, role.Instances.Count));
foreach (var roleInstance in role.Instances)
{
TraceEventSource.Log.TraceInfo(string.Format(RoleInstanceIdFormat, roleName, roleInstance.Id));
TraceEventSource.Log.TraceInfo(string.Format(RoleInstanceEndpointCountFormat, roleName, roleInstance.InstanceEndpoints.Count));
foreach (var instanceEndpoint in roleInstance.InstanceEndpoints)
{
TraceEventSource.Log.TraceInfo(string.Format(RoleInstanceEndpointFormat,
roleName,
instanceEndpoint.Key,
instanceEndpoint.Value.Protocol,
instanceEndpoint.Value.IPEndpoint.Address,
instanceEndpoint.Value.IPEndpoint.Port));
}
}
}
}
catch (Exception ex)
{
// Trace Exception
TraceEventSource.Log.TraceError(ex.Message, ex.InnerException?.Message ?? string.Empty);
}
finally
{
// TraceOut
TraceEventSource.Log.TraceOut();
}
}