class %Net.MQTT.Tracer
extends %Net.MQTT.Logger
This class allows tracing to performed of the calls made within the paho-c library. One instantiates an instance
of the tracer and attaches an instance of %Net.MQTT.Logger by setting the Logger property. The Tracer class then
delegates log requests to the Logger class. If you don't provide a Logger instance then the default implementation
uses this class (which is itself a logger) to perform the logging with a default implementation that just writes to the console.
• parameter DOMAIN = "%ObjectErrors";
Error Text Domain
• property Logger
as %Net.MQTT.Logger [ InitialExpression = $this ];
Logger delegate, initially is self
• property TraceLevel
as %Integer [ InitialExpression = $$$MQTTCLIENTTRACEFATAL ];
This is the trace level required
• method %OnNew()
as %Status
This callback method is invoked by the %New method to
provide notification that a new instance of an object is being created.
If this method returns an error then the object will not be created.
It is passed the arguments provided in the %New call.
When customizing this method, override the arguments with whatever variables and types you expect to receive from %New().
For example, if you're going to call %New, passing 2 arguments, %OnNew's signature could be:
Method %OnNew(dob as %Date = "", name as %Name = "") as %Status
If instead of returning a %Status code this returns an oref and this oref is a subclass of the current
class then this oref will be the one returned to the caller of %New method.
• method Log(level As %Integer, message As %String)
Minimal implementation, normally would delegate
• method LoggerSet(logger As %Net.MQTT.Logger)
as %Status
Property setter, attach a delegate
• method Start()
as %Status
Start tracing
• method Stop()
as %Status
Stop tracing
• method TraceLevelSet(level As %Integer)
as %Status
Set the trace level (see %Net.MQTT.inc for appropriate values)
