public override void Dispose(bool disposing)
{
// Always free unmanaged objects, but conditionally free managed objets if this is being
// called from Dispose() (as opposed a finalizer, currently not implemented)
if (disposing)
{
if (log != null)
{
log.Dispose();
log = null;
}
}
lock (this.vwLock)
{
if (vw != null)
{
vw.Dispose();
vw = null;
}
if (vwJson != null)
{
vwJson.Dispose();
vwJson = null;
}
vwDisposed = true;
}
base.Dispose();
}
public DecisionServiceLocal(string vwArgs, int modelUpdateInterval, TimeSpan expUnit)
: base(
new DecisionServiceConfiguration("")
{
OfflineMode = true,
OfflineApplicationID = Guid.NewGuid().ToString(),
DevelopmentMode = false
},
new ApplicationClientMetadata
{
TrainArguments = vwArgs,
InitialExplorationEpsilon = 1f
},
new VWExplorer <TContext>(null, JsonTypeInspector.Default, false))
{
this.log = new InMemoryLogger <TContext, int[]>(expUnit);
this.Recorder = log;
this.vw = new VowpalWabbit <TContext>(
new VowpalWabbitSettings(vwArgs)
{
TypeInspector = JsonTypeInspector.Default,
EnableStringExampleGeneration = this.config.DevelopmentMode,
EnableStringFloatCompact = true
}
);
this.ModelUpdateInterval = modelUpdateInterval;
}
public DecisionServiceLocal(
string vwArgs,
int modelUpdateInterval,
TimeSpan expUnit)
: base(
new DecisionServiceConfiguration("")
{
OfflineMode = true,
OfflineApplicationID = Guid.NewGuid().ToString(),
DevelopmentMode = false
},
new ApplicationClientMetadata
{
TrainArguments = vwArgs,
InitialExplorationEpsilon = 1f
},
// String (json) contexts require a different type of internal policy
((typeof(TContext) == typeof(string)) ?
new VWJsonExplorer(null, false) as IContextMapper <TContext, ActionProbability[]> :
new VWExplorer <TContext>(null, JsonTypeInspector.Default, false)))
{
this.log = new InMemoryLogger <TContext, int[]>(expUnit);
this.Recorder = log;
// String (json) contexts are handled via a non-generic VW instance, whereas all other
// context types use a generic VW instance
if (typeof(TContext) == typeof(string))
{
this.vwJson = new VowpalWabbit(
new VowpalWabbitSettings(vwArgs)
{
TypeInspector = JsonTypeInspector.Default,
EnableStringExampleGeneration = this.config.DevelopmentMode,
EnableStringFloatCompact = true
}
);
}
else
{
this.vw = new VowpalWabbit <TContext>(
new VowpalWabbitSettings(vwArgs)
{
TypeInspector = JsonTypeInspector.Default,
EnableStringExampleGeneration = this.config.DevelopmentMode,
EnableStringFloatCompact = true
}
);
}
this.ModelUpdateInterval = modelUpdateInterval;
}
