add hostname in the initContext (#276)

Co-authored-by: Abhijit Wakchaure <[email protected]>

activity/activity.go

@@ -7,10 +7,10 @@ import (
 
 // Activity is an interface for defining a custom Activity Execution
 type Activity interface {
-	
+
 	// Metadata returns the metadata of the activity
 	Metadata() *Metadata
-	
+
 	// Eval is called when an Activity is being evaluated.  Returning true indicates
 	// that the task is done.
 	Eval(ctx Context) (done bool, err error)
@@ -19,19 +19,21 @@ type Activity interface {
 type Factory func(ctx InitContext) (Activity, error)
 
 type InitContext interface {
-	
+
 	// Settings
 	Settings() map[string]interface{}
-	
+
 	// MapperFactory gets the mapper factory associated with the activity host
 	MapperFactory() mapper.Factory
-	
+
 	// Logger logger to using during initialization, activity implementations should not
 	// keep a reference to this
 	Logger() log.Logger
-	
-	// Name returns name of the activity
+
+	// Name returns name of the activity / task
 	Name() string
+	// HostName returns name of the flow / task host
+	HostName() string
 }
 
 type Details struct {

api/support.go

@@ -195,6 +195,10 @@ func (ctx *initCtx) Name() string {
 	return ""
 }
 
+func (ctx *initCtx) HostName() string {
+	return ""
+}
+
 var activityLogger = log.ChildLogger(log.RootLogger(), "activity")
 
 // EvalActivity evaluates the specified activity using the provided inputs

support/test/context.go

@@ -88,6 +88,7 @@ type TestActivityInitContext struct {
 	settings map[string]interface{}
 	factory  mapper.Factory
 	name     string
+	hostName string
 }
 
 func (ic *TestActivityInitContext) Settings() map[string]interface{} {
@@ -101,10 +102,15 @@ func (ic *TestActivityInitContext) MapperFactory() mapper.Factory {
 func (ic *TestActivityInitContext) Logger() log.Logger {
 	return logger
 }
+
 func (ic *TestActivityInitContext) Name() string {
 	return ic.name
 }
 
+func (ic *TestActivityInitContext) HostName() string {
+	return ic.hostName
+}
+
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 // TestActivityHost