(chore): Performance. More maps for performance (#172)

* add more maps for faster lookup * remove log as it is costing too much at startup to load the utils.sdkVersion

Author: thomaszurkan-optimizely

OptimizelySDK/Data Model/ProjectConfig.swift

@@ -32,7 +32,13 @@ class ProjectConfig {
  allExperiments.forEach({map[$0.key] = $0})
  return map
  }()
- 
+
+ lazy var experimentIdMap:[String:Experiment] = {
+ var map = [String:Experiment]()
+ allExperiments.forEach({map[$0.id] = $0})
+ return map
+ }()
+
  lazy var experimentFeatureMap:[String:[String]] = {
  var experimentFeatureMap = [String:[String]]()
  project.featureFlags.forEach({ (ff) in
@@ -55,6 +61,24 @@ class ProjectConfig {
  return eventKeyMap
  }()
 
+ lazy var attributeKeyMap:[String:Attribute] = {
+ var map = [String:Attribute]()
+ project.attributes.forEach({map[$0.key] = $0 })
+ return map
+ }()
+
+ lazy var featureFlagKeyMap:[String:FeatureFlag] = {
+ var map = [String:FeatureFlag]()
+ project.featureFlags.forEach({map[$0.key] = $0 })
+ return map
+ }()
+
+ lazy var rolloutIdMap:[String:Rollout] = {
+ var map = [String:Rollout]()
+ project.rollouts.forEach({map[$0.id] = $0 })
+ return map
+ }()
+
  lazy var allExperiments:[Experiment] = {
  return project.experiments + project.groups.map({$0.experiments}).flatMap({$0})
  }()
@@ -139,7 +163,7 @@ extension ProjectConfig {
  * Get an Experiment object for an Id.
  */
  func getExperiment(id: String) -> Experiment? {
- return allExperiments.filter { $0.id == id }.first
+ return experimentIdMap[id]
  }
 
  /**
@@ -160,14 +184,14 @@ extension ProjectConfig {
  * Get a Feature Flag object for a key.
  */
  func getFeatureFlag(key: String) -> FeatureFlag? {
- return project.featureFlags.filter{ $0.key == key }.first
+ return featureFlagKeyMap[key]
  }
 
  /**
  * Get a Rollout object for an Id.
  */
  func getRollout(id: String) -> Rollout? {
- return project.rollouts.filter{ $0.id == id }.first
+ return rolloutIdMap[id]
  }
 
  /**
@@ -189,7 +213,7 @@ extension ProjectConfig {
  * Get an attribute for a given key.
  */
  func getAttribute(key: String) -> Attribute? {
- return project.attributes.filter{ $0.key == key }.first
+ return attributeKeyMap[key]
  }
 
  /**

OptimizelySDK/Optimizely/OptimizelyClient.swift

@@ -87,7 +87,6 @@ open class OptimizelyClient: NSObject {
  decisionService: DefaultDecisionService(userProfileService: userProfileService),
  notificationCenter: DefaultNotificationCenter())
 
- logger.i("SDK Version: \(Utils.sdkVersion)")
  }
 
  /// Start Optimizely SDK (Asynchronous)