Refactor Clocks to use MessageBuffer + Logger

This change refactors the Clocks library to use Logger class which is a
wrapper around MessageBuffer. This effort removes references to the
LogBuffer outside of SystemUI core so it can be optimized.

Bug: 276475093
Fix: 280810388
Test: manual
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:5b47044aac7bf5cdce9f0eb0caa1c58b6de548a9)
Merged-In: I663b5c3dcda4f0599e824a06e0187a8bc120d9c0
Change-Id: I663b5c3dcda4f0599e824a06e0187a8bc120d9c0
diff --git a/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/AnimatableClockView.kt b/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/AnimatableClockView.kt
index d208404..b9d6643 100644
--- a/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/AnimatableClockView.kt
+++ b/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/AnimatableClockView.kt
@@ -33,8 +33,8 @@
 import com.android.systemui.animation.GlyphCallback
 import com.android.systemui.animation.TextAnimator
 import com.android.systemui.customization.R
-import com.android.systemui.log.LogBuffer
-import com.android.systemui.log.core.LogLevel.DEBUG
+import com.android.systemui.log.core.Logger
+import com.android.systemui.log.core.MessageBuffer
 import java.io.PrintWriter
 import java.util.Calendar
 import java.util.Locale
@@ -51,7 +51,12 @@
     defStyleAttr: Int = 0,
     defStyleRes: Int = 0
 ) : TextView(context, attrs, defStyleAttr, defStyleRes) {
-    var logBuffer: LogBuffer? = null
+    var messageBuffer: MessageBuffer? = null
+        set(value) {
+            logger = if (value != null) Logger(value, TAG) else null
+        }
+
+    private var logger: Logger? = null
 
     private val time = Calendar.getInstance()
 
@@ -129,7 +134,7 @@
 
     override fun onAttachedToWindow() {
         super.onAttachedToWindow()
-        logBuffer?.log(TAG, DEBUG, "onAttachedToWindow")
+        logger?.d("onAttachedToWindow")
         refreshFormat()
     }
 
@@ -145,39 +150,32 @@
         time.timeInMillis = timeOverrideInMillis ?: System.currentTimeMillis()
         contentDescription = DateFormat.format(descFormat, time)
         val formattedText = DateFormat.format(format, time)
-        logBuffer?.log(TAG, DEBUG,
-                { str1 = formattedText?.toString() },
-                { "refreshTime: new formattedText=$str1" }
-        )
+        logger?.d({ "refreshTime: new formattedText=$str1" }) { str1 = formattedText?.toString() }
         // Setting text actually triggers a layout pass (because the text view is set to
         // wrap_content width and TextView always relayouts for this). Avoid needless
         // relayout if the text didn't actually change.
         if (!TextUtils.equals(text, formattedText)) {
             text = formattedText
-            logBuffer?.log(TAG, DEBUG,
-                    { str1 = formattedText?.toString() },
-                    { "refreshTime: done setting new time text to: $str1" }
-            )
+            logger?.d({ "refreshTime: done setting new time text to: $str1" }) {
+                str1 = formattedText?.toString()
+            }
             // Because the TextLayout may mutate under the hood as a result of the new text, we
             // notify the TextAnimator that it may have changed and request a measure/layout. A
             // crash will occur on the next invocation of setTextStyle if the layout is mutated
             // without being notified TextInterpolator being notified.
             if (layout != null) {
                 textAnimator?.updateLayout(layout)
-                logBuffer?.log(TAG, DEBUG, "refreshTime: done updating textAnimator layout")
+                logger?.d("refreshTime: done updating textAnimator layout")
             }
             requestLayout()
-            logBuffer?.log(TAG, DEBUG, "refreshTime: after requestLayout")
+            logger?.d("refreshTime: after requestLayout")
         }
     }
 
     fun onTimeZoneChanged(timeZone: TimeZone?) {
         time.timeZone = timeZone
         refreshFormat()
-        logBuffer?.log(TAG, DEBUG,
-                { str1 = timeZone?.toString() },
-                { "onTimeZoneChanged newTimeZone=$str1" }
-        )
+        logger?.d({ "onTimeZoneChanged newTimeZone=$str1" }) { str1 = timeZone?.toString() }
     }
 
     @SuppressLint("DrawAllocation")
@@ -191,7 +189,7 @@
         } else {
             animator.updateLayout(layout)
         }
-        logBuffer?.log(TAG, DEBUG, "onMeasure")
+        logger?.d("onMeasure")
     }
 
     override fun onDraw(canvas: Canvas) {
@@ -203,12 +201,12 @@
         } else {
             super.onDraw(canvas)
         }
-        logBuffer?.log(TAG, DEBUG, "onDraw")
+        logger?.d("onDraw")
     }
 
     override fun invalidate() {
         super.invalidate()
-        logBuffer?.log(TAG, DEBUG, "invalidate")
+        logger?.d("invalidate")
     }
 
     override fun onTextChanged(
@@ -218,10 +216,7 @@
             lengthAfter: Int
     ) {
         super.onTextChanged(text, start, lengthBefore, lengthAfter)
-        logBuffer?.log(TAG, DEBUG,
-                { str1 = text.toString() },
-                { "onTextChanged text=$str1" }
-        )
+        logger?.d({ "onTextChanged text=$str1" }) { str1 = text.toString() }
     }
 
     fun setLineSpacingScale(scale: Float) {
@@ -235,7 +230,7 @@
     }
 
     fun animateColorChange() {
-        logBuffer?.log(TAG, DEBUG, "animateColorChange")
+        logger?.d("animateColorChange")
         setTextStyle(
             weight = lockScreenWeight,
             textSize = -1f,
@@ -257,7 +252,7 @@
     }
 
     fun animateAppearOnLockscreen() {
-        logBuffer?.log(TAG, DEBUG, "animateAppearOnLockscreen")
+        logger?.d("animateAppearOnLockscreen")
         setTextStyle(
             weight = dozingWeight,
             textSize = -1f,
@@ -283,7 +278,7 @@
         if (isAnimationEnabled && textAnimator == null) {
             return
         }
-        logBuffer?.log(TAG, DEBUG, "animateFoldAppear")
+        logger?.d("animateFoldAppear")
         setTextStyle(
             weight = lockScreenWeightInternal,
             textSize = -1f,
@@ -310,7 +305,7 @@
             // Skip charge animation if dozing animation is already playing.
             return
         }
-        logBuffer?.log(TAG, DEBUG, "animateCharge")
+        logger?.d("animateCharge")
         val startAnimPhase2 = Runnable {
             setTextStyle(
                 weight = if (isDozing()) dozingWeight else lockScreenWeight,
@@ -334,7 +329,7 @@
     }
 
     fun animateDoze(isDozing: Boolean, animate: Boolean) {
-        logBuffer?.log(TAG, DEBUG, "animateDoze")
+        logger?.d("animateDoze")
         setTextStyle(
             weight = if (isDozing) dozingWeight else lockScreenWeight,
             textSize = -1f,
@@ -453,10 +448,7 @@
             isSingleLineInternal && !use24HourFormat -> Patterns.sClockView12
             else -> DOUBLE_LINE_FORMAT_12_HOUR
         }
-        logBuffer?.log(TAG, DEBUG,
-                { str1 = format?.toString() },
-                { "refreshFormat format=$str1" }
-        )
+        logger?.d({ "refreshFormat format=$str1" }) { str1 = format?.toString() }
 
         descFormat = if (use24HourFormat) Patterns.sClockView24 else Patterns.sClockView12
         refreshTime()
diff --git a/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/ClockRegistry.kt b/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/ClockRegistry.kt
index 12f7452..d65edae 100644
--- a/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/ClockRegistry.kt
+++ b/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/ClockRegistry.kt
@@ -23,10 +23,11 @@
 import android.provider.Settings
 import android.util.Log
 import androidx.annotation.OpenForTesting
-import com.android.systemui.log.LogBuffer
 import com.android.systemui.log.LogMessageImpl
 import com.android.systemui.log.core.LogLevel
 import com.android.systemui.log.core.LogMessage
+import com.android.systemui.log.core.Logger
+import com.android.systemui.log.core.MessageBuffer
 import com.android.systemui.log.core.MessageInitializer
 import com.android.systemui.log.core.MessagePrinter
 import com.android.systemui.plugins.ClockController
@@ -75,7 +76,7 @@
 
 private val TMP_MESSAGE: LogMessage by lazy { LogMessageImpl.Factory.create() }
 
-private inline fun LogBuffer?.tryLog(
+private inline fun Logger?.tryLog(
     tag: String,
     level: LogLevel,
     messageInitializer: MessageInitializer,
@@ -84,7 +85,7 @@
 ) {
     if (this != null) {
         // Wrap messagePrinter to convert it from crossinline to noinline
-        this.log(tag, level, messageInitializer, messagePrinter, ex)
+        this.log(level, messagePrinter, ex, messageInitializer)
     } else {
         messageInitializer(TMP_MESSAGE)
         val msg = messagePrinter(TMP_MESSAGE)
@@ -110,7 +111,7 @@
     val handleAllUsers: Boolean,
     defaultClockProvider: ClockProvider,
     val fallbackClockId: ClockId = DEFAULT_CLOCK_ID,
-    val logBuffer: LogBuffer? = null,
+    messageBuffer: MessageBuffer? = null,
     val keepAllLoaded: Boolean,
     subTag: String,
     var isTransitClockEnabled: Boolean = false,
@@ -124,6 +125,7 @@
         fun onAvailableClocksChanged() {}
     }
 
+    private val logger: Logger? = if (messageBuffer != null) Logger(messageBuffer, TAG) else null
     private val availableClocks = ConcurrentHashMap<ClockId, ClockInfo>()
     private val clockChangeListeners = mutableListOf<ClockChangeListener>()
     private val settingObserver =
@@ -150,7 +152,7 @@
 
                 val knownClocks = KNOWN_PLUGINS.get(manager.getPackage())
                 if (knownClocks == null) {
-                    logBuffer.tryLog(
+                    logger.tryLog(
                         TAG,
                         LogLevel.WARNING,
                         { str1 = manager.getPackage() },
@@ -159,7 +161,7 @@
                     return true
                 }
 
-                logBuffer.tryLog(
+                logger.tryLog(
                     TAG,
                     LogLevel.INFO,
                     { str1 = manager.getPackage() },
@@ -176,7 +178,7 @@
                         }
 
                     if (manager != info.manager) {
-                        logBuffer.tryLog(
+                        logger.tryLog(
                             TAG,
                             LogLevel.ERROR,
                             { str1 = id },
@@ -216,7 +218,7 @@
                         }
 
                     if (manager != info.manager) {
-                        logBuffer.tryLog(
+                        logger.tryLog(
                             TAG,
                             LogLevel.ERROR,
                             { str1 = id },
@@ -244,7 +246,7 @@
                     val id = clock.clockId
                     val info = availableClocks[id]
                     if (info?.manager != manager) {
-                        logBuffer.tryLog(
+                        logger.tryLog(
                             TAG,
                             LogLevel.ERROR,
                             { str1 = id },
@@ -319,7 +321,7 @@
 
                 ClockSettings.deserialize(json)
             } catch (ex: Exception) {
-                logBuffer.tryLog(TAG, LogLevel.ERROR, {}, { "Failed to parse clock settings" }, ex)
+                logger.tryLog(TAG, LogLevel.ERROR, {}, { "Failed to parse clock settings" }, ex)
                 null
             }
         settings = result
@@ -348,7 +350,7 @@
                 )
             }
         } catch (ex: Exception) {
-            logBuffer.tryLog(TAG, LogLevel.ERROR, {}, { "Failed to set clock settings" }, ex)
+            logger.tryLog(TAG, LogLevel.ERROR, {}, { "Failed to set clock settings" }, ex)
         }
         settings = value
     }
@@ -508,9 +510,9 @@
     }
 
     private fun onConnected(clockId: ClockId) {
-        logBuffer.tryLog(TAG, LogLevel.DEBUG, { str1 = clockId }, { "Connected $str1" })
+        logger.tryLog(TAG, LogLevel.DEBUG, { str1 = clockId }, { "Connected $str1" })
         if (currentClockId == clockId) {
-            logBuffer.tryLog(
+            logger.tryLog(
                 TAG,
                 LogLevel.INFO,
                 { str1 = clockId },
@@ -520,10 +522,10 @@
     }
 
     private fun onLoaded(clockId: ClockId) {
-        logBuffer.tryLog(TAG, LogLevel.DEBUG, { str1 = clockId }, { "Loaded $str1" })
+        logger.tryLog(TAG, LogLevel.DEBUG, { str1 = clockId }, { "Loaded $str1" })
 
         if (currentClockId == clockId) {
-            logBuffer.tryLog(
+            logger.tryLog(
                 TAG,
                 LogLevel.INFO,
                 { str1 = clockId },
@@ -534,10 +536,10 @@
     }
 
     private fun onUnloaded(clockId: ClockId) {
-        logBuffer.tryLog(TAG, LogLevel.DEBUG, { str1 = clockId }, { "Unloaded $str1" })
+        logger.tryLog(TAG, LogLevel.DEBUG, { str1 = clockId }, { "Unloaded $str1" })
 
         if (currentClockId == clockId) {
-            logBuffer.tryLog(
+            logger.tryLog(
                 TAG,
                 LogLevel.WARNING,
                 { str1 = clockId },
@@ -548,10 +550,10 @@
     }
 
     private fun onDisconnected(clockId: ClockId) {
-        logBuffer.tryLog(TAG, LogLevel.DEBUG, { str1 = clockId }, { "Disconnected $str1" })
+        logger.tryLog(TAG, LogLevel.DEBUG, { str1 = clockId }, { "Disconnected $str1" })
 
         if (currentClockId == clockId) {
-            logBuffer.tryLog(
+            logger.tryLog(
                 TAG,
                 LogLevel.WARNING,
                 { str1 = clockId },
@@ -597,22 +599,17 @@
         if (isEnabled && clockId.isNotEmpty()) {
             val clock = createClock(clockId)
             if (clock != null) {
-                logBuffer.tryLog(
-                    TAG,
-                    LogLevel.INFO,
-                    { str1 = clockId },
-                    { "Rendering clock $str1" }
-                )
+                logger.tryLog(TAG, LogLevel.INFO, { str1 = clockId }, { "Rendering clock $str1" })
                 return clock
             } else if (availableClocks.containsKey(clockId)) {
-                logBuffer.tryLog(
+                logger.tryLog(
                     TAG,
                     LogLevel.WARNING,
                     { str1 = clockId },
                     { "Clock $str1 not loaded; using default" }
                 )
             } else {
-                logBuffer.tryLog(
+                logger.tryLog(
                     TAG,
                     LogLevel.ERROR,
                     { str1 = clockId },
diff --git a/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/DefaultClockController.kt b/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/DefaultClockController.kt
index e557c8e..e539c95 100644
--- a/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/DefaultClockController.kt
+++ b/packages/SystemUI/customization/src/com/android/systemui/shared/clocks/DefaultClockController.kt
@@ -24,7 +24,7 @@
 import android.widget.FrameLayout
 import androidx.annotation.VisibleForTesting
 import com.android.systemui.customization.R
-import com.android.systemui.log.LogBuffer
+import com.android.systemui.log.core.MessageBuffer
 import com.android.systemui.plugins.ClockAnimations
 import com.android.systemui.plugins.ClockConfig
 import com.android.systemui.plugins.ClockController
@@ -108,10 +108,10 @@
 
         override val config = ClockFaceConfig()
 
-        override var logBuffer: LogBuffer?
-            get() = view.logBuffer
+        override var messageBuffer: MessageBuffer?
+            get() = view.messageBuffer
             set(value) {
-                view.logBuffer = value
+                view.messageBuffer = value
             }
 
         override var animations: DefaultClockAnimations = DefaultClockAnimations(view, 0f, 0f)
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/ClockProviderPlugin.kt b/packages/SystemUI/plugin/src/com/android/systemui/plugins/ClockProviderPlugin.kt
index 537b7a4..d962732 100644
--- a/packages/SystemUI/plugin/src/com/android/systemui/plugins/ClockProviderPlugin.kt
+++ b/packages/SystemUI/plugin/src/com/android/systemui/plugins/ClockProviderPlugin.kt
@@ -18,7 +18,7 @@
 import android.graphics.drawable.Drawable
 import android.view.View
 import com.android.internal.annotations.Keep
-import com.android.systemui.log.LogBuffer
+import com.android.systemui.log.core.MessageBuffer
 import com.android.systemui.plugins.annotations.ProvidesInterface
 import java.io.PrintWriter
 import java.util.Locale
@@ -95,7 +95,7 @@
     val animations: ClockAnimations
 
     /** Some clocks may log debug information */
-    var logBuffer: LogBuffer?
+    var messageBuffer: MessageBuffer?
 }
 
 /** Events that should call when various rendering parameters change */
diff --git a/packages/SystemUI/proguard_common.flags b/packages/SystemUI/proguard_common.flags
index 02d5510..3194815 100644
--- a/packages/SystemUI/proguard_common.flags
+++ b/packages/SystemUI/proguard_common.flags
@@ -62,15 +62,12 @@
 -keep class ** extends androidx.preference.PreferenceFragment
 -keep class com.android.systemui.tuner.*
 
-# The plugins, log & common subpackages act as shared libraries that might be referenced in
+# The plugins and core log subpackages act as shared libraries that might be referenced in
 # dynamically-loaded plugin APKs.
 -keep class com.android.systemui.plugins.** {
     *;
 }
--keep class com.android.systemui.log.** {
-    *;
-}
--keep class com.android.systemui.common.** {
+-keep class com.android.systemui.log.core.** {
     *;
 }
 -keep class com.android.systemui.fragments.FragmentService$FragmentCreator {
diff --git a/packages/SystemUI/src/com/android/keyguard/ClockEventController.kt b/packages/SystemUI/src/com/android/keyguard/ClockEventController.kt
index 91937af..4e0e8d0 100644
--- a/packages/SystemUI/src/com/android/keyguard/ClockEventController.kt
+++ b/packages/SystemUI/src/com/android/keyguard/ClockEventController.kt
@@ -91,9 +91,9 @@
             field = value
             if (value != null) {
                 smallLogBuffer?.log(TAG, DEBUG, {}, { "New Clock" })
-                value.smallClock.logBuffer = smallLogBuffer
+                value.smallClock.messageBuffer = smallLogBuffer
                 largeLogBuffer?.log(TAG, DEBUG, {}, { "New Clock" })
-                value.largeClock.logBuffer = largeLogBuffer
+                value.largeClock.messageBuffer = largeLogBuffer
 
                 value.initialize(resources, dozeAmount, 0f)