Add LatencyReport for every call

[This is a manual cherry pick from ub-contactsdialer-b-dev.]

This CL tracks latency for all incoming and outgoing calls. We now
measure the following latency values:
 - time for a connection service to add a call to telecom.
 - time for telecom to process a call
 - time for the dialer app to launch and have a call added to it by telecom.
 - time for dialer to check if a call should be blocked.
 - time to show a notification about the call (incoming only)
 - time it took to show the InCallUI (only if HUN wasn't displayed)

Change-Id: I08685d312cbaefc564feb4119350da71df9b9e6c

1 files changed, 145 insertions, 0 deletions

diff --git a/InCallUI/src/com/android/incallui/LatencyReport.java b/InCallUI/src/com/android/incallui/LatencyReport.java
new file mode 100644
index 000000000..655372a8f
--- /dev/null
+++ b/InCallUI/src/com/android/incallui/LatencyReport.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.incallui;
+
+import android.os.Bundle;
+import android.os.SystemClock;
+
+import com.android.incalluibind.ObjectFactory;
+
+/**
+ * Tracks latency information for a call.
+ */
+public class LatencyReport {
+    // The following are hidden constants from android.telecom.TelecomManager.
+    private static final String EXTRA_CALL_CREATED_TIME_MILLIS =
+            "android.telecom.extra.CALL_CREATED_TIME_MILLIS";
+    private static final String EXTRA_CALL_TELECOM_ROUTING_START_TIME_MILLIS =
+            "android.telecom.extra.CALL_TELECOM_ROUTING_START_TIME_MILLIS";
+    private static final String EXTRA_CALL_TELECOM_ROUTING_END_TIME_MILLIS =
+            "android.telecom.extra.CALL_TELECOM_ROUTING_END_TIME_MILLIS";
+
+    public static final long INVALID_TIME = -1;
+
+    private final boolean mWasIncoming;
+
+    // Time elapsed since boot when the call was created by the connection service.
+    private final long mCreatedTimeMillis;
+
+    // Time elapsed since boot when telecom began processing the call.
+    private final long mTelecomRoutingStartTimeMillis;
+
+    // Time elapsed since boot when telecom finished processing the call. This includes things like
+    // looking up contact info and call blocking but before showing any UI.
+    private final long mTelecomRoutingEndTimeMillis;
+
+    // Time elapsed since boot when the call was added to the InCallUi.
+    private final long mCallAddedTimeMillis;
+
+    // Time elapsed since boot when the call was added and call blocking evaluation was completed.
+    private long mCallBlockingTimeMillis = INVALID_TIME;
+
+    // Time elapsed since boot when the call notification was shown.
+    private long mCallNotificationTimeMillis = INVALID_TIME;
+
+    // Time elapsed since boot when the InCallUI was shown.
+    private long mInCallUiShownTimeMillis = INVALID_TIME;
+
+    // Whether the call was shown to the user as a heads up notification instead of a full screen
+    // UI.
+    private boolean mDidDisplayHeadsUpNotification;
+
+    public LatencyReport() {
+        mWasIncoming = false;
+        mCreatedTimeMillis = INVALID_TIME;
+        mTelecomRoutingStartTimeMillis = INVALID_TIME;
+        mTelecomRoutingEndTimeMillis =  INVALID_TIME;
+        mCallAddedTimeMillis = SystemClock.elapsedRealtime();
+    }
+
+    public LatencyReport(android.telecom.Call telecomCall) {
+        mWasIncoming = telecomCall.getState() == android.telecom.Call.STATE_RINGING;
+        Bundle extras = telecomCall.getDetails().getIntentExtras();
+        if (extras == null) {
+            mCreatedTimeMillis = INVALID_TIME;
+            mTelecomRoutingStartTimeMillis = INVALID_TIME;
+            mTelecomRoutingEndTimeMillis =  INVALID_TIME;
+        } else {
+            mCreatedTimeMillis = extras.getLong(EXTRA_CALL_CREATED_TIME_MILLIS, INVALID_TIME);
+            mTelecomRoutingStartTimeMillis = extras.getLong(
+                    EXTRA_CALL_TELECOM_ROUTING_START_TIME_MILLIS, INVALID_TIME);
+            mTelecomRoutingEndTimeMillis = extras.getLong(
+                    EXTRA_CALL_TELECOM_ROUTING_END_TIME_MILLIS, INVALID_TIME);
+        }
+        mCallAddedTimeMillis = SystemClock.elapsedRealtime();
+    }
+
+    public boolean getWasIncoming() {
+        return mWasIncoming;
+    }
+
+    public long getCreatedTimeMillis() {
+        return mCreatedTimeMillis;
+    }
+
+    public long getTelecomRoutingStartTimeMillis() {
+        return mTelecomRoutingStartTimeMillis;
+    }
+
+    public long getTelecomRoutingEndTimeMillis() {
+        return mTelecomRoutingEndTimeMillis;
+    }
+
+    public long getCallAddedTimeMillis() {
+        return mCallAddedTimeMillis;
+    }
+
+    public long getCallBlockingTimeMillis() {
+        return mCallBlockingTimeMillis;
+    }
+
+    public void onCallBlockingDone() {
+        if (mCallBlockingTimeMillis == INVALID_TIME) {
+            mCallBlockingTimeMillis = SystemClock.elapsedRealtime();
+        }
+    }
+
+    public long getCallNotificationTimeMillis() {
+        return mCallNotificationTimeMillis;
+    }
+
+    public void onNotificationShown() {
+        if (mCallNotificationTimeMillis == INVALID_TIME) {
+            mCallNotificationTimeMillis = SystemClock.elapsedRealtime();
+        }
+    }
+
+    public long getInCallUiShownTimeMillis() {
+        return mInCallUiShownTimeMillis;
+    }
+
+    public void onInCallUiShown(boolean forFullScreenIntent) {
+        if (mInCallUiShownTimeMillis == INVALID_TIME) {
+            mInCallUiShownTimeMillis = SystemClock.elapsedRealtime();
+            mDidDisplayHeadsUpNotification = mWasIncoming && !forFullScreenIntent;
+        }
+    }
+
+    public boolean getDidDisplayHeadsUpNotification() {
+        return mDidDisplayHeadsUpNotification;
+    }
+}