Commit 6639bb65 authored Aug 13, 2009 by Christian Sonntag Committed by Christian Sonntag Aug 13, 2009

Add a more compact representation of usage stats.

We are replaceing the package name in the activity name with a * iff the activity is in the
same package, otherwise the activity name is pritned out in full.
This small change will remove a lot of bytes (in the order of kilobytes for a real log) from the logged data on the network and downstream processing,
since the package name is repeated in almost all cases.

 An exampe of the new format is here:
 DUMP OF SERVICE usagestats:
 D:4,20090813
 P:com.android.launcher,4,155456
 A:*.Launcher,4,0,0,0,0,0,0,0,0,0,2
 P:com.android.browser,1,6724
 A:*.BrowserActivity,1,0,0,0,0,0,0,0,0,0,0
 A:*.CombinedBookmarkHistoryActivity,1,0,0,0,0,0,0,0,0,0,1
 P:com.google.android.apps.maps,1,2219
 A:com.google.android.maps.MapsActivity,1,0,0,0,0,0,0,0,0,0,0
 P:com.android.contacts,1,0
 A:*.DialtactsActivity,1,0,0,0,0,0,0,0,0,0,1

parent 0867e691

services/java/com/android/server/am/UsageStatsService.java

100755 → 100644

+8 −1

Original line number	Diff line number	Diff line
		@@ -695,7 +695,14 @@ public final class UsageStatsService extends IUsageStats.Stub {
		if (NC > 0) {
		for (Map.Entry<String, TimeStats> ent : pus.mLaunchTimes.entrySet()) {
		sb.append("A:");
		sb.append(ent.getKey());
		String activity = ent.getKey();
		if (activity.startsWith(pkgName)) {
		sb.append('*');
		sb.append(activity.substring(
		pkgName.length(), activity.length()));
		} else {
		sb.append(activity);
		}
		TimeStats times = ent.getValue();
		sb.append(',');
		sb.append(times.count);