ConnectivityMetricsLogger subclass for IpConnectivity (623ab7d7) · Commits · e / os / android_frameworks_base

core/java/android/net/ConnectivityMetricsLogger.java

+28 −17

Original line number	Diff line number	Diff line
		@@ -37,7 +37,6 @@ public class ConnectivityMetricsLogger {
		public static final int COMPONENT_TAG_WIFI = 2;
		public static final int COMPONENT_TAG_TELECOM = 3;
		public static final int COMPONENT_TAG_TELEPHONY = 4;

		public static final int NUMBER_OF_COMPONENTS = 5;

		// Event Tag
		@@ -45,16 +44,28 @@ public class ConnectivityMetricsLogger {

		public static final String DATA_KEY_EVENTS_COUNT = "count";

		private IConnectivityMetricsLogger mService;

		private long mServiceUnblockedTimestampMillis = 0;
		private int mNumSkippedEvents = 0;
		/** {@hide} */ protected final IConnectivityMetricsLogger mService;
		/** {@hide} */ protected volatile long mServiceUnblockedTimestampMillis;
		private int mNumSkippedEvents;

		public ConnectivityMetricsLogger() {
		mService = IConnectivityMetricsLogger.Stub.asInterface(ServiceManager.getService(
		CONNECTIVITY_METRICS_LOGGER_SERVICE));
		}

		/**
		* Log a ConnectivityMetricsEvent.
		*
		* This method keeps track of skipped events when MetricsLoggerService throttles input events.
		* It skips logging when MetricsLoggerService is active. When throttling ends, it logs a
		* meta-event containing the number of events dropped. It is not safe to call this method
		* concurrently from different threads.
		*
		* @param timestamp is the epoch timestamp of the event in ms.
		* @param componentTag is the COMPONENT_* constant the event belongs to.
		* @param eventTag is an event type constant whose meaning is specific to the component tag.
		* @param data is a Parcelable instance representing the event.
		*/
		public void logEvent(long timestamp, int componentTag, int eventTag, Parcelable data) {
		if (mService == null) {
		if (DBG) {
		@@ -104,7 +115,7 @@ public class ConnectivityMetricsLogger {
		}
		}
		} catch (RemoteException e) {
		Log.e(TAG, "Error logging event " + e.getMessage());
		Log.e(TAG, "Error logging event", e);
		}
		}

		@@ -121,8 +132,8 @@ public class ConnectivityMetricsLogger {
		public ConnectivityMetricsEvent[] getEvents(ConnectivityMetricsEvent.Reference reference) {
		try {
		return mService.getEvents(reference);
		} catch (RemoteException ex) {
		Log.e(TAG, "IConnectivityMetricsLogger.getEvents: " + ex);
		} catch (RemoteException e) {
		Log.e(TAG, "IConnectivityMetricsLogger.getEvents", e);
		return null;
		}
		}
		@@ -133,8 +144,8 @@ public class ConnectivityMetricsLogger {
		public boolean register(PendingIntent newEventsIntent) {
		try {
		return mService.register(newEventsIntent);
		} catch (RemoteException ex) {
		Log.e(TAG, "IConnectivityMetricsLogger.register: " + ex);
		} catch (RemoteException e) {
		Log.e(TAG, "IConnectivityMetricsLogger.register", e);
		return false;
		}
		}
		@@ -142,8 +153,8 @@ public class ConnectivityMetricsLogger {
		public boolean unregister(PendingIntent newEventsIntent) {
		try {
		mService.unregister(newEventsIntent);
		} catch (RemoteException ex) {
		Log.e(TAG, "IConnectivityMetricsLogger.unregister: " + ex);
		} catch (RemoteException e) {
		Log.e(TAG, "IConnectivityMetricsLogger.unregister", e);
		return false;
		}

core/java/android/net/metrics/IpConnectivityEvent.java

+5 −12

Original line number	Diff line number	Diff line
		@@ -16,20 +16,13 @@

		package android.net.metrics;

		import android.net.ConnectivityMetricsLogger;
		import android.os.Parcel;
		import android.os.Parcelable;

		/**
		* {@hide}
		*/
		/** {@hide} */
		public abstract class IpConnectivityEvent {
		private static final int COMPONENT_TAG = ConnectivityMetricsLogger.COMPONENT_TAG_CONNECTIVITY;

		private static final ConnectivityMetricsLogger sMetricsLogger = new ConnectivityMetricsLogger();
		private static final IpConnectivityLog sMetricsLog = new IpConnectivityLog();

		public static <T extends IpConnectivityEvent & Parcelable> void logEvent(T event) {
		// TODO: consider using different component for DNS event.
		sMetricsLogger.logEvent(System.currentTimeMillis(), COMPONENT_TAG, 0, event);
		static <T extends IpConnectivityEvent & Parcelable> void logEvent(T event) {
		sMetricsLog.log(System.currentTimeMillis(), event);
		}
		}
		};

core/java/android/net/metrics/IpConnectivityLog.java

0 → 100644

+70 −0

Original line number	Diff line number	Diff line
		/*
		* 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 android.net.metrics;

		import android.net.ConnectivityMetricsEvent;
		import android.net.ConnectivityMetricsLogger;
		import android.os.Parcelable;
		import android.os.RemoteException;
		import android.util.Log;

		/**
		* Specialization of the ConnectivityMetricsLogger class for recording IP connectivity events.
		* {@hide}
		*/
		class IpConnectivityLog extends ConnectivityMetricsLogger {
		private static String TAG = "IpConnectivityMetricsLogger";
		private static final boolean DBG = false;

		/**
		* Log an IpConnectivity event. Contrary to logEvent(), this method does not
		* keep track of skipped events and is thread-safe for callers.
		*
		* @param timestamp is the epoch timestamp of the event in ms.
		* @param data is a Parcelable IpConnectivityEvent instance representing the event.
		*
		* @return true if the event was successfully logged.
		*/
		public <T extends IpConnectivityEvent & Parcelable> boolean log(long timestamp, T data) {
		if (mService == null) {
		if (DBG) {
		Log.d(TAG, CONNECTIVITY_METRICS_LOGGER_SERVICE + " service not ready");
		}
		return false;
		}

		if (System.currentTimeMillis() < mServiceUnblockedTimestampMillis) {
		if (DBG) {
		Log.d(TAG, "skipping logging due to throttling for IpConnectivity component");
		}
		return false;
		}

		try {
		final ConnectivityMetricsEvent event =
		new ConnectivityMetricsEvent(timestamp, COMPONENT_TAG_CONNECTIVITY, 0, data);
		final long result = mService.logEvent(event);
		if (result >= 0) {
		mServiceUnblockedTimestampMillis = result;
		}
		return (result == 0);
		} catch (RemoteException e) {
		Log.e(TAG, "Error logging event", e);
		return false;
		}
		}
		}