The Tor Browser / file comparison
comparison: mobile/android/base/health/SessionInformation.java
mobile/android/base/health/SessionInformation.java
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
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replaced
| -1:000000000000 | 0:6e1ca7d00597 |
|---|---|
| 1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 package org.mozilla.gecko.health; | |
| 7 | |
| 8 import android.content.SharedPreferences; | |
| 9 import android.util.Log; | |
| 10 | |
| 11 import org.mozilla.gecko.GeckoApp; | |
| 12 | |
| 13 import org.json.JSONException; | |
| 14 import org.json.JSONObject; | |
| 15 | |
| 16 public class SessionInformation { | |
| 17 private static final String LOG_TAG = "GeckoSessInfo"; | |
| 18 | |
| 19 public static final String PREFS_SESSION_START = "sessionStart"; | |
| 20 | |
| 21 public final long wallStartTime; // System wall clock. | |
| 22 public final long realStartTime; // Realtime clock. | |
| 23 | |
| 24 private final boolean wasOOM; | |
| 25 private final boolean wasStopped; | |
| 26 | |
| 27 private volatile long timedGeckoStartup = -1; | |
| 28 private volatile long timedJavaStartup = -1; | |
| 29 | |
| 30 // Current sessions don't (right now) care about wasOOM/wasStopped. | |
| 31 // Eventually we might want to lift that logic out of GeckoApp. | |
| 32 public SessionInformation(long wallTime, long realTime) { | |
| 33 this(wallTime, realTime, false, false); | |
| 34 } | |
| 35 | |
| 36 // Previous sessions do... | |
| 37 public SessionInformation(long wallTime, long realTime, boolean wasOOM, boolean wasStopped) { | |
| 38 this.wallStartTime = wallTime; | |
| 39 this.realStartTime = realTime; | |
| 40 this.wasOOM = wasOOM; | |
| 41 this.wasStopped = wasStopped; | |
| 42 } | |
| 43 | |
| 44 /** | |
| 45 * Initialize a new SessionInformation instance from the supplied prefs object. | |
| 46 * | |
| 47 * This includes retrieving OOM/crash data, as well as timings. | |
| 48 * | |
| 49 * If no wallStartTime was found, that implies that the previous | |
| 50 * session was correctly recorded, and an object with a zero | |
| 51 * wallStartTime is returned. | |
| 52 */ | |
| 53 public static SessionInformation fromSharedPrefs(SharedPreferences prefs) { | |
| 54 boolean wasOOM = prefs.getBoolean(GeckoApp.PREFS_OOM_EXCEPTION, false); | |
| 55 boolean wasStopped = prefs.getBoolean(GeckoApp.PREFS_WAS_STOPPED, true); | |
| 56 long wallStartTime = prefs.getLong(PREFS_SESSION_START, 0L); | |
| 57 long realStartTime = 0L; | |
| 58 Log.d(LOG_TAG, "Building SessionInformation from prefs: " + | |
| 59 wallStartTime + ", " + realStartTime + ", " + | |
| 60 wasStopped + ", " + wasOOM); | |
| 61 return new SessionInformation(wallStartTime, realStartTime, wasOOM, wasStopped); | |
| 62 } | |
| 63 | |
| 64 /** | |
| 65 * Initialize a new SessionInformation instance to 'split' the current | |
| 66 * session. | |
| 67 */ | |
| 68 public static SessionInformation forRuntimeTransition() { | |
| 69 final boolean wasOOM = false; | |
| 70 final boolean wasStopped = true; | |
| 71 final long wallStartTime = System.currentTimeMillis(); | |
| 72 final long realStartTime = android.os.SystemClock.elapsedRealtime(); | |
| 73 Log.v(LOG_TAG, "Recording runtime session transition: " + | |
| 74 wallStartTime + ", " + realStartTime); | |
| 75 return new SessionInformation(wallStartTime, realStartTime, wasOOM, wasStopped); | |
| 76 } | |
| 77 | |
| 78 public boolean wasKilled() { | |
| 79 return wasOOM || !wasStopped; | |
| 80 } | |
| 81 | |
| 82 /** | |
| 83 * Record the beginning of this session to SharedPreferences by | |
| 84 * recording our start time. If a session was already recorded, it is | |
| 85 * overwritten (there can only be one running session at a time). Does | |
| 86 * not commit the editor. | |
| 87 */ | |
| 88 public void recordBegin(SharedPreferences.Editor editor) { | |
| 89 Log.d(LOG_TAG, "Recording start of session: " + this.wallStartTime); | |
| 90 editor.putLong(PREFS_SESSION_START, this.wallStartTime); | |
| 91 } | |
| 92 | |
| 93 /** | |
| 94 * Record the completion of this session to SharedPreferences by | |
| 95 * deleting our start time. Does not commit the editor. | |
| 96 */ | |
| 97 public void recordCompletion(SharedPreferences.Editor editor) { | |
| 98 Log.d(LOG_TAG, "Recording session done: " + this.wallStartTime); | |
| 99 editor.remove(PREFS_SESSION_START); | |
| 100 } | |
| 101 | |
| 102 /** | |
| 103 * Return the JSON that we'll put in the DB for this session. | |
| 104 */ | |
| 105 public JSONObject getCompletionJSON(String reason, long realEndTime) throws JSONException { | |
| 106 long durationSecs = (realEndTime - this.realStartTime) / 1000; | |
| 107 JSONObject out = new JSONObject(); | |
| 108 out.put("r", reason); | |
| 109 out.put("d", durationSecs); | |
| 110 if (this.timedGeckoStartup > 0) { | |
| 111 out.put("sg", this.timedGeckoStartup); | |
| 112 } | |
| 113 if (this.timedJavaStartup > 0) { | |
| 114 out.put("sj", this.timedJavaStartup); | |
| 115 } | |
| 116 return out; | |
| 117 } | |
| 118 | |
| 119 public JSONObject getCrashedJSON() throws JSONException { | |
| 120 JSONObject out = new JSONObject(); | |
| 121 // We use ints here instead of booleans, because we're packing | |
| 122 // stuff into JSON, and saving bytes in the DB is a worthwhile | |
| 123 // goal. | |
| 124 out.put("oom", this.wasOOM ? 1 : 0); | |
| 125 out.put("stopped", this.wasStopped ? 1 : 0); | |
| 126 out.put("r", "A"); | |
| 127 return out; | |
| 128 } | |
| 129 | |
| 130 public void setTimedGeckoStartup(final long duration) { | |
| 131 timedGeckoStartup = duration; | |
| 132 } | |
| 133 | |
| 134 public void setTimedJavaStartup(final long duration) { | |
| 135 timedJavaStartup = duration; | |
| 136 } | |
| 137 } |
