Merge "Synchronize access to ranking helper records." into oc-dev
diff --git a/services/core/java/com/android/server/notification/RankingHelper.java b/services/core/java/com/android/server/notification/RankingHelper.java
index 44dc61d..221b2bb 100644
--- a/services/core/java/com/android/server/notification/RankingHelper.java
+++ b/services/core/java/com/android/server/notification/RankingHelper.java
@@ -232,7 +232,9 @@
 
     private Record getRecord(String pkg, int uid) {
         final String key = recordKey(pkg, uid);
-        return mRecords.get(key);
+        synchronized (mRecords) {
+            return mRecords.get(key);
+        }
     }
 
     private Record getOrCreateRecord(String pkg, int uid) {
@@ -243,29 +245,32 @@
     private Record getOrCreateRecord(String pkg, int uid, int importance, int priority,
             int visibility, boolean showBadge) {
         final String key = recordKey(pkg, uid);
-        Record r = (uid == Record.UNKNOWN_UID) ? mRestoredWithoutUids.get(pkg) : mRecords.get(key);
-        if (r == null) {
-            r = new Record();
-            r.pkg = pkg;
-            r.uid = uid;
-            r.importance = importance;
-            r.priority = priority;
-            r.visibility = visibility;
-            r.showBadge = showBadge;
+        synchronized (mRecords) {
+            Record r = (uid == Record.UNKNOWN_UID) ? mRestoredWithoutUids.get(pkg) : mRecords.get(
+                    key);
+            if (r == null) {
+                r = new Record();
+                r.pkg = pkg;
+                r.uid = uid;
+                r.importance = importance;
+                r.priority = priority;
+                r.visibility = visibility;
+                r.showBadge = showBadge;
 
-            try {
-                createDefaultChannelIfNeeded(r);
-            } catch (NameNotFoundException e) {
-                Slog.e(TAG, "createDefaultChannelIfNeeded - Exception: " + e);
-            }
+                try {
+                    createDefaultChannelIfNeeded(r);
+                } catch (NameNotFoundException e) {
+                    Slog.e(TAG, "createDefaultChannelIfNeeded - Exception: " + e);
+                }
 
-            if (r.uid == Record.UNKNOWN_UID) {
-                mRestoredWithoutUids.put(pkg, r);
-            } else {
-                mRecords.put(key, r);
+                if (r.uid == Record.UNKNOWN_UID) {
+                    mRestoredWithoutUids.put(pkg, r);
+                } else {
+                    mRecords.put(key, r);
+                }
             }
+            return r;
         }
-        return r;
     }
 
     private boolean shouldHaveDefaultChannel(Record r) throws NameNotFoundException {
@@ -346,46 +351,48 @@
         out.startTag(null, TAG_RANKING);
         out.attribute(null, ATT_VERSION, Integer.toString(XML_VERSION));
 
-        final int N = mRecords.size();
-        for (int i = 0; i < N; i++) {
-            final Record r = mRecords.valueAt(i);
-            //TODO: http://b/22388012
-            if (forBackup && UserHandle.getUserId(r.uid) != UserHandle.USER_SYSTEM) {
-                continue;
-            }
-            final boolean hasNonDefaultSettings = r.importance != DEFAULT_IMPORTANCE
-                    || r.priority != DEFAULT_PRIORITY || r.visibility != DEFAULT_VISIBILITY
-                    || r.showBadge != DEFAULT_SHOW_BADGE || r.channels.size() > 0
-                    || r.groups.size() > 0;
-            if (hasNonDefaultSettings) {
-                out.startTag(null, TAG_PACKAGE);
-                out.attribute(null, ATT_NAME, r.pkg);
-                if (r.importance != DEFAULT_IMPORTANCE) {
-                    out.attribute(null, ATT_IMPORTANCE, Integer.toString(r.importance));
+        synchronized (mRecords) {
+            final int N = mRecords.size();
+            for (int i = 0; i < N; i++) {
+                final Record r = mRecords.valueAt(i);
+                //TODO: http://b/22388012
+                if (forBackup && UserHandle.getUserId(r.uid) != UserHandle.USER_SYSTEM) {
+                    continue;
                 }
-                if (r.priority != DEFAULT_PRIORITY) {
-                    out.attribute(null, ATT_PRIORITY, Integer.toString(r.priority));
-                }
-                if (r.visibility != DEFAULT_VISIBILITY) {
-                    out.attribute(null, ATT_VISIBILITY, Integer.toString(r.visibility));
-                }
-                out.attribute(null, ATT_SHOW_BADGE, Boolean.toString(r.showBadge));
-
-                if (!forBackup) {
-                    out.attribute(null, ATT_UID, Integer.toString(r.uid));
-                }
-
-                for (NotificationChannelGroup group : r.groups.values()) {
-                    group.writeXml(out);
-                }
-
-                for (NotificationChannel channel : r.channels.values()) {
-                    if (!forBackup || (forBackup && !channel.isDeleted())) {
-                        channel.writeXml(out);
+                final boolean hasNonDefaultSettings = r.importance != DEFAULT_IMPORTANCE
+                        || r.priority != DEFAULT_PRIORITY || r.visibility != DEFAULT_VISIBILITY
+                        || r.showBadge != DEFAULT_SHOW_BADGE || r.channels.size() > 0
+                        || r.groups.size() > 0;
+                if (hasNonDefaultSettings) {
+                    out.startTag(null, TAG_PACKAGE);
+                    out.attribute(null, ATT_NAME, r.pkg);
+                    if (r.importance != DEFAULT_IMPORTANCE) {
+                        out.attribute(null, ATT_IMPORTANCE, Integer.toString(r.importance));
                     }
-                }
+                    if (r.priority != DEFAULT_PRIORITY) {
+                        out.attribute(null, ATT_PRIORITY, Integer.toString(r.priority));
+                    }
+                    if (r.visibility != DEFAULT_VISIBILITY) {
+                        out.attribute(null, ATT_VISIBILITY, Integer.toString(r.visibility));
+                    }
+                    out.attribute(null, ATT_SHOW_BADGE, Boolean.toString(r.showBadge));
 
-                out.endTag(null, TAG_PACKAGE);
+                    if (!forBackup) {
+                        out.attribute(null, ATT_UID, Integer.toString(r.uid));
+                    }
+
+                    for (NotificationChannelGroup group : r.groups.values()) {
+                        group.writeXml(out);
+                    }
+
+                    for (NotificationChannel channel : r.channels.values()) {
+                        if (!forBackup || (forBackup && !channel.isDeleted())) {
+                            channel.writeXml(out);
+                        }
+                    }
+
+                    out.endTag(null, TAG_PACKAGE);
+                }
             }
         }
         out.endTag(null, TAG_RANKING);
@@ -814,7 +821,9 @@
             pw.println("per-package config:");
         }
         pw.println("Records:");
-        dumpRecords(pw, prefix, filter, mRecords);
+        synchronized (mRecords) {
+            dumpRecords(pw, prefix, filter, mRecords);
+        }
         pw.println("Restored without uid:");
         dumpRecords(pw, prefix, filter, mRestoredWithoutUids);
     }
@@ -870,36 +879,38 @@
         } catch (JSONException e) {
            // pass
         }
-        final int N = mRecords.size();
-        for (int i = 0; i < N; i++) {
-            final Record r = mRecords.valueAt(i);
-            if (filter == null || filter.matches(r.pkg)) {
-                JSONObject record = new JSONObject();
-                try {
-                    record.put("userId", UserHandle.getUserId(r.uid));
-                    record.put("packageName", r.pkg);
-                    if (r.importance != DEFAULT_IMPORTANCE) {
-                        record.put("importance", Ranking.importanceToString(r.importance));
+        synchronized (mRecords) {
+            final int N = mRecords.size();
+            for (int i = 0; i < N; i++) {
+                final Record r = mRecords.valueAt(i);
+                if (filter == null || filter.matches(r.pkg)) {
+                    JSONObject record = new JSONObject();
+                    try {
+                        record.put("userId", UserHandle.getUserId(r.uid));
+                        record.put("packageName", r.pkg);
+                        if (r.importance != DEFAULT_IMPORTANCE) {
+                            record.put("importance", Ranking.importanceToString(r.importance));
+                        }
+                        if (r.priority != DEFAULT_PRIORITY) {
+                            record.put("priority", Notification.priorityToString(r.priority));
+                        }
+                        if (r.visibility != DEFAULT_VISIBILITY) {
+                            record.put("visibility", Notification.visibilityToString(r.visibility));
+                        }
+                        if (r.showBadge != DEFAULT_SHOW_BADGE) {
+                            record.put("showBadge", Boolean.valueOf(r.showBadge));
+                        }
+                        for (NotificationChannel channel : r.channels.values()) {
+                            record.put("channel", channel.toJson());
+                        }
+                        for (NotificationChannelGroup group : r.groups.values()) {
+                            record.put("group", group.toJson());
+                        }
+                    } catch (JSONException e) {
+                        // pass
                     }
-                    if (r.priority != DEFAULT_PRIORITY) {
-                        record.put("priority", Notification.priorityToString(r.priority));
-                    }
-                    if (r.visibility != DEFAULT_VISIBILITY) {
-                        record.put("visibility", Notification.visibilityToString(r.visibility));
-                    }
-                    if (r.showBadge != DEFAULT_SHOW_BADGE) {
-                        record.put("showBadge", Boolean.valueOf(r.showBadge));
-                    }
-                    for (NotificationChannel channel : r.channels.values()) {
-                        record.put("channel", channel.toJson());
-                    }
-                    for (NotificationChannelGroup group : r.groups.values()) {
-                        record.put("group", group.toJson());
-                    }
-                } catch (JSONException e) {
-                   // pass
+                    records.put(record);
                 }
-                records.put(record);
             }
         }
         try {
@@ -940,15 +951,18 @@
     }
 
     public Map<Integer, String> getPackageBans() {
-        final int N = mRecords.size();
-        ArrayMap<Integer, String> packageBans = new ArrayMap<>(N);
-        for (int i = 0; i < N; i++) {
-            final Record r = mRecords.valueAt(i);
-            if (r.importance == NotificationManager.IMPORTANCE_NONE) {
-                packageBans.put(r.uid, r.pkg);
+        synchronized (mRecords) {
+            final int N = mRecords.size();
+            ArrayMap<Integer, String> packageBans = new ArrayMap<>(N);
+            for (int i = 0; i < N; i++) {
+                final Record r = mRecords.valueAt(i);
+                if (r.importance == NotificationManager.IMPORTANCE_NONE) {
+                    packageBans.put(r.uid, r.pkg);
+                }
             }
+
+            return packageBans;
         }
-        return packageBans;
     }
 
     /**
@@ -981,15 +995,17 @@
 
     private Map<String, Integer> getPackageChannels() {
         ArrayMap<String, Integer> packageChannels = new ArrayMap<>();
-        for (int i = 0; i < mRecords.size(); i++) {
-            final Record r = mRecords.valueAt(i);
-            int channelCount = 0;
-            for (int j = 0; j < r.channels.size();j++) {
-                if (!r.channels.valueAt(j).isDeleted()) {
-                    channelCount++;
+        synchronized (mRecords) {
+            for (int i = 0; i < mRecords.size(); i++) {
+                final Record r = mRecords.valueAt(i);
+                int channelCount = 0;
+                for (int j = 0; j < r.channels.size(); j++) {
+                    if (!r.channels.valueAt(j).isDeleted()) {
+                        channelCount++;
+                    }
                 }
+                packageChannels.put(r.pkg, channelCount);
             }
-            packageChannels.put(r.pkg, channelCount);
         }
         return packageChannels;
     }
@@ -1006,7 +1022,9 @@
             for (int i = 0; i < size; i++) {
                 final String pkg = pkgList[i];
                 final int uid = uidList[i];
-                mRecords.remove(recordKey(pkg, uid));
+                synchronized (mRecords) {
+                    mRecords.remove(recordKey(pkg, uid));
+                }
                 mRestoredWithoutUids.remove(pkg);
                 updated = true;
             }
@@ -1018,7 +1036,9 @@
                     try {
                         r.uid = mPm.getPackageUidAsUser(r.pkg, changeUserId);
                         mRestoredWithoutUids.remove(pkg);
-                        mRecords.put(recordKey(r.pkg, r.uid), r);
+                        synchronized (mRecords) {
+                            mRecords.put(recordKey(r.pkg, r.uid), r);
+                        }
                         updated = true;
                     } catch (NameNotFoundException e) {
                         // noop