Merge "DO NOT MERGE Create a setting for backup/restore agent timeouts" into pi-dev
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 2b5cece..e46a5f0 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -12338,6 +12338,28 @@
          * @hide
          */
         public static final String SHOW_ZEN_UPGRADE_NOTIFICATION = "show_zen_upgrade_notification";
+
+        /**
+         * Backup and restore agent timeout parameters.
+         * These parameters are represented by a comma-delimited key-value list.
+         *
+         * The following strings are supported as keys:
+         * <pre>
+         *     kv_backup_agent_timeout_millis         (long)
+         *     full_backup_agent_timeout_millis       (long)
+         *     shared_backup_agent_timeout_millis     (long)
+         *     restore_agent_timeout_millis           (long)
+         *     restore_agent_finished_timeout_millis  (long)
+         * </pre>
+         *
+         * They map to milliseconds represented as longs.
+         *
+         * Ex: "kv_backup_agent_timeout_millis=30000,full_backup_agent_timeout_millis=300000"
+         *
+         * @hide
+         */
+        public static final String BACKUP_AGENT_TIMEOUT_PARAMETERS =
+                "backup_agent_timeout_parameters";
     }
 
     /**
diff --git a/core/proto/android/providers/settings.proto b/core/proto/android/providers/settings.proto
index 23c5661..a818e20 100644
--- a/core/proto/android/providers/settings.proto
+++ b/core/proto/android/providers/settings.proto
@@ -502,9 +502,10 @@
     optional SettingProto show_restart_in_crash_dialog = 383 [ (android.privacy).dest = DEST_AUTOMATIC ];
     optional SettingProto show_mute_in_crash_dialog = 384 [ (android.privacy).dest = DEST_AUTOMATIC ];
     optional SettingsProto show_zen_upgrade_notification = 385  [ (android.privacy).dest = DEST_AUTOMATIC ];
+    optional SettingsProto backup_agent_timeout_parameters = 386;
     // Please insert fields in the same order as in
     // frameworks/base/core/java/android/provider/Settings.java.
-    // Next tag = 386;
+    // Next tag = 387;
 }
 
 message SecureSettingsProto {
diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index 73fb713..a08eae9 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -463,8 +463,8 @@
                     Settings.Global.ZRAM_ENABLED,
                     Settings.Global.OVERRIDE_SETTINGS_PROVIDER_RESTORE_ANY_VERSION,
                     Settings.Global.CHAINED_BATTERY_ATTRIBUTION_ENABLED,
-                    Settings.Global.HIDDEN_API_BLACKLIST_EXEMPTIONS);
-
+                    Settings.Global.HIDDEN_API_BLACKLIST_EXEMPTIONS,
+                    Settings.Global.BACKUP_AGENT_TIMEOUT_PARAMETERS);
     private static final Set<String> BACKUP_BLACKLISTED_SECURE_SETTINGS =
              newHashSet(
                  Settings.Secure.ACCESSIBILITY_SOFT_KEYBOARD_MODE,
diff --git a/packages/SettingsProvider/res/values/defaults.xml b/packages/SettingsProvider/res/values/defaults.xml
index 1cd02f4..ecda53a 100644
--- a/packages/SettingsProvider/res/values/defaults.xml
+++ b/packages/SettingsProvider/res/values/defaults.xml
@@ -207,4 +207,7 @@
         Else (if negative), turning on dnd manually will surface a dialog that prompts
             user to specify a duration.-->
     <integer name="def_zen_duration">0</integer>
+
+    <!-- Default for Settings.Global.BACKUP_AGENT_TIMEOUT_PARAMETERS -->
+    <string name="def_backup_agent_timeout_parameters"></string>
 </resources>
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
index 53cff4e..9a43839 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
@@ -1253,6 +1253,9 @@
         dumpSetting(s, p,
                 Settings.Global.SHOW_ZEN_UPGRADE_NOTIFICATION,
                 GlobalSettingsProto.SHOW_ZEN_UPGRADE_NOTIFICATION);
+        dumpSetting(s, p,
+                Settings.Global.BACKUP_AGENT_TIMEOUT_PARAMETERS,
+                GlobalSettingsProto.BACKUP_AGENT_TIMEOUT_PARAMETERS);
         // Please insert new settings using the same order as in Settings.Global.
 
         p.end(token);
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
index 6398858..da62d94 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
@@ -2938,7 +2938,7 @@
         }
 
         private final class UpgradeController {
-            private static final int SETTINGS_VERSION = 157;
+            private static final int SETTINGS_VERSION = 158;
 
             private final int mUserId;
 
@@ -3584,7 +3584,7 @@
                 }
 
                 if (currentVersion == 155) {
-                    // Version 155: Set the default value for CHARGING_STARTED_SOUND.
+                    // Version 156: Set the default value for CHARGING_STARTED_SOUND.
                     final SettingsState globalSettings = getGlobalSettingsLocked();
                     final String oldValue = globalSettings.getSettingLocked(
                             Global.CHARGING_STARTED_SOUND).getValue();
@@ -3605,7 +3605,7 @@
                 }
 
                 if (currentVersion == 156) {
-                    // Version 156: Set a default value for zen duration
+                    // Version 157: Set a default value for zen duration
                     final SettingsState globalSettings = getGlobalSettingsLocked();
                     final Setting currentSetting = globalSettings.getSettingLocked(
                             Global.ZEN_DURATION);
@@ -3616,9 +3616,26 @@
                                 Global.ZEN_DURATION, defaultZenDuration,
                                 null, true, SettingsState.SYSTEM_PACKAGE_NAME);
                     }
-
                     currentVersion = 157;
                 }
+
+                if (currentVersion == 157) {
+                    // Version 158: Set default value for BACKUP_AGENT_TIMEOUT_PARAMETERS.
+                    final SettingsState globalSettings = getGlobalSettingsLocked();
+                    final String oldValue = globalSettings.getSettingLocked(
+                            Settings.Global.BACKUP_AGENT_TIMEOUT_PARAMETERS).getValue();
+                    if (TextUtils.equals(null, oldValue)) {
+                        final String defaultValue = getContext().getResources().getString(
+                                R.string.def_backup_agent_timeout_parameters);
+                        if (!TextUtils.isEmpty(defaultValue)) {
+                            globalSettings.insertSettingLocked(
+                                    Settings.Global.BACKUP_AGENT_TIMEOUT_PARAMETERS, defaultValue,
+                                    null, true,
+                                    SettingsState.SYSTEM_PACKAGE_NAME);
+                        }
+                    }
+                    currentVersion = 158;
+                }
                 // vXXX: Add new settings above this point.
 
                 if (currentVersion != newVersion) {
diff --git a/services/backup/java/com/android/server/backup/BackupAgentTimeoutParameters.java b/services/backup/java/com/android/server/backup/BackupAgentTimeoutParameters.java
new file mode 100644
index 0000000..4de2c9b
--- /dev/null
+++ b/services/backup/java/com/android/server/backup/BackupAgentTimeoutParameters.java
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2018 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.server.backup;
+
+import android.content.ContentResolver;
+import android.os.Handler;
+import android.provider.Settings;
+import android.util.KeyValueListParser;
+import android.util.KeyValueSettingObserver;
+import com.android.internal.annotations.GuardedBy;
+import com.android.internal.annotations.VisibleForTesting;
+
+/**
+ * Configure backup and restore agent timeouts.
+ *
+ * <p>These timeout parameters are stored in Settings.Global to be configurable flags with P/H. They
+ * are represented as a comma-delimited key value list.
+ */
+public class BackupAgentTimeoutParameters extends KeyValueSettingObserver {
+    @VisibleForTesting
+    public static final String SETTING = Settings.Global.BACKUP_AGENT_TIMEOUT_PARAMETERS;
+
+    @VisibleForTesting
+    public static final String SETTING_KV_BACKUP_AGENT_TIMEOUT_MILLIS =
+            "kv_backup_agent_timeout_millis";
+
+    @VisibleForTesting
+    public static final String SETTING_FULL_BACKUP_AGENT_TIMEOUT_MILLIS =
+            "full_backup_agent_timeout_millis";
+
+    @VisibleForTesting
+    public static final String SETTING_SHARED_BACKUP_AGENT_TIMEOUT_MILLIS =
+            "shared_backup_agent_timeout_millis";
+
+    @VisibleForTesting
+    public static final String SETTING_RESTORE_AGENT_TIMEOUT_MILLIS =
+            "restore_agent_timeout_millis";
+
+    @VisibleForTesting
+    public static final String SETTING_RESTORE_AGENT_FINISHED_TIMEOUT_MILLIS =
+            "restore_agent_finished_timeout_millis";
+
+    // Default values
+    @VisibleForTesting public static final long DEFAULT_KV_BACKUP_AGENT_TIMEOUT_MILLIS = 30 * 1000;
+
+    @VisibleForTesting
+    public static final long DEFAULT_FULL_BACKUP_AGENT_TIMEOUT_MILLIS = 5 * 60 * 1000;
+
+    @VisibleForTesting
+    public static final long DEFAULT_SHARED_BACKUP_AGENT_TIMEOUT_MILLIS = 30 * 60 * 1000;
+
+    @VisibleForTesting public static final long DEFAULT_RESTORE_AGENT_TIMEOUT_MILLIS = 60 * 1000;
+
+    @VisibleForTesting
+    public static final long DEFAULT_RESTORE_AGENT_FINISHED_TIMEOUT_MILLIS = 30 * 1000;
+
+    @GuardedBy("mLock")
+    private long mKvBackupAgentTimeoutMillis;
+
+    @GuardedBy("mLock")
+    private long mFullBackupAgentTimeoutMillis;
+
+    @GuardedBy("mLock")
+    private long mSharedBackupAgentTimeoutMillis;
+
+    @GuardedBy("mLock")
+    private long mRestoreAgentTimeoutMillis;
+
+    @GuardedBy("mLock")
+    private long mRestoreAgentFinishedTimeoutMillis;
+
+    private final Object mLock = new Object();
+
+    public BackupAgentTimeoutParameters(Handler handler, ContentResolver resolver) {
+        super(handler, resolver, Settings.Global.getUriFor(SETTING));
+    }
+
+    public String getSettingValue(ContentResolver resolver) {
+        return Settings.Global.getString(resolver, SETTING);
+    }
+
+    public void update(KeyValueListParser parser) {
+        synchronized (mLock) {
+            mKvBackupAgentTimeoutMillis =
+                    parser.getLong(
+                            SETTING_KV_BACKUP_AGENT_TIMEOUT_MILLIS,
+                            DEFAULT_KV_BACKUP_AGENT_TIMEOUT_MILLIS);
+            mFullBackupAgentTimeoutMillis =
+                    parser.getLong(
+                            SETTING_FULL_BACKUP_AGENT_TIMEOUT_MILLIS,
+                            DEFAULT_FULL_BACKUP_AGENT_TIMEOUT_MILLIS);
+            mSharedBackupAgentTimeoutMillis =
+                    parser.getLong(
+                            SETTING_SHARED_BACKUP_AGENT_TIMEOUT_MILLIS,
+                            DEFAULT_SHARED_BACKUP_AGENT_TIMEOUT_MILLIS);
+            mRestoreAgentTimeoutMillis =
+                    parser.getLong(
+                            SETTING_RESTORE_AGENT_TIMEOUT_MILLIS,
+                            DEFAULT_RESTORE_AGENT_TIMEOUT_MILLIS);
+            mRestoreAgentFinishedTimeoutMillis =
+                    parser.getLong(
+                            SETTING_RESTORE_AGENT_FINISHED_TIMEOUT_MILLIS,
+                            DEFAULT_RESTORE_AGENT_FINISHED_TIMEOUT_MILLIS);
+        }
+    }
+
+    public long getKvBackupAgentTimeoutMillis() {
+        synchronized (mLock) {
+            return mKvBackupAgentTimeoutMillis;
+        }
+    }
+
+    public long getFullBackupAgentTimeoutMillis() {
+        synchronized (mLock) {
+            return mFullBackupAgentTimeoutMillis;
+        }
+    }
+
+    public long getSharedBackupAgentTimeoutMillis() {
+        synchronized (mLock) {
+            return mSharedBackupAgentTimeoutMillis;
+        }
+    }
+
+    public long getRestoreAgentTimeoutMillis() {
+        synchronized (mLock) {
+            return mRestoreAgentTimeoutMillis;
+        }
+    }
+
+    public long getRestoreAgentFinishedTimeoutMillis() {
+        synchronized (mLock) {
+            return mRestoreAgentFinishedTimeoutMillis;
+        }
+    }
+}
diff --git a/services/robotests/src/com/android/server/backup/BackupAgentTimeoutParametersTest.java b/services/robotests/src/com/android/server/backup/BackupAgentTimeoutParametersTest.java
new file mode 100644
index 0000000..801451e
--- /dev/null
+++ b/services/robotests/src/com/android/server/backup/BackupAgentTimeoutParametersTest.java
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2018 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.server.backup;
+
+import static org.junit.Assert.assertEquals;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.os.Handler;
+import android.platform.test.annotations.Presubmit;
+import android.provider.Settings;
+import android.util.KeyValueSettingObserver;
+import com.android.server.testing.FrameworkRobolectricTestRunner;
+import com.android.server.testing.SystemLoaderClasses;
+import com.android.server.testing.SystemLoaderPackages;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+/** Tests for {@link BackupAgentTimeoutParameters}. */
+@RunWith(FrameworkRobolectricTestRunner.class)
+@Config(manifest = Config.NONE, sdk = 26)
+@SystemLoaderPackages({"com.android.server.backup"})
+@SystemLoaderClasses({KeyValueSettingObserver.class})
+@Presubmit
+public class BackupAgentTimeoutParametersTest {
+    private ContentResolver mContentResolver;
+    private BackupAgentTimeoutParameters mParameters;
+
+    /** Initialize timeout parameters and start observing changes. */
+    @Before
+    public void setUp() {
+        Context context = RuntimeEnvironment.application.getApplicationContext();
+
+        mContentResolver = context.getContentResolver();
+        mParameters = new BackupAgentTimeoutParameters(new Handler(), mContentResolver);
+        mParameters.start();
+    }
+
+    /** Stop observing changes to the setting. */
+    @After
+    public void tearDown() {
+        mParameters.stop();
+    }
+
+    /** Tests that timeout parameters are initialized with default values on creation. */
+    @Test
+    public void testGetParameters_afterConstructorWithStart_returnsDefaultValues() {
+        long kvBackupAgentTimeoutMillis = mParameters.getKvBackupAgentTimeoutMillis();
+        long fullBackupAgentTimeoutMillis = mParameters.getFullBackupAgentTimeoutMillis();
+        long sharedBackupAgentTimeoutMillis = mParameters.getSharedBackupAgentTimeoutMillis();
+        long restoreAgentTimeoutMillis = mParameters.getRestoreAgentTimeoutMillis();
+        long restoreAgentFinishedTimeoutMillis = mParameters.getRestoreAgentFinishedTimeoutMillis();
+
+        assertEquals(
+                BackupAgentTimeoutParameters.DEFAULT_KV_BACKUP_AGENT_TIMEOUT_MILLIS,
+                kvBackupAgentTimeoutMillis);
+        assertEquals(
+                BackupAgentTimeoutParameters.DEFAULT_FULL_BACKUP_AGENT_TIMEOUT_MILLIS,
+                fullBackupAgentTimeoutMillis);
+        assertEquals(
+                BackupAgentTimeoutParameters.DEFAULT_SHARED_BACKUP_AGENT_TIMEOUT_MILLIS,
+                sharedBackupAgentTimeoutMillis);
+        assertEquals(
+                BackupAgentTimeoutParameters.DEFAULT_RESTORE_AGENT_TIMEOUT_MILLIS,
+                restoreAgentTimeoutMillis);
+        assertEquals(
+                BackupAgentTimeoutParameters.DEFAULT_RESTORE_AGENT_FINISHED_TIMEOUT_MILLIS,
+                restoreAgentFinishedTimeoutMillis);
+    }
+
+    /**
+     * Tests that timeout parameters are updated when we call start, even when a setting change
+     * occurs while we are not observing.
+     */
+    @Test
+    public void testGetParameters_withSettingChangeBeforeStart_updatesValues() {
+        mParameters.stop();
+        long testTimeout = BackupAgentTimeoutParameters.DEFAULT_KV_BACKUP_AGENT_TIMEOUT_MILLIS * 2;
+        final String setting =
+                BackupAgentTimeoutParameters.SETTING_KV_BACKUP_AGENT_TIMEOUT_MILLIS
+                        + "="
+                        + testTimeout;
+        putStringAndNotify(setting);
+        mParameters.start();
+
+        long kvBackupAgentTimeoutMillis = mParameters.getKvBackupAgentTimeoutMillis();
+
+        assertEquals(testTimeout, kvBackupAgentTimeoutMillis);
+    }
+
+    /**
+     * Tests that timeout parameters are updated when a setting change occurs while we are observing
+     * changes.
+     */
+    @Test
+    public void testGetParameters_withSettingChangeAfterStart_updatesValues() {
+        long testTimeout = BackupAgentTimeoutParameters.DEFAULT_KV_BACKUP_AGENT_TIMEOUT_MILLIS * 2;
+        final String setting =
+                BackupAgentTimeoutParameters.SETTING_KV_BACKUP_AGENT_TIMEOUT_MILLIS
+                        + "="
+                        + testTimeout;
+        putStringAndNotify(setting);
+
+        long kvBackupAgentTimeoutMillis = mParameters.getKvBackupAgentTimeoutMillis();
+
+        assertEquals(testTimeout, kvBackupAgentTimeoutMillis);
+    }
+
+    /**
+     * Robolectric does not notify observers of changes to settings so we have to trigger it here.
+     * Currently, the mock of {@link Settings.Secure#putString(ContentResolver, String, String)}
+     * only stores the value. TODO: Implement properly in ShadowSettings.
+     */
+    private void putStringAndNotify(String value) {
+        Settings.Global.putString(mContentResolver, BackupAgentTimeoutParameters.SETTING, value);
+
+        // We pass null as the observer since notifyChange iterates over all available observers and
+        // we don't have access to the local observer.
+        mContentResolver.notifyChange(
+                Settings.Global.getUriFor(BackupAgentTimeoutParameters.SETTING), /*observer*/ null);
+    }
+}