The Tor Browser: mobile/android/base/db/PerProfileDatabases.java@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 package org.mozilla.gecko.db;

     7 import java.io.File;

     8 import java.util.HashMap;

    10 import org.mozilla.gecko.GeckoProfile;

    12 import android.content.Context;

    13 import android.database.sqlite.SQLiteOpenHelper;

    14 import android.text.TextUtils;

    16 /**

    17  * Manages a set of per-profile database storage helpers.

    18  */

    19 public class PerProfileDatabases<T extends SQLiteOpenHelper> {

    21     private final HashMap<String, T> mStorages = new HashMap<String, T>();

    23     private final Context mContext;

    24     private final String mDatabaseName;

    25     private final DatabaseHelperFactory<T> mHelperFactory;

    27     public interface DatabaseHelperFactory<T> {

    28         public T makeDatabaseHelper(Context context, String databasePath);

    29     }

    31     public PerProfileDatabases(final Context context, final String databaseName, final DatabaseHelperFactory<T> helperFactory) {

    32         mContext = context;

    33         mDatabaseName = databaseName;

    34         mHelperFactory = helperFactory;

    35     }

    37     public String getDatabasePathForProfile(String profile) {

    38         final File profileDir = GeckoProfile.get(mContext, profile).getDir();

    39         if (profileDir == null) {

    40             return null;

    41         }

    43         return new File(profileDir, mDatabaseName).getAbsolutePath();

    44     }

    46     public T getDatabaseHelperForProfile(String profile) {

    47         return getDatabaseHelperForProfile(profile, false);

    48     }

    50     public T getDatabaseHelperForProfile(String profile, boolean isTest) {

    51         // Always fall back to default profile if none has been provided.

    52         if (TextUtils.isEmpty(profile)) {

    53             profile = GeckoProfile.get(mContext).getName();

    54         }

    56         synchronized (this) {

    57             if (mStorages.containsKey(profile)) {

    58                 return mStorages.get(profile);

    59             }

    61             final String databasePath = isTest ? mDatabaseName : getDatabasePathForProfile(profile);

    62             if (databasePath == null) {

    63                 throw new IllegalStateException("Database path is null for profile: " + profile);

    64             }

    66             final T helper = mHelperFactory.makeDatabaseHelper(mContext, databasePath);

    67             DBUtils.ensureDatabaseIsNotLocked(helper, databasePath);

    69             mStorages.put(profile, helper);

    70             return helper;

    71         }

    72     }

    73 }

The Tor Browser / file revision