michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko.db;
michael@0: 
michael@0: import java.io.File;
michael@0: import java.util.HashMap;
michael@0: 
michael@0: import org.mozilla.gecko.GeckoProfile;
michael@0: 
michael@0: import android.content.Context;
michael@0: import android.database.sqlite.SQLiteOpenHelper;
michael@0: import android.text.TextUtils;
michael@0: 
michael@0: /**
michael@0:  * Manages a set of per-profile database storage helpers.
michael@0:  */
michael@0: public class PerProfileDatabases<T extends SQLiteOpenHelper> {
michael@0: 
michael@0:     private final HashMap<String, T> mStorages = new HashMap<String, T>();
michael@0: 
michael@0:     private final Context mContext;
michael@0:     private final String mDatabaseName;
michael@0:     private final DatabaseHelperFactory<T> mHelperFactory;
michael@0: 
michael@0:     public interface DatabaseHelperFactory<T> {
michael@0:         public T makeDatabaseHelper(Context context, String databasePath);
michael@0:     }
michael@0: 
michael@0:     public PerProfileDatabases(final Context context, final String databaseName, final DatabaseHelperFactory<T> helperFactory) {
michael@0:         mContext = context;
michael@0:         mDatabaseName = databaseName;
michael@0:         mHelperFactory = helperFactory;
michael@0:     }
michael@0: 
michael@0:     public String getDatabasePathForProfile(String profile) {
michael@0:         final File profileDir = GeckoProfile.get(mContext, profile).getDir();
michael@0:         if (profileDir == null) {
michael@0:             return null;
michael@0:         }
michael@0: 
michael@0:         return new File(profileDir, mDatabaseName).getAbsolutePath();
michael@0:     }
michael@0: 
michael@0:     public T getDatabaseHelperForProfile(String profile) {
michael@0:         return getDatabaseHelperForProfile(profile, false);
michael@0:     }
michael@0: 
michael@0:     public T getDatabaseHelperForProfile(String profile, boolean isTest) {
michael@0:         // Always fall back to default profile if none has been provided.
michael@0:         if (TextUtils.isEmpty(profile)) {
michael@0:             profile = GeckoProfile.get(mContext).getName();
michael@0:         }
michael@0: 
michael@0:         synchronized (this) {
michael@0:             if (mStorages.containsKey(profile)) {
michael@0:                 return mStorages.get(profile);
michael@0:             }
michael@0: 
michael@0:             final String databasePath = isTest ? mDatabaseName : getDatabasePathForProfile(profile);
michael@0:             if (databasePath == null) {
michael@0:                 throw new IllegalStateException("Database path is null for profile: " + profile);
michael@0:             }
michael@0: 
michael@0:             final T helper = mHelperFactory.makeDatabaseHelper(mContext, databasePath);
michael@0:             DBUtils.ensureDatabaseIsNotLocked(helper, databasePath);
michael@0: 
michael@0:             mStorages.put(profile, helper);
michael@0:             return helper;
michael@0:         }
michael@0:     }
michael@0: }