Merge "Add unit test for Trampoline."

import java.io.IOException;

import java.io.PrintWriter;

/**

 * A proxy to BackupManagerService implementation.

 *

 * This is an external interface to the BackupManagerService which is being accessed via published

 * binder (see BackupManagerService$Lifecycle). This lets us turn down the heavy implementation

 * object on the fly without disturbing binders that have been cached somewhere in the system.

 *

 * This is where it is decided whether backup subsystem is available. It can be disabled with the

 * following two methods:

 *

 * <ul>

 * <li> Temporarily - create a file named Trampoline.BACKUP_SUPPRESS_FILENAME, or

 * <li> Product level - set Trampoline.BACKUP_DISABLE_PROPERTY system property to true.

 * </ul>

 */

public class Trampoline extends IBackupManager.Stub {

    static final String TAG = "BackupManagerService";

    static final boolean DEBUG_TRAMPOLINE = false;

    volatile BackupManagerServiceInterface mService;

    public Trampoline(Context context) {

        this(context,

                SystemProperties.getBoolean(BACKUP_DISABLE_PROPERTY, false),

                new File(new File(Environment.getDataDirectory(), "backup"),

                        BACKUP_SUPPRESS_FILENAME));

    }

    protected Trampoline(Context context, boolean globalDisable, File suppressFile) {

        mContext = context;

        File dir = new File(Environment.getDataDirectory(), "backup");

        dir.mkdirs();

        mSuppressFile = new File(dir, BACKUP_SUPPRESS_FILENAME);

        mGlobalDisable = SystemProperties.getBoolean(BACKUP_DISABLE_PROPERTY, false);

        mGlobalDisable = globalDisable;

        mSuppressFile = suppressFile;

        mSuppressFile.getParentFile().mkdirs();

    }

    private BackupManagerServiceInterface createService() {

    protected BackupManagerServiceInterface createService() {

        boolean refactoredServiceEnabled = Settings.Global.getInt(mContext.getContentResolver(),

            Settings.Global.BACKUP_REFACTORED_SERVICE_DISABLED, 1) == 0;

        if (refactoredServiceEnabled) {

    frameworks-base-testutils \

    services.accessibility \

    services.appwidget \

    services.backup \

    services.core \

    services.devicepolicy \

    services.net \