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Squashed commit of the following:

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Author: Christopher Tate <ctate@google.com>
Date:   Mon May 4 16:38:11 2009 -0700

    IBackupService now passes ParcelFileDescriptors rather than int fds

    The outlines of backup state file / data file handling are now in place as well
    in the BackupManagerService.

Author: Christopher Tate <ctate@google.com>
Date:   Thu Apr 30 12:40:19 2009 -0700

    Hide the backup stuff for now

    Also adjust based on comments:
    + changed service intent string to conform to usage guidelines
    + only publish the IBackupService binder when invoked with the right
      intent action
    + docs tweaks
This commit is contained in:
Christopher Tate
2009-05-04 16:41:53 -07:00
parent 636274185e
commit 22b8787ed4
3 changed files with 85 additions and 35 deletions
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43
services/java/com/android/server/BackupManagerService.java
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@@ -26,15 +26,19 @@ import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.pm.ServiceInfo;
import android.os.Binder;
import android.os.Environment;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.ParcelFileDescriptor;
import android.os.RemoteException;
import android.util.Log;
import android.util.SparseArray;
import android.backup.IBackupManager;
import java.io.File;
import java.io.FileNotFoundException;
import java.lang.String;
import java.util.HashSet;
import java.util.List;
@@ -57,6 +61,7 @@ class BackupManagerService extends IBackupManager.Stub {
private HashSet<ServiceInfo> mPendingBackups = new HashSet<ServiceInfo>();
private final Object mQueueLock = new Object();
private File mStateDir;
// ----- Handler that runs the actual backup process asynchronously -----
@@ -99,12 +104,41 @@ class BackupManagerService extends IBackupManager.Stub {
if (mTargetService != null) {
try {
Log.d(TAG, "invoking doBackup() on " + backupIntent);
// !!! TODO: set up files
mTargetService.doBackup(-1, -1, -1);
File savedStateName = new File(mStateDir, service.packageName);
File backupDataName = new File(mStateDir, service.packageName + ".data");
File newStateName = new File(mStateDir, service.packageName + ".new");
ParcelFileDescriptor savedState =
ParcelFileDescriptor.open(savedStateName,
ParcelFileDescriptor.MODE_READ_ONLY |
ParcelFileDescriptor.MODE_CREATE);
ParcelFileDescriptor backupData =
ParcelFileDescriptor.open(backupDataName,
ParcelFileDescriptor.MODE_READ_WRITE |
ParcelFileDescriptor.MODE_CREATE);
ParcelFileDescriptor newState =
ParcelFileDescriptor.open(newStateName,
ParcelFileDescriptor.MODE_READ_WRITE |
ParcelFileDescriptor.MODE_CREATE);
mTargetService.doBackup(savedState, backupData, newState);
// !!! TODO: Now propagate the newly-backed-up data to the transport
// !!! TODO: After successful transport, juggle the files so that
// next time the new state is used as the old state
} catch (FileNotFoundException fnf) {
Log.d(TAG, "File not found on backup: ");
fnf.printStackTrace();
} catch (RemoteException e) {
Log.d(TAG, "Remote target " + backupIntent
+ " threw during backup:");
e.printStackTrace();
} catch (Exception e) {
Log.w(TAG, "Final exception guard in backup: ");
e.printStackTrace();
}
mContext.unbindService(this);
}
@@ -138,6 +172,11 @@ class BackupManagerService extends IBackupManager.Stub {
mContext = context;
mPackageManager = context.getPackageManager();
// Set up our bookkeeping
File dataDir = Environment.getDataDirectory();
mStateDir = new File(dataDir, "backup");
mStateDir.mkdirs();
// Identify the backup participants
// !!! TODO: also watch package-install to keep this up to date
List<ResolveInfo> services = mPackageManager.queryIntentServices(