src/com/owncloud/android/services/OperationsService.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012-2014 ownCloud Inc.
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License version 2,
   6  *   as published by the Free Software Foundation.
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details.
  12  *
  13  *   You should have received a copy of the GNU General Public License
  14  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  */
  17
  18 package com.owncloud.android.services;
  19
  20 import java.io.IOException;
  21 import java.util.Iterator;
  22 import java.util.concurrent.ConcurrentHashMap;
  23 import java.util.concurrent.ConcurrentLinkedQueue;
  24 import java.util.concurrent.ConcurrentMap;
  25
  26 import com.owncloud.android.R;
  27 import com.owncloud.android.datamodel.FileDataStorageManager;
  28 import com.owncloud.android.lib.common.OwnCloudClientFactory;
  29 import com.owncloud.android.lib.common.OwnCloudClient;
  30 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  31 import com.owncloud.android.lib.common.operations.RemoteOperation;
  32 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  33 import com.owncloud.android.lib.resources.files.ExistenceCheckRemoteOperation;
  34 import com.owncloud.android.lib.resources.shares.ShareType;
  35 import com.owncloud.android.lib.resources.users.GetRemoteUserNameOperation;
  36 import com.owncloud.android.operations.common.SyncOperation;
  37 import com.owncloud.android.operations.CreateShareOperation;
  38 import com.owncloud.android.operations.GetServerInfoOperation;
  39 import com.owncloud.android.operations.OAuth2GetAccessToken;
  40 import com.owncloud.android.operations.RenameFileOperation;
  41 import com.owncloud.android.operations.UnshareLinkOperation;
  42 import com.owncloud.android.utils.Log_OC;
  43
  44 import android.accounts.Account;
  45 import android.accounts.AccountsException;
  46 import android.app.Service;
  47 import android.content.Intent;
  48 import android.net.Uri;
  49 import android.os.Binder;
  50 import android.os.Handler;
  51 import android.os.HandlerThread;
  52 import android.os.IBinder;
  53 import android.os.Looper;
  54 import android.os.Message;
  55 import android.os.Process;
  56 import android.util.Pair;
  57
  58 public class OperationsService extends Service {
  59
  60     private static final String TAG = OperationsService.class.getSimpleName();
  61
  62     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  63     public static final String EXTRA_SERVER_URL = "SERVER_URL";
  64     public static final String EXTRA_AUTH_TOKEN_TYPE = "AUTH_TOKEN_TYPE";
  65     public static final String EXTRA_OAUTH2_QUERY_PARAMETERS = "OAUTH2_QUERY_PARAMETERS";
  66     public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
  67     public static final String EXTRA_SEND_INTENT = "SEND_INTENT";
  68     public static final String EXTRA_NEWNAME = "NEWNAME";
  69     public static final String EXTRA_RESULT = "RESULT";
  70
  71     // TODO review if ALL OF THEM are necessary
  72     public static final String EXTRA_WEBDAV_PATH = "WEBDAV_PATH";
  73     public static final String EXTRA_SUCCESS_IF_ABSENT = "SUCCESS_IF_ABSENT";
  74     public static final String EXTRA_USERNAME = "USERNAME";
  75     public static final String EXTRA_PASSWORD = "PASSWORD";
  76     public static final String EXTRA_AUTH_TOKEN = "AUTH_TOKEN";
  77     public static final String EXTRA_FOLLOW_REDIRECTS = "FOLLOW_REDIRECTS";
  78     public static final String EXTRA_COOKIE = "COOKIE";
  79
  80     public static final String ACTION_CREATE_SHARE = "CREATE_SHARE";
  81     public static final String ACTION_UNSHARE = "UNSHARE";
  82     public static final String ACTION_GET_SERVER_INFO = "GET_SERVER_INFO";
  83     public static final String ACTION_OAUTH2_GET_ACCESS_TOKEN = "OAUTH2_GET_ACCESS_TOKEN";
  84     public static final String ACTION_EXISTENCE_CHECK = "EXISTENCE_CHECK";
  85     public static final String ACTION_GET_USER_NAME = "GET_USER_NAME";
  86     public static final String ACTION_RENAME = "RENAME";
  87
  88     public static final String ACTION_OPERATION_ADDED = OperationsService.class.getName() + ".OPERATION_ADDED";
  89     public static final String ACTION_OPERATION_FINISHED = OperationsService.class.getName() + ".OPERATION_FINISHED";
  90
  91     private ConcurrentLinkedQueue<Pair<Target, RemoteOperation>> mPendingOperations =
  92             new ConcurrentLinkedQueue<Pair<Target, RemoteOperation>>();
  93
  94     /*
  95     private ConcurrentMap<Integer, RemoteOperationResult> mOperationResults =
  96             new ConcurrentHashMap<Integer, RemoteOperationResult>();
  97      */
  98
  99     private ConcurrentMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>
 100         mUndispatchedFinishedOperations =
 101             new ConcurrentHashMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>();
 102
 103     private static class Target {
 104         public Uri mServerUrl = null;
 105         public Account mAccount = null;
 106         public String mWebDavUrl = null;
 107         public String mUsername = null;
 108         public String mPassword = null;
 109         public String mAuthToken = null;
 110         public boolean mFollowRedirects = true;
 111         public String mCookie = null;
 112
 113         public Target(Account account, Uri serverUrl, String webdavUrl, String username, String password, String authToken,
 114                 boolean followRedirects, String cookie) {
 115             mAccount = account;
 116             mServerUrl = serverUrl;
 117             mWebDavUrl = webdavUrl;
 118             mUsername = username;
 119             mPassword = password;
 120             mAuthToken = authToken;
 121             mFollowRedirects = followRedirects;
 122             mCookie = cookie;
 123         }
 124     }
 125
 126     private Looper mServiceLooper;
 127     private ServiceHandler mServiceHandler;
 128     private OperationsServiceBinder mBinder;
 129     private OwnCloudClient mOwnCloudClient = null;
 130     private Target mLastTarget = null;
 131     private FileDataStorageManager mStorageManager;
 132     private RemoteOperation mCurrentOperation = null;
 133
 134
 135     /**
 136      * Service initialization
 137      */
 138     @Override
 139     public void onCreate() {
 140         super.onCreate();
 141         HandlerThread thread = new HandlerThread("Operations service thread", Process.THREAD_PRIORITY_BACKGROUND);
 142         thread.start();
 143         mServiceLooper = thread.getLooper();
 144         mServiceHandler = new ServiceHandler(mServiceLooper, this);
 145         mBinder = new OperationsServiceBinder();
 146     }
 147
 148
 149     /**
 150      * Entry point to add a new operation to the queue of operations.
 151      *
 152      * New operations are added calling to startService(), resulting in a call to this method.
 153      * This ensures the service will keep on working although the caller activity goes away.
 154      *
 155      * IMPORTANT: the only operations performed here right now is {@link GetSharedFilesOperation}. The class
 156      * is taking advantage of it due to time constraints.
 157      */
 158     @Override
 159     public int onStartCommand(Intent intent, int flags, int startId) {
 160         //Log_OC.wtf(TAG, "onStartCommand init" );
 161         Message msg = mServiceHandler.obtainMessage();
 162         msg.arg1 = startId;
 163         mServiceHandler.sendMessage(msg);
 164         //Log_OC.wtf(TAG, "onStartCommand end" );
 165         return START_NOT_STICKY;
 166     }
 167
 168     @Override
 169     public void onDestroy() {
 170         //Log_OC.wtf(TAG, "onDestroy init" );
 171         super.onDestroy();
 172         //Log_OC.wtf(TAG, "Clear mUndispatchedFinisiedOperations" );
 173         mUndispatchedFinishedOperations.clear();
 174         //Log_OC.wtf(TAG, "onDestroy end" );
 175     }
 176
 177
 178     /**
 179      * Provides a binder object that clients can use to perform actions on the queue of operations,
 180      * except the addition of new operations.
 181      */
 182     @Override
 183     public IBinder onBind(Intent intent) {
 184         //Log_OC.wtf(TAG, "onBind" );
 185         return mBinder;
 186     }
 187
 188
 189     /**
 190      * Called when ALL the bound clients were unbound.
 191      */
 192     @Override
 193     public boolean onUnbind(Intent intent) {
 194         ((OperationsServiceBinder)mBinder).clearListeners();
 195         return false;   // not accepting rebinding (default behaviour)
 196     }
 197
 198
 199     /**
 200      *  Binder to let client components to perform actions on the queue of operations.
 201      *
 202      *  It provides by itself the available operations.
 203      */
 204     public class OperationsServiceBinder extends Binder /* implements OnRemoteOperationListener */ {
 205
 206         /**
 207          * Map of listeners that will be reported about the end of operations from a {@link OperationsServiceBinder} instance
 208          */
 209         private ConcurrentMap<OnRemoteOperationListener, Handler> mBoundListeners =
 210                 new ConcurrentHashMap<OnRemoteOperationListener, Handler>();
 211
 212         /**
 213          * Cancels an operation
 214          *
 215          * TODO
 216          */
 217         public void cancel() {
 218             // TODO
 219         }
 220
 221
 222         public void clearListeners() {
 223
 224             mBoundListeners.clear();
 225         }
 226
 227
 228         /**
 229          * Adds a listener interested in being reported about the end of operations.
 230          *
 231          * @param listener          Object to notify about the end of operations.
 232          * @param callbackHandler   {@link Handler} to access the listener without breaking Android threading protection.
 233          */
 234         public void addOperationListener (OnRemoteOperationListener listener, Handler callbackHandler) {
 235             synchronized (mBoundListeners) {
 236                 mBoundListeners.put(listener, callbackHandler);
 237             }
 238         }
 239
 240
 241         /**
 242          * Removes a listener from the list of objects interested in the being reported about the end of operations.
 243          *
 244          * @param listener      Object to notify about progress of transfer.
 245          */
 246         public void removeOperationListener (OnRemoteOperationListener listener) {
 247             synchronized (mBoundListeners) {
 248                 mBoundListeners.remove(listener);
 249             }
 250         }
 251
 252
 253         /**
 254          * TODO - IMPORTANT: update implementation when more operations are moved into the service
 255          *
 256          * @return  'True' when an operation that enforces the user to wait for completion is in process.
 257          */
 258         public boolean isPerformingBlockingOperation() {
 259             return (!mPendingOperations.isEmpty());
 260         }
 261
 262
 263         /**
 264          * Creates and adds to the queue a new operation, as described by operationIntent
 265          *
 266          * @param operationIntent       Intent describing a new operation to queue and execute.
 267          * @return                      Identifier of the operation created, or null if failed.
 268          */
 269         public long newOperation(Intent operationIntent) {
 270             RemoteOperation operation = null;
 271             Target target = null;
 272             try {
 273                 if (!operationIntent.hasExtra(EXTRA_ACCOUNT) &&
 274                         !operationIntent.hasExtra(EXTRA_SERVER_URL)) {
 275                     Log_OC.e(TAG, "Not enough information provided in intent");
 276
 277                 } else {
 278                     Account account = operationIntent.getParcelableExtra(EXTRA_ACCOUNT);
 279                     String serverUrl = operationIntent.getStringExtra(EXTRA_SERVER_URL);
 280                     String webDavPath = operationIntent.getStringExtra(EXTRA_WEBDAV_PATH);
 281                     String webDavUrl = serverUrl + webDavPath;
 282                     String username = operationIntent.getStringExtra(EXTRA_USERNAME);
 283                     String password = operationIntent.getStringExtra(EXTRA_PASSWORD);
 284                     String authToken = operationIntent.getStringExtra(EXTRA_AUTH_TOKEN);
 285                     boolean followRedirects = operationIntent.getBooleanExtra(EXTRA_FOLLOW_REDIRECTS, true);
 286                     String cookie = operationIntent.getStringExtra(EXTRA_COOKIE);
 287                     target = new Target(
 288                             account,
 289                             (serverUrl == null) ? null : Uri.parse(serverUrl),
 290                             ((webDavPath == null) || (serverUrl == null)) ? null : webDavUrl,
 291                             username,
 292                             password,
 293                             authToken,
 294                             followRedirects,
 295                             cookie
 296                     );
 297
 298                     String action = operationIntent.getAction();
 299                     if (action.equals(ACTION_CREATE_SHARE)) {  // Create Share
 300                         String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 301                         Intent sendIntent = operationIntent.getParcelableExtra(EXTRA_SEND_INTENT);
 302                         if (remotePath.length() > 0) {
 303                             operation = new CreateShareOperation(remotePath, ShareType.PUBLIC_LINK,
 304                                     "", false, "", 1, sendIntent);
 305                         }
 306
 307                     } else if (action.equals(ACTION_UNSHARE)) {  // Unshare file
 308                         String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 309                         if (remotePath.length() > 0) {
 310                             operation = new UnshareLinkOperation(
 311                                     remotePath,
 312                                     OperationsService.this);
 313                         }
 314
 315                     } else if (action.equals(ACTION_GET_SERVER_INFO)) {
 316                         // check OC server and get basic information from it
 317                         String authTokenType =
 318                                 operationIntent.getStringExtra(EXTRA_AUTH_TOKEN_TYPE);
 319                         operation = new GetServerInfoOperation(
 320                                 serverUrl, authTokenType, OperationsService.this);
 321
 322                     } else if (action.equals(ACTION_OAUTH2_GET_ACCESS_TOKEN)) {
 323                         /// GET ACCESS TOKEN to the OAuth server
 324                         String oauth2QueryParameters =
 325                                 operationIntent.getStringExtra(EXTRA_OAUTH2_QUERY_PARAMETERS);
 326                         operation = new OAuth2GetAccessToken(
 327                                 getString(R.string.oauth2_client_id),
 328                                 getString(R.string.oauth2_redirect_uri),
 329                                 getString(R.string.oauth2_grant_type),
 330                                 oauth2QueryParameters);
 331
 332                     } else if (action.equals(ACTION_EXISTENCE_CHECK)) {
 333                         // Existence Check
 334                         String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 335                         boolean successIfAbsent = operationIntent.getBooleanExtra(EXTRA_SUCCESS_IF_ABSENT, true);
 336                         operation = new ExistenceCheckRemoteOperation(remotePath, OperationsService.this, successIfAbsent);
 337
 338                     } else if (action.equals(ACTION_GET_USER_NAME)) {
 339                         // Get User Name
 340                         operation = new GetRemoteUserNameOperation();
 341
 342                     } else if (action.equals(ACTION_RENAME)) {
 343                         // Rename file or folder
 344                         String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 345                         String newName = operationIntent.getStringExtra(EXTRA_NEWNAME);
 346                         operation = new RenameFileOperation(remotePath, account, newName);
 347                     }
 348                 }
 349
 350             } catch (IllegalArgumentException e) {
 351                 Log_OC.e(TAG, "Bad information provided in intent: " + e.getMessage());
 352                 operation = null;
 353             }
 354
 355             if (operation != null) {
 356                 mPendingOperations.add(new Pair<Target , RemoteOperation>(target, operation));
 357                 startService(new Intent(OperationsService.this, OperationsService.class));
 358                 //Log_OC.wtf(TAG, "New operation added, opId: " + operation.hashCode());
 359                 // better id than hash? ; should be good enough by the time being
 360                 return operation.hashCode();
 361
 362             } else {
 363                 //Log_OC.wtf(TAG, "New operation failed, returned Long.MAX_VALUE");
 364                 return Long.MAX_VALUE;
 365             }
 366         }
 367
 368         public void dispatchResultIfFinished(int operationId, OnRemoteOperationListener listener) {
 369             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 370                     mUndispatchedFinishedOperations.remove(operationId);
 371             if (undispatched != null) {
 372                 listener.onRemoteOperationFinish(undispatched.first, undispatched.second);
 373                 //Log_OC.wtf(TAG, "Sending callback later");
 374             } else {
 375                 //Log_OC.wtf(TAG, "Not finished yet");
 376             }
 377         }
 378
 379     }
 380
 381
 382     /**
 383      * Operations worker. Performs the pending operations in the order they were requested.
 384      *
 385      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 386      */
 387     private static class ServiceHandler extends Handler {
 388         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 389         OperationsService mService;
 390         public ServiceHandler(Looper looper, OperationsService service) {
 391             super(looper);
 392             if (service == null) {
 393                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 394             }
 395             mService = service;
 396         }
 397
 398         @Override
 399         public void handleMessage(Message msg) {
 400             mService.nextOperation();
 401             mService.stopSelf(msg.arg1);
 402         }
 403     }
 404
 405
 406     /**
 407      * Performs the next operation in the queue
 408      */
 409     private void nextOperation() {
 410
 411         //Log_OC.wtf(TAG, "nextOperation init" );
 412
 413         Pair<Target, RemoteOperation> next = null;
 414         synchronized(mPendingOperations) {
 415             next = mPendingOperations.peek();
 416         }
 417
 418         if (next != null) {
 419
 420             mCurrentOperation = next.second;
 421             RemoteOperationResult result = null;
 422             try {
 423                 /// prepare client object to send the request to the ownCloud server
 424                 if (mLastTarget == null || !mLastTarget.equals(next.first)) {
 425                     mLastTarget = next.first;
 426                     if (mLastTarget.mAccount != null) {
 427                         mOwnCloudClient = OwnCloudClientFactory.createOwnCloudClient(mLastTarget.mAccount, getApplicationContext());
 428                         mStorageManager = new FileDataStorageManager(mLastTarget.mAccount, getContentResolver());
 429                     } else {
 430                         mOwnCloudClient = OwnCloudClientFactory.createOwnCloudClient(mLastTarget.mServerUrl, getApplicationContext(),
 431                                 mLastTarget.mFollowRedirects);    // this is not good enough
 432                         if (mLastTarget.mWebDavUrl != null) {
 433                             mOwnCloudClient.setWebdavUri(Uri.parse(mLastTarget.mWebDavUrl));
 434                         }
 435                         if (mLastTarget.mUsername != null && mLastTarget.mPassword != null) {
 436                             mOwnCloudClient.setBasicCredentials(mLastTarget.mUsername, mLastTarget.mPassword);
 437                         } else if (mLastTarget.mAuthToken != null) {
 438                             mOwnCloudClient.setBearerCredentials(mLastTarget.mAuthToken);
 439                         } else if (mLastTarget.mCookie != null) {
 440                             mOwnCloudClient.setSsoSessionCookie(mLastTarget.mCookie);
 441                         }
 442                         mStorageManager = null;
 443                     }
 444                 }
 445
 446                 /// perform the operation
 447                 if (mCurrentOperation instanceof SyncOperation) {
 448                     result = ((SyncOperation)mCurrentOperation).execute(mOwnCloudClient, mStorageManager);
 449                 } else {
 450                     result = mCurrentOperation.execute(mOwnCloudClient);
 451                 }
 452
 453             } catch (AccountsException e) {
 454                 if (mLastTarget.mAccount == null) {
 455                     Log_OC.e(TAG, "Error while trying to get autorization for a NULL account", e);
 456                 } else {
 457                     Log_OC.e(TAG, "Error while trying to get autorization for " + mLastTarget.mAccount.name, e);
 458                 }
 459                 result = new RemoteOperationResult(e);
 460
 461             } catch (IOException e) {
 462                 if (mLastTarget.mAccount == null) {
 463                     Log_OC.e(TAG, "Error while trying to get autorization for a NULL account", e);
 464                 } else {
 465                     Log_OC.e(TAG, "Error while trying to get autorization for " + mLastTarget.mAccount.name, e);
 466                 }
 467                 result = new RemoteOperationResult(e);
 468             } catch (Exception e) {
 469                 if (mLastTarget.mAccount == null) {
 470                     Log_OC.e(TAG, "Unexpected error for a NULL account", e);
 471                 } else {
 472                     Log_OC.e(TAG, "Unexpected error for " + mLastTarget.mAccount.name, e);
 473                 }
 474                 result = new RemoteOperationResult(e);
 475
 476             } finally {
 477                 synchronized(mPendingOperations) {
 478                     mPendingOperations.poll();
 479                 }
 480             }
 481
 482             //sendBroadcastOperationFinished(mLastTarget, mCurrentOperation, result);
 483             dispatchResultToOperationListeners(mLastTarget, mCurrentOperation, result);
 484         }
 485     }
 486
 487
 488     /**
 489      * Sends a broadcast when a new operation is added to the queue.
 490      *
 491      * Local broadcasts are only delivered to activities in the same process, but can't be done sticky :\
 492      *
 493      * @param target            Account or URL pointing to an OC server.
 494      * @param operation         Added operation.
 495      */
 496     private void sendBroadcastNewOperation(Target target, RemoteOperation operation) {
 497         Intent intent = new Intent(ACTION_OPERATION_ADDED);
 498         if (target.mAccount != null) {
 499             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 500         } else {
 501             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 502         }
 503         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 504         //lbm.sendBroadcast(intent);
 505         sendStickyBroadcast(intent);
 506     }
 507
 508
 509     // TODO - maybe add a notification for real start of operations
 510
 511     /**
 512      * Sends a LOCAL broadcast when an operations finishes in order to the interested activities can update their view
 513      *
 514      * Local broadcasts are only delivered to activities in the same process.
 515      *
 516      * @param target            Account or URL pointing to an OC server.
 517      * @param operation         Finished operation.
 518      * @param result            Result of the operation.
 519      */
 520     private void sendBroadcastOperationFinished(Target target, RemoteOperation operation, RemoteOperationResult result) {
 521         Intent intent = new Intent(ACTION_OPERATION_FINISHED);
 522         intent.putExtra(EXTRA_RESULT, result);
 523         if (target.mAccount != null) {
 524             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 525         } else {
 526             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 527         }
 528         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 529         //lbm.sendBroadcast(intent);
 530         sendStickyBroadcast(intent);
 531     }
 532
 533
 534     /**
 535      * Notifies the currently subscribed listeners about the end of an operation.
 536      *
 537      * @param target            Account or URL pointing to an OC server.
 538      * @param operation         Finished operation.
 539      * @param result            Result of the operation.
 540      */
 541     private void dispatchResultToOperationListeners(
 542             Target target, final RemoteOperation operation, final RemoteOperationResult result) {
 543         int count = 0;
 544         Iterator<OnRemoteOperationListener> listeners = mBinder.mBoundListeners.keySet().iterator();
 545         while (listeners.hasNext()) {
 546             final OnRemoteOperationListener listener = listeners.next();
 547             final Handler handler = mBinder.mBoundListeners.get(listener);
 548             if (handler != null) {
 549                 handler.post(new Runnable() {
 550                     @Override
 551                     public void run() {
 552                         listener.onRemoteOperationFinish(operation, result);
 553                     }
 554                 });
 555                 count += 1;
 556             }
 557         }
 558         if (count == 0) {
 559             //mOperationResults.put(operation.hashCode(), result);
 560             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 561                     new Pair<RemoteOperation, RemoteOperationResult>(operation, result);
 562             mUndispatchedFinishedOperations.put(operation.hashCode(), undispatched);
 563         }
 564         Log_OC.d(TAG, "Called " + count + " listeners");
 565     }
 566
 567
 568 }