+/* ownCloud Android client application
+ * Copyright (C) 2015 ownCloud Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package com.owncloud.android.services;
+
+import android.accounts.Account;
+import android.accounts.AccountsException;
+import android.content.Intent;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.util.Pair;
+
+import com.owncloud.android.datamodel.FileDataStorageManager;
+import com.owncloud.android.datamodel.OCFile;
+import com.owncloud.android.files.services.FileDownloader;
+import com.owncloud.android.lib.common.OwnCloudAccount;
+import com.owncloud.android.lib.common.OwnCloudClient;
+import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
+import com.owncloud.android.lib.common.operations.RemoteOperationResult;
+import com.owncloud.android.lib.common.utils.Log_OC;
+import com.owncloud.android.operations.SynchronizeFolderOperation;
+import com.owncloud.android.utils.FileStorageUtils;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
+/**
+ * SyncFolder worker. Performs the pending operations in the order they were requested.
+ *
+ * Created with the Looper of a new thread, started in
+ * {@link com.owncloud.android.services.OperationsService#onCreate()}.
+ */
+class SyncFolderHandler extends Handler {
+
+ private static final String TAG = SyncFolderHandler.class.getSimpleName();
+
+
+ OperationsService mService;
+
+ private ConcurrentMap<String,SynchronizeFolderOperation> mPendingOperations =
+ new ConcurrentHashMap<String,SynchronizeFolderOperation>();
+ private OwnCloudClient mOwnCloudClient = null;
+ private FileDataStorageManager mStorageManager;
+ private SynchronizeFolderOperation mCurrentSyncOperation;
+
+
+ public SyncFolderHandler(Looper looper, OperationsService service) {
+ super(looper);
+ if (service == null) {
+ throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
+ }
+ mService = service;
+ }
+
+
+ public boolean isSynchronizing(Account account, String remotePath) {
+ if (account == null || remotePath == null) return false;
+ String targetKey = buildRemoteName(account, remotePath);
+ synchronized (mPendingOperations) {
+ // TODO - this can be slow when synchronizing a big tree - need a better data structure
+ Iterator<String> it = mPendingOperations.keySet().iterator();
+ boolean found = false;
+ while (it.hasNext() && !found) {
+ found = it.next().startsWith(targetKey);
+ }
+ return found;
+ }
+ }
+
+
+ @Override
+ public void handleMessage(Message msg) {
+ Pair<Account, String> itemSyncKey = (Pair<Account, String>) msg.obj;
+ doOperation(itemSyncKey.first, itemSyncKey.second);
+ mService.stopSelf(msg.arg1);
+ }
+
+
+ /**
+ * Performs the next operation in the queue
+ */
+ private void doOperation(Account account, String remotePath) {
+
+ String syncKey = buildRemoteName(account,remotePath);
+
+ synchronized(mPendingOperations) {
+ mCurrentSyncOperation = mPendingOperations.get(syncKey);
+ }
+
+ if (mCurrentSyncOperation != null) {
+ RemoteOperationResult result = null;
+
+ try {
+
+ OwnCloudAccount ocAccount = new OwnCloudAccount(account, mService);
+ mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
+ getClientFor(ocAccount, mService);
+ mStorageManager = new FileDataStorageManager(
+ account,
+ mService.getContentResolver()
+ );
+
+ result = mCurrentSyncOperation.execute(mOwnCloudClient, mStorageManager);
+
+ } catch (AccountsException e) {
+ Log_OC.e(TAG, "Error while trying to get autorization", e);
+ } catch (IOException e) {
+ Log_OC.e(TAG, "Error while trying to get autorization", e);
+ } finally {
+ synchronized (mPendingOperations) {
+ mPendingOperations.remove(syncKey);
+ /*
+ SynchronizeFolderOperation checkedOp = mCurrentSyncOperation;
+ String checkedKey = syncKey;
+ while (checkedOp.getPendingChildrenCount() <= 0) {
+ // while (!checkedOp.hasChildren()) {
+ mPendingOperations.remove(checkedKey);
+ String parentKey = buildRemoteName(account, (new File(checkedOp.getFolderPath())).getParent());
+ // String parentKey = buildRemoteName(account, checkedOp.getParentPath());
+ SynchronizeFolderOperation parentOp = mPendingOperations.get(parentKey);
+ if (parentOp != null) {
+ parentOp.decreasePendingChildrenCount();
+ }
+ }
+ */
+ }
+
+ mService.dispatchResultToOperationListeners(null, mCurrentSyncOperation, result);
+
+ sendBroadcastFinishedSyncFolder(account, remotePath, result.isSuccess());
+ }
+ }
+ }
+
+ public void add(Account account, String remotePath, SynchronizeFolderOperation syncFolderOperation){
+ String syncKey = buildRemoteName(account,remotePath);
+ mPendingOperations.putIfAbsent(syncKey,syncFolderOperation);
+ sendBroadcastNewSyncFolder(account, remotePath);
+ }
+
+ /**
+ * Cancels sync operations.
+ * @param account Owncloud account where the remote file is stored.
+ * @param file File OCFile
+ */
+ public void cancel(Account account, OCFile file){
+ SynchronizeFolderOperation syncOperation = null;
+ String targetKey = buildRemoteName(account, file.getRemotePath());
+ ArrayList<String> keyItems = new ArrayList<String>();
+ synchronized (mPendingOperations) {
+ if (file.isFolder()) {
+ Log_OC.d(TAG, "Canceling pending sync operations");
+ Iterator<String> it = mPendingOperations.keySet().iterator();
+ boolean found = false;
+ while (it.hasNext()) {
+ String keySyncOperation = it.next();
+ found = keySyncOperation.startsWith(targetKey);
+ if (found) {
+ keyItems.add(keySyncOperation);
+ }
+ }
+
+ } else {
+ // this is not really expected...
+ Log_OC.d(TAG, "Canceling sync operation");
+ keyItems.add(buildRemoteName(account, file.getRemotePath()));
+ }
+ for (String item: keyItems) {
+ syncOperation = mPendingOperations.remove(item);
+ if (syncOperation != null) {
+ syncOperation.cancel();
+ }
+ }
+ }
+
+ //sendBroadcastFinishedSyncFolder(account, file.getRemotePath());
+ }
+
+ /**
+ * Builds a key from the account and file to download
+ *
+ * @param account Account where the file to download is stored
+ * @param path File path
+ */
+ private String buildRemoteName(Account account, String path) {
+ return account.name + path;
+ }
+
+
+ /**
+ * TODO review this method when "folder synchronization" replaces "folder download"; this is a fast and ugly
+ * patch.
+ */
+ private void sendBroadcastNewSyncFolder(Account account, String remotePath) {
+ Intent added = new Intent(FileDownloader.getDownloadAddedMessage());
+ added.putExtra(FileDownloader.ACCOUNT_NAME, account.name);
+ added.putExtra(FileDownloader.EXTRA_REMOTE_PATH, remotePath);
+ added.putExtra(FileDownloader.EXTRA_FILE_PATH, FileStorageUtils.getSavePath(account.name) + remotePath);
+ mService.sendStickyBroadcast(added);
+ }
+
+ /**
+ * TODO review this method when "folder synchronization" replaces "folder download"; this is a fast and ugly
+ * patch.
+ */
+ private void sendBroadcastFinishedSyncFolder(Account account, String remotePath, boolean success) {
+ Intent finished = new Intent(FileDownloader.getDownloadFinishMessage());
+ finished.putExtra(FileDownloader.ACCOUNT_NAME, account.name);
+ finished.putExtra(FileDownloader.EXTRA_REMOTE_PATH, remotePath);
+ finished.putExtra(FileDownloader.EXTRA_FILE_PATH, FileStorageUtils.getSavePath(account.name) + remotePath);
+ finished.putExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, success);
+ mService.sendStickyBroadcast(finished);
+ }
+
+
+}