| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.contacts.vcard; |
| |
| import android.accounts.Account; |
| import android.content.ContentResolver; |
| import android.net.Uri; |
| import android.util.Log; |
| |
| import com.android.contactsbind.FeedbackHelper; |
| import com.android.vcard.VCardEntry; |
| import com.android.vcard.VCardEntryCommitter; |
| import com.android.vcard.VCardEntryConstructor; |
| import com.android.vcard.VCardEntryHandler; |
| import com.android.vcard.VCardInterpreter; |
| import com.android.vcard.VCardParser; |
| import com.android.vcard.VCardParser_V21; |
| import com.android.vcard.VCardParser_V30; |
| import com.android.vcard.exception.VCardException; |
| import com.android.vcard.exception.VCardNotSupportedException; |
| import com.android.vcard.exception.VCardVersionException; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Class for processing one import request from a user. Dropped after importing requested Uri(s). |
| * {@link VCardService} will create another object when there is another import request. |
| */ |
| public class ImportProcessor extends ProcessorBase implements VCardEntryHandler { |
| private static final String LOG_TAG = "VCardImport"; |
| private static final boolean DEBUG = VCardService.DEBUG; |
| |
| private final VCardService mService; |
| private final ContentResolver mResolver; |
| private final ImportRequest mImportRequest; |
| private final int mJobId; |
| private final VCardImportExportListener mListener; |
| |
| // TODO: remove and show appropriate message instead. |
| private final List<Uri> mFailedUris = new ArrayList<Uri>(); |
| |
| private VCardParser mVCardParser; |
| |
| private volatile boolean mCanceled; |
| private volatile boolean mDone; |
| |
| private int mCurrentCount = 0; |
| private int mTotalCount = 0; |
| |
| public ImportProcessor(final VCardService service, final VCardImportExportListener listener, |
| final ImportRequest request, final int jobId) { |
| mService = service; |
| mResolver = mService.getContentResolver(); |
| mListener = listener; |
| |
| mImportRequest = request; |
| mJobId = jobId; |
| } |
| |
| @Override |
| public void onStart() { |
| // do nothing |
| } |
| |
| @Override |
| public void onEnd() { |
| // do nothing |
| } |
| |
| @Override |
| public void onEntryCreated(VCardEntry entry) { |
| mCurrentCount++; |
| if (mListener != null) { |
| mListener.onImportParsed(mImportRequest, mJobId, entry, mCurrentCount, mTotalCount); |
| } |
| } |
| |
| @Override |
| public final int getType() { |
| return VCardService.TYPE_IMPORT; |
| } |
| |
| @Override |
| public void run() { |
| // ExecutorService ignores RuntimeException, so we need to show it here. |
| try { |
| runInternal(); |
| |
| if (isCancelled() && mListener != null) { |
| mListener.onImportCanceled(mImportRequest, mJobId); |
| } |
| } catch (OutOfMemoryError|RuntimeException e) { |
| FeedbackHelper.sendFeedback(mService, LOG_TAG, "Vcard import failed", e); |
| } finally { |
| synchronized (this) { |
| mDone = true; |
| } |
| } |
| } |
| |
| private void runInternal() { |
| Log.i(LOG_TAG, String.format("vCard import (id: %d) has started.", mJobId)); |
| final ImportRequest request = mImportRequest; |
| if (isCancelled()) { |
| Log.i(LOG_TAG, "Canceled before actually handling parameter (" + request.uri + ")"); |
| return; |
| } |
| final int[] possibleVCardVersions; |
| if (request.vcardVersion == ImportVCardActivity.VCARD_VERSION_AUTO_DETECT) { |
| /** |
| * Note: this code assumes that a given Uri is able to be opened more than once, |
| * which may not be true in certain conditions. |
| */ |
| possibleVCardVersions = new int[] { |
| ImportVCardActivity.VCARD_VERSION_V21, |
| ImportVCardActivity.VCARD_VERSION_V30 |
| }; |
| } else { |
| possibleVCardVersions = new int[] { |
| request.vcardVersion |
| }; |
| } |
| |
| final Uri uri = request.uri; |
| final Account account = request.account; |
| final int estimatedVCardType = request.estimatedVCardType; |
| final String estimatedCharset = request.estimatedCharset; |
| final int entryCount = request.entryCount; |
| mTotalCount += entryCount; |
| |
| final VCardEntryConstructor constructor = |
| new VCardEntryConstructor(estimatedVCardType, account, estimatedCharset); |
| final VCardEntryCommitter committer = new VCardEntryCommitter(mResolver); |
| constructor.addEntryHandler(committer); |
| constructor.addEntryHandler(this); |
| |
| InputStream is = null; |
| boolean successful = false; |
| try { |
| if (uri != null) { |
| Log.i(LOG_TAG, "start importing one vCard (Uri: " + uri + ")"); |
| is = mResolver.openInputStream(uri); |
| } else if (request.data != null){ |
| Log.i(LOG_TAG, "start importing one vCard (byte[])"); |
| is = new ByteArrayInputStream(request.data); |
| } |
| |
| if (is != null) { |
| successful = readOneVCard(is, estimatedVCardType, estimatedCharset, constructor, |
| possibleVCardVersions); |
| } |
| } catch (IOException e) { |
| successful = false; |
| } finally { |
| if (is != null) { |
| try { |
| is.close(); |
| } catch (Exception e) { |
| // ignore |
| } |
| } |
| } |
| |
| mService.handleFinishImportNotification(mJobId, successful); |
| |
| if (successful) { |
| // TODO: successful becomes true even when cancelled. Should return more appropriate |
| // value |
| if (isCancelled()) { |
| Log.i(LOG_TAG, "vCard import has been canceled (uri: " + uri + ")"); |
| // Cancel notification will be done outside this method. |
| } else { |
| Log.i(LOG_TAG, "Successfully finished importing one vCard file: " + uri); |
| List<Uri> uris = committer.getCreatedUris(); |
| if (mListener != null) { |
| if (uris != null && uris.size() == 1) { |
| mListener.onImportFinished(mImportRequest, mJobId, uris.get(0)); |
| } else { |
| if (uris == null || uris.size() == 0) { |
| // Not critical, but suspicious. |
| Log.w(LOG_TAG, "Created Uris is null or 0 length " + |
| "though the creation itself is successful."); |
| } |
| mListener.onImportFinished(mImportRequest, mJobId, null); |
| } |
| } |
| } |
| } else { |
| Log.w(LOG_TAG, "Failed to read one vCard file: " + uri); |
| mFailedUris.add(uri); |
| } |
| } |
| |
| private boolean readOneVCard(InputStream is, int vcardType, String charset, |
| final VCardInterpreter interpreter, |
| final int[] possibleVCardVersions) { |
| boolean successful = false; |
| final int length = possibleVCardVersions.length; |
| for (int i = 0; i < length; i++) { |
| final int vcardVersion = possibleVCardVersions[i]; |
| try { |
| if (i > 0 && (interpreter instanceof VCardEntryConstructor)) { |
| // Let the object clean up internal temporary objects, |
| ((VCardEntryConstructor) interpreter).clear(); |
| } |
| |
| // We need synchronized block here, |
| // since we need to handle mCanceled and mVCardParser at once. |
| // In the worst case, a user may call cancel() just before creating |
| // mVCardParser. |
| synchronized (this) { |
| mVCardParser = (vcardVersion == ImportVCardActivity.VCARD_VERSION_V30 ? |
| new VCardParser_V30(vcardType) : |
| new VCardParser_V21(vcardType)); |
| if (isCancelled()) { |
| Log.i(LOG_TAG, "ImportProcessor already recieves cancel request, so " + |
| "send cancel request to vCard parser too."); |
| mVCardParser.cancel(); |
| } |
| } |
| mVCardParser.parse(is, interpreter); |
| |
| successful = true; |
| break; |
| } catch (IOException|VCardNotSupportedException e) { |
| // VCardNestedException (a subclass of VCardNotSupportedException) should |
| // not be thrown here. We should instead handle it |
| // in the preprocessing session in ImportVCardActivity, as we don't try |
| // to detect the type of given vCard here. |
| // |
| // TODO: Handle this case appropriately, which should mean we have to have |
| // code trying to auto-detect the type of given vCard twice (both in |
| // ImportVCardActivity and ImportVCardService). |
| FeedbackHelper.sendFeedback(mService, LOG_TAG, "Failed to read vcard", e); |
| } catch (VCardVersionException e) { |
| if (i == length - 1) { |
| Log.e(LOG_TAG, "Appropriate version for this vCard is not found."); |
| } else { |
| // We'll try the other (v30) version. |
| } |
| } catch (VCardException e) { |
| Log.e(LOG_TAG, e.toString()); |
| } finally { |
| if (is != null) { |
| try { |
| is.close(); |
| } catch (IOException e) { |
| } |
| } |
| } |
| } |
| |
| return successful; |
| } |
| |
| @Override |
| public synchronized boolean cancel(boolean mayInterruptIfRunning) { |
| if (DEBUG) Log.d(LOG_TAG, "ImportProcessor received cancel request"); |
| if (mDone || mCanceled) { |
| return false; |
| } |
| mCanceled = true; |
| synchronized (this) { |
| if (mVCardParser != null) { |
| mVCardParser.cancel(); |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| public synchronized boolean isCancelled() { |
| return mCanceled; |
| } |
| |
| |
| @Override |
| public synchronized boolean isDone() { |
| return mDone; |
| } |
| } |