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am d4cbc4fd: Implement getting data files with protocol v2 

* commit 'd4cbc4fd078cbb23be4eafe1cb82a8a470fca3a0':
  Implement getting data files with protocol v2
main
Jean Chalard 2013-02-15 19:41:27 -08:00 committed by Android Git Automerger
parent 9cf5e32879 d4cbc4fd07
commit a2f89c525d
1 changed files with 56 additions and 27 deletions
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67
java/src/com/android/inputmethod/latin/BinaryDictionaryFileDumper.java
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@ -74,6 +74,8 @@ public final class BinaryDictionaryFileDumper {
// The path fragment to append after the client ID for dictionary info requests.
private static final String QUERY_PATH_DICT_INFO = "dict";
// The path fragment to append after the client ID for dictionary datafile requests.
private static final String QUERY_PATH_DATAFILE = "datafile";
// The path fragment to append after the client ID for updating the metadata URI.
private static final String QUERY_PATH_METADATA = "metadata";
private static final String INSERT_METADATA_CLIENT_ID_COLUMN = "clientid";
@ -156,7 +158,7 @@ public final class BinaryDictionaryFileDumper {
c.close();
return Collections.<WordListInfo>emptyList();
}
final List<WordListInfo> list = CollectionUtils.newArrayList();
final ArrayList<WordListInfo> list = CollectionUtils.newArrayList();
do {
final String wordListId = c.getString(0);
final String wordListLocale = c.getString(1);
@ -186,13 +188,18 @@ public final class BinaryDictionaryFileDumper {
/**
* Helper method to encapsulate exception handling.
*/
private static AssetFileDescriptor openAssetFileDescriptor(final ContentResolver resolver,
final Uri uri) {
private static AssetFileDescriptor openAssetFileDescriptor(
final ContentProviderClient providerClient, final Uri uri) {
try {
return resolver.openAssetFileDescriptor(uri, "r");
return providerClient.openAssetFile(uri, "r");
} catch (FileNotFoundException e) {
// I don't want to log the word list URI here for security concerns
Log.e(TAG, "Could not find a word list from the dictionary provider.");
// I don't want to log the word list URI here for security concerns. The exception
// contains the name of the file, so let's not pass it to Log.e here.
Log.e(TAG, "Could not find a word list from the dictionary provider."
/* intentionally don't pass the exception (see comment above) */);
return null;
} catch (RemoteException e) {
Log.e(TAG, "Can't communicate with the dictionary pack", e);
return null;
}
}
@ -202,9 +209,8 @@ public final class BinaryDictionaryFileDumper {
* to the cache file name designated by its id and locale, overwriting it if already present
* and creating it (and its containing directory) if necessary.
*/
private static AssetFileAddress cacheWordList(final String id, final String locale,
final ContentResolver resolver, final Context context) {
private static AssetFileAddress cacheWordList(final String wordlistId, final String locale,
final ContentProviderClient providerClient, final Context context) {
final int COMPRESSED_CRYPTED_COMPRESSED = 0;
final int CRYPTED_COMPRESSED = 1;
final int COMPRESSED_CRYPTED = 2;
@ -214,11 +220,20 @@ public final class BinaryDictionaryFileDumper {
final int MODE_MIN = COMPRESSED_CRYPTED_COMPRESSED;
final int MODE_MAX = NONE;
final Uri.Builder wordListUriBuilder = getProviderUriBuilder(id);
final String finalFileName = DictionaryInfoUtils.getCacheFileName(id, locale, context);
final String clientId = context.getString(R.string.dictionary_pack_client_id);
final Uri.Builder wordListUriBuilder;
try {
wordListUriBuilder = getContentUriBuilderForType(clientId,
providerClient, QUERY_PATH_DATAFILE, wordlistId /* extraPath */);
} catch (RemoteException e) {
Log.e(TAG, "Can't communicate with the dictionary pack", e);
return null;
}
final String finalFileName =
DictionaryInfoUtils.getCacheFileName(wordlistId, locale, context);
String tempFileName;
try {
tempFileName = BinaryDictionaryGetter.getTempFileName(id, context);
tempFileName = BinaryDictionaryGetter.getTempFileName(wordlistId, context);
} catch (IOException e) {
Log.e(TAG, "Can't open the temporary file", e);
return null;
@ -236,7 +251,7 @@ public final class BinaryDictionaryFileDumper {
final Uri wordListUri = wordListUriBuilder.build();
try {
// Open input.
afd = openAssetFileDescriptor(resolver, wordListUri);
afd = openAssetFileDescriptor(providerClient, wordListUri);
// If we can't open it at all, don't even try a number of times.
if (null == afd) return null;
originalSourceStream = afd.createInputStream();
@ -284,10 +299,10 @@ public final class BinaryDictionaryFileDumper {
}
wordListUriBuilder.appendQueryParameter(QUERY_PARAMETER_DELETE_RESULT,
QUERY_PARAMETER_SUCCESS);
if (0 >= resolver.delete(wordListUriBuilder.build(), null, null)) {
if (0 >= providerClient.delete(wordListUriBuilder.build(), null, null)) {
Log.e(TAG, "Could not have the dictionary pack delete a word list");
}
BinaryDictionaryGetter.removeFilesWithIdExcept(context, id, finalFile);
BinaryDictionaryGetter.removeFilesWithIdExcept(context, wordlistId, finalFile);
// Success! Close files (through the finally{} clause) and return.
return AssetFileAddress.makeFromFileName(finalFileName);
} catch (Exception e) {
@ -327,9 +342,13 @@ public final class BinaryDictionaryFileDumper {
// as invalid.
wordListUriBuilder.appendQueryParameter(QUERY_PARAMETER_DELETE_RESULT,
QUERY_PARAMETER_FAILURE);
if (0 >= resolver.delete(wordListUriBuilder.build(), null, null)) {
try {
if (0 >= providerClient.delete(wordListUriBuilder.build(), null, null)) {
Log.e(TAG, "In addition, we were unable to delete it.");
}
} catch (RemoteException e) {
Log.e(TAG, "In addition, communication with the dictionary provider was cut", e);
}
return null;
}
@ -345,17 +364,27 @@ public final class BinaryDictionaryFileDumper {
*/
public static List<AssetFileAddress> cacheWordListsFromContentProvider(final Locale locale,
final Context context, final boolean hasDefaultWordList) {
final ContentResolver resolver = context.getContentResolver();
final ContentProviderClient providerClient = context.getContentResolver().
acquireContentProviderClient(getProviderUriBuilder("").build());
if (null == providerClient) {
Log.e(TAG, "Can't establish communication with the dictionary provider");
return CollectionUtils.newArrayList();
}
try {
final List<WordListInfo> idList = getWordListWordListInfos(locale, context,
hasDefaultWordList);
final List<AssetFileAddress> fileAddressList = CollectionUtils.newArrayList();
final ArrayList<AssetFileAddress> fileAddressList = CollectionUtils.newArrayList();
for (WordListInfo id : idList) {
final AssetFileAddress afd = cacheWordList(id.mId, id.mLocale, resolver, context);
final AssetFileAddress afd =
cacheWordList(id.mId, id.mLocale, providerClient, context);
if (null != afd) {
fileAddressList.add(afd);
}
}
return fileAddressList;
} finally {
providerClient.release();
}
}
/**