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Merge "Determine the protocol version of the dictionary pack"

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This commit is contained in:
Jean Chalard 2013-02-14 20:22:09 +00:00 committed by Android (Google) Code Review
commit 4beaab2a88
1 changed files with 45 additions and 15 deletions
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60
java/src/com/android/inputmethod/latin/BinaryDictionaryFileDumper.java
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@ -95,6 +95,35 @@ public final class BinaryDictionaryFileDumper {
path);
}
/**
* Gets the content URI builder for a specified type.
*
* Supported types include QUERY_PATH_DICT_INFO, which takes the locale as
* the extraPath argument, and QUERY_PATH_DATAFILE, which needs a wordlist ID
* as the extraPath argument.
*
* @param clientId the clientId to use
* @param contentProviderClient the instance of content provider client
* @param queryPathType the path element encoding the type
* @param extraPath optional extra argument for this type (typically word list id)
* @return a builder that can build the URI for the best supported protocol version
* @throws RemoteException if the client can't be contacted
*/
private static Uri.Builder getContentUriBuilderForType(final String clientId,
final ContentProviderClient contentProviderClient, final String queryPathType,
final String extraPath) throws RemoteException {
// Check whether protocol v2 is supported by building a v2 URI and calling getType()
// on it. If this returns null, v2 is not supported.
final Uri.Builder uriV2Builder = getProviderUriBuilder(clientId);
uriV2Builder.appendPath(queryPathType);
uriV2Builder.appendPath(extraPath);
uriV2Builder.appendQueryParameter(QUERY_PARAMETER_PROTOCOL,
QUERY_PARAMETER_PROTOCOL_VALUE);
if (null != contentProviderClient.getType(uriV2Builder.build())) return uriV2Builder;
// Protocol v2 is not supported, so create and return the protocol v1 uri.
return getProviderUriBuilder(extraPath);
}
/**
* Queries a content provider for the list of word lists for a specific locale
* available to copy into Latin IME.
@ -102,26 +131,27 @@ public final class BinaryDictionaryFileDumper {
private static List<WordListInfo> getWordListWordListInfos(final Locale locale,
final Context context, final boolean hasDefaultWordList) {
final String clientId = context.getString(R.string.dictionary_pack_client_id);
final Uri.Builder builder = getProviderUriBuilder(clientId);
builder.appendPath(QUERY_PATH_DICT_INFO);
builder.appendPath(locale.toString());
builder.appendQueryParameter(QUERY_PARAMETER_PROTOCOL, QUERY_PARAMETER_PROTOCOL_VALUE);
if (!hasDefaultWordList) {
builder.appendQueryParameter(QUERY_PARAMETER_MAY_PROMPT_USER,
QUERY_PARAMETER_TRUE);
}
final Uri dictionaryPackUri = builder.build();
final ContentProviderClient client = context.getContentResolver().
acquireContentProviderClient(getProviderUriBuilder("").build());
if (null == client) return Collections.<WordListInfo>emptyList();
try {
final Cursor c = client.query(dictionaryPackUri, DICTIONARY_PROJECTION, null, null,
null);
if (null == c) {
reinitializeClientRecordInDictionaryContentProvider(context, client, clientId);
return Collections.<WordListInfo>emptyList();
final Uri.Builder builder = getContentUriBuilderForType(clientId, client,
QUERY_PATH_DICT_INFO, locale.toString());
if (!hasDefaultWordList) {
builder.appendQueryParameter(QUERY_PARAMETER_MAY_PROMPT_USER,
QUERY_PARAMETER_TRUE);
}
final Uri queryUri = builder.build();
final boolean isProtocolV2 = (QUERY_PARAMETER_PROTOCOL_VALUE.equals(
queryUri.getQueryParameter(QUERY_PARAMETER_PROTOCOL)));
Cursor c = client.query(queryUri, DICTIONARY_PROJECTION, null, null, null);
if (isProtocolV2 && null == c) {
reinitializeClientRecordInDictionaryContentProvider(context, client, clientId);
c = client.query(queryUri, DICTIONARY_PROJECTION, null, null, null);
}
if (null == c) return Collections.<WordListInfo>emptyList();
if (c.getCount() <= 0 || !c.moveToFirst()) {
c.close();
return Collections.<WordListInfo>emptyList();