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Remove an updated dictionary that changed locales 

When a dictionary changes locale, we need to remove the file
that corresponds to the old version. It has a different path
than the new one, so we have to search for it explicitly.

Bug: 6540631
Change-Id: Ie9d63ba636651fe90f8fbb9627b7265ac7b34ccd
main
Jean Chalard 2012-05-23 14:41:50 +09:00
parent 37f81cd6e9
commit b9e2bce95e
2 changed files with 34 additions and 0 deletions
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1
java/src/com/android/inputmethod/latin/BinaryDictionaryFileDumper.java
View File

@ -193,6 +193,7 @@ public class BinaryDictionaryFileDumper {
if (0 >= resolver.delete(wordListUri, null, null)) {
Log.e(TAG, "Could not have the dictionary pack delete a word list");
}
BinaryDictionaryGetter.removeFilesWithIdExcept(context, id, outputFile);
// Success! Close files (through the finally{} clause) and return.
return AssetFileAddress.makeFromFileName(outputFileName);
} catch (Exception e) {

33
java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java
View File

@ -282,6 +282,39 @@ class BinaryDictionaryGetter {
return result;
}
/**
* Remove all files with the passed id, except the passed file.
*
* If a dictionary with a given ID has a metadata change that causes it to change
* path, we need to remove the old version. The only way to do this is to check all
* installed files for a matching ID in a different directory.
*/
public static void removeFilesWithIdExcept(final Context context, final String id,
final File fileToKeep) {
try {
final File canonicalFileToKeep = fileToKeep.getCanonicalFile();
final File[] directoryList = getCachedDirectoryList(context);
if (null == directoryList) return;
for (File directory : directoryList) {
// There is one directory per locale. See #getCachedDirectoryList
if (!directory.isDirectory()) continue;
final File[] wordLists = directory.listFiles();
if (null == wordLists) continue;
for (File wordList : wordLists) {
final String fileId = getWordListIdFromFileName(wordList.getName());
if (fileId.equals(id)) {
if (!canonicalFileToKeep.equals(wordList.getCanonicalFile())) {
wordList.delete();
}
}
}
}
} catch (java.io.IOException e) {
Log.e(TAG, "IOException trying to cleanup files : " + e);
}
}
/**
* Returns the id associated with the main word list for a specified locale.
*