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Track crashing during migration to avoid crash loop. DO NOT MERGE.

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Bug: 16213554
Bug: 16235703
Change-Id: Ib29b1a84b4c6ebae06d3dc6448f3c274ec6a7aab
(cherry picked from commit 1d6024d2f8)
This commit is contained in:
Keisuke Kuroyanagi 2014-07-14 16:25:55 +09:00 committed by Ken Wakasa
parent a2087e66e5
commit 05c70484a2
1 changed files with 29 additions and 11 deletions
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18
java/src/com/android/inputmethod/latin/BinaryDictionary.java
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@ -80,6 +80,7 @@ public final class BinaryDictionary extends Dictionary {
public static final int FORMAT_WORD_PROPERTY_COUNT_INDEX = 3; public static final int FORMAT_WORD_PROPERTY_COUNT_INDEX = 3;
public static final String DICT_FILE_NAME_SUFFIX_FOR_MIGRATION = ".migrate"; public static final String DICT_FILE_NAME_SUFFIX_FOR_MIGRATION = ".migrate";
public static final String DIR_NAME_SUFFIX_FOR_RECORD_MIGRATION = ".migrating";
private long mNativeDict; private long mNativeDict;
private final Locale mLocale; private final Locale mLocale;
@ -559,6 +560,20 @@ public final class BinaryDictionary extends Dictionary {
if (!isValidDictionary()) { if (!isValidDictionary()) {
return false; return false;
} }
final File isMigratingDir =
new File(mDictFilePath + DIR_NAME_SUFFIX_FOR_RECORD_MIGRATION);
if (isMigratingDir.exists()) {
isMigratingDir.delete();
Log.e(TAG, "Previous migration attempt failed probably due to a crash. "
+ "Giving up using the old dictionary (" + mDictFilePath + ").");
return false;
}
if (!isMigratingDir.mkdir()) {
Log.e(TAG, "Cannot create a dir (" + isMigratingDir.getAbsolutePath()
+ ") to record migration.");
return false;
}
try {
final String tmpDictFilePath = mDictFilePath + DICT_FILE_NAME_SUFFIX_FOR_MIGRATION; final String tmpDictFilePath = mDictFilePath + DICT_FILE_NAME_SUFFIX_FOR_MIGRATION;
if (!migrateNative(mNativeDict, tmpDictFilePath, newFormatVersion)) { if (!migrateNative(mNativeDict, tmpDictFilePath, newFormatVersion)) {
return false; return false;
@ -575,6 +590,9 @@ public final class BinaryDictionary extends Dictionary {
loadDictionary(dictFile.getAbsolutePath(), 0 /* startOffset */, loadDictionary(dictFile.getAbsolutePath(), 0 /* startOffset */,
dictFile.length(), mIsUpdatable); dictFile.length(), mIsUpdatable);
return true; return true;
} finally {
isMigratingDir.delete();
}
} }
@UsedForTesting @UsedForTesting