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Avoid an NPE 

Change-Id: I174eb8e92820fe6e7f8d3b89afae12d94063ef5d
main
Kurt Partridge 2013-06-03 15:52:22 -07:00
parent cbc7acb6f5
commit 5fc9d6cc04
1 changed files with 10 additions and 10 deletions
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20
java/src/com/android/inputmethod/research/ResearchLogger.java
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@ -854,23 +854,22 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
// The user has deleted this word and returned to the previous. Check that the word in the
// logUnit matches the expected word. If so, restore the last log unit committed to be the
// current logUnit. I.e., pull out the last LogUnit from all the LogBuffers, and make
// restore it to mCurrentLogUnit so the new edits are captured with the word. Optionally
// dump the contents of mCurrentLogUnit (useful if they contain deletions of the next word
// that should not be reported to protect user privacy)
// it the mCurrentLogUnit so the new edits are captured with the word. Optionally dump the
// contents of mCurrentLogUnit (useful if they contain deletions of the next word that
// should not be reported to protect user privacy)
//
// Note that we don't use mLastLogUnit here, because it only goes one word back and is only
// needed for reverts, which only happen one back.
final LogUnit oldLogUnit = mMainLogBuffer.peekLastLogUnit();
// Check that expected word matches.
// Check that expected word matches. It's ok if both strings are null, because this is the
// case where the LogUnit is storing a non-word, e.g. a separator.
if (oldLogUnit != null) {
final String oldLogUnitWords = oldLogUnit.getWordsAsString();
// Because the word is stored in the LogUnit with digits scrubbed, the comparison must
// be made on a scrubbed version of the expectedWord as well.
if (oldLogUnitWords != null && !oldLogUnitWords.equals(
scrubDigitsFromString(expectedWord))) {
return;
}
final String scrubbedExpectedWord = scrubDigitsFromString(expectedWord);
final String oldLogUnitWords = oldLogUnit.getWordsAsString();
if (!TextUtils.equals(scrubbedExpectedWord, oldLogUnitWords)) return;
}
// Uncommit, merging if necessary.
@ -986,7 +985,8 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
return Character.isDigit(codePoint) ? DIGIT_REPLACEMENT_CODEPOINT : codePoint;
}
/* package for test */ static String scrubDigitsFromString(String s) {
/* package for test */ static String scrubDigitsFromString(final String s) {
if (s == null) return null;
StringBuilder sb = null;
final int length = s.length();
for (int i = 0; i < length; i = s.offsetByCodePoints(i, 1)) {