Add a method to update contextual dictionary.

Bug: 14161647
Change-Id: I2111f841c94e31d62b670da4236fc738df03a708

1 files changed, 40 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java b/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java
index e6e2bcbc7..05ebe1160 100644
--- a/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java
+++ b/java/src/com/android/inputmethod/latin/DictionaryFacilitator.java
@@ -351,6 +351,11 @@ public class DictionaryFacilitator {
         mDistracterFilter.close();
     }
 
+    @UsedForTesting
+    public ExpandableBinaryDictionary getSubDictForTesting(final String dictName) {
+        return mDictionaries.getSubDict(dictName);
+    }
+
     // The main dictionary could have been loaded asynchronously.  Don't cache the return value
     // of this method.
     public boolean hasInitializedMainDictionary() {
@@ -607,6 +612,41 @@ public class DictionaryFacilitator {
         personalizationDict.addMultipleDictionaryEntriesDynamically(languageModelParams, callback);
     }
 
+    public void addPhraseToContextualDictionary(final String[] phrase, final int probability,
+            final int bigramProbabilityForWords, final int bigramProbabilityForPhrases) {
+        final ExpandableBinaryDictionary contextualDict =
+                mDictionaries.getSubDict(Dictionary.TYPE_CONTEXTUAL);
+        if (contextualDict == null) {
+            return;
+        }
+        PrevWordsInfo prevWordsInfo = PrevWordsInfo.BEGINNING_OF_SENTENCE;
+        for (int i = 0; i < phrase.length; i++) {
+            if (i < phrase.length - 1) {
+                final String[] subPhrase =
+                        Arrays.copyOfRange(phrase, i /* start */, phrase.length);
+                final String subPhraseStr = TextUtils.join(Constants.WORD_SEPARATOR, subPhrase);
+                contextualDict.addUnigramEntryWithCheckingDistracter(
+                        subPhraseStr, probability, null /* shortcutTarget */,
+                        Dictionary.NOT_A_PROBABILITY /* shortcutFreq */,
+                        false /* isNotAWord */, false /* isBlacklisted */,
+                        BinaryDictionary.NOT_A_VALID_TIMESTAMP,
+                        DistracterFilter.EMPTY_DISTRACTER_FILTER);
+                contextualDict.addNgramEntry(prevWordsInfo, subPhraseStr,
+                        bigramProbabilityForPhrases, BinaryDictionary.NOT_A_VALID_TIMESTAMP);
+
+            }
+            contextualDict.addUnigramEntryWithCheckingDistracter(
+                    phrase[i], probability, null /* shortcutTarget */,
+                    Dictionary.NOT_A_PROBABILITY /* shortcutFreq */,
+                    false /* isNotAWord */, false /* isBlacklisted */,
+                    BinaryDictionary.NOT_A_VALID_TIMESTAMP,
+                    DistracterFilter.EMPTY_DISTRACTER_FILTER);
+            contextualDict.addNgramEntry(prevWordsInfo, phrase[i],
+                    bigramProbabilityForWords, BinaryDictionary.NOT_A_VALID_TIMESTAMP);
+            prevWordsInfo = new PrevWordsInfo(phrase[i]);
+        }
+    }
+
     public void dumpDictionaryForDebug(final String dictName) {
         final ExpandableBinaryDictionary dictToDump = mDictionaries.getSubDict(dictName);
         if (dictToDump == null) {