Get entry count after truncation using LanguageModelDictContent.

Bug: 14425059
Change-Id: I41b237c1c22c21740946d52e3be9d6f963c9cd54

native/jni/src/suggest/policyimpl/dictionary/structure/v4/content/language_model_dict_content.cpp

@@ -23,6 +23,9 @@
 
 namespace latinime {
 
+const int LanguageModelDictContent::UNIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE = 0;
+const int LanguageModelDictContent::BIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE = 1;
+
 bool LanguageModelDictContent::save(FILE *const file) const {
     return mTrieMap.save(file);
 }
@@ -78,12 +81,15 @@ LanguageModelDictContent::EntryRange LanguageModelDictContent::getProbabilityEnt
 }
 
 bool LanguageModelDictContent::truncateEntries(const int *const entryCounts,
-        const int *const maxEntryCounts, const HeaderPolicy *const headerPolicy) {
+        const int *const maxEntryCounts, const HeaderPolicy *const headerPolicy,
+        int *const outEntryCounts) {
     for (int i = 0; i <= MAX_PREV_WORD_COUNT_FOR_N_GRAM; ++i) {
         if (entryCounts[i] <= maxEntryCounts[i]) {
+            outEntryCounts[i] = entryCounts[i];
             continue;
         }
-        if (!turncateEntriesInSpecifiedLevel(headerPolicy, maxEntryCounts[i], i)) {
+        if (!turncateEntriesInSpecifiedLevel(headerPolicy, maxEntryCounts[i], i,
+                &outEntryCounts[i])) {
             return false;
         }
     }
@@ -185,7 +191,8 @@ bool LanguageModelDictContent::updateAllProbabilityEntriesInner(const int bitmap
 }
 
 bool LanguageModelDictContent::turncateEntriesInSpecifiedLevel(
-        const HeaderPolicy *const headerPolicy, const int maxEntryCount, const int targetLevel) {
+        const HeaderPolicy *const headerPolicy, const int maxEntryCount, const int targetLevel,
+        int *const outEntryCount) {
     std::vector<int> prevWordIds;
     std::vector<EntryInfoToTurncate> entryInfoVector;
     if (!getEntryInfo(headerPolicy, targetLevel, mTrieMap.getRootBitmapEntryIndex(),
@@ -193,8 +200,10 @@ bool LanguageModelDictContent::turncateEntriesInSpecifiedLevel(
         return false;
     }
     if (static_cast<int>(entryInfoVector.size()) <= maxEntryCount) {
+        *outEntryCount = static_cast<int>(entryInfoVector.size());
         return true;
     }
+    *outEntryCount = maxEntryCount;
     const int entryCountToRemove = static_cast<int>(entryInfoVector.size()) - maxEntryCount;
     std::partial_sort(entryInfoVector.begin(), entryInfoVector.begin() + entryCountToRemove,
             entryInfoVector.end(),

native/jni/src/suggest/policyimpl/dictionary/structure/v4/content/language_model_dict_content.h

@@ -39,6 +39,9 @@ class HeaderPolicy;
  */
 class LanguageModelDictContent {
  public:
+    static const int UNIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE;
+    static const int BIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE;
+
     // Pair of word id and probability entry used for iteration.
     class WordIdAndProbabilityEntry {
      public:
@@ -158,7 +161,7 @@ class LanguageModelDictContent {
 
     // entryCounts should be created by updateAllProbabilityEntries.
     bool truncateEntries(const int *const entryCounts, const int *const maxEntryCounts,
-            const HeaderPolicy *const headerPolicy);
+            const HeaderPolicy *const headerPolicy, int *const outEntryCounts);
 
  private:
     DISALLOW_COPY_AND_ASSIGN(LanguageModelDictContent);
@@ -197,7 +200,7 @@ class LanguageModelDictContent {
     bool updateAllProbabilityEntriesInner(const int bitmapEntryIndex, const int level,
             const HeaderPolicy *const headerPolicy, int *const outEntryCounts);
     bool turncateEntriesInSpecifiedLevel(const HeaderPolicy *const headerPolicy,
-            const int maxEntryCount, const int targetLevel);
+            const int maxEntryCount, const int targetLevel, int *const outEntryCount);
     bool getEntryInfo(const HeaderPolicy *const headerPolicy, const int targetLevel,
             const int bitmapEntryIndex, std::vector<int> *const prevWordIds,
             std::vector<EntryInfoToTurncate> *const outEntryInfo) const;

native/jni/src/suggest/policyimpl/dictionary/structure/v4/ver4_patricia_trie_writing_helper.cpp

@@ -93,14 +93,16 @@ bool Ver4PatriciaTrieWritingHelper::runGC(const int rootPtNodeArrayPos,
     }
     if (headerPolicy->isDecayingDict()) {
         int maxEntryCountTable[MAX_PREV_WORD_COUNT_FOR_N_GRAM + 1];
-        maxEntryCountTable[0] = headerPolicy->getMaxUnigramCount();
+        maxEntryCountTable[LanguageModelDictContent::UNIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE] =
-        maxEntryCountTable[1] = headerPolicy->getMaxBigramCount();
+                headerPolicy->getMaxUnigramCount();
+        maxEntryCountTable[LanguageModelDictContent::BIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE] =
+                headerPolicy->getMaxBigramCount();
         for (size_t i = 2; i < NELEMS(maxEntryCountTable); ++i) {
             // TODO: Have max n-gram count.
             maxEntryCountTable[i] = headerPolicy->getMaxBigramCount();
         }
         if (!mBuffers->getMutableLanguageModelDictContent()->truncateEntries(entryCountTable,
-                maxEntryCountTable,  headerPolicy)) {
+                maxEntryCountTable, headerPolicy, entryCountTable)) {
             AKLOGE("Failed to truncate entries in language model dict content.");
             return false;
         }
@@ -204,7 +206,10 @@ bool Ver4PatriciaTrieWritingHelper::runGC(const int rootPtNodeArrayPos,
             &traversePolicyToUpdateAllPtNodeFlagsAndTerminalIds)) {
         return false;
     }
-    *outUnigramCount = traversePolicyToUpdateAllPositionFields.getUnigramCount();
+    *outUnigramCount =
+            entryCountTable[LanguageModelDictContent::UNIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE];
+    *outBigramCount =
+            entryCountTable[LanguageModelDictContent::BIGRAM_COUNT_INDEX_IN_ENTRY_COUNT_TABLE];
     return true;
 }