Add spellcheck and word suggestion to the prediction service

third_party/android_prediction/suggest/policyimpl/dictionary/structure/v4/ver4_dict_buffers.h

Index: third_party/android_prediction/suggest/policyimpl/dictionary/structure/v4/ver4_dict_buffers.h
diff --git a/third_party/android_prediction/suggest/policyimpl/dictionary/structure/v4/ver4_dict_buffers.h b/third_party/android_prediction/suggest/policyimpl/dictionary/structure/v4/ver4_dict_buffers.h
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index 0000000000000000000000000000000000000000..721c9d419c2c62f7b401a286fbd5e742ee335589
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+++ b/third_party/android_prediction/suggest/policyimpl/dictionary/structure/v4/ver4_dict_buffers.h
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2013, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LATINIME_VER4_DICT_BUFFER_H
+#define LATINIME_VER4_DICT_BUFFER_H
+
+#include <cstdio>
+#include <memory>
+
+#include "third_party/android_prediction/defines.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/header/header_policy.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/v4/content/bigram_dict_content.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/v4/content/language_model_dict_content.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/v4/content/shortcut_dict_content.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/v4/content/terminal_position_lookup_table.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/v4/ver4_dict_constants.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/utils/mmapped_buffer.h"
+
+namespace latinime {
+
+class Ver4DictBuffers {
+ public:
+    typedef std::unique_ptr<Ver4DictBuffers> Ver4DictBuffersPtr;
+
+    static Ver4DictBuffersPtr openVer4DictBuffers(const char *const dictDirPath,
+            MmappedBuffer::MmappedBufferPtr &&headerBuffer,
+            const FormatUtils::FORMAT_VERSION formatVersion);
+
+    static AK_FORCE_INLINE Ver4DictBuffersPtr createVer4DictBuffers(
+            const HeaderPolicy *const headerPolicy, const int maxTrieSize) {
+        return Ver4DictBuffersPtr(new Ver4DictBuffers(headerPolicy, maxTrieSize));
+    }
+
+    AK_FORCE_INLINE bool isValid() const {
+        return mHeaderBuffer && mDictBuffer && mHeaderPolicy.isValid();
+    }
+
+    AK_FORCE_INLINE bool isNearSizeLimit() const {
+        return mExpandableTrieBuffer.isNearSizeLimit()
+                || mTerminalPositionLookupTable.isNearSizeLimit()
+                || mLanguageModelDictContent.isNearSizeLimit()
+                || mBigramDictContent.isNearSizeLimit()
+                || mShortcutDictContent.isNearSizeLimit();
+    }
+
+    AK_FORCE_INLINE const HeaderPolicy *getHeaderPolicy() const {
+        return &mHeaderPolicy;
+    }
+
+    AK_FORCE_INLINE BufferWithExtendableBuffer *getWritableHeaderBuffer() {
+        return &mExpandableHeaderBuffer;
+    }
+
+    AK_FORCE_INLINE BufferWithExtendableBuffer *getWritableTrieBuffer() {
+        return &mExpandableTrieBuffer;
+    }
+
+    AK_FORCE_INLINE const BufferWithExtendableBuffer *getTrieBuffer() const {
+        return &mExpandableTrieBuffer;
+    }
+
+    AK_FORCE_INLINE TerminalPositionLookupTable *getMutableTerminalPositionLookupTable() {
+        return &mTerminalPositionLookupTable;
+    }
+
+    AK_FORCE_INLINE const TerminalPositionLookupTable *getTerminalPositionLookupTable() const {
+        return &mTerminalPositionLookupTable;
+    }
+
+    AK_FORCE_INLINE LanguageModelDictContent *getMutableLanguageModelDictContent() {
+        return &mLanguageModelDictContent;
+    }
+
+    AK_FORCE_INLINE const LanguageModelDictContent *getLanguageModelDictContent() const {
+        return &mLanguageModelDictContent;
+    }
+
+    AK_FORCE_INLINE BigramDictContent *getMutableBigramDictContent() {
+        return &mBigramDictContent;
+    }
+
+    AK_FORCE_INLINE const BigramDictContent *getBigramDictContent() const {
+        return &mBigramDictContent;
+    }
+
+    AK_FORCE_INLINE ShortcutDictContent *getMutableShortcutDictContent() {
+        return &mShortcutDictContent;
+    }
+
+    AK_FORCE_INLINE const ShortcutDictContent *getShortcutDictContent() const {
+        return &mShortcutDictContent;
+    }
+
+    AK_FORCE_INLINE bool isUpdatable() const {
+        return mIsUpdatable;
+    }
+
+    bool flush(const char *const dictDirPath) const {
+        return flushHeaderAndDictBuffers(dictDirPath, &mExpandableHeaderBuffer);
+    }
+
+    bool flushHeaderAndDictBuffers(const char *const dictDirPath,
+            const BufferWithExtendableBuffer *const headerBuffer) const;
+
+ private:
+    DISALLOW_COPY_AND_ASSIGN(Ver4DictBuffers);
+
+    Ver4DictBuffers(MmappedBuffer::MmappedBufferPtr &&headerBuffer,
+            MmappedBuffer::MmappedBufferPtr &&bodyBuffer,
+            const FormatUtils::FORMAT_VERSION formatVersion,
+            const std::vector<uint8_t *> &contentBuffers,
+            const std::vector<int> &contentBufferSizes);
+
+    Ver4DictBuffers(const HeaderPolicy *const headerPolicy, const int maxTrieSize);
+
+    bool flushDictBuffers(FILE *const file) const;
+
+    const MmappedBuffer::MmappedBufferPtr mHeaderBuffer;
+    const MmappedBuffer::MmappedBufferPtr mDictBuffer;
+    const HeaderPolicy mHeaderPolicy;
+    BufferWithExtendableBuffer mExpandableHeaderBuffer;
+    BufferWithExtendableBuffer mExpandableTrieBuffer;
+    TerminalPositionLookupTable mTerminalPositionLookupTable;
+    LanguageModelDictContent mLanguageModelDictContent;
+    BigramDictContent mBigramDictContent;
+    ShortcutDictContent mShortcutDictContent;
+    const int mIsUpdatable;
+};
+} // namespace latinime
+#endif /* LATINIME_VER4_DICT_BUFFER_H */