Add spellcheck and word suggestion to the prediction service

third_party/prediction/suggest/policyimpl/dictionary/structure/backward/v402/content/sparse_table_dict_content.h

Index: third_party/prediction/suggest/policyimpl/dictionary/structure/backward/v402/content/sparse_table_dict_content.h
diff --git a/third_party/prediction/suggest/policyimpl/dictionary/structure/backward/v402/content/sparse_table_dict_content.h b/third_party/prediction/suggest/policyimpl/dictionary/structure/backward/v402/content/sparse_table_dict_content.h
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+/*
+ * 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.
+ */
+
+/*
+ * !!!!! DO NOT EDIT THIS FILE !!!!!
+ *
+ * This file was generated from
+ *   third_party/prediction/suggest/policyimpl/dictionary/structure/v4/content/sparse_table_dict_content.h
+ */
+
+#ifndef LATINIME_BACKWARD_V402_SPARSE_TABLE_DICT_CONTENT_H
+#define LATINIME_BACKWARD_V402_SPARSE_TABLE_DICT_CONTENT_H
+
+#include "third_party/prediction/defines.h"
+#include "third_party/prediction/suggest/policyimpl/dictionary/structure/backward/v402/content/dict_content.h"
+#include "third_party/prediction/suggest/policyimpl/dictionary/structure/backward/v402/ver4_dict_constants.h"
+#include "third_party/prediction/suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
+#include "third_party/prediction/suggest/policyimpl/dictionary/utils/dict_file_writing_utils.h"
+#include "third_party/prediction/suggest/policyimpl/dictionary/utils/mmapped_buffer.h"
+#include "third_party/prediction/suggest/policyimpl/dictionary/utils/sparse_table.h"
+#include "third_party/prediction/utils/byte_array_view.h"
+
+namespace latinime {
+namespace backward {
+namespace v402 {
+
+// TODO: Support multiple contents.
+class SparseTableDictContent : public DictContent {
+ public:
+  AK_FORCE_INLINE SparseTableDictContent(const char* const dictPath,
+                                         const char* const lookupTableFileName,
+                                         const char* const addressTableFileName,
+                                         const char* const contentFileName,
+                                         const bool isUpdatable,
+                                         const int sparseTableBlockSize,
+                                         const int sparseTableDataSize)
+      : mLookupTableBuffer(MmappedBuffer::openBuffer(dictPath,
+                                                     lookupTableFileName,
+                                                     isUpdatable)),
+        mAddressTableBuffer(MmappedBuffer::openBuffer(dictPath,
+                                                      addressTableFileName,
+                                                      isUpdatable)),
+        mContentBuffer(
+            MmappedBuffer::openBuffer(dictPath, contentFileName, isUpdatable)),
+        mExpandableLookupTableBuffer(
+            mLookupTableBuffer ? mLookupTableBuffer->getReadWriteByteArrayView()
+                               : ReadWriteByteArrayView(),
+            BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE),
+        mExpandableAddressTableBuffer(
+            mAddressTableBuffer
+                ? mAddressTableBuffer->getReadWriteByteArrayView()
+                : ReadWriteByteArrayView(),
+            BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE),
+        mExpandableContentBuffer(
+            mContentBuffer ? mContentBuffer->getReadWriteByteArrayView()
+                           : ReadWriteByteArrayView(),
+            BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE),
+        mAddressLookupTable(&mExpandableLookupTableBuffer,
+                            &mExpandableAddressTableBuffer,
+                            sparseTableBlockSize,
+                            sparseTableDataSize),
+        mIsValid(mLookupTableBuffer && mAddressTableBuffer && mContentBuffer) {}
+
+  SparseTableDictContent(const int sparseTableBlockSize,
+                         const int sparseTableDataSize)
+      : mLookupTableBuffer(),
+        mAddressTableBuffer(),
+        mContentBuffer(),
+        mExpandableLookupTableBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE),
+        mExpandableAddressTableBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE),
+        mExpandableContentBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE),
+        mAddressLookupTable(&mExpandableLookupTableBuffer,
+                            &mExpandableAddressTableBuffer,
+                            sparseTableBlockSize,
+                            sparseTableDataSize),
+        mIsValid(true) {}
+
+  virtual ~SparseTableDictContent() {}
+
+  virtual bool isValid() const { return mIsValid; }
+
+  bool isNearSizeLimit() const {
+    return mExpandableLookupTableBuffer.isNearSizeLimit() ||
+           mExpandableAddressTableBuffer.isNearSizeLimit() ||
+           mExpandableContentBuffer.isNearSizeLimit();
+  }
+
+ protected:
+  SparseTable* getUpdatableAddressLookupTable() { return &mAddressLookupTable; }
+
+  const SparseTable* getAddressLookupTable() const {
+    return &mAddressLookupTable;
+  }
+
+  BufferWithExtendableBuffer* getWritableContentBuffer() {
+    return &mExpandableContentBuffer;
+  }
+
+  const BufferWithExtendableBuffer* getContentBuffer() const {
+    return &mExpandableContentBuffer;
+  }
+
+  bool flush(const char* const dictDirPath,
+             const char* const lookupTableFileName,
+             const char* const addressTableFileName,
+             const char* const contentFileName) const;
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(SparseTableDictContent);
+
+  const MmappedBuffer::MmappedBufferPtr mLookupTableBuffer;
+  const MmappedBuffer::MmappedBufferPtr mAddressTableBuffer;
+  const MmappedBuffer::MmappedBufferPtr mContentBuffer;
+  BufferWithExtendableBuffer mExpandableLookupTableBuffer;
+  BufferWithExtendableBuffer mExpandableAddressTableBuffer;
+  BufferWithExtendableBuffer mExpandableContentBuffer;
+  SparseTable mAddressLookupTable;
+  const bool mIsValid;
+};
+}  // namespace v402
+}  // namespace backward
+}  // namespace latinime
+#endif /* LATINIME_BACKWARD_V402_SPARSE_TABLE_DICT_CONTENT_H */