Add spellcheck and word suggestion to the prediction service

third_party/prediction/suggest/policyimpl/dictionary/utils/file_utils.h

+/*
+ * 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_FILE_UTILS_H
+#define LATINIME_FILE_UTILS_H
+
+#include "third_party/prediction/defines.h"
+
+namespace latinime {
+
+class FileUtils {
+ public:
+  // Returns -1 on error.
+  static int getFileSize(const char* const filePath);
+
+  static bool existsDir(const char* const dirPath);
+
+  // Remove a directory and all files in the directory.
+  static bool removeDirAndFiles(const char* const dirPath);
+
+  static int getFilePathWithSuffixBufSize(const char* const filePath,
+                                          const char* const suffix);
+
+  static void getFilePathWithSuffix(const char* const filePath,
+                                    const char* const suffix,
+                                    const int filePathBufSize,
+                                    char* const outFilePath);
+
+  static int getFilePathBufSize(const char* const dirPath,
+                                const char* const fileName);
+
+  static void getFilePath(const char* const dirPath,
+                          const char* const fileName,
+                          const int filePathBufSize,
+                          char* const outFilePath);
+
+  // Returns whether the filePath have the suffix.
+  static bool getFilePathWithoutSuffix(const char* const filePath,
+                                       const char* const suffix,
+                                       const int dirPathBufSize,
+                                       char* const outDirPath);
+
+  static void getDirPath(const char* const filePath,
+                         const int dirPathBufSize,
+                         char* const outDirPath);
+
+  static void getBasename(const char* const filePath,
+                          const int outNameBufSize,
+                          char* const outName);
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(FileUtils);
+
+  static bool removeDirAndFiles(const char* const dirPath, const int maxTries);
+};
+}  // namespace latinime
+#endif /* LATINIME_FILE_UTILS_H */