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metadata_parser_filebase.h

// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_PARSERS_METADATA_PARSER_FILEBASE_H_
#define CHROME_BROWSER_PARSERS_METADATA_PARSER_FILEBASE_H_

#include "chrome/browser/parsers/metadata_parser.h"

typedef base::hash_map<std::string, std::string> PropertyMap;

// Parser for the file type. Allows for parsing of files, and gets
// properties assiciated with files.
class FileMetadataParser : public MetadataParser {
 public:
  explicit FileMetadataParser(const FilePath& path);

  // Implementation of MetadataParser
  virtual bool Parse();
  virtual bool GetProperty(const std::string& key, std::string* value);

  MetadataPropertyIterator* GetPropertyIterator();

 protected:
  PropertyMap properties_;
  FilePath path_;

 private:
  DISALLOW_COPY_AND_ASSIGN(FileMetadataParser);
};

class FileMetadataPropertyIterator : public MetadataPropertyIterator {
 public:
  explicit FileMetadataPropertyIterator(PropertyMap& properties);

  // Implementation of MetadataPropertyIterator
  virtual bool GetNext(std::string* key, std::string* value);
  virtual int Length();
  virtual bool IsEnd();

 private:
  PropertyMap& properties_;
  PropertyMap::iterator it;

  DISALLOW_COPY_AND_ASSIGN(FileMetadataPropertyIterator);
};

#endif  // CHROME_BROWSER_PARSERS_METADATA_PARSER_FILEBASE_H_

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