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      1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_PARSERS_METADATA_PARSER_FILEBASE_H_
      6 #define CHROME_BROWSER_PARSERS_METADATA_PARSER_FILEBASE_H_
      7 #pragma once
      8 
      9 #include <string>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/file_path.h"
     13 #include "base/hash_tables.h"
     14 #include "chrome/browser/parsers/metadata_parser.h"
     15 
     16 typedef base::hash_map<std::string, std::string> PropertyMap;
     17 
     18 // Parser for the file type. Allows for parsing of files, and gets
     19 // properties associated with files.
     20 class FileMetadataParser : public MetadataParser {
     21  public:
     22   explicit FileMetadataParser(const FilePath& path);
     23 
     24   virtual ~FileMetadataParser();
     25 
     26   // Implementation of MetadataParser
     27   virtual bool Parse();
     28   virtual bool GetProperty(const std::string& key, std::string* value);
     29 
     30   virtual MetadataPropertyIterator* GetPropertyIterator();
     31 
     32  protected:
     33   PropertyMap properties_;
     34   FilePath path_;
     35 
     36  private:
     37   DISALLOW_COPY_AND_ASSIGN(FileMetadataParser);
     38 };
     39 
     40 class FileMetadataPropertyIterator : public MetadataPropertyIterator {
     41  public:
     42   explicit FileMetadataPropertyIterator(PropertyMap& properties);
     43 
     44   virtual ~FileMetadataPropertyIterator();
     45 
     46   // Implementation of MetadataPropertyIterator
     47   virtual bool GetNext(std::string* key, std::string* value);
     48   virtual int Length();
     49   virtual bool IsEnd();
     50 
     51  private:
     52   PropertyMap& properties_;
     53   PropertyMap::iterator it;
     54 
     55   DISALLOW_COPY_AND_ASSIGN(FileMetadataPropertyIterator);
     56 };
     57 
     58 #endif  // CHROME_BROWSER_PARSERS_METADATA_PARSER_FILEBASE_H_
     59