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      1 // Copyright (c) 2011 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 
      8 #include <string>
      9 
     10 #include "base/basictypes.h"
     11 #include "base/containers/hash_tables.h"
     12 #include "base/files/file_path.h"
     13 #include "chrome/browser/parsers/metadata_parser.h"
     14 
     15 typedef base::hash_map<std::string, std::string> PropertyMap;
     16 
     17 // Parser for the file type. Allows for parsing of files, and gets
     18 // properties associated with files.
     19 class FileMetadataParser : public MetadataParser {
     20  public:
     21   explicit FileMetadataParser(const base::FilePath& path);
     22 
     23   virtual ~FileMetadataParser();
     24 
     25   // Implementation of MetadataParser
     26   virtual bool Parse() OVERRIDE;
     27   virtual bool GetProperty(const std::string& key, std::string* value) OVERRIDE;
     28 
     29   virtual MetadataPropertyIterator* GetPropertyIterator() OVERRIDE;
     30 
     31  protected:
     32   PropertyMap properties_;
     33   base::FilePath path_;
     34 
     35  private:
     36   DISALLOW_COPY_AND_ASSIGN(FileMetadataParser);
     37 };
     38 
     39 class FileMetadataPropertyIterator : public MetadataPropertyIterator {
     40  public:
     41   explicit FileMetadataPropertyIterator(PropertyMap& properties);
     42 
     43   virtual ~FileMetadataPropertyIterator();
     44 
     45   // Implementation of MetadataPropertyIterator
     46   virtual bool GetNext(std::string* key, std::string* value) OVERRIDE;
     47   virtual int Length() OVERRIDE;
     48   virtual bool IsEnd() OVERRIDE;
     49 
     50  private:
     51   PropertyMap& properties_;
     52   PropertyMap::iterator it;
     53 
     54   DISALLOW_COPY_AND_ASSIGN(FileMetadataPropertyIterator);
     55 };
     56 
     57 #endif  // CHROME_BROWSER_PARSERS_METADATA_PARSER_FILEBASE_H_
     58