metadata_parser_filebase.h revision 3345a6884c488ff3a535c2c9acdd33d74b37e311 
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
16typedef 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.
20class FileMetadataParser : public MetadataParser {
21 public:
22  explicit FileMetadataParser(const FilePath& path);
23
24  // Implementation of MetadataParser
25  virtual bool Parse();
26  virtual bool GetProperty(const std::string& key, std::string* value);
27
28  MetadataPropertyIterator* GetPropertyIterator();
29
30 protected:
31  PropertyMap properties_;
32  FilePath path_;
33
34 private:
35  DISALLOW_COPY_AND_ASSIGN(FileMetadataParser);
36};
37
38class FileMetadataPropertyIterator : public MetadataPropertyIterator {
39 public:
40  explicit FileMetadataPropertyIterator(PropertyMap& properties);
41
42  // Implementation of MetadataPropertyIterator
43  virtual bool GetNext(std::string* key, std::string* value);
44  virtual int Length();
45  virtual bool IsEnd();
46
47 private:
48  PropertyMap& properties_;
49  PropertyMap::iterator it;
50
51  DISALLOW_COPY_AND_ASSIGN(FileMetadataPropertyIterator);
52};
53
54#endif  // CHROME_BROWSER_PARSERS_METADATA_PARSER_FILEBASE_H_
55