Adding a new parsing system to the metadata url request.

BUG=none
TEST=none
Original review: http://codereview.chromium.org/155803
Patch by: dhg@google.com

Review URL: http://codereview.chromium.org/160059

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@21469 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 40 insertions, 0 deletions

diff --git a/chrome/browser/parsers/metadata_parser_manager.h b/chrome/browser/parsers/metadata_parser_manager.h
new file mode 100644
index 0000000..3249eb2
--- /dev/null
+++ b/chrome/browser/parsers/metadata_parser_manager.h
@@ -0,0 +1,40 @@
+// 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_METADATA_PARSER_MANAGER_H_
+#define CHROME_BROWSER_METADATA_PARSER_MANAGER_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+
+class MetadataParserFactory;
+class FilePath;
+class MetadataParser;
+
+// Metadata Parser manager is used to find the correct parser for a
+// given file.  Allows parsers to register themselves.
+class MetadataParserManager {
+ public:
+  // Creates a new MetadataParserManager.
+  MetadataParserManager();
+  ~MetadataParserManager();
+
+  // Gets the singleton
+  static MetadataParserManager* Get();
+
+  // Adds a new Parser to the manager, when requests come in for a parser
+  // the manager will loop through the list of parsers, and query each.
+  bool RegisterParserFactory(MetadataParserFactory* parser);
+
+  // Returns a new metadata parser for a given file.
+  MetadataParser* GetParserForFile(const FilePath& path);
+
+ private:
+  std::vector<MetadataParserFactory*> factories_;
+
+  DISALLOW_COPY_AND_ASSIGN(MetadataParserManager);
+};
+
+#endif  // CHROME_BROWSER_METADATA_PARSER_MANAGER_H_