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// Copyright 2016 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 MOJO_SERVICES_CATALOG_READER_H_
#define MOJO_SERVICES_CATALOG_READER_H_
#include "base/callback.h"
#include "base/files/file_path.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/values.h"
namespace base {
class TaskRunner;
}
namespace catalog {
class Entry;
// Encapsulates manifest reading.
class Reader {
public:
using ReadManifestCallback =
base::Callback<void(scoped_ptr<Entry> entry)>;
// Loads manifests relative to |package_path|. Performs file operations on
// |file_task_runner|.
Reader(const base::FilePath& package_path,
base::TaskRunner* file_task_runner);
~Reader();
// Attempts to load a manifest for |name|, and returns an Entry built from the
// metadata it contains via |callback|.
void Read(const std::string& name,
const ReadManifestCallback& callback);
private:
// Construct a manifest path for the application named |name| within
// |package_path_|.
base::FilePath GetManifestPath(const std::string& name) const;
base::FilePath package_path_;
base::TaskRunner* file_task_runner_;
base::WeakPtrFactory<Reader> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(Reader);
};
} // namespace catalog
#endif // MOJO_SERVICES_CATALOG_READER_H_
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