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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 SERVICES_CATALOG_READER_H_
#define SERVICES_CATALOG_READER_H_
#include <map>
#include <memory>
#include <string>
#include "base/callback.h"
#include "base/files/file_path.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "services/catalog/types.h"
#include "services/service_manager/public/interfaces/resolver.mojom.h"
namespace base {
class SequencedWorkerPool;
class SingleThreadTaskRunner;
}
namespace catalog {
class Entry;
class ManifestProvider;
// Responsible for loading manifests & building the Entry data structures.
class Reader {
public:
using ReadManifestCallback = base::Callback<void(std::unique_ptr<Entry>)>;
using CreateEntryForNameCallback =
base::Callback<void(service_manager::mojom::ResolveResultPtr)>;
Reader(base::SequencedWorkerPool* worker_pool,
ManifestProvider* manifest_provider);
Reader(base::SingleThreadTaskRunner* task_runner,
ManifestProvider* manifest_provider);
~Reader();
// Scans the contents of |package_dir|, reading all application manifests and
// populating |cache|. Runs |read_complete_closure| when done.
void Read(const base::FilePath& package_dir,
EntryCache* cache,
const base::Closure& read_complete_closure);
// Returns an Entry for |mojo_name| via |callback|, assuming a manifest file
// in the canonical location
void CreateEntryForName(
const std::string& mojo_name,
EntryCache* cache,
const CreateEntryForNameCallback& entry_created_callback);
// Overrides the package name used for a specific service name.
void OverridePackageName(const std::string& service_name,
const std::string& package_name);
// Overrides the manifest path used for a specific service name.
void OverrideManifestPath(const std::string& service_name,
const base::FilePath& path);
private:
explicit Reader(ManifestProvider* manifest_provider);
void OnReadManifest(EntryCache* cache,
const CreateEntryForNameCallback& entry_created_callback,
std::unique_ptr<Entry> entry);
base::FilePath system_package_dir_;
scoped_refptr<base::TaskRunner> file_task_runner_;
ManifestProvider* const manifest_provider_;
std::map<std::string, std::string> package_name_overrides_;
std::map<std::string, base::FilePath> manifest_path_overrides_;
base::WeakPtrFactory<Reader> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(Reader);
};
} // namespace catalog
#endif // SERVICES_CATALOG_READER_H_