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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_VINTF_UTILS_H
#define ANDROID_VINTF_UTILS_H
#include <fstream>
#include <iostream>
#include <sstream>
#include <android-base/logging.h>
#include <utils/Errors.h>
#include <vintf/RuntimeInfo.h>
#include <vintf/parse_xml.h>
namespace android {
namespace vintf {
namespace details {
// Return the file from the given location as a string.
//
// This class can be used to create a mock for overriding.
class FileFetcher {
public:
virtual ~FileFetcher() {}
virtual status_t fetch(const std::string& path, std::string& fetched) {
std::ifstream in;
in.open(path);
if (!in.is_open()) {
LOG(WARNING) << "Cannot open " << path;
return INVALID_OPERATION;
}
std::stringstream ss;
ss << in.rdbuf();
fetched = ss.str();
return OK;
}
};
extern FileFetcher* gFetcher;
class PartitionMounter {
public:
virtual ~PartitionMounter() {}
virtual status_t mountSystem() const { return OK; }
virtual status_t mountVendor() const { return OK; }
virtual status_t umountSystem() const { return OK; }
virtual status_t umountVendor() const { return OK; }
};
extern PartitionMounter* gPartitionMounter;
template <typename T>
status_t fetchAllInformation(const std::string& path, const XmlConverter<T>& converter,
T* outObject) {
std::string info;
if (gFetcher == nullptr) {
// Should never happen.
return NO_INIT;
}
status_t result = gFetcher->fetch(path, info);
if (result != OK) {
return result;
}
bool success = converter(outObject, info);
if (!success) {
LOG(ERROR) << "Illformed file: " << path << ": "
<< converter.lastError();
return BAD_VALUE;
}
return OK;
}
template <typename T>
class ObjectFactory {
public:
virtual ~ObjectFactory() = default;
virtual std::shared_ptr<T> make_shared() const { return std::make_shared<T>(); }
};
extern ObjectFactory<RuntimeInfo>* gRuntimeInfoFactory;
} // namespace details
} // namespace vintf
} // namespace android
#endif
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