mirror of
https://gitee.com/openharmony/ability_idl_tool
synced 2024-11-27 09:31:11 +00:00
78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
/*
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* Copyright (c) 2022 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "metadata/metadata_reader.h"
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#include "metadata/metadata_serializer.h"
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#include "util/file.h"
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#include "util/logger.h"
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namespace OHOS {
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namespace Idl {
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const char* MetadataReader::tag = "MetadataReader";
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std::shared_ptr<MetaComponent> MetadataReader::ReadMetadataFromFile(const String& filePath)
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{
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File file(filePath, File::READ);
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if (!file.IsValid()) {
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Logger::E(tag, "Open \"%s\" file failed.", filePath.string());
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return nullptr;
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}
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if (!file.Reset()) {
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Logger::E(tag, "Reset \"%s\" file failed.", filePath.string());
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return nullptr;
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}
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MetaComponent header;
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if (!file.ReadData((void*)&header, sizeof(MetaComponent))) {
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Logger::E(tag, "Read \"%s\" file failed.", filePath.string());
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return nullptr;
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}
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if (header.magic_ != METADATA_MAGIC_NUMBER || header.size_ < 0) {
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Logger::E(tag, "The metadata in \"%s\" file is bad.", filePath.string());
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return nullptr;
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}
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if (!file.Reset()) {
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Logger::E(tag, "Reset \"%s\" file failed.", filePath.string());
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return nullptr;
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}
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void* data = malloc(header.size_);
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if (data == nullptr) {
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Logger::E(tag, "Malloc metadata failed.");
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return nullptr;
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}
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if (!file.ReadData(data, header.size_)) {
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Logger::E(tag, "Read \"%s\" file failed.", filePath.string());
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free(data);
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return nullptr;
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}
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std::shared_ptr<MetaComponent> metadata(
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(MetaComponent*)data, [](MetaComponent* p) { free(p); });
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MetadataSerializer serializer((uintptr_t)data);
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serializer.Deserialize();
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return metadata;
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}
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} // namespace Idl
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} // namespace OHOS
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