DEENESPTFRRUARHIKOZHNL

结构体 ara::diag::SovdBulkData::BulkDataMetaDataDescriptor

[SWS_DM_01830] Upstream: RS_Diag_04266

struct BulkDataMetaDataDescriptor {...};

Definition of bulk data Meta Data Descriptor.

Header-Datei#include "ara/diag/sovd_bulk_data.h"
Forwarding-Header#include "ara/diag/diag_fwd.h"
Scopeclass ara::diag::SovdBulkData

用户指南人工智能生成

在 SOVD 通信中为诊断海量数据提供元数据和完整性信息。
AI 生成 未审核 模型: gemini-3.8-flash-medium · 推理强度: medium · 温度: 不可控 · 提示词: 7c22095f2f08 来源 未决问题(3)
译自德文指南gemini-3.8-flash-low · 2026-10-13 · 德文原文

在 SOVD 通信中为诊断海量数据提供元数据和完整性信息。

结构 ara::diag::SovdBulkData::BulkDataMetaDataDescriptor 用作数据传输对象,用于描述 AUTOSAR Adaptive 中 SOVD 诊断通信的海量数据([SWS_DM_01830])。它捆绑了标识、本地化和类型信息,如 id、file_name 和 mimetype 以及校验和与可选的大小规范(SWS Diagnostics §8.53.2 “Struct: BulkDataMetaDataDescriptor”)。该实例由提供数据的诊断应用程序填充元数据并传递给 SOVD 子系统。作为没有自身同步机制的被动 C++ 结构,并发写访问必须由调用应用程序在外部进行保护。

上下文

数据结构 ara::diag::SovdBulkData::BulkDataMetaDataDescriptor 是 AUTOSAR Adaptive Platform 的 diag 模块的组成部分,并通过头文件 #include "ara/diag/sovd_bulk_data.h" 提供([SWS_DM_01830])。它定义了在 SOVD(Service-Oriented Vehicle Diagnostics)框架下传输的诊断海量数据(Bulk Data)的元数据描述符(SWS Diagnostics §8.53.2 “Struct: BulkDataMetaDataDescriptor”)。在读取大型日志文件、跟踪缓冲区或更新包等诊断场景中,诊断客户端除二进制数据流外,还需要结构化的附带信息。该结构将这些元数据打包,用于唯一标识、解释和完整性检查。

在诊断应用程序、运行时系统 ara::diag 和外部诊断测试仪之间的交互中,该结构充当被动数据传输对象(DTO)。字段 id 定义海量数据的唯一标识符([SWS_DM_01831])。在命名方面,file_name 用于文件名([SWS_DM_01836]),name 用于逻辑名称([SWS_DM_01833]),translation_id 用于本地化目的([SWS_DM_01834])。媒体类型由 mimetype 声明([SWS_DM_01832])。hash([SWS_DM_01839])和 hash_algorithm([SWS_DM_01840])用于确保完整性,而 creation_date([SWS_DM_01837])和 last_modified([SWS_DM_01838])定义时间归属(SWS Diagnostics §8.53.2.1 “Public Member Variables”)。

生命周期

作为 C++ 结构,BulkDataMetaDataDescriptor 仅具有公共属性,没有自己的业务逻辑构造函数([SWS_DM_01830])。解释:该结构可能主要由提供数据的诊断应用程序作为值对象在栈或堆上进行实例化并填充,以便随后传递给 SOVD 子系统。 问题 Q-4a0434afda63d047 (未决)生命周期遵循 C++ 对象的常规规则;在销毁实例时,类型为 ara::core::String 的所包含成员以及可选大小字段 ara::core::Optional<std::uint64_t> 会被确定性释放([SWS_DM_01835])。

该结构本身没有任何内部状态或状态转换。在多线程环境中,并发读取实例是非临界的;但是对公共变量的写访问必须由调用应用程序在外部进行同步,因为不存在内置的保护机制。

使用路径

在 SOVD 海量传输框架内使用元数据描述符的典型调用顺序分为以下步骤:

  1. 实例化:诊断应用程序创建 BulkDataMetaDataDescriptor 的实例([SWS_DM_01830])。
  2. 分配标识和命名:海量数据对象通过 id([SWS_DM_01831])、name([SWS_DM_01833])和 file_name([SWS_DM_01836])进行描述。需要时存储 translation_id([SWS_DM_01834])。
  3. 填充 MIME 类型和时间戳:格式使用 mimetype 指定([SWS_DM_01832])。在实践中,日期信息 creation_date([SWS_DM_01837])和 last_modified([SWS_DM_01838])可能被格式化为符合 ISO-8601 标准的时间戳字符串。 问题 Q-fa352dc221e9452a (未决)
  4. 记录校验值和字节大小:在生成有效负载后,将校验和填入 hash([SWS_DM_01839]),将算法填入 hash_algorithm([SWS_DM_01840])。如果字节数事先已知,则填充 size([SWS_DM_01835]);如果该可选字段保留为空,则可能表明在提供时文件大小仍可变。 问题 Q-03f717e53701c9c0 (未决)
  5. 移交给 SOVD 子系统:初始化的描述符被传递给 ara::diag,以便外部 SOVD 客户端可以获取元数据。
SOVD 上下文中 BulkDataMetaDataDescriptor 的使用流程应用BulkDataMetaDataDescriptorara::diag (SOVD)SOVD-ClientUse Case: 创建并填充元数据描述符InstanziierungSetzen von id, name, file_name, mimetypeBerechnung & Setzen von hash, hash_algorithmSetzen von creation_date, last_modified, sizeUse Case: 在 SOVD 子系统中注册传递描述符确认Use Case: Abfrage durch externen Diagnose-ClientMetadaten anfordern (SOVD)返回描述符元数据

时序图:在 SOVD 诊断上下文中创建、填充和提供 BulkDataMetaDataDescriptor 的典型流程。来源:SWS Diagnostics §8.53.2 “Struct: BulkDataMetaDataDescriptor”, [SWS_DM_01830]。

错误场景

由于 BulkDataMetaDataDescriptor 是一个被动数据结构,因此不会直接通过该结构返回错误代码。错误会在随后的 ara::diag 或客户端处理中显现:

  • 校验和差异:如果 hash([SWS_DM_01839])中指定的哈希与实际内容不匹配,或者 hash_algorithm([SWS_DM_01840])未知,则客户端处的验证将失败。
  • 字节大小偏差:如果设置了可选字段 size([SWS_DM_01835])且与实际接收到的字节数不同,接收方将报告传输错误。
  • 无效的媒体类型:错误或空的 mimetype([SWS_DM_01832])会导致客户端工具中的解释错误。
  • 缺少必填标识:如果未设置 id([SWS_DM_01831])或 file_name([SWS_DM_01836]),则无法在 SOVD 框架内唯一寻址该数据记录。

本指南基于 AUTOSAR Adaptive Platform Release R25-11 规范并自动生成。

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类图

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G nara__diag__SovdBulkData__BulkDataMetaDataDescriptor441 «struct» BulkDataMetaDataDescriptor + creation_date + file_name + hash + hash_algorithm + id + last_modified + mimetype + name … 2 weitere

详细视图

请在大纲中选择一个条目。

常量

Specifies the bulk data creation_date.

ara::core::String creation_date;
file_name 变量

Specifies the filename.

hash 变量

Specifies the bulk data hash.

Specifies the bulk data hash_algorithm.

ara::core::String hash_algorithm;
id 变量

Specifies the bulk data id.

Specifies the bulk data last_modified.

ara::core::String last_modified;
mimetype 变量

Specifies the bulk data mimetype.

name 变量

Specifies the bulk data name.

size 变量

Specifies the bulk data size in Byte.

Specifies the bulk data translation_id.

ara::core::String translation_id;

常量 / 变量文档

变量 creation_date [SWS_DM_01837] Upstream: RS_Diag_04266

ara::core::String creation_date;

Specifies the bulk data creation_date.

Header-Datei#include "ara/diag/sovd_bulk_data.h"
Scopestruct ara::diag::SovdBulkData::BulkDataMetaDataDescriptor
Symbolcreation_date
Typara::core::String

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Record
AUTOSAR/AP/record/SWS_DM_01837
Status
valid/unmigrated
Version
AUTOSAR/AP/record/SWS_DM_01837@rel:R25-11#e3a3465c
Content hash
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https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_01837
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  • R23-11rel:R23-11#fe9a952c2026-10-14
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变量 file_name [SWS_DM_01836] Upstream: RS_Diag_04266

ara::core::String file_name;

Specifies the filename.

Header-Datei#include "ara/diag/sovd_bulk_data.h"
Scopestruct ara::diag::SovdBulkData::BulkDataMetaDataDescriptor
Symbolfile_name
Typara::core::String

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Record
AUTOSAR/AP/record/SWS_DM_01836
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  • R25-11rel:R25-11#a0303a3c2026-09-30
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变量 hash [SWS_DM_01839] Upstream: RS_Diag_04266

ara::core::String hash;

Specifies the bulk data hash.

Header-Datei#include "ara/diag/sovd_bulk_data.h"
Scopestruct ara::diag::SovdBulkData::BulkDataMetaDataDescriptor
Symbolhash
Typara::core::String

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AUTOSAR/AP/record/SWS_DM_01839
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AUTOSAR/AP/record/SWS_DM_01839@rel:R25-11#a7263ee6
Content hash
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变量 hash_algorithm [SWS_DM_01840] Upstream: RS_Diag_04266

ara::core::String hash_algorithm;

Specifies the bulk data hash_algorithm.

Header-Datei#include "ara/diag/sovd_bulk_data.h"
Scopestruct ara::diag::SovdBulkData::BulkDataMetaDataDescriptor
Symbolhash_algorithm
Typara::core::String

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AUTOSAR/AP/record/SWS_DM_01840
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AUTOSAR/AP/record/SWS_DM_01840@rel:R25-11#4ee0ce36
Content hash
4ee0ce36
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https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_01840
Status: valid/unmigrated Version: rel:R25-11#07f9e3c6 Versionshistorie & Revisions (1 transition, 4 revision)
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  • R25-11rel:R25-11#9d8542fe2026-09-30
  • R23-11rel:R23-11#57d5bb732026-10-14
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变量 id [SWS_DM_01831] Upstream: RS_Diag_04266

ara::core::String id;

Specifies the bulk data id.

Header-Datei#include "ara/diag/sovd_bulk_data.h"
Scopestruct ara::diag::SovdBulkData::BulkDataMetaDataDescriptor
Symbolid
Typara::core::String

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AUTOSAR/AP/record/SWS_DM_01831
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AUTOSAR/AP/record/SWS_DM_01831@rel:R25-11#fad862ca
Content hash
fad862ca
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Status: valid/unmigrated Version: rel:R25-11#2b83fa43 Versionshistorie & Revisions (1 transition, 4 revision)
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  • R25-11rel:R25-11#21916d5c2026-09-30
  • R23-11rel:R23-11#2b83fa432026-10-14
  • R24-11rel:R24-11#2b83fa432026-10-14
  • R25-11rel:R25-11#2b83fa432026-10-14 active
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2026-08-13toolnone → valid/unmigratedmechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record2026-08-13-status-backfill

变量 last_modified [SWS_DM_01838] Upstream: RS_Diag_04266

ara::core::String last_modified;

Specifies the bulk data last_modified.

Header-Datei#include "ara/diag/sovd_bulk_data.h"
Scopestruct ara::diag::SovdBulkData::BulkDataMetaDataDescriptor
Symbollast_modified
Typara::core::String

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Record
AUTOSAR/AP/record/SWS_DM_01838
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AUTOSAR/AP/record/SWS_DM_01838@rel:R25-11#7b9de211
Content hash
7b9de211
Source
https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_01838
Status: valid/unmigrated Version: rel:R25-11#b9d12c4f Versionshistorie & Revisions (1 transition, 4 revision)
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AUTOSAR/AP/record/SWS_DM_01838@rel:R25-11#b9d12c4f
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  • R25-11rel:R25-11#76b51c772026-09-30
  • R23-11rel:R23-11#b9d12c4f2026-10-14
  • R24-11rel:R24-11#b9d12c4f2026-10-14
  • R25-11rel:R25-11#b9d12c4f2026-10-14 active
DateActorTransitionReason / RationaleCampaign
2026-08-13toolnone → valid/unmigratedmechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record2026-08-13-status-backfill

变量 mimetype [SWS_DM_01832] Upstream: RS_Diag_04266

ara::core::String mimetype;

Specifies the bulk data mimetype.

Header-Datei#include "ara/diag/sovd_bulk_data.h"
Scopestruct ara::diag::SovdBulkData::BulkDataMetaDataDescriptor
Symbolmimetype
Typara::core::String

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Record
AUTOSAR/AP/record/SWS_DM_01832
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Version
AUTOSAR/AP/record/SWS_DM_01832@rel:R25-11#b2cfdae4
Content hash
b2cfdae4
Source
https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_01832
Status: valid/unmigrated Version: rel:R25-11#e4287897 Versionshistorie & Revisions (1 transition, 4 revision)
Current State
valid/unmigrated
Reason
mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign
2026-08-13-status-backfill
Active Version
AUTOSAR/AP/record/SWS_DM_01832@rel:R25-11#e4287897
Point-in-Time History:
Recorded Revisions (4):
  • R25-11rel:R25-11#d29969462026-09-30
  • R23-11rel:R23-11#e42878972026-10-14
  • R24-11rel:R24-11#e42878972026-10-14
  • R25-11rel:R25-11#e42878972026-10-14 active
DateActorTransitionReason / RationaleCampaign
2026-08-13toolnone → valid/unmigratedmechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record2026-08-13-status-backfill

变量 name [SWS_DM_01833] Upstream: RS_Diag_04266

ara::core::String name;

Specifies the bulk data name.

Header-Datei#include "ara/diag/sovd_bulk_data.h"
Scopestruct ara::diag::SovdBulkData::BulkDataMetaDataDescriptor
Symbolname
Typara::core::String

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Record
AUTOSAR/AP/record/SWS_DM_01833
Status
valid/unmigrated
Version
AUTOSAR/AP/record/SWS_DM_01833@rel:R25-11#cf582149
Content hash
cf582149
Source
https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_01833
Status: valid/unmigrated Version: rel:R25-11#d70aea98 Versionshistorie & Revisions (1 transition, 4 revision)
Current State
valid/unmigrated
Reason
mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign
2026-08-13-status-backfill
Active Version
AUTOSAR/AP/record/SWS_DM_01833@rel:R25-11#d70aea98
Point-in-Time History:
Recorded Revisions (4):
  • R25-11rel:R25-11#455851492026-09-30
  • R23-11rel:R23-11#bebe3d4c2026-10-14
  • R24-11rel:R24-11#d70aea982026-10-14
  • R25-11rel:R25-11#d70aea982026-10-14 active
DateActorTransitionReason / RationaleCampaign
2026-08-13toolnone → valid/unmigratedmechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record2026-08-13-status-backfill

变量 size [SWS_DM_01835] Upstream: RS_Diag_04266

ara::core::Optional<std::uint64_t> size;

Specifies the bulk data size in Byte.

Header-Datei#include "ara/diag/sovd_bulk_data.h"
Scopestruct ara::diag::SovdBulkData::BulkDataMetaDataDescriptor
Symbolsize
Typara::core::Optional< std::uint64_t >

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Record
AUTOSAR/AP/record/SWS_DM_01835
Status
valid/unmigrated
Version
AUTOSAR/AP/record/SWS_DM_01835@rel:R25-11#ce68527e
Content hash
ce68527e
Source
https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_01835
Status: valid/unmigrated Version: rel:R25-11#e28cf75f Versionshistorie & Revisions (1 transition, 4 revision)
Current State
valid/unmigrated
Reason
mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
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Active Version
AUTOSAR/AP/record/SWS_DM_01835@rel:R25-11#e28cf75f
Point-in-Time History:
Recorded Revisions (4):
  • R25-11rel:R25-11#72475b622026-09-30
  • R23-11rel:R23-11#e28cf75f2026-10-14
  • R24-11rel:R24-11#e28cf75f2026-10-14
  • R25-11rel:R25-11#e28cf75f2026-10-14 active
DateActorTransitionReason / RationaleCampaign
2026-08-13toolnone → valid/unmigratedmechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record2026-08-13-status-backfill

变量 translation_id [SWS_DM_01834] Upstream: RS_Diag_04266

ara::core::String translation_id;

Specifies the bulk data translation_id.

Header-Datei#include "ara/diag/sovd_bulk_data.h"
Scopestruct ara::diag::SovdBulkData::BulkDataMetaDataDescriptor
Symboltranslation_id
Typara::core::String

Request a governed re-review of this record. The record is not changed immediately.

Record
AUTOSAR/AP/record/SWS_DM_01834
Status
valid/unmigrated
Version
AUTOSAR/AP/record/SWS_DM_01834@rel:R25-11#816d0863
Content hash
816d0863
Source
https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Diagnostics.pdf#nameddest=SWS_DM_01834
Status: valid/unmigrated Version: rel:R25-11#613e06f5 Versionshistorie & Revisions (1 transition, 4 revision)
Current State
valid/unmigrated
Reason
mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign
2026-08-13-status-backfill
Active Version
AUTOSAR/AP/record/SWS_DM_01834@rel:R25-11#613e06f5
Point-in-Time History:
Recorded Revisions (4):
  • R25-11rel:R25-11#5e3aa2d82026-09-30
  • R23-11rel:R23-11#613e06f52026-10-14
  • R24-11rel:R24-11#613e06f52026-10-14
  • R25-11rel:R25-11#613e06f52026-10-14 active
DateActorTransitionReason / RationaleCampaign
2026-08-13toolnone → valid/unmigratedmechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record2026-08-13-status-backfill