Autodesk 模型衍生翻译作业导致“TranslationWorker-InternalFailure”响应?
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【中文标题】Autodesk 模型衍生翻译作业导致“TranslationWorker-InternalFailure”响应?【英文标题】:Autodesk model derivative translation job results in `TranslationWorker-InternalFailure` response? 【发布时间】:2018-06-23 16:37:54 【问题描述】:我正在尝试使用 Autodesk 的 Model Derivative API 将 .zip
文件转换为 .svf
清单。我能够成功创建一个存储桶,使用分块上传将 zip 放入存储桶,并使用相应的端点开始翻译作业(所有端点返回 200)。当我来查看作业的翻译进度时,它卡在“0%完成”,最终返回TranslationWorker-InternalFailure
的失败消息。
这一切都是在 Node.js 和 superagent 堆栈上以编程方式完成的,以发出 HTTP 请求。我可以通过使用 Paw 手动翻译来确认文件本身是有效的;并且还通过我们正在替换的旧工具对其进行翻译。
我的代码的具体部分见下文。
Autodesk 翻译工作 (Endpoint)
translate: async function(accessToken, obj)
return await request.post('https://developer.api.autodesk.com/modelderivative/v2/designdata/job')
.set("Authorization", "Bearer " + accessToken)
.set("Content-Type", "application/json")
.set('x-ads-force', true)
.send(
input:
urn: obj.base64Urn,
compressedUrn: true,
rootFilename: obj.parentFile
,
output:
formats: [
type: "thumbnail"
,
type: "svf",
views: ["2d", "3d"]
]
);
在上面的代码中,变量的值如下:
obj.base64Urn
通过以下函数从 Autodesk 提供的 URN 动态转换:
base64Urn: function()
// https://tools.ietf.org/html/rfc7515#appendix-C
return this.getDataValue("urn") != null ? (new Buffer(this.getDataValue("urn"))).toString('base64').replace(/=+$/g, "").replace(/\+/g, "-").replace(/[\/]/g, "_") : null;
obj.parentFile
采用"160728 Small Test Project.rvt"
的形式
Autodesk 翻译进度 (Endpoint)
getTranslationProgressAndDerivatives: function(accessToken, obj)
return request.get('https://developer.api.autodesk.com/modelderivative/v2/designdata/' + obj.base64Urn + '/manifest')
.set('Authorization', "Bearer " + accessToken);
当然,有时必须将 obj 放置在 Autodesk 的服务器上。这是通过这段代码完成的:
Autodesk 将对象放入存储桶 (Endpoint)
class HttpAutodeskPutObjectWriteStream extends stream.Writable
/**
* Constructor sets all the properties for the instance.
*
* @param string accessToken - The OAuth2 access token needed for server authentication to engage with Autodesk's API.
* @param Obj obj
*/
constructor(accessToken, bucket)
super();
this.accessToken = accessToken;
this.obj = obj;
this._bytesTransferred = 0;
this._putHttpUrl = 'https://developer.api.autodesk.com/oss/v2/buckets/' + this.obj.name + '/objects/' + this.obj.name + '/resumable';
/**
* Return a bytes transferred statement.
*
* @private
*
* @param chunk - The chunk currently being transferred.
*
* @returns string
*/
_bytesTransferredStatement(chunk)
return `bytes $this._bytesTransferred-$this._bytesTransferred+chunk.byteLength-1/$this.obj.zipFileSize`;
;
/**
* Writes data to the stream. Note the use of the serialize method in the request.
*
* @private
*
* @param chunk - The chunk currently being transferred.
* @param encoding - The encoding of the chunk data.
* @param callback - The function to be called on chunk completion (success or otherwise).
*
* @returns Promise.<void>
*/
async _write(chunk, encoding, callback)
try
let stmt = this._bytesTransferredStatement(chunk);
this._bytesTransferred += chunk.byteLength;
let response = await request.put(this._putHttpUrl)
.set("Authorization", "Bearer " + this.accessToken)
.set("Session-Id", this.bucket.key)
.set("Content-Length", chunk.byteLength)
.set("Content-Range", stmt)
.serialize(function(d) return d; )
.send(chunk.toString());
if (response.status === 200)
this.urn = response.body.objectId;
callback(null);
catch (e)
callback(e);
;
然后在这里调用:
put: function(accessToken, bucketEntity)
return new Promise(async (resolve, reject) =>
const maximalChunkedTransferSize = 2*1024*1024; // 2MB (Minimum amount, Autodesk recommends 5MB).
const objStorageLocation = (await config.get())[process.env.NODE_ENV].objStorageLocation;
const pathToFile = path.join(__dirname, "../../", objStorageLocation, obj.name + ".zip");
let readFileStream = fs.createReadStream(pathToFile, highWaterMark: maximalChunkedTransferSize );
let ws = new HttpAutodeskPutObjectWriteStream(accessToken, obj);
readFileStream.pipe(ws);
ws.on("finish", () => resolve(ws.urn));
ws.on("error", () => reject());
);
当作业失败时...
一旦失败,这是我从翻译进度端点收到的响应:
"type": "manifest",
"hasThumbnail": "false",
"status": "failed",
"progress": "complete",
"region": "US",
"urn": "<redacted>",
"version": "1.0",
"derivatives": [
"name": "LMV Bubble",
"hasThumbnail": "false",
"status": "failed",
"progress": "complete",
"messages": [
"type": "error",
"message": "Translation failure",
"code": "TranslationWorker-InternalFailure"
],
"outputType": "svf"
]
我是否在这里做任何明显错误的事情,在尝试翻译文件时会导致 100% 的失败率?
【问题讨论】:
【参考方案1】:当然,在 *** 上发帖会让您从不同的角度对代码进行心理审查。问题出在我上传文件的过程中,特别是最后一个链接的方法:
let response = await request.put(this._putHttpUrl)
.set("Authorization", "Bearer " + this.accessToken)
.set("Session-Id", this.bucket.key)
.set("Content-Length", chunk.byteLength)
.set("Content-Range", stmt)
.serialize(function(d) return d; )
.send(chunk.toString()); // HERE
在块上调用.toString()
是不正确的。
【讨论】:
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