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DSS Rest API C#

客户使用我司提供的DSS Rest API C# example(附件),每日抓取一个数据文件,遇到两个问题:

1)客户已删除的文件还可以通过接口全部取到(已删除文件size=0)

2)客户只想获取数据文件,不想获取RIC list和Note

建议客户尝试了Get latest和Get Changes,都返回同样的结果,如附件两张snapshot

请帮忙检查哪个API参数需要变更,只获得最新的数据文件,多谢


#region Extracted Files


[Example("Get Latest")]

public void GetLatest()

{

/* This example provides an alternate mechanism for retrieving the extraction contents for a schedule or schedules.

* The preferred approach is to use the WaitForNextExtraction method on the toolkit (or LastExtraction association

* property). The MaxPageSize defaults to 250 and should be kept at the default. If the first page's results have

* the HasNextPage set to true then more data is available. You can continue to retrieve subsequent pages using

* GetAll and passing in the next link. When no more data is available, HasNextPage will be false. */

ExtractionsContext.Preferences.MaxPageSize = 3; //Only set for the purposes of the example


Status.Notify(ExtractionsContext, "ReportExtraction", "GetAll", MethodType.Operation, Publish.Primary);

//Returns the first page (250) of the latest Report Extractions for all Schedules.

var firstPage = ExtractionsContext.ReportExtractionOperations.GetAll();


//Output

//Use the schedule id to determine which schedule the results are associated to.

Status.WriteLine("FIRST PAGE:");

foreach (var reportExtraction in firstPage)

Status.WriteLine("ScheduleName: {0}, Date: {1}",

reportExtraction.ScheduleName, reportExtraction.ExtractionDateUtc);

Status.EndNotify(ExtractionsContext);


Status.Notify(ExtractionsContext, "ReportExtraction", "GetAll", MethodType.Operation, Publish.Secondary);

//Only get the second page of data if data is available.

if (firstPage.HasNextPage)

{

//Returns the second page. Notice that NextLink is passed to GetAll.

var secondPage = ExtractionsContext.ReportExtractionOperations.GetAll(firstPage.NextLink);


//Output

Status.WriteLine("SECOND PAGE:");

foreach (var reportExtraction in secondPage)

Status.WriteLine("ScheduleName: {0}, Date: {1}",

reportExtraction.ScheduleName, reportExtraction.ExtractionDateUtc);

}

Status.EndNotify(ExtractionsContext);


}


#endregion


#region Extracted Files


[Example("ExtractedFiles: Get Latest")]

public void ExtractedFilesGetLatest()

{

/* This example provides an alternate mechanism for retrieving the extraction contents for a schedule or schedules.

* The preferred approach is to use the WaitForNextExtraction method on the toolkit (or LastExtraction association

* property). The MaxPageSize defaults to 250 and should be kept at the default. If the first page's results have

* the HasNextPage set to true then more data is available. You can continue to retrieve subsequent pages using

* GetAll and passing in the next link. When no more data is available, HasNextPage will be false. */

ExtractionsContext.Preferences.MaxPageSize = 3; //Only set for the purposes of the example


Status.Notify(ExtractionsContext, "ExtractedFile", "GetAll", MethodType.Operation, Publish.Primary);

//Returns the first page (250) of the latest Extracted Files for all Report Extractions for all Schedules.

var firstPage = ExtractionsContext.ExtractedFileOperations.GetAll();


//Output

//Use the schedule id to determine which schedule the results are associated to.

Status.WriteLine("FIRST PAGE:");

foreach (var extractedFile in firstPage)

Status.WriteLine("ScheduleId: {0}, Filename: {1}, Size: {2}, ContentsExist: {3}",

extractedFile.ScheduleId, extractedFile.ExtractedFileName, extractedFile.Size, extractedFile.ContentsExists);

Status.EndNotify(ExtractionsContext);


Status.Notify(ExtractionsContext, "ExtractedFile", "GetAll", MethodType.Operation, Publish.Secondary);

//Only get the second page of data if data is available.

if (firstPage.HasNextPage)

{

//Returns the second page of Extracted Files. Notice that NextLink is passed to GetAll.

var secondPage = ExtractionsContext.ExtractedFileOperations.GetAll(firstPage.NextLink);


//Output

//Use the schedule id to determine which schedule the results are associated to.

Status.WriteLine("SECOND PAGE:");

foreach (var extractedFile in secondPage)

Status.WriteLine("ScheduleId: {0}, Filename: {1}, Size: {2}, ContentsExist: {3}",

extractedFile.ScheduleId, extractedFile.ExtractedFileName, extractedFile.Size, extractedFile.ContentsExists);

}

Status.EndNotify(ExtractionsContext);


}


[Example("ExtractedFiles: Get Changes")]

public void ExtractedFilesGetChanges()

{

/* This example provides an alternate mechanism for retrieving the extraction contents for a schedule or schedules.

* The preferred approach is to use the WaitForNextExtraction method on the toolkit (or LastExtraction association

* property).

* If Change Tracking is enabled the server returns a delta token along with the payload. If the delta token is

* presented on a subsequent request only records that have changed since the prior request are returned.

* NOTE: Paging is in effect along with change tracking. */

ExtractionsContext.Preferences.MaxPageSize = 3; //Only set for the purposes of the example

ExtractionsContext.Preferences.TrackChanges = true; //Let the API know that you are interested in tracking changes.


Status.Notify(ExtractionsContext, "ExtractedFile", "GetAll", MethodType.Operation, Publish.Secondary);

//Get all the results. The results are paged so that a maximum of 250 are returned. Because TrackChanges was set to

//true, firstPage.DeltaLink includes a token that can be used to find any changes that were made since this request.

//If you _really_ wanted all the results here you would have to call GetAll with all.NextLink until HasNextPage is

//false.

var all = ExtractionsContext.ExtractedFileOperations.GetAll();


//Output

Status.WriteLine("ALL:");

//NOTE: DeltaLink's can be persisted using DeltaLink.ToString() and DeltaLink.Parse().

Status.WriteLine("DeltaLink: " + all.DeltaLink.Url);

foreach (var extractedFile in all)

Status.WriteLine("ScheduleId: {0}, Filename: {1}, Size: {2}, ContentsExist: {3}",

extractedFile.ScheduleId, extractedFile.ExtractedFileName, extractedFile.Size, extractedFile.ContentsExists);

Status.EndNotify(ExtractionsContext);


Status.Notify(ExtractionsContext, "ExtractedFile", "GetAll", MethodType.Operation, Publish.Secondary);

//Get all the ExtractedFiles that have changed since the original request. Note that these results can also be paged

//which means that you would need to call GetAll with changed.NextLink while changed.HasNextPage is true.

var changed = ExtractionsContext.ExtractedFileOperations.GetAll(all.DeltaLink);


//Output

Status.WriteLine("CHANGES:");

//In this example there will be no changes since no extractions were likely to have run between these two calls to

//GetAll.

foreach (var extractedFile in changed)

Status.WriteLine("ScheduleId: {0}, Filename: {1}, Size: {2}, ContentsExist: {3}",

extractedFile.ScheduleId, extractedFile.ExtractedFileName, extractedFile.Size, extractedFile.ContentsExists);

Status.EndNotify(ExtractionsContext);


}


#endregion


dss-rest-apidssdatascope-select
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Hi @Hao.Tang , 据我所知,当前的设计就是这样的,可以通过 ContentsExists filter 掉已经删除的文件,通过FileType filter掉Notes和Ric file, 类似这样:

var all = ExtractionsContext.ExtractedFileOperations.GetAll();
var extractedFiles = all.Where(o => o.ContentsExists &&
                                    o.FileType != ExtractedFileType.Note &&
                   o.FileType != ExtractedFileType.RicMaintenanceNote).ToList();
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1068854642.jpg (115.6 KiB)
1328196273.jpg (167.5 KiB)
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