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