Difference between revisions of "Edge Server Publication"
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Revision as of 01:40, 11 February 2020
Contents
Overview
By design, the Fusion Registry does not diretly integrate with the Fusion Edge server, instead it is capable of generating content that can be published to it. The genearted content consists of a single zip file, as required by the Fusion Edge Server for ingestion.
Edge Server 'environments' can be described in the Fusion Registry, the puspose for describing an environment is to enable the Fusion Registry to know what content is should include/exclude from the published content. There is no direct or indirect relationship between the Fusion Registry and the Fusion Edge Server, so the 'environment' definition is simply to help administrators maintain a packaging definition.
The Fusion Registry User Interface supports the creation of an environment definition, and can be used to generate the publication file for the Fusion Edge Server. It is also possible to drive both processes using the Fusion Registry web services.
The process of publishing the generated content to the Fusion Edge server is beyond the remit of the Fusion Registry, and therefore is either a manual process, or an automated task using scripts which are external to, and not goverened by, the Fusion Registry
Environment Definition
The Fusion Edge Server Environment Definition consists of the following properties
| Property | Purpose |
|---|---|
| Id | Unique Identifier. This is used when performing operations such as changing definitions, or generating a publication |
| Description | Human readable description of the environment |
| Include Data | whether to include datasets in the publication (or structural metadata only) (yes/no/or a specific list) |
| Include Reference Metadata | true/false - whether to include reference metadata in the publication |
| Include Provisions | true/false - related to the inclusion of data, whether to include Provision Agreements in the publication, or just the Dataflows |
| Edge Organisation | optional. This can be set to any Data Provider,Data Consumer, or Agency in the Fusion Registry. When generating content for the Fusion Edge Server, the environment will be treated as a user, with the same security rules applied as if the linked Organisation were requesting structures or data. The default setting is anonymous user. |
| Enforce Embargo | if set to true, then an Embargo date/time must be set when generating the Edge Server content |
Generating Edge Content
The generation of Edge content requires the following information
| Property | Purpose |
|---|---|
| Publication Type |
|
| Embargo | Optional. If an embargo time is supplied, this information is put into the zip's file name as a timestamp. The Fusion Edge Server uses the file name to determine if there is an embargo time, and will not publish the environment until the embargo time has passed |
The generation of Edge conent is a request which is processed asyncronously, and as such a status report is maintained by the Fusion Registry so that the progress can be tracked. Once the edge content is ready, it can be downloaded via a sererate call.
Download Edge Content
Once the Fusion Registry has generated a Fusion Edge Server publication, it can be downloaded. The download is available up until such time that the Fusion Registry is asked to generate a new Fusion Edge Server publication for the same environment.
Web Service
Generating Edge Content
| Entry Point | /ws/secure/edge/buildEdgeServerPublication |
| Access | Private (admin only) |
| Http Method | POST |
| Content-Type | application/json |
| Response Format | application/json |
| Response Statuses | 200 - Request accepted 400 - Posted content invalid 401 - Unauthorized (if access has been restricted) 500 - Server Error |
The POST JSON should look as follows:
{
"Id" : "EdgeEnvironmentId",
"PublicationType" : "FullReplace",
"EmbargoDate" : 1581353225818,
}
PublicationType of Replace is used to indicate that it is a delta
The Embargo Date is optional, and measured in Epoc Timestamp milliseconds (number of milliseconds since 1970)
Generating Edge Content - Status
| Entry Point | /environment/status/{environmentID} |
| Access | Private (admin only) |
| Http Method | GET |
| Response Format | application/json |
| Response Statuses | 200 - Request accepted 401 - Unauthorized (if access has been restricted) 500 - Server Error |
The reponse looks as follows:
{
"id" : 1
"environmentId" : "PROD"
"processStartDate" : 1581353225818
"processEndDate" : 1581353233333
"status" : "PROCESSING"|"ERRORED"|"SUCCESSFUL"|"CANCELLED"|"WRITING_DATA"|"WRITING_STRUCTURES"
"auditTxId" : "cd82166a-fe31-4870-8307-c0f8d00d3eb3",
"totalDatasets" : 10,
"processedDatasets" : 8
"error" : ""
}
The following table describes the JSON properties in the response message
| Property | Description |
|---|---|
| id | Unique identifier for this status |
| environmentId | The Id of the environment that the status is for |
| processStartDate | The end date of the Edge Server zip generation process, in epoch time milliseconds |
| processEndDate | The end date of the Edge Server zip generation process, in epoch time milliseconds |
| status | The current status of the Edge Server zip generation |
| auditTxId | The audit transaction id |
| totalDatasets | Total number of datasets that will be included in the output |
| processedDatasets | Total number of datasets that have been written to the output so far |
| error | Optional. Provided if the status is ERRORED. |
| Example |
Downloading Edge Content
| Entry Point | /environment/export/{environmentID} |
| Access | Private (admin only) |
| Http Method | GET |
| Response Format | application/octet-stream |
| Response Statuses | 200 - Request accepted 401 - Unauthorized (if access has been restricted) 500 - Server Error |
A call to this web service results in a file download which can be published to the Fusion Edge Server. The name of the file is important as it is used to tell the Fusion Edge Server what the contents are and how to treat the information. The following table describes the various names the file can take
| File Name | Description |
|---|---|
| node.zip | Full Replace |
| node_1581353225818.zip | Full Replace with an embargo time of 1581353225818 milliseconds since 1970. This timestamp relates to 10-Feb-2020, 16:47:05 GMT |
| delta.zip | Contains only datasets to be merged with existing datasets in the Fusion Edge Server |
| delta_1581353225818.zip.zip | Contains only datasets to be merged with existing datasets in the Fusion Edge Server - with an embargo time provided of 1581353225818 milliseconds since 1970. |
