The following governance concepts are described below.
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WSO2 Governance Registry stores governance metadata and information on governance related entities. Registry resources storing this information and/or metadata are known as assets. With Service metadata, you can import most of the information which is separately stored in the WEB in to the Governance Registry, and manage them as Governance Registry Resources.
In WSO2 G-Reg, you can add common Service information through standard Service metadata formats like WSDL (Web Services Description Language) files, Policy files and schema files. You have to give the location of your WSDL, Policy or Schema file from local file system or as a URL. Governance Registry imports those information in to the Registry as resources. All the special resources will have their own Media Type, which will be useful for you to handle them conveniently.
All service assets are stored in the governance directory, based on the metadata type you import. For an example:
- WSDLs are stored in
/_system/governance/wsdls/directory. - Policies are stored in
/_system/governance/policies/directory. - Schemas are stored in
/governance/schemas/directory.
WSO2 Governance Registry facilitates two types of assets: in-built and custom. For Asset is a representation of any physical or digital entity that belong to an organization, which needs to be governed. In WSO2 Governance Registry, a set of predefined attributes compose an asset.
WSO2 Governance Registry provides an XML-based semantic structure called RXT (Registry Extension Types), to define the structure of a given asset type. There are two RXT categories as follows:
- Content RXTs : These are used to represent and maintain assets that have file content as their main attribute. (E.g. WSDLs, WADLs, Swagger files etc.).
- Generic RXTs: These are used to represent assets that are a combination of different types of attributes. (E.g. representation of SOAP services, REST APIs, Project, Enterprise Applications etc.)
WSO2 Governance Registry provides out of the box access to WSDL, WADL, Swagger, WS-Policy and XSD Schema Content RXTs, and SOAP service, REST service Generic RXTs, via WOS2 G-Reg Publisher. Also, you can define your own RXTs as required, and make them available for operations facilitated by the WSO2 G-Reg Publisher and Store interfaces.
In the Registry level, an asset is transformed into one or more Resources, to store it in the configured database. Resource is a concept defined in the Registry. For more information on these assets, see Adding Assets.
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Categorizing assets
There are two broad categories of artifacts found in the WSO2 Governance Registry as follows.
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