Definining the schema

To define the schema for your management agent, you need to create a new schema provider class that inherits from the ISchemaProvider interface. This class will be responsible for providing the schema definition.

Let's break down how the provided example works:

1. Inheriting from ISchemaProvider:

The SchemaProvider class implements the ISchemaProvider interface, which requires the implementation of the GetMmsSchemaAsync method. This method returns a Task<Schema> object representing the schema.

1. Defining the schema:

The GetMmsSchemaAsync method creates a new instance of the Schema class, which represents the entire schema for the management agent. It then adds a single schema type, "user", to the Schema object by calling the GetSchemaTypeUser method.

1. Defining schema attributes:

The GetSchemaTypeUser method creates a new instance of the SchemaType class, representing a specific type within the schema. In this case, the type is "user". It defines attributes such as "id", "name", "email", and "phone" using the appropriate methods.

1. Returning the schema:

Once the schema is defined, the GetMmsSchemaAsync method returns the Schema object wrapped in a completed Task using the Task.FromResult method.

In summary, the SchemaProvider class defines a schema for a data model by creating a Schema object, adding a "user" type with specific attributes, and returning the schema through the GetMmsSchemaAsync method. This allows other components of the application to access and utilize the defined schema for various purposes, such as data import and export.

using System.Threading.Tasks;
using Microsoft.MetadirectoryServices;

namespace Lithnet.Ecma2Framework.Example
{
   internal class SchemaProvider : ISchemaProvider
   {
       public Task<Schema> GetMmsSchemaAsync()
       {
           Schema mmsSchema = new Schema();
           mmsSchema.Types.Add(this.GetSchemaTypeUser());

           return Task.FromResult(mmsSchema);
       }

       private SchemaType GetSchemaTypeUser()
       {
           SchemaType mmsType = SchemaType.Create("user", true);
           SchemaAttribute mmsAttribute = SchemaAttribute.CreateAnchorAttribute("id", AttributeType.String, AttributeOperation.ImportOnly);
           mmsType.Attributes.Add(mmsAttribute);

           mmsAttribute = SchemaAttribute.CreateSingleValuedAttribute("name", AttributeType.String, AttributeOperation.ImportExport);
           mmsType.Attributes.Add(mmsAttribute);

           mmsAttribute = SchemaAttribute.CreateSingleValuedAttribute("email", AttributeType.String, AttributeOperation.ImportExport);
           mmsType.Attributes.Add(mmsAttribute);

           mmsAttribute = SchemaAttribute.CreateSingleValuedAttribute("phone", AttributeType.String, AttributeOperation.ImportExport);
           mmsType.Attributes.Add(mmsAttribute);

           return mmsType;
       }
   }
}

## Configuration parameters
You can get the configuration parameters set for the management agent, by injecting `IConfigParameters` into your classes constructor.


```cs
using System.Threading.Tasks;
using Microsoft.MetadirectoryServices;

namespace Lithnet.Ecma2Framework.Example
{
   internal class SchemaProvider : ISchemaProvider
   {
       private readonly IConfigurationParameters configParameters;

       public SchemaProvider(IConfigurationParameters configParameters)
       {
           this.configParameters = configParameters;
       }

       // Class implementation
   }
}

If you are using the Options<T> pattern for configuration, then simply inject the relevant strongly-typed options objects into your class.

using System.Threading.Tasks;
using Microsoft.MetadirectoryServices;

namespace Lithnet.Ecma2Framework.Example
{
   internal class SchemaProvider : ISchemaProvider
   {
       private readonly SchemaOptions schemaOptions;

       public SchemaProvider(IOptions<SchemaOptions> schemaOptions)
       {
           this.schemaOptions = schemaOptions.Value;
       }

       // Class implementation
   }
}