/// <summary>
/// Creates a new reactive processing context using the specified services and with default service objects.
/// </summary>
/// <param name="expressionServices">Expression tree services.</param>
/// <param name="clientService">Client-side operation services.</param>
/// <param name="definitionService">Definition operation services.</param>
/// <param name="metadataService">Metadata services.</param>
protected ReactiveServiceContext(IReactiveExpressionServices expressionServices, IReactiveClientEngineProvider clientService, IReactiveDefinitionEngineProvider definitionService, IReactiveMetadataEngineProvider metadataService)
: this(expressionServices, new ReactiveClient(clientService, expressionServices), new ReactiveDefinition(definitionService, expressionServices), new ReactiveMetadata(metadataService, expressionServices))
{
var thisParameter = ResourceNaming.GetThisReferenceExpression(this);
expressionServices.RegisterObject(this, thisParameter);
}
/// <summary>
/// Creates a new reactive processing metadata object using the specified metadata operations provider.
/// </summary>
/// <param name="provider">Metadata operations provider.</param>
/// <param name="expressionServices">Expression services object, used to perform expression tree manipulations.</param>
public ReactiveMetadataProxy(IReactiveMetadataServiceProvider provider, IReactiveExpressionServices expressionServices)
{
_provider = provider ?? throw new ArgumentNullException(nameof(provider));
_expressionServices = expressionServices ?? throw new ArgumentNullException(nameof(expressionServices));
var thisParameter = ResourceNaming.GetThisReferenceExpression(this);
expressionServices.RegisterObject(this, thisParameter);
}
protected override Expression VisitParameter(ParameterExpression node)
{
if (ResourceNaming.IsThisReferenceExpression(_thisType, node))
{
Debug.Assert(ThisParameter == null || ThisParameter == node);
ThisParameter = node;
}
return(base.VisitParameter(node));
}
/// <summary>
/// Creates a new reactive processing context using the specified proxy objects.
/// </summary>
/// <param name="expressionServices">Expression tree services.</param>
/// <param name="clientProxy">Client-side operation proxy.</param>
/// <param name="definitionProxy">Definition operation proxy.</param>
/// <param name="metadataProxy">Metadata service proxy.</param>
protected ReactiveClientContext(IReactiveExpressionServices expressionServices, ReactiveClientProxy clientProxy, ReactiveDefinitionProxy definitionProxy, ReactiveMetadataProxy metadataProxy)
{
if (expressionServices == null)
{
throw new ArgumentNullException(nameof(expressionServices));
}
Client = clientProxy;
Definition = definitionProxy;
Metadata = metadataProxy;
var thisParameter = ResourceNaming.GetThisReferenceExpression(this);
expressionServices.RegisterObject(this, thisParameter);
}
/// <summary>
/// Creates a new reactive processing context using the specified service objects.
/// </summary>
/// <param name="expressionServices">Expression tree services.</param>
/// <param name="client">Client-side operation service object.</param>
/// <param name="definition">Definition operation service object.</param>
/// <param name="metadata">Metadata service object.</param>
protected ReactiveServiceContext(IReactiveExpressionServices expressionServices, ReactiveClient client, ReactiveDefinition definition, ReactiveMetadata metadata)
{
if (expressionServices == null)
{
throw new ArgumentNullException(nameof(expressionServices));
}
Client = client ?? throw new ArgumentNullException(nameof(client));
Definition = definition ?? throw new ArgumentNullException(nameof(definition));
Metadata = metadata ?? throw new ArgumentNullException(nameof(metadata));
var thisParameter = ResourceNaming.GetThisReferenceExpression(this);
expressionServices.RegisterObject(this, thisParameter);
}
/// <summary>
/// Creates a new reactive processing client using the specified client operations provider.
/// </summary>
/// <param name="provider">Client operations provider.</param>
/// <param name="expressionServices">Expression services object, used to perform expression tree manipulations.</param>
public ReactiveClientProxy(IReactiveClientServiceProvider provider, IReactiveExpressionServices expressionServices)
: base(new AsyncReactiveQueryProvider(provider, expressionServices))
{
if (provider == null)
{
throw new ArgumentNullException(nameof(provider));
}
if (expressionServices == null)
{
throw new ArgumentNullException(nameof(expressionServices));
}
var thisParameter = ResourceNaming.GetThisReferenceExpression(this);
expressionServices.RegisterObject(this, thisParameter);
expressionServices.RegisterObject(base.Provider, Expression.Property(thisParameter, (PropertyInfo)ReflectionHelpers.InfoOf((IReactiveClientProxy c) => c.Provider)));
}
/// <summary>
/// Sets the ThisParameter property.
/// </summary>
/// <param name="expr">Expression representing the 'this' reference.</param>
protected void SetThisParameter(Expression expr)
{
if (ThisParameter != null)
{
return;
}
var findThis = new FindThisParameterVisitor(ThisType);
findThis.Visit(expr);
if (findThis.ThisParameter != null)
{
ThisParameter = findThis.ThisParameter;
}
else
{
ThisParameter = (ParameterExpression)ResourceNaming.GetThisReferenceExpression(ThisType);
}
}
