/// <summary>
/// Initializes a new instance of the <see cref="QueryDocument" /> class.
/// </summary>
/// <param name="messages">The messages to preload to the document.</param>
/// <param name="operations">the operations to preload to the document.</param>
/// <param name="maxDepth">The maximum depth achived by the document.</param>
public QueryDocument(IGraphMessageCollection messages = null, IEnumerable <QueryOperation> operations = null, int maxDepth = 0)
{
this.MaxDepth = maxDepth;
this.Operations = new QueryOperationCollection();
this.Messages = new GraphMessageCollection();
this.Operations.AddRange(operations);
this.Messages.AddRange(messages);
}
/// <summary>
/// Initializes a new instance of the <see cref="FieldContextBuilder" /> class.
/// </summary>
/// <param name="serviceProvider">The service provider.</param>
/// <param name="user">The user.</param>
/// <param name="graphField">The graph field.</param>
/// <param name="schema">The schema.</param>
/// <param name="graphMethod">The metadata describing the method/functon to be invoked by a resolver.</param>
public FieldContextBuilder(
IServiceProvider serviceProvider,
ClaimsPrincipal user,
IGraphField graphField,
ISchema schema,
IGraphMethod graphMethod)
{
_schema = Validation.ThrowIfNullOrReturn(schema, nameof(schema));
_graphField = Validation.ThrowIfNullOrReturn(graphField, nameof(graphField));
_user = Validation.ThrowIfNullOrReturn(user, nameof(user));
_messageCollection = new GraphMessageCollection();
this.ServiceProvider = Validation.ThrowIfNullOrReturn(serviceProvider, nameof(serviceProvider));
Type expectedInputType = null;
if (!Validation.IsCastable <GraphDirective>(graphMethod.Parent.ObjectType) &&
!Validation.IsCastable <GraphController>(graphMethod.Parent.ObjectType))
{
expectedInputType = graphMethod.Parent.ObjectType;
}
var metaData = new MetaDataCollection();
_mockRequest = new Mock <IGraphFieldRequest>();
_mockInvocationContext = new Mock <IGraphFieldInvocationContext>();
// fake the request for the field data (normally generated by the primary query exeuction context)
var id = Guid.NewGuid().ToString("N");
_mockRequest.Setup(x => x.Id).Returns(id);
_mockRequest.Setup(x => x.Origin).Returns(SourceOrigin.None);
_mockRequest.Setup(x => x.Items).Returns(metaData);
_mockRequest.Setup(x => x.Field).Returns(_graphField);
_mockRequest.Setup(x => x.InvocationContext).Returns(_mockInvocationContext.Object);
_mockInvocationContext.Setup(x => x.ExpectedSourceType).Returns(expectedInputType);
_mockInvocationContext.Setup(x => x.Field).Returns(_graphField);
_mockInvocationContext.Setup(x => x.Arguments).Returns(_arguments);
_mockInvocationContext.Setup(x => x.Name).Returns(_graphField.Name);
_mockInvocationContext.Setup(x => x.Directives).Returns(new List <IDirectiveInvocationContext>());
_mockInvocationContext.Setup(x => x.ChildContexts).Returns(new FieldInvocationContextCollection());
_mockInvocationContext.Setup(x => x.Origin).Returns(SourceOrigin.None);
this.GraphMethod = new Mock <IGraphMethod>();
this.GraphMethod.Setup(x => x.Parent).Returns(graphMethod.Parent);
this.GraphMethod.Setup(x => x.ObjectType).Returns(graphMethod.ObjectType);
this.GraphMethod.Setup(x => x.ExpectedReturnType).Returns(graphMethod.ExpectedReturnType);
this.GraphMethod.Setup(x => x.Method).Returns(graphMethod.Method);
this.GraphMethod.Setup(x => x.IsAsyncField).Returns(graphMethod.IsAsyncField);
this.GraphMethod.Setup(x => x.Name).Returns(graphMethod.Name);
this.GraphMethod.Setup(x => x.InternalFullName).Returns(graphMethod.InternalFullName);
this.GraphMethod.Setup(x => x.InternalName).Returns(graphMethod.InternalName);
this.GraphMethod.Setup(x => x.Route).Returns(graphMethod.Route);
this.GraphMethod.Setup(x => x.Arguments).Returns(graphMethod.Arguments);
}
/// <summary>
/// Creates a new operation result from a collection of generated messages and optional raw data
/// provided by a requestor.
/// </summary>
/// <param name="errorMessages">The collection of messages. Must be not null and contain at least one message.</param>
/// <param name="queryData">The original query data.</param>
/// <returns>GraphOperationResult.</returns>
public static GraphOperationResult FromMessages(IGraphMessageCollection errorMessages, GraphQueryData queryData = null)
{
Validation.ThrowIfNull(errorMessages, nameof(errorMessages));
if (errorMessages.Count < 1)
{
errorMessages.Critical("An unknown error occured.");
}
return(new GraphOperationResult(
new GraphOperationRequest(queryData),
errorMessages));
}
/// <summary>
/// Creates an executable operation context from the given query document operation. This method
/// marries the parsed requirements from a schema to the concrete method and property implementations
/// in the user's sourcecode. All abstract graph types are materialized and only concrete, actionable methods
/// will be be operationalized.
/// </summary>
/// <param name="operation">The query operation to generate an execution context for.</param>
/// <returns>Task<IGraphFieldExecutableOperation>.</returns>
public async Task <IGraphFieldExecutableOperation> Create(QueryOperation operation)
{
Validation.ThrowIfNull(operation, nameof(operation));
_messages = new GraphMessageCollection();
var topLevelFields = await this.CreateContextsForFieldSelectionSet(
operation.GraphType,
operation.FieldSelectionSet).ConfigureAwait(false);
var result = new GraphFieldExecutableOperation(operation);
foreach (var field in topLevelFields)
{
result.FieldContexts.Add(field);
}
result.Messages.AddRange(_messages);
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="FieldValidationContext" /> class.
/// </summary>
/// <param name="schema">The schema in scope for this validation context.</param>
/// <param name="dataItem">The data item to process.</param>
/// <param name="messageCollection">An optional message collection to use for this context, if not supplied
/// a new one will be generated.</param>
public FieldValidationContext(ISchema schema, GraphDataItem dataItem, IGraphMessageCollection messageCollection = null)
{
this.Schema = Validation.ThrowIfNullOrReturn(schema, nameof(schema));
this.DataItem = dataItem;
this.Messages = messageCollection ?? new GraphMessageCollection();
}
