public JsonSchemaModel Build(JsonSchema schema)
{
_nodes = new JsonSchemaNodeCollection();
_node = AddSchema(null, schema);
_nodeModels = new Dictionary<JsonSchemaNode, JsonSchemaModel>();
JsonSchemaModel model = BuildNodeModel(_node);
return model;
}
public JsonSchemaNode AddSchema(JsonSchemaNode existingNode, JsonSchema schema)
{
string newId;
if (existingNode != null)
{
if (existingNode.Schemas.Contains(schema))
return existingNode;
newId = JsonSchemaNode.GetId(existingNode.Schemas.Union(new[] { schema }));
}
else
{
newId = JsonSchemaNode.GetId(new[] { schema });
}
if (_nodes.Contains(newId))
return _nodes[newId];
JsonSchemaNode currentNode = (existingNode != null)
? existingNode.Combine(schema)
: new JsonSchemaNode(schema);
_nodes.Add(currentNode);
AddProperties(schema.Properties, currentNode.Properties);
AddProperties(schema.PatternProperties, currentNode.PatternProperties);
if (schema.Items != null)
{
for (int i = 0; i < schema.Items.Count; i++)
{
AddItem(currentNode, i, schema.Items[i]);
}
}
if (schema.AdditionalItems != null)
AddAdditionalItems(currentNode, schema.AdditionalItems);
if (schema.AdditionalProperties != null)
AddAdditionalProperties(currentNode, schema.AdditionalProperties);
if (schema.Extends != null)
{
foreach (JsonSchema jsonSchema in schema.Extends)
{
currentNode = AddSchema(currentNode, jsonSchema);
}
}
return currentNode;
}
public void CircularReference()
{
string json = @"{
""id"":""CircularReferenceArray"",
""description"":""CircularReference"",
""type"":[""array""],
""items"":{""$ref"":""CircularReferenceArray""}
}";
JsonSchema schema = JsonSchema.Parse(json);
JsonSchemaModelBuilder modelBuilder = new JsonSchemaModelBuilder();
JsonSchemaNode node = modelBuilder.AddSchema(null, schema);
Assert.AreEqual(1, node.Schemas.Count);
Assert.AreEqual(node, node.Items[0]);
}
public static JsonDataSource CreateDataSourceFromWeb()
{
var jsonDataSource = new JsonDataSource();
// Specify the endpoint.
jsonDataSource.JsonSource = new UriJsonSource(
new Uri("https://raw.githubusercontent.com/DevExpress-Examples/DataSources/master/JSON/customers.json"));
var root = new JsonSchemaNode();
root.NodeType = JsonNodeType.Object;
var customers = new JsonSchemaNode()
{
NodeType = JsonNodeType.Array, Name = "Customers", Selected = true
};
customers.AddChildren(new[] {
new JsonSchemaNode(new JsonNode("CustomerID", true,
JsonNodeType.Property, typeof(string)))
{
DisplayName = "Customer ID"
},
new JsonSchemaNode()
{
Name = "CompanyName",
Selected = true,
NodeType = JsonNodeType.Property,
Type = typeof(string)
},
new JsonSchemaNode(new JsonNode("ContactTitle", true, JsonNodeType.Property, typeof(string))),
new JsonSchemaNode(new JsonNode("Address", false, JsonNodeType.Property, typeof(string)))
});
root.AddChildren(customers);
jsonDataSource.Schema = root;
// The schema is built, you do not have to call the Fill method to populate the Field List.
// The Designer calls the Fill method automatically when a document is generated for preview.
// jsonDataSource.Fill();
return(jsonDataSource);
}
private JsonDataSource CreateDataSourceFromWeb()
{
var jsonDataSource = new JsonDataSource();
jsonDataSource.JsonSource = new UriJsonSource(new Uri("http://northwind.servicestack.net/customers.json"));
var root = new JsonSchemaNode();
root.NodeType = JsonNodeType.Object;
var customers = new JsonSchemaNode()
{
NodeType = JsonNodeType.Array, Name = "Customers", Selected = true
};
customers.AddChildren(new[] {
new JsonSchemaNode(new JsonNode("CustomerID", true, JsonNodeType.Property, typeof(string)))
{
DisplayName = "Customer ID"
},
new JsonSchemaNode()
{
Name = "CompanyName",
Selected = true,
NodeType = JsonNodeType.Property,
Type = typeof(string)
},
new JsonSchemaNode(new JsonNode("ContactTitle", true, JsonNodeType.Property, typeof(string))),
new JsonSchemaNode(new JsonNode("Address", false, JsonNodeType.Property, typeof(string)))
});
root.AddChildren(customers);
jsonDataSource.Schema = root;
//Retrieve data from the JSON data source
jsonDataSource.Fill();
return(jsonDataSource);
}
private JsonSchemaModel BuildNodeModel(JsonSchemaNode node)
{
JsonSchemaModel model;
if (_nodeModels.TryGetValue(node, out model))
return model;
model = JsonSchemaModel.Create(node.Schemas);
_nodeModels[node] = model;
foreach (KeyValuePair<string, JsonSchemaNode> property in node.Properties)
{
if (model.Properties == null)
model.Properties = new Dictionary<string, JsonSchemaModel>();
model.Properties[property.Key] = BuildNodeModel(property.Value);
}
foreach (KeyValuePair<string, JsonSchemaNode> property in node.PatternProperties)
{
if (model.PatternProperties == null)
model.PatternProperties = new Dictionary<string, JsonSchemaModel>();
model.PatternProperties[property.Key] = BuildNodeModel(property.Value);
}
foreach (JsonSchemaNode t in node.Items)
{
if (model.Items == null)
model.Items = new List<JsonSchemaModel>();
model.Items.Add(BuildNodeModel(t));
}
if (node.AdditionalProperties != null)
model.AdditionalProperties = BuildNodeModel(node.AdditionalProperties);
if (node.AdditionalItems != null)
model.AdditionalItems = BuildNodeModel(node.AdditionalItems);
return model;
}
public void AddAdditionalItems(JsonSchemaNode parentNode, JsonSchema schema)
{
parentNode.AdditionalItems = AddSchema(parentNode.AdditionalItems, schema);
}
public void AddAdditionalProperties(JsonSchemaNode parentNode, JsonSchema schema)
{
parentNode.AdditionalProperties = AddSchema(parentNode.AdditionalProperties, schema);
}
public void AddItem(JsonSchemaNode parentNode, int index, JsonSchema schema)
{
JsonSchemaNode existingItemNode = (parentNode.Items.Count > index)
? parentNode.Items[index]
: null;
JsonSchemaNode newItemNode = AddSchema(existingItemNode, schema);
if (!(parentNode.Items.Count > index))
{
parentNode.Items.Add(newItemNode);
}
else
{
parentNode.Items[index] = newItemNode;
}
}
public void AddSchema()
{
string first =
@"{
""id"":""first"",
""type"":""object"",
""properties"":
{
""firstproperty"":{""type"":""string"",""maxLength"":10},
""secondproperty"":{
""type"":""object"",
""properties"":
{
""secondproperty_firstproperty"":{""type"":""string"",""maxLength"":10,""minLength"":7}
}
}
},
""additionalProperties"":{}
}";
string second =
@"{
""id"":""second"",
""type"":""object"",
""extends"":{""$ref"":""first""},
""properties"":
{
""firstproperty"":{""type"":""string""},
""secondproperty"":{
""extends"":{
""properties"":
{
""secondproperty_firstproperty"":{""maxLength"":9,""minLength"":6}
}
},
""type"":""object"",
""properties"":
{
""secondproperty_firstproperty"":{}
}
},
""thirdproperty"":{""type"":""string""}
},
""additionalProperties"":false
}";
JsonSchemaResolver resolver = new JsonSchemaResolver();
JsonSchema firstSchema = JsonSchema.Parse(first, resolver);
JsonSchema secondSchema = JsonSchema.Parse(second, resolver);
JsonSchemaModelBuilder modelBuilder = new JsonSchemaModelBuilder();
JsonSchemaNode node = modelBuilder.AddSchema(null, secondSchema);
Assert.AreEqual(2, node.Schemas.Count);
Assert.AreEqual(2, node.Properties["firstproperty"].Schemas.Count);
Assert.AreEqual(3, node.Properties["secondproperty"].Schemas.Count);
Assert.AreEqual(
3,
node.Properties["secondproperty"].Properties[
"secondproperty_firstproperty"
].Schemas.Count
);
}
