public void GenerateClasses()
{
if (CodeWriter == null)
{
CodeWriter = new CSharpCodeWriter();
}
if (ExplicitDeserialization && !(CodeWriter is CSharpCodeWriter))
{
throw new ArgumentException("只支持C#的反序列化");
}
if (used)
{
throw new InvalidOperationException("JsonClassGenerator的此实例已被使用。请创建一个新的实例。");
}
used = true;
var writeToDisk = TargetFolder != null;
if (writeToDisk && !Directory.Exists(TargetFolder))
{
Directory.CreateDirectory(TargetFolder);
}
JObject[] examples;
var example = Example.StartsWith("HTTP/") ? Example.Substring(Example.IndexOf("\r\n\r\n")) : Example;
using (var sr = new StringReader(example))
using (var reader = new JsonTextReader(sr))
{
var json = JToken.ReadFrom(reader);
if (json is JArray)
{
examples = ((JArray)json).Cast <JObject>().ToArray();
}
else if (json is JObject)
{
examples = new[] { (JObject)json };
}
else
{
throw new Exception("输入的JSON必须是一个JSON数组或JSON对象");
}
}
Types = new List <JsonType>();
Names.Add(MainClass);
var rootType = new JsonType(this, examples[0]);
rootType.IsRoot = true;
rootType.AssignName(MainClass);
GenerateClass(examples, rootType);
if (writeToDisk)
{
var parentFolder = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
if (writeToDisk && !NoHelperClass && ExplicitDeserialization)
{
File.WriteAllBytes(Path.Combine(TargetFolder, "JsonClassHelper.cs"), Properties.Resources.JsonClassHelper);
}
if (SingleFile)
{
WriteClassesToFile(Path.Combine(TargetFolder, MainClass + CodeWriter.FileExtension), Types);
}
else
{
foreach (var type in Types)
{
var folder = TargetFolder;
if (!UseNestedClasses && !type.IsRoot && SecondaryNamespace != null)
{
var s = SecondaryNamespace;
if (s.StartsWith(Namespace + "."))
{
s = s.Substring(Namespace.Length + 1);
}
folder = Path.Combine(folder, s);
Directory.CreateDirectory(folder);
}
WriteClassesToFile(Path.Combine(folder, (UseNestedClasses && !type.IsRoot ? MainClass + "." : string.Empty) + type.AssignedName + CodeWriter.FileExtension), new[] { type });
}
}
}
else if (OutputStream != null)
{
WriteClassesToFile(OutputStream, Types);
}
}
private void GenerateClass(JObject[] examples, JsonType type)
{
var jsonFields = new Dictionary <string, JsonType>();
var fieldExamples = new Dictionary <string, IList <object> >();
var first = true;
foreach (var obj in examples)
{
foreach (var prop in obj.Properties())
{
JsonType fieldType;
var currentType = new JsonType(this, prop.Value);
var propName = prop.Name;
if (jsonFields.TryGetValue(propName, out fieldType))
{
var commonType = fieldType.GetCommonType(currentType);
jsonFields[propName] = commonType;
}
else
{
var commonType = currentType;
if (first)
{
commonType = commonType.MaybeMakeNullable(this);
}
else
{
commonType = commonType.GetCommonType(JsonType.GetNull(this));
}
jsonFields.Add(propName, commonType);
fieldExamples[propName] = new List <object>();
}
var fe = fieldExamples[propName];
var val = prop.Value;
if (val.Type == JTokenType.Null || val.Type == JTokenType.Undefined)
{
if (!fe.Contains(null))
{
fe.Insert(0, null);
}
}
else
{
var v = val.Type == JTokenType.Array || val.Type == JTokenType.Object ? val : val.Value <object>();
if (!fe.Any(x => v.Equals(x)))
{
fe.Add(v);
}
}
}
first = false;
}
if (UseNestedClasses)
{
foreach (var field in jsonFields)
{
Names.Add(field.Key.ToLower());
}
}
foreach (var field in jsonFields)
{
var fieldType = field.Value;
if (fieldType.Type == JsonTypeEnum.Object)
{
var subexamples = new List <JObject>(examples.Length);
foreach (var obj in examples)
{
JToken value;
if (obj.TryGetValue(field.Key, out value))
{
if (value.Type == JTokenType.Object)
{
subexamples.Add((JObject)value);
}
}
}
fieldType.AssignName(CreateUniqueClassName(field.Key));
GenerateClass(subexamples.ToArray(), fieldType);
}
if (fieldType.InternalType != null && fieldType.InternalType.Type == JsonTypeEnum.Object)
{
var subexamples = new List <JObject>(examples.Length);
foreach (var obj in examples)
{
JToken value;
if (obj.TryGetValue(field.Key, out value))
{
if (value.Type == JTokenType.Array)
{
foreach (var item in (JArray)value)
{
if (!(item is JObject))
{
throw new NotSupportedException("尚不支持非对象数组。");
}
subexamples.Add((JObject)item);
}
}
else if (value.Type == JTokenType.Object)
{
foreach (var item in (JObject)value)
{
if (!(item.Value is JObject))
{
throw new NotSupportedException("尚不支持非对象数组。");
}
subexamples.Add((JObject)item.Value);
}
}
}
}
field.Value.InternalType.AssignName(CreateUniqueClassNameFromPlural(field.Key));
GenerateClass(subexamples.ToArray(), field.Value.InternalType);
}
}
type.Fields = jsonFields.Select(x => new FieldInfo(this, x.Key, x.Value, UsePascalCase, fieldExamples[x.Key])).ToArray();
Types.Add(type);
}
