/// <summary>
/// 对请求数据进行包装，转换为合适的请求类型，并返回对应的负载类型
/// </summary>
/// <param name="data">要发送的数据</param>
/// <param name="contentType">对应的负载类型</param>
/// <param name="extraRequestInfo">额外的请求数据</param>
/// <returns>经过包装的 <see cref="HttpRequestContent"/> 对象</returns>
public virtual HttpRequestContent WrapRequestContent(object data, ContentType?contentType, ExtraRequestInfo extraRequestInfo)
{
if (data == null)
{
return(null);
}
var type = contentType ?? GetPreferContentType(data.GetType()) ?? Setting.DefaultRequestContentType;
var ea = new RequestWrapRequestContentEventArgs(this, data, extraRequestInfo)
{
ContentType = type
};
ea.RequestContent = Setting.ContentPayloadBuilder.WrapRequestContent(data, ea);
GlobalEvents.OnBeforeRequestWrapRequestContent(this, ea);
OnBeforeWrapRequestContent(this, ea);
var content = ea.RequestContent;
contentType = ea.ContentType;
if (content == null)
{
if (data is HttpRequestContent)
{
content = data as HttpRequestContent;
}
else if (data is string)
{
content = new RequestStringContent(data as string, type);
}
else if (data is Stream)
{
content = new RequestCopyStreamContent(data as Stream, type);
}
else if (data is byte[])
{
content = new RequestByteBufferContent(data as byte[], contentType: type);
}
else if (data is IDictionary <string, string> && type != ContentType.Json)
{
content = new RequestFormDataContent(data as IDictionary <string, string>, type);
}
else if (data is XmlDocument || data is XmlNode || data is System.Xml.Linq.XDocument)
{
content = new RequestXmlContent(data, contentType ?? ContentType.Xml);
}
//object
else if (contentType == ContentType.Json)
{
content = new RequestJsonContent(data);
}
else if (contentType == ContentType.Xml)
{
content = new RequestXmlContent(data, type);
}
else
{
content = new RequestObjectContent <object>(data, type);
}
}
//全局事件
GlobalEvents.OnRequestWrapRequestContent(this, ea);
//实例事件
OnRequestWrapRequestContent(this, ea);
content = HttpHandler.WrapRequestContent(this, content, data, contentType);
return(content);
}
