private object DecodeScalar(byte[] content)
{
DictNode rootNode = (DictNode)BEncode.Decode(content);
IntNode codeNode = (IntNode)rootNode["code"];
switch (codeNode.Value)
{
case 1:
case 2:
throw new DbProxyException("数据集收到的数据包出错!");
case 3:
DictNode itemNode = (DictNode)rootNode["item"];
string typeName = ((BytesNode)itemNode["type"]).StringText;
string value = ((BytesNode)itemNode["value"]).StringText;
if (rootNode.ContainsKey("parmlist"))
{
HandleParmsNode((rootNode)["parmlist"]);
}
return(NodeEncoder.GetObject(typeName, value));
case 4:
BytesNode messageNode = (BytesNode)rootNode["message"];
throw new DbProxyException(messageNode.StringText);
case 5:
throw new DbProxyException("校验出错!");
default:
throw new DbProxyException(string.Format("无效消息代码:{0}!", codeNode.Value));
}
}
private void HandleParmsNode(BEncodedNode parmlistNode)
{
ListNode parmsNode = (ListNode)parmlistNode;
foreach (BEncodedNode node in parmsNode)
{
DictNode parmNode = (DictNode)node;
string name = ((BytesNode)parmNode["name"]).StringText;
string typeName = ((BytesNode)parmNode["type"]).StringText;
parameters[name].Value = NodeEncoder.GetObject(typeName, (BytesNode)parmNode["value"]);
}
}
/// <summary>
/// 生成存储过程发送的字节流
/// </summary>
/// <returns>返回发送的字节流</returns>
private byte[] BuildProcMessage(DictNode contentNode)
{
contentNode.Add("text", commandText);
//建立参数列表
if (parameters.Count != 0)
{
ListNode parmsNode = new ListNode();
foreach (DbProxyParameter para in parameters)
{
DictNode parmNode = new DictNode();
parmNode.Add("name", para.ParameterName);
parmNode.Add("type", (int)para.DbType);
switch (para.Direction)
{
case ParameterDirection.Input:
parmNode.Add("value", NodeEncoder.GetValueNode(para));
break;
case ParameterDirection.Output:
parmNode.Add("direction", OutputNum);
break;
case ParameterDirection.InputOutput:
parmNode.Add("direction", InputOutputNum);
parmNode.Add("value", NodeEncoder.GetValueNode(para));
break;
case ParameterDirection.ReturnValue:
parmNode.Add("direction", ReturnValueNum);
break;
}
if (para.Size != 0)
{
parmNode.Add("size", para.Size);
}
parmsNode.Add(parmNode);
}
contentNode.Add("parms", parmsNode);
}
return(BEncode.ByteArrayEncode(contentNode));
}
