private Task <ChainCodeInvokeResponse> ChaincodeInvoke(IChaincodeStub stub)
{
try
{
var chaincode = new Chaincode();
chaincode.NameSpace = stub.GetChaincodeNameSpace();
chaincode.Name = stub.GetChaincodeName();
chaincode.Version = stub.GetChaincodeVersion();
var ass = _assemblyProvider.GetAssembly(stub.GetChannelId(), stub.GetChaincodeName(), stub.GetChaincodeNameSpace(), stub.GetChaincodeVersion());
var classfullname = chaincode.NameSpace + "." + chaincode.Name;
//必须使用 名称空间+类名称
var type = ass.GetType(classfullname);
//方法的名称
MethodInfo method = type.GetMethod("Invoke");
//必须使用名称空间+类名称
var obj = ass.CreateInstance(classfullname);
var rs = method.Invoke(obj, new object[] { stub });
if (rs != null)
{
return(Task.FromResult((ChainCodeInvokeResponse)rs));
}
}
catch (Exception ex)
{
return(null);
}
return(null);
}
/// <summary>
/// 安装链码(将链码加入到配置中)
/// </summary>
/// <param name="stub"></param>
/// <returns></returns>
public ChainCodeInvokeResponse InstallChaincode(IChaincodeStub stub)
{
/**
* arg[0] 链码名称
* arg[1] 命名空间 也是dll文件名称
* arg[2] 版本号
* arg[3] 背书策略
*
* 1.打包上传到指定的文件夹 (每个单独的 不是写链码)
* * 2.安装链码 即在配置中写入链码
* 3.链码初始化
*
**/
try
{
var args = stub.GetArgs();
if (args.Length != 4)
{
return(stub.Response("", StatusCode.BAD_ARGS_NUMBER));
}
var chaincodeConfig = new ChaincodeConfig();
chaincodeConfig.Name = args[0];
chaincodeConfig.Namespace = args[1];
chaincodeConfig.Version = args[2];
chaincodeConfig.Status = ChaincodeStatus.INSTALLED;
chaincodeConfig.Policy = Newtonsoft.Json.JsonConvert.DeserializeObject <Policy>(args[3]);
#region 检查参数
if (string.IsNullOrEmpty(chaincodeConfig.Name))
{
return(stub.Response("请输入链码名称", StatusCode.BAD_OTHERS));
}
if (string.IsNullOrEmpty(chaincodeConfig.Namespace))
{
return(stub.Response("请输入链码命名空间", StatusCode.BAD_OTHERS));
}
if (string.IsNullOrEmpty(chaincodeConfig.Version) || !decimal.TryParse(chaincodeConfig.Version, out decimal rs))
{
return(stub.Response("版本号格式不正确", StatusCode.BAD_OTHERS));
}
#endregion
#region 检查代码是否已经上传到了正确目录
String basePath = AppContext.BaseDirectory;
var chaincodepath = Path.Combine(basePath, ConfigKey.ChaincodePath, stub.GetChannelId(), args[0], args[1], args[2]);
if (!Directory.Exists(chaincodepath))
{
return(stub.Response("链码不存在", StatusCode.BAD_OTHERS));
}
#endregion
var channelConfig = stub.GetChannelConfig();
#region 检查链码是否重复
if (channelConfig.ChainCodeConfigs.Any(p => p.Name == chaincodeConfig.Name))
{
return(stub.Response("链码已经存在", StatusCode.BAD_OTHERS));
}
#endregion
//校验组织是否存在
#region 检查链码组织是否
#endregion
foreach (var item in chaincodeConfig.Policy.OrgIds)
{
//如果组织不存在
if (!channelConfig.OrgConfigs.Any(p => p.OrgId == item))
{
return(stub.Response(item + "组织不存在", StatusCode.BAD_OTHERS));
}
}
channelConfig.ChainCodeConfigs.Add(chaincodeConfig);
stub.SetChannelConfig(channelConfig);
return(stub.Response("", StatusCode.Successful));
}
catch (Exception ex)
{
return(stub.Response(ex.Message, StatusCode.BAD_OTHERS));
}
}