public object[] ReadValue(string deviceAddress, string[] points)
{
var client = new Way.Lib.NetStream(this.Address, this.Port);
var json = Newtonsoft.Json.JsonConvert.SerializeObject(new Command()
{
Type = "ReadValue",
DeviceAddress = deviceAddress,
Points = points
});
byte[] bs = System.Text.Encoding.UTF8.GetBytes(json);
client.Write(bs.Length);
client.Write(bs);
object[] values = new object[points.Length];
for (int i = 0; i < points.Length; i++)
{
int index = client.ReadInt();
PointValueType valueType = (PointValueType)client.ReadInt();
if (valueType == PointValueType.Short)
{
values[index] = client.ReadShort();
}
else if (valueType == PointValueType.Int)
{
values[index] = client.ReadInt();
}
else if (valueType == PointValueType.Float)
{
values[index] = client.ReadFloat();
}
else if (valueType == PointValueType.String)
{
values[index] = System.Text.Encoding.UTF8.GetString(client.ReceiveDatas(client.ReadInt()));
}
else
{
throw new Exception($"not support value type {valueType}");
}
}
client.Dispose();
return(values);
}
/// <summary>
///
/// </summary>
/// <param name="deviceAddress">设备地址</param>
/// <param name="points">点路径</param>
/// <param name="interval">更新时间间隔，单位：毫秒</param>
/// <param name="onReceiveValue"></param>
/// <param name="onError"></param>
public Way.Lib.NetStream AddPointToWatch(string deviceAddress, string[] points, int interval, Action <string, object> onReceiveValue, Action <string> onError)
{
if (interval < 1000)
{
interval = 1000;
}
try
{
var client = new Way.Lib.NetStream(this.Address, this.Port);
var json = Newtonsoft.Json.JsonConvert.SerializeObject(new Command()
{
Type = "AddPointToWatch",
DeviceAddress = deviceAddress,
Points = points,
Interval = interval
});
byte[] bs = System.Text.Encoding.UTF8.GetBytes(json);
client.Write(bs.Length);
client.Write(bs);
Task.Run(() =>
{
while (true)
{
try
{
int index = client.ReadInt();
PointValueType valueType = (PointValueType)client.ReadInt();
if (valueType == PointValueType.Short)
{
onReceiveValue(points[index], client.ReadShort());
}
else if (valueType == PointValueType.Int)
{
onReceiveValue(points[index], client.ReadInt());
}
else if (valueType == PointValueType.Float)
{
onReceiveValue(points[index], client.ReadFloat());
}
else if (valueType == PointValueType.String)
{
var str = System.Text.Encoding.UTF8.GetString(client.ReceiveDatas(client.ReadInt()));
onReceiveValue(points[index], str);
}
else
{
throw new Exception($"not support value type {valueType}");
}
}
catch (Exception ex)
{
client.Close();
onError(ex.Message);
return;
}
}
});
return(client);
}
catch (Exception ex)
{
onError(ex.Message);
}
return(null);
}
