FinsMessage.cs
2.05 KB
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using System;
namespace HslCommunication.Core.IMessage
{
/// <summary>
/// 用于欧姆龙通信的Fins协议的消息解析规则
/// </summary>
public class FinsMessage : INetMessage
{
/// <summary>
/// 消息头的指令长度
/// </summary>
public int ProtocolHeadBytesLength
{
get { return 8; }
}
/// <summary>
/// 从当前的头子节文件中提取出接下来需要接收的数据长度
/// </summary>
/// <returns>返回接下来的数据内容长度</returns>
public int GetContentLengthByHeadBytes()
{
byte[] buffer = new byte[4];
buffer[0] = HeadBytes[7];
buffer[1] = HeadBytes[6];
buffer[2] = HeadBytes[5];
buffer[3] = HeadBytes[4];
return BitConverter.ToInt32(buffer, 0);
}
/// <summary>
/// 检查头子节的合法性
/// </summary>
/// <param name="token">特殊的令牌，有些特殊消息的验证</param>
/// <returns>是否成功的结果</returns>
public bool CheckHeadBytesLegal(byte[] token)
{
if (HeadBytes == null) return false;
if (HeadBytes[0] == 0x46 && HeadBytes[1] == 0x49 && HeadBytes[2] == 0x4E && HeadBytes[3] == 0x53)
{
return true;
}
else
{
return false;
}
}
/// <summary>
/// 获取头子节里的消息标识
/// </summary>
/// <returns>消息id</returns>
public int GetHeadBytesIdentity()
{
return 0;
}
/// <summary>
/// 消息头字节
/// </summary>
public byte[] HeadBytes { get; set; }
/// <summary>
/// 消息内容字节
/// </summary>
public byte[] ContentBytes { get; set; }
/// <summary>
/// 发送的字节信息
/// </summary>
public byte[] SendBytes { get; set; }
}
}