public static ApplicationDescriptionCollection getServersDescr(string aDiscoveryUrl)
{
Uri lDiscoveryUrl;
if (String.IsNullOrWhiteSpace(aDiscoveryUrl))
{
lDiscoveryUrl = new Uri("opc.tcp://localhost:4840");
}
else
{
lDiscoveryUrl = new Uri(aDiscoveryUrl);
}
var lAllServers = DiscoveryClient.Create(lDiscoveryUrl).FindServers(null);
var lResult = new ApplicationDescriptionCollection();
foreach (var lServer in lAllServers)
{
if (lServer.ApplicationType == ApplicationType.ClientAndServer || lServer.ApplicationType == ApplicationType.Server)
{
lResult.Add(lServer);
}
}
return(lResult);
}
/// <summary>
/// 发现服务(由客户端请求)
/// </summary>
/// <param name="requestHeader"></param>
/// <param name="endpointUrl"></param>
/// <param name="localeIds"></param>
/// <param name="serverUris"></param>
/// <param name="servers"></param>
/// <returns></returns>
public override ResponseHeader FindServers(
RequestHeader requestHeader,
string endpointUrl,
StringCollection localeIds,
StringCollection serverUris,
out ApplicationDescriptionCollection servers)
{
servers = new ApplicationDescriptionCollection();
ValidateRequest(requestHeader);
Console.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + ":请求查找服务...");
string hostName = Dns.GetHostName();
lock (_serverTable)
{
foreach (var item in _serverTable)
{
StringCollection urls = new StringCollection();
foreach (var url in item.DiscoveryUrls)
{
if (url.Contains("localhost"))
{
string str = url.Replace("localhost", hostName);
urls.Add(str);
}
else
{
urls.Add(url);
}
}
servers.Add(new ApplicationDescription()
{
ApplicationName = item.ServerNames.FirstOrDefault(),
ApplicationType = item.ServerType,
ApplicationUri = item.ServerUri,
DiscoveryProfileUri = item.SemaphoreFilePath,
DiscoveryUrls = urls,
ProductUri = item.ProductUri,
GatewayServerUri = item.GatewayServerUri
});
}
}
return(CreateResponse(requestHeader, StatusCodes.Good));
}