private RemotingClientUtil()
{
_RemotingConfiguration = RemotingClientConfiguration.GetConfig();
if (_RemotingConfiguration == null)
{
return;
}
Dictionary <string, RemotingHost> hosts = _RemotingConfiguration.RemotingHosts;
//生成所有远程对象代理并加载到内存
foreach (KeyValuePair <string, RemotingHost> kvp in hosts)
{
RemotingHost host = kvp.Value;
LoadModulesByHost(host);
}
//检测每个客户端的可用服务器
RemotingHostCheck.Instance.DoCheck();
//如果检测服务器，则输出日志
if (_RemotingConfiguration.IsCheckServer)
{
System.Threading.Thread thread = new System.Threading.Thread(DoWork);
//thread.IsBackground = true;
thread.Start();
}
}
public RemotingServer()
{
_domain = AppDomain.CreateDomain("server", null, new AppDomainSetup {
ApplicationBase = AppDomain.CurrentDomain.BaseDirectory
});
_remotingHost = (RemotingHost)_domain.CreateInstanceAndUnwrap(typeof(RemotingHost).Assembly.FullName, typeof(RemotingHost).FullName);
_remotingHost.Start();
}
/// <summary>
/// 获取可用的服务器地址
/// </summary>
/// <param name="host"></param>
/// <returns></returns>
public string GetUsableServerUrl(RemotingHost host)
{
if (AppDomain.CurrentDomain.GetData(host.Name) == null)
{
string url = host.Servers[host.DefaultServer].ServerUrl;
AppDomain.CurrentDomain.SetData(host.Name, url);
}
return(AppDomain.CurrentDomain.GetData(host.Name).ToString());
}
/// <summary>
/// 加载远程对象代理客户端模块
/// </summary>
/// <param name="host"></param>
public void LoadModulesByHost(RemotingHost host)
{
string serverUrl = RemotingHostCheck.Instance.GetUsableServerUrl(host);
foreach (KeyValuePair <string, string> m in host.Modules)
{
string objectUrl = _RemotingConfiguration.GetRemoteObjectUrl(serverUrl, m.Value);
T instance = (T)Activator.GetObject(typeof(T), objectUrl);
string key = string.Format("{0}${1}${2}", host.Name, serverUrl, m.Key);
_RemoteObjects[key] = instance;
}
}
/// <summary>
/// 获取远程对象
/// </summary>
/// <param name="hostName"></param>
/// <param name="remoteObjectName"></param>
/// <returns></returns>
public T GetRemotingObject(string hostName, string remoteObjectName)
{
RemotingHost host = _RemotingConfiguration.RemotingHosts[hostName];
string serverUrl = RemotingHostCheck.Instance.GetUsableServerUrl(host);
string key = string.Format("{0}${1}${2}", host.Name, serverUrl, remoteObjectName);
lock (_RemoteObjects)
{
if (!_RemoteObjects.ContainsKey(key))
{
string objectUrl = _RemotingConfiguration.GetRemoteObjectUrl(serverUrl, remoteObjectName);
T instance = (T)Activator.GetObject(typeof(T), objectUrl);
_RemoteObjects[key] = instance;
}
}
return(_RemoteObjects[key]);
}
/// <summary>
/// 获取远程对象（默认为第一个RemotingClient的默认服务器）
/// </summary>
/// <param name="remoteObjectName"></param>
/// <returns></returns>
public T GetRemotingObject(string remoteObjectName)
{
RemotingHost host = null;
foreach (KeyValuePair <string, RemotingHost> kvp in _RemotingConfiguration.RemotingHosts)
{
host = kvp.Value;
break;
}
if (host != null)
{
return(GetRemotingObject(host.Name, remoteObjectName));
}
else
{
return(default(T));
}
}
void CheckRemotingHost(RemotingHost host)
{
string objectUrl = string.Empty;
RemotingServer defaultServer = host.Servers[host.DefaultServer];
string usableServerUrl = this.GetUsableServerUrl(host);
bool flag = false; //是否需要重设当前可用服务器标志
host.IsChecking = true;
//首先检查当前可用服务器
try
{
objectUrl = cfg.GetRemoteObjectUrl(usableServerUrl, "RemotingTest");
IRemotingTest t = (IRemotingTest)Activator.GetObject(typeof(RemotingTest), objectUrl);
t.GetDate();
WriteLog(host.Name, usableServerUrl, true, "ok");
}
catch (Exception ex)
{
flag = true; //需要重设当前可用服务器标志
WriteLog(host.Name, usableServerUrl, false, ex.Message);
}
//若当前可用服务器不是默认服务器，则再检查默认服务器，若其可用，则还原
if (defaultServer.ServerUrl != usableServerUrl)
{
try
{
objectUrl = cfg.GetRemoteObjectUrl(defaultServer.ServerUrl, "RemotingTest");
IRemotingTest t = (IRemotingTest)Activator.GetObject(typeof(RemotingTest), objectUrl);
t.GetDate();
AppDomain.CurrentDomain.SetData(host.Name, defaultServer.ServerUrl);
WriteLog(host.Name, defaultServer.ServerUrl, true, "ok");
}
catch (Exception ex)
{
WriteLog(host.Name, defaultServer.ServerUrl, false, ex.Message);
}
}
string serverUrl = string.Empty;
//遍历其他服务器，检查其状态
foreach (KeyValuePair <string, RemotingServer> kvp in host.Servers)
{
serverUrl = kvp.Value.ServerUrl;
if (serverUrl == usableServerUrl)
{
continue;
}
if (serverUrl == defaultServer.ServerUrl)
{
continue;
}
objectUrl = cfg.GetRemoteObjectUrl(serverUrl, "RemotingTest");
try
{
IRemotingTest t = (IRemotingTest)Activator.GetObject(typeof(RemotingTest), objectUrl);
t.GetDate();
if (flag)
{
AppDomain.CurrentDomain.SetData(host.Name, serverUrl); //重设当前可用服务器
flag = false;
WriteLog(host.Name, serverUrl, true, "ok");
}
WriteLog(host.Name, serverUrl, false, "ok");
}
catch (Exception ex)
{
WriteLog(host.Name, serverUrl, false, ex.Message);
}
}
host.IsChecking = false;
}