public String sendMessage(String cmd, MemoryStream msg)
{
int tryCount = 0;
int tryLimit = 3;
Exception lastException = new Exception("Unknown exception");
String respMessage = "";
Logger.GetInstance().Debug("SeapClient send message: <" + cmd + ">");
lock (this)
{
while (tryCount < tryLimit)
{
try
{
//clean and discard data on sockect if any
if (stream.DataAvailable == true)
{
reader.ReadToEnd();
}
writer.WriteLine(cmd);
writer.Flush();
if (msg != null)
{
binaryWriter.Write(msg.GetBuffer(), 0, (int)msg.Length);
binaryWriter.Flush();
}
respMessage = reader.ReadLine().Trim();
tryCount = 0;
break;
}
catch (Exception e)
{
Logger.GetInstance().Debug("IO Exception tryCount:" + tryCount);
lastException = e;
tryCount = handleStreamError(tryCount);
}
}
if (tryCount >= tryLimit)
{
Logger.GetInstance().Error("SeapClient connection error, engine unreachable:" + lastException.Message + " " + lastException.StackTrace);
SvcController.StopMyDLP();
return("");
}
}
Logger.GetInstance().Debug("SeapClient read response: <" + respMessage + ">");
return(respMessage);
}
public static void Start()
{
javaStartCmd = @"cd " + Configuration.JavaBackendPath + " && Run.bat";
erlStartCmd = @"cd " + Configuration.ErlangPath + " && Run.bat";
erlInstallCmd = @"cd " + Configuration.ErlangPath + " && RegisterService.bat";
erlStartInteractiveCmd = @"cd " + Configuration.ErlangPath + " && InteractiveRun.bat";
DelPids();
KillProcByName("erl");
KillProcByName("werl");
KillProcByName("java");
EnvVar[] erlEnv = new EnvVar[] {
new EnvVar("MYDLP_CONF", GetShortPath(Configuration.MydlpConfPath).Replace(@"\", @"/")),
new EnvVar("MYDLPBEAMDIR", GetShortPath(Configuration.ErlangPath)),
new EnvVar("MYDLP_APPDIR", GetShortPath(Configuration.AppPath)),
new EnvVar("ERLANG_HOME", GetShortPath(Configuration.ErlangHome))
};
int phyMemory = GetPhysicalMemory();
int javaMemory = 256;
if (phyMemory < 300)
{
Logger.GetInstance().Error("Not enough memory, MyDLP Engine can not function under 300 MB memory");
Engine.Stop();
return;
}
else if (phyMemory < 600)
{
javaMemory = 256;
}
else
{
javaMemory = 256 + ((phyMemory - 600) / 4);
if (javaMemory > xmx32BitLimit)
{
javaMemory = xmx32BitLimit;
}
}
Logger.GetInstance().Info("Setting Java memory: " + javaMemory);
EnvVar[] javaEnv = new EnvVar[] {
new EnvVar("JRE_BIN_DIR", GetShortPath(Configuration.JavaBinPaths)),
new EnvVar("BACKEND_DIR", GetShortPath(Configuration.JavaPath)),
new EnvVar("MYDLP_APPDIR", GetShortPath(Configuration.AppPath)),
new EnvVar("JAVAXMX", javaMemory.ToString())
};
if (!System.Environment.UserInteractive && SvcController.IsServiceInstalled("mydlpengine"))
{
if (SvcController.IsServiceRunning("mydlpengine"))
{
SvcController.StopService("mydlpengine", 5000);
}
ProcessControl.ExecuteCommandSync(new ExecuteParameters("sc delete mydlpengine", "SC", erlEnv));
}
try
{
using (RegistryKey key = Registry.LocalMachine.OpenSubKey("Software\\Ericsson\\Erlang", true))
{
key.DeleteSubKeyTree("ErlSrv");
}
}
catch
{
//Logger.GetInstance().Info("Unable to delete uneccessary keys or keys do not exists");
}
Logger.GetInstance().Info("Starting Java Backend");
ProcessControl.ExecuteCommandAsync(javaStartCmd, "JAVA:", javaEnv);
Configuration.SetErlConf();
Logger.GetInstance().Info("Starting Erlang Backend");
if (System.Environment.UserInteractive)
{
ProcessControl.ExecuteCommandAsync(erlStartInteractiveCmd, "WERL", erlEnv);
}
else
{
ProcessControl.ExecuteCommandAsync(erlStartCmd, "ERL", erlEnv);
}
}
public static void Stop()
{
Logger.GetInstance().Info("Stopping Erlang Backend");
/*
* Logger.GetInstance().Debug("Kill erlang by pid:" + Configuration.ErlPid);
* if (Configuration.ErlPid != 0)
* {
* try
* {
* Process p = Process.GetProcessById(Configuration.ErlPid);
* p.Kill();
* }
* catch
* {
* Logger.GetInstance().Debug("Kill erlang by pid failed:" + Configuration.ErlPid);
* }
* }*/
if (System.Environment.UserInteractive)
{
KillProcByName("werl");
}
else
{
KillProcByName("erl");
}
KillProcByName("epmd");
Logger.GetInstance().Info("Stopping Java Backend");
/*
* Logger.GetInstance().Debug("Kill java by pid:" + Configuration.JavaPid);
* if (Configuration.JavaPid != 0)
* {
* try
* {
* Process p = Process.GetProcessById(Configuration.JavaPid);
* p.Kill();
* }
* catch
* {
* Logger.GetInstance().Debug("Kill java by pid failed:" + Configuration.JavaPid);
* }
* }*/
KillProcByName("java");
if (!System.Environment.UserInteractive && SvcController.IsServiceInstalled("mydlpengine"))
{
if (SvcController.IsServiceRunning("mydlpengine"))
{
SvcController.StopService("mydlpengine", 5000);
}
EnvVar[] erlEnv = new EnvVar[] {
new EnvVar("MYDLP_CONF", GetShortPath(Configuration.MydlpConfPath).Replace(@"\", @"/")),
new EnvVar("MYDLPBEAMDIR", GetShortPath(Configuration.ErlangPath)),
new EnvVar("MYDLP_APPDIR", GetShortPath(Configuration.AppPath)),
new EnvVar("ERLANG_HOME", GetShortPath(Configuration.ErlangHome))
};
ProcessControl.ExecuteCommandSync(new ExecuteParameters("sc delete mydlpengine", "SC", erlEnv));
}
DelPids();
try
{
using (RegistryKey key = Registry.LocalMachine.OpenSubKey("Software\\Ericsson\\Erlang", true))
{
key.DeleteSubKeyTree("ErlSrv");
}
}
catch
{
//Logger.GetInstance().Info("Unable to delete uneccessary keys or keys do not exists");
}
}
