private object CallJavaMethod(bool isStatic, object classNameOrJvmObjectReference, string methodName, params object[] parameters)
{
object returnValue = null;
try
{
var overallPayload = PayloadHelper.BuildPayload(isStatic, classNameOrJvmObjectReference, methodName, parameters);
Socket socket = GetConnection();
using (NetworkStream s = new NetworkStream(socket))
{
SerDe.Write(s, overallPayload);
var isMethodCallFailed = SerDe.ReadInt(s);
//TODO - add boolean instead of int in the backend
if (isMethodCallFailed != 0)
{
var jvmFullStackTrace = SerDe.ReadString(s);
string errorMessage = string.Format("JVM method execution failed: {0}", methodName);
logger.LogError(errorMessage);
logger.LogError(jvmFullStackTrace);
throw new Exception(errorMessage);
}
var typeAsChar = Convert.ToChar(s.ReadByte());
switch (typeAsChar) //TODO - add support for other types
{
case 'n':
break;
case 'j':
returnValue = SerDe.ReadString(s);
break;
case 'c':
returnValue = SerDe.ReadString(s);
break;
case 'i':
returnValue = SerDe.ReadInt(s);
break;
case 'd':
returnValue = SerDe.ReadDouble(s);
break;
case 'b':
returnValue = Convert.ToBoolean(s.ReadByte());
break;
case 'l':
returnValue = ReadJvmObjectReferenceCollection(s);
break;
default:
// convert typeAsChar to UInt32 because the char may be non-printable
throw new NotSupportedException(string.Format("Identifier for type 0x{0:X} not supported", Convert.ToUInt32(typeAsChar)));
}
}
sockets.Enqueue(socket);
}
catch (Exception e)
{
logger.LogException(e);
throw;
}
return(returnValue);
}
private object ReadCollection(NetworkStream s)
{
object returnValue;
var listItemTypeAsChar = Convert.ToChar(s.ReadByte());
int numOfItemsInList = SerDe.ReadInt(s);
switch (listItemTypeAsChar)
{
case 'c':
var strList = new List <string>();
for (int itemIndex = 0; itemIndex < numOfItemsInList; itemIndex++)
{
strList.Add(SerDe.ReadString(s));
}
returnValue = strList;
break;
case 'i':
var intList = new List <int>();
for (int itemIndex = 0; itemIndex < numOfItemsInList; itemIndex++)
{
intList.Add(SerDe.ReadInt(s));
}
returnValue = intList;
break;
case 'd':
var doubleList = new List <double>();
for (int itemIndex = 0; itemIndex < numOfItemsInList; itemIndex++)
{
doubleList.Add(SerDe.ReadDouble(s));
}
returnValue = doubleList;
break;
case 'b':
var boolList = new List <bool>();
for (int itemIndex = 0; itemIndex < numOfItemsInList; itemIndex++)
{
boolList.Add(Convert.ToBoolean(s.ReadByte()));
}
returnValue = boolList;
break;
case 'r':
var byteArrayList = new List <byte[]>();
for (int itemIndex = 0; itemIndex < numOfItemsInList; itemIndex++)
{
var byteArrayLen = SerDe.ReadInt(s);
byteArrayList.Add(SerDe.ReadBytes(s, byteArrayLen));
}
returnValue = byteArrayList;
break;
case 'j':
var jvmObjectReferenceList = new List <JvmObjectReference>();
for (int itemIndex = 0; itemIndex < numOfItemsInList; itemIndex++)
{
var itemIdentifier = SerDe.ReadString(s);
jvmObjectReferenceList.Add(new JvmObjectReference(itemIdentifier));
}
returnValue = jvmObjectReferenceList;
break;
default:
// convert listItemTypeAsChar to UInt32 because the char may be non-printable
throw new NotSupportedException(
string.Format("Identifier for list item type 0x{0:X} not supported",
Convert.ToUInt32(listItemTypeAsChar)));
}
return(returnValue);
}
