/// <summary>
/// Converts the string representation of a command to a Command object.
/// A return value indicates whether the conversion succeded or not.
/// </summary>
/// <param name="s">A string containing the command to convert</param>
/// <param name="blackboard">A blackboard which contains all information about modules</param>
/// <param name="cmd">When this method returns, contains the Command equivalent to the command
/// contained in s, if the conversion succeeded, or null if the conversion failed.
/// The conversion fails if the s parameter is a null reference (Nothing in Visual Basic) or is not of the correct format.
/// This parameter is passed uninitialized</param>
/// <param name="ex">When this method returns, contains the Exception generated during the parse operation,
/// if the conversion failed, or null if the conversion succeeded. The conversion fails if the s parameter
/// is a null reference (Nothing in Visual Basic) or is not of the correct format.
/// This parameter is passed uninitialized</param>
/// <returns>true if conversion was successfull, false otherwise</returns>
protected static bool TryParse(string s, Blackboard blackboard, out Command cmd, out Exception ex)
{
IPrototype proto;
//Module source;
//Module destination;
IModuleClient source;
IModuleClient destination;
string sCommand;
string sParams;
string sSrc;
string sDest;
int result;
int id;
cmd = null;
ex = null;
// Extract Data
CommandBase.XtractCommandElements(s, out sSrc, out sDest, out sCommand, out sParams, out result, out id);
if ((sCommand == null) || (result != -1))
{
ex = new ArgumentException("Invalid String", "s");
return false;
}
// Check if source module is specified
if ((sSrc == null) || (sSrc.Length < 1) || !blackboard.Modules.Contains(sSrc))
{
ex = new Exception("No source module found for command provided");
return false;
}
source = blackboard.Modules[sSrc];
// Browse for destination module and prototype
if (!blackboard.FindDestinationModule(sCommand, out destination, out proto))
//throw new Exception("No destination module found for command provided");
{
// No destination module found. Must check if destination is availiable
if ((sDest == null) || (sDest.Length < 1) || !blackboard.Modules.Contains(sDest))
{
ex = new Exception("No destination module found for command provided");
return false;
}
destination = blackboard.Modules[sDest];
proto = null;
}
// Check if command matchs a prototype
if ((proto != null) && proto.ParamsRequired && ((sParams == null) || (sParams.Length < 1)))
{
ex = new Exception("Invalid string. The Command requires parameters");
return false;
}
// Create the Command
cmd = new Command(source, destination, sCommand, sParams, id);
cmd.prototype = proto;
cmd.sentTime = DateTime.Now;
return true;
}
/// <summary>
/// Converts the string representation of a response to a Response object.
/// A return value indicates whether the conversion succeded or not.
/// <param name="s">A string containing the response to convert</param>
/// <param name="blackboard">A blackboard which contains all information about modules</param>
/// <param name="response">When this method returns, contains the Response equivalent to the response
/// contained in s, if the conversion succeeded, or null if the conversion failed.
/// The conversion fails if the s parameter is a null reference (Nothing in Visual Basic) or is not of the correct format.
/// This parameter is passed uninitialized</param>
/// <param name="ex">When this method returns, contains the Exception generated during the parse operation,
/// if the conversion failed, or null if the conversion succeeded. The conversion fails if the s parameter
/// is a null reference (Nothing in Visual Basic) or is not of the correct format.
/// This parameter is passed uninitialized</param>
/// </summary>
/// <returns>true if conversion was successfull, false otherwise</returns>
protected static bool TryParse(string s, Blackboard blackboard, out Response response, out Exception ex)
{
IPrototype proto;
IModuleClient source;
IModuleClient destination;
string sCommand;
string sParams;
string sSrc;
string sDest;
bool result;
int iResult;
int id;
ex = null;
response = null;
// Extract Data
CommandBase.XtractCommandElements(s, out sSrc, out sDest, out sCommand, out sParams, out iResult, out id);
if ((sCommand == null) || (iResult == -1))
{
ex = new ArgumentException("Invalid String", "s");
return false;
}
result = iResult == 1;
// Check if source module is specified
if ((sSrc == null) || (sSrc.Length < 1) || !blackboard.Modules.Contains(sSrc))
{
ex = new Exception("No source module found for response provided");
return false;
}
source = blackboard.Modules[sSrc];
// Browse for destination module and prototype
if (!blackboard.FindDestinationModule(sCommand, out source, out proto))
//Since the response arrived from a module which can't generate it a exception is rised
{
ex = new Exception("Sender module and generator module does not match");
return false;
}
// if destination module is specified, then it mus be set
if ((sDest != null) && (sDest.Length > 0) && source.Parent.Modules.Contains(sDest))
destination = source.Parent.Modules[sDest];
// Else, since there is no way at this point to determine which is destination module for response
// and this is no specified, it is set to null, to allow blackboard to find an apropiate one
else
destination = null;
// Check if response matchs a prototype
if ((proto != null) && proto.ParamsRequired && ((sParams == null) || (sParams.Length < 1)))
{
ex = new Exception("Invalid string. The Response requires parameters");
return false;
}
// Create the Response
response = new Response(source, destination, sCommand, sParams, result, id);
response.prototype = proto;
if (!response.success) response.failReason = ResponseFailReason.ExecutedButNotSucceded;
return true;
}
/// <summary>
/// Converts the string representation of a command to a Command object.
/// A return value indicates whether the conversion succeded or not.
/// </summary>
/// <param name="s">A string containing the command to convert</param>
/// <param name="blackboard">A blackboard which contains all information about modules</param>
/// <param name="cmd">When this method returns, contains the Command equivalent to the command
/// contained in s, if the conversion succeeded, or null if the conversion failed.
/// The conversion fails if the s parameter is a null reference (Nothing in Visual Basic) or is not of the correct format.
/// This parameter is passed uninitialized</param>
/// <param name="ex">When this method returns, contains the Exception generated during the parse operation,
/// if the conversion failed, or null if the conversion succeeded. The conversion fails if the s parameter
/// is a null reference (Nothing in Visual Basic) or is not of the correct format.
/// This parameter is passed uninitialized</param>
/// <returns>true if conversion was successfull, false otherwise</returns>
protected static bool TryParse(string s, Blackboard blackboard, out Command cmd, out Exception ex)
{
Regex rx;
Match m;
Prototype proto;
//Module source;
//Module destination;
IModule source;
IModule destination;
string sCommand;
string sParams;
string sSrc;
string sDest;
string sId;
int id;
cmd = null;
ex = null;
// Regular Expresion Generation
//rx = new Regex(@"((?<src>[\w\-]+)(\s+(?<dest>[\w\-]+))?\s+)?(?<cmd>[A-Za-z_]+)\s+(""(?<params>[^""]*)"")?\s+(@(?<id>\d+))?");
rx = rxCommandFromBlackboard;
m = rx.Match(s);
// Check if input string matchs Regular Expression
if (!m.Success)
{
ex = new ArgumentException("Invalid String", "s");
return false;
}
// Extract Data
sCommand = m.Result("${cmd}").ToLower();
sParams = m.Result("${params}");
sId = m.Result("${id}");
sSrc = m.Result("${src}");
sDest = m.Result("${dest}");
if ((sId == null) || (sId.Length < 1)) id = -1;
else id = Int32.Parse(sId);
// Check if source module is specified
if ((sSrc == null) || (sSrc.Length < 1) || !blackboard.Modules.Contains(sSrc))
{
ex = new Exception("No source module found for command provided");
return false;
}
source = blackboard.Modules[sSrc];
// Browse for destination module and prototype
if (!blackboard.FindDestinationModule(sCommand, out destination, out proto))
//throw new Exception("No destination module found for command provided");
{
// No destination module found. Must check if destination is availiable
if ((sDest == null) || (sDest.Length < 1) || !blackboard.Modules.Contains(sDest))
{
ex = new Exception("No destination module found for command provided");
return false;
}
destination = blackboard.Modules[sDest];
proto = null;
}
// Check if command matchs a prototype
if ((proto != null) && proto.ParamsRequired && ((sParams == null) || (sParams.Length < 1)))
{
ex = new Exception("Invalid string. The Command requires parameters");
return false;
}
// Create the Command
cmd = new Command(source, destination, sCommand, sParams, id);
cmd.prototype = proto;
cmd.sentTime = DateTime.Now;
return true;
}
/// <summary>
/// Converts the string representation of a response to a Response object.
/// A return value indicates whether the conversion succeded or not.
/// <param name="s">A string containing the response to convert</param>
/// <param name="blackboard">A blackboard which contains all information about modules</param>
/// <param name="response">When this method returns, contains the Response equivalent to the response
/// contained in s, if the conversion succeeded, or null if the conversion failed.
/// The conversion fails if the s parameter is a null reference (Nothing in Visual Basic) or is not of the correct format.
/// This parameter is passed uninitialized</param>
/// <param name="ex">When this method returns, contains the Exception generated during the parse operation,
/// if the conversion failed, or null if the conversion succeeded. The conversion fails if the s parameter
/// is a null reference (Nothing in Visual Basic) or is not of the correct format.
/// This parameter is passed uninitialized</param>
/// </summary>
/// <returns>true if conversion was successfull, false otherwise</returns>
protected static bool TryParse(string s, Blackboard blackboard, out Response response, out Exception ex)
{
Regex rx;
Match m;
Prototype proto;
//Module source;
IModule source;
//Module destination;
IModule destination;
string sCommand;
string sParams;
string sSrc;
string sDest;
string sId;
string sResult;
bool result;
int id;
ex = null;
response = null;
// Regular Expresion Generation
//rx = new Regex(@"((?<src>[\w\-]+)(\s+(?<dest>[\w\-]+))?\s+)?(?<cmd>[A-Za-z_]+)\s+(""(?<params>[^""]*)"")?\s+(@(?<id>\d+))?");
rx = rxResponseFromBlackboard;
m = rx.Match(s);
// Check if input string matchs Regular Expression
if (!m.Success)
{
ex = new ArgumentException("Invalid String", "s");
return false;
}
// Extract Data
sCommand = m.Result("${cmd}").ToLower();
sParams = m.Result("${params}");
sId = m.Result("${id}");
sSrc = m.Result("${src}");
sDest = m.Result("${dest}");
sResult = m.Result("${result}");
if ((sResult == null) || ((sResult != "1") && (sResult != "0")))
{
ex = new Exception("Invalid string. No suitable result value found");
return false;
}
result = (sResult == "1");
if ((sId == null) || (sId.Length < 1)) id = -1;
else id = Int32.Parse(sId);
// Check if source module is specified
if ((sSrc == null) || (sSrc.Length < 1) || !blackboard.Modules.Contains(sSrc))
{
ex = new Exception("No source module found for response provided");
return false;
}
source = blackboard.Modules[sSrc];
// Browse for destination module and prototype
if (!blackboard.FindDestinationModule(sCommand, out source, out proto))
//Since the response arrived from a module which can't generate it a exception is rised
{
ex = new Exception("Sender module and generator module does not match");
return false;
}
// if destination module is specified, then it mus be set
if ((sDest != null) && (sDest.Length > 0) && source.Parent.Modules.Contains(sDest))
destination = source.Parent.Modules[sDest];
// Else, since there is no way at this point to determine which is destination module for response
// and this is no specified, it is set to null, to allow blackboard to find an apropiate one
else
destination = null;
// Check if response matchs a prototype
if ((proto != null) && proto.ParamsRequired && ((sParams == null) || (sParams.Length < 1)))
{
ex = new Exception("Invalid string. The Response requires parameters");
return false;
}
// Create the Response
response = new Response(source, destination, sCommand, sParams, result, id);
response.prototype = proto;
if (!response.success) response.failReason = ResponseFailReason.ExecutedButNotSucceded;
return true;
}
