/**
* Return the argument contained by this entity that is return. If there is no such argument,
* return null. This method is read-synchronized on the workspace.
*
* @return the argument return, or null if none exists.
*/
public Argument getArgumentReturn() {
try {
_workspace.getReadAccess();
Iterator arguments = this.argumentsList().iterator();
Argument returnValue = null;
while (arguments.hasNext()) {
Argument argument = (Argument) arguments.next();
if ((argument != null) && argument.isReturn()) {
return argument;
}
}
return returnValue;
} finally {
_workspace.doneReading();
}
}
/**
* Update the ports to match the arguments. If an Argument has no corresponding port, a Port is
* added. If a Port does not have a corresponding Argument, then the Port is removed. If a input
* and/or output nature of a Port does not match the Argument with the same name, then the Port is
* adjusted.
*
* @exception IllegalActionException If there is a problem updating the ports.
*/
public void updatePorts() throws IllegalActionException {
Iterator arguments = this.argumentsList().iterator();
TypedIOPort port;
while (arguments.hasNext()) {
Argument argument = (Argument) arguments.next();
port = (TypedIOPort) this.getPort(argument.getName());
if (port == null) {
MoMLChangeRequest request = null;
try {
if (argument.isReturn()) {
request =
new MoMLChangeRequest(
this,
this,
"<port name=\""
+ argument.getName()
+ "\" class=\"ptolemy.actor.TypedIOPort\">\n"
+ " <property name=\"output\"/>\n"
+ "</port>");
} else if (argument.isInput() && argument.isOutput()) {
request =
new MoMLChangeRequest(
this,
this,
"<port name=\""
+ argument.getName()
+ "in"
+ "\" class=\"ptolemy.actor.TypedIOPort\">\n"
+ " <property name=\"input\"/>\n"
+ "</port>\n"
+ "<port name=\""
+ argument.getName()
+ "out"
+ "\" class=\"ptolemy.actor.TypedIOPort\">\n"
+ " <property name=\"output\"/>\n"
+ "</port>");
} else {
request =
new MoMLChangeRequest(
this,
this,
"<port name=\""
+ argument.getName()
+ "\" class=\"ptolemy.actor.TypedIOPort\">\n"
+ (argument.isInput() ? " <property name=\"input\"/>\n" : "")
+ (argument.isOutput() ? " <property name=\"output\"/>\n" : "")
+ "</port>");
}
request.setUndoable(true);
requestChange(request);
} catch (Throwable throwable) {
throw new IllegalActionException(
this,
throwable,
"MoMLChangeRequest for \""
+ argument.getName()
+ "\" failed. Request was:\n"
+ request);
}
} else {
// We have a preexisting port, synchronized the
// arguments and the ports.
if (argument.isReturn()) {
if (port.isInput()) {
MoMLChangeRequest request =
new MoMLChangeRequest(
this,
this,
"<port name=\""
+ argument.getName()
+ "\" class=\"ptolemy.actor.TypedIOPort\">\n"
+ " <deleteProperty name=\"input\"/>\n"
+ (port.isOutput() ? "" : " <property name=\"output\"/>\n")
+ "</port>");
request.setUndoable(true);
requestChange(request);
}
if (!port.isOutput()) {
MoMLChangeRequest request =
new MoMLChangeRequest(
this,
this,
"<port name=\""
+ argument.getName()
+ "\" class=\"ptolemy.actor.TypedIOPort\">\n"
+ " <property name=\"output\"/>\n"
+ "</port>");
request.setUndoable(true);
requestChange(request);
}
} else /*if (port.isInput() != argument.isInput()
|| port.isOutput() != argument.isOutput())*/ {
MoMLChangeRequest request =
new MoMLChangeRequest(
this,
this,
"<port name=\""
+ argument.getName()
+ "\" class=\"ptolemy.actor.TypedIOPort\">\n"
+ (port.isInput()
? (argument.isInput() ? "" : "<deleteProperty name=\"input\"/>\n")
: (argument.isInput() ? "<property name=\"input\"/>\n" : ""))
+ (port.isOutput()
? (argument.isOutput() ? "" : "<deleteProperty name=\"output\"/>\n")
: (argument.isOutput() ? "<property name=\"output\"/>\n" : ""))
+ "</port>");
request.setUndoable(true);
requestChange(request);
}
}
}
// Remove any ports that do not have arguments.
Iterator ports = portList().iterator();
while (ports.hasNext()) {
port = (TypedIOPort) ports.next();
Argument argument = (Argument) _argumentsList.get(port.getName());
if (argument == null) {
MoMLChangeRequest request =
new MoMLChangeRequest(this, this, "<deletePort name=\"" + port.getName() + "\"/>");
request.setUndoable(true);
requestChange(request);
}
}
}
/**
* For each Argument, a port of the same name is created, belonging to this argument.
*
* @exception IllegalActionException If there is a problem creating the ports.
*/
public void createPorts() throws IllegalActionException {
Iterator arguments = this.argumentsList().iterator();
TypedIOPort port;
while (arguments.hasNext()) {
Argument argument = (Argument) arguments.next();
port = (TypedIOPort) this.getPort(argument.getName());
if (port == null) {
if (argument.isReturn()) {
try {
MoMLChangeRequest request =
new MoMLChangeRequest(
this,
this,
"<port name=\""
+ argument.getName()
+ "\" class=\"ptolemy.actor.TypedIOPort\">\n"
+ " <property name=\"output\"/>\n"
+ "</port>");
request.setUndoable(true);
requestChange(request);
} catch (Exception ex) {
throw new IllegalActionException(
this,
ex,
"Unable to construct port " + "port for argument \"" + argument.getName() + "\"");
}
} else if (argument.isInput() && argument.isOutput()) {
try {
MoMLChangeRequest request =
new MoMLChangeRequest(
this,
this,
"<group>\n"
+ " <port name=\""
+ argument.getName()
+ "in"
+ "\" class=\"ptolemy.actor.TypedIOPort\">\n"
+ " <property name=\"input\"/>\n"
+ " </port>\n"
+ " <port name=\""
+ argument.getName()
+ "out"
+ "\" class=\"ptolemy.actor.TypedIOPort\">\n"
+ " <property name=\"output\"/>\n"
+ " </port>\n"
+ "</group>");
request.setUndoable(true);
requestChange(request);
} catch (Exception ex) {
throw new IllegalActionException(
this,
ex,
"Unable to construct "
+ "input or output "
+ "port for argument \""
+ argument.getName()
+ "\"");
}
} else {
try {
MoMLChangeRequest request =
new MoMLChangeRequest(
this,
this,
"<port name=\""
+ argument.getName()
+ "\" class=\"ptolemy.actor.TypedIOPort\">\n"
+ (argument.isInput() ? " <property name=\"input\"/>\n" : "")
+ (argument.isOutput() ? " <property name=\"output\"/>\n" : "")
+ "</port>");
request.setUndoable(true);
requestChange(request);
} catch (Exception ex) {
throw new IllegalActionException(
this,
ex,
"Unable to construct " + "port for argument \"" + argument.getName() + "\"");
}
}
} else {
// synchronized the arguments and the ports
if (argument.isReturn()) {
MoMLChangeRequest request =
new MoMLChangeRequest(
this,
this,
"<port name=\""
+ argument.getName()
+ "\" class=\"ptolemy.actor.TypedIOPort\"\n"
+ " <property name=\"output\"/>\n"
+ "</port>");
request.setUndoable(true);
requestChange(request);
} else {
MoMLChangeRequest request =
new MoMLChangeRequest(
this,
this,
"<port name=\""
+ argument.getName()
+ "\" class=\"ptolemy.actor.TypedIOPort\"\n"
+ " <property name=\"input\"/>\n"
+ "</port>");
request.setUndoable(true);
requestChange(request);
}
}
port = (TypedIOPort) this.getPort(argument.getName());
if (port != null) {
port.setTypeEquals(BaseType.GENERAL);
}
}
}
