/**
* Returns the {@linkplain Lifeline} object made from the current line}.
*
* @return the {@linkplain Lifeline} object made from the current line
* @throws SyntaxError if the next object declaration is not well-formed
*/
public Lifeline nextObject() throws SyntaxError {
if (section == 1) {
throw new IllegalStateException("reading objects has already been finished");
}
if (currentLine() == null) {
throw new IllegalStateException("nothing to read");
}
if (currentLine().indexOf(':') == -1) {
throw new SyntaxError(this, "not a valid object declaration - ':' missing");
}
ArrayList<Region> regions = new ArrayList<Region>();
String[] parts =
grep.parse("(\\/?.+?):([^\\[\\]]+?)\\s*(\\[.*?\\]|)\\s*(\".*\"|)", currentLine(), regions);
if (parts == null || parts.length != 4) {
String msg;
if (currentLine().indexOf('.') >= 0) {
msg =
"not a valid object declaration, perhaps you forgot to "
+ "enter an empty line before the message section";
} else {
msg = "not a valid object declaration";
}
throw new SyntaxError(this, msg);
}
setCurrentLine(null);
String name = parts[0];
String type = parts[1];
String flags = parts[2];
String label = parts[3];
if (!label.equals("")) {
label = label.substring(1, label.length() - 1);
}
boolean anon = flags.indexOf('a') >= 0;
boolean role = flags.indexOf('r') >= 0;
boolean process = flags.indexOf('p') >= 0;
boolean hasThread = flags.indexOf('t') >= 0;
boolean autoDestroy = flags.indexOf('x') >= 0;
boolean external = flags.indexOf('e') >= 0;
boolean saveSpace = reuseSpace && flags.indexOf('f') == -1;
Lifeline lifeline;
// if (external && !process) {
// throw new SyntaxError(this,
// "only processes can be declared external");
// }
if (name.startsWith("/")) {
if (type.equals("Actor") || process) {
throw new SyntaxError(this, "processes and actors must be visible");
}
/*
if (hasThread) {
throw new SyntaxError(this,
"invisible objects cannot have their own thread");
}*/
lifeline =
new Lifeline(
name.substring(1),
type,
label,
false,
anon,
role,
false,
false,
autoDestroy,
external,
saveSpace,
diagram);
} else {
if (type.equals("Actor")) {
if (anon) {
throw new SyntaxError(this, "actors cannot be anonymous");
}
}
if ((type.equals("Actor") || process) && hasThread) {
throw new SyntaxError(this, "actors cannot have their own thread");
}
if ((type.equals("Actor") || process) && autoDestroy) {
throw new SyntaxError(this, "actors cannot be (automatically) destroyed");
}
lifeline =
new Lifeline(
parts[0],
parts[1],
label,
true,
anon,
role,
process,
hasThread,
autoDestroy,
external,
false,
diagram);
}
lifeline.setNameRegion(regions.get(0));
int cmt = rawLine().indexOf("#!");
if (cmt >= 0 && cmt + 2 < rawLine().length() - 1) {
String annotation = rawLine().substring(cmt + 2).trim();
annotations.put(lifeline, annotation);
}
return lifeline;
}
