public Activity addActivity(
String activityName, int activityDuration, String predecessors[], int activityResources[]) {
Activity newActivity = null;
if (this.isUnique(activityName)) {
newActivity =
new Activity(
activityName, activityDuration, activityResources, this.getMaxNumOfResources());
// the predecessors of START are NULL
if (predecessors != null) {
if (predecessors.length == 0) {
Activity current = getActivityByName("START");
newActivity.addPredecessor(current);
current.addSuccessor(newActivity);
} else {
for (int i = 0; i < predecessors.length; i++) {
Activity current = getActivityByName(predecessors[i]);
if (current != null) {
newActivity.addPredecessor(current);
current.addSuccessor(newActivity);
} else {
view.printDebugln(
"Cannot add predecessor relation to non-exisiting node " + predecessors[i]);
}
}
}
}
activities.add(newActivity);
} else {
// activity name is not unique or activity already exists
view.printDebugln(
"Cannot add activity " + activityName + " because the name already exists.");
}
return newActivity;
}
private void addArc(String from, String to) {
Activity activityFrom = getActivityByName(from);
Activity activityTo = getActivityByName(to);
if (activityFrom != null && activityTo != null) {
activityFrom.addSuccessor(activityTo);
activityTo.addPredecessor(activityFrom);
} else view.printDebugln("Cannot add arc: at least one activity is currently not present.");
}