package net.sourceforge.ganttproject.task.dependency.constraint;
import java.util.Date;
import net.sourceforge.ganttproject.GanttCalendar;
import net.sourceforge.ganttproject.GanttTaskRelationship;
import net.sourceforge.ganttproject.language.GanttLanguage;
import net.sourceforge.ganttproject.task.Task;
import net.sourceforge.ganttproject.task.TaskActivity;
import net.sourceforge.ganttproject.task.dependency.TaskDependency;
import net.sourceforge.ganttproject.task.dependency.TaskDependencyConstraint;
import net.sourceforge.ganttproject.task.dependency.TaskDependency.ActivityBinding;
/**
* Dependant task starts not earlier than dependee finishes Created by IntelliJ
* IDEA. User: bard
*/
public class FinishStartConstraintImpl extends ConstraintImpl implements
TaskDependencyConstraint {
public FinishStartConstraintImpl() {
super(GanttTaskRelationship.FS, GanttLanguage.getInstance().getText(
"finishstart"));
}
public TaskDependencyConstraint.Collision getCollision() {
TaskDependencyConstraint.Collision result = null;
Task dependee = getDependency().getDependee();
Task dependant = getDependency().getDependant();
GanttCalendar dependeeEnd = dependee.getEnd().Clone();
// GanttCalendar dependeeEnd = dependee.getEnd();
GanttCalendar dependantStart = dependant.getStart();
int difference = getDependency().getDifference();
GanttCalendar comparisonDate = dependantStart.Clone();
comparisonDate.add(difference);
boolean isActive = getDependency().getHardness()==TaskDependency.Hardness.RUBBER ? dependeeEnd
.compareTo(comparisonDate) > 0 : dependeeEnd
.compareTo(comparisonDate) != 0;
// new Exception("[FinishStartConstraint] isActive="+isActive+"
// dependdee="+dependee+" end="+dependeeEnd+"
// start="+dependantStart).printStackTrace();
addDelay(dependeeEnd);
result = new TaskDependencyConstraint.DefaultCollision(dependeeEnd,
TaskDependencyConstraint.Collision.START_LATER_VARIATION,
isActive);
return result;
}
public ActivityBinding getActivityBinding() {
TaskActivity[] dependantActivities = getDependency().getDependant()
.getActivities();
TaskActivity[] dependeeActivities = getDependency().getDependee()
.getActivities();
TaskActivity theDependant = dependantActivities[0];
TaskActivity theDependee = dependeeActivities[dependeeActivities.length - 1];
return new DependencyActivityBindingImpl(theDependant, theDependee,
new Date[] { theDependant.getStart(), theDependee.getEnd() });
}
}