live/examples/psl2pdl.etl

rule Project2Project
	transform s : Source!Project
	to t : Target!Project {

	t.title = s.title;

	// Transform the tasks of the source
	// project using the Task2Deliverable
	// rule and assign the result to
	// t.deliverables
	t.deliverables ::= s.tasks;
}

// Transform each task to a deliverable
// to be submitted at the end of the task
rule Task2Deliverable
	transform t : Source!Task
	to d : Target!Deliverable {

	d.title = t.title + " Report";
	d.due = t.start + t.duration;

	// The lead of the deliverable
	// is the person with the highest
	// effort in the task
	d.lead ::= t.effort.sortBy(e|-e.percentage).
		first()?.person;
}

// @lazy means that persons will be transformed 
// only upon request. As such, Charlie will not 
// appear in the target model because he leads
// no deliverables
@lazy
rule Person2Person
	transform s : Source!Person
	to t : Target!Person {

	t.name = s.name;
}