source: trunk/grails-app/domain/dbnp/studycapturing/Event.groovy @ 111

package dbnp.studycapturing

import groovy.time.*

/**
 * The Event class describes an actual event, as it has happened to a certain subject. Often, the same event occurs
 * to multiple subjects at the same time. That is why the actual description of the event is factored out into a more
 * general EventDescription class. Events that also lead to sample(s) should be instantiated as SamplingEvents.
 */
class Event {

    Subject subject
    EventDescription eventDescription
    Date startTime
    Date endTime


    // static constraints = { }
    def getDuration() {
        //endTime - startTime  // this is not documented and does not work either
                               // so, it's useless.
                               // thus, do this manually as follows

        def timeMillis = (endTime.getTime() - startTime.getTime()).abs()
        def days    = (timeMillis/(1000*60*60*24)).toInteger()
        def hours   = (timeMillis/(1000*60*60)).toInteger()
        def minutes = (timeMillis/(1000*60)).toInteger()
        def seconds = (timeMillis/1000).toInteger()
        def millis  = (timeMillis%1000).toInteger()

        return new Duration(days,hours,minutes,seconds,millis)
    }


    def getDurationString()
    {
        def d = getDuration()
        return  "${d.days} days, ${d.hours} hrs, ${d.minutes} min, ${d.seconds} sec."
    }


}