I'm using drools for alert generation and whenever I meet some condition I'm able to fire a rule and generate an alert.
My requirement further is for motion and smoke alert, we need to fire a rule on weekdays (i.e., except Saturday and Sunday).
How is it possible?
You can generate the alert based betwwen times and you can generate the alert by exluding the days, in this case i have done some r&d. for this you can fallow below steps:
Drl file:
package com.javacodegeeks.drools;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Locale;
global String topicLevel
rule "Drools Introduction"
when
$droolsIntro : DroolsIntroduction( topic == "Drools" )
then
System.out.println($droolsIntro.introduceYourself() + ", topic level is " + getDefaultIfNull(topicLevel));
end
rule "Drools Introduction2"
when
$droolsIntro : DroolsIntroduction( isTimeBetweenTwoTime("10:12:12","13:13:13","11:12:12") && isExcludeDay("000000","2016-08-08 21:5:21") )
then
System.out.println("time valid and sunday");
end
function String getDefaultIfNull(String topicLevel) {
return topicLevel == null ? "Moderate" : topicLevel;
}
function Boolean isTimeBetweenTwoTime(String initialTime, String finalTime, String currentTime) {
Boolean valid = false;
System.out.println("time check started");
try {
if (currentTime == null) {
currentTime = new SimpleDateFormat("HH:mm:ss").format(Calendar.getInstance().getTime());
System.out.println("check current time "+currentTime);
}
System.out.println(initialTime+" -- "+finalTime+" -- -- "+currentTime);
String reg = "^([0-1][0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])$";
if (initialTime.matches(reg) && finalTime.matches(reg) && currentTime.matches(reg)) {
valid = false;
// Start Time
java.util.Date inTime = new SimpleDateFormat("HH:mm:ss").parse(initialTime);
Calendar initialTimecalendar1 = Calendar.getInstance();
initialTimecalendar1.setTime(inTime);
// Current Time
java.util.Date checkTime = new SimpleDateFormat("HH:mm:ss").parse(currentTime);
Calendar currentTimecalendar3 = Calendar.getInstance();
currentTimecalendar3.setTime(checkTime);
// End Time
java.util.Date finTime = new SimpleDateFormat("HH:mm:ss").parse(finalTime);
Calendar finalTimecalendar2 = Calendar.getInstance();
finalTimecalendar2.setTime(finTime);
if (finalTime.compareTo(initialTime) < 0) {
finalTimecalendar2.add(Calendar.DATE, 1);
currentTimecalendar3.add(Calendar.DATE, 1);
}
java.util.Date actualTime = currentTimecalendar3.getTime();
if ((actualTime.after(initialTimecalendar1.getTime())
|| actualTime.compareTo(initialTimecalendar1.getTime()) == 0)
&& actualTime.before(finalTimecalendar2.getTime())) {
System.out.println("condition matched --- ");
valid = true;
}
System.out.println("returning "+valid);
return valid;
} else {
System.out.println("else false "+valid);
return valid;
// throw new IllegalArgumentException("not a valid time,
// expecting HH:MM:SS format");
}
} catch (Exception e) {
System.out.println("exception "+valid);
valid=false;
}
System.out.println("finale "+valid);
return valid;
}
function Boolean isExcludeDay(String validdays,String timeStamp) {
try {
System.out.println("validdays"+validdays);
System.out.println("timeStamp"+timeStamp);
DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.ENGLISH);
Date date = format.parse(timeStamp);
Calendar currentTimecalendar3 = Calendar.getInstance();
currentTimecalendar3.setTime(date);
int dayOfWeek = currentTimecalendar3.get(Calendar.DAY_OF_WEEK)-1;
Character a_char = validdays.charAt(dayOfWeek);
System.out.println( a_char );
if(a_char.compareTo('1')==0){
return false;
}else{
return true;
}
} catch (ParseException e) {
// TODO Auto-generated catch block
//e.printStackTrace();
return false;
}
//return true;
//return true;
}
Java code:
KieServices ks = KieServices.Factory.get();
KieContainer kContainer = ks.getKieClasspathContainer();
KieSession kSession = kContainer.newKieSession("ksession-rules");
DroolsIntroduction droolsIntroduction = new DroolsIntroduction("Drools");
kSession.insert(droolsIntroduction);
kSession.insert(new DroolsIntroduction("All"));
kSession.insert(new DroolsIntroduction("Specific"));
kSession.fireAllRules();
/* try {
String string1 = "11:06:13";
Date time1 = new SimpleDateFormat("HH:mm:ss").parse(string1);
Calendar calendar1 = Calendar.getInstance();
calendar1.setTime(time1);
String string2 = "10:49:00";
Date time2 = new SimpleDateFormat("HH:mm:ss").parse(string2);
Calendar calendar2 = Calendar.getInstance();
calendar2.setTime(time2);
calendar2.add(Calendar.DATE, 1);
String someRandomTime = "01:00:00";
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(Calendar.getInstance().getTime());
String currenttime = new SimpleDateFormat("HH:mm:ss").format(Calendar.getInstance().getTime());
Date d = new SimpleDateFormat("HH:mm:ss").parse(currenttime);
Calendar calendar3 = Calendar.getInstance();
calendar3.setTime(d);
calendar3.add(Calendar.DATE, 1);
Date x = calendar3.getTime();
if (x.after(calendar1.getTime()) && x.before(calendar2.getTime())) {
//checkes whether the current time is between 14:49:00 and 20:11:13.
System.out.println("checkes whether the current time is between 14:49:00 and 20:11:13");
System.out.println(true);
}
} catch (Exception e) {
e.printStackTrace();
}
String ccurrenttime = new SimpleDateFormat("HH:mm:ss").format(Calendar.getInstance().getTime());
System.out.println(ccurrenttime);
isBetweenValidTime("09:33:00","09:38:00",ccurrenttime);*/
kSession.setGlobal("topicLevel", "Beginner");
kSession.insert(new DroolsIntroduction("All"));
kSession.fireAllRules();