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package net.anotheria.access.custom;

import net.anotheria.access.SecurityObject;
import net.anotheria.access.constraints.CustomConstraint;
import net.anotheria.access.impl.AccessContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * Is met if the value of the submitted count attribute is greater than configured parameter value.
 * @author another
 *
 */
public class CountGreaterThanConstraint implements CustomConstraint {
	
	private static Logger log = LoggerFactory.getLogger(CountGreaterThanConstraint.class);
	
	private int count = Integer.MAX_VALUE;
	
	@Override public void setParameter(String parameter) {
		try{
			count = Integer.parseInt(parameter);
		}catch(Exception e){
			log.error("Can't parse parameter: "+parameter, e);
		}
	}

	@Override public boolean isMet() {
		
		SecurityObject subject = AccessContext.getContext().getSubject();
		String sCount = subject.getAttributeValue("count");
		if (sCount==null)
			return false;
		int countToCheck = 0;
		try{
			countToCheck = Integer.parseInt(sCount);
		}catch(NumberFormatException e){
			log.error("isMet.parseInt("+sCount+")", e);
		}
		
		return count < countToCheck;
	}
	
	@Override public String toString(){
		return "Greater than > "+count;
	}

}