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/*
 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/

package org.jbpm.simulation.impl.ht;

import java.util.Calendar;

import org.joda.time.Interval;

public class Range implements Comparable {

    private int start;
    private int end;
    
    private Calendar localCalendar;
    private Interval interval;
    private AllocatedResources resources;
    
    public Range(int start, int end, int resourcePoolSize) {
        this.start = start;
        this.end = end;
        this.resources = new AllocatedResources(resourcePoolSize);
        this.localCalendar = Calendar.getInstance();
    }
    
    public boolean contains(long time) {
        localCalendar.setTimeInMillis(time);
        localCalendar.set(Calendar.HOUR_OF_DAY, start);
        localCalendar.set(Calendar.MINUTE, 0);
        long startInstant = localCalendar.getTimeInMillis();
        
        localCalendar.set(Calendar.HOUR_OF_DAY, end);
        long endInstant = localCalendar.getTimeInMillis();
        interval = new Interval(startInstant, endInstant);
        
        return interval.contains(time);
        
    }
    
    public AllocatedWork allocate(long startTime, long duration) {
        AllocatedWork allocatedWork = this.resources.allocate(startTime, duration, interval.getEndMillis());
        
        return allocatedWork;
    }
    
    public Interval getInterval() {
        return this.interval;
    }
    
    public int compareTo(Range o) {
        
        return this.end - o.start;
    }

}