pumpoffwhenfloorswarmenough.java

drools 一个开放源码的规则引擎

package org.drools.spring.examples.jiahvac.control.rules;

/*
 * Copyright 2005 (C) The Werken Company. All Rights Reserved.
 *
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided that the
 * following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright statements and
 * notices. Redistributions must also contain a copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. The name "drools" must not be used to endorse or promote products derived
 * from this Software without prior written permission of The Werken Company.
 * For written permission, please contact [e-mail].
 *
 * 4. Products derived from this Software may not be called "drools" nor may
 * "drools" appear in their names without prior written permission of The Werken
 * Company. "drools" is a registered trademark of The Werken Company.
 *
 * 5. Due credit should be given to The Werken Company.
 * (http://drools.werken.com/).
 *
 * THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE WERKEN COMPANY OR ITS CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 */



import static org.drools.spring.examples.jiahvac.model.HeatPump.State.*;

import org.drools.spring.examples.jiahvac.model.Floor;
import org.drools.spring.examples.jiahvac.model.HeatPump;
import org.drools.spring.examples.jiahvac.model.TempuratureControl;
import org.drools.spring.examples.jiahvac.model.Thermometer;
import org.drools.spring.metadata.annotation.java.*;

@Rule
public class PumpOffWhenFloorsWarmEnough {
    
    private TempuratureControl control;
    
    public void setControl(TempuratureControl control) {
        this.control = control;
    }
    
    @Condition
    public boolean isPumpHeating(HeatPump pump) {
        return pump.getState() == HEATING;
     }

    @Condition
    public boolean isPumpServicingFloor(HeatPump pump, Thermometer thermometer) {
        return thermometer.getFloor().getHeatPump() == pump;
    }

    @Condition
    public boolean isAllFloorsWarmEnough(HeatPump pump, Thermometer thermometer) {
        if (!control.isWarmEnough(thermometer.getReading())) {
            return false;
        }
        for (Floor floor : pump.getFloors()) {
            if (floor == thermometer.getFloor()) {
                continue;
            }
            if (!control.isWarmEnough(floor.getThermometer().getReading())) {
                return false;
            }
        }
        return true;
     }

    @Consequence
    public void consequence(HeatPump pump) {
        pump.setState(OFF);
        System.out.println("PumpOffWhenFloorsWarmEnough: " + pump);
    }
}