package org.drools.spring.examples.jiahvac.control;
/*
* 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 bob@werken.com.
*
* 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 java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.drools.FactException;
import org.drools.WorkingMemory;
import org.drools.spring.examples.jiahvac.sim.Simulator;
import org.drools.spring.examples.jiahvac.sim.SimulatorGUI;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
public class ExecutorFactoryBean implements InitializingBean, FactoryBean {
private WorkingMemory workingMemory;
private long simulatorPeriod = Long.MIN_VALUE;
private TimeUnit simulatorPeriodUnit;
private Simulator simulator;
private SimulatorGUI simulatorGUI;
private ScheduledExecutorService executor;
public void setWorkingMemory(WorkingMemory workingMemory) {
this.workingMemory = workingMemory;
}
public void setSimulatorPeriod(long simulatorPeriodUnit) {
this.simulatorPeriod = simulatorPeriodUnit;
}
public void setSimulatorPeriodUnit(TimeUnit simulatorTimeUnit) {
this.simulatorPeriodUnit = simulatorTimeUnit;
}
public void setSimulator(Simulator simulator) {
this.simulator = simulator;
}
public void setSimulatorGUI(SimulatorGUI simulatorGUI) {
this.simulatorGUI = simulatorGUI;
}
public void afterPropertiesSet() throws Exception {
if (workingMemory == null) {
throw new IllegalArgumentException("WorkingMemory not set");
}
if (simulator == null) {
throw new IllegalArgumentException("Simulator not set");
}
if (simulatorPeriod == Long.MIN_VALUE) {
throw new IllegalArgumentException("SimulatorPeriod not set");
}
if (simulatorPeriodUnit == null) {
throw new IllegalArgumentException("SimulatorPeriodUnit not set");
}
if (simulatorGUI == null) {
throw new IllegalArgumentException("SimulatorGUI not set");
}
}
public Object getObject() throws Exception {
if (executor == null) {
executor = new ScheduledThreadPoolExecutor(1);
executor.scheduleAtFixedRate(new Runnable() {
public void run() {
simulator.run();
try {
workingMemory.fireAllRules();
} catch (FactException e) {
throw new RuntimeException(e);
}
}
}, 0, simulatorPeriod, simulatorPeriodUnit);
executor.scheduleAtFixedRate(simulatorGUI, 0, 1, TimeUnit.SECONDS);
}
return executor;
}
public Class getObjectType() {
return ScheduledExecutorService.class;
}
public boolean isSingleton() {
return true;
}
}