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Miner.java
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Miner.java
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import java.util.Random;
import java.util.concurrent.locks.*;
import java.util.stream.DoubleStream;
public class Miner extends Builder implements Runnable{
private int ID;
private int interval;
private int storageCapacity;
private int oreType;
private int maxOresCanBeMined;
private int oresInStorage;
private int producedOres;
private boolean isActive;
public Miner(int id, int interval, int storageCapacity, int oreType, int maxOresCanBeMined) {
this.ID = id;
this.interval = interval;
this.storageCapacity = storageCapacity;
this.oreType = oreType;
this.maxOresCanBeMined = maxOresCanBeMined;
this.oresInStorage = 0;
this.producedOres = 0;
this.isActive = true;
}
public int getID() {
return ID;
}
public void setID(int ID) {
this.ID = ID;
}
public int getInterval() {
return interval;
}
public void setInterval(int interval) {
this.interval = interval;
}
public int getStorageCapacity() {
return storageCapacity;
}
public void setStorageCapacity(int storageCapacity) {
this.storageCapacity = storageCapacity;
}
public int getOreType() {
return oreType;
}
public void setOreType(int oreType) {
this.oreType = oreType;
}
public int getMaxOresCanBeMined() {
return maxOresCanBeMined;
}
public void setMaxOresCanBeMined(int maxOresCanBeMined) {
this.maxOresCanBeMined = maxOresCanBeMined;
}
@Override
public void run() {
HW2Logger.getInstance().Log(ID, 0, 0, 0, Action.MINER_CREATED);
this.isActive = true;
while (producedOres < maxOresCanBeMined) {
this.WaitCanProduce();
HW2Logger.getInstance().Log(ID, 0, 0, 0, Action.MINER_STARTED);
this.SleepForMining();
this.oresInStorage++;
this.producedOres++;
HW2Logger.getInstance().Log(ID, 0, 0, 0, Action.MINER_FINISHED);
this.OreProduced();
}
this.MinerStopped();
HW2Logger.getInstance().Log(ID, 0, 0, 0, Action.MINER_STOPPED);
}
public void WaitCanProduce() {
while (this.isFull()) {//or if?
this.getLock().lock();
try {
this.getAnItemTakenCondition().await();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
this.getLock().unlock();
}
}
}
public void SleepForMining() {
//Sleep a value in range of Interval ± (Interval × 0.01) milliseconds for mining
//duration
Random random = new Random(System.currentTimeMillis());
DoubleStream stream;
stream = random.doubles(1, interval - interval * 0.01, interval + interval * 0.01);
try {
Thread.sleep((long) stream.findFirst().getAsDouble());
} catch (InterruptedException e) {
e.printStackTrace();
}
}
public void OreProduced() {
this.getLock().lock();
this.getAnItemProduced().signalAll();
this.getLock().unlock();
}
public void MinerStopped() {
this.getLock().lock();
this.isActive = false;
this.getAnItemProduced().signalAll(); //for those transporters waiting the next load.
this.getLock().unlock();
}
public boolean DecreaseOre() {
this.getLock().lock();
if(this.oresInStorage > 0) {
this.oresInStorage--;
this.getLock().unlock();
return true;
}
else{
this.getLock().unlock();
return false;
}
}
@Override
public int OutStorageCount() {
return this.oresInStorage;
}
@Override
public int InStorageCount() { //should not be used
return 0; //does not have ingoing storage. not a subject of any WaitUnload.
}
@Override
public int OutStorageCapacity() {
return this.storageCapacity;
}
@Override
public int InStorageCapacity() {
return 0; //no incoming storage.
}
@Override
public boolean isEmpty() { //
return (oresInStorage==0);
}
@Override
public boolean isFull() { // subject of waitCanProduce.
return oresInStorage == storageCapacity;
}
@Override
public boolean isActive() {
return this.isActive;
}
@Override
public boolean decreaseItem() {
return this.DecreaseOre();
}
@Override
public boolean increaseItem() { // miner has no incoming storage, hence cannot increase it.
return false;
}
@Override
public Type typeOfBuilder() {
return Type.MINER;
}
}