/** 显示空车位数量 */
public void displaySpaceNum() {
System.out.println("## 车位显示屏 ##");
for (Park park : parkList) {
System.out.println(
"## "
+ park.getParkName()
+ "共有车位："
+ park.getSpaceTotal()
+ "个，当前空车位"
+ park.getSpaceNum()
+ "个");
}
}
/** 分配停车场 */
private Park distributePark() {
Park park = null;
Park parkTmp = null;
int spaceNumMax = 0;
for (int i = 0; i < this.parkList.size(); i++) {
parkTmp = this.parkList.get(i);
if (parkTmp.hasSpace() && parkTmp.getSpaceNum() > spaceNumMax) {
park = parkTmp;
spaceNumMax = parkTmp.getSpaceNum();
}
}
return park;
}
private boolean isAllParkEmpty() {
boolean b = true;
int spaceTotal = 0;
int spaceNum = 0;
for (Park parkTmp : parkList) {
spaceTotal = parkTmp.getSpaceTotal();
spaceNum = parkTmp.getSpaceNum();
if (spaceNum != spaceTotal) {
b = false;
}
}
return b;
}
/** 取车 */
public boolean drawOut(ParkCard parkCard, Car car) throws Exception {
boolean b = false;
if (parkCard == null) {
System.out.println("无效的停车卡！");
return false;
}
if (car == null) {
System.out.println("车辆信息无效！");
return false;
}
if (this.isAllParkEmpty()) {
System.out.println("非法的取车请求：当前所有停车场均无车！");
return false;
}
String cardId = parkCard.getCardId();
ParkCard readyCard = this.parkCardMap.get(cardId);
if (readyCard == null) {
System.out.println("无效的停车卡！");
return false;
}
Car readyCar = readyCard.getCar();
if (!car.getNumber().equalsIgnoreCase(readyCar.getNumber())) {
System.out.println("车卡不一致，不允许取车！");
return false;
}
Park readyPark = readyCard.getPark();
this.parkCardMap.remove(cardId);
int parkSpaceNum = readyPark.getSpaceNum();
readyPark.setSpaceNum(parkSpaceNum + 1);
System.out.println("车牌号为：" + car.getNumber() + "已成功从[" + readyPark.getParkName() + "]取出！");
return b;
}
/**
* 停车
*
* @param car
* @return
* @throws Exception
*/
public ParkCard park(Car car) throws Exception {
ParkCard parkCard = null;
// 分配停车场
Park park = this.distributePark();
if (park == null) {
System.out.println("对不起，所有停车场都没有空闲停车位！");
} else {
// 发卡停车
parkCard = new ParkCard(park, car);
this.parkCardMap.put(parkCard.getCardId(), parkCard);
int parkSpaceNum = park.getSpaceNum();
park.setSpaceNum(parkSpaceNum - 1);
System.out.println("车牌号为：" + car.getNumber() + "已成功停车至[" + park.getParkName() + "]！");
this.displaySpaceNum();
}
return parkCard;
}