Merge branch 'feature/#1' into develop

[update feature] chapter 01 sample code

build.gradle

@@ -5,12 +5,15 @@ plugins {
 group 'study'
 version '1.0.0'
 
-sourceCompatibility = 1.8
+sourceCompatibility = 11
 
 repositories {
     mavenCentral()
 }
 
 dependencies {
     testCompile group: 'junit', name: 'junit', version: '4.12'
+
+    compileOnly 'org.projectlombok:lombok:1.18.10'
+    annotationProcessor 'org.projectlombok:lombok:1.18.10'
 }

src/main/java/study/book/object/ticket/model/Audience.java

@@ -0,0 +1,18 @@
+package study.book.object.ticket.model;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+/**
+ * 관람객 Model
+ */
+@Getter @Setter
+@ToString
+public class Audience {
+    private Bag bag;
+
+    public Audience(Bag bag) {
+        this.bag = bag;
+    }
+}

src/main/java/study/book/object/ticket/model/Bag.java

@@ -0,0 +1,50 @@
+package study.book.object.ticket.model;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+@Getter @Setter
+@ToString
+public class Bag {
+    private Long amount;
+    private Invitation invitation;
+    private Ticket ticket;
+
+    /**
+     * Bag Instance 의 상태는
+     * 현금과 초대장을 함께 보관하거나, 초대장 없이 보관하는 두가지
+     * 이 두가지를 인스턴스 생성 시점에 강제한다.
+     * @param amount 현금 보유량
+     */
+    public Bag(long amount) {
+        this(null, amount);
+    }
+
+    /**
+     * Bag 생성시 초대장과 현금보유량으로 생성규정
+     *
+     * @param invitation 초대장
+     * @param amount 현금 보유량
+     */
+    public Bag(Invitation invitation, long amount) {
+        this.invitation = invitation;
+        this.amount = amount;
+    }
+
+    public boolean hasInvitation() {
+        return invitation != null;
+    }
+
+    public boolean hasTicket() {
+        return ticket !=null;
+    }
+
+    public void minusAmount(Long amount) {
+        this.amount -= amount;
+    }
+
+    public void plusAmount(Long amount) {
+        this.amount += amount;
+    }
+}

src/main/java/study/book/object/ticket/model/Invitation.java

@@ -1,4 +1,13 @@
 package study.book.object.ticket.model;
 
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import java.time.LocalDateTime;
+
+@Getter @Setter
+@ToString
 public class Invitation {
+    private LocalDateTime when;
 }

src/main/java/study/book/object/ticket/model/Ticket.java

@@ -1,4 +1,11 @@
 package study.book.object.ticket.model;
 
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+@Getter @Setter
+@ToString
 public class Ticket {
+    private Long fee;
 }

src/main/java/study/book/object/ticket/model/TicketOffice.java

@@ -0,0 +1,35 @@
+package study.book.object.ticket.model;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * 매표소 Model
+ */
+@ToString
+public class TicketOffice {
+    private Long amount;
+    private List<Ticket> tickets = new ArrayList<>();
+
+    public TicketOffice(Long amount, Ticket... tickets) {
+        this.amount = amount;
+        this.tickets.addAll(Arrays.asList(tickets));
+    }
+
+    public Ticket getTicket() {
+        return tickets.remove(0);
+    }
+
+    public void minusAmount(Long amount) {
+        this.amount -= amount;
+    }
+
+    public void plusAmount(Long amount) {
+        this.amount += amount;
+    }
+}

src/main/java/study/book/object/ticket/model/TicketSeller.java

@@ -0,0 +1,15 @@
+package study.book.object.ticket.model;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+@Getter @Setter
+@ToString
+public class TicketSeller {
+    private TicketOffice ticketOffice;
+
+    public TicketSeller(TicketOffice ticketOffice) {
+        this.ticketOffice = ticketOffice;
+    }
+}

src/main/java/study/book/object/ticket/service/Theater.java

@@ -0,0 +1,25 @@
+package study.book.object.ticket.service;
+
+import study.book.object.ticket.model.Audience;
+import study.book.object.ticket.model.Ticket;
+import study.book.object.ticket.model.TicketSeller;
+
+public class Theater {
+    private TicketSeller ticketSeller;
+
+    public Theater(TicketSeller ticketSeller) {
+        this.ticketSeller = ticketSeller;
+    }
+
+    public void enter(Audience audience) {
+        if(audience.getBag().hasInvitation()) {
+            Ticket ticket = ticketSeller.getTicketOffice().getTicket();
+            audience.getBag().setTicket(ticket);
+        } else {
+            Ticket ticket = ticketSeller.getTicketOffice().getTicket();
+            audience.getBag().minusAmount(ticket.getFee());
+            ticketSeller.getTicketOffice().plusAmount(ticket.getFee());
+            audience.getBag().setTicket(ticket);
+        }
+    }
+}