PatternAdapter: Initial commit

2022-05-07 23:26:05 +02:00
parent e69bd5f013
commit c939aacf1b
4 changed files with 135 additions and 0 deletions
--- a/Development/PatternAdapter/src/Adapter.java
+++ b/Development/PatternAdapter/src/Adapter.java
@@ -0,0 +1,94 @@
+interface ILightningPhone {
+    void recharge();
+    void useLightning();
+}
+
+interface IMicroUsbPhone {
+    void recharge();
+    void useMicroUsb();
+}
+
+class Iphone implements ILightningPhone {
+    private boolean connector;
+
+    @Override
+    public void useLightning() {
+        connector = true;
+        System.out.println("Lightning connected");
+    }
+
+    @Override
+    public void recharge() {
+        if (connector) {
+            System.out.println("Recharge started");
+            System.out.println("Recharge finished");
+        } else {
+            System.out.println("Connect Lightning first");
+        }
+    }
+}
+
+class Android implements IMicroUsbPhone {
+    private boolean connector;
+
+    @Override
+    public void useMicroUsb() {
+        connector = true;
+        System.out.println("MicroUsb connected");
+    }
+
+    @Override
+    public void recharge() {
+        if (connector) {
+            System.out.println("Recharge started");
+            System.out.println("Recharge finished");
+        } else {
+            System.out.println("Connect MicroUsb first");
+        }
+    }
+}
+/* exposing the target interface while wrapping source object */
+class LightningToMicroUsbAdapter implements IMicroUsbPhone {
+    private final ILightningPhone lightningPhone;
+
+    public LightningToMicroUsbAdapter(ILightningPhone lightningPhone) {
+        this.lightningPhone = lightningPhone;
+    }
+
+    @Override
+    public void useMicroUsb() {
+        System.out.println("MicroUsb connected");
+        lightningPhone.useLightning();
+    }
+
+    @Override
+    public void recharge() {
+        lightningPhone.recharge();
+    }
+}
+
+public class Adapter {
+    static void rechargeMicroUsbPhone(IMicroUsbPhone phone) {
+        phone.useMicroUsb();
+        phone.recharge();
+    }
+
+    static void rechargeLightningPhone(ILightningPhone phone) {
+        phone.useLightning();
+        phone.recharge();
+    }
+
+    public static void main(String[] args) {
+        Android android = new Android();
+        Iphone iPhone = new Iphone();
+
+        System.out.println("Recharging android with MicroUsb");
+        rechargeMicroUsbPhone(android);
+
+        System.out.println("Recharging iPhone with Lightning");
+        rechargeLightningPhone(iPhone);
+
+        System.out.println("Recharging iPhone with MicroUsb");
+        rechargeMicroUsbPhone(new LightningToMicroUsbAdapter (iPhone));
+    }
+}