adapter pattern

rafiulgits · rafiulgits · commit 112903ba106d · 2019-05-05T22:41:27.000+06:00
designed with computer driver application.
diff --git a/design-pattern/adapter/Driver.java b/design-pattern/adapter/Driver.java
@@ -0,0 +1,9 @@
+package sdp.adapter;
+
+/**
+ *
+ * @author rafiul islam
+ */
+public interface Driver {
+    public void engine(String support);
+}
diff --git a/design-pattern/adapter/Main.java b/design-pattern/adapter/Main.java
@@ -0,0 +1,17 @@
+package sdp.adapter;
+
+/**
+ *
+ * @author rafiul islam
+ */
+public class Main {
+    public static void main(String[] args) {
+        Windows pc = new Windows();
+        pc.execute("exe");
+        pc.execute("py");
+        
+        Python python = new Python();
+        pc.install("py", python);
+        pc.execute("py");
+    }
+}
diff --git a/design-pattern/adapter/OS.java b/design-pattern/adapter/OS.java
@@ -0,0 +1,10 @@
+package sdp.adapter;
+
+/**
+ *
+ * @author rafiul islam
+ */
+public interface OS {
+    public void install(String type, Driver driver);
+    public void execute(String type);
+}
diff --git a/design-pattern/adapter/Python.java b/design-pattern/adapter/Python.java
@@ -0,0 +1,13 @@
+package sdp.adapter;
+
+/**
+ *
+ * @author rafiul islam
+ */
+public class Python implements Driver{
+    
+    @Override
+    public void engine(String type){
+        System.out.println("Python interpreter engine: "+type);
+    }
+}
diff --git a/design-pattern/adapter/Windows.java b/design-pattern/adapter/Windows.java
@@ -0,0 +1,37 @@
+package sdp.adapter;
+
+import java.util.HashMap;
+
+/**
+ *
+ * @author rafiul islam
+ */
+public class Windows implements OS{
+    private HashMap installedDrivers;
+    
+    public Windows(){
+        installedDrivers = new HashMap();
+    }
+    
+    @Override
+    public void install(String type, Driver driver){
+        installedDrivers.put(type, driver);
+    }
+    
+    @Override
+    public void execute(String type){
+        type = type.toLowerCase();
+        if(type == "exe" || type == "msi"){
+            System.out.println("Windows default execution engine: "+type);
+        }
+        else{
+            Driver driver = (Driver)installedDrivers.get(type);
+            if(driver == null){
+                System.out.println("No supported driver found");
+            }
+            else{
+                driver.engine(type);
+            }
+        }
+    }
+}
