Topic 4 crud

ReadmeResistencia.md

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+Los tutores del Bootcamp de Resistencia son:
+
+"Dario Santiago Vallejos" <[email protected]>
+"Gabriel Zimmermann" <[email protected]>
+"Mauro Daniel Perez" <[email protected]>
+"Nicolas Pogulanik" <[email protected]>
+"Justo Vargas" <[email protected]>
+
+Site Manager
+
+"Juan Delfino" <[email protected]>,
+
+Champion
+
+"Claudia Romero" <[email protected]>,

exercise_1/Circle.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+/**
+ *
+ * @author roberta
+ */
+public class Circle {           // save as "Circle.java"
+    // private instance variable, not accessible from outside this class
+
+    private double radius;
+    private String color;
+
+    // 1st constructor, which sets both radius and color to default
+    public Circle() {
+        radius = 1.0;
+        color = "red";
+    }
+
+    // 2nd constructor with given radius, but color default
+    public Circle(double r) {
+        radius = r;
+        color = "red";
+    }
+
+    //1) 3rd constructor with the given radius and color
+    /**
+     * public Circle(double r, String c) {
+     *
+     * radius = r; color = c;
+     *
+     * }
+     */
+    // A public method for retrieving the radius
+    public double getRadius() {
+        return radius;
+    }
+
+    // A public method for computing the area of circle
+    public double getArea() {
+        return radius * radius * Math.PI;
+    }
+
+    //2) Getter for instance variable color 
+    public String getColor() {
+        return color;
+    }
+
+    /**
+     * 4)Setter for instance variable radius public void setRadius(double r) {
+     * radius = r; }
+     *
+     * //4)// Setter for instance variable color public void setColor(String c){
+     * color = c; }
+     */
+    //5) Using the special keyword "this"
+    public void setRadius(double radius) {
+        this.radius = radius;
+    }
+
+    public void setColor(String color) {
+        this.color = color;
+    }
+
+    //5) Using the special keyword "this"
+    public Circle(double radius, String color) {
+        this.color = color;
+        this.radius = radius;
+    }
+
+    public String toString() {
+        return "Circle: radius=" + radius + " color=" + color;
+    }
+
+}

exercise_1/TestCircle.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+/**
+ *
+ * @author roberta
+ */
+public class TestCircle {        // save as "TestCircle.java"
+
+    public static void main(String[] args) {
+      // Declare and allocate an instance of class Circle called c1
+        //  with default radius and color
+        Circle c1 = new Circle();
+        // Use the dot operator to invoke methods of instance c1.
+        System.out.println("The circle has radius of "
+                + c1.getRadius() + " and area of " + c1.getArea());
+
+      // Declare and allocate an instance of class circle called c2
+        //  with the given radius and default color
+        Circle c2 = new Circle();
+        // Use the dot operator to invoke methods of instance c2.
+        System.out.println("The circle has radius of "
+                + c2.getRadius() + " and area of " + c2.getArea());
+
+      // 3)  System.out.println(c1.radius); No, I can't because it has private access in Circle
+      //  c1.radius=5.0;
+
+      // 4)          
+        Circle c3 = new Circle();   // construct an instance of Circle
+        c3.setRadius(5.0);          // change radius
+        c3.setColor("green");           // change color   
+
+     /**5) toString   
+        Circle c6 = new Circle(5.0);
+        System.out.println(c1.toString());
+
+        Circle c5 = new Circle(1.2);
+        System.out.println(c5.toString());  // explicit call
+        System.out.println(c5);             // println() calls toString() implicitly, same as above
+        System.out.println("Operator '+' invokes toString() too: " + c2);  // '+' invokes toString() too */
+
+
+    }
+}

topic4-CRUD/userService/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.springframework</groupId>
+    <artifactId>gs-rest-service</artifactId>
+    <version>0.1.0</version>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>1.1.10.RELEASE</version>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.10</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+    <repositories>
+        <repository>
+            <id>spring-releases</id>
+            <url>https://repo.spring.io/libs-release</url>
+        </repository>
+    </repositories>
+    <pluginRepositories>
+        <pluginRepository>
+            <id>spring-releases</id>
+            <url>https://repo.spring.io/libs-release</url>
+        </pluginRepository>
+    </pluginRepositories>
+</project>

topic4-CRUD/userService/src/main/java/hello/Application.java

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+package hello;
+
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.SpringApplication;
+import org.springframework.context.annotation.ComponentScan;
+
+@ComponentScan
+@EnableAutoConfiguration
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}

topic4-CRUD/userService/src/main/java/hello/MySystemController.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package hello;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ *
+ * @author roberta
+ */
+public class MySystemController {
+
+    private List<User> userList = new ArrayList<User>();
+    private static MySystemController system;
+
+    public static MySystemController getInstance() {
+        if (system == null) {
+            system = new MySystemController();
+
+        }
+        return system;
+    }
+
+    private MySystemController() {
+    }
+
+    /**
+     * Creates a new user,if the user already exists displays an exception
+     *
+     * @param userName
+     * @param email
+     * @param password
+     * @param realName
+     * @throws UserAlreadyExistsException
+     */
+    public void createUser(String userName, String email, String password, String realName) throws UserAlreadyExistsException {
+
+        User user = new User(userName, email, password, realName);
+        if (!userList.contains(user)) {
+            userList.add(user);
+        } else {
+            throw new UserAlreadyExistsException("User already exists!");
+        }
+    }
+
+    /**
+     * Eliminate a user if exists and matches with the email inserted
+     *
+     * @param email
+     *
+     */
+    public void deleteUser(String email) {
+        Integer indexOf = null;
+        for (User u : userList) {
+            if (u.getEmail().equals(email)) {
+                indexOf = userList.indexOf(u);
+                break;
+            }
+        }
+        if (indexOf != null) {
+            userList.remove(userList.get(indexOf));
+        }
+    }
+
+    /**
+     * Search the user by userName and return a list with the values.
+     *
+     * @param userName
+     * @return
+     */
+    public List<User> readUser(String userName) {
+        List<User> resultList = new ArrayList<User>();
+        for (User u : userList) {
+            if (u.getUserName().contains(userName)) {
+                resultList.add(u);
+            }
+        }
+        return resultList;
+
+    }
+
+    /**
+     * Find a user by mail
+     *
+     * @param mail
+     * @return
+     */
+    public User retrieveUser(String mail) {
+
+        for (User u : userList) {
+            if (u.getEmail().equals(mail)) {
+                return u;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Search for the email, and update userName | password | realName
+     *
+     * @param userName
+     * @param password
+     * @param email
+     * @param realName
+     */
+    public void updateUser(String userName, String password, String email, String realName) {
+
+        for (User u : userList) {
+            if (u.getEmail().equals(email)) {
+                u.setPassword(password);
+                u.setRealName(realName);
+                u.setUserName(userName);
+                break;
+            }
+        }
+    }
+
+}

topic4-CRUD/userService/src/main/java/hello/Photo.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package hello;
+
+/**
+ *
+ * @author roberta
+ */
+public class Photo {
+
+}