+ Creating Database connection

+ POJOs for:
- Address
- Author
- Book
- Category
- Customer
- Publisher

Signed-off-by: Johannes Theiner <j.theiner@live.de>

.gitignore

@@ -1,3 +1,4 @@
 *.iml
 /target
 .idea
+config.json

config.json.example

@@ -0,0 +1,9 @@
+{
+  "database": {
+    "hostname": "localhost",
+    "port": 3306,
+    "database": "itech",
+    "username": "itech",
+    "password": "123456"
+  }
+}

src/main/java/de/hsel/itech/config/Configuration.java

@@ -0,0 +1,39 @@
+package de.hsel.itech.config;
+
+import com.google.gson.Gson;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.ToString;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+
+/**
+ * @author Johannes Theiner
+ * @version 0.1
+ * @since 0.1
+ */
+
+@Getter
+@ToString
+@EqualsAndHashCode
+public class Configuration {
+
+    private Database database;
+
+
+    public static Configuration get(String fileName) {
+        Gson gson = new Gson();
+
+        FileReader reader = null;
+        try {
+            reader = new FileReader(new File(fileName));
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        }
+        assert reader != null;
+        return gson.fromJson(reader, Configuration.class);
+    }
+
+}

src/main/java/de/hsel/itech/config/Database.java

@@ -0,0 +1,23 @@
+package de.hsel.itech.config;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.ToString;
+
+/**
+ * @author Johannes Theiner
+ * @version 0.1
+ * @since 0.1
+ */
+
+@Getter
+@ToString
+@EqualsAndHashCode
+public class Database {
+
+    String hostname;
+    int port;
+    String database;
+    String username;
+    String password;
+}

src/main/java/de/hsel/itech/db/Database.java

@@ -0,0 +1,42 @@
+package de.hsel.itech.db;
+
+import de.hsel.itech.config.Configuration;
+import org.jetbrains.annotations.Nullable;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+
+/**
+ * @author Johannes Theiner
+ * @version 0.1
+ * @since 0.1
+ */
+public class Database {
+
+    public Database() {
+        try {
+            Class.forName("com.mariadb.jdbc.Driver");
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+
+    }
+
+    @Nullable
+    private Connection getConnection() {
+        Configuration config = Configuration.get("config.json");
+        try {
+            return DriverManager.getConnection("jdbc:mariadb://" + config.getDatabase().getHostname() + ":" + config.getDatabase().getPort() + "/" + config.getDatabase().getDatabase(), config.getDatabase().getUsername(), config.getDatabase().getPassword());
+
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+
+
+
+
+}

src/main/java/de/hsel/itech/db/pojo/Address.java

@@ -0,0 +1,23 @@
+package de.hsel.itech.db.pojo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+/**
+ * @author Johannes Theiner
+ * @version 0.1
+ * @since 0.1
+ */
+
+@Data
+@AllArgsConstructor
+public class Address {
+
+    private Customer customer;
+    private long id;
+    private String name;
+    private String street;
+    private String number;
+    private int zipCode;
+    private String city;
+}

src/main/java/de/hsel/itech/db/pojo/Author.java

@@ -0,0 +1,19 @@
+package de.hsel.itech.db.pojo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+/**
+ * @author Johannes Theiner
+ * @version 0.1
+ * @since 0.1
+ */
+
+@Data
+@AllArgsConstructor
+public class Author {
+
+    private long id;
+    private String name;
+
+}

src/main/java/de/hsel/itech/db/pojo/Book.java

@@ -0,0 +1,34 @@
+package de.hsel.itech.db.pojo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+import java.time.Year;
+
+/**
+ * @author Johannes Theiner
+ * @version 0.1
+ * @since 0.1
+ */
+
+@Data
+@AllArgsConstructor
+public class Book {
+
+    private int isbn;
+    private Author author;
+    private Publisher publisher;
+    private Category category;
+    private String title;
+    private Year year;
+
+    /**
+     * saved in cents
+     */
+    private int price;
+    private String description;
+    private String image;
+
+
+
+}

src/main/java/de/hsel/itech/db/pojo/Category.java

@@ -0,0 +1,19 @@
+package de.hsel.itech.db.pojo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+/**
+ * @author Johannes Theiner
+ * @version 0.1
+ * @since 0.1
+ */
+
+@Data
+@AllArgsConstructor
+public class Category {
+
+    private int id;
+    private String name;
+    private String image;
+}

src/main/java/de/hsel/itech/db/pojo/Customer.java

@@ -0,0 +1,21 @@
+package de.hsel.itech.db.pojo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+/**
+ * @author Johannes Theiner
+ * @version 0.1
+ * @since 0.1
+ */
+
+@Data
+@AllArgsConstructor
+public class Customer {
+
+    private long id;
+    private String email;
+    private String name;
+    private String password;
+    private boolean admin;
+}

src/main/java/de/hsel/itech/db/pojo/Publisher.java

@@ -0,0 +1,18 @@
+package de.hsel.itech.db.pojo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+/**
+ * @author Johannes Theiner
+ * @version 0.1
+ * @since 0.1
+ */
+
+@Data
+@AllArgsConstructor
+public class Publisher {
+
+    private long id;
+    private String name;
+}