feat: initial commit

.gitignore

+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.ear
+*.zip
+*.tar.gz
+*.rar
+*.db
+rebel.xml
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+#Directories
+target/
+build/
+tmp/
+bin/
+logs/
+GitDirectory/
+
+
+#Windows
+Thumbs.db
+Desktop.ini
+
+#Eclipse
+*.pydevproject
+.project
+.metadata
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.classpath
+.settings/
+.loadpath
+
+#IntelliJ IDEA
+*.iml
+\.idea/
+
+#Sonar-Scanner
+\.scannerwork/
+
+# Thumbnails
+._*
+
+*# Testing environment specific
+derby.log

common/pom.xml

+<?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>
+  <parent>
+    <artifactId>vis-java</artifactId>
+    <groupId>cz.jezek</groupId>
+    <version>0.0.1-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>common</artifactId>
+
+  <name>common</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+  </properties>
+
+  <dependencies>
+  </dependencies>
+
+</project>

common/src/main/java/cz/common/Person.java

+package cz.common;
+
+public class Person {
+	private String name;
+	private long id;
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public long getId() {
+		return id;
+	}
+
+	public void setId(long id) {
+		this.id = id;
+	}
+
+	public Person(long id, String name) {
+		super();
+		this.id = id;
+		this.name = name;
+	}
+
+	@Override
+	public String toString() {
+		return "Person [id=" + id + ", name=" + name + "]";
+	}
+
+}

common/src/main/java/module-info.java

+module common {
+	exports cz.common;
+}
\ No newline at end of file

common/src/test/java/cz/common/PersonTest.java

+package cz.common;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class PersonTest {
+	/**
+	 * Rigorous Test :-)
+	 */
+	@Test
+	public void toStringTest() {
+		assertNotNull(new Person(1, "Test").toString());
+	}
+}

dataLayerDB/pom.xml

+<?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>
+  <parent>
+    <artifactId>vis-java</artifactId>
+    <groupId>cz.jezek</groupId>
+    <version>0.0.1-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>dataLayerDB</artifactId>
+
+  <name>dataLayerDB</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+  </properties>
+
+  <dependencies>
+    <dependency>
+    	<groupId>cz.jezek</groupId>
+    	<artifactId>dataLayerInterfaces</artifactId>
+    	<version>0.0.1-SNAPSHOT</version>
+    </dependency>
+  </dependencies>
+
+</project>

dataLayerDB/src/main/java/cz/dataLayerDB/PersonDM.java

+package cz.dataLayerDB;
+
+import java.util.Arrays;
+import java.util.List;
+
+import cz.common.Person;
+import cz.dataLayerInterfaces.PersonDataMapperInterface;
+
+public class PersonDM implements PersonDataMapperInterface{
+
+	@Override
+	public List<Person> getAllPersons() {
+		return Arrays.asList(new Person(1, "SQL Modul"));
+	}
+
+}

dataLayerDB/src/main/java/module-info.java

+import cz.dataLayerDB.PersonDM;
+import cz.dataLayerInterfaces.PersonDataMapperInterface;
+
+module dataLayerDB {
+	exports cz.dataLayerDB;
+
+	requires transitive common;
+	requires dataLayerInterfaces;
+	provides PersonDataMapperInterface with PersonDM;
+}
\ No newline at end of file

dataLayerDB/src/test/java/cz/dataLayerDB/PersonDMTest.java

+package cz.dataLayerDB;
+
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class PersonDMTest 
+{
+    /**
+     * Rigorous Test :-)
+     */
+    @Test
+    public void getAllPersonsTest()
+    {
+        assertFalse(new PersonDM().getAllPersons().isEmpty());
+    }
+}

dataLayerInterfaces/pom.xml

+<?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>
+	<parent>
+		<artifactId>vis-java</artifactId>
+		<groupId>cz.jezek</groupId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+
+	<artifactId>dataLayerInterfaces</artifactId>
+
+	<name>dataLayerInterfaces</name>
+	<!-- FIXME change it to the project's website -->
+	<url>http://www.example.com</url>
+
+	<properties>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>cz.jezek</groupId>
+			<artifactId>common</artifactId>
+			<version>0.0.1-SNAPSHOT</version>
+		</dependency>
+		<dependency>
+			<groupId>org.reflections</groupId>
+			<artifactId>reflections</artifactId>
+			<version>0.9.12</version>
+		</dependency>
+	</dependencies>
+
+</project>

dataLayerInterfaces/src/main/java/cz/dataLayerInterfaces/PersonDataMapperInterface.java

+package cz.dataLayerInterfaces;
+
+import java.util.List;
+import java.util.ServiceLoader;
+
+import org.reflections.Reflections;
+import org.reflections.scanners.SubTypesScanner;
+
+import cz.common.Person;
+
+public interface PersonDataMapperInterface {
+
+	public List<Person> getAllPersons();
+
+	public static PersonDataMapperInterface newInstance() {
+		ServiceLoader<PersonDataMapperInterface> service = ServiceLoader.load(PersonDataMapperInterface.class);
+		for (PersonDataMapperInterface personDataMapperInterface : service) {
+			System.out.println("Implementation of PersonDataMapperInterface found: "
+					+ personDataMapperInterface.getClass().getCanonicalName());
+		}
+		for (PersonDataMapperInterface inter : service) {
+			return inter;
+		}
+		/*
+		 * try find implementation using reflection, due running without module support
+		 * to run spring
+		 */
+		return findImplementationByReflection();
+
+	}
+
+	public static PersonDataMapperInterface findImplementationByReflection() {
+		String packageNameForSearch = "cz";
+		Reflections reflections = new Reflections(packageNameForSearch, new SubTypesScanner());
+		Class<?> clazz = reflections.getSubTypesOf(PersonDataMapperInterface.class).stream().findAny().orElse(null);
+		if (clazz == null) {
+			return null;
+		}
+		try {
+			return (PersonDataMapperInterface) clazz.getConstructor(null).newInstance(null);
+		} catch (Exception e) {
+			System.out.println(e.getMessage());
+		}
+		return null;
+	}
+
+}

dataLayerInterfaces/src/main/java/module-info.java

+import cz.dataLayerInterfaces.PersonDataMapperInterface;
+
+module dataLayerInterfaces {
+	exports cz.dataLayerInterfaces;
+
+	requires transitive common;
+	requires reflections;
+	uses PersonDataMapperInterface;
+}
\ No newline at end of file

dataLayerOther/pom.xml

+<?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>
+	<parent>
+		<artifactId>vis-java</artifactId>
+		<groupId>cz.jezek</groupId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+
+	<artifactId>dataLayerOther</artifactId>
+
+	<name>dataLayerOther</name>
+	<!-- FIXME change it to the project's website -->
+	<url>http://www.example.com</url>
+
+	<properties>
+	</properties>
+
+	<dependencies>
+	<dependency>
+		<groupId>cz.jezek</groupId>
+		<artifactId>dataLayerInterfaces</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+	</dependency>
+	</dependencies>
+
+</project>

dataLayerOther/src/main/java/cz/dataLayerOther/PersonOtherDM.java

+package cz.dataLayerOther;
+
+import java.util.Arrays;
+import java.util.List;
+
+import cz.common.Person;
+import cz.dataLayerInterfaces.PersonDataMapperInterface;
+
+public class PersonOtherDM implements PersonDataMapperInterface{
+
+	@Override
+	public List<Person> getAllPersons() {
+		return Arrays.asList(new Person(1, "Other storage Modul"));
+	}
+
+}

dataLayerOther/src/main/java/module-info.java

+import cz.dataLayerInterfaces.PersonDataMapperInterface;
+import cz.dataLayerOther.PersonOtherDM;
+
+module dataLayerOther {
+	exports cz.dataLayerOther;
+
+	requires transitive common;
+	requires dataLayerInterfaces;
+	provides PersonDataMapperInterface with PersonOtherDM;
+}
\ No newline at end of file

dataLayerOther/src/test/java/cz/dataLayerOther/PersonOtherDMTest.java

+package cz.dataLayerOther;
+
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class PersonOtherDMTest 
+{
+    /**
+     * Rigorous Test :-)
+     */
+    @Test
+    public void getAllPersonsTest()
+    {
+        assertFalse(new PersonOtherDM().getAllPersons().isEmpty());
+    }
+}

domainLayer/pom.xml

+<?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>
+	<parent>
+		<artifactId>vis-java</artifactId>
+		<groupId>cz.jezek</groupId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+
+	<artifactId>domainLayer</artifactId>
+
+	<name>domainLayer</name>
+	<!-- FIXME change it to the project's website -->
+	<url>http://www.example.com</url>
+
+	<properties>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>cz.jezek</groupId>
+			<artifactId>dataLayerInterfaces</artifactId>
+			<version>0.0.1-SNAPSHOT</version>
+		</dependency>
+	</dependencies>
+
+</project>

domainLayer/src/main/java/cz/domainLayer/PersonTransactionScript.java

+package cz.domainLayer;
+
+import java.util.List;
+
+import cz.common.Person;
+import cz.dataLayerInterfaces.PersonDataMapperInterface;
+
+public class PersonTransactionScript {
+
+	private PersonDataMapperInterface personDM;
+	
+	
+	public PersonTransactionScript() {
+		personDM = PersonDataMapperInterface.newInstance();
+	}
+
+
+	public List<Person> getAllPersons(){
+		System.out.println("personDM="+personDM);
+		/*very complicated domain logic :-) */
+		return personDM.getAllPersons();
+	}
+}

domainLayer/src/main/java/module-info.java

+module domainLayer {
+	exports cz.domainLayer;
+
+	requires transitive common ;
+	requires dataLayerInterfaces;
+}
\ No newline at end of file

domainLayer/src/test/java/cz/domainLayer/PersonTransactionScriptTest.java

+package cz.domainLayer;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class PersonTransactionScriptTest {
+	/**
+	 * Rigorous Test :-)
+	 */
+	@Test
+	public void getAllPersonsTest() {
+		assertTrue(true);
+	}
+}