From 31d9ebfa79646651fbbc146fe5fb70608aaf4d2a Mon Sep 17 00:00:00 2001
From: alejandrogervasio <alejandro.gervasio@gmail.com>
Date: Thu, 16 May 2019 20:01:02 -0300
Subject: [PATCH] Initial Commit

---
 .../consumermodule/pom.xml                    | 30 ++++++++++++++++
 .../baeldung/consumermodule/Application.java  | 13 +++++++
 .../src/main/java/module-info.java            |  3 ++
 .../decoupling-pattern1/pom.xml               | 35 +++++++++++++++++++
 .../decoupling-pattern1/servicemodule/pom.xml | 24 +++++++++++++
 .../servicemodule/external/TextService.java   |  7 ++++
 .../external/TextServiceFactory.java          | 14 ++++++++
 .../internal/LowercaseTextService.java        | 12 +++++++
 .../internal/UppercaseTextService.java        | 12 +++++++
 .../src/main/java/module-info.java            |  3 ++
 10 files changed, 153 insertions(+)
 create mode 100644 core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/pom.xml
 create mode 100644 core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/src/main/java/com/baeldung/consumermodule/Application.java
 create mode 100644 core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/src/main/java/module-info.java
 create mode 100644 core-java-modules/core-java-jpms/decoupling-pattern1/pom.xml
 create mode 100644 core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/pom.xml
 create mode 100644 core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/external/TextService.java
 create mode 100644 core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/external/TextServiceFactory.java
 create mode 100644 core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/internal/LowercaseTextService.java
 create mode 100644 core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/internal/UppercaseTextService.java
 create mode 100644 core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/module-info.java

diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/pom.xml b/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/pom.xml
new file mode 100644
index 0000000000..4f1a4794c8
--- /dev/null
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/pom.xml
@@ -0,0 +1,30 @@
+<?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>
+    <artifactId>mainappmodule</artifactId>
+    <packaging>jar</packaging>
+    <version>1.0</version>
+    
+    <parent>
+        <groupId>com.baeldung.decoupling-pattern1</groupId>
+        <artifactId>com.baeldung.decoupling-pattern1</artifactId>
+        <version>1.0</version>
+    </parent>
+    
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+    
+    <dependencies>
+        <dependency>
+            <groupId>com.baeldung.servicemodule</groupId>
+            <artifactId>servicemodule</artifactId>
+            <version>1.0</version>           
+        </dependency>
+    </dependencies>
+</project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/src/main/java/com/baeldung/consumermodule/Application.java b/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/src/main/java/com/baeldung/consumermodule/Application.java
new file mode 100644
index 0000000000..c4b5eed011
--- /dev/null
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/src/main/java/com/baeldung/consumermodule/Application.java
@@ -0,0 +1,13 @@
+package com.baeldung.consumermodule;
+
+import com.baeldung.servicemodule.external.TextService;
+import com.baeldung.servicemodule.external.TextServiceFactory;
+
+public class Application {
+    
+    public static void main(String args[]) {
+        TextService textService = TextServiceFactory.getTextService("lowercase");
+        System.out.println(textService.processText("Hello from Baeldung!"));
+    }
+    
+}
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/src/main/java/module-info.java b/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/src/main/java/module-info.java
new file mode 100644
index 0000000000..c02e6e6522
--- /dev/null
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/src/main/java/module-info.java
@@ -0,0 +1,3 @@
+module com.baeldung.consumermodule {
+    requires com.baeldung.servicemodule;
+}
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/pom.xml b/core-java-modules/core-java-jpms/decoupling-pattern1/pom.xml
new file mode 100644
index 0000000000..282723e0a0
--- /dev/null
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/pom.xml
@@ -0,0 +1,35 @@
+<?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>com.baeldung.decoupling-pattern1</groupId>
+    <artifactId>decoupling-pattern1</artifactId>
+    <version>1.0</version>
+    <packaging>pom</packaging>
+    
+    <modules>
+        <module>servicemodule</module>
+        <module>consumermodule</module>
+    </modules>
+    
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-compiler-plugin</artifactId>
+                    <version>3.8.0</version>
+                    <configuration>
+                        <source>11</source>
+                        <target>11</target>
+                    </configuration>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+    
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+</project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/pom.xml b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/pom.xml
new file mode 100644
index 0000000000..1bda70f867
--- /dev/null
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/pom.xml
@@ -0,0 +1,24 @@
+<?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>com.baeldung.servicemodule</groupId>
+    <artifactId>servicemodule</artifactId>
+    <packaging>jar</packaging>
+    
+    <parent>
+        <groupId>com.baeldung.decoupling-pattern1</groupId>
+        <artifactId>decoupling-pattern1</artifactId>
+        <version>1.0</version>
+    </parent>
+    
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+   
+</project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/external/TextService.java b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/external/TextService.java
new file mode 100644
index 0000000000..2b9f0dce50
--- /dev/null
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/external/TextService.java
@@ -0,0 +1,7 @@
+package com.baeldung.servicemodule.external;
+
+public interface TextService {
+    
+    String processText(String text);
+    
+}
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/external/TextServiceFactory.java b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/external/TextServiceFactory.java
new file mode 100644
index 0000000000..4611bc1c8c
--- /dev/null
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/external/TextServiceFactory.java
@@ -0,0 +1,14 @@
+package com.baeldung.servicemodule.external;
+
+import com.baeldung.servicemodule.internal.LowercaseTextService;
+import com.baeldung.servicemodule.internal.UppercaseTextService;
+
+public class TextServiceFactory {
+    
+    private TextServiceFactory() {}
+    
+    public static TextService getTextService(String name) {
+        return name.equalsIgnoreCase("lowercase") ? new LowercaseTextService(): new UppercaseTextService();
+    }
+    
+}
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/internal/LowercaseTextService.java b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/internal/LowercaseTextService.java
new file mode 100644
index 0000000000..e2d98f609e
--- /dev/null
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/internal/LowercaseTextService.java
@@ -0,0 +1,12 @@
+package com.baeldung.servicemodule.internal;
+
+import com.baeldung.servicemodule.external.TextService;
+
+public class LowercaseTextService implements TextService {
+
+    @Override
+    public String processText(String text) {
+        return text.toLowerCase();
+    }
+    
+}
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/internal/UppercaseTextService.java b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/internal/UppercaseTextService.java
new file mode 100644
index 0000000000..c94da2a8a5
--- /dev/null
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/com/baeldung/servicemodule/internal/UppercaseTextService.java
@@ -0,0 +1,12 @@
+package com.baeldung.servicemodule.internal;
+
+import com.baeldung.servicemodule.external.TextService;
+
+public class UppercaseTextService implements TextService {
+    
+    @Override
+    public String processText(String text) {
+        return text.toUpperCase();
+    }
+    
+}
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/module-info.java b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/module-info.java
new file mode 100644
index 0000000000..230b659aa9
--- /dev/null
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/src/main/java/module-info.java
@@ -0,0 +1,3 @@
+module com.baeldung.servicemodule {
+    exports com.baeldung.servicemodule.external;
+}