From dbb25da0b078a1550b0ed0e717bd1626079007ef Mon Sep 17 00:00:00 2001
From: sampadawagde <sampada.wagde@gmail.com>
Date: Sun, 28 Jun 2020 13:47:27 +0530
Subject: [PATCH] JAVA-49: Moved maven-custom-plugin to maven-modules

---
 maven-modules/maven-custom-plugin/README.md   |  7 ++
 .../counter-maven-plugin/pom.xml              | 80 +++++++++++++++++++
 .../validator/DependencyCounterMojo.java      | 45 +++++++++++
 maven-modules/maven-custom-plugin/pom.xml     | 21 +++++
 .../maven-custom-plugin/usage-example/pom.xml | 51 ++++++++++++
 5 files changed, 204 insertions(+)
 create mode 100644 maven-modules/maven-custom-plugin/README.md
 create mode 100644 maven-modules/maven-custom-plugin/counter-maven-plugin/pom.xml
 create mode 100644 maven-modules/maven-custom-plugin/counter-maven-plugin/src/main/java/com/baeldung/maven/plugin/validator/DependencyCounterMojo.java
 create mode 100644 maven-modules/maven-custom-plugin/pom.xml
 create mode 100644 maven-modules/maven-custom-plugin/usage-example/pom.xml

diff --git a/maven-modules/maven-custom-plugin/README.md b/maven-modules/maven-custom-plugin/README.md
new file mode 100644
index 0000000000..1889036ce3
--- /dev/null
+++ b/maven-modules/maven-custom-plugin/README.md
@@ -0,0 +1,7 @@
+## Apache Maven
+
+This module contains articles about creating a custom plugin in Maven.
+
+### Relevant Articles
+
+- [How to Create a Maven Plugin](https://www.baeldung.com/maven-plugin)
diff --git a/maven-modules/maven-custom-plugin/counter-maven-plugin/pom.xml b/maven-modules/maven-custom-plugin/counter-maven-plugin/pom.xml
new file mode 100644
index 0000000000..7ddf5b739c
--- /dev/null
+++ b/maven-modules/maven-custom-plugin/counter-maven-plugin/pom.xml
@@ -0,0 +1,80 @@
+<?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/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung</groupId>
+    <artifactId>counter-maven-plugin</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>counter-maven-plugin Maven Mojo</name>
+    <packaging>maven-plugin</packaging>
+    <url>http://maven.apache.org</url>
+
+    <organization>
+        <name>Baeldung</name>
+        <url>https://www.baeldung.com/</url>
+    </organization>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-plugin-api</artifactId>
+            <version>${maven-plugin-api.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven.plugin-tools</groupId>
+            <artifactId>maven-plugin-annotations</artifactId>
+            <version>${maven-plugin-annotations.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-project</artifactId>
+            <version>${maven-project.version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-plugin-plugin</artifactId>
+                    <version>${maven-plugin-plugin.version}</version>
+                </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-site-plugin</artifactId>
+                    <version>${maven-site-plugin.version}</version>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+
+    <reporting>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-plugin-plugin</artifactId>
+                <reportSets>
+                    <reportSet>
+                        <reports>
+                            <report>report</report>
+                        </reports>
+                    </reportSet>
+                </reportSets>
+            </plugin>
+        </plugins>
+    </reporting>
+
+    <properties>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven-plugin-api.version>3.6.2</maven-plugin-api.version>
+        <maven-plugin-annotations.version>3.6.0</maven-plugin-annotations.version>
+        <maven-project.version>2.2.1</maven-project.version>
+        <maven-plugin-plugin.version>3.6.0</maven-plugin-plugin.version>
+        <maven-site-plugin.version>3.8.2</maven-site-plugin.version>
+    </properties>
+
+</project>
\ No newline at end of file
diff --git a/maven-modules/maven-custom-plugin/counter-maven-plugin/src/main/java/com/baeldung/maven/plugin/validator/DependencyCounterMojo.java b/maven-modules/maven-custom-plugin/counter-maven-plugin/src/main/java/com/baeldung/maven/plugin/validator/DependencyCounterMojo.java
new file mode 100644
index 0000000000..4bb53b20cf
--- /dev/null
+++ b/maven-modules/maven-custom-plugin/counter-maven-plugin/src/main/java/com/baeldung/maven/plugin/validator/DependencyCounterMojo.java
@@ -0,0 +1,45 @@
+package com.baeldung.maven.plugin.validator;
+
+import java.util.List;
+
+import org.apache.maven.model.Dependency;
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugin.MojoFailureException;
+import org.apache.maven.plugins.annotations.LifecyclePhase;
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.Parameter;
+import org.apache.maven.project.MavenProject;
+
+/**
+ * Counts the number of maven dependencies of a project.
+ * 
+ * It can be filtered by scope.
+ *
+ */
+@Mojo(name = "dependency-counter", defaultPhase = LifecyclePhase.COMPILE)
+public class DependencyCounterMojo extends AbstractMojo {
+
+    /**
+     * Scope to filter the dependencies.
+     */
+    @Parameter(property = "scope")
+    String scope;
+
+    /**
+     * Gives access to the Maven project information.
+     */
+    @Parameter(defaultValue = "${project}", required = true, readonly = true)
+    MavenProject project;
+
+    public void execute() throws MojoExecutionException, MojoFailureException {
+        List<Dependency> dependencies = project.getDependencies();
+
+        long numDependencies = dependencies.stream()
+            .filter(d -> (scope == null || scope.isEmpty()) || scope.equals(d.getScope()))
+            .count();
+
+        getLog().info("Number of dependencies: " + numDependencies);
+    }
+
+}
diff --git a/maven-modules/maven-custom-plugin/pom.xml b/maven-modules/maven-custom-plugin/pom.xml
new file mode 100644
index 0000000000..ad22c735ff
--- /dev/null
+++ b/maven-modules/maven-custom-plugin/pom.xml
@@ -0,0 +1,21 @@
+<?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>maven-custom-plugin</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>maven-custom-plugin</name>
+    <packaging>pom</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>maven-modules</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+
+    <modules>
+        <module>counter-maven-plugin</module>
+        <module>usage-example</module>
+    </modules>
+
+</project>
\ No newline at end of file
diff --git a/maven-modules/maven-custom-plugin/usage-example/pom.xml b/maven-modules/maven-custom-plugin/usage-example/pom.xml
new file mode 100644
index 0000000000..f512fc104d
--- /dev/null
+++ b/maven-modules/maven-custom-plugin/usage-example/pom.xml
@@ -0,0 +1,51 @@
+<?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</groupId>
+    <artifactId>usage-example</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <packaging>pom</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons.lang3.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>com.baeldung</groupId>
+                <artifactId>counter-maven-plugin</artifactId>
+                <version>0.0.1-SNAPSHOT</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>dependency-counter</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <scope>test</scope>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <commons.lang3.version>3.9</commons.lang3.version>
+        <junit.version>4.12</junit.version>
+    </properties>
+
+</project>