add demo module. #260

demo/pom.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0"?>
+<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>
+        <groupId>com.taobao.arthas</groupId>
+        <artifactId>arthas-all</artifactId>
+        <version>3.0.5-SNAPSHOT</version>
+    </parent>
+    <artifactId>arthas-demo</artifactId>
+    <name>arthas-demo</name>
+
+    <build>
+        <finalName>arthas-demo</finalName>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.6</source>
+                    <target>1.6</target>
+                    <encoding>UTF-8</encoding>
+                    <showDeprecation>true</showDeprecation>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>demo.MathGame</mainClass>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

demo/src/main/java/demo/MathGame.java

@@ -0,0 +1,63 @@
+package demo;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+import java.util.concurrent.TimeUnit;
+
+public class MathGame {
+    private static Random random = new Random();
+
+    private int illegalArgumentCount = 0;
+
+    public static void main(String[] args) throws InterruptedException {
+        MathGame game = new MathGame();
+        while (true) {
+            game.run();
+            TimeUnit.SECONDS.sleep(1);
+        }
+    }
+
+    public void run() throws InterruptedException {
+        try {
+            int number = random.nextInt();
+            List<Integer> primeFactors = primeFactors(number);
+            print(number, primeFactors);
+
+        } catch (Exception e) {
+            System.out.println(String.format("illegalArgumentCount:%3d, ", illegalArgumentCount) + e.getMessage());
+        }
+    }
+
+    public static void print(int number, List<Integer> primeFactors) {
+        StringBuffer sb = new StringBuffer(number + "=");
+        for (int factor : primeFactors) {
+            sb.append(factor).append('*');
+        }
+        if (sb.charAt(sb.length() - 1) == '*') {
+            sb.deleteCharAt(sb.length() - 1);
+        }
+        System.out.println(sb);
+    }
+
+    public List<Integer> primeFactors(int number) {
+        if (number < 2) {
+            illegalArgumentCount++;
+            throw new IllegalArgumentException("number is: " + number + ", need >= 2");
+        }
+
+        List<Integer> result = new ArrayList<Integer>();
+        int i = 2;
+        while (i <= number) {
+            if (number % i == 0) {
+                result.add(i);
+                number = number / i;
+                i = 2;
+            } else {
+                i++;
+            }
+        }
+
+        return result;
+    }
+}

packaging/src/main/assembly/assembly.xml

@@ -28,6 +28,10 @@
       <source>../boot/target/arthas-boot-jar-with-dependencies.jar</source>
       <destName>arthas-boot.jar</destName>
     </file>
+    <file>
+      <source>../demo/target/arthas-demo.jar</source>
+      <destName>arthas-demo.jar</destName>
+    </file>
 
     <file>
       <source>../bin/install-local.sh</source>

pom.xml

@@ -61,6 +61,7 @@
         <module>agent</module>
         <module>client</module>
         <module>boot</module>
+        <module>demo</module>
         <module>testcase</module>
         <module>site</module>
         <module>packaging</module>