Initial commit

jcabi/pom.xml

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+<?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>jcabi</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <name>jcabi</name>
+    <packaging>jar</packaging>
+    
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-java</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
+        
+        <dependency>
+            <groupId>com.jcabi</groupId>
+            <artifactId>jcabi-aspects</artifactId>
+            <version>${jcabi-aspects.version}</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.aspectj</groupId>
+            <artifactId>aspectjrt</artifactId>
+            <version>${aspectjrt.version}</version>
+            <scope>runtime</scope>
+        </dependency>
+        
+    </dependencies>
+
+    <build>
+        <finalName>jcabi</finalName>
+        <plugins>
+            <plugin>
+                <groupId>com.jcabi</groupId>
+                <artifactId>jcabi-maven-plugin</artifactId>
+                <version>${jcabi-maven-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>ajc</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.aspectj</groupId>
+                        <artifactId>aspectjtools</artifactId>
+                        <version>${aspectjtools.version}</version>
+                    </dependency>
+                    <dependency>
+                        <groupId>org.aspectj</groupId>
+                        <artifactId>aspectjweaver</artifactId>
+                        <version>${aspectjweaver.version}</version>
+                    </dependency>
+                </dependencies>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <assertj.version>3.14.0</assertj.version>
+        <jcabi-aspects.version>0.22.6</jcabi-aspects.version>
+        <aspectjrt.version>1.9.5</aspectjrt.version>
+        <jcabi-maven-plugin.version>0.14.1</jcabi-maven-plugin.version>
+        <aspectjtools.version>1.9.1</aspectjtools.version>
+        <aspectjweaver.version>1.9.1</aspectjweaver.version>
+    </properties>
+
+</project>

jcabi/src/main/java/com/baeldung/jcabi_aspectj/Example.java

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+package com.baeldung.jcabi_aspectj;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+
+import com.jcabi.aspects.Async;
+import com.jcabi.aspects.Cacheable;
+import com.jcabi.aspects.LogExceptions;
+import com.jcabi.aspects.Loggable;
+import com.jcabi.aspects.Parallel;
+import com.jcabi.aspects.Quietly;
+import com.jcabi.aspects.RetryOnFailure;
+import com.jcabi.aspects.UnitedThrow;
+
+//@Loggable
+public class Example {
+
+    public static void main(String[] args) {
+        try {
+            tryAsync();
+            asyncFactorial(10).get();
+            System.out.println("calling 2...");
+            System.out.println(called2());    
+            //called3();
+            called4();
+            System.out.println(called2());
+            System.out.println(called2());
+            called6();
+            //called7();
+            
+            
+        } catch(Exception e) {
+
+        }
+        called5();
+        called8();
+    }
+
+    @Async
+    public static void tryAsync() {
+        long result = factorial(10);
+        System.out.println(result);
+    }
+    
+    @Async
+    public static Future<Long> asyncFactorial(int number) {
+        Future<Long> factorialFuture = CompletableFuture.supplyAsync(() -> factorial(number));
+        return factorialFuture;
+    }
+    
+    /**
+     * Finds factorial of a number
+     * @param number
+     * @return
+     */
+    public static long factorial(int number) {
+        long result = 1; 
+        for(int i=number;i>0;i--) {
+            result *= i; 
+        } 
+        return result; 
+    }
+
+    @Cacheable(lifetime = 5, unit = TimeUnit.SECONDS)
+    public static Double called2() {
+        return Math.random();
+    }
+
+    @LogExceptions
+    public static void called3() {
+        System.out.println(1/0);
+    }
+
+    @Loggable
+    public static void called4() {
+        System.out.println("checking loggable");
+    }
+
+    @Quietly
+    public static void called5() {
+        int x = 1/0;
+    }
+
+    @Parallel(threads = 4)
+    public static void called6() {
+        System.out.println("called6");
+    }
+    
+    @RetryOnFailure
+    //@Quietly
+    public static void called7() {
+        System.out.println("called7...");
+        int y = 1/0;
+    }
+    
+    @UnitedThrow //(IllegalStateException.class)
+    public static void called8() {
+        System.out.println("called8...");
+        int y = 1/0;
+    }
+
+}

jcabi/src/main/java/com/baeldung/jcabi_aspectj/User.java

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+package com.baeldung.jcabi_aspectj;
+
+public class User {
+
+}