Spring AOP XML Basic Project

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This is Audience.java file having the source code to execute business logic.

package com.cv.spring.aop.config; import org.apache.log4j.Logger; /**  * @author Chandra Vardhan  *  */ public class Audience {   private final static Logger LOGGER = Logger.getLogger(Audience.class);   public void takeSeats() {     LOGGER.info("takeSeats.");     LOGGER.info("takeSeats.");   }   public void turnOffCellPhones() {     LOGGER.info("turnOffCellPhones");     LOGGER.info("turnOffCellPhones");   }   public void applaud() {     LOGGER.info("CLAP CLAP......");     LOGGER.info("CLAP CLAP......");   }   public void demandRefund() {     LOGGER.info("Boo!       demandRefund!");     LOGGER.info("Boo!       demandRefund!");   }   public void watchPerformance() {     try {       LOGGER.info("Theaudienceistakingtheirseats.");       LOGGER.info("Theaudienceistakingtheirseats.");       LOGGER.info("Theaudienceisturningofftheircellphones");       LOGGER.info("Theaudienceisturningofftheircellphones");       long start = System.currentTimeMillis();       // joinpoint.proceed();       long end = System.currentTimeMillis();       LOGGER.info("CLAPCLAPCLAPCLAPCLAP");       LOGGER.info("CLAPCLAPCLAPCLAPCLAP");       LOGGER.info("Theperformancetook" + (end - start) + "milliseconds.");       LOGGER.info("Theperformancetook" + (end - start)           + "milliseconds.");     } catch (Throwable t) {       LOGGER.info("Boo!Wewantourmoneyback!");       LOGGER.info("Boo!Wewantourmoneyback!");     }   } }

This is AudienceAnnotation.java file having the source code to execute business logic.

package com.cv.spring.aop.config; import org.apache.log4j.Logger; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; /**  * @author Chandra Vardhan  *  */ public class AudienceAnnotation {      private final static Logger LOGGER = Logger.getLogger(AudienceAnnotation.class);   public void performance() {   }   @Around("performance()")   public void takeSeats() {     LOGGER.info("The audience istakingtheirseats.");     LOGGER.info("The audience istakingtheirseats.");   }   public void turnOffCellPhones() {     LOGGER.info("Theaudienceisturningofftheircellphones");     LOGGER.info("Theaudienceisturningofftheircellphones");   }   public void applaud() {     LOGGER.info("CLAPCLAPCLAPCLAPCLAP");     LOGGER.info("CLAPCLAPCLAPCLAPCLAP");   }   public void demandRefund() {     LOGGER.info("Boo!Wewantourmoneyback!");     LOGGER.info("Boo!Wewantourmoneyback!");   }   @Around("performance()")   public void watchPerformance(ProceedingJoinPoint joinpoint) {     try {       LOGGER.info("Theaudienceistakingtheirseats.");       LOGGER.info("Theaudienceistakingtheirseats.");       LOGGER.info("Theaudienceisturningofftheircellphones");       LOGGER.info("Theaudienceisturningofftheircellphones");       long start = System.currentTimeMillis();       joinpoint.proceed();       long end = System.currentTimeMillis();       LOGGER.info("CLAPCLAPCLAPCLAPCLAP");       LOGGER.info("CLAPCLAPCLAPCLAPCLAP");       LOGGER.info("Theperformancetook" + (end - start) + "milliseconds.");       LOGGER.info("Theperformancetook" + (end - start)           + "milliseconds.");     } catch (Throwable t) {       LOGGER.info("Boo!Wewantourmoneyback!");       LOGGER.info("Boo!Wewantourmoneyback!");     }   } }

This is City.java file having the source code to execute business logic.

package com.cv.spring.aop.config; /**  * @author Chandra Vardhan  *  */ public class City {      private String name;   private String state;      private int population;   public String getName() {     return name;   }      public void setName(String name) {     this.name = name;   }      public String getState() {     return state;   }      public void setState(String state) {     this.state = state;   }      public int getPopulation() {     return population;   }      public void setPopulation(int population) {     this.population = population;   } }

This is Instrument.java file having the source code to execute business logic.

package com.cv.spring.aop.config; /**  * @author Chandra Vardhan  *  */ public interface Instrument {   void play(); }

This is Instrumentalist.java file having the source code to execute business logic.

package com.cv.spring.aop.config; import org.apache.log4j.Logger; /**  * @author Chandra Vardhan  *  */ public class Instrumentalist  implements Performer {   private final static Logger LOGGER = Logger.getLogger(Instrumentalist.class);      private String song;   // private City city;   private Instrument instrument;   public Instrumentalist() {   }   public Instrumentalist(Instrument instrument) {     this.instrument = instrument;   }   public Instrument getInstrument() {     return instrument;   }   public void setInstrument(Instrument instrument) {     this.instrument = instrument;   }   public String getSong() {     return song;   }   public void setSong(String song) {     this.song = song;   }   /*    * public City getCity() { return city; }    *     * public void setCity(City city) { this.city = city; }    */   public void perform() {     LOGGER.info("Instrument is");     LOGGER.info("Instrument is");     // instrument.play();     LOGGER.info("song==" + song);     LOGGER.info("song==" + song);   } }

This is MainProgram.java file having the source code to execute business logic.

package com.cv.spring.aop.config; import org.springframework.context.ConfigurableApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /**  * @author Chandra Vardhan  *  */ public class MainProgram {   public static void main(String[] args) {          ConfigurableApplicationContext applicationContext = new ClassPathXmlApplicationContext(         "spring-config.xml");     Performer performer = (Performer) applicationContext.getBean("instrumentalist");     performer.perform();          applicationContext.close();   } }

This is Performer.java file having the source code to execute business logic.

package com.cv.spring.aop.config; /**  * @author Chandra Vardhan  *  */ public interface Performer {      public void perform(); }

This is Piano.java file having the source code to execute business logic.

package com.cv.spring.aop.config; import org.apache.log4j.Logger; /**  * @author Chandra Vardhan  *  */ public class Piano implements Instrument {      private final static Logger LOGGER = Logger.getLogger(Piano.class);   public Piano() {   }   public void play() {     LOGGER.info("PLINK PLINK");     LOGGER.info("PLINK PLINK");     String name = null;     // name.toString();   } }

This is Saxophone.java file having the source code to execute business logic.

package com.cv.spring.aop.config; import org.apache.log4j.Logger; /**  * @author Chandra Vardhan  *  */ public class Saxophone implements Instrument {      private final static Logger LOGGER = Logger.getLogger(Saxophone.class);      public Saxophone() {   }   public void play() {     LOGGER.info("TOOT TOOT TOOT");     LOGGER.info("TOOT TOOT TOOT");   } }

This is pom.xml file having the entries of dependency jars and information to build the application .

<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">.0" encoding="UTF-8"?> <modelVersion>4.0.0</modelVersion> <groupId>com.cv.spring.annotation</groupId> <artifactId>SpringAOPXMLBasic</artifactId> <name>SpringAOPXMLBasic</name> <packaging>jar</packaging> <version>1.0</version> <properties> <java-version>1.8</java-version> <log4j-version>1.2.17</log4j-version> <org.springframework-version>4.2.0.RELEASE</org.springframework-version> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjrt</artifactId> <version>1.7.3</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>${org.springframework-version}</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> </build> </project>

This is spring-config.xml file having the spring configuration properties.

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd "> <bean id="instrumentalist" class="com.cv.spring.aop.config.Instrumentalist"> <property name="song" value="Jingle Bells" /> <property name="instrument" ref="instrument" /> </bean> <bean id="instrument" class="com.cv.spring.aop.config.Piano" /> <bean id="audience" class="com.cv.spring.aop.config.Audience"></bean> <aop:config> <aop:aspect ref="audience"> <aop:pointcut id="performance" expression="execution(* com.cv.spring.aop.config.Performer.perform(..))" /> <aop:before pointcut-ref="performance" method="takeSeats" /> <aop:before pointcut-ref="performance" method="turnOffCellPhones" /> <aop:after-returning pointcut-ref="performance" method="applaud" /> <aop:around pointcut-ref="performance" method="watchPerformance" /> </aop:aspect> </aop:config> </beans>

This is log4j.properties file having the entries for logging the information into the console/file.

#By default enabling Console appender # Root logger option log4j.rootLogger=INFO, stdout # Redirect log messages to console log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target=System.out log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%-5p [%c]:%L -->> %m%n # Redirect log messages to a log file #log4j.appender.file=org.apache.log4j.RollingFileAppender #log4j.appender.file.File=C:\servlet-application.log #log4j.appender.file.MaxFileSize=5MB #log4j.appender.file.MaxBackupIndex=10 #log4j.appender.file.layout=org.apache.log4j.PatternLayout #log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n