Spring BeanAware Impl Project

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

package com.cv.spring.bean.aware; import org.apache.log4j.Logger; import org.springframework.beans.BeansException; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; /**  * @author Chandra Vardhan  */ public class ApplicationContextAwareImpl implements ApplicationContextAware {   private final static Logger LOGGER = Logger.getLogger(ApplicationContextAwareImpl.class);   @Override   public void setApplicationContext(ApplicationContext arg0)       throws BeansException {     LOGGER.info("setApplicationContext called...." + arg0);   }   public void main() {     LOGGER.info("main() called....");   } }

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

package com.cv.spring.bean.aware; import org.apache.log4j.Logger; import org.springframework.beans.BeansException; import org.springframework.beans.factory.BeanFactory; import org.springframework.beans.factory.BeanFactoryAware; /**  * @author Chandra Vardhan  */ public class BeanFactoryAwareImpl implements BeanFactoryAware {   private final static Logger LOGGER = Logger.getLogger(BeanFactoryAwareImpl.class);   @Override   public void setBeanFactory(BeanFactory arg0) throws BeansException {     LOGGER.info("setBeanFactory called...."+arg0);   }   public void main() {     LOGGER.info("main() called....");   } }

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

package com.cv.spring.bean.aware; import org.apache.log4j.Logger; import org.springframework.beans.factory.BeanNameAware; /**  * @author Chandra Vardhan  */ public class BeanNameAwareImpl implements BeanNameAware {     private final static Logger LOGGER = Logger.getLogger(BeanNameAwareImpl.class);   @Override   public void setBeanName(String arg0) {     LOGGER.info("setBeanName called..."+arg0);   }   public void main() {     LOGGER.info("main() called....");   } }

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

package com.cv.spring.bean.aware; import org.apache.log4j.Logger; import org.springframework.beans.BeansException; import org.springframework.beans.factory.config.BeanPostProcessor; /**  * @author Chandra Vardhan  */ public class BeanPostProcessorImpl implements BeanPostProcessor {     private final static Logger LOGGER = Logger.getLogger(BeanPostProcessorImpl.class);   @Override   public Object postProcessAfterInitialization(Object arg0, String arg1)       throws BeansException {     LOGGER.info("postProcessAfterInitialization called...."+arg0);     LOGGER.info("postProcessAfterInitialization called...."+arg1);     return arg0;   }   @Override   public Object postProcessBeforeInitialization(Object arg0, String arg1)       throws BeansException {     LOGGER.info("postProcessBeforeInitialization called...."+arg0);     LOGGER.info("postProcessBeforeInitialization called...."+arg1);     return arg0;   }      public void main() {     LOGGER.info("main() called....");   } }

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

package com.cv.spring.bean.aware; import org.apache.log4j.Logger; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /**  * @author Chandra Vardhan  */ public class KnightTest {   private final static Logger LOGGER = Logger.getLogger(KnightTest.class);   /**    * @param args    */   public static void main(String[] args) {     String configLocation = "applicationContext.xml";     ApplicationContext factory = new ClassPathXmlApplicationContext(configLocation);     LOGGER.info(factory.containsBean("quest"));          BeanPostProcessorImpl b =(BeanPostProcessorImpl)factory.getBean("quest4");     b.main();          ApplicationContextAwareImpl a =(ApplicationContextAwareImpl)factory.getBean("quest3");     a.main();               BeanFactoryAwareImpl beanFactoryAwareImpl =(BeanFactoryAwareImpl)factory.getBean("quest2");     beanFactoryAwareImpl.main();          BeanNameAwareImpl beanNameAwareImpl =(BeanNameAwareImpl)factory.getBean("quest");     beanNameAwareImpl.main();                 } }

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>SpringBeanAwareImpl</artifactId> <name>SpringBeanAwareImpl</name> <packaging>jar</packaging> <version>1.0</version> <properties> <java-version>1.8</java-version> <log4j-version>1.2.16</log4j-version> <org.springframework-version>4.1.6.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> </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 applicationContext.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="quest" class="com.cv.spring.bean.aware.BeanNameAwareImpl" /> <bean id="quest2" class="com.cv.spring.bean.aware.BeanFactoryAwareImpl" /> <bean id="quest3" class="com.cv.spring.bean.aware.ApplicationContextAwareImpl" /> <bean id="quest4" class="com.cv.spring.bean.aware.BeanPostProcessorImpl" /> </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