Spring Kights IOC Project

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

package com.cv.spring.core; /** * @author Chandra Vardhan * */ public class BraveKnight implements Knight {   private Quest quest;      public BraveKnight(Quest quest) {     this.quest = quest;       //<co id="co_injectedQuest"/>   }      public void embarkOnQuest() throws QuestException {     quest.embark();   } }

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

package com.cv.spring.core; /** * @author Chandra Vardhan * */ public class DamselRescuingKnight implements Knight {   private RescueDamselQuest quest;      public DamselRescuingKnight() {     quest = new RescueDamselQuest(); //<co id="co_coupledToQuest"/>   }      public void embarkOnQuest() throws QuestException {     quest.embark();   } }

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

package com.cv.spring.core; /** * @author Chandra Vardhan * */ public interface Knight {   void embarkOnQuest() throws QuestException; }

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

package com.cv.spring.core; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /**  * @author Chandra Vardhan  *  */ public class KnightAopMain {   public static void main(String[] args) {     ApplicationContext context = new ClassPathXmlApplicationContext(         "knights-aop.xml");     Knight knight = (Knight) context.getBean("knight");     knight.embarkOnQuest();   } }

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

package com.cv.spring.core; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /**  * @author Chandra Vardhan  *  */ public class KnightMain {   public static void main(String[] args) {     ApplicationContext context = new ClassPathXmlApplicationContext(         "knights.xml"); // <co id="co_loadKnightContext"/>     Knight knight = (Knight) context.getBean("knight"); // <co                               // id="co_getBeanKnight"/>     knight.embarkOnQuest();// <co id="co_useKnight"/>   } }

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

package com.cv.spring.core; import org.apache.log4j.Logger; /**  * @author Chandra Vardhan  *  */ public class MakeRoundTableRounderQuest implements Quest {   private final static Logger LOGGER = Logger       .getLogger(MakeRoundTableRounderQuest.class);   public void embark() throws QuestException {     LOGGER.info("Making round table rounder");   } }

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

package com.cv.spring.core; import org.apache.log4j.Logger; /**  * @author Chandra Vardhan  *  */ public class Minstrel {   private final static Logger LOGGER = Logger.getLogger(Minstrel.class);   public void singBeforeQuest() { // <co id="co_singBefore"/>     LOGGER.info("Fa la la; The knight is so brave!");   }   public void singAfterQuest() { // <co id="co_singAfter"/>     LOGGER.info("Tee hee he; The brave knight did embark on a quest!");   } }

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

package com.cv.spring.core; /** * @author Chandra Vardhan * */ public interface Quest {   void embark() throws QuestException; }

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

package com.cv.spring.core; /** * @author Chandra Vardhan * */ public class QuestException extends RuntimeException {   private static final long serialVersionUID = 1L; }

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

package com.cv.spring.core; import org.apache.log4j.Logger; /**  * @author Chandra Vardhan  *  */ public class RescueDamselQuest implements Quest {   private final static Logger LOGGER = Logger       .getLogger(RescueDamselQuest.class);   public void embark() throws QuestException {     LOGGER.info("Rescuing damsel in distress");   } }

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

package com.cv.spring.core; import org.apache.log4j.Logger; /** * @author Chandra Vardhan * */ public class SlayDragonQuest implements Quest {      private final static Logger LOGGER = Logger.getLogger(SlayDragonQuest.class);      public void embark() throws QuestException {     LOGGER.info("Slaying Dragon!");   } }

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"> <modelVersion>4.0.0</modelVersion> <groupId>SpringKinghtsIOC</groupId> <artifactId>com.cv.spring.core</artifactId> <version>1.0</version> <name>SpringKinghtsIOC</name> <packaging>jar</packaging> <properties> <java-version>1.8</java-version> <log4j-version>1.2.16</log4j-version> <org.springframework-version>4.2.0.RELEASE</org.springframework-version> <jackson.version>2.5.3</jackson.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>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>${org.springframework-version}</version> </dependency> </dependencies> <build> <pluginManagement> <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> </pluginManagement> <finalName>SpringKinghtsIOC</finalName> </build> </project>

This is knights-aop.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="knight" class="com.cv.spring.core.BraveKnight"> <constructor-arg ref="quest" /> </bean> <bean id="quest" class="com.cv.spring.core.SlayDragonQuest" /> <bean id="minstrel" class="com.cv.spring.core.Minstrel" /> <!--<co id="co_minstrel_bean"/>--> <aop:config> <aop:aspect ref="minstrel"> <aop:pointcut id="embark" expression="execution(* *.embarkOnQuest(..))" /> <!--<co id="co_define_pointcut"/>--> <aop:before pointcut-ref="embark" method="singBeforeQuest"/> <!--<co id="co_minstrel_before_advice"/>--> <aop:after pointcut-ref="embark" method="singAfterQuest"/> <!--<co id="co_minstrel_after_advice"/>--> </aop:aspect> </aop:config> </beans>

This is knights.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> <bean id="knight" class="com.cv.spring.core.BraveKnight"> <constructor-arg ref="quest" /> <!--<co id="co_inject_quest_bean"/>--> </bean> <bean id="quest" class="com.cv.spring.core.SlayDragonQuest" /><!--<co id="co_quest_bean"/>--> </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