spring lab4 備忘記

這次備忘記主要是記錄 Spring course lab4 的過程.

lab4 requirement 的下載位址是：
http://blog.matrix.org.cn/resources/joeyta/spring_lab_04.zip

源程式下載位址是：
http://blog.matrix.org.cn/resources/joeyta/cpttm_spring_lab.zip

要求使用 Spring AOP 裡的 Advisor 及 Auto proxy 實作圖書館系統簡單功能.
包括 FlowControlPointcut 及 Introduction.

開始備忘記：
[1] 開始實作 lab 4：
<!--------------------- beans-config-lab4.xml ------------------>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEA N//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>
 <bean id="libraryLogBeforeAdvice" class="mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice" />

 <bean id="libraryAdvisor" class="org.springframework.aop.support.NameMatchMethodPointcutAdvisor">
  <property name="mappedNames">
   <list>
    <value>borrowBook</value>
    <value>returnBook</value>
   </list>
  </property>
  <property name="advice">
   <ref bean="libraryLogBeforeAdvice" />
  </property>
 </bean>

 <bean id="libraryChinaService" class="mo.org.cpttm.spring.lab4.Library">
  <property name="libraryId">
   <value>china</value>
  </property>
 </bean>

 <bean id="libraryMacauService" class="mo.org.cpttm.spring.lab4.Library">
  <property name="libraryId">
   <value>macau</value>
  </property>
 </bean>

 <bean id="libraryHKService" class="mo.org.cpttm.spring.lab4.Library">
  <property name="libraryId">
   <value>hk</value>
  </property>
 </bean>

 <bean id="libraryNetworkService" class="mo.org.cpttm.spring.lab4.LibraryNetwork">
  <property name="members">
   <list>
    <ref bean="libraryChinaService"/>
    <ref bean="libraryMacauService"/>    
    <ref bean="libraryHKService"/>    
   </list>
  </property>
 </bean>

 <bean id="libraryNetworkFlowControlPointcut"
  class="org.springframework.aop.support.ControlFlowPointcut">
  <constructor-arg index="0">
   <value>mo.org.cpttm.spring.lab4.LibraryNetwork</value>
  </constructor-arg>
  <constructor-arg index="1">
   <value>searchBook</value>
  </constructor-arg>
 </bean>

 <bean id="conferenceCenterIntroduction" class="mo.org.cpttm.spring.lab4.ConferenceCenterIntroduction"></bean>
 
 <bean id="conferenceCenterAdvisor" class="org.springframework.aop.support.DefaultIntroductionAdvisor">
  <constructor-arg index="0">
   <ref bean="conferenceCenterIntroduction"/>
  </constructor-arg>
  <constructor-arg index="1">
   <value>mo.org.cpttm.spring.lab4.IConferenceCenter</value>
  </constructor-arg>
 </bean>
 
 <bean id="libraryNetworkAdvisor" class="org.springframework.aop.support.DefaultPointcutAdvisor">
  <property name="advice">
   <ref bean="libraryLogBeforeAdvice"/>
  </property>
  <property name="pointcut">
   <ref bean="libraryNetworkFlowControlPointcut"/>
  </property>
 </bean>

 <bean id="libraryProxyCreator"
  class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
  <property name="beanNames">
   <list>
    <value>*Service</value>
   </list>
  </property>
  <property name="interceptorNames">
   <list>
    <value>libraryAdvisor</value>
    <value>libraryNetworkAdvisor</value> 
    <value>conferenceCenterAdvisor</value>   
   </list>
  </property>
 </bean>

</beans>
<!--------------------- beans-config-lab4.xml ------------------>

/**************** LibraryLogBeforeAdvice.java *******************/
package mo.org.cpttm.spring.lab4;

import java.lang.reflect.Method;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.springframework.aop.MethodBeforeAdvice;

public class LibraryLogBeforeAdvice implements MethodBeforeAdvice {
 private Logger logger = Logger.getLogger(this.getClass().getName());

 public void before(Method method, Object[] args, Object target)
   throws Throwable {
  logger.log(Level.INFO, "Before call by : " + method.getName());
  if (args != null) {
   for (Object object : args) {
    logger.log(Level.INFO, "Arguments : " + object.toString());
   }
  }
 }
}
/**************** LibraryLogBeforeAdvice.java *******************/

/**************** Book.java *******************/
package mo.org.cpttm.spring.lab4;

public class Book {
 @Override
 public String toString() {
  return "Book id:" + this.id + " # name:" + this.name + " # status:"
    + this.status;
 }

 public static final int AVAILABLE = 1;

 public static final int UNAVAILABLE = 2;

 private String id;

 private String name;

 private int status;

 public Book() {
 }

 public Book(String id, String name, int status) {
  this.id = id;
  this.name = name;
  this.status = status;
 }

 public String getId() {
  return id;
 }

 public void setId(String id) {
  this.id = id;
 }

 public String getName() {
  return name;
 }

 public void setName(String name) {
  this.name = name;
 }

 public int getStatus() {
  return status;
 }

 public void setStatus(int status) {
  this.status = status;
 }
}
/**************** Book.java *******************/

/**************** ILibrary.java *******************/
package mo.org.cpttm.spring.lab4;

import java.util.List;

public interface ILibrary {
 public String getLibraryId();
 public void setLibraryId(String libraryId);
 public void borrowBook(String bookId);
 public void returnBook(String bookId);
 public List<Book> searchBook(String keyword);
}
/**************** ILibrary.java *******************/

/**************** Library.java *******************/
package mo.org.cpttm.spring.lab4;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.Map.Entry;

public class Library implements ILibrary {
 private Map<String,Book> books;
 private String libraryId;
 public Library() {
  books = new TreeMap<String,Book>();
  books.put("b1",new Book("b1","springframework", Book.AVAILABLE));
  books.put("b2",new Book("b2","ejb3", Book.AVAILABLE));
  books.put("b3",new Book("b3","hibernate", Book.AVAILABLE));
  books.put("b4",new Book("b4","design pattern", Book.AVAILABLE));
  books.put("b5",new Book("b5","tapestry with ajax", Book.AVAILABLE));  
  books.put("b6",new Book("b6","webwork", Book.AVAILABLE));  
  books.put("b7",new Book("b7","jsf with ajax", Book.AVAILABLE));  
 }

 public void borrowBook(String bookId) {
  books.get(bookId).setStatus(Book.UNAVAILABLE);
 }

 public String getLibraryId() {
  return this.libraryId;
 }

 public void returnBook(String bookId) {
  books.get(bookId).setStatus(Book.AVAILABLE);
 }

 public List<Book> searchBook(String keyword) {
  List<Book> bookResultList = new ArrayList<Book>();
  for (Iterator iter = books.entrySet().iterator(); iter.hasNext();) {
   Entry entry = (Entry) iter.next();
   Book book = (Book)entry.getValue();
   if(book.getName().toLowerCase().indexOf(keyword.toLowerCase()) >= 0 ){
    bookResultList.add(book);
   }
  }
  return bookResultList;
 }

 public void setLibraryId(String libraryId) {
  this.libraryId = libraryId;
 }

}
/**************** Library.java *******************/

/**************** ILibraryNetwork.java *******************/
package mo.org.cpttm.spring.lab4;

import java.util.List;
import java.util.Map;

public interface ILibraryNetwork {
 public void setMembers(ILibrary[] members);
 public Map<String,List<Book>> searchBook(String keyword);
}
/**************** ILibraryNetwork.java *******************/

/**************** LibraryNetwork.java *******************/
package mo.org.cpttm.spring.lab4;

import java.util.List;
import java.util.Map;
import java.util.TreeMap;

public class LibraryNetwork implements ILibraryNetwork {
 ILibrary[] libraries;
 public Map<String,List<Book>> searchBook(String keyword) {
  Map<String, List<Book>> map = new TreeMap<String, List<Book>>();
  for (ILibrary library : libraries) {
   map.put(library.getLibraryId(), library.searchBook(keyword));
  }
  return map;
 }

 public void setMembers(ILibrary[] members) {
  this.libraries = members;
 }

}
/**************** LibraryNetwork.java *******************/

/**************** IConferenceCenter.java *******************/
package mo.org.cpttm.spring.lab4;

import java.util.Date;

public interface IConferenceCenter {
 public void book(Date date, String person);
}
/**************** IConferenceCenter.java *******************/

/************* ConferenceCenterIntroduction.java ****************/
package mo.org.cpttm.spring.lab4;

import java.util.Date;
import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;
import java.util.Map.Entry;

import org.springframework.aop.support.DelegatingIntroductionInterceptor;

public class ConferenceCenterIntroduction extends
  DelegatingIntroductionInterceptor implements IConferenceCenter {

 private static final long serialVersionUID = -2727120915723691792L;

 private Map<Date, String> map;

 public void book(Date date, String person) {
  if (map == null) {
   map = new TreeMap<Date, String>();
  }
  map.put(date, person);
  for (Iterator iter = map.entrySet().iterator(); iter.hasNext();) {
   Entry entry = (Entry) iter.next();
   Date bookDate = (Date) entry.getKey();
   String bookPerson = (String) entry.getValue();
   System.out.println("Conference Book Date:" + bookDate + " # Person:" + bookPerson);
  }
 }

}
/************* ConferenceCenterIntroduction.java ****************/

/**************** LibraryDemo.java *******************/
package mo.org.cpttm.spring.lab4;

import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class LibraryDemo {
 public static void printBooks(String location,List<Book> list){
  for (Iterator<Book> iter = list.iterator(); iter.hasNext();) {
   Book book = iter.next();
   System.out.println(location +"#" + book);
  }
 }
 
 @SuppressWarnings("unchecked")
 public static void printBooks(Map<String,List<Book>> map){
  for (Iterator iter = map.entrySet().iterator(); iter.hasNext();) {
   Entry entry = (Entry) iter.next();
   String key = (String)entry.getKey();   
   List<Book> value = (List<Book>) entry.getValue();
   printBooks(key,value);
  }
  
 }
 
 public static void main(String[] args) throws Exception {
  ApplicationContext context = new ClassPathXmlApplicationContext(
    "mo/org/cpttm/spring/lab4/beans-config-lab4.xml");
  ILibrary library = (ILibrary) context.getBean("libraryChinaService");
  library.borrowBook("b1");
  printBooks("China",library.searchBook("spring"));  

  library = (ILibrary) context.getBean("libraryMacauService");
  library.borrowBook("b1");
  library.returnBook("b1");
  library.borrowBook("b7");
  printBooks("Macau",library.searchBook("ajax"));
  
  library = (ILibrary) context.getBean("libraryHKService");
  library.borrowBook("b3");
  library.borrowBook("b4");
  library.borrowBook("b5");
  printBooks("HK",library.searchBook("e"));

  System.out.println("************************************************");;
  
  ILibraryNetwork libraryNetwork = (ILibraryNetwork) context.getBean("libraryNetworkService");
  printBooks(libraryNetwork.searchBook("e"));

  
  System.out.println("************************************************");;
 
  ((IConferenceCenter) libraryNetwork).book(new Date(), "joeyta");
 }
}
/**************** LibraryDemo.java *******************/

執行結果如下所示：
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : borrowBook
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Arguments : b1
China#Book id:b1 # name:springframework # status:22006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : borrowBook
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Arguments : b1
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : returnBook

2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Arguments : b1
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : borrowBook
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Arguments : b7
Macau#Book id:b5 # name:tapestry with ajax # status:1
Macau#Book id:b7 # name:jsf with ajax # status:2
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : borrowBook
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Arguments : b3
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : borrowBook
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Arguments : b4
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : borrowBook
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Arguments : b5
HK#Book id:b1 # name:springframework # status:1
HK#Book id:b2 # name:ejb3 # status:1
HK#Book id:b3 # name:hibernate # status:2
HK#Book id:b4 # name:design pattern # status:2
HK#Book id:b5 # name:tapestry with ajax # status:2
HK#Book id:b6 # name:webwork # status:1
**********************************************************
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : getLibraryId
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : searchBook
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Arguments : e
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : getLibraryId
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : searchBook
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Arguments : e
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : getLibraryId
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Before call by : searchBook
2006/10/13 上午 10:22:29 mo.org.cpttm.spring.lab4.LibraryLogBeforeAdvice before
資訊: Arguments : e
china#Book id:b1 # name:springframework # status:2
china#Book id:b2 # name:ejb3 # status:1
china#Book id:b3 # name:hibernate # status:1
china#Book id:b4 # name:design pattern # status:1
china#Book id:b5 # name:tapestry with ajax # status:1
china#Book id:b6 # name:webwork # status:1
hk#Book id:b1 # name:springframework # status:1
hk#Book id:b2 # name:ejb3 # status:1
hk#Book id:b3 # name:hibernate # status:2
hk#Book id:b4 # name:design pattern # status:2
hk#Book id:b5 # name:tapestry with ajax # status:2
hk#Book id:b6 # name:webwork # status:1
macau#Book id:b1 # name:springframework # status:1
macau#Book id:b2 # name:ejb3 # status:1
macau#Book id:b3 # name:hibernate # status:1
macau#Book id:b4 # name:design pattern # status:1
macau#Book id:b5 # name:tapestry with ajax # status:1
macau#Book id:b6 # name:webwork # status:1
**********************************************************
Conference Book Date:Fri Oct 13 10:22:29 GMT+08:00 2006 # Person:joeyta