bookeditaction.java

struts + hibernate + spring ssh 的源码练习

//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_3.8.0/xslt/JavaClass.xsl

package struts.action;

import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;

import persistence.bl.LibraryManager;
import struts.form.BookEditForm;


/** 
 * MyEclipse Struts
 * Creation date: 11-04-2004
 * 
 * XDoclet definition:
 * @struts:action path="/bookEdit" name="bookEditForm" parameter="do" scope="request" validate="true"
 * @struts:action-forward name="/jsp/bookEdit.jsp" path="/jsp/bookEdit.jsp"
 */
public class BookEditAction extends DispatchAction {

	/** 
	 * loads the book specified by the id from the database and forwards to the edit form
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward editBook(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
	  System.out.println("editBook");
		BookEditForm bookEditForm = (BookEditForm) form;
		
		/* lalinuna.de 04.11.2004
		 * get id of the book from request
		 */
		Long id = Long.valueOf(request.getParameter("id"));
			// [laliluna] 28.11.2004  get business logic
		LibraryManager libraryManager = new LibraryManager();
		bookEditForm.setBook(libraryManager.getBookByPrimaryKey(id));
		return mapping.findForward("showEdit");
	}
	
	/** 
	 * loads a book from the db and forwards to the borrow book form
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward borrowBook(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
	  System.out.println("borrowBook");
		
	  BookEditForm bookEditForm = (BookEditForm) form;
		
		/* lalinuna.de 04.11.2004
		 * get id of the book from request
		 */
		Long id = Long.valueOf(request.getParameter("id"));
		
		/* lalinuna.de 16.11.2004
		 * load the session facade for book and user 
		 * get the book information and get all users
		 */
		LibraryManager libraryManager = new LibraryManager();
		
		// [laliluna] 28.11.2004 save book in the form
		bookEditForm.setBook(libraryManager.getBookByPrimaryKey(id));
		// [laliluna] 28.11.2004 save customers in the reqest
		request.setAttribute("customers", libraryManager.getAllCustomers());
			
		return mapping.findForward("showBorrow");
	}
	
	/** 
	 * return a book from a customer
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward returnBook(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
	  System.out.println("returnBook");
		
	  BookEditForm bookEditForm = (BookEditForm) form;
		
		/* lalinuna.de 04.11.2004
		 * get id of the book from request
		 */
		Long id = Long.valueOf(request.getParameter("id"));
		
		// [laliluna] 28.11.2004 get business logic
		LibraryManager libraryManager = new LibraryManager();
		
		libraryManager.returnBook(id);
		
		return mapping.findForward("showList");
	}
	
	/** 
	 * deletes a book from the database
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward deleteBook(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
	  System.out.println("deleteBook");
		
	  BookEditForm bookEditForm = (BookEditForm) form;
		
		/* lalinuna.de 04.11.2004
		 * get id of the book from request
		 */
		Long id = Long.valueOf(request.getParameter("id"));
		
		// [laliluna] 28.11.2004 get business logic
		LibraryManager libraryManager = new LibraryManager();
		
		libraryManager.removeBookByPrimaryKey(id);
		
		return mapping.findForward("showList");
	}

	/** 
	 * forwards to the add book form
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward addBook(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
	  System.out.println("addBook");
		
	  BookEditForm bookEditForm = (BookEditForm) form;
		
		return mapping.findForward("showAdd");
		
	}
	
	/** 
	 * saves the borrow assigned in the form in the database
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward saveBorrow(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		BookEditForm bookEditForm = (BookEditForm) form;
		
		// [laliluna] 28.11.2004 get business logc
		LibraryManager libraryManager = new LibraryManager();
		libraryManager.borrowBook(bookEditForm.getId(), bookEditForm.getCustomerId());
		
		return mapping.findForward("showList");
	}
	
	/** 
	 * updates or creates the book in the database
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward saveBook(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		BookEditForm bookEditForm = (BookEditForm) form;
		
		// [laliluna] 28.11.2004 get business logic
		LibraryManager libraryManager = new LibraryManager();
		libraryManager.saveBook(bookEditForm.getBook());
		return mapping.findForward("showList");
	}
}