package com.oreilly.jent.struts.library.ui;

/**
 * In general, you may use the code in this book in your programs and 
 * documentation. You do not need to contact us for permission unless 
 * you're reproducing a significant portion of the code. For example, 
 * writing a program that uses several chunks of code from this book does 
 * not require permission. Selling or distributing a CD-ROM of examples 
 * from O'Reilly books does require permission. Answering a question by 
 * citing this book and quoting example code does not require permission. 
 * Incorporating a significant amount of example code from this book into 
 * your product's documentation does require permission.
 * 
 * We appreciate, but do not require, attribution. An attribution usually 
 * includes the title, author, publisher, and ISBN. For example: 
 * 
 *   "Java Enterprise in a Nutshell, Third Edition, 
 *    by Jim Farley and William Crawford 
 *    with Prakash Malani, John G. Norman, and Justin Gehtland. 
 *    Copyright 2006 O'Reilly Media, Inc., 0-596-10142-2."
 *  
 *  If you feel your use of code examples falls outside fair use or the 
 *  permission given above, feel free to contact us at 
 *  permissions@oreilly.com.
 */

import java.util.Iterator;
import java.util.LinkedList;
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 com.oreilly.jent.struts.library.model.Book;

public class AdminBooksSetupAction extends LibraryBaseAction {

  public ActionForward execute(ActionMapping mapping, ActionForm form,
      HttpServletRequest request, HttpServletResponse response)
      throws Exception {
    AdminBooksActionForm adminBooksForm = (AdminBooksActionForm) form;
    // Iterate through all of the books and make a List of all
    // of the books that are checked out.
    List bookList = getLibrary().getBookList();
    List checkedOutBookTrackingIDs = new LinkedList();
    Iterator i = bookList.iterator();
    while (i.hasNext()) {
      Book book = (Book) i.next();
      if (book != null) {
        if (book.isCheckedOut()) {
          checkedOutBookTrackingIDs.add(book.getTrackingID());
        }
      }
    }
    // Now use the List of checked out book to create an array
    // that can be used to initialized the array of "picks" in
    // the AdminBooksActionForm
    adminBooksForm.setPicks((String[]) checkedOutBookTrackingIDs
        .toArray(new String[] {}));
    return mapping.findForward("adminBooksView");
  }
}