/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation", "Tapestry"
* must not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* or "Tapestry", nor may "Apache" or "Tapestry" appear in their
* name, without prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE TAPESTRY CONTRIBUTOR COMMUNITY
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.tapestry.vlib.pages;
import java.rmi.RemoteException;
import java.util.HashMap;
import java.util.Map;
import javax.ejb.CreateException;
import org.apache.tapestry.IRequestCycle;
import org.apache.tapestry.Tapestry;
import org.apache.tapestry.event.PageEvent;
import org.apache.tapestry.event.PageRenderListener;
import org.apache.tapestry.vlib.Protected;
import org.apache.tapestry.vlib.VirtualLibraryEngine;
import org.apache.tapestry.vlib.Visit;
import org.apache.tapestry.vlib.ejb.IOperations;
/**
* Collects information for a new book.
*
* @author Howard Lewis Ship
* @version $Id: NewBook.java,v 1.10 2003/05/28 13:41:42 hlship Exp $
*
**/
public abstract class NewBook extends Protected implements PageRenderListener
{
public abstract Map getAttributes();
public abstract void setAttributes(Map attributes);
public abstract String getPublisherName();
public void addBook(IRequestCycle cycle)
{
Map attributes = getAttributes();
Integer publisherId = (Integer) attributes.get("publisherId");
String publisherName = getPublisherName();
if (publisherId == null && Tapestry.isNull(publisherName))
{
setErrorField("inputPublisherName", getMessage("need-publisher-name"));
return;
}
if (publisherId != null && !Tapestry.isNull(publisherName))
{
setErrorField("inputPublisherName", getMessage("leave-publisher-name-empty"));
return;
}
if (isInError())
return;
Visit visit = (Visit) getVisit();
Integer userId = visit.getUserId();
VirtualLibraryEngine vengine = (VirtualLibraryEngine)cycle.getEngine();
attributes.put("ownerId", userId);
attributes.put("holderId", userId);
int i = 0;
while (true)
{
try
{
IOperations operations = vengine.getOperations();
if (publisherId != null)
operations.addBook(attributes);
else
{
operations.addBook(attributes, publisherName);
// Clear the app's cache of info; in this case, known publishers.
vengine.clearCache();
}
break;
}
catch (CreateException ex)
{
setError("Error adding book: " + ex.getMessage());
return;
}
catch (RemoteException ex)
{
vengine.rmiFailure("Remote exception adding new book.", ex, i++);
}
}
// Success. First, update the message property of the return page.
MyLibrary myLibrary = (MyLibrary) cycle.getPage("MyLibrary");
myLibrary.setMessage(format("added-book", attributes.get("title")));
myLibrary.activate(cycle);
}
public void pageBeginRender(PageEvent event)
{
if (getAttributes() == null)
{
Map attributes = new HashMap();
// Setup defaults for the new book.
attributes.put("lendable", Boolean.TRUE);
setAttributes(attributes);
}
}
}