/*
* $Id: RegistrationBacking.java 471754 2006-11-06 14:55:09Z husted $
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.struts.webapp.example2;
import java.io.IOException;
import javax.faces.FacesException;
import javax.faces.context.FacesContext;
/**
* <p>Backing bean for the <code>registration.jsp</code> page.</p>
*/
public class RegistrationBacking {
// -------------------------------------------------------------- Properties
// These methods exist to work around a bug in the PFD version of the
// rendering for <h:data_table> that disallows constant values on
// per-row command and output components
public String getDeleteLabel() { return ("Delete"); }
public String getEditLabel() { return ("Edit"); }
// ----------------------------------------------------------------- Actions
/**
* <p>Create a new subscription.</p>
*/
public String create() {
FacesContext context = FacesContext.getCurrentInstance();
StringBuffer url = base(context);
url.append("?action=Create");
url.append("&username=");
User user = (User)
context.getExternalContext().getSessionMap().get("user");
url.append(user.getUsername());
forward(context, url.toString());
return (null);
}
/**
* <p>Delete an existing subscription.</p>
*/
public String delete() {
FacesContext context = FacesContext.getCurrentInstance();
StringBuffer url = base(context);
url.append("?action=Delete");
url.append("&username=");
User user = (User)
context.getExternalContext().getSessionMap().get("user");
url.append(user.getUsername());
url.append("&host=");
Subscription subscription = (Subscription)
context.getExternalContext().getRequestMap().get("subscription");
url.append(subscription.getHost());
forward(context, url.toString());
return (null);
}
/**
* <p>Edit an existing subscription.</p>
*/
public String edit() {
FacesContext context = FacesContext.getCurrentInstance();
StringBuffer url = base(context);
url.append("?action=Edit");
url.append("&username=");
User user = (User)
context.getExternalContext().getSessionMap().get("user");
url.append(user.getUsername());
url.append("&host=");
Subscription subscription = (Subscription)
context.getExternalContext().getRequestMap().get("subscription");
url.append(subscription.getHost());
forward(context, url.toString());
return (null);
}
// --------------------------------------------------------- Private Methods
/**
* <p>Return the context relative base URL for the "edit subscriptions"
* action.</p>
*
* @param context <code>FacesContext</code> for the current request
*/
private StringBuffer base(FacesContext context) {
// FIXME - assumes extension mapping for Struts
return (new StringBuffer("/editSubscription.do"));
}
/**
* <p>Forward to the specified URL and mark this response as having
* been completed.</p>
*
* @param context <code>FacesContext</code> for the current request
* @param url Context-relative URL to forward to
*
* @exception FacesException if any error occurs
*/
private void forward(FacesContext context, String url) {
try {
context.getExternalContext().dispatch(url);
} catch (IOException e) {
throw new FacesException(e);
} finally {
context.responseComplete();
}
}
}