/******************************************************************************
* JBoss, a division of Red Hat *
* Copyright 2006, Red Hat Middleware, LLC, and individual *
* contributors as indicated by the @authors tag. See the *
* copyright.txt in the distribution for a full listing of *
* individual contributors. *
* *
* This is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation; either version 2.1 of *
* the License, or (at your option) any later version. *
* *
* This software is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this software; if not, write to the Free *
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA *
* 02110-1301 USA, or see the FSF site: http://www.fsf.org. *
******************************************************************************/
package org.gatein.pc.portlet.impl.jsr168;
import javax.portlet.PortletMode;
import javax.portlet.PortletRequest;
import javax.portlet.PortletResponse;
import javax.portlet.WindowState;
import javax.portlet.filter.PortletRequestWrapper;
import javax.portlet.filter.PortletResponseWrapper;
/**
* @author <a href="mailto:julien@jboss.org">Julien Viet</a>
* @version $Revision: 1.1 $
*/
public class PortletUtils
{
public static final String PREFIX = "jbpns";
public static final String SUFFIX = "snpbj";
private static final String SLASH = "/";
/**
* Creates a <code>WindowState</code> object based on the specified name.
*
* @param windowStateName the name of the window state
* @return one of the standard WindowStates if the specified name matches one of them or a new WindowState.
* @see javax.portlet.WindowState
*/
public static WindowState decodeWindowState(String windowStateName)
{
if (WindowState.NORMAL.toString().equalsIgnoreCase(windowStateName))
{
return WindowState.NORMAL;
}
else if (WindowState.MINIMIZED.toString().equalsIgnoreCase(windowStateName))
{
return WindowState.MINIMIZED;
}
else if (WindowState.MAXIMIZED.toString().equalsIgnoreCase(windowStateName))
{
return WindowState.MAXIMIZED;
}
else
{
return new WindowState(windowStateName);
}
}
/**
* Creates a <code>PortletMode</code> object based on the specified name.
*
* @param portletModeName the name of the portlet mode
* @return one of the standard PortletModes if the specified name matches one of them or a new PortletMode.
* @see javax.portlet.PortletMode
*/
public static PortletMode decodePortletMode(String portletModeName)
{
if (PortletMode.EDIT.toString().equalsIgnoreCase(portletModeName))
{
return PortletMode.EDIT;
}
else if (PortletMode.HELP.toString().equalsIgnoreCase(portletModeName))
{
return PortletMode.HELP;
}
else if (PortletMode.VIEW.toString().equalsIgnoreCase(portletModeName))
{
return PortletMode.VIEW;
}
else
{
return new PortletMode(portletModeName);
}
}
/**
* Generates a namespace suitable for Portlet prefixing of tokens that need to be unique in an aggregated page.
*
* @param windowId the window id
* @return the namespace value
* @since 2.6
*/
public static String generateNamespaceFrom(String windowId)
{
int length = windowId.length();
StringBuffer tmp = new StringBuffer(length + 10);
for (int i = windowId.lastIndexOf(SLASH) + 1; i < length; i++)
{
char c = windowId.charAt(i);
if (((int)c >= 65 && (int)c <= 90) || ((int)c >= 97 && (int)c <= 122) || ((int)c >= 48 && (int)c <= 57) || ((int)c == 95) || (int)c == 36)
{
tmp.append(c);
}
else
{
tmp.append('_');
tmp.append(Character.forDigit((((int)c) & 0XF0) >> 4, 16));
tmp.append(Character.forDigit((((int)c) & 0X0F), 16));
}
}
return tmp.toString();
}
public static <U extends PortletRequest> U unwrap(PortletRequest wrapped, Class<U> unwrapped)
{
while (true)
{
if (wrapped instanceof PortletRequestWrapper)
{
PortletRequestWrapper wrapper = (PortletRequestWrapper)wrapped;
wrapped = wrapper.getRequest();
}
else if (unwrapped.isInstance(wrapped))
{
return unwrapped.cast(wrapped);
}
else
{
throw new IllegalArgumentException();
}
}
}
public static <U extends PortletResponse> U unwrap(PortletResponse wrapped, Class<U> unwrapped)
{
while (true)
{
if (wrapped instanceof PortletResponseWrapper)
{
PortletResponseWrapper wrapper = (PortletResponseWrapper)wrapped;
wrapped = wrapper.getResponse();
}
else if (unwrapped.isInstance(wrapped))
{
return unwrapped.cast(wrapped);
}
else
{
throw new IllegalArgumentException();
}
}
}
}