/*
* Copyright 2005-2006 the original author or authors.
*
* Licensed 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.strecks.injection.handler;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.strecks.constants.InfrastructureKeys;
import org.strecks.context.ActionContext;
import org.strecks.util.Assert;
/**
* Injection handler to find redirect parameter from the <code>HttpServletRequest</code> by using the
* <code>HttpServletRequest.getAttribute(InfrastructureKeys.REDIRECT_PARAMETERS)</code> method. No type conversion is
* necessary
* @author Phil Zoio
*/
public class RedirectParameterInjectionHandler implements InjectionHandler
{
private String parameterName;
public RedirectParameterInjectionHandler(String parameterName)
{
super();
Assert.notNull(parameterName);
this.parameterName = parameterName;
}
public String getParameterName()
{
return parameterName;
}
public Object getValue(ActionContext injectionContext)
{
HttpServletRequest request = injectionContext.getRequest();
HttpSession session = request.getSession(false);
if (session == null)
{
return null;
}
else
{
Map map = (Map) session.getAttribute(InfrastructureKeys.REDIRECT_PARAMETERS);
if (map != null)
{
return map.get(parameterName);
}
return null;
}
}
}