91 lines
3.2 KiB
Java
91 lines
3.2 KiB
Java
/*
|
|
* 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.
|
|
*
|
|
* $Header:$
|
|
*/
|
|
package org.apache.beehive.netui.pageflow.internal;
|
|
|
|
import org.apache.beehive.netui.pageflow.handler.StorageHandler;
|
|
import org.apache.beehive.netui.pageflow.RequestContext;
|
|
|
|
import javax.servlet.http.HttpServletRequest;
|
|
import javax.servlet.http.HttpSession;
|
|
import javax.servlet.ServletContext;
|
|
import java.util.Enumeration;
|
|
import java.util.Collections;
|
|
|
|
/**
|
|
* This storage handler simply puts/gets attributes in the session. It does not do anything to support multiple
|
|
* concurrent forwarded requests that are simultaneously modifying session data.
|
|
*
|
|
* @see DeferredSessionStorageHandler
|
|
*/
|
|
public class SimpleSessionStorageHandler
|
|
extends DefaultHandler
|
|
implements StorageHandler
|
|
{
|
|
public SimpleSessionStorageHandler( ServletContext servletContext )
|
|
{
|
|
init( null, null, servletContext );
|
|
}
|
|
|
|
public void setAttribute( RequestContext context, String attributeName, Object value )
|
|
{
|
|
( ( HttpServletRequest ) context.getRequest() ).getSession().setAttribute( attributeName, value );
|
|
}
|
|
|
|
public void removeAttribute( RequestContext context, String attributeName )
|
|
{
|
|
HttpSession session = ( ( HttpServletRequest ) context.getRequest() ).getSession( false );
|
|
if ( session != null ) session.removeAttribute( attributeName );
|
|
}
|
|
|
|
public Object getAttribute( RequestContext context, String attributeName )
|
|
{
|
|
HttpSession session = ( ( HttpServletRequest ) context.getRequest() ).getSession( false );
|
|
return session != null ? session.getAttribute( attributeName ) : null;
|
|
}
|
|
|
|
public void ensureFailover( RequestContext context, String attributeName, Object value )
|
|
{
|
|
HttpServletRequest request = ( HttpServletRequest ) context.getRequest();
|
|
AdapterManager.getServletContainerAdapter( getServletContext() ).ensureFailover( attributeName, value, request );
|
|
}
|
|
|
|
public boolean allowBindingEvent( Object event )
|
|
{
|
|
return true;
|
|
}
|
|
|
|
public void applyChanges(RequestContext context)
|
|
{
|
|
}
|
|
|
|
public void dropChanges(RequestContext context)
|
|
{
|
|
}
|
|
|
|
public Enumeration getAttributeNames(RequestContext context)
|
|
{
|
|
HttpSession session = ((HttpServletRequest) context.getRequest()).getSession(false);
|
|
if (session != null) {
|
|
return session.getAttributeNames();
|
|
} else {
|
|
return Collections.enumeration(Collections.emptyList());
|
|
}
|
|
}
|
|
}
|