/*
* 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.wicket.devutils.debugbar;
import org.apache.wicket.Component;
import org.apache.wicket.Page;
import org.apache.wicket.Session;
import org.apache.wicket.devutils.inspector.LiveSessionsPage;
import org.apache.wicket.devutils.inspector.SessionSizeModel;
import org.apache.wicket.model.AbstractReadOnlyModel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.request.resource.PackageResourceReference;
import org.apache.wicket.request.resource.ResourceReference;
import org.apache.wicket.util.lang.Bytes;
/**
* A panel for the debug bar that shows the session size and links to the page that shows more
* information about sessions.
*
* @author Jeremy Thomerson <jthomerson@apache.org>
*/
public class SessionSizeDebugPanel extends StandardDebugPanel
{
private static final long serialVersionUID = 1L;
/** */
public static final IDebugBarContributor DEBUG_BAR_CONTRIB = new IDebugBarContributor()
{
private static final long serialVersionUID = 1L;
@Override
public Component createComponent(final String id, final DebugBar debugBar)
{
return new SessionSizeDebugPanel(id);
}
};
/**
* Construct.
*
* @param id
*/
public SessionSizeDebugPanel(final String id)
{
super(id);
}
@Override
protected Class<? extends Page> getLinkPageClass()
{
return LiveSessionsPage.class;
}
@Override
protected ResourceReference getImageResourceReference()
{
// TODO: need better image for this:
return new PackageResourceReference(SessionSizeDebugPanel.class, "harddrive.png");
}
@Override
protected IModel<String> getDataModel()
{
return new AbstractReadOnlyModel<String>()
{
private static final long serialVersionUID = 1L;
private final IModel<Bytes> size = new SessionSizeModel(Session.get());
@Override
public String getObject()
{
Bytes sessionSizeInBytes = size.getObject();
String sessionSizeAsString = sessionSizeInBytes != null
? sessionSizeInBytes.toString() : "unknown";
return "Session: " + sessionSizeAsString;
}
@Override
public void detach()
{
super.detach();
size.detach();
}
};
}
}