/*
* 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.examples.debug;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.apache.wicket.AccessStackPageMap;
import org.apache.wicket.IPageMap;
import org.apache.wicket.Page;
import org.apache.wicket.PageParameters;
import org.apache.wicket.AccessStackPageMap.Access;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.link.BookmarkablePageLink;
import org.apache.wicket.markup.html.link.Link;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.session.pagemap.IPageMapEntry;
import org.apache.wicket.util.collections.ArrayListStack;
import org.apache.wicket.util.lang.Bytes;
import org.apache.wicket.util.lang.Objects;
/**
* A Wicket panel that shows interesting information about a given Wicket pagemap.
*
* @author Jonathan Locke
*/
public final class PageMapView extends Panel
{
private static final long serialVersionUID = 1L;
/**
* Constructor.
*
* @param id
* The component id
* @param pageMap
* Page map to show
*/
public PageMapView(final String id, final IPageMap pageMap)
{
super(id);
// Basic attributes
add(new Label("name", pageMap.getName() == null ? "null" : pageMap.getName()));
add(new Label("size", "" + Bytes.bytes(pageMap.getSizeInBytes())));
// Get entry accesses
// Get entry accesses
final ArrayListStack accessStack;
if (pageMap instanceof AccessStackPageMap)
{
accessStack = ((AccessStackPageMap)pageMap).getAccessStack();
}
else
{
accessStack = new ArrayListStack();
}
final List reversedAccessStack = new ArrayList();
reversedAccessStack.addAll(accessStack);
Collections.reverse(reversedAccessStack);
// Create the table containing the list the components
add(new ListView("accesses", reversedAccessStack)
{
private static final long serialVersionUID = 1L;
/**
* Populate the table with Wicket elements
*/
protected void populateItem(final ListItem listItem)
{
final Access access = (Access)listItem.getModelObject();
IPageMapEntry entry = pageMap.getEntry(access.getId());
PageParameters parameters = new PageParameters();
parameters.put("pageId", "" + entry.getNumericId());
Link link = new BookmarkablePageLink("link", InspectorPage.class, parameters);
link.add(new Label("id", "" + entry.getNumericId()));
listItem.add(link);
listItem.add(new Label("class", "" + entry.getClass().getName()));
long size;
int versions;
if (entry instanceof Page)
{
Page page = (Page)entry;
page.detachModels();
size = page.getSizeInBytes();
versions = page.getVersions();
}
else
{
size = Objects.sizeof(entry);
versions = 0;
}
listItem.add(new Label("access", "" + (accessStack.size() - listItem.getIndex())));
listItem.add(new Label("version", "" + access.getVersion()));
listItem.add(new Label("versions", "" + versions));
listItem.add(new Label("size", size == -1 ? "[Unknown]" : "" + Bytes.bytes(size)));
}
});
}
}