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package org.dcache.webadmin.view.panels.poolqueues;
import org.apache.wicket.core.util.resource.UrlResourceStream;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.image.Image;
import org.apache.wicket.markup.html.link.Link;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.markup.repeater.Item;
import org.apache.wicket.markup.repeater.data.GridView;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.request.resource.IResource;
import org.apache.wicket.request.resource.ResourceStreamResource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.net.URL;
import org.dcache.webadmin.controller.util.ThumbnailPanelProvider;
import org.dcache.webadmin.controller.util.ThumbnailPanelProvider.Level;
import org.dcache.webadmin.view.beans.ThumbnailPanelBean;
import static org.dcache.webadmin.controller.util.ThumbnailPanelProvider.Level.POOLS_OF_GROUP;
import static org.dcache.webadmin.controller.util.ThumbnailPanelProvider.Level.POOL_GROUPS;
/**
* Panel which displays the grid view of the thumbnail links to each pool queue
* histogram.
*/
public class PoolQueuePlotsDisplayPanel extends Panel {
private static final long serialVersionUID = 5701767178955064955L;
private static final Logger LOGGER
= LoggerFactory.getLogger(PoolQueuePlotsDisplayPanel.class);
private static final String VIEW_ID = "PoolQueuePlotsGridView";
private static final String UP_PATH
= "org/dcache/webadmin/view/pages/poolqueues/up.png";
private static final String DOWN_PATH
= "org/dcache/webadmin/view/pages/poolqueues/down.png";
enum Direction {
UP, DOWN
}
private final ThumbnailPanelProvider provider;
private final GridView<ThumbnailPanelBean> gridView;
private final Label levelTitle;
public PoolQueuePlotsDisplayPanel(String id,
ThumbnailPanelProvider provider) {
super(id);
this.provider = provider;
levelTitle = new Label("level", new PropertyModel<String>(provider,
"levelTitle"));
add(levelTitle);
gridView = createGridView();
add(gridView);
provider.refresh();
}
public void refresh() {
provider.refresh();
}
private void addDownLink(Item item, String name, Level level) {
item.add(getLabel(level, Direction.DOWN));
Link<?> link = new Link<String>("downLink") {
private static final long serialVersionUID = 8376628458228582315L;
@Override
public void onClick() {
switch (level) {
case ALL_POOLS:
provider.setLevel(POOL_GROUPS);
provider.setName(null);
break;
case POOL_GROUPS:
provider.setLevel(POOLS_OF_GROUP);
provider.setName(name);
break;
case POOLS_OF_GROUP:
default:
provider.setLevel(Level.ALL_POOLS);
provider.setName(null);
break;
}
refresh();
}
};
link.add(getImage(Direction.DOWN));
item.add(link);
}
private void addUpLink(Item item, final Level level) {
item.add(getLabel(level, Direction.UP));
Link<?> link = new Link<String>("upLink") {
private static final long serialVersionUID = -1077631840167339923L;
@Override
public void onClick() {
switch (level) {
case POOL_GROUPS:
provider.setLevel(Level.ALL_POOLS);
provider.setName(null);
break;
case POOLS_OF_GROUP:
provider.setLevel(POOL_GROUPS);
provider.setName(null);
break;
case ALL_POOLS:
default:
break;
}
refresh();
}
};
link.add(getImage(Direction.UP));
item.add(link);
}
private GridView<ThumbnailPanelBean> createGridView() {
return new GridView<ThumbnailPanelBean>(VIEW_ID, provider) {
private static final long serialVersionUID = -7245101719065647956L;
@Override
protected void onBeforeRender() {
setColumns(provider.getNumCols());
super.onBeforeRender();
}
@Override
protected void populateEmptyItem(Item item) {
addLinks(item, new ThumbnailPanelBean());
}
@Override
protected void populateItem(Item<ThumbnailPanelBean> item) {
addLinks(item, item.getModelObject());
}
private void addLinks(Item<ThumbnailPanelBean> item,
ThumbnailPanelBean bean) {
Level level = provider.getLevel();
String name = bean.getName();
addUpLink(item, level);
item.add(bean.getLink());
item.add(new Label("name", name));
addDownLink(item, name, level);
}
};
}
private Image getImage(Direction direction) {
String label;
String path;
switch (direction) {
case UP:
label = "up";
path = UP_PATH;
break;
case DOWN:
label = "down";
path = DOWN_PATH;
break;
default:
throw new IllegalArgumentException("Unknown direction "
+ direction);
}
URL url = Thread.currentThread().getContextClassLoader()
.getResource(path);
if (url == null) {
LOGGER.error("Could not find resource {}.", path);
return new Image(label, (IModel)null);
}
UrlResourceStream stream = new UrlResourceStream(url);
IResource resource = new ResourceStreamResource(stream);
return new Image(label, resource);
}
private Label getLabel(Level level, Direction direction) {
switch (direction) {
case UP:
switch (level) {
case POOL_GROUPS:
return new Label("upLinkTitle", "pool summary");
case POOLS_OF_GROUP:
return new Label("upLinkTitle", "pool groups");
case ALL_POOLS:
default:
return new Label("upLinkTitle", null);
}
case DOWN:
switch (level) {
case ALL_POOLS:
return new Label("downLinkTitle", "pool groups");
case POOL_GROUPS:
return new Label("downLinkTitle", "pools");
case POOLS_OF_GROUP:
default:
return new Label("downLinkTitle", "pool summary");
}
default:
throw new IllegalArgumentException("Unknown direction "
+ direction);
}
}
}