/* (c) 2014 - 2016 Open Source Geospatial Foundation - all rights reserved
* (c) 2001 - 2013 OpenPlans
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.geoserver.gwc.web.gridset;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.logging.Level;
import org.apache.wicket.AttributeModifier;
import org.apache.wicket.Component;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.AjaxLink;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.link.BookmarkablePageLink;
import org.apache.wicket.markup.html.panel.Fragment;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;
import org.apache.wicket.model.ResourceModel;
import org.geoserver.gwc.GWC;
import org.geoserver.web.GeoServerSecuredPage;
import org.geoserver.web.data.store.StorePanel;
import org.geoserver.web.wicket.GeoServerDialog;
import org.geoserver.web.wicket.GeoServerTablePanel;
import org.geoserver.web.wicket.ParamResourceModel;
import org.geoserver.web.wicket.SimpleBookmarkableLink;
import org.geowebcache.diskquota.storage.Quota;
import org.geowebcache.grid.GridSet;
/**
* Page listing all the available GridSets, following the usual filter/sort/page approach and
* providing ways to bulk delete gridsets and to add new ones.
* <p>
* <!-- Implementation detail:
* <p>
* <ul>
* <li> {@link GridSetListTablePanel} is the table of avaiable gridsets
* <li>uses a {@link GridSetTableProvider} to get the current gridsets and table properties
* <li>which in turn uses a {@link GridSetDetachableModel} to get each gridset out of
* {@link GWC#getGridSetBroker()}
* </ul>
*
* -->
*
* @see StorePanel
*/
@SuppressWarnings("serial")
public class GridSetsPage extends GeoServerSecuredPage {
private GridSetsPanel table;
private SelectionRemovalLink removal;
private GeoServerDialog dialog;
private class GridSetsPanel extends GridSetListTablePanel {
public GridSetsPanel(String id, GridSetTableProvider provider) {
super(id, provider, true);
}
@Override
protected void onSelectionUpdate(AjaxRequestTarget target) {
removal.setEnabled(table.getSelection().size() > 0);
target.add(removal);
}
@Override
protected Component nameLink(final String id, final GridSet gridSet) {
final String gridSetName = gridSet.getName();
final boolean isInternal = GWC.get().getGridSetBroker().getEmbeddedNames()
.contains(gridSetName);
SimpleBookmarkableLink link;
link = new SimpleBookmarkableLink(id, GridSetEditPage.class, new Model<String>(
gridSetName), AbstractGridSetPage.GRIDSET_NAME, gridSetName);
if (isInternal) {
link.add(new AttributeModifier("style", new Model<String>(
"font-style: italic;")));
link.add(new AttributeModifier("title", new ResourceModel(
"nameLink.titleInternalGridSet")));
} else {
link.add(new AttributeModifier("title", new ResourceModel("nameLink.title")));
}
return link;
}
@Override
protected Component actionLink(final String id, String gridSetName) {
SimpleBookmarkableLink link;
link = new SimpleBookmarkableLink(id, GridSetNewPage.class, new ResourceModel(
"templateLink"), AbstractGridSetPage.GRIDSET_TEMPLATE_NAME, gridSetName);
link.add(new AttributeModifier("title", new ResourceModel("templateLink.title")));
return link;
}
}
public GridSetsPage() {
GridSetTableProvider provider = new GridSetTableProvider() {
@Override
public List<GridSet> getItems() {
return GWC.get().getGridSetBroker().getGridSets();
}
};
// the table, and wire up selection change
table = new GridSetsPanel("table", provider);
table.setOutputMarkupId(true);
add(table);
// the confirm dialog
add(dialog = new GeoServerDialog("dialog"));
setHeaderPanel(headerPanel());
}
@SuppressWarnings({ "rawtypes", "unchecked" })
protected Component headerPanel() {
Fragment header = new Fragment(HEADER_PANEL, "header", this);
// the add button
BookmarkablePageLink newLink = new BookmarkablePageLink("addNew", GridSetNewPage.class);
newLink.add(new AttributeModifier("title", new ResourceModel("addNew.title")));
header.add(newLink);
// the removal button
header.add(removal = new SelectionRemovalLink("removeSelected", table, dialog));
removal.setOutputMarkupId(true);
removal.setEnabled(false);
removal.add(new AttributeModifier("title", new ResourceModel("removalLink.title")));
return header;
}
private class SelectionRemovalLink extends AjaxLink<GridSet> {
GeoServerTablePanel<GridSet> gridsets;
GeoServerDialog dialog;
public SelectionRemovalLink(final String id, final GeoServerTablePanel<GridSet> gridsets,
final GeoServerDialog dialog) {
super(id);
this.gridsets = gridsets;
this.dialog = dialog;
}
@Override
public void onClick(AjaxRequestTarget target) {
// see if the user selected anything
List<GridSet> selection = gridsets.getSelection();
if (selection.size() == 0) {
return;
}
final Set<String> selectedGridsetIds = new HashSet<String>();
for (GridSet gset : selection) {
selectedGridsetIds.add(gset.getName());
}
dialog.setTitle(new ParamResourceModel("confirmRemoval", this));
// if there is something to cancel, let's warn the user about what
// could go wrong, and if the user accepts, let's delete what's needed
dialog.showOkCancel(target, new GeoServerDialog.DialogDelegate() {
@Override
protected Component getContents(final String id) {
final GWC gwc = GWC.get();
final int count = selectedGridsetIds.size();
Quota totalQuota = new Quota();
for (String gridsetId : selectedGridsetIds) {
Quota usedQuotaByGridSet = gwc.getUsedQuotaByGridSet(gridsetId);
if (usedQuotaByGridSet != null) {
totalQuota.add(usedQuotaByGridSet);
}
}
final Set<String> affectedLayers = gwc
.getLayerNamesForGridSets(selectedGridsetIds);
IModel<String> confirmModel = new ParamResourceModel(
"GridSetsPage.confirmGridsetsDelete", GridSetsPage.this, String
.valueOf(count), String.valueOf(affectedLayers.size()),
totalQuota.toNiceString());
Label confirmMessage = new Label(id, confirmModel);
confirmMessage.setEscapeModelStrings(false);// allow some html markup
return confirmMessage;
}
@Override
protected boolean onSubmit(AjaxRequestTarget target, Component contents) {
// cascade delete the whole selection
GWC gwc = GWC.get();
try {
gwc.removeGridSets(selectedGridsetIds);
} catch (Exception e) {
getPage().error(e.getMessage());
LOGGER.log(Level.WARNING, e.getMessage(), e);
}
gridsets.clearSelection();
return true;
}
@Override
public void onClose(AjaxRequestTarget target) {
// if the selection has been cleared out it's sign a deletion
// occurred, so refresh the table
if (gridsets.getSelection().size() == 0) {
setEnabled(false);
target.add(SelectionRemovalLink.this);
target.add(gridsets);
}
}
});
}
}
}