/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org. All rights reserved.
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.geoserver.web.data.importer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.geoserver.catalog.CatalogBuilder;
import org.geoserver.catalog.ResourceInfo;
import org.geoserver.catalog.StoreInfo;
import org.geoserver.catalog.WMSStoreInfo;
import org.geoserver.web.data.importer.LayerResource.LayerStatus;
import org.geoserver.web.wicket.GeoServerDataProvider;
import org.geotools.data.ows.Layer;
import org.geotools.feature.NameImpl;
/**
* Provides a list of resources for a specific data store
* @author Andrea Aime - OpenGeo
*
*/
@SuppressWarnings("serial")
public class WMSLayerProvider extends GeoServerDataProvider<LayerResource> {
public static final Property<LayerResource> STATUS = new BeanProperty<LayerResource>("status", "status");
public static final Property<LayerResource> NAME = new BeanProperty<LayerResource>("name", "localName");
public static final Property<LayerResource> ACTION = new PropertyPlaceholder<LayerResource>("action");
public static final List<Property<LayerResource>> PROPERTIES = Arrays.asList(NAME, ACTION, STATUS);
String storeId;
List<LayerResource> items;
@Override
protected List<LayerResource> getItems() {
if(items == null) {
// return an empty list in case we still don't know about the store
if(storeId == null)
return new ArrayList<LayerResource>();
// else, grab the resource list
try {
List<LayerResource> result;
StoreInfo store = getCatalog().getStore(storeId, StoreInfo.class);
Map<String, LayerResource> resources = new HashMap<String, LayerResource>();
WMSStoreInfo wmsInfo = (WMSStoreInfo) store;
CatalogBuilder builder = new CatalogBuilder(getCatalog());
builder.setStore(store);
List<Layer> layers = wmsInfo.getWebMapServer(null).getCapabilities().getLayerList();
for(Layer l : layers) {
if(l.getName() == null) {
continue;
}
resources.put(l.getName(), new LayerResource(new NameImpl(l.getName())));
}
// lookup all configured layers, mark them as published in the resources
List<ResourceInfo> configuredTypes = getCatalog().getResourcesByStore(store, ResourceInfo.class);
for (ResourceInfo type : configuredTypes) {
// compare with native name, which is what the DataStore provides through getNames()
// above
LayerResource resource = resources.get(type.getNativeName());
if(resource != null)
resource.setStatus(LayerStatus.PUBLISHED);
}
result = new ArrayList<LayerResource>(resources.values());
// return by natural order
Collections.sort(result);
items = result;
} catch(Exception e) {
throw new RuntimeException("Could not list layers for this store, "
+ "an error occurred retrieving them: " + e.getMessage(), e);
}
}
return items;
}
public void updateLayerOrder() {
Collections.sort(items);
}
public String getStoreId() {
return storeId;
}
public void setStoreId(String storeId) {
this.storeId = storeId;
}
@Override
protected List<Property<LayerResource>> getProperties() {
return PROPERTIES;
}
}