/* (c) 2014 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.cluster.impl.handlers.catalog;
import java.lang.reflect.InvocationTargetException;
import java.util.logging.Level;
import org.geoserver.catalog.Catalog;
import org.geoserver.catalog.CatalogInfo;
import org.geoserver.catalog.LayerGroupInfo;
import org.geoserver.catalog.LayerInfo;
import org.geoserver.catalog.MapInfo;
import org.geoserver.catalog.NamespaceInfo;
import org.geoserver.catalog.ResourceInfo;
import org.geoserver.catalog.StoreInfo;
import org.geoserver.catalog.StyleInfo;
import org.geoserver.catalog.WorkspaceInfo;
import org.geoserver.catalog.event.CatalogAddEvent;
import org.geoserver.catalog.event.CatalogEvent;
import org.geoserver.catalog.impl.ModificationProxy;
import org.geoserver.cluster.events.ToggleSwitch;
import com.thoughtworks.xstream.XStream;
/**
*
* Handler for CatalogAddEvent.
*
* @author Carlo Cancellieri - carlo.cancellieri@geo-solutions.it
*
*/
public class JMSCatalogAddEventHandler extends JMSCatalogEventHandler {
private final Catalog catalog;
private final ToggleSwitch producer;
public JMSCatalogAddEventHandler(Catalog catalog, XStream xstream,
Class clazz, ToggleSwitch producer) {
super(xstream, clazz);
this.catalog = catalog;
this.producer = producer;
}
@Override
public boolean synchronize(CatalogEvent event) throws Exception {
if (event == null) {
throw new IllegalArgumentException("Incoming object is null");
}
try {
if (event instanceof CatalogAddEvent) {
final CatalogAddEvent addEv = ((CatalogAddEvent) event);
// get the source from the incoming event
final CatalogInfo info = addEv.getSource();
// disable the producer to avoid recursion
producer.disable();
// add the incoming CatalogInfo to the local catalog
JMSCatalogAddEventHandler.add(catalog, info);
} else {
// incoming object not recognized
if (LOGGER.isLoggable(java.util.logging.Level.SEVERE))
LOGGER.severe("Unrecognized event type");
return false;
}
} catch (Exception e) {
if (LOGGER.isLoggable(java.util.logging.Level.SEVERE))
LOGGER.severe(this.getClass()+" is unable to synchronize the incoming event: "+event);
throw e;
} finally {
// re enable the producer
producer.enable();
}
return true;
}
private static void add(final Catalog catalog, CatalogInfo info)
throws IllegalAccessException, InvocationTargetException {
if (info instanceof LayerGroupInfo) {
final LayerGroupInfo deserObject = CatalogUtils.localizeLayerGroup(
(LayerGroupInfo) info, catalog);
catalog.add(ModificationProxy.unwrap(deserObject));
} else if (info instanceof LayerInfo) {
final LayerInfo layer = CatalogUtils.localizeLayer(
(LayerInfo) info, catalog);
catalog.add(ModificationProxy.unwrap(layer));
} else if (info instanceof MapInfo) {
final MapInfo localObject = CatalogUtils.localizeMapInfo(
(MapInfo) info, catalog);
catalog.add(ModificationProxy.unwrap(localObject));
} else if (info instanceof NamespaceInfo) {
final NamespaceInfo namespace = CatalogUtils.localizeNamespace(
(NamespaceInfo) info, catalog);
catalog.add(ModificationProxy.unwrap(namespace));
} else if (info instanceof StoreInfo) {
StoreInfo store = CatalogUtils.localizeStore((StoreInfo) info,
catalog);
catalog.add(ModificationProxy.unwrap(store));
} else if (info instanceof ResourceInfo) {
final ResourceInfo resource = CatalogUtils.localizeResource(
(ResourceInfo) info, catalog);
catalog.add(ModificationProxy.unwrap(resource));
} else if (info instanceof StyleInfo) {
final StyleInfo deserializedObject = CatalogUtils.localizeStyle(
(StyleInfo) info, catalog);
catalog.add(ModificationProxy.unwrap(deserializedObject));
} else if (info instanceof WorkspaceInfo) {
final WorkspaceInfo workspace = CatalogUtils.localizeWorkspace(
(WorkspaceInfo) info, catalog);
catalog.add(ModificationProxy.unwrap(workspace));
} else if (info instanceof CatalogInfo) {
// TODO may we don't want to send this empty message!
// TODO check the producer
// DO NOTHING
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.severe("info - ID: " + info.getId() + " toString: "
+ info.toString());
}
} else {
throw new IllegalArgumentException("Bad incoming object: "
+ info.getClass());
}
}
}