/* uDig - User Friendly Desktop Internet GIS client
* http://udig.refractions.net
* (C) 2012, Refractions Research Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* (http://www.eclipse.org/legal/epl-v10.html), and the Refractions BSD
* License v1.0 (http://udig.refractions.net/files/bsd3-v10.html).
*/
package org.locationtech.udig.document.source;
import java.io.IOException;
import org.locationtech.udig.catalog.IGeoResource;
import org.locationtech.udig.catalog.IResolve;
import org.locationtech.udig.catalog.IResolveAdapterFactory;
import org.locationtech.udig.catalog.document.IHotlinkSource;
import org.locationtech.udig.document.ui.DocumentPropertyPage;
import org.eclipse.core.runtime.IProgressMonitor;
/**
* Folds in BasicHotlink implementation for any IGeoResource that lists its hotlink attributes as
* part of its {@link IGeoResource#getPersistentProperties()}.
* <p>
* Contains utility methods to help both {@link BasicHotlinkSource} and {@link DocumentPropertyPage}
* extract descriptors from a IGeoResource.
*
* @author Jody Garnett (LISAsoft)
* @since 1.3.2
*/
public class BasicHotlinkResolveFactory implements IResolveAdapterFactory {
/**
* {@link IGeoResource#getPersistentProperties()} key used to record hotlink descriptor list.
*/
final static String HOTLINK = "hotlink"; //$NON-NLS-1$
@Override
public boolean canAdapt(IResolve resolve, Class<? extends Object> adapter) {
if (resolve instanceof IGeoResource) {
if (adapter.isAssignableFrom(IHotlinkSource.class)) {
return true;
}
}
return false;
}
@Override
public <T> T adapt(IResolve resolve, Class<T> adapter, IProgressMonitor monitor)
throws IOException {
if (resolve instanceof IGeoResource) {
final IGeoResource resource = (IGeoResource) resolve;
if (adapter.isAssignableFrom(IHotlinkSource.class)) {
final IHotlinkSource source = new BasicHotlinkSource(resource);
return adapter.cast(source);
}
}
return null;
}
}