/*
* uDig - User Friendly Desktop Internet GIS client
* http://udig.refractions.net
* (C) 2004, 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.catalog.internal.wfs;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import org.locationtech.udig.catalog.IGeoResource;
import org.locationtech.udig.catalog.IGeoResourceInfo;
import org.locationtech.udig.catalog.IService;
import org.eclipse.core.runtime.IProgressMonitor;
import org.geotools.data.FeatureStore;
import org.geotools.data.simple.SimpleFeatureSource;
import org.geotools.data.simple.SimpleFeatureStore;
import org.geotools.data.wfs.WFSDataStore;
/**
* Access a feature type in a wfs.
*
* @author David Zwiers, Refractions Research
* @since 0.6
*/
public class WFSGeoResourceImpl extends IGeoResource {
WFSServiceImpl parent;
String typename = null;
private URL identifier;
private WFSGeoResourceImpl() {/* not for use */
}
/**
* Construct <code>WFSGeoResourceImpl</code>.
*
* @param parent
* @param typename
*/
public WFSGeoResourceImpl( WFSServiceImpl parent, String typename ) {
this.service = parent;
this.parent = parent;
this.typename = typename;
try {
identifier = new URL(parent.getIdentifier().toString() + "#" + typename); //$NON-NLS-1$
} catch (MalformedURLException e) {
identifier = parent.getIdentifier();
}
}
public URL getIdentifier() {
return identifier;
}
/*
* @see org.locationtech.udig.catalog.IGeoResource#getStatus()
*/
public Status getStatus() {
return parent.getStatus();
}
/*
* @see org.locationtech.udig.catalog.IGeoResource#getStatusMessage()
*/
public Throwable getMessage() {
return parent.getMessage();
}
/*
* Required adaptions: <ul> <li>IGeoResourceInfo.class <li>IService.class </ul>
* @see org.locationtech.udig.catalog.IResolve#resolve(java.lang.Class,
* org.eclipse.core.runtime.IProgressMonitor)
*/
public <T> T resolve( Class<T> adaptee, IProgressMonitor monitor ) throws IOException {
if (adaptee == null){
return null;
}
if (adaptee.isAssignableFrom(WFSDataStore.class)){
return parent.resolve(adaptee, monitor);
}
if (adaptee.isAssignableFrom(IGeoResource.class)){
return adaptee.cast(this);
}
if (adaptee.isAssignableFrom(IGeoResourceInfo.class)){
return adaptee.cast(createInfo(monitor));
}
if (adaptee.isAssignableFrom(SimpleFeatureSource.class)) {
WFSDataStore wfs = parent.getDS(monitor);
SimpleFeatureSource featureSource = wfs.getFeatureSource(typename);
return adaptee.cast(featureSource);
}
if (adaptee.isAssignableFrom(FeatureStore.class)) {
WFSDataStore wfs = parent.getDS(monitor);
SimpleFeatureSource featureSource = wfs.getFeatureSource(typename);
if( featureSource instanceof FeatureStore){
return adaptee.cast(featureSource);
}
else {
return null; // write access not available
}
}
return super.resolve(adaptee, monitor);
}
/*
* @see org.locationtech.udig.catalog.IResolve#canResolve(java.lang.Class)
*/
public <T> boolean canResolve( Class<T> adaptee ) {
if (adaptee == null){
return false;
}
if (adaptee.isAssignableFrom(SimpleFeatureSource.class)){
return true;
}
if (adaptee.isAssignableFrom(SimpleFeatureStore.class)) {
if (info != null) {
// if info is known we can check if we are writable
WFSGeoResourceInfo wfsInfo = (WFSGeoResourceInfo) info;
return wfsInfo.isWritable();
}
if( service.getID().toString().indexOf("1.1.0") != -1){
return false; // 1.1.0 not writable yet
}
else {
return true;
}
}
return (adaptee.isAssignableFrom(IGeoResourceInfo.class)
|| adaptee.isAssignableFrom(WFSDataStore.class) || adaptee
.isAssignableFrom(IService.class))
|| super.canResolve(adaptee);
}
@Override
public WFSGeoResourceInfo getInfo( IProgressMonitor monitor ) throws IOException {
return (WFSGeoResourceInfo) super.getInfo(monitor);
}
protected WFSGeoResourceInfo createInfo( IProgressMonitor monitor ) throws IOException {
if (getStatus() == Status.BROKEN) {
return null; // could not connect
}
parent.rLock.lock();
try {
return new WFSGeoResourceInfo(this);
} finally {
parent.rLock.unlock();
}
}
}