/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2004-2008, Open Source Geospatial Foundation (OSGeo)
* (C) 2005-2006, David Zwiers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.data.wfs.v1_0_0;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Set;
import org.geotools.data.DataUtilities;
import org.geotools.data.FeatureReader;
import org.geotools.data.Transaction;
import org.geotools.data.simple.SimpleFeatureStore;
import org.geotools.data.wfs.feature.LenientBuilder;
import org.geotools.data.wfs.feature.LenientFeatureFactory;
import org.geotools.data.wfs.v1_0_0.Action.DeleteAction;
import org.geotools.data.wfs.v1_0_0.Action.InsertAction;
import org.geotools.data.wfs.v1_0_0.Action.UpdateAction;
import org.geotools.feature.FeatureCollection;
import org.geotools.feature.FeatureIterator;
import org.geotools.feature.NameImpl;
import org.geotools.filter.identity.FeatureIdImpl;
import org.geotools.geometry.jts.ReferencedEnvelope;
import org.opengis.feature.IllegalAttributeException;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.feature.type.AttributeDescriptor;
import org.opengis.feature.type.GeometryDescriptor;
import org.opengis.feature.type.Name;
import org.opengis.filter.Filter;
import org.opengis.filter.identity.FeatureId;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import com.vividsolutions.jts.geom.Geometry;
/**
* FeatureStore used to assemble a Transaction Request (issued during commit).
* <p>
* Please note this FeatureStore does not support working on Transaction.AUTO_COMMIT.
* Instead it builds up the Transaction request in a WFSTransactionState; each call
* to addFeatures, removeFeatures etc results in a series of "Actions" being recorded.
* These actions are used to both modify the contents you are looking at prior to commit
* being called; and to construct the Transaction Request when commit() is called.
*
* @author dzwiers
*
*
*
* @source $URL$
*/
public class WFSFeatureStore extends WFSFeatureSource implements SimpleFeatureStore {
protected Transaction trans = Transaction.AUTO_COMMIT;
/**
*
* @param ds
* @param typeName
*/
public WFSFeatureStore(WFS_1_0_0_DataStore ds, String typeName) {
super(ds, typeName);
}
@SuppressWarnings({ "rawtypes", "unchecked" })
@Override
public Set getSupportedHints() {
return super.getSupportedHints();
}
@Override
public Transaction getTransaction() {
return trans;
}
public List<FeatureId> addFeatures(final FeatureReader<SimpleFeatureType, SimpleFeature> reader) throws IOException {
List<SimpleFeature> features=new ArrayList<SimpleFeature>();
while(reader.hasNext()){
try {
SimpleFeature next = reader.next();
features.add(next);
} catch (Exception e) {
throw (IOException) new IOException( ).initCause( e );
}
}
return addFeatures(DataUtilities.collection((SimpleFeature[]) features.toArray(new SimpleFeature[0])));
}
public List<FeatureId> addFeatures(FeatureCollection<SimpleFeatureType,SimpleFeature> collection) throws IOException {
WFSTransactionState ts = null;
if (trans == Transaction.AUTO_COMMIT) {
ts = new WFSTransactionState(ds);
} else {
ts = (WFSTransactionState) trans.getState(ds);
}
List<FeatureId> r = new LinkedList<FeatureId>();
SimpleFeatureType schema = getSchema();
LenientBuilder build = new LenientBuilder( schema );
boolean isLenient = true;
if( schema.getUserData().containsKey("lenient")){
isLenient = (Boolean) schema.getUserData().get("lenient");
}
if( isLenient ){
build.setFeatureFactory( new LenientFeatureFactory());
}
List<AttributeDescriptor> atrs = schema.getAttributeDescriptors();
FeatureIterator<SimpleFeature> iter=collection.features();
try{
ReferencedEnvelope bounds=null;
while (iter.hasNext()){
try {
SimpleFeature newFeature;
try {
SimpleFeature f = iter.next();
String nextFid = ts.nextFid(schema.getTypeName());
Object[] values = f.getAttributes().toArray();
build.addAll( values );
newFeature = build.buildFeature( nextFid );
r.add(newFeature.getIdentifier());
} catch (IllegalAttributeException e) {
throw (IOException) new IOException( e.getLocalizedMessage() );
}
for(int i=0;i<atrs.size();i++){
AttributeDescriptor att = atrs.get(i);
if(att instanceof GeometryDescriptor){
Object geom = newFeature.getAttribute(i);
if(geom instanceof Geometry){
Geometry g = (Geometry) geom;
CoordinateReferenceSystem cs = ((GeometryDescriptor)att).getCoordinateReferenceSystem();
// if( g==null ){
// continue;
// }
if( cs!=null && !cs.getIdentifiers().isEmpty() )
g.setUserData(cs.getIdentifiers().iterator().next().toString());
if( bounds==null ){
bounds=new ReferencedEnvelope(g.getEnvelopeInternal(), schema.getCoordinateReferenceSystem() );
}else{
bounds.expandToInclude(g.getEnvelopeInternal());
}
}
}
}
ts.addAction(schema.getTypeName(), new InsertAction(newFeature));
} catch (NoSuchElementException e) {
WFS_1_0_0_DataStore.LOGGER.warning(e.toString());
throw new IOException(e.toString());
}
}
// Fire a notification.
// JE
if( bounds==null){
// if bounds are null then send an envelope to say that features were added but
// at an unknown location.
bounds = new ReferencedEnvelope( getSchema().getCoordinateReferenceSystem() );
((WFS_1_0_0_DataStore)getDataStore()).listenerManager.fireFeaturesRemoved(schema.getTypeName(),
getTransaction(), bounds, false);
}else{
((WFS_1_0_0_DataStore)getDataStore()).listenerManager.fireFeaturesRemoved(schema.getTypeName(),
getTransaction(), bounds, false);
}
}finally{
iter.close();
}
if (trans == Transaction.AUTO_COMMIT) {
ts.commit();
String[] fids = ts.getFids(schema.getTypeName());
int i=0;
for( String fid : fids ){
FeatureId identifier = r.get(i);
if( identifier instanceof FeatureIdImpl){
((FeatureIdImpl)identifier).setID( fid );
}
i++;
}
return r;
}
return r;
}
@Override
public void removeFeatures(Filter filter2) throws IOException {
Filter filter=ds.processFilter(filter2);
WFSTransactionState ts = null;
if (trans == Transaction.AUTO_COMMIT) {
ts = new WFSTransactionState(ds);
} else {
ts = (WFSTransactionState) trans.getState(ds);
}
ts.addAction(getSchema().getTypeName(), new DeleteAction(getSchema().getTypeName(), filter));
// Fire a notification. I don't know a way of quickly getting the bounds of
// an arbitrary filter so I'm sending a NULL envelope to say "some features were removed but I don't
// know what." Can't be null because the convention states that null is sent on commits only.
// JE
((WFS_1_0_0_DataStore)getDataStore()).listenerManager.fireFeaturesRemoved(getSchema().getTypeName(),
getTransaction(), null, false);
if (trans == Transaction.AUTO_COMMIT) {
ts.commit();
}
}
@Override
public void modifyFeatures(Name[] names, Object[] value,
Filter filter2) throws IOException {
Filter filter=ds.processFilter(filter2);
WFSTransactionState ts = null;
if (trans == Transaction.AUTO_COMMIT) {
ts = new WFSTransactionState(ds);
} else {
ts = (WFSTransactionState) trans.getState(ds);
}
Map<String,Object> props = new HashMap<String,Object>();
ReferencedEnvelope bounds=null;
for (int i = 0; i < names.length; i++) {
if(names[i] instanceof GeometryDescriptor){
Geometry g = (Geometry)value[i];
CoordinateReferenceSystem cs = ((GeometryDescriptor)names[i]).getCoordinateReferenceSystem();
if( cs!=null && !cs.getIdentifiers().isEmpty() )
g.setUserData(cs.getIdentifiers().iterator().next().toString());
g.setUserData(cs.getIdentifiers().iterator().next().toString());
if( cs!=null && !cs.getIdentifiers().isEmpty() )
g.setUserData(cs.getIdentifiers().iterator().next().toString());
// set/expand the bounds that are being changed.
// if( g==null ){
// continue;
// }
if( bounds==null ){
bounds=new ReferencedEnvelope(g.getEnvelopeInternal(),cs);
}else{
bounds.expandToInclude(g.getEnvelopeInternal());
}
}
props.put(names[i].getLocalPart(), value[i]);
}
ts.addAction(getSchema().getTypeName(), new UpdateAction(getSchema().getTypeName(), filter, props));
// Fire a notification.
// JE
if( bounds==null ){
// if bounds are null then send an envelope to say that features were modified but
// at an unknown location.
bounds = new ReferencedEnvelope(getSchema().getCoordinateReferenceSystem());
((WFS_1_0_0_DataStore)getDataStore()).listenerManager.fireFeaturesRemoved(getSchema().getTypeName(),
getTransaction(), bounds, false);
}else{
((WFS_1_0_0_DataStore)getDataStore()).listenerManager.fireFeaturesRemoved(getSchema().getTypeName(),
getTransaction(), bounds, false);
}
if (trans == Transaction.AUTO_COMMIT) {
ts.commit();
}
}
public final void modifyFeatures(AttributeDescriptor type, Object value, Filter filter)
throws IOException {
Name attributeName = type.getName();
modifyFeatures(attributeName, value, filter);
}
@Override
public void modifyFeatures(Name type, Object value, Filter filter)
throws IOException {
modifyFeatures(new Name[] { type, }, new Object[] { value, },
filter);
}
public final void modifyFeatures(AttributeDescriptor[] type, Object[] value, Filter filter)
throws IOException {
Name attributeNames[] = new Name[type.length];
for (int i = 0; i < type.length; i++) {
attributeNames[i] = type[i].getName();
}
modifyFeatures(attributeNames, value, filter);
}
public void modifyFeatures(String name, Object attributeValue, Filter filter)
throws IOException {
modifyFeatures(new Name[] { new NameImpl(name), }, new Object[] { attributeValue, }, filter);
}
public void modifyFeatures(String[] names, Object[] values, Filter filter) throws IOException {
Name attributeNames[] = new Name[names.length];
for (int i = 0; i < names.length; i++) {
attributeNames[i] = new NameImpl(names[i]);
}
modifyFeatures(attributeNames, values, filter);
}
@Override
public void setFeatures(FeatureReader <SimpleFeatureType, SimpleFeature> reader) throws IOException {
WFSTransactionState ts = null;
if (trans == Transaction.AUTO_COMMIT) {
ts = new WFSTransactionState(ds);
} else {
ts = (WFSTransactionState) trans.getState(ds);
}
ts.addAction(getSchema().getTypeName(), new DeleteAction(getSchema().getTypeName(), Filter.INCLUDE));
ReferencedEnvelope bounds=null;
while (reader.hasNext()){
try {
SimpleFeature f = reader.next();
List<AttributeDescriptor> atrs = f.getFeatureType().getAttributeDescriptors();
for(int i=0;i<atrs.size();i++){
if(atrs.get(i) instanceof GeometryDescriptor){
Geometry g = (Geometry)f.getAttribute(i);
CoordinateReferenceSystem cs = ((GeometryDescriptor)atrs.get(i)).getCoordinateReferenceSystem();
if( cs!=null && !cs.getIdentifiers().isEmpty() )
g.setUserData(cs.getIdentifiers().iterator().next().toString());
if( g==null )
continue;
if( bounds==null ){
bounds=new ReferencedEnvelope(g.getEnvelopeInternal(),cs);
}else{
bounds.expandToInclude(g.getEnvelopeInternal());
}
}
}
ts.addAction(getSchema().getTypeName(), new InsertAction(f));
} catch (NoSuchElementException e) {
WFS_1_0_0_DataStore.LOGGER.warning(e.toString());
} catch (IllegalAttributeException e) {
WFS_1_0_0_DataStore.LOGGER.warning(e.toString());
}
}
// Fire a notification.
// JE
if( bounds==null){
// if bounds are null then send an envelope to say that features were added but
// at an unknown location.
bounds = new ReferencedEnvelope( getSchema().getCoordinateReferenceSystem() );
((WFS_1_0_0_DataStore)getDataStore()).listenerManager.fireFeaturesRemoved(getSchema().getTypeName(),
getTransaction(), bounds, false);
}else{
((WFS_1_0_0_DataStore)getDataStore()).listenerManager.fireFeaturesRemoved(getSchema().getTypeName(),
getTransaction(), bounds, false);
}
if (trans == Transaction.AUTO_COMMIT) {
ts.commit();
}
}
@Override
public void setTransaction(Transaction transaction) {
if(transaction == null)
throw new NullPointerException("Should this not be Transaction.AutoCommit?");
trans = transaction;
if(trans != Transaction.AUTO_COMMIT){
WFSTransactionState ts = (WFSTransactionState) trans.getState(ds);
if(ts == null){
trans.putState(ds,new WFSTransactionState(ds));
}
}
}
}