/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2007-2008, Open Source Geospatial Foundation (OSGeo)
*
* 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.shapefile;
import java.io.IOException;
import java.util.Set;
import org.geotools.data.FeatureReader;
import org.geotools.data.FeatureWriter;
import org.geotools.data.FilteringFeatureWriter;
import org.geotools.data.Query;
import org.geotools.data.QueryCapabilities;
import org.geotools.data.ResourceInfo;
import org.geotools.data.Transaction;
import org.geotools.data.shapefile.files.ShpFiles;
import org.geotools.data.store.ContentEntry;
import org.geotools.data.store.ContentFeatureStore;
import org.geotools.data.store.ContentState;
import org.geotools.geometry.jts.ReferencedEnvelope;
import org.opengis.feature.FeatureVisitor;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.feature.type.Name;
import org.opengis.filter.Filter;
/**
* FeatureStore for the Shapefile store, based on the {@link ContentFeatureStore} framework
*
* @author Andrea Aime - GeoSolutions
*/
@SuppressWarnings("rawtypes")
class ShapefileFeatureStore extends ContentFeatureStore {
ShapefileFeatureSource delegate;
public ShapefileFeatureStore(ContentEntry entry, ShpFiles files) {
super(entry, Query.ALL);
this.delegate = new ShapefileFeatureSource(entry, files);
this.hints = delegate.getSupportedHints();
}
@Override
protected FeatureWriter<SimpleFeatureType, SimpleFeature> getWriterInternal(Query query,
int flags) throws IOException {
if (flags == 0) {
throw new IllegalArgumentException("no write flags set");
}
ShapefileFeatureReader reader = (ShapefileFeatureReader) delegate
.getReaderInternal(Query.ALL);
FeatureWriter<SimpleFeatureType, SimpleFeature> writer;
ShapefileDataStore ds = getDataStore();
if(ds.indexManager.hasFidIndex(false) || ds.isFidIndexed() && ds.indexManager.hasFidIndex(true)) {
writer = new IndexedShapefileFeatureWriter(ds.indexManager, reader, ds.getCharset(), ds.getTimeZone());
} else {
writer = new ShapefileFeatureWriter(delegate.shpFiles, reader, ds.getCharset(),
ds.getTimeZone());
}
// if we only have to add move to the end.
// TODO: just make the code transfer the bytes in bulk instead and start actual writing at
// the end
if ((flags | WRITER_ADD) == WRITER_ADD) {
while (writer.hasNext()) {
writer.next();
}
}
// if we are filtering wrap the writer so that it returns only the selected features
// but writes down the mall
Filter filter = query.getFilter();
if (filter != null && !Filter.INCLUDE.equals(filter)) {
writer = new FilteringFeatureWriter(writer, filter);
}
return writer;
}
// ----------------------------------------------------------------------------------------
// METHODS DELEGATED TO OGRFeatureSource
// ----------------------------------------------------------------------------------------
public ShapefileDataStore getDataStore() {
return delegate.getDataStore();
}
public Transaction getTransaction() {
return delegate.getTransaction();
}
public ResourceInfo getInfo() {
return delegate.getInfo();
}
public QueryCapabilities getQueryCapabilities() {
return delegate.getQueryCapabilities();
}
@Override
protected ReferencedEnvelope getBoundsInternal(Query query) throws IOException {
return delegate.getBoundsInternal(query);
}
@Override
protected int getCountInternal(Query query) throws IOException {
return delegate.getCountInternal(query);
}
@Override
protected FeatureReader<SimpleFeatureType, SimpleFeature> getReaderInternal(Query query)
throws IOException {
return delegate.getReaderInternal(query);
}
@Override
protected SimpleFeatureType buildFeatureType() throws IOException {
return delegate.buildFeatureType();
}
@Override
public ContentEntry getEntry() {
return delegate.getEntry();
}
@Override
public Name getName() {
return delegate.getName();
}
@Override
public ContentState getState() {
return delegate.getState();
}
@Override
public void setTransaction(Transaction transaction) {
super.setTransaction(transaction);
if (delegate.getTransaction() != transaction) {
delegate.setTransaction(transaction);
}
}
@Override
protected boolean canFilter() {
return delegate.canFilter();
}
@Override
protected boolean canRetype() {
return delegate.canRetype();
}
@Override
protected boolean handleVisitor(Query query, FeatureVisitor visitor) throws IOException {
return delegate.handleVisitor(query, visitor);
}
}