/* Copyright 2014 The jeo project. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.jeo.geopkg;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Set;
import io.jeo.vector.FileVectorDriver;
import io.jeo.vector.Schema;
import io.jeo.util.Key;
import io.jeo.util.Password;
import static io.jeo.util.Util.set;
/**
* Support for a Geopackage Driver. An implementation only needs to provide
* a {@link Backend} via the {@link #backend(GeoPkgOpts)} method
* @author Ian Schneider <ischneider@boundlessgeo.com>
*/
public abstract class GeoPkgBaseDriver extends FileVectorDriver<GeoPkgWorkspace> {
/**
* User key, defaults to no user.
*/
public static final Key<String> USER = new Key<String>("user", String.class);
/**
* Password key.
*/
public static final Key<Password> PASSWD = new Key<Password>("passwd", Password.class);
@Override
public final GeoPkgWorkspace open(File file, Map<?, Object> opts) throws IOException {
GeoPkgOpts gpkgOpts = GeoPkgOpts.fromMap(opts);
return new GeoPkgWorkspace(backend(gpkgOpts), gpkgOpts);
}
/**
* Create a new Backend using the provided {@link GeoPkgOpts}.
* @param gpkgOpts non-null options
* @return non-null Backend
* @throws IOException if there is a problem creating the Backend
*/
protected abstract Backend backend(GeoPkgOpts gpkgOpts) throws IOException;
@Override
public final List<Key<?>> keys() {
return (List) Arrays.asList(FILE, USER, PASSWD);
}
@Override
public final String name() {
return "GeoPackage";
}
@Override
public final List<String> aliases() {
return Arrays.asList("gpkg", "geopkg");
}
@Override
public final Class<GeoPkgWorkspace> type() {
return GeoPkgWorkspace.class;
}
@Override
protected final GeoPkgWorkspace create(File file, Map<?, Object> opts, Schema schema) throws IOException {
GeoPkgWorkspace ws = open(file, opts);
ws.create(schema);
return ws;
}
static final Set<Capability> CAPABILITIES = set(CREATE, DESTROY, UPDATE, APPEND, FILTER, LIMIT, OFFSET, FIELD);
@Override
public Set<Capability> capabilities() {
return CAPABILITIES;
}
}