/* This program 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, either version 3 of
the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
package org.opentripplanner.openstreetmap.impl;
import org.opentripplanner.openstreetmap.services.OpenStreetMapContentHandler;
import org.opentripplanner.openstreetmap.services.OpenStreetMapProvider;
import java.io.File;
import java.io.FileInputStream;
import crosby.binary.file.BlockInputStream;
/**
* Parser for the OpenStreetMap PBF format. Parses files in three passes:
* First the relations, then the ways, then the nodes are also loaded.
*
* @see http://wiki.openstreetmap.org/wiki/PBF_Format
* @see org.opentripplanner.openstreetmap.services.graph_builder.services.osm.OpenStreetMapContentHandler#biPhase
* @since 0.4
*/
public class BinaryFileBasedOpenStreetMapProviderImpl implements OpenStreetMapProvider {
private File _path;
public void readOSM(OpenStreetMapContentHandler handler) {
try {
BinaryOpenStreetMapParser parser = new BinaryOpenStreetMapParser(handler);
FileInputStream input = new FileInputStream(_path);
parser.setParseNodes(false);
parser.setParseWays(false);
(new BlockInputStream(input, parser)).process();
handler.doneFirstPhaseRelations();
input = new FileInputStream(_path);
parser.setParseRelations(false);
parser.setParseWays(true);
(new BlockInputStream(input, parser)).process();
handler.doneSecondPhaseWays();
input = new FileInputStream(_path);
parser.setParseNodes(true);
parser.setParseWays(false);
(new BlockInputStream(input, parser)).process();
handler.doneThirdPhaseNodes();
} catch (Exception ex) {
throw new IllegalStateException("error loading OSM from path " + _path, ex); }
}
public void setPath(File path) {
_path = path;
}
public String toString() {
return "BinaryFileBasedOpenStreetMapProviderImpl(" + _path + ")";
}
@Override
public void checkInputs() {
if (!_path.canRead()) {
throw new RuntimeException("Can't read OSM path: " + _path);
}
}
}