/**
* Copyright (C) 2011 Brian Ferris <bdferris@onebusaway.org>
* Copyright (C) 2011 Google, Inc.
*
* 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 org.onebusaway.transit_data_federation.services.blocks;
import java.util.List;
import org.onebusaway.transit_data_federation.impl.transit_graph.BlockTripEntryImpl;
import org.onebusaway.transit_data_federation.services.transit_graph.BlockTripEntry;
import org.onebusaway.transit_data_federation.services.transit_graph.ServiceIdActivation;
/**
* Abstract support class for building searchable indices over
* {@link BlockTripEntry} elements. The class has checks to ensure that each
* block trip has the same {@link ServiceIdActivation}.
*
* @author bdferris
*
*/
public abstract class AbstractBlockTripIndex implements HasBlockTrips {
protected final List<BlockTripEntry> _trips;
public AbstractBlockTripIndex(List<BlockTripEntry> trips) {
if (trips == null)
throw new IllegalArgumentException("trips is null");
if (trips.isEmpty())
throw new IllegalArgumentException("trips is empty");
checkTripsHaveSameServiceids(trips);
_trips = trips;
for (BlockTripEntry trip : trips) {
BlockTripEntryImpl tripImpl = (BlockTripEntryImpl) trip;
tripImpl.setPattern(this);
}
}
public List<BlockTripEntry> getTrips() {
return _trips;
}
public ServiceIdActivation getServiceIds() {
return _trips.get(0).getBlockConfiguration().getServiceIds();
}
public int size() {
return _trips.size();
}
private static void checkTripsHaveSameServiceids(List<BlockTripEntry> trips) {
ServiceIdActivation expected = trips.get(0).getBlockConfiguration().getServiceIds();
for (int i = 1; i < trips.size(); i++) {
ServiceIdActivation actual = trips.get(i).getBlockConfiguration().getServiceIds();
if (!expected.equals(actual))
throw new IllegalArgumentException("serviceIds mismatch: expected="
+ expected + " actual=" + actual);
}
}
}