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A Java library for transforming Google Transit Feed Spec feeds

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/**
 * Copyright (C) 2011 Brian Ferris 
 *
 * 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.gtfs_transformer.updates;

import java.util.Arrays;
import java.util.List;

import org.onebusaway.gtfs.model.AgencyAndId;
import org.onebusaway.gtfs.model.StopTime;

public class StopSequencePattern {

  private final AgencyAndId[] _stopIds;
  private final int[] _arrivalTimes;
  private final int[] _departureTimes;

  public StopSequencePattern(AgencyAndId[] stopIds, int[] arrivalTimes,
      int[] departureTimes) {
    _stopIds = stopIds;
    _arrivalTimes = arrivalTimes;
    _departureTimes = departureTimes;
  }

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + Arrays.hashCode(_arrivalTimes);
    result = prime * result + Arrays.hashCode(_departureTimes);
    result = prime * result + Arrays.hashCode(_stopIds);
    return result;
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj)
      return true;
    if (obj == null)
      return false;
    if (getClass() != obj.getClass())
      return false;
    StopSequencePattern other = (StopSequencePattern) obj;
    if (!Arrays.equals(_arrivalTimes, other._arrivalTimes))
      return false;
    if (!Arrays.equals(_departureTimes, other._departureTimes))
      return false;
    if (!Arrays.equals(_stopIds, other._stopIds))
      return false;
    return true;
  }

  public static StopSequencePattern getPatternForStopTimes(List stopTimes) {
    int n = stopTimes.size();
    AgencyAndId[] stopIds = new AgencyAndId[n];
    int[] arrivalTimes = new int[n];
    int[] departureTimes = new int[n];
    for (int i = 0; i < n; i++) {
      StopTime stopTime = stopTimes.get(i);
      stopIds[i] = stopTime.getStop().getId();
      arrivalTimes[i] = stopTime.getArrivalTime();
      departureTimes[i] = stopTime.getDepartureTime();
    }
    return new StopSequencePattern(stopIds, arrivalTimes, departureTimes);
  }
}