sentilo/sentilo

/*
 * Sentilo
 *
 * Original version 1.4 Copyright (C) 2013 Institut Municipal d’Informàtica, Ajuntament de
 * Barcelona. Modified by Opentrends adding support for multitenant deployments and SaaS.
 * Modifications on version 1.5 Copyright (C) 2015 Opentrends Solucions i Sistemes, S.L.
 *
 *
 * This program is licensed and may be used, modified and redistributed under the terms of the
 * European Public License (EUPL), either version 1.1 or (at your option) any later version as soon
 * as they are approved by the European Commission.
 *
 * Alternatively, you may redistribute and/or modify this program 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.
 *
 * 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 licenses for the specific language governing permissions, limitations and more details.
 *
 * You should have received a copy of the EUPL1.1 and the LGPLv3 licenses along with this program;
 * if not, you may find them at:
 *
 * https://joinup.ec.europa.eu/software/page/eupl/licence-eupl http://www.gnu.org/licenses/ and
 * https://www.gnu.org/licenses/lgpl.txt
 */
package org.sentilo.web.catalog.domain;

import java.io.Serializable;
import java.util.Arrays;

import org.sentilo.common.utils.SentiloConstants;
import org.sentilo.common.utils.SentiloUtils;

public class Location implements Serializable {

  private static final long serialVersionUID = 1L;

  /** The ordered sequence of location coordinates */
  private LngLat[] coordinates;

  /**
   * The centroid, or geometry center, of the component with this location. This attribute is needed
   * for does a geospatial search in MongoDB. Its values are [longitude, latitude]
   */
  private Double[] centroid;

  /** Timestamp that shows when the component changed its location to this one */
  private Long fromTsTime;

  public Location() {
  }

  public Location(final LngLat[] coordinates) {
    this.coordinates = coordinates;
    fromTsTime = System.currentTimeMillis();
  }

  public Location(final LngLat coordinate) {
    coordinates = new LngLat[] {coordinate};
    fromTsTime = System.currentTimeMillis();
  }

  public int getNumberOfCoordinates() {
    return coordinates != null ? coordinates.length : 0;
  }

  @Override
  public boolean equals(final Object obj) {
    if (this == obj) {
      return true;
    }
    if (obj == null) {
      return false;
    }
    if (getClass() != obj.getClass()) {
      return false;
    }
    final Location other = (Location) obj;

    return getFromTsTime().equals(other.getFromTsTime()) && Arrays.equals(coordinates, other.getCoordinates());
  }

  @Override
  public int hashCode() {
    // Hashcode return must be consistent with the equals method
    final int prime = 17;
    int result = 1;
    result = prime * result + fromTsTime.hashCode() + (SentiloUtils.arrayIsEmpty(coordinates) ? 0 : coordinates.hashCode());
    return result;
  }

  @Override
  public String toString() {
    final StringBuilder sb = new StringBuilder();
    boolean first = true;
    if (!SentiloUtils.arrayIsEmpty(coordinates)) {
      for (final LngLat coordinate : coordinates) {
        if (!first) {
          sb.append(SentiloConstants.LOCATION_TOKEN_SPLITTER);
        }
        sb.append(coordinate.getLatitude());
        sb.append(SentiloConstants.LOCATION_TOKEN_DIVIDER);
        sb.append(coordinate.getLongitude());

        first = false;
      }
    }

    return sb.toString();
  }

  public LngLat[] getCoordinates() {
    return coordinates;
  }

  public void setCoordinates(final LngLat[] coordinates) {
    this.coordinates = coordinates;
  }

  public Double[] getCentroid() {
    return centroid;
  }

  public void setCentroid(final Double[] centroid) {
    this.centroid = centroid;
  }

  public Long getFromTsTime() {
    return fromTsTime;
  }

  public void setFromTsTime(final Long fromTsTime) {
    this.fromTsTime = fromTsTime;
  }

}