package org.opentrafficsim.imb.kpi;
   
   import java.util.ArrayList;
   import java.util.List;
   
   import org.djunits.value.vdouble.scalar.Length;
   import org.opentrafficsim.kpi.interfaces.LaneDataInterface;
   import org.opentrafficsim.kpi.interfaces.LinkDataInterface;
   
  /**
   * <p>
   * Copyright (c) 2013-2016 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="http://opentrafficsim.org/node/13">OpenTrafficSim License</a>.
   * <p>
   * @version $Revision$, $LastChangedDate$, by $Author$, initial version 13 okt. 2016 <br>
   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
   * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
   */
  public class LinkData implements LinkDataInterface
  {
  
      /** Wrapped link. */
      private final String linkName;
  
      /** start node. */
      final NodeData startNode;
  
      /** end node. */
      final NodeData endNode;
  
      /** Lanes on this link. */
      private final List<LaneDataInterface> laneDataList = new ArrayList<>();
  
      /** the link length. */
      private final Length length;
  
      /**
       * @param linkName wrapped link name
       * @param startNode
       * @param endNode
       * @param length the length
       */
      public LinkData(final String linkName, final NodeData startNode, final NodeData endNode, final Length length)
      {
          this.linkName = linkName;
          this.length = length;
          this.startNode = startNode;
          this.endNode = endNode;
      }
  
      /**
       * Add the lane to the list of lanes for this link.
       * @param laneData the lane to add
       */
      public void addLaneData(final LaneData laneData)
      {
          this.laneDataList.add(laneData);
      }
  
      /** {@inheritDoc} */
      @Override
      public final List<LaneDataInterface> getLaneDatas()
      {
          return this.laneDataList;
      }
  
      /** {@inheritDoc} */
      @Override
      public final Length getLength()
      {
          return this.length;
      }
  
      /**
       * @return startNode
       */
      public final NodeData getStartNode()
      {
          return this.startNode;
      }
  
      /**
       * @return endNode
       */
      public final NodeData getEndNode()
      {
          return this.endNode;
      }
  
      /**
       * @return linkName
       */
      public final String getLinkName()
      {
          return this.linkName;
      }
  
      /** {@inheritDoc} */
     @Override
     public int hashCode()
     {
         final int prime = 31;
         int result = 1;
         result = prime * result + ((this.endNode == null) ? 0 : this.endNode.hashCode());
         result = prime * result + ((this.length == null) ? 0 : this.length.hashCode());
         result = prime * result + ((this.linkName == null) ? 0 : this.linkName.hashCode());
         result = prime * result + ((this.startNode == null) ? 0 : this.startNode.hashCode());
         return result;
     }
 
     /** {@inheritDoc} */
     @Override
     public boolean equals(Object obj)
     {
         if (this == obj)
             return true;
         if (obj == null)
             return false;
         if (getClass() != obj.getClass())
             return false;
         LinkData other = (LinkData) obj;
         if (this.endNode == null)
         {
             if (other.endNode != null)
                 return false;
         }
         else if (!this.endNode.equals(other.endNode))
             return false;
         if (this.length == null)
         {
             if (other.length != null)
                 return false;
         }
         else if (!this.length.equals(other.length))
             return false;
         if (this.linkName == null)
         {
             if (other.linkName != null)
                 return false;
         }
         else if (!this.linkName.equals(other.linkName))
             return false;
         if (this.startNode == null)
         {
             if (other.startNode != null)
                 return false;
         }
         else if (!this.startNode.equals(other.startNode))
             return false;
         return true;
     }
 
     /** {@inheritDoc} */
     @Override
     public String toString()
     {
         return "LinkData [linkName=" + this.linkName + ", startNode=" + this.startNode + ", endNode=" + this.endNode
                 + ", length=" + this.length + ", laneDataList.size()=" + this.laneDataList.size() + "]";
     }
 
 }