package org.opentrafficsim.road.network.factory.vissim;
   
   import java.io.Serializable;
   
   import org.djunits.unit.LengthUnit;
   import org.djunits.unit.SpeedUnit;
   import org.djunits.value.vdouble.scalar.Length;
   import org.djunits.value.vdouble.scalar.Speed;
   import org.opentrafficsim.core.gtu.GTUException;
  import org.opentrafficsim.core.gtu.GTUType;
  import org.opentrafficsim.core.network.NetworkException;
  import org.opentrafficsim.core.network.factory.xml.units.Distributions;
  import org.opentrafficsim.core.units.distributions.ContinuousDistDoubleScalar;
  import org.w3c.dom.NamedNodeMap;
  import org.w3c.dom.Node;
  import org.w3c.dom.NodeList;
  import org.xml.sax.SAXException;
  
  /**
   * GTU Tag.
   *
   * <pre>
   * {@code
    <xsd:element name="GTU">
      <xsd:complexType>
        <xsd:attribute name="NAME" type="xsd:string" use="required" />
        <xsd:attribute name="GTUTYPE" type="xsd:string" use="required" />
        <xsd:attribute name="LENGTH" type="LENGTHDISTTYPE" use="required" />
        <xsd:attribute name="WIDTH" type="LENGTHDISTTYPE" use="required" />
        <xsd:attribute name="MAXSPEED" type="SPEEDDISTTYPE" use="required" />
        <xsd:attribute ref="xml:base" />
      </xsd:complexType>
    </xsd:element>
   * }
   * </pre>
   * <p>
   * Copyright (c) 2013-2019 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/docs/license.html">OpenTrafficSim License</a>.
   * <p>
   * $LastChangedDate: 2019-01-06 01:39:32 +0100 (Sun, 06 Jan 2019) $, @version $Revision: 4833 $, by $Author: averbraeck $,
   * initial version Jul 23, 2015 <br>
   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   */
  class GTUTag implements Serializable
  {
      /** */
      private static final long serialVersionUID = 20150723L;
  
      /** Name. */
      @SuppressWarnings("checkstyle:visibilitymodifier")
      String name = null;
  
      /** Type. */
      @SuppressWarnings("checkstyle:visibilitymodifier")
      GTUType gtuType = null;
  
      /** GTU length. */
      @SuppressWarnings("checkstyle:visibilitymodifier")
      ContinuousDistDoubleScalar.Rel<Length, LengthUnit> lengthDist = null;
  
      /** GTU width. */
      @SuppressWarnings("checkstyle:visibilitymodifier")
      ContinuousDistDoubleScalar.Rel<Length, LengthUnit> widthDist = null;
  
      /** Maximum speed. */
      @SuppressWarnings("checkstyle:visibilitymodifier")
      ContinuousDistDoubleScalar.Rel<Speed, SpeedUnit> maxSpeedDist = null;
  
      /**
       * @param nodeList NodeList; nodeList the top-level nodes of the XML-file
       * @param parser VissimNetworkLaneParser; the parser with the lists of information
       * @throws SAXException when parsing of GTU tag fails
       * @throws NetworkException when parsing of GTU tag fails
       * @throws GTUException if GTUType defined twice
       */
      @SuppressWarnings("checkstyle:needbraces")
      static void parseGTUs(final NodeList nodeList, final VissimNetworkLaneParser parser)
              throws SAXException, NetworkException, GTUException
      {
          for (Node node : XMLParser.getNodes(nodeList, "GTU"))
          {
              NamedNodeMap attributes = node.getAttributes();
              GTUTag gtuTag = new GTUTag();
  
              Node name = attributes.getNamedItem("NAME");
              if (name == null)
              {
                  throw new SAXException("GTU: missing attribute NAME");
              }
              gtuTag.name = name.getNodeValue().trim();
              if (parser.getGtuTags().keySet().contains(gtuTag.name))
              {
                  throw new SAXException("GTU: NAME " + gtuTag.name + " defined twice");
              }
  
              Node gtuType = attributes.getNamedItem("GTUTYPE");
              if (gtuType == null)
              {
                  throw new SAXException("GTU: missing attribute GTUTYPE");
             }
             if (!parser.getGtuTypes().containsKey(gtuType.getNodeValue().trim()))
             {
                 throw new SAXException("GTU: GTUTYPE " + gtuType.getNodeValue().trim() + " not defined");
             }
             gtuTag.gtuType = parser.getGtuTypes().get(gtuType.getNodeValue().trim());
 
             Node length = attributes.getNamedItem("LENGTH");
             if (length == null)
             {
                 throw new SAXException("GTU: missing attribute LENGTH");
             }
             gtuTag.lengthDist = Distributions.parseLengthDist(length.getNodeValue());
 
             Node width = attributes.getNamedItem("WIDTH");
             if (width == null)
             {
                 throw new SAXException("GTU: missing attribute WIDTH");
             }
             gtuTag.widthDist = Distributions.parseLengthDist(width.getNodeValue());
 
             Node maxSpeed = attributes.getNamedItem("MAXSPEED");
             if (maxSpeed == null)
             {
                 throw new SAXException("GTU: missing attribute LENGTH");
             }
             gtuTag.maxSpeedDist = Distributions.parseSpeedDist(maxSpeed.getNodeValue());
 
             parser.getGtuTags().put(gtuTag.name, gtuTag);
         }
     }
 
     /** {@inheritDoc} */
     @Override
     public final String toString()
     {
         return "GTUTag [name=" + this.name + ", gtuType=" + this.gtuType + ", lengthDist=" + this.lengthDist + ", widthDist="
                 + this.widthDist + ", followingModel=" + ", maxSpeedDist=" + this.maxSpeedDist + "]";
     }
 
 }