LengthUnits.java
- package org.opentrafficsim.core.network.factory.xml.units;
- import java.util.HashMap;
- import java.util.Map;
- import org.djunits.unit.LengthUnit;
- import org.djunits.unit.LinearDensityUnit;
- import org.djunits.unit.UNITS;
- import org.djunits.value.vdouble.scalar.Length;
- import org.djunits.value.vdouble.scalar.LinearDensity;
- import org.djunits.value.vdouble.scalar.Position;
- import org.opentrafficsim.core.network.NetworkException;
- /**
- * Parser for length with unit.
- * <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/docs/license.html">OpenTrafficSim License</a>.
- * <p>
- * $LastChangedDate: 2015-07-24 02:58:59 +0200 (Fri, 24 Jul 2015) $, @version $Revision: 1147 $, by $Author: averbraeck $,
- * initial version Jul 23, 2015 <br>
- * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
- */
- public final class LengthUnits implements UNITS
- {
- /** The length units. */
- public static final Map<String, LengthUnit> LENGTH_UNITS = new HashMap<>();
- /** The per-length units. */
- public static final Map<String, LinearDensityUnit> PER_LENGTH_UNITS = new HashMap<>();
- static
- {
- LENGTH_UNITS.put("mm", MILLIMETER);
- LENGTH_UNITS.put("cm", CENTIMETER);
- LENGTH_UNITS.put("dm", DECIMETER);
- LENGTH_UNITS.put("dam", DEKAMETER);
- LENGTH_UNITS.put("hm", HECTOMETER);
- LENGTH_UNITS.put("m", METER);
- LENGTH_UNITS.put("km", KILOMETER);
- LENGTH_UNITS.put("mi", MILE);
- LENGTH_UNITS.put("y", YARD);
- LENGTH_UNITS.put("ft", FOOT);
- PER_LENGTH_UNITS.put("/mm", PER_MILLIMETER);
- PER_LENGTH_UNITS.put("/cm", PER_CENTIMETER);
- PER_LENGTH_UNITS.put("/dm", PER_DECIMETER);
- PER_LENGTH_UNITS.put("/dam", PER_DEKAMETER);
- PER_LENGTH_UNITS.put("/hm", PER_HECTOMETER);
- PER_LENGTH_UNITS.put("/m", PER_METER);
- PER_LENGTH_UNITS.put("/km", PER_KILOMETER);
- PER_LENGTH_UNITS.put("/mi", PER_MILE);
- PER_LENGTH_UNITS.put("/y", PER_YARD);
- PER_LENGTH_UNITS.put("/ft", PER_FOOT);
- }
- /** Utility class. */
- private LengthUnits()
- {
- // do not instantiate
- }
- /**
- * @param s the string to parse
- * @return the unit as a String in the Map.
- * @throws NetworkException when parsing fails
- */
- public static String parseLengthUnit(final String s) throws NetworkException
- {
- String u = null;
- for (String us : LENGTH_UNITS.keySet())
- {
- if (s.toString().contains(us))
- {
- if (u == null || us.length() > u.length())
- {
- u = us;
- }
- }
- }
- if (u == null)
- {
- throw new NetworkException("Parsing network: cannot instantiate length unit in: " + s);
- }
- return u;
- }
- /**
- * @param s the string to parse
- * @return the next value.
- * @throws NetworkException when parsing fails
- */
- public static Position parsePosition(final String s) throws NetworkException
- {
- String us = parseLengthUnit(s);
- LengthUnit u = LENGTH_UNITS.get(us);
- String sv = s.substring(0, s.indexOf(us));
- try
- {
- double value = Double.parseDouble(sv);
- return new Position(value, u);
- }
- catch (NumberFormatException nfe)
- {
- throw new NetworkException("Parsing network: cannot instantiate scalar: " + s, nfe);
- }
- }
- /**
- * @param s the string to parse
- * @return the next value.
- * @throws NetworkException when parsing fails
- */
- public static Length parseLength(final String s) throws NetworkException
- {
- String us = parseLengthUnit(s);
- LengthUnit u = LENGTH_UNITS.get(us);
- String sv = s.substring(0, s.indexOf(us));
- try
- {
- double value = Double.parseDouble(sv);
- return new Length(value, u);
- }
- catch (NumberFormatException nfe)
- {
- throw new NetworkException("Parsing network: cannot instantiate scalar: " + s, nfe);
- }
- }
- /**
- * @param s the string to parse
- * @return the unit as a String in the Map.
- * @throws NetworkException when parsing fails
- */
- public static String parsePerLengthUnit(final String s) throws NetworkException
- {
- String u = null;
- for (String us : PER_LENGTH_UNITS.keySet())
- {
- if (s.toString().contains(us))
- {
- if (u == null || us.length() > u.length())
- {
- u = us;
- }
- }
- }
- if (u == null)
- {
- throw new NetworkException("Parsing network: cannot instantiate per-length unit in: " + s);
- }
- return u;
- }
- /**
- * @param s the string to parse
- * @return the next value.
- * @throws NetworkException when parsing fails
- */
- public static LinearDensity parseLinearDensity(final String s) throws NetworkException
- {
- String us = parsePerLengthUnit(s);
- LinearDensityUnit u = PER_LENGTH_UNITS.get(us);
- String sv = s.substring(0, s.indexOf(us));
- try
- {
- double value = Double.parseDouble(sv);
- return new LinearDensity(value, u);
- }
- catch (NumberFormatException nfe)
- {
- throw new NetworkException("Parsing network: cannot instantiate scalar: " + s, nfe);
- }
- }
- }