svn-gvsig-desktop / trunk / extensions / extWMS / src / com / iver / cit / gvsig / fmap / layers / DefaultDimension.java @ 9075
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| 1 | 3746 | jaume | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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| 2 | *
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| 3 | * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU General Public License
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| 7 | * as published by the Free Software Foundation; either version 2
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| 8 | * of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 18 | *
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| 19 | * For more information, contact:
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| 20 | *
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| 21 | * Generalitat Valenciana
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| 22 | * Conselleria d'Infraestructures i Transport
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| 23 | * Av. Blasco Ib??ez, 50
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| 24 | * 46010 VALENCIA
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| 25 | * SPAIN
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| 26 | *
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| 27 | * +34 963862235
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| 28 | * gvsig@gva.es
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| 29 | * www.gvsig.gva.es
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| 30 | *
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| 31 | * or
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| 32 | *
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| 33 | * IVER T.I. S.A
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| 34 | * Salamanca 50
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| 35 | * 46005 Valencia
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| 36 | * Spain
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| 37 | *
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| 38 | * +34 963163400
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| 39 | * dac@iver.es
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| 40 | */
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| 41 | |||
| 42 | /* CVS MESSAGES:
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| 43 | *
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| 44 | * $Id$
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| 45 | * $Log$
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| 46 | 4222 | jaume | * Revision 1.5 2006-02-28 15:25:14 jaume
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| 47 | 3805 | jaume | * *** empty log message ***
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| 48 | *
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| 49 | 4222 | jaume | * Revision 1.3.2.4 2006/02/10 13:22:35 jaume
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| 50 | * now analyzes dimensions on demand
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| 51 | *
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| 52 | * Revision 1.3.2.3 2006/01/31 16:25:24 jaume
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| 53 | * correcciones de bugs
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| 54 | *
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| 55 | * Revision 1.4 2006/01/26 16:07:14 jaume
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| 56 | * *** empty log message ***
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| 57 | *
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| 58 | 3805 | jaume | * Revision 1.3.2.1 2006/01/26 12:59:32 jaume
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| 59 | * 0.5
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| 60 | *
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| 61 | * Revision 1.3 2006/01/25 09:08:53 jaume
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| 62 | 3756 | jaume | * test save and reload project
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| 63 | *
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| 64 | * Revision 1.2 2006/01/24 14:36:33 jaume
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| 65 | 3746 | jaume | * This is the new version
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| 66 | *
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| 67 | * Revision 1.1.2.1 2006/01/20 15:22:46 jaume
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| 68 | * *** empty log message ***
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| 69 | *
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| 70 | *
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| 71 | */
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| 72 | package com.iver.cit.gvsig.fmap.layers; |
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| 73 | /**
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| 74 | * This class instances a regular WMS dimension. It handles single, multiple and
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| 75 | * interval values and uses them as they were a point, a list or a regularly
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| 76 | * split line, respectivelly.<br>
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| 77 | * <p>
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| 78 | * As far as it implements IFMapWMSDimension it uses the same interface and
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| 79 | * documentation.
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| 80 | * </p>
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| 81 | * @author jaume dominguez faus (jaume.dominguez@iver.es)
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| 82 | *
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| 83 | */
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| 84 | public class DefaultDimension implements IFMapWMSDimension { |
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| 85 | static private final String digit = "[0-9]"; |
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| 86 | static private final String nonZeroDigit = "[1-9]"; |
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| 87 | static private final String letter = "[_$%a-zA-Z]"; |
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| 88 | static private final String word = letter+"("+letter+"|"+digit+")+"; |
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| 89 | static private final String floatingPointNumber = "("+digit+"+(\\."+digit+"+)?)"; |
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| 90 | static private final String integerNumber = nonZeroDigit+digit+"+"; |
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| 91 | static private final String dimensionItem = "("+floatingPointNumber+"|"+word+")"; |
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| 92 | /**
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| 93 | * regular expression for matching dimensions.
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| 94 | */
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| 95 | static private final String regexpDefaultDimensionExpression = |
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| 96 | "("+floatingPointNumber+"/"+floatingPointNumber+"/"+floatingPointNumber+"|"+ |
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| 97 | dimensionItem+"(,"+dimensionItem+")*)"; |
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| 98 | |||
| 99 | private String name; |
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| 100 | private String unit; |
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| 101 | private String unitSymbol; |
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| 102 | private String expression; |
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| 103 | private String period; |
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| 104 | private Object minValue; |
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| 105 | private Object maxValue; |
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| 106 | private int type; |
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| 107 | 4222 | jaume | private boolean compiled = false; |
| 108 | 3746 | jaume | /**
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| 109 | * Creates a new instance of DefaultDimension.
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| 110 | * @param _name
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| 111 | * @param _units
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| 112 | * @param _unitSymbol
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| 113 | * @param _dimensionExpression
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| 114 | */
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| 115 | public DefaultDimension(String _name, String _units, String _unitSymbol, String _dimensionExpression) { |
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| 116 | this.name = _name;
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| 117 | this.unit = _units;
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| 118 | this.unitSymbol = _unitSymbol;
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| 119 | setExpression(_dimensionExpression); |
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| 120 | } |
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| 121 | |||
| 122 | 3756 | jaume | /*
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| 123 | * (non-Javadoc)
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| 124 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#getName()
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| 125 | */
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| 126 | public String getName() { |
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| 127 | 3746 | jaume | return name;
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| 128 | } |
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| 129 | |||
| 130 | 3756 | jaume | /*
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| 131 | * (non-Javadoc)
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| 132 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#getUnit()
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| 133 | */
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| 134 | 3746 | jaume | public String getUnit() { |
| 135 | return unit;
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| 136 | } |
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| 137 | |||
| 138 | 3756 | jaume | /*
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| 139 | * (non-Javadoc)
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| 140 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#getUnitSymbol()
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| 141 | */
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| 142 | 3746 | jaume | public String getUnitSymbol() { |
| 143 | return unitSymbol;
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| 144 | } |
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| 145 | |||
| 146 | 3756 | jaume | /*
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| 147 | * (non-Javadoc)
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| 148 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#getLowLimit()
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| 149 | */
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| 150 | 3746 | jaume | public String getLowLimit() { |
| 151 | return (String) minValue; |
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| 152 | } |
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| 153 | |||
| 154 | 3756 | jaume | /*
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| 155 | * (non-Javadoc)
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| 156 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#getHighLimit()
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| 157 | */
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| 158 | 3746 | jaume | public String getHighLimit() { |
| 159 | return (String) maxValue; |
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| 160 | } |
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| 161 | |||
| 162 | 3756 | jaume | /*
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| 163 | * (non-Javadoc)
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| 164 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#getResolution()
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| 165 | */
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| 166 | 3746 | jaume | public String getResolution() { |
| 167 | if (type == INTERVAL) {
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| 168 | String[] s = expression.split("/"); |
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| 169 | return (s.length == 1) ? s[3] : null; |
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| 170 | } else return null; |
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| 171 | } |
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| 172 | |||
| 173 | 3756 | jaume | /*
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| 174 | * (non-Javadoc)
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| 175 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#isValidValue(java.lang.String)
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| 176 | */
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| 177 | 3746 | jaume | public boolean isValidValue(String value) { |
| 178 | return value.matches(word) || value.matches(floatingPointNumber);
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| 179 | } |
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| 180 | |||
| 181 | 3756 | jaume | /*
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| 182 | * (non-Javadoc)
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| 183 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#valueOf(java.lang.String)
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| 184 | */
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| 185 | 3746 | jaume | public Object valueOf(String value) throws IllegalArgumentException { |
| 186 | 4222 | jaume | if (compiled) {
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| 187 | if (value.matches(word)) {
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| 188 | return (String) value; |
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| 189 | } else if (value.matches(integerNumber)){ |
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| 190 | return new Integer(value); |
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| 191 | } |
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| 192 | else if (value.matches(floatingPointNumber)) { |
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| 193 | return new Float(value); |
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| 194 | } |
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| 195 | 3746 | jaume | } |
| 196 | return null; |
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| 197 | } |
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| 198 | |||
| 199 | 3756 | jaume | /*
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| 200 | * (non-Javadoc)
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| 201 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#valueAt(int)
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| 202 | */
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| 203 | 3746 | jaume | public String valueAt(int pos) throws ArrayIndexOutOfBoundsException { |
| 204 | 4222 | jaume | if (compiled) {
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| 205 | if (pos<0 || pos>valueCount()) |
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| 206 | throw new ArrayIndexOutOfBoundsException(pos+"(must be >= 0 and <="+valueCount()+")"); |
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| 207 | |||
| 208 | if (type == SINGLE_VALUE)
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| 209 | return expression;
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| 210 | |||
| 211 | if (type == MULTIPLE_VALUE)
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| 212 | return expression.split(",")[pos]; |
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| 213 | |||
| 214 | if (type == INTERVAL) {
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| 215 | double minPos = Double.parseDouble((String) minValue); |
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| 216 | double maxPos = Double.parseDouble((String) maxValue); |
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| 217 | double step = Double.parseDouble(period); |
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| 218 | double newPos = minPos + (step*pos);
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| 219 | if (newPos < minPos)
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| 220 | return minPos+""; |
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| 221 | |||
| 222 | if (newPos > maxPos)
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| 223 | return maxPos+""; |
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| 224 | return newPos+""; |
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| 225 | } |
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| 226 | } |
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| 227 | 3746 | jaume | return null; |
| 228 | } |
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| 229 | |||
| 230 | 3756 | jaume | /*
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| 231 | * (non-Javadoc)
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| 232 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#valueCount()
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| 233 | */
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| 234 | 3746 | jaume | public int valueCount() { |
| 235 | 4222 | jaume | if (compiled) {
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| 236 | if (type == MULTIPLE_VALUE) {
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| 237 | return expression.split(",").length; |
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| 238 | } else if (type == INTERVAL) { |
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| 239 | int count;
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| 240 | double min = Double.parseDouble((String) minValue); |
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| 241 | double max = Double.parseDouble((String) maxValue); |
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| 242 | double step = Double.parseDouble(period); |
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| 243 | double distance = max - min;
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| 244 | count = (int) (distance/step);
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| 245 | return count;
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| 246 | } else {
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| 247 | return 1; |
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| 248 | } |
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| 249 | 3746 | jaume | } |
| 250 | 4222 | jaume | return -1; |
| 251 | 3746 | jaume | } |
| 252 | |||
| 253 | 3756 | jaume | /*
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| 254 | * (non-Javadoc)
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| 255 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#getExpression()
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| 256 | */
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| 257 | 3746 | jaume | public String getExpression() { |
| 258 | return expression;
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| 259 | } |
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| 260 | |||
| 261 | 3756 | jaume | /*
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| 262 | * (non-Javadoc)
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| 263 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#setExpression(java.lang.String)
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| 264 | */
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| 265 | 4222 | jaume | public void setExpression(String expr) { |
| 266 | 3746 | jaume | expression = expr.toUpperCase(); |
| 267 | |||
| 268 | 4222 | jaume | } |
| 269 | 3746 | jaume | |
| 270 | 4222 | jaume | /*
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| 271 | * (non-Javadoc)
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| 272 | * @see com.iver.cit.gvsig.fmap.layers.IFMapWMSDimension#getType()
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| 273 | */
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| 274 | public int getType() { |
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| 275 | return type;
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| 276 | } |
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| 277 | |||
| 278 | public void compile() throws IllegalArgumentException { |
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| 279 | if (expression.matches(regexpDefaultDimensionExpression)){
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| 280 | |||
| 281 | 3746 | jaume | } else {
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| 282 | //System.err.println("Invalid dimension expression: "+expr+" (for "+this.getName()+")");
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| 283 | throw new IllegalArgumentException(); |
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| 284 | } |
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| 285 | 4222 | jaume | |
| 286 | |||
| 287 | 3746 | jaume | String separator;
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| 288 | if (expression.indexOf("/")!=-1) { |
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| 289 | separator = "/";
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| 290 | type = INTERVAL; |
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| 291 | } else if (expression.indexOf(",")!=-1) { |
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| 292 | separator = ",";
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| 293 | type = MULTIPLE_VALUE; |
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| 294 | } else {
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| 295 | separator = ",";
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| 296 | type = SINGLE_VALUE; |
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| 297 | } |
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| 298 | 4222 | jaume | compiled = true;
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| 299 | 3746 | jaume | String[] s = expression.split(separator); |
| 300 | minValue = valueOf(s[0]);
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| 301 | if (type == INTERVAL) {
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| 302 | maxValue = (s.length>1) ? valueOf(s[1]) : valueOf(s[0]); |
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| 303 | period = (s.length>2) ? s[2] : null; |
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| 304 | } else if (type == MULTIPLE_VALUE) { |
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| 305 | maxValue = valueOf(s[s.length-1]);
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| 306 | } else {
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| 307 | maxValue = valueOf(s[0]);
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| 308 | } |
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| 309 | 4222 | jaume | |
| 310 | 3746 | jaume | } |
| 311 | |||
| 312 | } |