gvsig-3d / 2.1 / trunk / org.gvsig.view3d / org.gvsig.view3d.swing / org.gvsig.view3d.swing.impl / src / main / java / org / gvsig / view3d / swing / impl / data / DefaultDataRasterReader.java @ 446
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1 | 446 | llmarques | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright ? 2007-2015 gvSIG Association
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | |||
25 | package org.gvsig.view3d.swing.impl.data; |
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26 | |||
27 | import java.io.IOException; |
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28 | |||
29 | import org.gvsig.fmap.mapcontext.MapContext; |
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30 | import org.gvsig.fmap.mapcontext.layers.FLayer; |
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31 | |||
32 | import gov.nasa.worldwind.avlist.AVKey; |
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33 | import gov.nasa.worldwind.avlist.AVList; |
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34 | import gov.nasa.worldwind.avlist.AVListImpl; |
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35 | import gov.nasa.worldwind.data.AbstractDataRasterReader; |
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36 | import gov.nasa.worldwind.data.DataRaster; |
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37 | import gov.nasa.worldwind.geom.Sector; |
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38 | |||
39 | /**
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40 | * @author <a href="mailto:lmarques@disid.com">Lluis Marques</a>
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41 | *
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42 | */
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43 | public class DefaultDataRasterReader extends AbstractDataRasterReader { |
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44 | |||
45 | /**
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46 | * @param description
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47 | */
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48 | protected DefaultDataRasterReader(String description) { |
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49 | super(description);
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50 | } |
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51 | |||
52 | @Override
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53 | public boolean canRead(Object source, AVList params) { |
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54 | |||
55 | if (source == null) { |
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56 | throw new IllegalArgumentException(); |
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57 | } |
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58 | |||
59 | return this.doCanRead(source, params); |
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60 | } |
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61 | |||
62 | @Override
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63 | protected boolean doCanRead(Object source, AVList params) { |
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64 | |||
65 | if (params == null) { |
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66 | return false; |
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67 | } |
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68 | |||
69 | Sector sector = (Sector) params.getValue(AVKey.SECTOR); |
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70 | if (sector == null) { |
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71 | return false; |
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72 | } |
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73 | |||
74 | if (source instanceof FLayer) { |
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75 | |||
76 | boolean canRead = false; |
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77 | GvSIGLayerDataRaster dataRaster = null;
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78 | |||
79 | try {
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80 | FLayer layer = (FLayer) source; |
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81 | MapContext mapContext = |
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82 | (MapContext) params.getValue("GVSIG_MAPCONTEXT");
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83 | dataRaster = |
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84 | new GvSIGLayerDataRaster(mapContext, layer, params);
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85 | canRead = true;
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86 | } catch (Throwable e) { |
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87 | canRead = false;
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88 | } finally {
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89 | if (dataRaster != null) { |
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90 | dataRaster.dispose(); |
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91 | } |
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92 | } |
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93 | |||
94 | return canRead;
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95 | } |
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96 | |||
97 | return false; |
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98 | } |
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99 | |||
100 | @Override
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101 | protected DataRaster[] doRead(Object source, AVList params) |
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102 | throws IOException { |
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103 | |||
104 | if (source == null) { |
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105 | throw new IllegalArgumentException(); |
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106 | } |
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107 | |||
108 | if (source instanceof FLayer) { |
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109 | |||
110 | FLayer layer = (FLayer) source; |
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111 | MapContext mapContext = |
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112 | (MapContext) params.getValue("GVSIG_MAPCONTEXT");
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113 | GvSIGLayerDataRaster dataRaster = |
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114 | new GvSIGLayerDataRaster(mapContext, layer, params);
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115 | return new DataRaster[] { dataRaster }; |
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116 | |||
117 | } |
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118 | |||
119 | return null; |
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120 | } |
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121 | |||
122 | @Override
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123 | protected void doReadMetadata(Object source, AVList params) |
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124 | throws IOException { |
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125 | |||
126 | //TODO: fill weigth height and sector
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127 | |||
128 | } |
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129 | |||
130 | @Override
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131 | public AVList readMetadata(Object source, AVList params) throws java.io.IOException |
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132 | { |
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133 | if (!this.canRead(source, params)) |
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134 | { |
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135 | throw new IllegalArgumentException(); |
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136 | } |
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137 | |||
138 | if (params == null) |
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139 | params = new AVListImpl();
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140 | |||
141 | this.doReadMetadata(source, params);
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142 | |||
143 | String message = this.validateMetadata(source, params); |
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144 | if (message != null) |
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145 | throw new java.io.IOException(message); |
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146 | |||
147 | return params;
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148 | } |
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149 | |||
150 | } |