svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.mapcontext / org.gvsig.fmap.mapcontext.impl / src / main / java / org / gvsig / fmap / raster / lib / legend / impl / operations / contrast / ContrastOperationFactory.java @ 44831
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1 | 44831 | jjdelcerro | /* gvSIG. Desktop Geographic Information System.
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2 | *
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3 | * Copyright ? 2007-2017 gvSIG Association
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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., 51 Franklin Street, Fifth Floor, Boston,
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18 | * MA 02110-1301, USA.
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19 | *
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20 | * For any additional information, do not hesitate to contact us
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21 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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22 | */
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23 | package org.gvsig.raster.lib.legend.impl.operations.contrast; |
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24 | |||
25 | import java.io.IOException; |
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26 | import java.io.InputStream; |
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27 | import java.util.Map; |
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28 | |||
29 | import org.xmlpull.v1.XmlPullParserException; |
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30 | |||
31 | import org.gvsig.raster.lib.buffer.api.Buffer; |
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32 | import org.gvsig.raster.lib.buffer.api.BufferManager; |
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33 | import org.gvsig.raster.lib.buffer.api.operations.Operation; |
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34 | import org.gvsig.raster.lib.buffer.api.operations.OperationFactory; |
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35 | import org.gvsig.tools.ToolsLocator; |
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36 | import org.gvsig.tools.dynobject.DynObject; |
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37 | import org.gvsig.tools.dynobject.DynObjectManager; |
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38 | import org.gvsig.tools.dynobject.DynStruct; |
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39 | |||
40 | |||
41 | /**
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42 | * @author fdiaz
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43 | *
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44 | */
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45 | public class ContrastOperationFactory implements OperationFactory { |
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46 | public static String NAME="Contrast"; |
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47 | public static String DESCRIPTION="Contrast operation"; |
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48 | private DynStruct definition;
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49 | |||
50 | /**
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51 | *
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52 | */
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53 | public ContrastOperationFactory() {
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54 | // TODO Auto-generated constructor stub
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55 | } |
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56 | |||
57 | /* (non-Javadoc)
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58 | * @see org.gvsig.raster.lib.buffer.api.operations.OperationFactory#createParameters()
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59 | */
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60 | @Override
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61 | public DynObject createParameters() {
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62 | DynObjectManager manager = ToolsLocator.getDynObjectManager(); |
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63 | if (definition == null) { |
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64 | definition = createParametersDefinition(); |
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65 | } |
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66 | DynObject parameters = manager.createDynObject(definition); |
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67 | return parameters;
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68 | } |
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69 | |||
70 | /* (non-Javadoc)
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71 | * @see org.gvsig.raster.lib.buffer.api.operations.OperationFactory#create()
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72 | */
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73 | @Override
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74 | public Operation create() { |
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75 | return new ContrastOperation(this); |
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76 | } |
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77 | |||
78 | /* (non-Javadoc)
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79 | * @see org.gvsig.raster.lib.buffer.api.operations.OperationFactory#createParametersDefinition()
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80 | */
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81 | @Override
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82 | public DynStruct createParametersDefinition() {
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83 | return registerParametersDefinition("ContrastOperationParameters", "/org/gvsig/raster/lib/legend/impl/operations/contrast/ContrastOperationParameters.xml"); |
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84 | } |
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85 | |||
86 | /* (non-Javadoc)
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87 | * @see org.gvsig.raster.lib.buffer.api.operations.OperationFactory#getName()
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88 | */
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89 | @Override
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90 | public String getName() { |
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91 | return NAME;
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92 | } |
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93 | |||
94 | /* (non-Javadoc)
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95 | * @see org.gvsig.raster.lib.buffer.api.operations.OperationFactory#getDescription()
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96 | */
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97 | @Override
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98 | public String getDescription() { |
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99 | return DESCRIPTION;
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100 | } |
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101 | |||
102 | /* (non-Javadoc)
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103 | * @see org.gvsig.raster.lib.buffer.api.operations.OperationFactory#isApplicable(org.gvsig.raster.lib.buffer.api.Buffer)
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104 | */
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105 | @Override
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106 | public Applicable isApplicable(Buffer buffer) { |
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107 | int bandsCount = buffer.getBandCount();
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108 | int byteBandsCount = 0; |
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109 | for(int band = 0; band<bandsCount; band++){ |
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110 | if (buffer.getBandTypes()[band]==BufferManager.TYPE_BYTE) {
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111 | byteBandsCount++; |
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112 | } |
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113 | } |
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114 | if(byteBandsCount==bandsCount){
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115 | return Applicable.YES;
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116 | } else if (byteBandsCount==0) { |
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117 | return Applicable.NO;
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118 | } |
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119 | return Applicable.UNKNOW;
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120 | } |
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121 | |||
122 | /* (non-Javadoc)
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123 | * @see org.gvsig.raster.lib.buffer.api.operations.OperationFactory#isApplicable(org.gvsig.raster.lib.buffer.api.operations.Operation)
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124 | */
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125 | @Override
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126 | public Applicable isApplicable(Operation operation) { |
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127 | //FIXME:
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128 | return Applicable.YES;
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129 | } |
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130 | |||
131 | protected DynStruct registerParametersDefinition(String name, String filename) { |
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132 | DynStruct definition = null;
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133 | |||
134 | DynObjectManager manager = ToolsLocator.getDynObjectManager(); |
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135 | definition = manager.get(name); |
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136 | if ( definition == null) { |
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137 | InputStream stream = this.getClass().getResourceAsStream(filename); |
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138 | if( stream == null ) { |
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139 | throw new IllegalArgumentException("File '"+filename+"' not found"); |
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140 | } |
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141 | Map<String, DynStruct> definitions = null; |
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142 | try {
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143 | definitions = manager.importDynClassDefinitions(stream, this.getClass().getClassLoader());
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144 | } catch (XmlPullParserException e) {
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145 | throw new IllegalArgumentException("DynClass '"+name+"' can't parse file '"+filename+"'",e); |
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146 | } catch (IOException e) { |
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147 | throw new IllegalArgumentException("DynClass '"+name+"' can't read file '"+filename+"'",e); |
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148 | } |
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149 | definition = definitions.get(name); |
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150 | if ( definition == null) { |
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151 | throw new IllegalArgumentException("DynClass '"+name+"' not found in file '"+filename+"'"); |
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152 | } |
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153 | } |
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154 | return definition;
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155 | } |
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156 | |||
157 | } |