svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.api / src / main / java / org / gvsig / expressionevaluator / spi / AbstractFunction.java @ 44389
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| 1 | 43512 | jjdelcerro | package org.gvsig.expressionevaluator.spi; |
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| 2 | |||
| 3 | 44389 | jjdelcerro | import java.io.File; |
| 4 | 44006 | jjdelcerro | import java.io.InputStream; |
| 5 | 44389 | jjdelcerro | import java.net.URI; |
| 6 | import java.net.URISyntaxException; |
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| 7 | 44006 | jjdelcerro | import java.net.URL; |
| 8 | 44266 | jjdelcerro | import java.time.LocalDateTime; |
| 9 | import java.time.ZoneId; |
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| 10 | import java.time.temporal.TemporalAccessor; |
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| 11 | 43512 | jjdelcerro | import java.util.ArrayList; |
| 12 | 44266 | jjdelcerro | import java.util.Date; |
| 13 | 43512 | jjdelcerro | import java.util.List; |
| 14 | 44006 | jjdelcerro | import java.util.Locale; |
| 15 | 43512 | jjdelcerro | import java.util.Objects; |
| 16 | 44006 | jjdelcerro | import org.apache.commons.io.IOUtils; |
| 17 | 43939 | jjdelcerro | import org.apache.commons.lang3.BooleanUtils; |
| 18 | 43512 | jjdelcerro | import org.apache.commons.lang3.Range; |
| 19 | 44006 | jjdelcerro | import org.apache.commons.lang3.StringUtils; |
| 20 | 43939 | jjdelcerro | import org.apache.commons.math.util.MathUtils; |
| 21 | import org.gvsig.expressionevaluator.Code; |
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| 22 | 44139 | jjdelcerro | import org.gvsig.expressionevaluator.Codes; |
| 23 | 43512 | jjdelcerro | import org.gvsig.expressionevaluator.Function; |
| 24 | 44098 | jjdelcerro | import org.gvsig.expressionevaluator.I18N; |
| 25 | 43939 | jjdelcerro | import org.gvsig.expressionevaluator.Interpreter; |
| 26 | 43512 | jjdelcerro | import org.gvsig.fmap.geom.Geometry; |
| 27 | 43520 | jjdelcerro | import org.gvsig.fmap.geom.primitive.Point; |
| 28 | 44006 | jjdelcerro | import org.json.JSONArray; |
| 29 | import org.json.JSONObject; |
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| 30 | 43512 | jjdelcerro | |
| 31 | 44006 | jjdelcerro | @SuppressWarnings("UseSpecificCatch") |
| 32 | 43512 | jjdelcerro | public abstract class AbstractFunction implements Function { |
| 33 | 43521 | jjdelcerro | |
| 34 | 43512 | jjdelcerro | private final String name; |
| 35 | 44006 | jjdelcerro | private String group; |
| 36 | private Range argc;
|
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| 37 | private String description; |
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| 38 | private String[] descriptionArgs; |
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| 39 | 43512 | jjdelcerro | private List<String> alias; |
| 40 | 43521 | jjdelcerro | private String template; |
| 41 | 43939 | jjdelcerro | private String returnType; |
| 42 | 43989 | jjdelcerro | private boolean sqlCompatible; |
| 43 | 43512 | jjdelcerro | |
| 44 | 43989 | jjdelcerro | protected AbstractFunction(String group, String name, Range argc, String description, String template, String[] descriptionArgs, String returnType, boolean sqlCompatible) { |
| 45 | 43512 | jjdelcerro | this.name = name;
|
| 46 | this.group = group;
|
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| 47 | this.argc = argc;
|
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| 48 | this.description = description;
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| 49 | 43521 | jjdelcerro | this.template = template;
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| 50 | 43512 | jjdelcerro | this.descriptionArgs = descriptionArgs;
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| 51 | 43939 | jjdelcerro | this.returnType = returnType;
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| 52 | 43989 | jjdelcerro | this.sqlCompatible = sqlCompatible;
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| 53 | 44006 | jjdelcerro | load_from_resource(); |
| 54 | 43512 | jjdelcerro | } |
| 55 | 43989 | jjdelcerro | protected AbstractFunction(String group, String name, Range argc, String description, String template, String[] descriptionArgs, String returnType) { |
| 56 | this(group, name, argc, description, template, descriptionArgs, returnType, false); |
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| 57 | } |
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| 58 | |||
| 59 | 43939 | jjdelcerro | protected AbstractFunction(String group, String name, Range argc, String description, String template, String[] descriptionArgs) { |
| 60 | this(group, name, argc, description, template, null, null); |
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| 61 | 43521 | jjdelcerro | } |
| 62 | |||
| 63 | 43939 | jjdelcerro | protected AbstractFunction(String group, String name, Range argc, String description, String template) { |
| 64 | this(group, name, argc, description, template, null, null); |
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| 65 | } |
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| 66 | |||
| 67 | 43512 | jjdelcerro | protected AbstractFunction(String group, String name, Range argc) { |
| 68 | 43939 | jjdelcerro | this(group, name, argc, null, null, null, null); |
| 69 | 43512 | jjdelcerro | } |
| 70 | |||
| 71 | @Override
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| 72 | public String name() { |
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| 73 | return this.name; |
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| 74 | } |
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| 75 | |||
| 76 | @Override
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| 77 | 43939 | jjdelcerro | public String returnType() { |
| 78 | return this.returnType; |
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| 79 | } |
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| 80 | |||
| 81 | @Override
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| 82 | 43512 | jjdelcerro | public String group() { |
| 83 | return this.group; |
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| 84 | } |
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| 85 | |||
| 86 | @Override
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| 87 | public Range argc() {
|
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| 88 | return argc;
|
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| 89 | } |
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| 90 | |||
| 91 | @Override
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| 92 | public String description() { |
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| 93 | return description;
|
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| 94 | } |
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| 95 | |||
| 96 | @Override
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| 97 | public String[] descriptionArgs() { |
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| 98 | return descriptionArgs;
|
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| 99 | } |
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| 100 | |||
| 101 | @Override
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| 102 | public void addAlias(String name) { |
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| 103 | 44006 | jjdelcerro | if( StringUtils.isBlank(name) ) {
|
| 104 | return;
|
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| 105 | } |
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| 106 | 43512 | jjdelcerro | if( this.alias == null ) { |
| 107 | this.alias = new ArrayList<>(); |
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| 108 | } |
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| 109 | 44006 | jjdelcerro | if( this.alias.contains(name) ) { |
| 110 | return;
|
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| 111 | } |
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| 112 | 43512 | jjdelcerro | this.alias.add(name);
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| 113 | } |
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| 114 | |||
| 115 | @Override
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| 116 | 44139 | jjdelcerro | public List<String> aliases() { |
| 117 | 43512 | jjdelcerro | return this.alias; |
| 118 | } |
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| 119 | |||
| 120 | 43521 | jjdelcerro | @Override
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| 121 | public String template() { |
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| 122 | return this.template; |
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| 123 | } |
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| 124 | |||
| 125 | @Override
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| 126 | public boolean isOperator() { |
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| 127 | return false; |
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| 128 | } |
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| 129 | 43939 | jjdelcerro | |
| 130 | @Override
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| 131 | public boolean useArgumentsInsteadObjects() { |
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| 132 | return false; |
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| 133 | } |
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| 134 | |||
| 135 | @Override
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| 136 | 43989 | jjdelcerro | public boolean isSQLCompatible() { |
| 137 | return sqlCompatible;
|
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| 138 | } |
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| 139 | 44009 | jjdelcerro | |
| 140 | @Override
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| 141 | public boolean allowConstantFolding() { |
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| 142 | return false; |
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| 143 | } |
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| 144 | 43989 | jjdelcerro | |
| 145 | @Override
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| 146 | 44139 | jjdelcerro | public Object call(Interpreter interpreter, Codes args) throws Exception { |
| 147 | 43939 | jjdelcerro | return null; |
| 148 | } |
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| 149 | 43521 | jjdelcerro | |
| 150 | 43512 | jjdelcerro | protected int getInt(Object args[], int n) { |
| 151 | if( args.length < n ) {
|
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| 152 | 44098 | jjdelcerro | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
| 153 | 43512 | jjdelcerro | } |
| 154 | 44098 | jjdelcerro | Object value = args[n];
|
| 155 | if( value == null ) { |
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| 156 | throw new IllegalArgumentException(I18N.Illegal_null_value_for_argument_XargnX_of_XIdentifierX_function(name(), n)); |
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| 157 | 43512 | jjdelcerro | } |
| 158 | 44098 | jjdelcerro | if( !(value instanceof Number) ) { |
| 159 | String type = value.getClass().getCanonicalName();
|
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| 160 | throw new IllegalArgumentException( |
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| 161 | I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
|
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| 162 | I18N.Expected_XexpectedX_and_found_XfoundX("Number",type)
|
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| 163 | ); |
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| 164 | } |
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| 165 | return ((Number)value).intValue(); |
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| 166 | 43512 | jjdelcerro | } |
| 167 | |||
| 168 | protected long getLong(Object args[], int n) { |
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| 169 | if( args.length < n ) {
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| 170 | 44098 | jjdelcerro | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
| 171 | 43512 | jjdelcerro | } |
| 172 | 44098 | jjdelcerro | Object value = args[n];
|
| 173 | if( value == null ) { |
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| 174 | throw new IllegalArgumentException(I18N.Illegal_null_value_for_argument_XargnX_of_XIdentifierX_function(name(), n)); |
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| 175 | 43512 | jjdelcerro | } |
| 176 | 44098 | jjdelcerro | if( !(value instanceof Number) ) { |
| 177 | String type = value.getClass().getCanonicalName();
|
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| 178 | throw new IllegalArgumentException( |
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| 179 | I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
|
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| 180 | I18N.Expected_XexpectedX_and_found_XfoundX("Number",type)
|
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| 181 | ); |
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| 182 | } |
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| 183 | return ((Number)value).longValue(); |
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| 184 | 43512 | jjdelcerro | } |
| 185 | |||
| 186 | protected double getDouble(Object args[], int n) { |
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| 187 | if( args.length < n ) {
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| 188 | 44098 | jjdelcerro | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
| 189 | 43512 | jjdelcerro | } |
| 190 | 44098 | jjdelcerro | Object value = args[n];
|
| 191 | if( value == null ) { |
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| 192 | throw new IllegalArgumentException(I18N.Illegal_null_value_for_argument_XargnX_of_XIdentifierX_function(name(), n)); |
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| 193 | 43512 | jjdelcerro | } |
| 194 | 44098 | jjdelcerro | if( !(value instanceof Number) ) { |
| 195 | String type = value.getClass().getCanonicalName();
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| 196 | throw new IllegalArgumentException( |
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| 197 | I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
|
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| 198 | I18N.Expected_XexpectedX_and_found_XfoundX("Number",type)
|
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| 199 | ); |
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| 200 | } |
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| 201 | return ((Number)value).doubleValue(); |
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| 202 | 43512 | jjdelcerro | } |
| 203 | |||
| 204 | protected String getStr(Object args[], int n) { |
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| 205 | if( args.length < n ) {
|
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| 206 | 44098 | jjdelcerro | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
| 207 | 43512 | jjdelcerro | } |
| 208 | return Objects.toString(args[n], ""); |
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| 209 | } |
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| 210 | |||
| 211 | 44389 | jjdelcerro | protected File getFile(Object args[], int n) { |
| 212 | if( args.length < n ) {
|
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| 213 | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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| 214 | } |
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| 215 | Object arg = args[n];
|
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| 216 | if( arg == null ) { |
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| 217 | return null; |
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| 218 | } |
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| 219 | if( arg instanceof File ) { |
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| 220 | return (File)arg; |
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| 221 | } |
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| 222 | if( arg instanceof URL ) { |
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| 223 | try {
|
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| 224 | return new File(((URL)arg).toURI()); |
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| 225 | } catch (URISyntaxException ex) { |
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| 226 | return null; |
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| 227 | } |
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| 228 | } |
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| 229 | if( arg instanceof URI ) { |
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| 230 | return new File(((URI)arg)); |
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| 231 | } |
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| 232 | String s = Objects.toString(arg, null); |
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| 233 | if( s == null ) { |
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| 234 | return null; |
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| 235 | } |
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| 236 | File f = new File(s); |
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| 237 | return f;
|
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| 238 | } |
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| 239 | |||
| 240 | 43939 | jjdelcerro | protected Object getObject(Object args[], int n) { |
| 241 | if( args.length < n ) {
|
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| 242 | 44098 | jjdelcerro | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
| 243 | 43939 | jjdelcerro | } |
| 244 | return args[n];
|
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| 245 | } |
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| 246 | |||
| 247 | 44139 | jjdelcerro | protected Object getObject(Interpreter interpreter, Codes args, int n) { |
| 248 | if( args.size() < n ) {
|
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| 249 | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.size(), n)); |
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| 250 | 43939 | jjdelcerro | } |
| 251 | Code arg = args.get(n); |
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| 252 | Object value = interpreter.run(arg);
|
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| 253 | return value;
|
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| 254 | } |
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| 255 | |||
| 256 | 43512 | jjdelcerro | protected Geometry getGeom(Object[] args, int n) { |
| 257 | 44098 | jjdelcerro | return this.getGeom(args, n, false); |
| 258 | } |
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| 259 | |||
| 260 | protected Geometry getGeom(Object[] args, int n, boolean allowNull) { |
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| 261 | 43512 | jjdelcerro | if( args.length < n ) {
|
| 262 | 44098 | jjdelcerro | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
| 263 | 43512 | jjdelcerro | } |
| 264 | 44098 | jjdelcerro | Object value = args[n];
|
| 265 | if( value == null ) { |
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| 266 | if( allowNull ) {
|
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| 267 | return null; |
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| 268 | } |
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| 269 | throw new IllegalArgumentException(I18N.Illegal_null_value_for_argument_XargnX_of_XIdentifierX_function(name(), n)); |
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| 270 | 43512 | jjdelcerro | } |
| 271 | 44098 | jjdelcerro | if( !(value instanceof Geometry) ) { |
| 272 | String type = value.getClass().getCanonicalName();
|
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| 273 | throw new IllegalArgumentException( |
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| 274 | I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
|
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| 275 | I18N.Expected_XexpectedX_and_found_XfoundX("Geometry",type)
|
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| 276 | ); |
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| 277 | } |
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| 278 | return (Geometry)value;
|
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| 279 | 43512 | jjdelcerro | } |
| 280 | 43520 | jjdelcerro | |
| 281 | protected Point getPoint(Object[] args, int n) { |
||
| 282 | if( args.length < n ) {
|
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| 283 | 44098 | jjdelcerro | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
| 284 | 43520 | jjdelcerro | } |
| 285 | 44098 | jjdelcerro | Object value = args[n];
|
| 286 | if( value == null ) { |
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| 287 | return null; |
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| 288 | 43520 | jjdelcerro | } |
| 289 | 44098 | jjdelcerro | if( !(value instanceof Point) ) { |
| 290 | String type = value.getClass().getCanonicalName();
|
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| 291 | throw new IllegalArgumentException( |
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| 292 | I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
|
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| 293 | I18N.Expected_XexpectedX_and_found_XfoundX("Point",type)
|
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| 294 | ); |
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| 295 | } |
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| 296 | return (Point)value; |
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| 297 | 43520 | jjdelcerro | } |
| 298 | 43939 | jjdelcerro | |
| 299 | 44266 | jjdelcerro | protected Date getDate(Object[] args, int n) { |
| 300 | if( args.length < n ) {
|
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| 301 | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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| 302 | } |
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| 303 | Object value = args[n];
|
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| 304 | if( value == null ) { |
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| 305 | return null; |
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| 306 | } |
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| 307 | if( !(value instanceof Date) ) { |
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| 308 | String type = value.getClass().getCanonicalName();
|
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| 309 | throw new IllegalArgumentException( |
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| 310 | I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
|
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| 311 | I18N.Expected_XexpectedX_and_found_XfoundX("Date",type)
|
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| 312 | ); |
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| 313 | } |
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| 314 | return (Date)value; |
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| 315 | } |
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| 316 | |||
| 317 | protected LocalDateTime getLocalDateTime(Object[] args, int n) { |
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| 318 | if( args.length < n ) {
|
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| 319 | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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| 320 | } |
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| 321 | Object value = args[n];
|
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| 322 | if( value == null ) { |
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| 323 | return null; |
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| 324 | } |
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| 325 | if( value instanceof Date ) { |
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| 326 | Date date = ((Date)value); |
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| 327 | return date.toInstant().atZone(ZoneId.systemDefault()).toLocalDateTime();
|
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| 328 | } |
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| 329 | if( value instanceof LocalDateTime ) { |
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| 330 | return (LocalDateTime) value;
|
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| 331 | } |
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| 332 | if( value instanceof TemporalAccessor ) { |
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| 333 | return LocalDateTime.from(((TemporalAccessor)value));
|
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| 334 | } |
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| 335 | String type = value.getClass().getCanonicalName();
|
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| 336 | throw new IllegalArgumentException( |
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| 337 | I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
|
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| 338 | I18N.Expected_XexpectedX_and_found_XfoundX("Temporal/Date",type)
|
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| 339 | ); |
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| 340 | } |
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| 341 | |||
| 342 | 43939 | jjdelcerro | protected boolean getBoolean(Object args[], int n, Double accuracy) { |
| 343 | if( args.length < n ) {
|
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| 344 | 44098 | jjdelcerro | throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
| 345 | 43939 | jjdelcerro | } |
| 346 | Object value = args[n];
|
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| 347 | return toBoolean(value, accuracy);
|
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| 348 | } |
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| 349 | |||
| 350 | 44139 | jjdelcerro | protected boolean getBoolean(Interpreter interpreter, Codes args, int n) { |
| 351 | 43939 | jjdelcerro | Object value = getObject(interpreter, args, n);
|
| 352 | return toBoolean(value, interpreter.getAccuracy());
|
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| 353 | } |
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| 354 | |||
| 355 | protected boolean toBoolean(Object value, Double accuracy) { |
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| 356 | if( value == null ) { |
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| 357 | return false; |
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| 358 | } |
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| 359 | if( value instanceof Boolean ) { |
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| 360 | return (Boolean)value; |
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| 361 | } |
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| 362 | if( value instanceof Number ) { |
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| 363 | return MathUtils.compareTo(
|
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| 364 | ((Number) value).doubleValue(),
|
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| 365 | 0,
|
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| 366 | accuracy==null? MathUtils.EPSILON:accuracy
|
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| 367 | ) == 0;
|
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| 368 | } |
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| 369 | return BooleanUtils.toBoolean(value.toString());
|
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| 370 | } |
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| 371 | 44006 | jjdelcerro | |
| 372 | private void load_from_resource() { |
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| 373 | String lang = Locale.getDefault().getLanguage(); |
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| 374 | URL url = this.getClass().getResource("/org/gvsig/expressionevaluator/functions/"+lang+"/"+this.name()+".json"); |
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| 375 | if( url == null ) { |
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| 376 | url = this.getClass().getResource("/org/gvsig/expressionevaluator/functions/en/"+this.name()+".json"); |
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| 377 | if( url == null ) { |
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| 378 | return;
|
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| 379 | } |
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| 380 | } |
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| 381 | InputStream is = null; |
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| 382 | JSONObject json; |
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| 383 | try {
|
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| 384 | is = url.openStream(); |
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| 385 | List<String> lines = IOUtils.readLines(is); |
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| 386 | json = new JSONObject(StringUtils.join(lines, "\n")); |
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| 387 | } catch (Exception ex) { |
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| 388 | return;
|
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| 389 | } finally {
|
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| 390 | IOUtils.closeQuietly(is); |
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| 391 | } |
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| 392 | |||
| 393 | if( json.has("group") ) { |
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| 394 | this.group = json.getString("group"); |
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| 395 | } |
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| 396 | if( json.has("description") ) { |
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| 397 | Object x = json.get("description"); |
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| 398 | if( x instanceof String ) { |
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| 399 | this.description = (String) x; |
||
| 400 | } else if( x instanceof JSONArray ) { |
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| 401 | StringBuilder builder = new StringBuilder(); |
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| 402 | for (int i = 0; i < ((JSONArray)x).length(); i++) { |
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| 403 | if( i>0 ) { |
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| 404 | builder.append(" ");
|
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| 405 | } |
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| 406 | builder.append(((JSONArray)x).getString(i)); |
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| 407 | } |
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| 408 | this.description = builder.toString();
|
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| 409 | } else {
|
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| 410 | this.description = x.toString();
|
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| 411 | } |
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| 412 | this.description = StringUtils.replace(
|
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| 413 | this.description,
|
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| 414 | "@@@",
|
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| 415 | url.toString() |
||
| 416 | ); |
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| 417 | } |
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| 418 | if( json.has("template") ) { |
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| 419 | this.template = json.getString("template"); |
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| 420 | } |
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| 421 | if( json.has("returnType") ) { |
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| 422 | this.returnType = json.getString("returnType"); |
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| 423 | } |
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| 424 | if( json.has("sqlCompatible") ) { |
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| 425 | this.sqlCompatible = json.getBoolean("sqlCompatible"); |
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| 426 | } |
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| 427 | if( json.has("args") ) { |
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| 428 | JSONArray x = json.getJSONArray("args");
|
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| 429 | String[] args = new String[x.length()]; |
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| 430 | for (int i = 0; i < x.length(); i++) { |
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| 431 | args[i] = x.getString(i); |
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| 432 | } |
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| 433 | this.descriptionArgs = args;
|
||
| 434 | } |
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| 435 | if( json.has("alias") ) { |
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| 436 | JSONArray x = json.getJSONArray("alias");
|
||
| 437 | for (int i = 0; i < x.length(); i++) { |
||
| 438 | this.addAlias(x.getString(i));
|
||
| 439 | } |
||
| 440 | } |
||
| 441 | } |
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| 442 | 43512 | jjdelcerro | } |