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 / ExpressionUtils.java @ 44408
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| 1 | 44163 | jjdelcerro | package org.gvsig.expressionevaluator; |
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| 2 | |||
| 3 | 44389 | jjdelcerro | import java.io.File; |
| 4 | 44397 | jjdelcerro | import org.apache.commons.lang3.ArrayUtils; |
| 5 | 44215 | jjdelcerro | import org.apache.commons.lang3.StringUtils; |
| 6 | 44198 | jjdelcerro | import org.gvsig.expressionevaluator.ExpressionBuilder.Value; |
| 7 | 44163 | jjdelcerro | import org.gvsig.tools.script.Script; |
| 8 | |||
| 9 | /**
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| 10 | *
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| 11 | * @author jjdelcerro
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| 12 | */
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| 13 | public class ExpressionUtils { |
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| 14 | |||
| 15 | public static boolean isEmpty(Expression expression) { |
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| 16 | return expression == null || expression.isEmpty(); |
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| 17 | } |
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| 18 | |||
| 19 | public static boolean isPhraseEmpty(Expression expression) { |
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| 20 | return expression == null || expression.isPhraseEmpty(); |
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| 21 | } |
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| 22 | |||
| 23 | public static Expression defaultIfEmpty(Expression expression, Expression defaultValue) { |
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| 24 | if( expression==null || expression.isEmpty() ) { |
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| 25 | return defaultValue;
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| 26 | } |
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| 27 | return expression;
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| 28 | } |
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| 29 | |||
| 30 | public static Expression defaultNullIfEmpty(Expression expression) { |
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| 31 | if( expression==null || expression.isEmpty() ) { |
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| 32 | return null; |
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| 33 | } |
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| 34 | return expression;
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| 35 | } |
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| 36 | |||
| 37 | public static Expression defaultIfPhraseEmpty(Expression expression, Expression defaultValue) { |
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| 38 | if( expression==null || expression.isPhraseEmpty() ) { |
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| 39 | return defaultValue;
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| 40 | } |
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| 41 | return expression;
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| 42 | } |
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| 43 | |||
| 44 | public static Expression defaultNullIfPhraseEmpty(Expression expression) { |
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| 45 | if( expression==null || expression.isPhraseEmpty() ) { |
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| 46 | return null; |
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| 47 | } |
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| 48 | return expression;
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| 49 | } |
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| 50 | |||
| 51 | public static Expression createExpression() { |
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| 52 | Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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| 53 | return expression;
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| 54 | } |
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| 55 | |||
| 56 | public static Expression createExpression(String phrase) { |
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| 57 | 44215 | jjdelcerro | if( StringUtils.isBlank(phrase) ) {
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| 58 | return null; |
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| 59 | } |
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| 60 | 44163 | jjdelcerro | Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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| 61 | expression.setPhrase(phrase); |
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| 62 | return expression;
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| 63 | } |
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| 64 | |||
| 65 | public static Expression createExpression(String phrase, String code, Script... scripts) { |
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| 66 | Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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| 67 | expression.setPhrase(phrase); |
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| 68 | expression.setUserScript(code); |
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| 69 | for (Script script : scripts) {
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| 70 | expression.addScript(script); |
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| 71 | } |
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| 72 | return expression;
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| 73 | } |
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| 74 | |||
| 75 | public static Expression createExpression(String phrase, String code, String languaje, Script... scripts) { |
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| 76 | Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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| 77 | expression.setPhrase(phrase); |
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| 78 | expression.setUserScript(code, languaje); |
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| 79 | for (Script script : scripts) {
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| 80 | expression.addScript(script); |
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| 81 | } |
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| 82 | return expression;
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| 83 | } |
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| 84 | 44198 | jjdelcerro | |
| 85 | public static ExpressionBuilder createExpressionBuilder() { |
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| 86 | ExpressionBuilder builder = ExpressionEvaluatorLocator.getManager().createExpressionBuilder(); |
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| 87 | return builder;
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| 88 | } |
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| 89 | |||
| 90 | public static Code compile(String expression) { |
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| 91 | 44215 | jjdelcerro | if( StringUtils.isBlank(expression) ) {
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| 92 | return null; |
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| 93 | } |
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| 94 | 44198 | jjdelcerro | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
| 95 | Code code = manager.compile(expression); |
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| 96 | return code;
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| 97 | } |
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| 98 | |||
| 99 | 44346 | jjdelcerro | public static Object evaluate(String expression) { |
| 100 | return evaluate(null, expression); |
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| 101 | } |
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| 102 | |||
| 103 | 44198 | jjdelcerro | public static Object evaluate(SymbolTable symbolTable, String expression) { |
| 104 | 44215 | jjdelcerro | if( StringUtils.isBlank(expression) ) {
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| 105 | return null; |
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| 106 | } |
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| 107 | 44346 | jjdelcerro | if( symbolTable==null ) { |
| 108 | symbolTable = createSymbolTable(); |
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| 109 | } |
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| 110 | 44198 | jjdelcerro | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
| 111 | Object x = manager.evaluate(symbolTable, expression);
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| 112 | return x;
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| 113 | } |
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| 114 | |||
| 115 | public static Object evaluate(SymbolTable symbolTable, Code code) { |
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| 116 | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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| 117 | Object x = manager.evaluate(symbolTable, code);
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| 118 | return x;
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| 119 | } |
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| 120 | |||
| 121 | public static Code optimize(SymbolTable symbolTable, Code code) { |
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| 122 | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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| 123 | code = manager.optimize(symbolTable, code); |
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| 124 | return code;
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| 125 | } |
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| 126 | |||
| 127 | public static String toString(Value value, Formatter formatter) { |
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| 128 | if( value == null ) { |
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| 129 | return null; |
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| 130 | } |
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| 131 | if( formatter==null ) { |
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| 132 | formatter = ExpressionBuilder.EMPTY_FORMATTER; |
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| 133 | } |
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| 134 | return value.toString(formatter);
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| 135 | } |
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| 136 | |||
| 137 | public static String toString(Value value) { |
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| 138 | if( value == null ) { |
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| 139 | return null; |
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| 140 | } |
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| 141 | return value.toString(ExpressionBuilder.EMPTY_FORMATTER);
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| 142 | } |
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| 143 | |||
| 144 | public static String toString(Code code, Formatter formatter) { |
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| 145 | if( code == null ) { |
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| 146 | return null; |
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| 147 | } |
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| 148 | if( formatter==null ) { |
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| 149 | formatter = Code.EMPTY_FORMATTER; |
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| 150 | } |
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| 151 | return code.toString(formatter);
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| 152 | } |
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| 153 | |||
| 154 | public static String toString(Code code) { |
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| 155 | if( code == null ) { |
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| 156 | return null; |
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| 157 | } |
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| 158 | return code.toString(Code.EMPTY_FORMATTER);
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| 159 | } |
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| 160 | |||
| 161 | 44215 | jjdelcerro | public static Expression createExpressionFromJSON(String json) { |
| 162 | Expression expression = ExpressionUtils.createExpression();
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| 163 | expression.fromJSON(json); |
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| 164 | return expression;
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| 165 | } |
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| 166 | |||
| 167 | public static MutableSymbolTable createSymbolTable() { |
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| 168 | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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| 169 | MutableSymbolTable symbolTable = manager.createSymbolTable(); |
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| 170 | return symbolTable;
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| 171 | } |
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| 172 | 44397 | jjdelcerro | |
| 173 | 44408 | jjdelcerro | public static String surroundByDynamicTextTag(String source) { |
| 174 | return surroundByDynamicTextTag(source, true); |
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| 175 | } |
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| 176 | |||
| 177 | public static String surroundByDynamicTextTag(String source, boolean insert) { |
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| 178 | if( source==null ) { |
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| 179 | return null; |
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| 180 | } |
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| 181 | if( insert ) {
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| 182 | return "<%=" + source + "%>"; |
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| 183 | } |
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| 184 | return "<%" + source + "%>"; |
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| 185 | } |
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| 186 | |||
| 187 | 44397 | jjdelcerro | public static boolean isDynamicText(String source) { |
| 188 | String[] sources = StringUtils.substringsBetween(source, "<%", "%>"); |
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| 189 | if( ArrayUtils.isEmpty(sources) ) {
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| 190 | return false; |
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| 191 | } |
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| 192 | return true; |
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| 193 | } |
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| 194 | 44215 | jjdelcerro | |
| 195 | 44397 | jjdelcerro | public static String evaluateDynamicText(String source) { |
| 196 | 44389 | jjdelcerro | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
| 197 | 44397 | jjdelcerro | return manager.evaluateDynamicText(source);
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| 198 | 44389 | jjdelcerro | } |
| 199 | |||
| 200 | 44397 | jjdelcerro | public static String evaluateDynamicText(SymbolTable symbolTable, String source) { |
| 201 | 44389 | jjdelcerro | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
| 202 | 44397 | jjdelcerro | return manager.evaluateDynamicText(symbolTable, source);
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| 203 | 44389 | jjdelcerro | } |
| 204 | |||
| 205 | 44390 | jjdelcerro | public static File evaluateFilename(File source) { |
| 206 | 44389 | jjdelcerro | return evaluateFilename(null, source); |
| 207 | } |
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| 208 | 44397 | jjdelcerro | |
| 209 | public static boolean isDynamicFilename(File source) { |
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| 210 | if( source == null ) { |
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| 211 | return false; |
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| 212 | } |
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| 213 | return isDynamicText(source.getPath());
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| 214 | } |
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| 215 | 44389 | jjdelcerro | |
| 216 | @SuppressWarnings("StringEquality") |
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| 217 | 44390 | jjdelcerro | public static File evaluateFilename(SymbolTable symbolTable, File source) { |
| 218 | 44389 | jjdelcerro | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
| 219 | String src = source.getPath();
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| 220 | 44397 | jjdelcerro | String r = manager.evaluateDynamicText(symbolTable, src);
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| 221 | 44389 | jjdelcerro | if( r == src ) { // !!! I compare that it is the same pointer, it is what I want. |
| 222 | return source;
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| 223 | } |
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| 224 | File f = new File(r); |
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| 225 | return f;
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| 226 | } |
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| 227 | |||
| 228 | 44163 | jjdelcerro | } |