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 @ 44198
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1 | 44163 | jjdelcerro | package org.gvsig.expressionevaluator; |
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2 | |||
3 | 44198 | jjdelcerro | import org.gvsig.expressionevaluator.ExpressionBuilder.Value; |
4 | 44163 | jjdelcerro | import org.gvsig.tools.script.Script; |
5 | |||
6 | /**
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7 | *
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8 | * @author jjdelcerro
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9 | */
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10 | public class ExpressionUtils { |
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11 | |||
12 | public static boolean isEmpty(Expression expression) { |
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13 | return expression == null || expression.isEmpty(); |
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14 | } |
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15 | |||
16 | public static boolean isPhraseEmpty(Expression expression) { |
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17 | return expression == null || expression.isPhraseEmpty(); |
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18 | } |
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19 | |||
20 | public static Expression defaultIfEmpty(Expression expression, Expression defaultValue) { |
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21 | if( expression==null || expression.isEmpty() ) { |
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22 | return defaultValue;
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23 | } |
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24 | return expression;
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25 | } |
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26 | |||
27 | public static Expression defaultNullIfEmpty(Expression expression) { |
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28 | if( expression==null || expression.isEmpty() ) { |
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29 | return null; |
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30 | } |
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31 | return expression;
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32 | } |
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33 | |||
34 | public static Expression defaultIfPhraseEmpty(Expression expression, Expression defaultValue) { |
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35 | if( expression==null || expression.isPhraseEmpty() ) { |
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36 | return defaultValue;
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37 | } |
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38 | return expression;
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39 | } |
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40 | |||
41 | public static Expression defaultNullIfPhraseEmpty(Expression expression) { |
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42 | if( expression==null || expression.isPhraseEmpty() ) { |
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43 | return null; |
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44 | } |
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45 | return expression;
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46 | } |
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47 | |||
48 | public static Expression createExpression() { |
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49 | Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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50 | return expression;
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51 | } |
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52 | |||
53 | public static Expression createExpression(String phrase) { |
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54 | Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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55 | expression.setPhrase(phrase); |
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56 | return expression;
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57 | } |
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58 | |||
59 | public static Expression createExpression(String phrase, String code, Script... scripts) { |
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60 | Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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61 | expression.setPhrase(phrase); |
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62 | expression.setUserScript(code); |
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63 | for (Script script : scripts) {
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64 | expression.addScript(script); |
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65 | } |
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66 | return expression;
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67 | } |
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68 | |||
69 | public static Expression createExpression(String phrase, String code, String languaje, Script... scripts) { |
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70 | Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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71 | expression.setPhrase(phrase); |
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72 | expression.setUserScript(code, languaje); |
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73 | for (Script script : scripts) {
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74 | expression.addScript(script); |
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75 | } |
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76 | return expression;
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77 | } |
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78 | 44198 | jjdelcerro | |
79 | public static ExpressionBuilder createExpressionBuilder() { |
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80 | ExpressionBuilder builder = ExpressionEvaluatorLocator.getManager().createExpressionBuilder(); |
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81 | return builder;
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82 | } |
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83 | |||
84 | public static Code compile(String expression) { |
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85 | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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86 | Code code = manager.compile(expression); |
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87 | return code;
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88 | } |
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89 | |||
90 | public static Object evaluate(SymbolTable symbolTable, String expression) { |
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91 | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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92 | Object x = manager.evaluate(symbolTable, expression);
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93 | return x;
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94 | } |
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95 | |||
96 | public static Object evaluate(SymbolTable symbolTable, Code code) { |
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97 | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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98 | Object x = manager.evaluate(symbolTable, code);
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99 | return x;
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100 | } |
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101 | |||
102 | public static Code optimize(SymbolTable symbolTable, Code code) { |
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103 | ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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104 | code = manager.optimize(symbolTable, code); |
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105 | return code;
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106 | } |
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107 | |||
108 | public static String toString(Value value, Formatter formatter) { |
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109 | if( value == null ) { |
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110 | return null; |
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111 | } |
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112 | if( formatter==null ) { |
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113 | formatter = ExpressionBuilder.EMPTY_FORMATTER; |
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114 | } |
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115 | return value.toString(formatter);
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116 | } |
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117 | |||
118 | public static String toString(Value value) { |
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119 | if( value == null ) { |
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120 | return null; |
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121 | } |
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122 | return value.toString(ExpressionBuilder.EMPTY_FORMATTER);
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123 | } |
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124 | |||
125 | public static String toString(Code code, Formatter formatter) { |
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126 | if( code == null ) { |
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127 | return null; |
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128 | } |
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129 | if( formatter==null ) { |
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130 | formatter = Code.EMPTY_FORMATTER; |
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131 | } |
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132 | return code.toString(formatter);
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133 | } |
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134 | |||
135 | public static String toString(Code code) { |
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136 | if( code == null ) { |
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137 | return null; |
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138 | } |
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139 | return code.toString(Code.EMPTY_FORMATTER);
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140 | } |
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141 | |||
142 | 44163 | jjdelcerro | } |