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 @ 45789
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package org.gvsig.expressionevaluator; |
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import java.awt.Color; |
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import java.io.File; |
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import java.net.MalformedURLException; |
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import java.net.URL; |
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import java.util.List; |
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import java.util.regex.Matcher; |
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import java.util.regex.Pattern; |
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import org.apache.commons.lang3.ArrayUtils; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.expressionevaluator.ExpressionBuilder.Value; |
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import static org.gvsig.expressionevaluator.ExpressionEvaluatorManager.DYNAMICTEXT_ENDTAG; |
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import static org.gvsig.expressionevaluator.ExpressionEvaluatorManager.DYNAMICTEXT_STARTTAG; |
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import org.gvsig.expressionevaluator.spi.DynObjectSymbolTable; |
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import org.gvsig.tools.dataTypes.DataTypeUtils; |
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import org.gvsig.tools.dynobject.DynObject; |
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import org.gvsig.tools.util.ListBuilder; |
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|
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/**
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*
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* @author gvSIG Team
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*/
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@SuppressWarnings("UseSpecificCatch") |
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public class ExpressionUtils { |
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|
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public static boolean isEmpty(Expression expression) { |
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return expression == null || expression.isEmpty(); |
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} |
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public static boolean isPhraseEmpty(Expression expression) { |
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return expression == null || expression.isPhraseEmpty(); |
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} |
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public static Expression defaultIfEmpty(Expression expression, Expression defaultValue) { |
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if( expression==null || expression.isEmpty() ) { |
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return defaultValue;
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} |
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return expression;
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} |
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public static Expression defaultNullIfEmpty(Expression expression) { |
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if( expression==null || expression.isEmpty() ) { |
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return null; |
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} |
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return expression;
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} |
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|
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public static Expression defaultIfPhraseEmpty(Expression expression, Expression defaultValue) { |
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if( expression==null || expression.isPhraseEmpty() ) { |
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return defaultValue;
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} |
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return expression;
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} |
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public static Expression defaultNullIfPhraseEmpty(Expression expression) { |
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if( expression==null || expression.isPhraseEmpty() ) { |
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return null; |
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} |
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return expression;
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} |
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public static Expression createExpression() { |
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Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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return expression;
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} |
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public static Expression createExpression(String phrase) { |
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if( StringUtils.isBlank(phrase) ) {
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return null; |
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} |
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Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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expression.setPhrase(phrase); |
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return expression;
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} |
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// public static Expression createExpression(String phrase, String code, Script... scripts) {
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// Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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// expression.setPhrase(phrase);
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// expression.setUserScript(code);
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// for (Script script : scripts) {
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// expression.addScript(script);
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// }
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// return expression;
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// }
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//
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// public static Expression createExpression(String phrase, String code, String languaje, Script... scripts) {
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// Expression expression = ExpressionEvaluatorLocator.getManager().createExpression();
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// expression.setPhrase(phrase);
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// expression.setUserScript(code, languaje);
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// for (Script script : scripts) {
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// expression.addScript(script);
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// }
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// return expression;
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// }
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public static ExpressionBuilder createExpressionBuilder() { |
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ExpressionBuilder builder = ExpressionEvaluatorLocator.getManager().createExpressionBuilder(); |
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return builder;
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} |
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public static Code compile(String expression) { |
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if( StringUtils.isBlank(expression) ) {
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return null; |
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} |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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Code code = manager.compile(expression); |
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return code;
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} |
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public static Object evaluate(String expression) { |
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return evaluate(null, expression); |
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} |
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public static Object evaluate(SymbolTable symbolTable, String expression) { |
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if( StringUtils.isBlank(expression) ) {
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return null; |
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} |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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Object x = manager.evaluate(symbolTable, expression);
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return x;
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} |
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public static Object evaluate(SymbolTable symbolTable, Code code) { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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Object x = manager.evaluate(symbolTable, code);
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return x;
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} |
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public static Code optimize(SymbolTable symbolTable, Code code) { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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code = manager.optimize(symbolTable, code); |
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return code;
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} |
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public static String toString(Value value, Formatter formatter) { |
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if( value == null ) { |
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return null; |
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} |
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if( formatter==null ) { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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formatter = manager.getExpressionBuilderFormatter(); |
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} |
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return value.toString(formatter);
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} |
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public static String toString(Value value) { |
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return toString(value, null); |
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} |
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public static String toString(Code code, Formatter formatter) { |
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if( code == null ) { |
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return null; |
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} |
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if( formatter==null ) { |
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formatter = Code.EMPTY_FORMATTER; |
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} |
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return code.toString(formatter);
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} |
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public static String toString(Code code) { |
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return toString(code, null); |
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} |
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public static Expression createExpressionFromJSON(String json) { |
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Expression expression = ExpressionUtils.createExpression();
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expression.fromJSON(json); |
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return expression;
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} |
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public static MutableSymbolTable createSymbolTable() { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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MutableSymbolTable symbolTable = manager.createSymbolTable(); |
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return symbolTable;
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} |
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public static MutableSymbolTable createSymbolTable(DynObject obj) { |
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DynObjectSymbolTable symbolTable = new DynObjectSymbolTable("object",obj); |
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return symbolTable;
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} |
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public static MutableSymbolTable createSymbolTable(String name, DynObject obj) { |
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DynObjectSymbolTable symbolTable = new DynObjectSymbolTable(name, obj);
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return symbolTable;
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} |
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public static String surroundByDynamicTextTag(String source) { |
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return surroundByDynamicTextTag(source, true); |
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} |
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public static String surroundByDynamicTextTag(String source, boolean insert) { |
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if( source==null ) { |
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return null; |
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} |
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if( insert ) {
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return DYNAMICTEXT_STARTTAG+ "=" + source + DYNAMICTEXT_ENDTAG; |
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} |
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return DYNAMICTEXT_STARTTAG + source + DYNAMICTEXT_ENDTAG;
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} |
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public static boolean isDynamicText(String source) { |
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if( StringUtils.isBlank(source) || !source.contains(DYNAMICTEXT_STARTTAG) ) {
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return false; |
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} |
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String[] sources = StringUtils.substringsBetween(source, DYNAMICTEXT_STARTTAG, DYNAMICTEXT_ENDTAG); |
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if( ArrayUtils.isEmpty(sources) ) {
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return false; |
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} |
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return true; |
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} |
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public static String evaluateDynamicText(String source) { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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return manager.evaluateDynamicText(source);
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} |
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public static String evaluateDynamicText(SymbolTable symbolTable, String source) { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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return manager.evaluateDynamicText(symbolTable, source);
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} |
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public static File evaluateFilename(File source) { |
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return evaluateFilename(null, source); |
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} |
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public static URL evaluateURL(URL source) { |
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return evaluateURL(null, source); |
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} |
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public static boolean isDynamicFilename(File source) { |
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if( source == null ) { |
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return false; |
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} |
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return isDynamicText(source.getPath());
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} |
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public static boolean isDynamicURL(URL source) { |
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if( source == null ) { |
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return false; |
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} |
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return isDynamicText(source.toString());
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} |
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public static File createDynamicFile(Value builder) { |
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File f = new File(surroundByDynamicTextTag(builder.toString())); |
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return f;
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} |
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public static File createDynamicFile(String expression) { |
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File f = new File(surroundByDynamicTextTag(expression)); |
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return f;
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} |
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@SuppressWarnings("StringEquality") |
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public static File evaluateFilename(SymbolTable symbolTable, File source) { |
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String src = source.getPath();
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if( !isDynamicText(src) ) {
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return source;
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} |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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String r = manager.evaluateDynamicText(symbolTable, src);
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if( r == src ) { // !!! I compare that it is the same pointer, it is what I want. |
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return source;
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} |
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File f = new File(r); |
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return f;
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} |
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@SuppressWarnings("StringEquality") |
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public static URL evaluateURL(SymbolTable symbolTable, URL source) { |
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String src = source.toString();
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if( !isDynamicText(src) ) {
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return source;
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} |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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String r = manager.evaluateDynamicText(symbolTable, src);
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if( r == src ) { // !!! I compare that it is the same pointer, it is what I want. |
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return source;
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} |
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try {
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URL url = new URL(r); |
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return url;
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} catch (MalformedURLException ex) { |
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return source;
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} |
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} |
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public static int parseInt(String s) throws NumberFormatException { |
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if( StringUtils.isBlank(s) ) {
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throw new NumberFormatException("Can't get integer from a blank string."); |
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} |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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SymbolTable symbolTable = null; //manager.getInmutableSymbolTable(); |
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Object x;
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try {
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x = manager.evaluate(symbolTable, s); |
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if( x instanceof Number ) { |
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return ((Number) x).intValue(); |
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} |
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} catch(Exception ex) { |
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NumberFormatException ex1 = new NumberFormatException("Can't get integer from '"+s+"'."); |
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ex1.initCause(ex); |
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throw ex;
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} |
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if( x == null ) { |
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throw new NumberFormatException("Can't get integer from '"+s+"' value is null."); |
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} |
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throw new NumberFormatException("Can't get integer from '"+s+"' value is a "+x.getClass().getSimpleName()+"."); |
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} |
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public static long parseLong(String s) throws NumberFormatException { |
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if( StringUtils.isBlank(s) ) {
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throw new NumberFormatException("Can't get long from a blank string."); |
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} |
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try {
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int value = Integer.parseInt(s); |
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return value;
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} catch(Exception ex) { |
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} |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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SymbolTable symbolTable = null; //manager.getInmutableSymbolTable(); |
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Object x;
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try {
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x = manager.evaluate(symbolTable, s); |
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if( x instanceof Number ) { |
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return ((Number) x).longValue(); |
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} |
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} catch(Exception ex) { |
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NumberFormatException ex1 = new NumberFormatException("Can't get long from '"+s+"'."); |
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ex1.initCause(ex); |
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throw ex;
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} |
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if( x == null ) { |
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throw new NumberFormatException("Can't get long from '"+s+"' value is null."); |
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} |
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throw new NumberFormatException("Can't get long from '"+s+"' value is a "+x.getClass().getSimpleName()+"."); |
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} |
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public static double parseDouble(String s) throws NumberFormatException { |
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if( StringUtils.isBlank(s) ) {
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throw new NumberFormatException("Can't get double from a blank string."); |
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} |
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try {
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double value = Double.parseDouble(s); |
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return value;
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} catch(Exception ex) { |
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} |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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SymbolTable symbolTable = null; //manager.getInmutableSymbolTable(); |
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Object x;
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try {
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x = manager.evaluate(symbolTable, s); |
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if( x instanceof Number ) { |
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return ((Number) x).doubleValue(); |
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} |
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} catch(Exception ex) { |
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NumberFormatException ex1 = new NumberFormatException("Can't get double from '"+s+"'."); |
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ex1.initCause(ex); |
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throw ex;
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} |
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if( x == null ) { |
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throw new NumberFormatException("Can't get double from '"+s+"' value is null."); |
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} |
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throw new NumberFormatException("Can't get double from '"+s+"' value is a "+x.getClass().getSimpleName()+"."); |
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} |
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public static Compiler createCompiler() { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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Compiler compiler = manager.createCompiler();
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return compiler;
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} |
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public static Interpreter createInterpreter() { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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Interpreter interpreter = manager.createInterpreter(); |
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return interpreter;
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} |
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public static Optimizer createOptimizer() { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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Optimizer optimizer = manager.createOptimizer(); |
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return optimizer;
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} |
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public static String repr(Object value) { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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ReprMethod method = manager.getReprMethod(value); |
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return method.repr(value);
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} |
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public static CodeBuilder createCodeBuilder() { |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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return manager.createCodeBuilder();
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} |
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private static final List<String> TRUE_VALUES = ListBuilder.create("true","on","t", "1", "-1" ); |
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private static final List<String> FALSE_VALUES = ListBuilder.create("false","off","f", "0" ); |
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public static boolean parseBoolean(SymbolTable symbolTable, String expression, boolean defaultValue) { |
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expression = StringUtils.trimToNull(expression); |
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if( StringUtils.isBlank(expression) ) {
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return defaultValue;
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} |
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if( TRUE_VALUES.contains(expression.toLowerCase())) {
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return true; |
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} |
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if( FALSE_VALUES.contains(expression.toLowerCase())) {
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return false; |
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} |
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try {
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return (boolean) ExpressionUtils.evaluate(symbolTable, expression); |
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} catch(Exception ex) { |
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return defaultValue;
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} |
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} |
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|
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public static boolean parseBoolean(String expression) { |
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expression = StringUtils.trimToNull(expression); |
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if( StringUtils.isBlank(expression) ) {
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throw new IllegalArgumentException("Can't get boolean from a blank string."); |
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} |
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if( TRUE_VALUES.contains(expression.toLowerCase())) {
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return true; |
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} |
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if( FALSE_VALUES.contains(expression.toLowerCase())) {
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return false; |
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} |
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Object x;
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try {
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x = ExpressionUtils.evaluate(null, expression);
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return (boolean) x; |
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} catch(Exception ex) { |
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IllegalArgumentException ex1 = new IllegalArgumentException("Can't get boolean from '"+expression+"'."); |
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ex1.initCause(ex); |
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throw ex;
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} |
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} |
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|
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public static int parseInt(SymbolTable symbolTable, String expression, int defaultValue) { |
442 |
if( StringUtils.isBlank(expression) ) {
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return defaultValue;
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} |
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try {
|
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int value = Integer.parseInt(expression); |
447 |
return value;
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} catch(Exception ex) { |
449 |
|
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} |
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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Object x;
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try {
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x = manager.evaluate(symbolTable, expression); |
455 |
if( x instanceof Number ) { |
456 |
return ((Number) x).intValue(); |
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} |
458 |
} catch(Exception ex) { |
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} |
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return defaultValue;
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} |
462 |
|
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public static long parseLong(SymbolTable symbolTable, String expression, long defaultValue) { |
464 |
if( StringUtils.isBlank(expression) ) {
|
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return defaultValue;
|
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} |
467 |
try {
|
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int value = Integer.parseInt(expression); |
469 |
return value;
|
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} catch(Exception ex) { |
471 |
|
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} |
473 |
ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
474 |
Object x;
|
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try {
|
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x = manager.evaluate(symbolTable, expression); |
477 |
if( x instanceof Number ) { |
478 |
return ((Number) x).longValue(); |
479 |
} |
480 |
} catch(Exception ex) { |
481 |
} |
482 |
return defaultValue;
|
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} |
484 |
|
485 |
public static double parseDouble(SymbolTable symbolTable, String expression, double defaultValue) { |
486 |
if( StringUtils.isBlank(expression) ) {
|
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return defaultValue;
|
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} |
489 |
try {
|
490 |
double value = Double.parseDouble(expression); |
491 |
return value;
|
492 |
} catch(Exception ex) { |
493 |
|
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} |
495 |
ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
496 |
Object x;
|
497 |
try {
|
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x = manager.evaluate(symbolTable, expression); |
499 |
if( x instanceof Number ) { |
500 |
return ((Number) x).doubleValue(); |
501 |
} |
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} catch(Exception ex) { |
503 |
} |
504 |
return defaultValue;
|
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} |
506 |
|
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private static final Pattern COLOR_PATTERN3 = Pattern.compile("COLOR[(][ ]*(?<R>[0-9]{1,3})[ ]*,[ ]*(?<G>[0-9]{1,3})[ ]*,[ ]*(?<B>[0-9]{1,3})[ ]*[)]", Pattern.CASE_INSENSITIVE); |
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private static final Pattern COLOR_PATTERN4 = Pattern.compile("COLOR[(][ ]*(?<R>[0-9]{1,3})[ ]*,[ ]*(?<G>[0-9]{1,3})[ ]*,[ ]*(?<B>[0-9]{1,3})[ ]*,[ ]*(?<A>[0-9]{1,3})[ ]*[)]", Pattern.CASE_INSENSITIVE); |
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|
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public static Color parseColor(SymbolTable symbolTable, String expression, Color defaultValue) { |
511 |
if( StringUtils.isBlank(expression) ) {
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return defaultValue;
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} |
514 |
try {
|
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Color color;
|
516 |
if( StringUtils.startsWithIgnoreCase(expression, "color(") && |
517 |
StringUtils.endsWithIgnoreCase(expression, ")")) {
|
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Matcher m = COLOR_PATTERN4.matcher(expression);
|
519 |
if( m != null && m.matches()) { |
520 |
color = new Color( |
521 |
Integer.valueOf(m.group("R")), |
522 |
Integer.valueOf(m.group("G")), |
523 |
Integer.valueOf(m.group("B")), |
524 |
Integer.valueOf(m.group("A")) |
525 |
); |
526 |
return color;
|
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} |
528 |
m = COLOR_PATTERN3.matcher(expression); |
529 |
if( m != null && m.matches()) { |
530 |
color = new Color( |
531 |
Integer.valueOf(m.group("R")), |
532 |
Integer.valueOf(m.group("G")), |
533 |
Integer.valueOf(m.group("B")) |
534 |
); |
535 |
return color;
|
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} |
537 |
} |
538 |
ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
539 |
Object x;
|
540 |
x = manager.evaluate(symbolTable, expression); |
541 |
if( x instanceof Color ) { |
542 |
return (Color) x; |
543 |
} |
544 |
color = (Color) DataTypeUtils.coerce(DataTypes.COLOR, expression, null); |
545 |
if( color != null ) { |
546 |
return color;
|
547 |
} |
548 |
} catch(Exception ex) { |
549 |
} |
550 |
return defaultValue;
|
551 |
} |
552 |
|
553 |
public static Color parseColor(String expression) { |
554 |
if( StringUtils.isBlank(expression) ) {
|
555 |
throw new IllegalArgumentException("Can't get color from a blank string."); |
556 |
} |
557 |
Object x;
|
558 |
try {
|
559 |
if( StringUtils.startsWithIgnoreCase(expression, "color(") && |
560 |
StringUtils.endsWithIgnoreCase(expression, ")")) {
|
561 |
Matcher m = COLOR_PATTERN4.matcher(expression);
|
562 |
if( m != null && m.matches()) { |
563 |
Color color = new Color( |
564 |
Integer.valueOf(m.group("R")), |
565 |
Integer.valueOf(m.group("G")), |
566 |
Integer.valueOf(m.group("B")), |
567 |
Integer.valueOf(m.group("A")) |
568 |
); |
569 |
return color;
|
570 |
} |
571 |
m = COLOR_PATTERN3.matcher(expression); |
572 |
if( m != null && m.matches()) { |
573 |
Color color = new Color( |
574 |
Integer.valueOf(m.group("R")), |
575 |
Integer.valueOf(m.group("G")), |
576 |
Integer.valueOf(m.group("B")), |
577 |
Integer.valueOf(m.group("A")) |
578 |
); |
579 |
return color;
|
580 |
} |
581 |
} |
582 |
ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
583 |
x = manager.evaluate(null, expression);
|
584 |
if( x instanceof Color ) { |
585 |
return (Color) x; |
586 |
} |
587 |
if( x instanceof Number ) { |
588 |
return new Color(((Number) x).intValue()); |
589 |
} |
590 |
} catch(Exception ex) { |
591 |
IllegalArgumentException ex1 = new IllegalArgumentException("Can't get color from '"+expression+"'."); |
592 |
ex1.initCause(ex); |
593 |
throw ex;
|
594 |
} |
595 |
if( x == null ) { |
596 |
throw new IllegalArgumentException("Can't get double from '"+expression+"' value is null."); |
597 |
} |
598 |
throw new IllegalArgumentException("Can't get double from '"+expression+"' value is a "+x.getClass().getSimpleName()+"."); |
599 |
} |
600 |
|
601 |
} |
602 |
|