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 @ 45527
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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.tools.util.ListBuilder; |
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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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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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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 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( !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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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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public static int parseInt(SymbolTable symbolTable, String expression, int defaultValue) { |
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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); |
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return value;
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} catch(Exception ex) { |
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|
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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); |
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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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} |
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return defaultValue;
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} |
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|
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public static long parseLong(SymbolTable symbolTable, String expression, long defaultValue) { |
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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); |
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return value;
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} catch(Exception ex) { |
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|
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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); |
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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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} |
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return defaultValue;
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} |
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|
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public static double parseDouble(SymbolTable symbolTable, String expression, double defaultValue) { |
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if( StringUtils.isBlank(expression) ) {
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return defaultValue;
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} |
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try {
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double value = Double.parseDouble(expression); |
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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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Object x;
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try {
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x = manager.evaluate(symbolTable, expression); |
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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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} |
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return defaultValue;
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} |
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private static final Pattern COLOR_PATTERN3 = Pattern.compile("COLOR[(][ ]*(?<R>[0-9]{1,3})[ ]*,[ ]*(?<G>[0-9]{1,3})[ ]*,[ ]*(?<A>[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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public static Color parseColor(SymbolTable symbolTable, String expression, Color defaultValue) { |
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if( StringUtils.isBlank(expression) ) {
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return defaultValue;
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} |
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try {
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if( StringUtils.startsWithIgnoreCase(expression, "color(") && |
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StringUtils.endsWithIgnoreCase(expression, ")")) {
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Matcher m = COLOR_PATTERN4.matcher(expression);
|
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if( m != null && m.matches()) { |
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Color color = new Color( |
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Integer.valueOf(m.group("R")), |
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Integer.valueOf(m.group("G")), |
| 509 |
Integer.valueOf(m.group("B")), |
| 510 |
Integer.valueOf(m.group("A")) |
| 511 |
); |
| 512 |
return color;
|
| 513 |
} |
| 514 |
m = COLOR_PATTERN3.matcher(expression); |
| 515 |
if( m != null && m.matches()) { |
| 516 |
Color color = new Color( |
| 517 |
Integer.valueOf(m.group("R")), |
| 518 |
Integer.valueOf(m.group("G")), |
| 519 |
Integer.valueOf(m.group("B")), |
| 520 |
Integer.valueOf(m.group("A")) |
| 521 |
); |
| 522 |
return color;
|
| 523 |
} |
| 524 |
} |
| 525 |
ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
| 526 |
Object x;
|
| 527 |
x = manager.evaluate(symbolTable, expression); |
| 528 |
if( x instanceof Color ) { |
| 529 |
return (Color) x; |
| 530 |
} |
| 531 |
if( x instanceof Number ) { |
| 532 |
return new Color(((Number) x).intValue()); |
| 533 |
} |
| 534 |
} catch(Exception ex) { |
| 535 |
} |
| 536 |
return defaultValue;
|
| 537 |
} |
| 538 |
|
| 539 |
public static Color parseColor(String expression) { |
| 540 |
if( StringUtils.isBlank(expression) ) {
|
| 541 |
throw new IllegalArgumentException("Can't get color from a blank string."); |
| 542 |
} |
| 543 |
Object x;
|
| 544 |
try {
|
| 545 |
if( StringUtils.startsWithIgnoreCase(expression, "color(") && |
| 546 |
StringUtils.endsWithIgnoreCase(expression, ")")) {
|
| 547 |
Matcher m = COLOR_PATTERN4.matcher(expression);
|
| 548 |
if( m != null && m.matches()) { |
| 549 |
Color color = new Color( |
| 550 |
Integer.valueOf(m.group("R")), |
| 551 |
Integer.valueOf(m.group("G")), |
| 552 |
Integer.valueOf(m.group("B")), |
| 553 |
Integer.valueOf(m.group("A")) |
| 554 |
); |
| 555 |
return color;
|
| 556 |
} |
| 557 |
m = COLOR_PATTERN3.matcher(expression); |
| 558 |
if( m != null && m.matches()) { |
| 559 |
Color color = new Color( |
| 560 |
Integer.valueOf(m.group("R")), |
| 561 |
Integer.valueOf(m.group("G")), |
| 562 |
Integer.valueOf(m.group("B")), |
| 563 |
Integer.valueOf(m.group("A")) |
| 564 |
); |
| 565 |
return color;
|
| 566 |
} |
| 567 |
} |
| 568 |
ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
| 569 |
x = manager.evaluate(null, expression);
|
| 570 |
if( x instanceof Color ) { |
| 571 |
return (Color) x; |
| 572 |
} |
| 573 |
if( x instanceof Number ) { |
| 574 |
return new Color(((Number) x).intValue()); |
| 575 |
} |
| 576 |
} catch(Exception ex) { |
| 577 |
IllegalArgumentException ex1 = new IllegalArgumentException("Can't get color from '"+expression+"'."); |
| 578 |
ex1.initCause(ex); |
| 579 |
throw ex;
|
| 580 |
} |
| 581 |
if( x == null ) { |
| 582 |
throw new IllegalArgumentException("Can't get double from '"+expression+"' value is null."); |
| 583 |
} |
| 584 |
throw new IllegalArgumentException("Can't get double from '"+expression+"' value is a "+x.getClass().getSimpleName()+"."); |
| 585 |
} |
| 586 |
|
| 587 |
} |
| 588 |
|