Revision 45932 trunk/org.gvsig.desktop/org.gvsig.desktop.library/org.gvsig.expressionevaluator/org.gvsig.expressionevaluator.lib/org.gvsig.expressionevaluator.lib.impl/src/main/java/org/gvsig/expressionevaluator/impl/DefaultExpressionEvaluatorManager.java

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DefaultExpressionEvaluatorManager.java
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package org.gvsig.expressionevaluator.impl;
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import org.gvsig.expressionevaluator.spi.BaseExpressionEvaluator;


  		




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import java.io.InputStream;


  		




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import java.io.StringWriter;


  		




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import java.net.URI;


  		




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import java.util.ArrayList;


  		




  ......




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import org.gvsig.expressionevaluator.SymbolTableFactory;


  		




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import org.gvsig.expressionevaluator.Compiler;


  		




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import org.gvsig.expressionevaluator.ExpressionEvaluator;


  		




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import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator;


  		




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import org.gvsig.expressionevaluator.Formatter;


  		




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import org.gvsig.expressionevaluator.GrammarSet;


  		




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import org.gvsig.expressionevaluator.ReprMethod;


  		




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import org.gvsig.tools.ToolsLocator;


  		




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import org.gvsig.tools.bookmarksandhistory.Bookmarks;


  		




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import org.gvsig.tools.bookmarksandhistory.History;


  		




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import org.gvsig.tools.bookmarksandhistory.impl.BaseBookmarks;


  		




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import org.gvsig.tools.bookmarksandhistory.impl.BaseHistory;


  		




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import org.gvsig.tools.evaluator.Evaluator;


  		




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import org.gvsig.tools.resourcesstorage.ResourcesStorage;


  		




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import org.gvsig.tools.script.Script;


  		




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import org.slf4j.Logger;


  		




  ......




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    private History<Expression> history;


  		




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    private SymbolTable inmutableSymbolTable;


  		




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    private ResourcesStorage scriptsResourcesStorage;


  		




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    private List<ClassLoader> loaders;


  		




  
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    private final List<ClassLoader> loaders;


  		




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    private Formatter<ExpressionBuilder.Value> expressionBuilderFormatter;


  		




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    public DefaultExpressionEvaluatorManager() {


  		




  ......




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    @Override


  		




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    public Code compile(String source) {


  		




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        Compiler compiler = this.createCompiler();


  		




  
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        if( StringUtils.isBlank(source) ) {


  		




  
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            return compiler.getCodeBuilder().constant(null);


  		




  
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        }


  		




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        return compiler.compileExpression(source);


  		




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    }


  		




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        return theSymbolTable;


  		




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    }


  		




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    @Override


  		




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    public void populateSymbolTable(SymbolTable aSymbolTable) {


  		




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        for (SymbolTableFactory factory : this.getSymbolTableFactories() ) {


  		




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            try {


  		












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