Revision 44009 trunk/org.gvsig.desktop/org.gvsig.desktop.compat.cdc/org.gvsig.fmap.dal/org.gvsig.fmap.dal.impl/src/main/java/org/gvsig/fmap/dal/impl/expressionevaluator/DefaultExpressionEvaluator.java
| DefaultExpressionEvaluator.java | ||
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import java.util.List; |
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import java.util.Set; |
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import org.gvsig.expressionevaluator.Code; |
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import org.gvsig.expressionevaluator.Interpreter; |
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import org.gvsig.expressionevaluator.SymbolTable; |
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import org.gvsig.expressionevaluator.Compiler; |
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import org.gvsig.expressionevaluator.Expression; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorManager; |
| ... | ... | |
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} |
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|
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private FeatureSymbolTable featureSymbolTable; |
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private Compiler compiler; |
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private Interpreter interpreter; |
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private Code code; |
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private SymbolTable symbolTable; |
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private Expression expression; |
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private Description[] availableOperators; |
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private Description[] availableFunctions; |
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|
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public DefaultExpressionEvaluator(String source) {
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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this.symbolTable = manager.createSymbolTable(); |
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this.featureSymbolTable = new DefaultFeatureSymbolTable(); |
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this.expression = ExpressionEvaluatorLocator.getManager().createExpression(); |
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this.symbolTable.addSymbolTable(this.featureSymbolTable); |
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|
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this.expression = manager.createExpression(); |
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this.expression.setPhrase(source); |
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} |
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|
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public DefaultExpressionEvaluator(Expression expression) {
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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this.expression = expression; |
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this.symbolTable = manager.createSymbolTable(); |
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this.featureSymbolTable = new DefaultFeatureSymbolTable( |
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expression.getUserScript(), |
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expression.getScripts() |
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); |
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this.symbolTable.addSymbolTable(this.featureSymbolTable); |
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|
|
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} |
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@Override |
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public Object evaluate(EvaluatorData data) throws EvaluatorException {
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if (this.code == null) {
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this.compile(); |
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} |
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Interpreter theInterpreter = this.getInterpreter(); |
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theInterpreter.getSymbolTable().addSymbolTable(this.featureSymbolTable); |
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|
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this.featureSymbolTable.setFeature((Feature) data); |
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Object v = this.interpreter.run(code);
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Object v = this.expression.execute(this.symbolTable);
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return v; |
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} |
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|
| ... | ... | |
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public EvaluatorFieldsInfo getFieldsInfo() {
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final Set<String> names = new HashSet<>(); |
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try {
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this.compile().accept(new Visitor() {
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this.expression.getCode().accept(new Visitor() {
|
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@Override |
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public void visit(Object code) throws VisitCanceledException, BaseException {
|
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if (code instanceof Code.Identifier) {
|
| ... | ... | |
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} |
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|
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private SymbolTable getSymbolTable() {
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return this.getInterpreter().getSymbolTable();
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return this.symbolTable;
|
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} |
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private Interpreter getInterpreter() {
|
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if (this.interpreter == null) {
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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this.interpreter = manager.createInterpreter(); |
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this.interpreter.setAccuracy(ExpressionEvaluatorLocator.getManager().getAccuracy()); |
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} |
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return interpreter; |
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} |
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|
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private Compiler getCompiler() {
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if (this.compiler == null) {
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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this.compiler = manager.createCompiler(); |
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} |
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return compiler; |
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} |
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|
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private Code compile() {
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if (this.code == null) {
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
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this.code = this.getCompiler().compileExpression(expression.getPhrase()); |
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} |
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return code; |
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} |
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|
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@Override |
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public Evaluator clone() throws CloneNotSupportedException {
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DefaultExpressionEvaluator other = (DefaultExpressionEvaluator) super.clone(); |
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other.code = this.code; |
|
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other.expression = this.expression.clone(); |
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other.availableFunctions = null; |
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other.availableOperators = null; |
| ... | ... | |
| 204 | 176 |
if (this.featureSymbolTable != null) {
|
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other.featureSymbolTable = this.featureSymbolTable.clone(); |
| 206 | 178 |
} |
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if (this.compiler != null) {
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other.compiler = this.compiler.clone();
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if (this.symbolTable != null) {
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other.symbolTable = this.symbolTable.clone();
|
|
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} |
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if (this.interpreter != null) {
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other.interpreter = this.interpreter.clone(); |
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} |
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return other; |
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} |
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