/*
* Copyright (C) 2007 Sun Microsystems, Inc. All rights reserved. Use is
* subject to license terms.
*/
package org.jdesktop.el.impl.lang;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import org.jdesktop.el.ELContext;
import org.jdesktop.el.ELResolver;
import org.jdesktop.el.Expression;
import org.jdesktop.el.FunctionMapper;
import org.jdesktop.el.VariableMapper;
public final class EvaluationContext extends ELContext {
private final ELContext elContext;
private final FunctionMapper fnMapper;
private final VariableMapper varMapper;
private final Expression expression;
private final Set<Expression.ResolvedProperty> currentIdentifierProperties;
private final Set<Expression.ResolvedProperty> resolvedProperties;
public EvaluationContext(ELContext elContext, FunctionMapper fnMapper,
VariableMapper varMapper, Expression expression) {
this(elContext, fnMapper, varMapper, expression, false);
}
public EvaluationContext(ELContext elContext, FunctionMapper fnMapper,
VariableMapper varMapper, Expression expression, boolean trackResolvedProperties) {
this.elContext = elContext;
this.fnMapper = fnMapper;
this.varMapper = varMapper;
this.expression = expression;
if (trackResolvedProperties) {
resolvedProperties = new LinkedHashSet<Expression.ResolvedProperty>(1);
currentIdentifierProperties = new LinkedHashSet<Expression.ResolvedProperty>(1);
} else {
resolvedProperties = null;
currentIdentifierProperties = null;
}
}
public ELContext getELContext() {
return this.elContext;
}
public FunctionMapper getFunctionMapper() {
return this.fnMapper;
}
public VariableMapper getVariableMapper() {
return this.varMapper;
}
public Expression getExpression() {
return expression;
}
public Object getContext(Class key) {
return this.elContext.getContext(key);
}
public ELResolver getELResolver() {
return this.elContext.getELResolver();
}
public boolean isPropertyResolved() {
return this.elContext.isPropertyResolved();
}
public void putContext(Class key, Object contextObject) {
this.elContext.putContext(key, contextObject);
}
public void setPropertyResolved(boolean resolved) {
this.elContext.setPropertyResolved(resolved);
}
public void clearResolvedProperties() {
if (resolvedProperties == null) {
return;
}
resolvedProperties.clear();
}
public void resolvedIdentifier(Object base, Object property) {
if (base == null || property == null || resolvedProperties == null) {
return;
}
resolvedProperties.addAll(currentIdentifierProperties);
currentIdentifierProperties.clear();
Expression.ResolvedProperty prop = new Expression.ResolvedProperty(base, property);
resolvedProperties.remove(prop);
currentIdentifierProperties.add(prop);
}
public void resolvedProperty(Object base, Object property) {
if (base == null || property == null || resolvedProperties == null) {
return;
}
Expression.ResolvedProperty prop = new Expression.ResolvedProperty(base, property);
resolvedProperties.remove(prop);
currentIdentifierProperties.add(prop);
}
public List<Expression.ResolvedProperty> getResolvedProperties() {
if (resolvedProperties == null) {
return null;
}
resolvedProperties.addAll(currentIdentifierProperties);
return new ArrayList<Expression.ResolvedProperty>(resolvedProperties);
}
}