///
/// Returns an Evaluation that contains the node, source and whether it
/// is a set operation. If there are no Evaluation objects in the
/// pool one is created and returned.
///
public Evaluation create(SimpleNode node, object source, bool setOperation)
{
lock (this)
{
Evaluation result;
if (size > 0)
{
result = (Evaluation)evaluations [size - 1];
evaluations.RemoveAt(size - 1);
result.init(node, source, setOperation);
size--;
recovered++;
}
else
{
result = new Evaluation(node, source, setOperation);
created++;
}
return(result);
}
}
public object getValue(OgnlContext context, object source)
{
if (context.getTraceEvaluations())
{
EvaluationPool pool = OgnlRuntime.getEvaluationPool();
object result = null;
Exception evalException = null;
Evaluation evaluation = pool.create(this, source);
context.pushEvaluation(evaluation);
try {
result = evaluateGetValueBody(context, source);
} catch (OgnlException ex) {
evalException = ex;
throw ex;
} catch (Exception ex) {
evalException = ex;
throw ex;
} finally {
Evaluation eval = context.popEvaluation();
eval.setResult(result);
if (evalException != null)
{
eval.setException(evalException);
}
if ((evalException == null) && (context.getRootEvaluation() == null) && !context.getKeepLastEvaluation())
{
pool.recycleAll(eval);
}
}
return(result);
}
else
{
return(evaluateGetValueBody(context, source));
}
}
///<summary>
/// Adds a child to the list of children of this evaluation. The
/// parent of the child is set to the receiver and the children
/// references are modified in the receiver to reflect the new child.
/// The lastChild of the receiver is set to the child, and the
/// firstChild is set also if child is the first (or only) child.
///</summary>
public void addChild(Evaluation child)
{
if (firstChild == null)
{
firstChild = lastChild = child;
}
else
{
if (firstChild == lastChild)
{
firstChild.next = child;
lastChild = child;
lastChild.previous = firstChild;
}
else
{
child.previous = lastChild;
lastChild.next = child;
lastChild = child;
}
}
child.parent = this;
}
public void setValue(OgnlContext context, object target, object value)
{
if (context.getTraceEvaluations())
{
EvaluationPool pool = OgnlRuntime.getEvaluationPool();
Exception evalException = null;
Evaluation evaluation = pool.create(this, target, true);
context.pushEvaluation(evaluation);
try {
evaluateSetValueBody(context, target, value);
} catch (OgnlException ex) {
evalException = ex;
ex.setEvaluation(evaluation);
throw ex;
} catch (Exception ex) {
evalException = ex;
throw ex;
} finally {
Evaluation eval = context.popEvaluation();
if (evalException != null)
{
eval.setException(evalException);
}
if ((evalException == null) && (context.getRootEvaluation() == null) && !context.getKeepLastEvaluation())
{
pool.recycleAll(eval);
}
}
}
else
{
evaluateSetValueBody(context, target, value);
}
}
public object this [object key]
{
get
{
object result;
if (RESERVED_KEYS.Contains(key))
{
if (key.Equals(OgnlContext.THIS_CONTEXT_KEY))
{
result = getCurrentObject();
}
else
{
if (key.Equals(OgnlContext.ROOT_CONTEXT_KEY))
{
result = getRoot();
}
else
{
if (key.Equals(OgnlContext.CONTEXT_CONTEXT_KEY))
{
result = this;
}
else
{
if (key.Equals(OgnlContext.TRACE_EVALUATIONS_CONTEXT_KEY))
{
result = getTraceEvaluations() ? true : false;
}
else
{
if (key.Equals(OgnlContext.LAST_EVALUATION_CONTEXT_KEY))
{
result = getLastEvaluation();
}
else
{
if (key.Equals(OgnlContext.KEEP_LAST_EVALUATION_CONTEXT_KEY))
{
result = getKeepLastEvaluation() ? true : false;
}
else
{
if (key.Equals(OgnlContext.CLASS_RESOLVER_CONTEXT_KEY))
{
result = getClassResolver();
}
else
{
if (key.Equals(OgnlContext.TYPE_CONVERTER_CONTEXT_KEY))
{
result = getTypeConverter();
}
else
{
if (key.Equals(OgnlContext.MEMBER_ACCESS_CONTEXT_KEY))
{
result = getMemberAccess();
}
else
{
throw new ArgumentException("unknown reserved key '" + key + "'");
}
}
}
}
}
}
}
}
}
}
else
{
result = values [key];
}
return(result);
}
set
{
object result;
if (RESERVED_KEYS.Contains(key))
{
if (key.Equals(OgnlContext.THIS_CONTEXT_KEY))
{
result = getCurrentObject();
setCurrentObject(value);
}
else
{
if (key.Equals(OgnlContext.ROOT_CONTEXT_KEY))
{
result = getRoot();
setRoot(value);
}
else
{
if (key.Equals(OgnlContext.CONTEXT_CONTEXT_KEY))
{
throw new ArgumentException("can't change " + OgnlContext.CONTEXT_CONTEXT_KEY + " in context");
}
else
{
if (key.Equals(OgnlContext.TRACE_EVALUATIONS_CONTEXT_KEY))
{
result = getTraceEvaluations() ? true : false;
setTraceEvaluations(OgnlOps.booleanValue(value));
}
else
{
if (key.Equals(OgnlContext.LAST_EVALUATION_CONTEXT_KEY))
{
result = getLastEvaluation();
lastEvaluation = (Evaluation)value;
}
else
{
if (key.Equals(OgnlContext.KEEP_LAST_EVALUATION_CONTEXT_KEY))
{
result = getKeepLastEvaluation() ? true : false;
setKeepLastEvaluation(OgnlOps.booleanValue(value));
}
else
{
if (key.Equals(OgnlContext.CLASS_RESOLVER_CONTEXT_KEY))
{
result = getClassResolver();
setClassResolver((ClassResolver)value);
}
else
{
if (key.Equals(OgnlContext.TYPE_CONVERTER_CONTEXT_KEY))
{
result = getTypeConverter();
setTypeConverter((TypeConverter)value);
}
else
{
if (key.Equals(OgnlContext.MEMBER_ACCESS_CONTEXT_KEY))
{
result = getMemberAccess();
setMemberAccess((MemberAccess)value);
}
else
{
throw new ArgumentException("unknown reserved key '" + key + "'");
}
}
}
}
}
}
}
}
}
}
else
{
// result =
values.Add(key, value);
}
// return result;
}
}
public void setRootEvaluation(Evaluation value)
{
rootEvaluation = value;
}
public void setCurrentEvaluation(Evaluation value)
{
currentEvaluation = value;
}
///<summary>
/// This method can be called when the last evaluation has been used
/// and can be returned for reuse in the free pool maintained by the
/// runtime. This is not a necessary step, but is useful for keeping
/// memory usage down. This will recycle the last evaluation and then
/// set the last evaluation to null.
///</summary>
public void recycleLastEvaluation()
{
OgnlRuntime.getEvaluationPool().recycleAll(lastEvaluation);
lastEvaluation = null;
}
public void setLastEvaluation(Evaluation value)
{
lastEvaluation = value;
}
///<summary>
/// Sets the Evaluation that was current when this exception was thrown.
///</summary>
public void setEvaluation(Evaluation value)
{
evaluation = value;
}
