public IVelPropertySet GetPropertySet(object obj, string identifier, object arg, Info i)
{
Type type = obj.GetType();
IVelMethod velMethod = null;
IVelPropertySet result;
try
{
object[] args = new object[]
{
arg
};
try
{
velMethod = this.GetMethod(obj, "set" + identifier, args, i);
if (velMethod == null)
{
throw new MethodAccessException();
}
}
catch (MethodAccessException)
{
StringBuilder stringBuilder = new StringBuilder("set");
stringBuilder.Append(identifier);
if (char.IsLower(stringBuilder[3]))
{
stringBuilder[3] = char.ToUpper(stringBuilder[3]);
}
else
{
stringBuilder[3] = char.ToLower(stringBuilder[3]);
}
velMethod = this.GetMethod(obj, stringBuilder.ToString(), args, i);
if (velMethod == null)
{
throw;
}
}
}
catch (MethodAccessException)
{
if (typeof(IDictionary).IsAssignableFrom(type))
{
object[] args = new object[]
{
new object(),
new object()
};
velMethod = this.GetMethod(obj, "Add", args, i);
if (velMethod != null)
{
result = new UberspectImpl.VelSetterImpl(velMethod, identifier);
return(result);
}
}
}
result = ((velMethod != null) ? new UberspectImpl.VelSetterImpl(velMethod) : null);
return(result);
}
public VelSetterImpl(IVelMethod velMethod, string key)
{
this.velMethod = velMethod;
putKey = key;
}
public VelSetterImpl(IVelMethod velMethod)
{
this.velMethod = velMethod;
}
/// <summary>
/// Property setter.
/// </summary>
public IVelPropertySet GetPropertySet(Object obj, String identifier, Object arg, Info i)
{
Type type = obj.GetType();
IVelMethod method = null;
try
{
/*
* first, we introspect for the set<identifier> setter method
*/
Object[] parameters = new Object[] { arg };
try
{
method = GetMethod(obj, string.Format("set{0}", identifier), parameters, i);
if (method == null)
{
throw new MethodAccessException();
}
}
catch (MethodAccessException)
{
StringBuilder sb = new StringBuilder("set");
sb.Append(identifier);
if (Char.IsLower(sb[3]))
{
sb[3] = Char.ToUpper(sb[3]);
}
else
{
sb[3] = Char.ToLower(sb[3]);
}
method = GetMethod(obj, sb.ToString(), parameters, i);
if (method == null)
{
throw;
}
}
}
catch (MethodAccessException)
{
// right now, we only support the IDictionary interface
if (typeof(IDictionary).IsAssignableFrom(type))
{
Object[] parameters = new Object[] { new Object(), new Object() };
method = GetMethod(obj, "Add", parameters, i);
if (method != null)
{
return(new VelSetterImpl(method, identifier));
}
}
}
return((method != null) ? new VelSetterImpl(method) : null);
}
public VelSetterImpl(IVelMethod velmethod, string key)
{
vm = velmethod;
putKey = key;
}
public VelSetterImpl(IVelMethod velmethod)
{
vm = velmethod;
}
public VelSetterImpl(IVelMethod velmethod, string key)
{
this.vm = velmethod;
this.putKey = key;
}
/// <summary> invokes the method. Returns null if a problem, the
/// parameters return if the method returns something, or
/// an empty string "" if the method returns void
/// </summary>
/// <param name="instance">
/// </param>
/// <param name="context">
/// </param>
/// <returns> Result or null.
/// </returns>
/// <throws> MethodInvocationException </throws>
public override object Execute(object o, IInternalContextAdapter context)
{
/*
* new strategy (strategery!) for introspection. Since we want
* to be thread- as well as context-safe, we *must* do it now,
* at execution time. There can be no in-node caching,
* but if we are careful, we can do it in the context.
*/
IVelMethod method = null;
object[] params_Renamed = new object[paramCount];
try
{
/*
* sadly, we do need recalc the values of the args, as this can
* change from visit to visit
*/
System.Type[] paramClasses = paramCount > 0 ? new System.Type[paramCount] : new System.Collections.Generic.List <Type>().ToArray();
for (int j = 0; j < paramCount; j++)
{
params_Renamed[j] = GetChild(j + 1).Value(context);
if (params_Renamed[j] != null)
{
paramClasses[j] = params_Renamed[j].GetType();
}
}
/*
* check the cache
*/
MethodCacheKey mck = new MethodCacheKey(methodName, paramClasses);
IntrospectionCacheData icd = context.ICacheGet(mck);
/*
* like ASTIdentifier, if we have cache information, and the
* Class of Object instance is the same as that in the cache, we are
* safe.
*/
if (icd != null && (o != null && icd.ContextData == o.GetType()))
{
/*
* Get the method from the cache
*/
method = (IVelMethod)icd.Thingy;
}
else
{
/*
* otherwise, do the introspection, and then
* cache it
*/
method = rsvc.Uberspect.GetMethod(o, methodName, params_Renamed, new Info(TemplateName, Line, Column));
if ((method != null) && (o != null))
{
icd = new IntrospectionCacheData();
icd.ContextData = o.GetType();
icd.Thingy = method;
context.ICachePut(mck, icd);
}
}
/*
* if we still haven't gotten the method, either we are calling
* a method that doesn't exist (which is fine...) or I screwed
* it up.
*/
if (method == null)
{
if (strictRef)
{
// Create a parameter list for the exception Error message
System.Text.StringBuilder plist = new System.Text.StringBuilder();
for (int i = 0; i < params_Renamed.Length; i++)
{
System.Type param = paramClasses[i];
plist.Append(param == null ? "null" : param.FullName);
if (i < params_Renamed.Length - 1)
{
plist.Append(", ");
}
}
throw new MethodInvocationException("Object '" + o.GetType().FullName + "' does not contain method " + methodName + "(" + plist + ")", null, methodName, uberInfo.TemplateName, uberInfo.Line, uberInfo.Column);
}
else
{
return(null);
}
}
}
catch (MethodInvocationException mie)
{
/*
* this can come from the doIntrospection(), as the arg values
* are evaluated to find the right method signature. We just
* want to propogate it here, not do anything fancy
*/
throw mie;
}
/**
* pass through application level runtime exceptions
*/
catch (System.SystemException e)
{
throw e;
}
catch (System.Exception e)
{
/*
* can come from the doIntropection() also, from Introspector
*/
string msg = "ASTMethod.Execute() : exception from introspection";
log.Error(msg, e);
throw new VelocityException(msg, e);
}
try
{
/*
* Get the returned object. It may be null, and that is
* valid for something declared with a void return type.
* Since the caller is expecting something to be returned,
* as long as things are peachy, we can return an empty
* String so ASTReference() correctly figures out that
* all is well.
*/
object obj = method.Invoke(o, params_Renamed);
if (obj == null)
{
if (method.ReturnType == System.Type.GetType("System.Void"))
{
return("");
}
}
return(obj);
}
catch (System.Reflection.TargetInvocationException ite)
{
return(HandleInvocationException(o, context, ite.GetBaseException()));
}
/** Can also be thrown by method invocation **/
catch (System.ArgumentException t)
{
return(HandleInvocationException(o, context, t));
}
/**
* pass through application level runtime exceptions
*/
catch (System.SystemException e)
{
throw e;
}
catch (System.Exception e)
{
string msg = "ASTMethod.Execute() : exception invoking method '" + methodName + "' in " + o.GetType();
log.Error(msg, e);
throw new VelocityException(msg, e);
}
}
public VelSetterImpl(IVelMethod velMethod, string key)
{
this.velMethod = velMethod;
putKey = key;
}
public VelSetterImpl(IVelMethod velMethod)
{
this.velMethod = velMethod;
}
/// <summary> {@inheritDoc}
///
/// </summary>
/// <seealso cref="org.apache.velocity.util.introspection.Uberspect.getMethod(java.lang.Object, java.lang.String,">
/// java.lang.Object[], org.apache.velocity.util.introspection.Info)
/// </seealso>
//@Override
public override IVelMethod GetMethod(object obj, string methodName, object[] args, Info i)
{
IVelMethod method = leftUberspect.GetMethod(obj, methodName, args, i);
return(method != null ? method : rightUberspect.GetMethod(obj, methodName, args, i));
}
