in src/org/apache/xalan/extensions/ExtensionHandlerJavaPackage.java [203:424]
public Object callFunction (String funcName,
Vector args,
Object methodKey,
ExpressionContext exprContext)
throws TransformerException
{
String className;
String methodName;
Class classObj;
Object targetObject;
int lastDot = funcName.lastIndexOf('.');
Object[] methodArgs;
Object[][] convertedArgs;
Class[] paramTypes;
try
{
TransformerImpl trans = (exprContext != null) ?
(TransformerImpl)exprContext.getXPathContext().getOwnerObject() : null;
if (funcName.endsWith(".new")) { // Handle constructor call
methodArgs = new Object[args.size()];
convertedArgs = new Object[1][];
for (int i = 0; i < methodArgs.length; i++)
{
methodArgs[i] = args.get(i);
}
Constructor c = (methodKey != null) ?
(Constructor) getFromCache(methodKey, null, methodArgs) : null;
if (c != null)
{
try
{
paramTypes = c.getParameterTypes();
MethodResolver.convertParams(methodArgs, convertedArgs, paramTypes, exprContext);
return c.newInstance(convertedArgs[0]);
}
catch (InvocationTargetException ite)
{
throw ite;
}
catch(Exception e)
{
// Must not have been the right one
}
}
className = m_className + funcName.substring(0, lastDot);
try
{
classObj = getClassForName(className);
}
catch (ClassNotFoundException e)
{
throw new TransformerException(e);
}
c = MethodResolver.getConstructor(classObj,
methodArgs,
convertedArgs,
exprContext);
if (methodKey != null)
putToCache(methodKey, null, methodArgs, c);
if (trans != null && trans.getDebug()) {
trans.getTraceManager().fireExtensionEvent(new ExtensionEvent(trans, c, convertedArgs[0]));
Object result;
try {
result = c.newInstance(convertedArgs[0]);
} catch (Exception e) {
throw e;
} finally {
trans.getTraceManager().fireExtensionEndEvent(new ExtensionEvent(trans, c, convertedArgs[0]));
}
return result;
} else
return c.newInstance(convertedArgs[0]);
}
else if (-1 != lastDot) { // Handle static method call
methodArgs = new Object[args.size()];
convertedArgs = new Object[1][];
for (int i = 0; i < methodArgs.length; i++)
{
methodArgs[i] = args.get(i);
}
Method m = (methodKey != null) ?
(Method) getFromCache(methodKey, null, methodArgs) : null;
if (m != null && !trans.getDebug())
{
try
{
paramTypes = m.getParameterTypes();
MethodResolver.convertParams(methodArgs, convertedArgs, paramTypes, exprContext);
return m.invoke(null, convertedArgs[0]);
}
catch (InvocationTargetException ite)
{
throw ite;
}
catch(Exception e)
{
// Must not have been the right one
}
}
className = m_className + funcName.substring(0, lastDot);
methodName = funcName.substring(lastDot + 1);
try
{
classObj = getClassForName(className);
}
catch (ClassNotFoundException e)
{
throw new TransformerException(e);
}
m = MethodResolver.getMethod(classObj,
methodName,
methodArgs,
convertedArgs,
exprContext,
MethodResolver.STATIC_ONLY);
if (methodKey != null)
putToCache(methodKey, null, methodArgs, m);
if (trans != null && trans.getDebug()) {
trans.getTraceManager().fireExtensionEvent(m, null, convertedArgs[0]);
Object result;
try {
result = m.invoke(null, convertedArgs[0]);
} catch (Exception e) {
throw e;
} finally {
trans.getTraceManager().fireExtensionEndEvent(m, null, convertedArgs[0]);
}
return result;
}
else
return m.invoke(null, convertedArgs[0]);
}
else { // Handle instance method call
if (args.size() < 1)
{
throw new TransformerException(XSLMessages.createMessage(XSLTErrorResources.ER_INSTANCE_MTHD_CALL_REQUIRES, new Object[]{funcName })); //"Instance method call to method " + funcName
//+ " requires an Object instance as first argument");
}
targetObject = args.get(0);
if (targetObject instanceof XObject) // Next level down for XObjects
targetObject = ((XObject) targetObject).object();
methodArgs = new Object[args.size() - 1];
convertedArgs = new Object[1][];
for (int i = 0; i < methodArgs.length; i++)
{
methodArgs[i] = args.get(i+1);
}
Method m = (methodKey != null) ?
(Method) getFromCache(methodKey, targetObject, methodArgs) : null;
if (m != null)
{
try
{
paramTypes = m.getParameterTypes();
MethodResolver.convertParams(methodArgs, convertedArgs, paramTypes, exprContext);
return m.invoke(targetObject, convertedArgs[0]);
}
catch (InvocationTargetException ite)
{
throw ite;
}
catch(Exception e)
{
// Must not have been the right one
}
}
classObj = targetObject.getClass();
m = MethodResolver.getMethod(classObj,
funcName,
methodArgs,
convertedArgs,
exprContext,
MethodResolver.INSTANCE_ONLY);
if (methodKey != null)
putToCache(methodKey, targetObject, methodArgs, m);
if (trans != null && trans.getDebug()) {
trans.getTraceManager().fireExtensionEvent(m, targetObject, convertedArgs[0]);
Object result;
try {
result = m.invoke(targetObject, convertedArgs[0]);
} catch (Exception e) {
throw e;
} finally {
trans.getTraceManager().fireExtensionEndEvent(m, targetObject, convertedArgs[0]);
}
return result;
} else
return m.invoke(targetObject, convertedArgs[0]);
}
}
catch (InvocationTargetException ite)
{
Throwable resultException = ite;
Throwable targetException = ite.getTargetException();
if (targetException instanceof TransformerException)
throw ((TransformerException)targetException);
else if (targetException != null)
resultException = targetException;
throw new TransformerException(resultException);
}
catch (Exception e)
{
// e.printStackTrace();
throw new TransformerException(e);
}
}