private static void processKeyExpression(
Class<?> clz, String keyExpr, CachableValueAccessor accessorCache) throws ServiceException {
if (keyExpr == null || keyExpr.isEmpty())
throw new ServiceException(
ErrorDataFactory.createErrorData(
ErrorConstants.SVC_CACHE_POLICY_INVALID_KEY,
ErrorConstants.ERRORDOMAIN,
new Object[] {keyExpr}));
StringTokenizer st = new StringTokenizer(keyExpr, ".");
StringBuffer currentPath = new StringBuffer();
Class<?> curClz = clz;
CachableValueAccessor curLevelAccessor = accessorCache;
while (st.hasMoreElements()) {
String xmlElement = (String) st.nextElement();
CachableValueAccessor childLevelAccessor = null;
Method m = null;
if (currentPath.length() != 0) currentPath.append(".").append(xmlElement);
else currentPath.append(xmlElement);
if (curLevelAccessor.m_elementAccessors.get(xmlElement) != null) {
// found. No need to create method
childLevelAccessor = curLevelAccessor.m_elementAccessors.get(xmlElement);
m = childLevelAccessor.m_accessor;
} else {
// find the matching java method
m = ReflectionUtils.findMatchingJavaMethod(curClz, xmlElement);
if (m == null) {
// System.out.println("Method not found: class=" + curClz.getName() + ", xmlElement=" +
// xmlElement);
throw new ServiceException(
ErrorDataFactory.createErrorData(
ErrorConstants.SVC_CACHE_POLICY_INVALID_KEY,
ErrorConstants.ERRORDOMAIN,
new Object[] {keyExpr}));
}
childLevelAccessor = new CachableValueAccessor(xmlElement, m, currentPath.toString());
// insert to the current level of the accessorCache
curLevelAccessor.m_elementAccessors.put(xmlElement, childLevelAccessor);
}
// advance the iteration to use the childLevelAccessor
curLevelAccessor = childLevelAccessor;
curClz = m.getReturnType();
}
if (!KeyExpressionValidator.validateReturnType(curClz))
throw new ServiceException(
ErrorDataFactory.createErrorData(
ErrorConstants.SVC_CACHE_POLICY_INVALID_KEY,
ErrorConstants.ERRORDOMAIN,
new Object[] {keyExpr}));
}
