protected void initializeQueryService() {
try {
String usingPool = TestConfig.tab().stringAt(CQUtilPrms.QueryServiceUsingPool, "false");
boolean queryServiceUsingPool = Boolean.valueOf(usingPool).booleanValue();
if (queryServiceUsingPool) {
Pool pool = PoolHelper.createPool(CQUtilPrms.getQueryServicePoolName());
qService = pool.getQueryService();
Log.getLogWriter()
.info("Initializing QueryService using Pool. PoolName: " + pool.getName());
} else {
qService = CacheHelper.getCache().getQueryService();
Log.getLogWriter().info("Initializing QueryService using Cache.");
}
} catch (Exception e) {
throw new TestException(TestHelper.getStackTrace(e));
}
}
public static Object element(Object arg, ExecutionContext context)
throws FunctionDomainException, TypeMismatchException {
if (arg == null || arg == QueryService.UNDEFINED) return QueryService.UNDEFINED;
if (arg instanceof Collection) {
Collection c = (Collection) arg;
// for remote distinct queries, the result of sub query could contain a
// mix of String and PdxString which could be duplicates, so convert all
// PdxStrings to String
if (context.isDistinct() && ((DefaultQuery) context.getQuery()).isRemoteQuery()) {
Set tempResults = new HashSet();
for (Object o : c) {
if (o instanceof PdxString) {
o = ((PdxString) o).toString();
}
tempResults.add(o);
}
c.clear();
c.addAll(tempResults);
tempResults = null;
}
checkSingleton(c.size());
return c.iterator().next();
}
// not a Collection, must be an array
Class clazz = arg.getClass();
if (!clazz.isArray())
throw new TypeMismatchException(
LocalizedStrings.Functions_THE_ELEMENT_FUNCTION_CANNOT_BE_APPLIED_TO_AN_OBJECT_OF_TYPE_0
.toLocalizedString(clazz.getName()));
// handle arrays
if (arg instanceof Object[]) {
Object[] a = (Object[]) arg;
if (((DefaultQuery) context.getQuery()).isRemoteQuery() && context.isDistinct()) {
for (int i = 0; i < a.length; i++) {
if (a[i] instanceof PdxString) {
a[i] = ((PdxString) a[i]).toString();
}
}
}
checkSingleton(a.length);
return a[0];
}
if (arg instanceof int[]) {
int[] a = (int[]) arg;
checkSingleton(a.length);
return Integer.valueOf(a[0]);
}
if (arg instanceof long[]) {
long[] a = (long[]) arg;
checkSingleton(a.length);
return Long.valueOf(a[0]);
}
if (arg instanceof boolean[]) {
boolean[] a = (boolean[]) arg;
checkSingleton(a.length);
return Boolean.valueOf(a[0]);
}
if (arg instanceof byte[]) {
byte[] a = (byte[]) arg;
checkSingleton(a.length);
return Byte.valueOf(a[0]);
}
if (arg instanceof char[]) {
char[] a = (char[]) arg;
checkSingleton(a.length);
return new Character(a[0]);
}
if (arg instanceof double[]) {
double[] a = (double[]) arg;
checkSingleton(a.length);
return Double.valueOf(a[0]);
}
if (arg instanceof float[]) {
float[] a = (float[]) arg;
checkSingleton(a.length);
return new Float(a[0]);
}
if (arg instanceof short[]) {
short[] a = (short[]) arg;
checkSingleton(a.length);
return new Short(a[0]);
}
// did I miss something?
throw new TypeMismatchException(
LocalizedStrings.Functions_THE_ELEMENT_FUNCTION_CANNOT_BE_APPLIED_TO_AN_OBJECT_OF_TYPE_0
.toLocalizedString(clazz.getName()));
}