private int getCount(String modelName, com.jcommerce.core.service.Criteria criteria) {
Manager manager = getManager(modelName);
String methodName = config.getCountMethod(modelName);
try {
Method method = manager.getClass().getMethod(methodName, new Class[] {Criteria.class});
if (method == null) {
throw new RuntimeException("Method with paging not found: " + methodName);
}
Integer count = (Integer) method.invoke(manager, criteria);
return count.intValue();
} catch (SecurityException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
return 0;
}
public PagingLoadResult<BeanObject> getPagingList(
String modelName, Criteria criteria, List<String> wantedFields, PagingLoadConfig pgc) {
List<BeanObject> list = new ArrayList<BeanObject>();
Manager manager = getManager(modelName);
String methodName = config.getListMethod(modelName);
try {
Method method =
manager
.getClass()
.getMethod(methodName, new Class[] {int.class, int.class, Criteria.class});
if (method == null) {
throw new RuntimeException("Method with paging not found: " + methodName);
}
List ret = (List) method.invoke(manager, pgc.getOffset(), pgc.getLimit(), criteria);
for (Iterator it = ret.iterator(); it.hasNext(); ) {
ModelObject model = (ModelObject) it.next();
try {
Map<String, Object> props = getProperties(model, wantedFields);
list.add(new BeanObject(model.getClass().getSimpleName(), props));
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
}
} catch (SecurityException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
if (pgc.getSortInfo().getSortField() != null) {
final String sortField = pgc.getSortInfo().getSortField();
if (sortField != null) {
Collections.sort(
list,
pgc.getSortInfo()
.getSortDir()
.comparator(
new Comparator() {
public int compare(Object o1, Object o2) {
Object s1 = ((BeanObject) o1).get(sortField);
Object s2 = ((BeanObject) o2).get(sortField);
if (s1 instanceof Comparable && s2 instanceof Comparable) {
return ((Comparable) s1).compareTo((Comparable) s2);
}
if (s1 != null && s2 != null) {
return s1.toString().compareTo(s2.toString());
} else if (s2 != null) {
return -1;
}
return 0;
}
}));
}
}
return new BasePagingLoadResult(list, pgc.getOffset(), getCount(modelName, criteria));
}