1 /***
2 * Copyright 2003-2010 Terracotta, Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package net.sf.ehcache.pool.sizeof.filter;
18
19 import net.sf.ehcache.pool.sizeof.annotations.IgnoreSizeOf;
20 import java.lang.reflect.Field;
21 import java.util.Collection;
22 import java.util.Iterator;
23
24 /***
25 * A Filter that will filter fields, based on the {@link IgnoreSizeOf} annotation
26 *
27 * @author Chris Dennis
28 */
29 public final class AnnotationSizeOfFilter implements SizeOfFilter {
30
31 /***
32 * {@inheritDoc}
33 */
34 public Collection<Field> filterFields(Class<?> klazz, Collection<Field> fields) {
35 for (Iterator<Field> it = fields.iterator(); it.hasNext();) {
36 if (it.next().isAnnotationPresent(IgnoreSizeOf.class)) {
37 it.remove();
38 }
39 }
40 return fields;
41 }
42
43 /***
44 * {@inheritDoc}
45 */
46 public boolean filterClass(Class<?> klazz) {
47 boolean classAnnotated = klazz.isAnnotationPresent(IgnoreSizeOf.class);
48 Package pack = klazz.getPackage();
49 boolean packageAnnotated = pack == null ? false : pack.isAnnotationPresent(IgnoreSizeOf.class);
50 return !classAnnotated && !packageAnnotated;
51 }
52 }