01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: *
17: */
18: package filter.hmimpl;
19:
20: import java.util.ArrayList;
21: import java.util.List;
22: import filter.IFilter;
23:
24: public class HMFilter implements IFilter {
25:
26: public String[] filter(String[] values, String prefix) {
27: if (values == null) {
28: return null;
29: }
30: if (prefix == null) {
31: return values;
32: }
33: List result = new ArrayList();
34: for (int i = 0; i < values.length; i++) {
35: String string = values[i];
36: if (string != null && string.startsWith(prefix)) {
37: result.add(string);
38: }
39: }
40: return (String[]) result.toArray(new String[result.size()]);
41: }
42: }
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