Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
BasicFilterFactory |
|
| 3.5;3.5 |
1 | /* | |
2 | * Licensed to the Apache Software Foundation (ASF) under one or more | |
3 | * contributor license agreements. See the NOTICE file distributed with | |
4 | * this work for additional information regarding copyright ownership. | |
5 | * The ASF licenses this file to You under the Apache License, Version 2.0 | |
6 | * (the "License"); you may not use this file except in compliance with | |
7 | * the License. You may obtain a copy of the License at | |
8 | * | |
9 | * 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 | package org.apache.commons.flatfile.util; | |
18 | ||
19 | import java.io.InputStream; | |
20 | import java.lang.reflect.Constructor; | |
21 | ||
22 | import org.apache.commons.lang3.Validate; | |
23 | import org.apache.commons.lang3.reflect.ConstructorUtils; | |
24 | ||
25 | /** | |
26 | * Basic FilterFactory that creates an instance of a given InputStream subclass with a (InputStream) constructor. | |
27 | * @version $Revision: 1301244 $ $Date: 2012-03-15 17:16:23 -0500 (Thu, 15 Mar 2012) $ | |
28 | */ | |
29 | public class BasicFilterFactory extends FilterFactory { | |
30 | private static final long serialVersionUID = 9080292216759574895L; | |
31 | ||
32 | private final Constructor<? extends InputStream> constructor; | |
33 | ||
34 | /** | |
35 | * Create a new BasicFilterFactory instance. | |
36 | * @param type (Filter)InputStream type to instantiate. | |
37 | */ | |
38 | 0 | public BasicFilterFactory(Class<? extends InputStream> type) { |
39 | 0 | Validate.isAssignableFrom(InputStream.class, type); |
40 | 0 | this.constructor = |
41 | 0 | Validate.notNull(ConstructorUtils.getAccessibleConstructor(type, |
42 | 0 | InputStream.class), String.format( |
43 | 0 | "Constructor %s(%s) not found", type.getName(), |
44 | 0 | InputStream.class.getName())); |
45 | 0 | } |
46 | ||
47 | /** | |
48 | * {@inheritDoc} | |
49 | */ | |
50 | protected InputStream iGetFilter(InputStream markIsSupported) { | |
51 | try { | |
52 | 0 | return constructor.newInstance(markIsSupported); |
53 | 0 | } catch (RuntimeException e) { |
54 | 0 | throw e; |
55 | 0 | } catch (Exception e) { |
56 | 0 | throw new RuntimeException(e); |
57 | } | |
58 | } | |
59 | } |