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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.io.test;
18  
19  import java.io.IOException;
20  import java.io.Reader;
21  
22  import org.apache.commons.io.input.NullReader;
23  import org.apache.commons.io.input.ProxyReader;
24  
25  /**
26   * Helper class for checking behavior of IO classes.
27   */
28  public class ThrowOnCloseReader extends ProxyReader {
29  
30      /**
31       * Default constructor.
32       */
33      public ThrowOnCloseReader() {
34          super(NullReader.INSTANCE);
35      }
36  
37      /**
38       * @param proxy Reader to delegate to.
39       */
40      public ThrowOnCloseReader(final Reader proxy) {
41          super(proxy);
42      }
43  
44      /** @see java.io.Reader#close() */
45      @Override
46      public void close() throws IOException {
47          throw new IOException(getClass().getSimpleName() + ".close() called.");
48      }
49  
50  }