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
18 package org.apache.commons.io.input;
19
20 /**
21 * Package-private factory for {@link UnsupportedOperationException} to provide messages with consistent formatting.
22 *
23 * <p>
24 * TODO Consider making this public and use from LineIterator but this feels like it belongs in LANG rather than IO.
25 * </p>
26 */
27 final class UnsupportedOperationExceptions {
28
29 private static final String MARK_RESET = "mark/reset";
30
31 /**
32 * Constructs a new instance of UnsupportedOperationException for a {@code mark} method.
33 *
34 * @return a new instance of UnsupportedOperationException
35 */
36 static UnsupportedOperationException mark() {
37 // Use the same message as in java.io.InputStream.reset() in OpenJDK 8.0.275-1.
38 return method(MARK_RESET);
39 }
40
41 /**
42 * Constructs a new instance of UnsupportedOperationException for the given unsupported a {@code method} name.
43 *
44 * @param method A method name
45 * @return a new instance of UnsupportedOperationException
46 */
47 static UnsupportedOperationException method(final String method) {
48 return new UnsupportedOperationException(method + " not supported");
49 }
50
51 /**
52 * Constructs a new instance of UnsupportedOperationException for a {@code reset} method.
53 *
54 * @return a new instance of UnsupportedOperationException
55 */
56 static UnsupportedOperationException reset() {
57 // Use the same message as in java.io.InputStream.reset() in OpenJDK 8.0.275-1.
58 return method(MARK_RESET);
59 }
60 }