1 package org.apache.maven.plugin.surefire.booterclient.output;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.io.IOException;
23 import java.util.function.Function;
24
25 final class MultipleFailureException
26 extends IOException
27 {
28 void addException( Throwable exception )
29 {
30 addSuppressed( exception );
31 }
32
33 boolean hasNestedExceptions()
34 {
35 return getSuppressed().length != 0;
36 }
37
38 @Override
39 public String getLocalizedMessage()
40 {
41 return toMessage( Throwable::getLocalizedMessage );
42 }
43
44 @Override
45 public String getMessage()
46 {
47 return toMessage( Throwable::getMessage );
48 }
49
50 private String toMessage( Function<Throwable, String> msg )
51 {
52 StringBuilder messages = new StringBuilder();
53 for ( Throwable exception : getSuppressed() )
54 {
55 if ( messages.length() != 0 )
56 {
57 messages.append( '\n' );
58 }
59 String message = msg.apply( exception );
60 messages.append( message == null ? exception.toString() : message );
61 }
62 return messages.toString();
63 }
64 }