Coverage Report

Coverage Report - org.apache.maven.usability.diagnostics.DiagnosisUtils

Classes in this File

Line Coverage

Branch Coverage

Complexity

DiagnosisUtils

0 %

0/31

0 %

0/24

3,6

 package org.apache.maven.usability.diagnostics;
 
 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *  http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  */
 
 public final class DiagnosisUtils
 {
     private DiagnosisUtils()
     {
     }
 
     public static boolean containsInCausality( Throwable error, Class test )
     {
         Throwable cause = error;
 
         while ( cause != null )
         {
             if ( test.isInstance( cause ) )
             {
                 return true;
             }
 
             cause = cause.getCause();
         }
 
         return false;
     }
 
     public static Throwable getRootCause( Throwable error )
     {
         Throwable cause = error;
 
         while ( true )
         {
             Throwable nextCause = cause.getCause();
 
             if ( nextCause == null )
             {
                 break;
             }
             else
             {
                 cause = nextCause;
             }
         }
 
         return cause;
     }
 
     public static Throwable getFromCausality( Throwable error, Class targetClass )
     {
         Throwable cause = error;
 
         while ( cause != null )
         {
             if ( targetClass.isInstance( cause ) )
             {
                 return cause;
             }
 
             cause = cause.getCause();
         }
 
         return null;
     }
 
     public static void appendRootCauseIfPresentAndUnique( Throwable error, StringBuffer message,
                                                           boolean includeTypeInfo )
     {
         if ( error == null )
         {
             return;
         }
         
         Throwable root = getRootCause( error );
 
         if ( root != null && !root.equals( error ) )
         {
             String rootMsg = root.getMessage();
 
             if ( rootMsg != null && ( error.getMessage() == null || error.getMessage().indexOf( rootMsg ) < 0 ) )
             {
                 message.append( "\n" ).append( rootMsg );
 
                 if ( includeTypeInfo )
                 {
                     message.append( "\nRoot error type: " ).append( root.getClass().getName() );
                 }
             }
         }
     }
 }

1		package org.apache.maven.usability.diagnostics;
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		public final class DiagnosisUtils
23		{
24		private DiagnosisUtils()
25	0	{
26	0	}
27
28		public static boolean containsInCausality( Throwable error, Class test )
29		{
30	0	Throwable cause = error;
31
32	0	while ( cause != null )
33		{
34	0	if ( test.isInstance( cause ) )
35		{
36	0	return true;
37		}
38
39	0	cause = cause.getCause();
40		}
41
42	0	return false;
43		}
44
45		public static Throwable getRootCause( Throwable error )
46		{
47	0	Throwable cause = error;
48
49		while ( true )
50		{
51	0	Throwable nextCause = cause.getCause();
52
53	0	if ( nextCause == null )
54		{
55	0	break;
56		}
57		else
58		{
59	0	cause = nextCause;
60		}
61	0	}
62
63	0	return cause;
64		}
65
66		public static Throwable getFromCausality( Throwable error, Class targetClass )
67		{
68	0	Throwable cause = error;
69
70	0	while ( cause != null )
71		{
72	0	if ( targetClass.isInstance( cause ) )
73		{
74	0	return cause;
75		}
76
77	0	cause = cause.getCause();
78		}
79
80	0	return null;
81		}
82
83		public static void appendRootCauseIfPresentAndUnique( Throwable error, StringBuffer message,
84		boolean includeTypeInfo )
85		{
86	0	if ( error == null )
87		{
88	0	return;
89		}
90
91	0	Throwable root = getRootCause( error );
92
93	0	if ( root != null && !root.equals( error ) )
94		{
95	0	String rootMsg = root.getMessage();
96
97	0	if ( rootMsg != null && ( error.getMessage() == null \|\| error.getMessage().indexOf( rootMsg ) < 0 ) )
98		{
99	0	message.append( "\n" ).append( rootMsg );
100
101	0	if ( includeTypeInfo )
102		{
103	0	message.append( "\nRoot error type: " ).append( root.getClass().getName() );
104		}
105		}
106		}
107	0	}
108		}