Find Usages Diff Raw Download HTML Widget
Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions 
1
  /*
2
   * Copyright 2002-2007 the original author or authors.
3
   *
4
   * Licensed under the Apache License, Version 2.0 (the "License");
5
   * you may not use this file except in compliance with the License.
6
   * You may obtain a copy of the License at
7
   *
8
   *      http://www.apache.org/licenses/LICENSE-2.0
9
   *
10
  * Unless required by applicable law or agreed to in writing, software
11
  * distributed under the License is distributed on an "AS IS" BASIS,
12
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
  * See the License for the specific language governing permissions and
14
  * limitations under the License.
15
  */
16
 
17
 package org.springframework.core;

Handy class for wrapping runtime Exceptions with a root cause.

This class is abstract to force the programmer to extend the class. getMessage will include nested exception information; printStackTrace and other like methods will delegate to the wrapped exception, if any.

The similarity between this class and the NestedCheckedException class is unavoidable, as Java forces these two classes to have different superclasses (ah, the inflexibility of concrete inheritance!).

Author(s):
Rod Johnson
Juergen Hoeller
See also:
getMessage()
java.lang.Throwable.printStackTrace()
NestedCheckedException
36
 
37
 public abstract class NestedRuntimeException extends RuntimeException {
Use serialVersionUID from Spring 1.2 for interoperability
39
 
40
 	private static final long serialVersionUID = 5439915454935047936L;
Construct a NestedRuntimeException with the specified detail message.

Parameters:
msg the detail message
46
 
47
 	public NestedRuntimeException(String msg) {
48
 		super(msg);
49
 	}
Construct a NestedRuntimeException with the specified detail message and nested exception.

Parameters:
msg the detail message
cause the nested exception
56
 
57
 	public NestedRuntimeException(String msg, Throwable cause) {
58
 		super(msg, cause);
59
 	}
Return the detail message, including the message from the nested exception if there is one. 
65
 
66
 	public String getMessage() {
67
 		return NestedExceptionUtils.buildMessage(super.getMessage(), getCause());
68
 	}
Retrieve the innermost cause of this exception, if any.

Returns:
the innermost exception, or null if none
Since:
2.0
75
 
76
 	public Throwable getRootCause() {
77
 		Throwable rootCause = null;
78
 		Throwable cause = getCause();
79
 		while (cause != null && cause != rootCause) {
80
 			rootCause = cause;
81
 			cause = cause.getCause();
82
 		}
83
 		return rootCause;
84
 	}
Retrieve the most specific cause of this exception, that is, either the innermost cause (root cause) or this exception itself.

Differs from getRootCause() in that it falls back to the present exception if there is no root cause.

Returns:
the most specific cause (never null)
Since:
2.0.3
93
 
95
 		Throwable rootCause = getRootCause();
96
 		return (rootCause != null ? rootCause : this);
97
 	}
Check whether this exception contains an exception of the given type: either it is of the given class itself or it contains a nested cause of the given type.

Parameters:
exType the exception type to look for
Returns:
whether there is a nested exception of the specified type
106
	public boolean contains(Class exType) {
107
		if (exType == null) {
108
			return false;
109
		}
110
		if (exType.isInstance(this)) {
111
			return true;
112
		}
113
		Throwable cause = getCause();
114
		if (cause == this) {
115
			return false;
116
		}
117
		if (cause instanceof NestedRuntimeException) {
118
			return ((NestedRuntimeException) cause).contains(exType);
119
		}
120
		else {
121
			while (cause != null) {
122
				if (exType.isInstance(cause)) {
123
					return true;
124
				}
125
				if (cause.getCause() == cause) {
126
					break;
127
				}
128
				cause = cause.getCause();
129
			}
130
			return false;
131
		}
132
	}
New to GrepCode? Check out our FAQ X