01: package org.apache.lucene.ant;
02:
03: /**
04: * Licensed to the Apache Software Foundation (ASF) under one or more
05: * contributor license agreements. See the NOTICE file distributed with
06: * this work for additional information regarding copyright ownership.
07: * The ASF licenses this file to You under the Apache License, Version 2.0
08: * (the "License"); you may not use this file except in compliance with
09: * the License. You may obtain a copy of the License at
10: *
11: * http://www.apache.org/licenses/LICENSE-2.0
12: *
13: * Unless required by applicable law or agreed to in writing, software
14: * distributed under the License is distributed on an "AS IS" BASIS,
15: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16: * See the License for the specific language governing permissions and
17: * limitations under the License.
18: */
19:
20: import java.io.PrintStream;
21: import java.io.PrintWriter;
22:
23: /**
24: */
25: public class DocumentHandlerException extends Exception {
26: private Throwable cause;
27:
28: /**
29: * Default constructor.
30: */
31: public DocumentHandlerException() {
32: super ();
33: }
34:
35: /**
36: * Constructs with message.
37: */
38: public DocumentHandlerException(String message) {
39: super (message);
40: }
41:
42: /**
43: * Constructs with chained exception.
44: */
45: public DocumentHandlerException(Throwable cause) {
46: super (cause.toString());
47: this .cause = cause;
48: }
49:
50: /**
51: * Retrieves nested exception.
52: */
53: public Throwable getException() {
54: return cause;
55: }
56:
57: public void printStackTrace() {
58: printStackTrace(System.err);
59: }
60:
61: public void printStackTrace(PrintStream ps) {
62: synchronized (ps) {
63: super .printStackTrace(ps);
64: if (cause != null) {
65: ps.println("--- Nested Exception ---");
66: cause.printStackTrace(ps);
67: }
68: }
69: }
70:
71: public void printStackTrace(PrintWriter pw) {
72: synchronized (pw) {
73: super .printStackTrace(pw);
74: if (cause != null) {
75: pw.println("--- Nested Exception ---");
76: cause.printStackTrace(pw);
77: }
78: }
79: }
80: }
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