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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.any23.extractor;
19  
20  import java.io.PrintStream;
21  import java.io.PrintWriter;
22  
23  /**
24   * Defines a specific exception raised during the metadata extraction phase.
25   *
26   * @author Michele Mostarda (michele.mostarda@gmail.com)
27   */
28  public class ExtractionException extends Exception {
29  
30      private ExtractionResult extractionResult;
31  
32      public ExtractionException(String message) {
33          super(message);
34      }
35  
36      public ExtractionException(String message, Throwable cause) {
37          super(message, cause);
38      }
39  
40      public ExtractionException(String message, Throwable cause, ExtractionResult er) {
41          super(message, cause);
42          extractionResult = er;
43      }
44  
45      @Override
46      public void printStackTrace(PrintStream ps) {
47          printExceptionResult( new PrintWriter(ps) );
48          super.printStackTrace(ps);
49      }
50  
51      @Override
52      public void printStackTrace(PrintWriter pw) {
53          printExceptionResult(pw);
54          super.printStackTrace(pw);
55      }
56  
57      private void printExceptionResult(PrintWriter ps) {
58          if(extractionResult == null) {
59              return;
60          }
61          ps.println();
62          ps.println("------------ BEGIN Exception context ------------");
63          ps.print( extractionResult.toString() );
64          ps.println("------------ END   Exception context ------------");
65          ps.println();
66          ps.flush();
67      }
68  }