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1   package org.apache.maven.model.io;
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  
24  /**
25   * Signals a failure to parse the POM due to invalid syntax (e.g. non-wellformed XML or unknown elements).
26   * 
27   * @author Benjamin Bentmann
28   */
29  public class ModelParseException
30      extends IOException
31  {
32  
33      /**
34       * The one-based index of the line containing the error.
35       */
36      private final int lineNumber;
37  
38      /**
39       * The one-based index of the column containing the error.
40       */
41      private final int columnNumber;
42  
43      /**
44       * Creates a new parser exception with the specified details.
45       * 
46       * @param message The error message, may be {@code null}.
47       * @param lineNumber The one-based index of the line containing the error or {@code -1} if unknown.
48       * @param columnNumber The one-based index of the column containing the error or {@code -1} if unknown.
49       */
50      public ModelParseException( String message, int lineNumber, int columnNumber )
51      {
52          super( message );
53          this.lineNumber = lineNumber;
54          this.columnNumber = columnNumber;
55      }
56  
57      /**
58       * Creates a new parser exception with the specified details.
59       * 
60       * @param message The error message, may be {@code null}.
61       * @param lineNumber The one-based index of the line containing the error or {@code -1} if unknown.
62       * @param columnNumber The one-based index of the column containing the error or {@code -1} if unknown.
63       * @param cause The nested cause of this error, may be {@code null}.
64       */
65      public ModelParseException( String message, int lineNumber, int columnNumber, Throwable cause )
66      {
67          super( message );
68          initCause( cause );
69          this.lineNumber = lineNumber;
70          this.columnNumber = columnNumber;
71      }
72  
73      /**
74       * Gets the one-based index of the line containing the error.
75       * 
76       * @return The one-based index of the line containing the error or a non-positive value if unknown.
77       */
78      public int getLineNumber()
79      {
80          return lineNumber;
81      }
82  
83      /**
84       * Gets the one-based index of the column containing the error.
85       * 
86       * @return The one-based index of the column containing the error or non-positive value if unknown.
87       */
88      public int getColumnNumber()
89      {
90          return columnNumber;
91      }
92  
93  }