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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.microdata;
    19
    20  import java.util.Locale;
    21
    22  import org.apache.any23.extractor.html.DomUtils;
    23  import org.w3c.dom.Node;
    24
    25  /**
    26   * Defines an exception occurring while parsing <i>Microdata</i>.
    27   *
    28   * @see MicrodataParser
    29   *
    30   * @author Michele Mostarda (mostarda@fbk.eu)
    31   */
    32  public class MicrodataParserException extends Exception {
    33
    34      private String errorPath;
    35      private int[] errorLocation;
    36
    37      public MicrodataParserException(String message, Node errorNode) {
    38          super(message);
    39          setErrorNode(errorNode);
    40      }
    41
    42      public MicrodataParserException(String message, Throwable cause, Node errorNode) {
    43          super(message, cause);
    44          setErrorNode(errorNode);
    45      }
    46
    47      public String getErrorPath() {
    48          return errorPath;
    49      }
    50
    51      public int getErrorLocationBeginRow() {
    52          return errorLocation == null ? -1 : errorLocation[0];
    53      }
    54
    55      public int getErrorLocationBeginCol() {
    56          return errorLocation == null ? -1 : errorLocation[1];
    57      }
    58
    59      public int getErrorLocationEndRow() {
    60          return errorLocation == null ? -1 : errorLocation[2];
    61      }
    62
    63      public int getErrorLocationEndCol() {
    64          return errorLocation == null ? -1 : errorLocation[3];
    65      }
    66
    67      public String toJSON() {
    68          return String.format(Locale.ROOT,
    69                  "{ \"message\" : \"%s\", " + "\"path\" : \"%s\", " + "\"begin_row\" : %d, \"begin_col\" : %d, "
    70                          + "\"end_row\" : %d, \"end_col\" : %d }",
    71                  getMessage().replaceAll("\"", ""), getErrorPath(), getErrorLocationBeginRow(),
    72                  getErrorLocationBeginCol(), getErrorLocationEndRow(), getErrorLocationEndCol());
    73      }
    74
    75      @Override
    76      public String toString() {
    77          return toJSON();
    78      }
    79
    80      protected void setErrorNode(Node n) {
    81          if (n == null) {
    82              errorPath = null;
    83              errorLocation = null;
    84              return;
    85          }
    86
    87          errorPath = DomUtils.getXPathForNode(n);
    88          errorLocation = DomUtils.getNodeLocation(n);
    89      }
    90
    91  }