src/plugin/parse-tika/src/java/org/apache/nutch/parse/tika/DOMContentUtils.java [284:315]:
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  public String getBase(Node node) {

    NodeWalker walker = new NodeWalker(node);

    while (walker.hasNext()) {

      Node currentNode = walker.nextNode();
      String nodeName = currentNode.getNodeName();
      short nodeType = currentNode.getNodeType();

      // is this node a BASE tag?
      if (nodeType == Node.ELEMENT_NODE) {

        if ("body".equalsIgnoreCase(nodeName)) { // stop after HEAD
          return null;
        }

        if ("base".equalsIgnoreCase(nodeName)) {
          NamedNodeMap attrs = currentNode.getAttributes();
          for (int i = 0; i < attrs.getLength(); i++) {
            Node attr = attrs.item(i);
            if ("href".equalsIgnoreCase(attr.getNodeName())) {
              return attr.getNodeValue();
            }
          }
        }
      }
    }

    // no.
    return null;
  }
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src/plugin/parse-html/src/java/org/apache/nutch/parse/html/DOMContentUtils.java [286:317]:
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  public String getBase(Node node) {

    NodeWalker walker = new NodeWalker(node);

    while (walker.hasNext()) {

      Node currentNode = walker.nextNode();
      String nodeName = currentNode.getNodeName();
      short nodeType = currentNode.getNodeType();

      // is this node a BASE tag?
      if (nodeType == Node.ELEMENT_NODE) {

        if ("body".equalsIgnoreCase(nodeName)) { // stop after HEAD
          return null;
        }

        if ("base".equalsIgnoreCase(nodeName)) {
          NamedNodeMap attrs = currentNode.getAttributes();
          for (int i = 0; i < attrs.getLength(); i++) {
            Node attr = attrs.item(i);
            if ("href".equalsIgnoreCase(attr.getNodeName())) {
              return attr.getNodeValue();
            }
          }
        }
      }
    }

    // no.
    return null;
  }
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