Checks if the Element contains any of the attributes contained in the list of labels, or throws an XMLParserException if it does not. - Java XML

Java examples for XML:XML Attribute

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Description

Checks if the Element contains any of the attributes contained in the list of labels, or throws an XMLParserException if it does not.

Demo Code


import java.util.ArrayList;
import java.util.List;
import org.w3c.dom.Comment;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main{
    /**/*from  www  . j  av  a2  s  .c o  m*/
     * Checks if the Element contains any of the attributes contained in the
     * list of labels, or throws an {@link XMLParserException} if it does not.
     *
     * @param element
     *            The Element object.
     * @param labels
     *            The list of string labels to test.
     * @throws XMLParserException
     *             If the Element object does not contain at least one of the
     *             elements tested in the list of labels, an
     *             {@link XMLParserException} will be thrown.
     */
    public static void checkedAnyAttributes(Element element, String[] labels)
            throws XMLParserException {
        for (String label : labels)
            if (element.hasAttribute(label))
                return;
        throw new XMLParserException(String.format(
                "Tag %s missing at least one of any attribute: %s.",
                element.getNodeName(), listToString(labels)));
    }
    /**
     * Converts the list of labels to a string.
     *
     * @param labels
     *            The list of labels.
     * @return The string version of the list.
     */
    private static String listToString(String[] labels) {
        StringBuilder s = new StringBuilder();
        for (String j : labels)
            s.append(j).append(", ");
        String s1 = s.toString();
        return s1.substring(0, s1.length() - 2);
    }
    /**
     * Converts the list of labels to a string.
     *
     * @param labels
     *            The list of labels.
     * @return The string version of the list.
     */
    private static String listToString(List<String> labels) {
        return listToString(labels.toArray(new String[0]));
    }
}

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