Given an org.w3c.dom.Node which is a XML element containing text, returns the text. - Java XML

Java examples for XML:DOM Node

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Description

Given an org.w3c.dom.Node which is a XML element containing text, returns the text.

Demo Code

/*/*from w  ww.  j  a  va  2  s.  c  o m*/
 * Copyright 2013 Splunk, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"): you may
 * not use this file except in compliance with the License. You may obtain
 * a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
import org.w3c.dom.Node;
import org.w3c.dom.Text;

public class Main{
    /**
     * Given an {@code org.w3c.dom.Node} which is an element containing text, returns the text. If there
     * is anything but text inside the element, throws a {@code MalformedDataException} with {@code errorMessage} as the reason.
     *
     * @param node The {@code Node} object to pull text out of.
     * @param errorMessage The reason provided if there is something besides text in the element.
     * @return A String of the text in the element.
     * @throws MalformedDataException When there is anything besides text in the element.
     */
    static String textInNode(Node node, String errorMessage)
            throws MalformedDataException {
        Node child = node.getFirstChild();
        if (child.getNodeType() != child.TEXT_NODE) {
            throw new MalformedDataException(errorMessage);
        } else {
            return ((Text) child).getData();
        }
    }
}

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