Java XML Attribute Get getAttribute(Node node, String attName, boolean domLevel3)

Description

get Attribute

License

Open Source License

Declaration

public static String getAttribute(Node node, String attName, boolean domLevel3) 

Method Source Code

//package com.java2s;
/*/*from  www .j  ava 2s .co  m*/
 * Copyright (c) 2008-2019, Hazelcast, Inc. All Rights Reserved.
 *
 * 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;

public class Main {
    public static String getAttribute(Node node, String attName, boolean domLevel3) {
        final Node attNode = node.getAttributes().getNamedItem(attName);
        if (attNode == null) {
            return null;
        }
        return getTextContent(attNode, domLevel3);
    }

    public static String getTextContent(final Node node, boolean domLevel3) {
        if (node != null) {
            final String text;
            if (domLevel3) {
                text = node.getTextContent();
            } else {
                text = getTextContentOld(node);
            }
            return text != null ? text.trim() : "";
        }
        return "";
    }

    private static String getTextContentOld(final Node node) {
        final Node child = node.getFirstChild();
        if (child != null) {
            final Node next = child.getNextSibling();
            if (next == null) {
                return hasTextContent(child) ? child.getNodeValue() : "";
            }
            final StringBuilder buf = new StringBuilder();
            appendTextContents(node, buf);
            return buf.toString();
        }
        return "";
    }

    private static boolean hasTextContent(final Node node) {
        final short nodeType = node.getNodeType();
        return nodeType != Node.COMMENT_NODE && nodeType != Node.PROCESSING_INSTRUCTION_NODE;
    }

    private static void appendTextContents(final Node node, final StringBuilder buf) {
        Node child = node.getFirstChild();
        while (child != null) {
            if (hasTextContent(child)) {
                buf.append(child.getNodeValue());
            }
            child = child.getNextSibling();
        }
    }
}

Related

1. getAttribute(Node iNode, String iAttributeName)
2. getAttribute(Node n, String attr)
3. getAttribute(Node n, String attr, String def)
4. getAttribute(Node n, String name)
5. getAttribute(Node node, String att_name)
6. getAttribute(Node node, String attr)
7. getAttribute(Node node, String attr)
8. getAttribute(Node node, String attr)
9. getAttribute(Node node, String attr)