Java XML Node Namespace getNodeString(Node node, NamespaceContext context)

Description

Builds an XPath string referencing the given node relative to it's parent.

License

Open Source License

Parameter

Parameter	Description
node	a parameter
context	namespace context used to determine correct namespace prefixes, see SignavioNamespaceContext

Return

a relative XPath string or null (if no node given)

Declaration

private static String getNodeString(Node node, NamespaceContext context) 

Method Source Code

//package com.java2s;
/**//from w w  w  .j  a va 2  s.c  o  m
 * The MIT License (MIT)
 * Copyright (c) 2013 Signavio, OMG BPMN Model Interchange Working Group
 *
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * 
 */

import javax.xml.namespace.NamespaceContext;

import org.w3c.dom.Attr;

import org.w3c.dom.Node;

import org.w3c.dom.Text;

public class Main {
    /**
     * Builds an XPath string referencing the given node relative to it's parent.
     * 
     * @param node
     * @param context namespace context used to determine correct namespace prefixes, see
     *            {@link SignavioNamespaceContext}
     * @return a relative XPath string or null (if no node given)
     */
    private static String getNodeString(Node node, NamespaceContext context) {
        if (node == null) {
            return null;
        }

        // get qualified name
        String nodeName = node.getLocalName();
        if (nodeName == null)
            nodeName = node.getNodeName();

        if (node.getNamespaceURI() != null) {
            String prefix = context.getPrefix(node.getNamespaceURI());
            nodeName = prefix + ":" + node.getLocalName();
        }

        if (node instanceof Attr) {
            return "@" + nodeName;
        } else if (node instanceof Text) {
            nodeName = "text()";
        }

        // determine position
        Node current = node;
        while (current.getPreviousSibling() != null) {
            current = current.getPreviousSibling();
        }
        int position = 1;

        while (current != node) {
            if (current.getNodeName().equals(node.getNodeName()))
                position++;
            current = current.getNextSibling();
        }

        return nodeName + "[" + position + "]";
    }
}

Related

1. getNamespaceUri(Node node)
2. getNamespaceURI(Node node)
3. getNameSpaceUri(Node node, String content, String namespaceURI)
4. getNamespaceURI(Node node, String searchPrefix)
5. getNodeName(Node node, NamespaceContext namespaceContext)
6. hasDITANamespace(Node node)
7. hasNamespace(Node node, String prefix, String namespace)
8. hasNamespaceURI(@Nullable final Node aNode, @Nullable final String sNamespaceURI)
9. hasNamespaceURI(@Nullable final Node aNode, @Nullable final String sNamespaceURI)