Java XML Node Namespace getNamespaceMappings(Node node)

Description

Get all the name spaces visible from this node.

License

Open Source License

Parameter

Parameter	Description
node	a parameter

Declaration

public static Map<String, String> getNamespaceMappings(Node node) 

Method Source Code

//package com.java2s;
/******************************************************************************
 * Copyright (c) 2008-2013, Linagora/*from   ww  w  . j ava2 s .  c  om*/
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *       Linagora - initial API and implementation
 *******************************************************************************/

import java.util.HashMap;
import java.util.Map;

import org.w3c.dom.Node;

public class Main {
    /**
     * Get all the name spaces visible from this node.
     * <p>
     * This method was added because the DOM implementation of the Eclipse
     * XML editor does not handle this correctly.
     * </p>
     * @param node
     * @return
     */
    public static Map<String, String> getNamespaceMappings(Node node) {

        Map<String, String> namespaces = new HashMap<String, String>();
        boolean firstLoop = true;
        Node n = node;
        while (n != null) {

            // Get default name space
            if (firstLoop && n.getNamespaceURI() != null) {
                namespaces.put("", n.getNamespaceURI());
                firstLoop = false;
            }

            // Get other name spaces
            if (n.getAttributes() != null) {
                for (int i = 0; i < n.getAttributes().getLength(); i++) {
                    String attrName = n.getAttributes().item(i).getNodeName();

                    if (attrName.startsWith("xmlns")) { //$NON-NLS-1$
                        String prefix = "";
                        int index = attrName.indexOf(':');
                        if (index != -1 && ++index < attrName.length())
                            prefix = attrName.substring(index);

                        String uri = n.getAttributes().item(i).getNodeValue();
                        namespaces.put(prefix, uri);
                    }
                }
            }

            // Go on with the parent
            n = n.getParentNode();
        }

        return namespaces;
    }

    /**
     * @param node
     * @return the name of the XML node (with no name space element)
     */
    public static String getNodeName(Node node) {

        String name = node.getNamespaceURI() != null ? node.getLocalName() : node.getNodeName();
        if (name.contains(":")) { //$NON-NLS-1$
            String[] parts = name.split(":"); //$NON-NLS-1$
            name = parts[parts.length - 1];
        }

        return name;
    }
}

Related

1. copyNamespaces(Node source, Node target)
2. getNamespace(Node node)
3. getNamespace(Node node)
4. getNamespace(String prefix, Node e)
5. getNamespaceDeclarations(Node node)
6. getNamespaces(Node node, Map list)
7. getNamespaceURI(@Nullable final Node aNode)
8. getNamespaceURI(final org.w3c.dom.Node n, final String prefix)
9. getNamespaceURI(Node node)