Java XML Attribute Remove removeUnspecifiedIfmapAttributes(Node meta)

Description

Method to remove attributes from Metadata elements, which start with "ifmap-", but are not allowed to be sent by IFMAP-Client.

License

Apache License

Parameter

Parameter	Description
meta	a parameter

Declaration

public static void removeUnspecifiedIfmapAttributes(Node meta) 

Method Source Code

//package com.java2s;
/*/* w  w  w . j a  v  a  2s  . co m*/
 * #%L
 * =====================================================
 *   _____                _     ____  _   _       _   _
 *  |_   _|_ __ _   _ ___| |_  / __ \| | | | ___ | | | |
 *    | | | '__| | | / __| __|/ / _` | |_| |/ __|| |_| |
 *    | | | |  | |_| \__ \ |_| | (_| |  _  |\__ \|  _  |
 *    |_| |_|   \__,_|___/\__|\ \__,_|_| |_||___/|_| |_|
 *                             \____/
 * 
 * =====================================================
 * 
 * Hochschule Hannover
 * (University of Applied Sciences and Arts, Hannover)
 * Faculty IV, Dept. of Computer Science
 * Ricklinger Stadtweg 118, 30459 Hannover, Germany
 * 
 * Email: trust@f4-i.fh-hannover.de
 * Website: http://trust.f4.hs-hannover.de/
 * 
 * This file is part of irond, version 0.5.3, implemented by the Trust@HsH
 * research group at the Hochschule Hannover.
 * %%
 * Copyright (C) 2010 - 2015 Trust@HsH
 * %%
 * 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.
 * #L%
 */

import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;

public class Main {
    /**
     * Method to remove attributes from Metadata elements, which start with
     * "ifmap-", but are not allowed to be sent by IFMAP-Client.
     *
     * TODO:
     * - A logger statement would be nice if attributes are removed
     *
     * @param meta
     */
    public static void removeUnspecifiedIfmapAttributes(Node meta) {
        // clients are only allowed to send ifmap-cardinality
        String[] specifiedIfmapAttributes = { "ifmap-cardinality" };

        if (meta == null) {
            return;
        }

        NamedNodeMap nnm = meta.getAttributes();

        for (int i = 0; nnm != null && i < nnm.getLength(); i++) {
            Node attrNode = nnm.item(i);

            if (attrNode.getNodeType() != Node.ATTRIBUTE_NODE) {
                continue;
            }

            String attrNodeName = attrNode.getLocalName();

            boolean notSpecified = true;
            if (attrNodeName.startsWith("ifmap-")) {
                for (String sa : specifiedIfmapAttributes) {
                    if (attrNodeName.equals(sa)) {
                        notSpecified = false;
                        break;
                    }
                }
            } else {
                // not "ifmap-" prefixed, we are not interested
                continue;
            }

            // remove
            if (notSpecified) {
                nnm.removeNamedItem(attrNodeName);
            }
        }
    }
}

Related

1. removeNodeAttribute(Node node, String attributeName)
2. removeNodeAttribute(Node node, String name)
3. removeNodeAttributes(Node node)
4. removeNodeContents(Node aSource, boolean aRemoveAttrs)
5. removePrefixes(final String xml, final boolean ignoreAttrValues)
6. removeXmlBaseAttributes(Node node)
7. removeXmlNsAttribute(final Node node)