get XML Node Attribute As Int - Android XML

Android examples for XML:XML Attribute

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Description

get XML Node Attribute As Int

Demo Code

/**/*from  w  ww.  j av a2s  . co m*/
 *  Copyright (C) 2008-2015  Telosys project org. ( http://www.telosys.org/ )
 *
 *  Licensed under the GNU LESSER GENERAL PUBLIC LICENSE, Version 3.0 (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.gnu.org/licenses/lgpl.html
 *
 *  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.
 */
//package com.java2s;

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

public class Main {
    /**
     * @param node
     * @param attributeName
     * @return
     * @throws TelosysToolsException
     */
    public static int getNodeAttributeAsInt(Node node, String attributeName) {
        String s = getNodeAttribute(node, attributeName);
        if (null == s) {
            throw new RuntimeException("XML error : int attribute '"
                    + attributeName + "' not found");
        } else {
            return convertToInt(attributeName, s);
        }
    }

    /**
     * @param node
     * @param attributeName
     * @param defaultValue
     * @return
     * @throws TelosysToolsException
     */
    public static int getNodeAttributeAsInt(Node node,
            String attributeName, int defaultValue) {
        String s = getNodeAttribute(node, attributeName);
        if (null == s) {
            return defaultValue;
        } else {
            return convertToInt(attributeName, s);
        }
    }

    /**
     * @param node
     * @param attributeName
     * @return
     */
    public static String getNodeAttribute(Node node, String attributeName) {
        String sRetValue = null;
        NamedNodeMap attributes = node.getAttributes();
        if (attributes != null) {
            //--- Find the attribute 
            Node attrib = attributes.getNamedItem(attributeName);
            if (attrib != null) {
                //--- Get the attribute value
                sRetValue = attrib.getNodeValue();
            }
        }
        return sRetValue;
    }

    private static int convertToInt(String sAttributeName, String s) {
        int i = 0;
        try {
            i = Integer.parseInt(s);
        } catch (NumberFormatException e) {
            throw new RuntimeException("XML error : attribute '"
                    + sAttributeName + "' is not an integer", e);
        }
        return i;
    }
}

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