Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

import org.xml.sax.SAXException;

public class Main {

    public static int getNodeSizeFromXmlStr(String xmlStr, String nodeName) {
        int size = 0;
        xmlStr = xmlStr.trim();
        Element element = getRootNodeFromXmlStr(xmlStr);
        size = element.getElementsByTagName(nodeName).getLength();
        return size;
    }

    private static Element getRootNodeFromXmlStr(String xmlStr) {
        Element element = null;
        try {
            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
            DocumentBuilder db = dbf.newDocumentBuilder();
            InputStream is = new ByteArrayInputStream(xmlStr.getBytes("UTF-8"));
            Document document = db.parse(is);
            element = document.getDocumentElement();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (ParserConfigurationException e) {
            e.printStackTrace();
        } catch (SAXException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return element;
    }
}