Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

public class Main {
    /**
     * Read application-context file, and return fully qualified class name for
     * given <code>beanName</code>
     * 
     * @param beanName
     * @return
     * 
     */
    public static String getFullyQualifiedClass(String beanName) {

        DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();

        docBuilderFactory.setNamespaceAware(true);

        String nodeValue = "";

        try {
            DocumentBuilder builder = docBuilderFactory.newDocumentBuilder();
            Document doc = builder.parse("application-context.xml");

            XPathFactory factory = XPathFactory.newInstance();
            XPath xpath = factory.newXPath();
            XPathExpression expr = xpath.compile("//bean[@name='" + beanName + "']/@class");

            Object result = expr.evaluate(doc, XPathConstants.NODESET);

            NodeList nodes = (NodeList) result;
            if (nodes.getLength() > 0) {
                nodeValue = nodes.item(0).getNodeValue();
            }
        } catch (ParserConfigurationException parserConfigurationException) {
            parserConfigurationException.printStackTrace();
        } catch (IOException ioException) {
            ioException.printStackTrace();
        } catch (SAXException saxException) {
            saxException.printStackTrace();
        } catch (XPathExpressionException xPathExpressionException) {
            xPathExpressionException.printStackTrace();
        }

        return nodeValue;
    }
}