Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
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.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

public class Main {
    public static String replaceXPath(Document domDocument, String search, String replace) {
        try {
            NodeList nodes = getXPathNodes(search, domDocument);
            for (int i = 0; i < nodes.getLength(); i++) {
                //logger.debug("Replacing");
                Node node = nodes.item(i);
                node.setTextContent(replace);
            }
            return getDomDocumentAsXml(domDocument);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static NodeList getXPathNodes(String search, String file) {
        return getXPathNodes(search, getDomDocument(file));
    }

    public static NodeList getXPathNodes(String search, Document domDocument) {
        return getXPathNodes(search, domDocument, getXPathInstance());
    }

    public static NodeList getXPathNodes(String search, Document domDocument, XPath xpathInstance) {
        try {
            XPathExpression expr = xpathInstance.compile(search);
            return (NodeList) expr.evaluate(domDocument, XPathConstants.NODESET);
        } catch (XPathExpressionException e) {
            e.printStackTrace();
            return null;
        }
    }

    public static String getDomDocumentAsXml(org.w3c.dom.Document domDocument) {
        try {
            TransformerFactory tf = TransformerFactory.newInstance();
            Transformer transformer = tf.newTransformer();
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            StreamResult xmlOutput = new StreamResult(new StringWriter());
            transformer.transform(new DOMSource(domDocument), xmlOutput);
            return xmlOutput.getWriter().toString();
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static Document getDomDocument(String source) {
        return getDomDocument(source, true);
    }

    public static Document getDomDocument(String source, boolean sourceIsFile) {
        try {
            DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
            domFactory.setNamespaceAware(false); // NEVER FORGET THIS
            DocumentBuilder builder = domFactory.newDocumentBuilder();
            if (sourceIsFile == false) {
                return builder.parse(new InputSource(new StringReader(source)));
            } else {
                return builder.parse(source);
            }
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        } catch (ParserConfigurationException e) {
            e.printStackTrace();
            return null;
        } catch (SAXException e) {
            e.printStackTrace();
            return null;
        }
    }

    public static XPath getXPathInstance() {
        XPathFactory factory = XPathFactory.newInstance();
        return factory.newXPath();
    }
}