Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.io.InputStream;
import java.io.InputStreamReader;

import java.io.Reader;
import java.io.StringReader;

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.InputSource;

public class Main {
    public static Element newTemplate(String xml) throws Exception {
        Document doc = readXML(xml);
        return doc.getDocumentElement();
    }

    /**
     * Parses the given input stream and returns the corresponding desirialized
     * XML document.
     * 
     * @param input the input stream containing the serialized XML document
     * @return the deserialized DOM document
     * @throws Exception
     */
    public static Document readXML(InputStream input) throws Exception {
        return readXML(new InputStreamReader(input, "UTF-8"));
    }

    /**
     * Parses the given input stream and returns the corresponding desirialized
     * XML document.
     * 
     * @param reader the reader containing the serialized XML document
     * @return the deserialized DOM document
     * @throws Exception
     */
    public static Document readXML(Reader reader) throws Exception {
        try {
            DocumentBuilder builder = getDocumentBuilder();
            InputSource source = new InputSource(reader);
            Document doc = builder.parse(source);
            return doc;
        } finally {
            reader.close();
        }
    }

    public static Document readXML(String str) throws Exception {
        if (str == null) {
            return null;
        }
        Reader reader = new StringReader(str);
        return readXML(reader);
    }

    /**
     * Creates and returns an new document builder factory. This method tries to
     * configure the namespace support for the builder. If the underlying parser
     * does not support namespaces then this method returns a simple
     * DocumentBuilder object.
     * 
     * @return a new document builder
     * @throws ParserConfigurationException
     */
    private static DocumentBuilder getDocumentBuilder() throws ParserConfigurationException {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        factory.setNamespaceAware(true); // never forget this!
        try {
            factory.setFeature("http://xml.org/sax/features/namespaces", true);
        } catch (Throwable t) {
            // Just skip it...
        }
        DocumentBuilder builder = factory.newDocumentBuilder();
        return builder;
    }
}