Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2012 Johns Hopkins University
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * 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.
 */

import java.io.File;
import java.io.FileReader;
import java.io.IOException;
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.xml.sax.InputSource;
import org.xml.sax.SAXException;

public class Main {
    private static DocumentBuilder docBuilder;

    public static Document createDocument(InputSource input) throws IOException, SAXException {

        if (docBuilder == null) {
            DocumentBuilderFactory fact = DocumentBuilderFactory.newInstance();
            fact.setNamespaceAware(true);
            try {
                docBuilder = fact.newDocumentBuilder();
            } catch (ParserConfigurationException e) {
                throw new RuntimeException(e);
            }
        }

        return docBuilder.parse(input);
    }

    public static Document createDocument() throws SAXException {
        if (docBuilder == null) {
            DocumentBuilderFactory fact = DocumentBuilderFactory.newInstance();
            fact.setNamespaceAware(true);
            try {
                docBuilder = fact.newDocumentBuilder();
            } catch (ParserConfigurationException e) {
                throw new RuntimeException(e);
            }
        }

        return docBuilder.newDocument();
    }

    public static Document createDocument(String xml) throws IOException, SAXException {
        return createDocument(new InputSource(new StringReader(xml)));
    }

    public static Document createDocument(File file) throws IOException, SAXException {
        return createDocument(new InputSource(new FileReader(file)));
    }
}