Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import java.io.BufferedReader;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringReader;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;

import javax.xml.bind.Unmarshaller;

public class Main {
    private final static int LOOKAHEAD = 1024;

    public static Object xmlToJaxb(Class<?> xmlClass, String xml) throws JAXBException {
        JAXBContext jaxbContext = JAXBContext.newInstance(xmlClass);
        Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
        JAXBElement<?> element;
        try (StringReader reader = new StringReader(xml)) {
            element = (JAXBElement<?>) unmarshaller.unmarshal(reader);
        }
        return element.getValue();
    }

    public static Object xmlToJaxb(Class<?> xmlClass, InputStream is) throws JAXBException, IOException {
        JAXBContext jaxbContext = JAXBContext.newInstance(xmlClass);
        Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
        JAXBElement<?> element = (JAXBElement<?>) unmarshaller.unmarshal(getReader(is));
        return element.getValue();
    }

    private static Reader getReader(InputStream is) throws IOException {
        Reader reader = new BufferedReader(new InputStreamReader(is));
        char c[] = "<?".toCharArray();
        int pos = 0;
        reader.mark(LOOKAHEAD);
        while (true) {
            int value = reader.read();

            // Check to see if we hit the end of the stream.
            if (value == -1) {
                throw new IOException("Encounter end of stream before start of XML.");
            } else if (value == c[pos]) {
                pos++;
            } else {
                if (pos > 0) {
                    pos = 0;
                }
                reader.mark(LOOKAHEAD);
            }

            if (pos == c.length) {
                // We found the character set we were looking for.
                reader.reset();
                break;
            }
        }

        return reader;
    }
}