Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright LGPL3
 * YES Technology Association
 * http://yestech.org
 *
 * http://www.opensource.org/licenses/lgpl-3.0.html
 */

import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;

public class Main {
    public static String parse(XMLStreamReader reader) {
        StringBuffer result = new StringBuffer();
        if (reader != null) {
            try {
                while (reader.hasNext()) {
                    switch (reader.getEventType()) {

                    case XMLStreamConstants.START_ELEMENT:
                        result.append("<");
                        printName(reader, result);
                        printNamespaces(reader, result);
                        printAttributes(reader, result);
                        result.append(">");
                        break;

                    case XMLStreamConstants.END_ELEMENT:
                        result.append("</");
                        printName(reader, result);
                        result.append(">");
                        break;

                    case XMLStreamConstants.SPACE:

                    case XMLStreamConstants.CHARACTERS:
                        int start = reader.getTextStart();
                        int length = reader.getTextLength();
                        result.append(new String(reader.getTextCharacters(), start, length));
                        break;

                    case XMLStreamConstants.PROCESSING_INSTRUCTION:
                        result.append("<?");
                        if (reader.hasText())
                            result.append(reader.getText());
                        result.append("?>");
                        break;

                    case XMLStreamConstants.CDATA:
                        result.append("<![CDATA[");
                        start = reader.getTextStart();
                        length = reader.getTextLength();
                        result.append(new String(reader.getTextCharacters(), start, length));
                        result.append("]]>");
                        break;

                    case XMLStreamConstants.COMMENT:
                        result.append("<!--");
                        if (reader.hasText())
                            result.append(reader.getText());
                        result.append("-->");
                        break;

                    case XMLStreamConstants.ENTITY_REFERENCE:
                        result.append(reader.getLocalName()).append("=");
                        if (reader.hasText())
                            result.append("[").append(reader.getText()).append("]");
                        break;

                    case XMLStreamConstants.START_DOCUMENT:
                        result.append("<?xml");
                        result.append(" version='").append(reader.getVersion()).append("'");
                        result.append(" encoding='").append(reader.getCharacterEncodingScheme()).append("'");
                        if (reader.isStandalone())
                            result.append(" standalone='yes'");
                        else
                            result.append(" standalone='no'");
                        result.append("?>");
                        break;
                    }
                    reader.next();
                } // end while
            } catch (XMLStreamException e) {
                throw new RuntimeException(e);
            } finally {
                try {
                    reader.close();
                } catch (XMLStreamException e) {
                }
            }
        }
        return result.toString();
    }

    private static void printName(XMLStreamReader xmlr, StringBuffer result) {
        if (xmlr.hasName()) {
            String prefix = xmlr.getPrefix();
            String uri = xmlr.getNamespaceURI();
            String localName = xmlr.getLocalName();
            printName(prefix, uri, localName, result);
        }
    }

    private static void printName(String prefix, String uri, String localName, StringBuffer result) {
        if (uri != null && !("".equals(uri)))
            result.append("['").append(uri).append("']:");
        if (prefix != null)
            result.append(prefix).append(":");
        if (localName != null)
            result.append(localName);
    }

    private static void printNamespaces(XMLStreamReader xmlr, StringBuffer result) {
        for (int i = 0; i < xmlr.getNamespaceCount(); i++) {
            printNamespace(xmlr, i, result);
        }
    }

    private static void printAttributes(XMLStreamReader xmlr, StringBuffer result) {
        for (int i = 0; i < xmlr.getAttributeCount(); i++) {
            printAttribute(xmlr, i, result);
        }
    }

    private static void printNamespace(XMLStreamReader xmlr, int index, StringBuffer result) {
        String prefix = xmlr.getNamespacePrefix(index);
        String uri = xmlr.getNamespaceURI(index);
        result.append(" ");
        if (prefix == null)
            result.append("xmlns='").append(uri).append("'");
        else
            result.append("xmlns:").append(prefix).append("='").append(uri).append("'");
    }

    private static void printAttribute(XMLStreamReader xmlr, int index, StringBuffer result) {
        String prefix = xmlr.getAttributePrefix(index);
        String namespace = xmlr.getAttributeNamespace(index);
        String localName = xmlr.getAttributeLocalName(index);
        String value = xmlr.getAttributeValue(index);
        result.append(" ");
        printName(prefix, namespace, localName, result);
        result.append("='").append(value).append("'");
    }
}