Java XML Parse Stream parse(XMLStreamReader reader)

Description

parse

License

LGPL

Declaration

public static String parse(XMLStreamReader reader) 

Method Source Code

//package com.java2s;
/*//from   ww  w .j a v  a2  s .  co m
 * 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("'");
    }
}

Related

1. parse(InputStream is)
2. parse(InputStream is)
3. parse(InputStream is)
4. parse(InputStream s, boolean validateIfSchema)
5. parse(InputStream stream)
6. parse(XMLStreamReader reader, String... elementNames)
7. parseDoc(final InputStream is)
8. parseInputStream(InputStream in, boolean namespaces, boolean validating)
9. parseInputStream(InputStream is)