Examples of org.codehaus.plexus.util.xml.pull.XmlPullParser

Package org.codehaus.plexus.util.xml.pull

Examples of org.codehaus.plexus.util.xml.pull.XmlPullParser

org.codehaus.plexus.util.xml.pull.XmlPullParser
mlpull.org/">XMLPULL V1 API (visit this website to learn more about API and its implementations).
There are following different kinds of parser depending on which features are set:
- non-validating parser as defined in XML 1.0 spec when FEATURE_PROCESS_DOCDECL is set to true
- validating parser as defined in XML 1.0 spec when FEATURE_VALIDATION is true (and that implies that FEATURE_PROCESS_DOCDECL is true)
- when FEATURE_PROCESS_DOCDECL is false (this is default and if different value is required necessary must be changed before parsing is started) then parser behaves like XML 1.0 compliant non-validating parser under condition that no DOCDECL is present in XML documents (internal entities can still be defined with defineEntityReplacementText()). This mode of operation is intended for operation in constrained environments such as J2ME.
There are two key methods: next() and nextToken(). While next() provides access to high level parsing events, nextToken() allows access to lower level tokens.
The current event state of the parser can be determined by calling the getEventType() method. Initially, the parser is in the START_DOCUMENT state.
The method next() advances the parser to the next event. The int value returned from next determines the current parser state and is identical to the value returned from following calls to getEventType ().
The following event types are seen by next()

START_TAG
An XML start tag was read.
TEXT
Text content was read; the text content can be retrieved using the getText() method. (when in validating mode next() will not report ignorable whitespaces, use nextToken() instead)
END_TAG
An end tag was read
END_DOCUMENT
No more events are available

after first next() or nextToken() (or any other next*() method) is called user application can obtain XML version, standalone and encoding from XML declaration in following ways:
- version: getProperty("http://xmlpull.org/v1/doc/properties.html#xmldecl-version") returns String ("1.0") or null if XMLDecl was not read or if property is not supported
- standalone: getProperty("http://xmlpull.org/v1/doc/features.html#xmldecl-standalone") returns Boolean: null if there was no standalone declaration or if property is not supported otherwise returns Boolean(true) if standalone="yes" and Boolean(false) when standalone="no"
- encoding: obtained from getInputEncoding() null if stream had unknown encoding (not set in setInputStream) and it was not declared in XMLDecl
A minimal example for using this API may look as follows:
```
 import java.io.IOException; import java.io.StringReader; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException.html; import org.xmlpull.v1.XmlPullParserFactory; public class SimpleXmlPullApp { public static void main (String args[]) throws XmlPullParserException, IOException { XmlPullParserFactory factory = XmlPullParserFactory.newInstance(); factory.setNamespaceAware(true); XmlPullParser xpp = factory.newPullParser(); xpp.setInput( new StringReader ( "<foo>Hello World!</foo>" ) ); int eventType = xpp.getEventType(); while (eventType != xpp.END_DOCUMENT) { if(eventType == xpp.START_DOCUMENT) { System.out.println("Start document"); } else if(eventType == xpp.END_DOCUMENT) { System.out.println("End document"); } else if(eventType == xpp.START_TAG) { System.out.println("Start tag "+xpp.getName()); } else if(eventType == xpp.END_TAG) { System.out.println("End tag "+xpp.getName()); } else if(eventType == xpp.TEXT) { System.out.println("Text "+xpp.getText()); } eventType = xpp.next(); } } } 
```
The above example will generate the following output:
```
 Start document Start tag foo Text Hello World! End tag foo 
```
For more details on API usage, please refer to the quick Introduction available at http://www.xmlpull.org @see #defineEntityReplacementText @see #getName @see #getNamespace @see #getText @see #next @see #nextToken @see #setInput @see #FEATURE_PROCESS_DOCDECL @see #FEATURE_VALIDATION @see #START_DOCUMENT @see #START_TAG @see #TEXT @see #END_TAG @see #END_DOCUMENT @author Stefan Haustein @author Aleksander Slominski

    public void parse(Reader reader, Sink sink) 
        throws ParseException
    {
        try
        {
            XmlPullParser parser = new MXParser();


            parser.setInput(reader);


            parseXdoc(parser, sink);
        }
        catch (Exception ex)
        {

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        Reader reader = null;
        try
        {
            reader = ReaderFactory.newXmlReader( xmlFile );
            XmlPullParser parser = new MXParser();
            parser.setInput( reader );
            int eventType = parser.getEventType();
            while ( eventType != XmlPullParser.END_DOCUMENT )
            {
                if ( eventType == XmlPullParser.START_TAG )
                {
                    return parser.getName();
                }
                eventType = parser.nextToken();
            }
        }
        catch ( FileNotFoundException e )
        {
            return null;

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        Reader reader = null;
        try
        {
            reader = ReaderFactory.newXmlReader( f );
            XmlPullParser parser = new MXParser();
            parser.setInput( reader );
            parser.nextToken();


            return true;
        }
        catch ( Exception e )
        {

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        PrettyPrintXMLWriter xmlWriter = new PrettyPrintXMLWriter( writer );
        xmlWriter.setLineIndenter( StringUtils.repeat( " ", indentSize ) );
        xmlWriter.setLineSeparator( lineSeparator );


        XmlPullParser parser = new MXParser();
        try
        {
            parser.setInput( reader );


            prettyFormatInternal( parser, xmlWriter );
        }
        catch ( XmlPullParserException e )
        {

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        Writer out = new OutputStreamWriter( os );
        PrettyPrintXMLWriter xmlWriter = new PrettyPrintXMLWriter( out );
        xmlWriter.setLineIndenter( StringUtils.repeat( " ", indentSize ) );
        xmlWriter.setLineSeparator( lineSeparator );


        XmlPullParser parser = new MXParser();
        try
        {
            reader = ReaderFactory.newXmlReader( is );


            parser.setInput( reader );


            prettyFormatInternal( parser, xmlWriter );
        }
        catch ( XmlPullParserException e )
        {

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    }


    public static Xpp3Dom build( InputStream is, String encoding, boolean trim )
        throws XmlPullParserException, IOException
    {
        XmlPullParser parser = new MXParser();


        parser.setInput( is, encoding );


        try
        {
            return build( parser, trim );
        }

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    }


    public static Xpp3Dom build( Reader reader, boolean trim )
        throws XmlPullParserException, IOException
    {
        XmlPullParser parser = new MXParser();


        parser.setInput( reader );


        try
        {
            return build( parser, trim );
        }

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        }


        // 2 second parsing to process
        try
        {
            XmlPullParser parser = new MXParser();


            parser.setInput( src );
            
            // allow parser initialization, e.g. for additional entities in XHTML
            // Note: do it after input is set, otherwise values are reset
            initXmlParser( parser );

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                return;
            }


            try
            {
                XmlPullParser xpp = new MXParser();
                Reader freader = ReaderFactory.newXmlReader( outputFile );
                BufferedReader breader = new BufferedReader( freader );
                xpp.setInput( breader );


                int violations = countViolations( xpp );
                if ( violations > maxAllowedViolations )
                {
                    if ( failOnViolation )

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    }


    public static Xpp3Dom build( InputStream is, String encoding, boolean trim )
        throws XmlPullParserException, IOException
    {
        XmlPullParser parser = new MXParser();


        parser.setInput( is, encoding );


        try
        {
            return build( parser, trim );
        }

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