Examples of org.xml.sax.helpers.ParserAdapter

org.xml.sax.helpers.ParserAdapter
Adapt a SAX1 Parser as a SAX2 XMLReader.
This module, both source code and documentation, is in the Public Domain, and comes with NO WARRANTY.

This class wraps a SAX1 {@link org.xml.sax.Parser Parser}and makes it act as a SAX2 {@link org.xml.sax.XMLReader XMLReader}, with feature, property, and Namespace support. Note that it is not possible to report {@link org.xml.sax.ContentHandler#skippedEntity skippedEntity} events, since SAX1 does not make that information available.
This adapter does not test for duplicate Namespace-qualified attribute names.
@since SAX 2.0 @author David Megginson, sax@megginson.com @version 2.0r2pre @see org.xml.sax.helpers.XMLReaderAdapter @see org.xml.sax.XMLReader @see org.xml.sax.Parser

        catch (Exception e) {
            if (DebugFile.trace) DebugFile.writeln ("ParserFactory.makeParser(" + DEFAULT_PARSER_NAME + ")");


            sax1Parser = ParserFactory.makeParser(DEFAULT_PARSER_NAME);


            parser = new ParserAdapter(sax1Parser);
            if (DebugFile.trace)
              DebugFile.writeln("warning: Features and properties not supported on SAX1 parsers.");
        }
        try {
          parser.setFeature(NAMESPACES_FEATURE_ID, DEFAULT_NAMESPACES);

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          parser = XMLReaderFactory.createXMLReader(DEFAULT_PARSER_NAME);
        }
        catch (Exception e) {
            sax1Parser = ParserFactory.makeParser(DEFAULT_PARSER_NAME);
            parser = new ParserAdapter(sax1Parser);
            if (DebugFile.trace)
              DebugFile.writeln("warning: Features and properties not supported on SAX1 parsers.");
        }


      // parse file

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    public WeightedDirectedMultigraph<String> readWeightedDirectedMultigraph(
            File f, Indexer<String> vertexLabels) throws IOException {        
        try {
            SAXParserFactory spf = SAXParserFactory.newInstance();
            SAXParser sp = spf.newSAXParser();
            ParserAdapter pa = new ParserAdapter(sp.getParser());
            
            GraphMLParser parser = new GraphMLParser(vertexLabels);
            
            pa.setContentHandler(parser);
            pa.setErrorHandler(parser);
            pa.parse(new InputSource(new BufferedInputStream(new FileInputStream(f))));
            return parser.g;
        } catch (SAXException saxe) {
            throw new IOException(saxe);
        } catch (ParserConfigurationException saxe) {
            throw new IOException(saxe);

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                        parser = XMLReaderFactory.createXMLReader(parserName);
                    }
                    catch (Exception e) {
                        try {
                            Parser sax1Parser = ParserFactory.makeParser(parserName);
                            parser = new ParserAdapter(sax1Parser);
                            System.err.println("warning: Features and properties not supported on SAX1 parsers.");
                        }
                        catch (Exception ex) {
                            parser = null;
                            System.err.println("error: Unable to instantiate parser ("+parserName+")");

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                        parser = XMLReaderFactory.createXMLReader(parserName);
                    }
                    catch (Exception e) {
                        try {
                            Parser sax1Parser = ParserFactory.makeParser(parserName);
                            parser = new ParserAdapter(sax1Parser);
                            System.err.println("warning: Features and properties not supported on SAX1 parsers.");
                        }
                        catch (Exception ex) {
                            parser = null;
                            System.err.println("error: Unable to instantiate parser ("+parserName+")");

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      if (parserFactory == null) {
        parserFactory = getSAXParserFactory();
      }


      SAXParser sp = parserFactory.newSAXParser();
      ParserAdapter pa = new ParserAdapter(sp.getParser());
      pa.setContentHandler(this);
      pa.parse(is);


    } catch (SAXException e) {


      Exception rootException = e.getException();

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                Project.MSG_VERBOSE);
        } else {


            // see if it is a SAX1 Parser
            if (reader instanceof Parser) {
                newReader = new ParserAdapter((Parser) reader);
                log(
                    "Using SAX1 parser " + reader.getClass().getName(),
                    Project.MSG_VERBOSE);
            } else {
                throw new BuildException(

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                Project.MSG_VERBOSE);
        } else {


            // see if it is a SAX1 Parser
            if (reader instanceof Parser) {
                xmlReader = new ParserAdapter((Parser) reader);
                log("Using SAX1 parser " + reader.getClass().getName(),
                    Project.MSG_VERBOSE);
            }  else {
                throw new BuildException(INIT_FAILED_MSG
                    + reader.getClass().getName()

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        // read in XML file and parse to content handler
        try {
            SAXParserFactory factory = SAXParserFactory.newInstance();
            SAXParser parser = factory.newSAXParser();
            ParserAdapter adapter = new ParserAdapter(parser.getParser());


            adapter.setContentHandler(documentFilter);
            adapter.parse(requestSource);
            LOGGER.fine("just parsed: " + requestSource);
        } catch (SAXException e) {
            throw new ServiceException(e, "XML getFeature request SAX parsing error",
                XmlRequestReader.class.getName());
        } catch (IOException e) {

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        try {
            LOGGER.finest("about to create parser");


            SAXParserFactory factory = SAXParserFactory.newInstance();
            SAXParser parser = factory.newSAXParser();
            ParserAdapter adapter = new ParserAdapter(parser.getParser());
            LOGGER.finest("setting the content handler");
            LOGGER.finest("content handler = " + documentFilter);
            adapter.setContentHandler(documentFilter);
            LOGGER.finest("about to parse");
            LOGGER.finest("calling parse on " + requestSource);
            adapter.parse(requestSource);
            LOGGER.fine("just parsed: " + requestSource);
        } catch (SAXException e) {
            e.printStackTrace(System.out);
            throw new WfsException(e, "XML getFeature request SAX parsing error",
                XmlRequestReader.class.getName());

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