Example usage for org.xml.sax XMLReader setErrorHandler

Introduction

In this page you can find the example usage for org.xml.sax XMLReader setErrorHandler.

Prototype

public void setErrorHandler(ErrorHandler handler);

Source Link

Document

Allow an application to register an error event handler.

Usage

From source file:org.eclipse.rdf4j.rio.trix.TriXParser.java

private void parse(InputSource inputStreamOrReader) throws IOException, RDFParseException, RDFHandlerException {
    clear();/*from  w  w w . j av a2s  .co m*/

    try {
        if (rdfHandler != null) {
            rdfHandler.startRDF();
        }

        XMLReader xmlReader;

        if (getParserConfig().isSet(XMLParserSettings.CUSTOM_XML_READER)) {
            xmlReader = getParserConfig().get(XMLParserSettings.CUSTOM_XML_READER);
        } else {
            xmlReader = XMLReaderFactory.createXMLReader();
        }

        xmlReader.setErrorHandler(this);

        saxParser = new SimpleSAXParser(xmlReader);
        saxParser.setPreserveWhitespace(true);
        saxParser.setListener(new TriXSAXHandler());

        saxParser.parse(inputStreamOrReader);
    } catch (SAXParseException e) {
        Exception wrappedExc = e.getException();

        if (wrappedExc == null) {
            reportFatalError(e, e.getLineNumber(), e.getColumnNumber());
        } else {
            reportFatalError(wrappedExc, e.getLineNumber(), e.getColumnNumber());
        }
    } catch (SAXException e) {
        Exception wrappedExc = e.getException();

        if (wrappedExc == null) {
            reportFatalError(e);
        } else if (wrappedExc instanceof RDFParseException) {
            throw (RDFParseException) wrappedExc;
        } else if (wrappedExc instanceof RDFHandlerException) {
            throw (RDFHandlerException) wrappedExc;
        } else {
            reportFatalError(wrappedExc);
        }
    } finally {
        clear();
    }

    if (rdfHandler != null) {
        rdfHandler.endRDF();
    }
}

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From source file:org.everit.authentication.cas.CasAuthentication.java

/**
 * Returns the value of an XML element. This method is used to process the XMLs sent by the CAS
 * server./*ww w . ja va 2  s.  co  m*/
 *
 * @param xmlAsString
 *          the XML string to process
 * @param elementName
 *          the name of the queried element
 * @return the value assigned to the queried element name
 * @throws RuntimeException
 *           if any error occurs during the parsing of the XML string
 */
private String getTextForElement(final String xmlAsString, final String elementName) {

    XMLReader xmlReader;
    try {
        xmlReader = saxParserFactory.newSAXParser().getXMLReader();
        xmlReader.setFeature("http://xml.org/sax/features/namespaces", true);
        xmlReader.setFeature("http://xml.org/sax/features/namespace-prefixes", false);
        xmlReader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
    } catch (SAXException | ParserConfigurationException e) {
        throw new RuntimeException("Unable to create XMLReader", e);
    }

    StringBuilder builder = new StringBuilder();

    DefaultHandler handler = new DefaultHandlerExt(builder, elementName);

    xmlReader.setContentHandler(handler);
    xmlReader.setErrorHandler(handler);

    try {
        xmlReader.parse(new InputSource(new StringReader(xmlAsString)));
    } catch (Exception e) {
        throw new RuntimeException(e);
    }

    return builder.toString();
}

---

From source file:org.everit.osgi.authentication.cas.internal.CasAuthenticationComponent.java

/**
 * Returns the value of an XML element. This method is used to process the XMLs sent by the CAS server.
 *
 * @param xmlAsString/*from w  w  w.ja  v a2  s .c om*/
 *            the XML string to process
 * @param elementName
 *            the name of the queried element
 * @return the value assigned to the queried element name
 * @throws RuntimeException
 *             if any error occurs during the parsing of the XML string
 */
private String getTextForElement(final String xmlAsString, final String elementName) {

    XMLReader xmlReader;
    try {
        xmlReader = saxParserFactory.newSAXParser().getXMLReader();
        xmlReader.setFeature("http://xml.org/sax/features/namespaces", true);
        xmlReader.setFeature("http://xml.org/sax/features/namespace-prefixes", false);
        xmlReader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
    } catch (final Exception e) {
        throw new RuntimeException("Unable to create XMLReader", e);
    }

    StringBuilder builder = new StringBuilder();

    DefaultHandler handler = new DefaultHandler() {

        private boolean foundElement = false;

        @Override
        public void characters(final char[] ch, final int start, final int length) throws SAXException {
            if (foundElement) {
                builder.append(ch, start, length);
            }
        }

        @Override
        public void endElement(final String uri, final String localName, final String qName)
                throws SAXException {
            if (localName.equals(elementName)) {
                foundElement = false;
            }
        }

        @Override
        public void startElement(final String uri, final String localName, final String qName,
                final Attributes attributes) throws SAXException {
            if (localName.equals(elementName)) {
                foundElement = true;
            }
        }
    };

    xmlReader.setContentHandler(handler);
    xmlReader.setErrorHandler(handler);

    try {
        xmlReader.parse(new InputSource(new StringReader(xmlAsString)));
    } catch (Exception e) {
        throw new RuntimeException(e);
    }

    return builder.toString();
}

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From source file:org.exist.mongodb.xquery.gridfs.Get.java

/**
 * Parse an byte-array containing (compressed) XML data into an eXist-db
 * document.// w  w w.j av a 2s . c  o m
 *
 * @param data Byte array containing the XML data.
 * @return Sequence containing the XML as DocumentImpl
 *
 * @throws XPathException Something bad happened.
 */
private Sequence processXML(XQueryContext xqueryContext, InputStream is) throws XPathException {

    Sequence content = null;
    try {
        final ValidationReport validationReport = new ValidationReport();
        final SAXAdapter adapter = new SAXAdapter(xqueryContext);
        final SAXParserFactory factory = SAXParserFactory.newInstance();
        factory.setNamespaceAware(true);
        final InputSource src = new InputSource(is);
        final SAXParser parser = factory.newSAXParser();
        XMLReader xr = parser.getXMLReader();

        xr.setErrorHandler(validationReport);
        xr.setContentHandler(adapter);
        xr.setProperty(Namespaces.SAX_LEXICAL_HANDLER, adapter);

        xr.parse(src);

        // Cleanup
        IOUtils.closeQuietly(is);

        if (validationReport.isValid()) {
            content = (DocumentImpl) adapter.getDocument();
        } else {
            String txt = String.format("Received document is not valid: %s", validationReport.toString());
            LOG.debug(txt);
            throw new XPathException(txt);
        }

    } catch (SAXException | ParserConfigurationException | IOException ex) {
        LOG.error(ex.getMessage(), ex);
        throw new XPathException(ex.getMessage());

    }

    return content;
}

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From source file:org.exist.util.XMLReaderPool.java

public synchronized void returnXMLReader(XMLReader reader) {
    if (reader == null) {
        return;/* w  ww. j  a  va 2s. c om*/
    }

    try {
        reader.setContentHandler(DUMMY_HANDLER);
        reader.setErrorHandler(DUMMY_HANDLER);
        reader.setProperty(Namespaces.SAX_LEXICAL_HANDLER, DUMMY_HANDLER);

        // DIZZZ; workaround Xerces bug. Cached DTDs cause for problems during validation parsing.
        final GrammarPool grammarPool = (GrammarPool) getReaderProperty(reader,
                XMLReaderObjectFactory.APACHE_PROPERTIES_INTERNAL_GRAMMARPOOL);
        if (grammarPool != null) {
            grammarPool.clearDTDs();
        }

        super.returnObject(reader);

    } catch (final Exception e) {
        throw new IllegalStateException("error while returning XMLReader: " + e.getMessage(), e);
    }
}

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From source file:org.h2gis.drivers.osm.OSMParser.java

/**
 * Read the OSM file and create its corresponding tables.
 *
 * @param inputFile//  ww  w  .  ja  v a 2  s .co m
 * @param tableName
 * @param connection
 * @param progress
 * @return
 * @throws SQLException
 */
public boolean read(Connection connection, String tableName, File inputFile, ProgressVisitor progress)
        throws SQLException {
    this.progress = progress.subProcess(100);
    // Initialisation
    final boolean isH2 = JDBCUtilities.isH2DataBase(connection.getMetaData());
    boolean success = false;
    TableLocation requestedTable = TableLocation.parse(tableName, isH2);
    String osmTableName = requestedTable.getTable();
    checkOSMTables(connection, isH2, requestedTable, osmTableName);
    createOSMDatabaseModel(connection, isH2, requestedTable, osmTableName);

    FileInputStream fs = null;
    try {
        fs = new FileInputStream(inputFile);
        this.fc = fs.getChannel();
        this.fileSize = fc.size();
        // Given the file size and an average node file size.
        // Skip how many nodes in order to update progression at a step of 1%
        readFileSizeEachNode = Math.max(1, (this.fileSize / AVERAGE_NODE_SIZE) / 100);
        nodeCountProgress = 0;
        XMLReader parser = XMLReaderFactory.createXMLReader();
        parser.setErrorHandler(this);
        parser.setContentHandler(this);
        if (inputFile.getName().endsWith(".osm")) {
            parser.parse(new InputSource(fs));
        } else if (inputFile.getName().endsWith(".osm.gz")) {
            parser.parse(new InputSource(new GZIPInputStream(fs)));
        } else if (inputFile.getName().endsWith(".osm.bz2")) {
            parser.parse(new InputSource(new BZip2CompressorInputStream(fs)));
        }
        success = true;
    } catch (SAXException ex) {
        throw new SQLException(ex);
    } catch (IOException ex) {
        throw new SQLException("Cannot parse the file " + inputFile.getAbsolutePath(), ex);
    } finally {
        try {
            if (fs != null) {
                fs.close();
            }
        } catch (IOException ex) {
            throw new SQLException("Cannot close the file " + inputFile.getAbsolutePath(), ex);
        }
        // When the reading ends, close() method has to be called
        if (nodePreparedStmt != null) {
            nodePreparedStmt.close();
        }
        if (nodeTagPreparedStmt != null) {
            nodeTagPreparedStmt.close();
        }
        if (wayPreparedStmt != null) {
            wayPreparedStmt.close();
        }
        if (wayTagPreparedStmt != null) {
            wayTagPreparedStmt.close();
        }
        if (wayNodePreparedStmt != null) {
            wayNodePreparedStmt.close();
        }
        if (relationPreparedStmt != null) {
            relationPreparedStmt.close();
        }
        if (relationTagPreparedStmt != null) {
            relationTagPreparedStmt.close();
        }
        if (nodeMemberPreparedStmt != null) {
            nodeMemberPreparedStmt.close();
        }
        if (wayMemberPreparedStmt != null) {
            wayMemberPreparedStmt.close();
        }
        if (relationMemberPreparedStmt != null) {
            relationMemberPreparedStmt.close();
        }
        if (tagPreparedStmt != null) {
            tagPreparedStmt.close();
        }
    }

    return success;
}

---

From source file:org.h2gis.functions.io.osm.OSMParser.java

/**
 * Read the OSM file and create its corresponding tables.
 *
 * @param inputFile//from   w  ww  . j  ava 2s  . c om
 * @param tableName
 * @param connection
 * @param progress
 * @return
 * @throws SQLException
 */
public boolean read(Connection connection, String tableName, File inputFile, ProgressVisitor progress)
        throws SQLException {
    this.progress = progress.subProcess(100);
    // Initialisation
    final boolean isH2 = JDBCUtilities.isH2DataBase(connection.getMetaData());
    boolean success = false;
    TableLocation requestedTable = TableLocation.parse(tableName, isH2);
    String osmTableName = requestedTable.getTable();
    checkOSMTables(connection, isH2, requestedTable, osmTableName);
    createOSMDatabaseModel(connection, isH2, requestedTable, osmTableName);

    FileInputStream fs = null;
    try {
        fs = new FileInputStream(inputFile);
        this.fc = fs.getChannel();
        this.fileSize = fc.size();
        // Given the file size and an average node file size.
        // Skip how many nodes in order to update progression at a step of 1%
        readFileSizeEachNode = Math.max(1, (this.fileSize / AVERAGE_NODE_SIZE) / 100);
        nodeCountProgress = 0;
        XMLReader parser = XMLReaderFactory.createXMLReader();
        parser.setErrorHandler(this);
        parser.setContentHandler(this);
        if (inputFile.getName().endsWith(".osm")) {
            parser.parse(new InputSource(fs));
        } else if (inputFile.getName().endsWith(".osm.gz")) {
            parser.parse(new InputSource(new GZIPInputStream(fs)));
        } else if (inputFile.getName().endsWith(".osm.bz2")) {
            parser.parse(new InputSource(new BZip2CompressorInputStream(fs)));
        } else {
            throw new SQLException("Supported formats are .osm, .osm.gz, .osm.bz2");
        }
        success = true;
    } catch (SAXException ex) {
        throw new SQLException(ex);
    } catch (IOException ex) {
        throw new SQLException("Cannot parse the file " + inputFile.getAbsolutePath(), ex);
    } finally {
        try {
            if (fs != null) {
                fs.close();
            }
        } catch (IOException ex) {
            throw new SQLException("Cannot close the file " + inputFile.getAbsolutePath(), ex);
        }
        // When the reading ends, close() method has to be called
        if (nodePreparedStmt != null) {
            nodePreparedStmt.close();
        }
        if (nodeTagPreparedStmt != null) {
            nodeTagPreparedStmt.close();
        }
        if (wayPreparedStmt != null) {
            wayPreparedStmt.close();
        }
        if (wayTagPreparedStmt != null) {
            wayTagPreparedStmt.close();
        }
        if (wayNodePreparedStmt != null) {
            wayNodePreparedStmt.close();
        }
        if (relationPreparedStmt != null) {
            relationPreparedStmt.close();
        }
        if (relationTagPreparedStmt != null) {
            relationTagPreparedStmt.close();
        }
        if (nodeMemberPreparedStmt != null) {
            nodeMemberPreparedStmt.close();
        }
        if (wayMemberPreparedStmt != null) {
            wayMemberPreparedStmt.close();
        }
        if (relationMemberPreparedStmt != null) {
            relationMemberPreparedStmt.close();
        }
        if (tagPreparedStmt != null) {
            tagPreparedStmt.close();
        }
    }

    return success;
}

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From source file:org.itracker.web.util.ImportExportUtilities.java

/**
 * Takes an XML file matching the ITracker import/export DTD and returns an array
 * of AbstractBean objects.  The array will contain all of the projects, components
 * versions, users, custom fields, and issues contained in the XML.
 *
 * @param xmlReader an xml reader to import
 * @throws ImportExportException thrown if the xml can not be parsed into the appropriate objects
 *///from  w w w  . j  a  v  a  2s  .  com
public static AbstractEntity[] importIssues(Reader xmlReader) throws ImportExportException {
    AbstractEntity[] abstractBeans;

    try {
        logger.debug("Starting XML data import.");

        XMLReader reader = XMLReaderFactory.createXMLReader();
        ImportHandler handler = new ImportHandler();
        reader.setContentHandler(handler);
        reader.setErrorHandler(handler);
        reader.parse(new InputSource(xmlReader));
        abstractBeans = handler.getModels();

        logger.debug("Imported a total of " + abstractBeans.length + " beans.");
    } catch (Exception e) {
        logger.error("Exception.", e);
        throw new ImportExportException(e.getMessage());
    }

    return abstractBeans;
}

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From source file:org.jasig.cas.client.util.XmlUtils.java

/**
 * Retrieve the text for a group of elements. Each text element is an entry
 * in a list.//  w w w.  ja  v  a2  s .  c om
 * <p>This method is currently optimized for the use case of two elements in a list.
 *
 * @param xmlAsString the xml response
 * @param element     the element to look for
 * @return the list of text from the elements.
 */
public static List getTextForElements(final String xmlAsString, final String element) {
    final List elements = new ArrayList(2);
    final XMLReader reader = getXmlReader();

    final DefaultHandler handler = new DefaultHandler() {

        private boolean foundElement = false;

        private StringBuffer buffer = new StringBuffer();

        public void startElement(final String uri, final String localName, final String qName,
                final Attributes attributes) throws SAXException {
            if (localName.equals(element)) {
                this.foundElement = true;
            }
        }

        public void endElement(final String uri, final String localName, final String qName)
                throws SAXException {
            if (localName.equals(element)) {
                this.foundElement = false;
                elements.add(this.buffer.toString());
                this.buffer = new StringBuffer();
            }
        }

        public void characters(char[] ch, int start, int length) throws SAXException {
            if (this.foundElement) {
                this.buffer.append(ch, start, length);
            }
        }
    };

    reader.setContentHandler(handler);
    reader.setErrorHandler(handler);

    try {
        reader.parse(new InputSource(new StringReader(xmlAsString)));
    } catch (final Exception e) {
        LOG.error(e, e);
        return null;
    }

    return elements;
}

---

From source file:org.jasig.cas.client.util.XmlUtils.java

/**
 * Retrieve the text for a specific element (when we know there is only
 * one).//ww  w  .j ava  2  s.  c om
 *
 * @param xmlAsString the xml response
 * @param element     the element to look for
 * @return the text value of the element.
 */
public static String getTextForElement(final String xmlAsString, final String element) {
    final XMLReader reader = getXmlReader();
    final StringBuffer buffer = new StringBuffer();

    final DefaultHandler handler = new DefaultHandler() {

        private boolean foundElement = false;

        public void startElement(final String uri, final String localName, final String qName,
                final Attributes attributes) throws SAXException {
            if (localName.equals(element)) {
                this.foundElement = true;
            }
        }

        public void endElement(final String uri, final String localName, final String qName)
                throws SAXException {
            if (localName.equals(element)) {
                this.foundElement = false;
            }
        }

        public void characters(char[] ch, int start, int length) throws SAXException {
            if (this.foundElement) {
                buffer.append(ch, start, length);
            }
        }
    };

    reader.setContentHandler(handler);
    reader.setErrorHandler(handler);

    try {
        reader.parse(new InputSource(new StringReader(xmlAsString)));
    } catch (final Exception e) {
        LOG.error(e, e);
        return null;
    }

    return buffer.toString();
}

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