Example usage for org.xml.sax ContentHandler endElement

List of usage examples for org.xml.sax ContentHandler endElement

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Introduction

In this page you can find the example usage for org.xml.sax ContentHandler endElement.

Prototype

public void endElement(String uri, String localName, String qName) throws SAXException;

Source Link

Document

Receive notification of the end of an element.

Usage

From source file:uk.ac.cam.caret.sakai.rwiki.component.service.impl.XSLTEntityHandler.java

/**
 * {@inheritDoc}//from w  w  w .j a va  2 s .  c o  m
 */
public void outputContent(final Entity entity, final Entity sideBar, final HttpServletRequest request,
        final HttpServletResponse res) {
    if (!isAvailable())
        return;
    if (!(entity instanceof RWikiEntity))
        return;

    try {
        String skin = ServerConfigurationService.getString("skin.default"); //$NON-NLS-1$
        String skinRepo = ServerConfigurationService.getString("skin.repo"); //$NON-NLS-1$
        request.setAttribute("sakai.skin.repo", skinRepo); //$NON-NLS-1$
        request.setAttribute("sakai.skin", skin); //$NON-NLS-1$

        HttpSession s = request.getSession();
        PageVisits pageVisits = (PageVisits) s
                .getAttribute(XSLTEntityHandler.class.getName() + this.getMinorType() + "_visits");

        boolean withBreadcrumbs = !"0".equals(request.getParameter(breadCrumbParameter));
        if (pageVisits == null) {
            pageVisits = new PageVisits();
            s.setAttribute(XSLTEntityHandler.class.getName() + this.getMinorType() + "_visits", pageVisits);
        }
        RWikiEntity rwe = (RWikiEntity) entity;
        if (!rwe.isContainer()) {
            RWikiObject rwo = rwe.getRWikiObject();
            pageVisits.addPage(rwo.getName());
        }

        setCurrentRequest(request);

        if (responseHeaders != null) {
            for (Iterator i = responseHeaders.keySet().iterator(); i.hasNext();) {
                String name = (String) i.next();
                String value = (String) responseHeaders.get(name);
                res.setHeader(name, value);

            }

        }

        OutputStream out = res.getOutputStream();

        ContentHandler opch = getOutputHandler(out);
        ContentHandler ch = null;
        if (false) {
            ch = new DebugContentHandler(opch);
        } else {
            ch = opch;
        }

        Attributes dummyAttributes = new AttributesImpl();

        ch.startDocument();
        ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ENTITYSERVICE, SchemaNames.EL_NSENTITYSERVICE,
                dummyAttributes);

        AttributesImpl propA = new AttributesImpl();
        propA.addAttribute("", SchemaNames.ATTR_REQUEST_PATH_INFO, //$NON-NLS-1$
                SchemaNames.ATTR_REQUEST_PATH_INFO, "string", request //$NON-NLS-1$
                        .getPathInfo());
        propA.addAttribute("", SchemaNames.ATTR_REQUEST_USER, //$NON-NLS-1$
                SchemaNames.ATTR_REQUEST_USER, "string", request //$NON-NLS-1$
                        .getRemoteUser());
        propA.addAttribute("", SchemaNames.ATTR_REQUEST_PROTOCOL, //$NON-NLS-1$
                SchemaNames.ATTR_REQUEST_PROTOCOL, "string", request //$NON-NLS-1$
                        .getProtocol());
        propA.addAttribute("", SchemaNames.ATTR_REQUEST_SERVER_NAME, //$NON-NLS-1$
                SchemaNames.ATTR_REQUEST_SERVER_NAME, "string", request //$NON-NLS-1$
                        .getServerName());
        propA.addAttribute("", SchemaNames.ATTR_REQUEST_SERVER_PORT, //$NON-NLS-1$
                SchemaNames.ATTR_REQUEST_SERVER_PORT, "string", String //$NON-NLS-1$
                        .valueOf(request.getServerPort()));
        propA.addAttribute("", SchemaNames.ATTR_REQUEST_REQUEST_URL, //$NON-NLS-1$
                SchemaNames.ATTR_REQUEST_REQUEST_URL, "string", String //$NON-NLS-1$
                        .valueOf(request.getRequestURL()));

        ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_PROPERTIES,
                SchemaNames.EL_NSREQUEST_PROPERTIES, propA);
        addRequestAttributes(ch, request);
        addRequestParameters(ch, request);

        ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_PROPERTIES,
                SchemaNames.EL_NSREQUEST_PROPERTIES);

        if (withBreadcrumbs) {
            ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_PAGEVISITS, SchemaNames.EL_NSPAGEVISITS,
                    dummyAttributes);

            List<String[]> pv = pageVisits.getPageNames(this.getMinorType());

            for (Iterator<String[]> i = pv.iterator(); i.hasNext();) {
                String[] visit = i.next();
                propA = new AttributesImpl();
                propA.addAttribute("", SchemaNames.ATTR_URL, SchemaNames.ATTR_URL, "string", visit[0]);
                addElement(ch, SchemaNames.NS_CONTAINER, SchemaNames.EL_PAGEVISIT, SchemaNames.EL_NSPAGEVISIT,
                        propA, visit[1]);
            }
            ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_PAGEVISITS, SchemaNames.EL_NSPAGEVISITS);
        }

        ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ENTITY, SchemaNames.EL_NSENTITY,
                dummyAttributes);
        ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_XMLPROPERTIES, SchemaNames.EL_NSXMLPROPERTIES,
                dummyAttributes);
        ResourceProperties rp = entity.getProperties();

        for (Iterator i = rp.getPropertyNames(); i.hasNext();) {
            Object key = i.next();
            String name = String.valueOf(key);
            String value = String.valueOf(rp.getProperty(name));
            propA = new AttributesImpl();
            propA.addAttribute("", SchemaNames.ATTR_NAME, //$NON-NLS-1$
                    SchemaNames.ATTR_NAME, "string", name); //$NON-NLS-1$
            addElement(ch, SchemaNames.NS_CONTAINER, SchemaNames.EL_XMLPROPERTY, SchemaNames.EL_NSXMLPROPERTY,
                    propA, value);
        }
        propA = new AttributesImpl();
        propA.addAttribute("", SchemaNames.ATTR_NAME, //$NON-NLS-1$
                SchemaNames.ATTR_NAME, "string", "_handler"); //$NON-NLS-1$ //$NON-NLS-2$
        addElement(ch, SchemaNames.NS_CONTAINER, SchemaNames.EL_XMLPROPERTY, SchemaNames.EL_NSXMLPROPERTY,
                propA, " XSLTEntity Handler"); //$NON-NLS-1$

        if (!rwe.isContainer()) {
            RWikiObject rwo = rwe.getRWikiObject();
            propA = new AttributesImpl();
            propA.addAttribute("", SchemaNames.ATTR_NAME, //$NON-NLS-1$
                    SchemaNames.ATTR_NAME, "string", "_title"); //$NON-NLS-1$ //$NON-NLS-2$
            addElement(ch, SchemaNames.NS_CONTAINER, SchemaNames.EL_XMLPROPERTY, SchemaNames.EL_NSXMLPROPERTY,
                    propA, NameHelper.localizeName(rwo.getName(), rwo.getRealm()));

        } else {
            propA = new AttributesImpl();
            propA.addAttribute("", SchemaNames.ATTR_NAME, //$NON-NLS-1$
                    SchemaNames.ATTR_NAME, "string", "_title"); //$NON-NLS-1$ //$NON-NLS-2$
            addElement(ch, SchemaNames.NS_CONTAINER, SchemaNames.EL_XMLPROPERTY, SchemaNames.EL_NSXMLPROPERTY,
                    propA, entity.getReference());

        }
        ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_XMLPROPERTIES, SchemaNames.EL_NSXMLPROPERTIES);

        /* http://jira.sakaiproject.org/browse/SAK-13281
         * escapeXML is controlled via config settings
         */

        if (!rwe.isContainer()) {
            RWikiObject rwo = rwe.getRWikiObject();
            ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_RENDEREDCONTENT,
                    SchemaNames.EL_NSRENDEREDCONTENT, dummyAttributes);

            renderToXML(rwo, ch, withBreadcrumbs, this.escaped);
            ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_RENDEREDCONTENT,
                    SchemaNames.EL_NSRENDEREDCONTENT);
        }
        ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ENTITY, SchemaNames.EL_NSENTITY);

        if (sideBar != null && sideBar instanceof RWikiEntity) {

            RWikiEntity sbrwe = (RWikiEntity) sideBar;
            RWikiObject sbrwo = sbrwe.getRWikiObject();
            ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_SIDEBAR, SchemaNames.EL_NSSIDEBAR,
                    dummyAttributes);

            ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_XMLPROPERTIES,
                    SchemaNames.EL_NSXMLPROPERTIES, dummyAttributes);
            propA = new AttributesImpl();
            propA.addAttribute("", SchemaNames.ATTR_NAME, //$NON-NLS-1$
                    SchemaNames.ATTR_NAME, "string", "_title"); //$NON-NLS-1$ //$NON-NLS-2$
            addElement(ch, SchemaNames.NS_CONTAINER, SchemaNames.EL_XMLPROPERTY, SchemaNames.EL_NSXMLPROPERTY,
                    propA, NameHelper.localizeName(sbrwo.getName(), sbrwo.getRealm()));
            ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_XMLPROPERTIES,
                    SchemaNames.EL_NSXMLPROPERTIES);

            ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_RENDEREDCONTENT,
                    SchemaNames.EL_NSRENDEREDCONTENT, dummyAttributes);
            renderToXML(sbrwo, ch, withBreadcrumbs, this.escaped);
            ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_RENDEREDCONTENT,
                    SchemaNames.EL_NSRENDEREDCONTENT);

            ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_SIDEBAR, SchemaNames.EL_NSSIDEBAR);

        }

        ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ENTITYSERVICE, SchemaNames.EL_NSENTITYSERVICE);

        ch.endDocument();

    } catch (Throwable ex) {
        log.info("Failed to serialize " + ex.getMessage()); //$NON-NLS-1$
        ex.printStackTrace();
        throw new RuntimeException(Messages.getString("XSLTEntityHandler.68") //$NON-NLS-1$
                + ex.getLocalizedMessage(), ex);
    } finally {
        setCurrentRequest(null);
    }
}

From source file:uk.ac.cam.caret.sakai.rwiki.component.service.impl.XSLTEntityHandler.java

/**
 * Adds an element to the content handler.
 * //  w w  w  .jav  a  2s  . c o  m
 * @param ch
 *        the content handler
 * @param ns
 *        the name space of the element
 * @param lname
 *        the local name
 * @param qname
 *        the qname
 * @param attr
 *        the attribute list
 * @param content
 *        content of the element
 * @throws SAXException
 *         if the underlying sax chain has a problem
 */
public void addElement(final ContentHandler ch, final String ns, final String lname, final String qname,
        final Attributes attr, final Object content) throws SAXException {

    ch.startElement(ns, lname, qname, attr);
    try {
        if (content != null) {
            char[] c = String.valueOf(content).toCharArray();
            ch.characters(c, 0, c.length);
        }
    } finally {
        ch.endElement(ns, lname, qname);
    }
}

From source file:uk.ac.cam.caret.sakai.rwiki.component.service.impl.XSLTEntityHandler.java

/**
 * Serialises the rendered content of the RWiki Object to SAX
 * //from w  w w .jav  a 2  s. c  o m
 * @param rwo
 * @param ch
 * @param withBreadCrumb 
 */
public void renderToXML(RWikiObject rwo, final ContentHandler ch, boolean withBreadCrumb, boolean escapeXML)
        throws SAXException, IOException {

    String renderedPage;
    try {
        renderedPage = render(rwo, withBreadCrumb);
    } catch (Exception e) {
        renderedPage = Messages.getString("XSLTEntityHandler.32") + rwo.getName() //$NON-NLS-1$
                + Messages.getString("XSLTEntityHandler.33") + e.getClass() //$NON-NLS-1$
                + Messages.getString("XSLTEntityHandler.34") + e.getMessage(); //$NON-NLS-1$
        log.info(renderedPage, e);
    }
    String contentDigest = DigestHtml.digest(renderedPage);
    if (contentDigest.length() > 500) {
        contentDigest = contentDigest.substring(0, 500);
    }
    if (renderedPage == null || renderedPage.trim().length() == 0) {
        renderedPage = Messages.getString("XSLTEntityHandler.35"); //$NON-NLS-1$
    }
    if (contentDigest == null || contentDigest.trim().length() == 0) {
        contentDigest = Messages.getString("XSLTEntityHandler.36"); //$NON-NLS-1$
    }

    String cdataEscapedRendered = renderedPage.replaceAll("]]>", "]]>]]&gt;<![CDATA["); //$NON-NLS-1$ //$NON-NLS-2$
    String cdataContentDigest = contentDigest.replaceAll("]]>", "]]>]]&gt;<![CDATA["); //$NON-NLS-1$ //$NON-NLS-2$

    /* http://jira.sakaiproject.org/browse/SAK-13281
     * ensure all page content is escaped or double escaped before it goes into the parser,
     * if this is not done then the parser will unescape html entities during processing
     */
    renderedPage = "<content><rendered>" //$NON-NLS-1$
            + (escapeXML ? StringEscapeUtils.escapeXml(renderedPage) : renderedPage) + "</rendered><rendered-cdata><![CDATA[" + cdataEscapedRendered //$NON-NLS-1$
            + "]]></rendered-cdata><contentdigest><![CDATA[" + cdataContentDigest //$NON-NLS-1$
            + "]]></contentdigest></content>"; //$NON-NLS-1$

    try {
        parseToSAX(renderedPage, ch);
    } catch (SAXException ex) {
        SimpleCoverage.cover("Failed to parse renderedPage from " + rwo.getName()); //$NON-NLS-1$
        Attributes dummyAttributes = new AttributesImpl();
        ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ERROR, SchemaNames.EL_NSERROR,
                dummyAttributes);
        ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ERRORDESC, SchemaNames.EL_NSERRORDESC,
                dummyAttributes);
        String s = Messages.getString("XSLTEntityHandler.46") //$NON-NLS-1$
                + ex.getMessage();
        ch.characters(s.toCharArray(), 0, s.length());
        ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ERRORDESC, SchemaNames.EL_NSERRORDESC);
        ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_RAWCONTENT, SchemaNames.EL_NSRAWCONTENT,
                dummyAttributes);
        ch.characters(renderedPage.toCharArray(), 0, renderedPage.length());
        ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_RAWCONTENT, SchemaNames.EL_NSRAWCONTENT);
        ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ERROR, SchemaNames.EL_NSERROR);

    }

    // SimpleCoverage.cover("Failed to parse ::\n" + renderedPage
    // + "\n:: from ::\n" + rwo.getContent());
    // Attributes dummyAttributes = new AttributesImpl();
    // ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ERROR,
    // SchemaNames.EL_NSERROR, dummyAttributes);
    // ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ERRORDESC,
    // SchemaNames.EL_NSERRORDESC, dummyAttributes);
    // String s = "The Rendered Content did not parse correctly "
    // + ex.getMessage();
    // ch.characters(s.toCharArray(), 0, s.length());
    // ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ERRORDESC,
    // SchemaNames.EL_NSERRORDESC);
    // ch.startElement(SchemaNames.NS_CONTAINER,
    // SchemaNames.EL_RAWCONTENT, SchemaNames.EL_NSRAWCONTENT,
    // dummyAttributes);
    // ch.characters(renderedPage.toCharArray(), 0, renderedPage.length());
    // ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_RAWCONTENT,
    // SchemaNames.EL_NSRAWCONTENT);
    // ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_ERROR,
    // SchemaNames.EL_NSERROR);

}

From source file:uk.ac.cam.caret.sakai.rwiki.component.service.impl.XSLTEntityHandler.java

public void parseToSAX(final String toRender, final ContentHandler ch) throws IOException, SAXException {
    /**/*from  w ww.  j  a  va2s  .  c  o  m*/
     * create a proxy for the stream, filtering out the start element and
     * end element events
     */
    ContentHandler proxy = new ContentHandler() {
        public void setDocumentLocator(Locator arg0) {
            ch.setDocumentLocator(arg0);
        }

        public void startDocument() throws SAXException {
            // ignore
        }

        public void endDocument() throws SAXException {
            // ignore
        }

        public void startPrefixMapping(String arg0, String arg1) throws SAXException {
            ch.startPrefixMapping(arg0, arg1);
        }

        public void endPrefixMapping(String arg0) throws SAXException {
            ch.endPrefixMapping(arg0);
        }

        public void startElement(String arg0, String arg1, String arg2, Attributes arg3) throws SAXException {
            ch.startElement(arg0, arg1, arg2, arg3);
        }

        public void endElement(String arg0, String arg1, String arg2) throws SAXException {
            ch.endElement(arg0, arg1, arg2);
        }

        public void characters(char[] arg0, int arg1, int arg2) throws SAXException {
            ch.characters(arg0, arg1, arg2);
        }

        public void ignorableWhitespace(char[] arg0, int arg1, int arg2) throws SAXException {
            ch.ignorableWhitespace(arg0, arg1, arg2);
        }

        public void processingInstruction(String arg0, String arg1) throws SAXException {
            ch.processingInstruction(arg0, arg1);
        }

        public void skippedEntity(String arg0) throws SAXException {
            ch.skippedEntity(arg0);
        }

    };
    InputSource ins = new InputSource(new StringReader(toRender));
    XMLReader xmlReader;
    try {
        SAXParser saxParser = saxParserFactory.newSAXParser();

        xmlReader = saxParser.getXMLReader();
    }

    catch (Exception e) {
        log.error("SAXException when creating XMLReader", e); //$NON-NLS-1$
        // rethrow!!
        throw new SAXException(e);
    }
    xmlReader.setContentHandler(proxy);
    xmlReader.parse(ins);
}

From source file:uk.ac.cam.caret.sakai.rwiki.component.service.impl.XSLTEntityHandler.java

public void addRequestAttributes(ContentHandler ch, HttpServletRequest request) throws Exception {
    if (!isAvailable())
        return;//from   w ww  .j av  a 2  s.c  om

    // add the attributes
    AttributesImpl dummyAttributes = new AttributesImpl();
    ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_ATTRIBUTES,
            SchemaNames.EL_NSREQUEST_ATTRIBUTES, dummyAttributes);
    for (Enumeration e = request.getAttributeNames(); e.hasMoreElements();) {
        String name = (String) e.nextElement();
        Object attr = request.getAttribute(name);
        AttributesImpl propA = new AttributesImpl();
        propA.addAttribute("", SchemaNames.ATTR_NAME, //$NON-NLS-1$
                SchemaNames.ATTR_NAME, "string", name); //$NON-NLS-1$
        if (attr instanceof Object[]) {
            Object[] oattr = (Object[]) attr;
            ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_ATTRIBUTE,
                    SchemaNames.EL_NSREQUEST_ATTRIBUTE, propA);
            for (int i = 0; i < oattr.length; i++) {
                addElement(ch, SchemaNames.NS_CONTAINER, SchemaNames.EL_VALUE, SchemaNames.EL_NSVALUE,
                        dummyAttributes, oattr[i]);
            }
            ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_ATTRIBUTE,
                    SchemaNames.EL_NSREQUEST_ATTRIBUTE);
        } else {
            ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_ATTRIBUTE,
                    SchemaNames.EL_NSREQUEST_ATTRIBUTE, propA);
            addElement(ch, SchemaNames.NS_CONTAINER, SchemaNames.EL_VALUE, SchemaNames.EL_NSVALUE,
                    dummyAttributes, attr);
            ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_ATTRIBUTE,
                    SchemaNames.EL_NSREQUEST_ATTRIBUTE);
        }
    }

    ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_ATTRIBUTES,
            SchemaNames.EL_NSREQUEST_ATTRIBUTES);
}

From source file:uk.ac.cam.caret.sakai.rwiki.component.service.impl.XSLTEntityHandler.java

public void addRequestParameters(ContentHandler ch, HttpServletRequest request) throws Exception {
    if (!isAvailable())
        return;//from w  w w  .  j a v  a  2 s . c  o m

    AttributesImpl dummyAttributes = new AttributesImpl();

    // add the request parameters
    ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_PARAMS, SchemaNames.EL_NSREQUEST_PARAMS,
            dummyAttributes);
    for (Enumeration e = request.getParameterNames(); e.hasMoreElements();) {
        String name = (String) e.nextElement();
        String[] attr = request.getParameterValues(name);
        AttributesImpl propA = new AttributesImpl();
        propA.addAttribute("", SchemaNames.ATTR_NAME, //$NON-NLS-1$
                SchemaNames.ATTR_NAME, "string", name); //$NON-NLS-1$
        ch.startElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_PARAM, SchemaNames.EL_NSREQUEST_PARAM,
                propA);
        for (int i = 0; i < attr.length; i++) {
            addElement(ch, SchemaNames.NS_CONTAINER, SchemaNames.EL_VALUE, SchemaNames.EL_NSVALUE,
                    dummyAttributes, attr[i]);
        }
        ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_PARAM, SchemaNames.EL_NSREQUEST_PARAM);
    }

    ch.endElement(SchemaNames.NS_CONTAINER, SchemaNames.EL_REQUEST_PARAMS, SchemaNames.EL_REQUEST_PARAMS);
}

From source file:uk.ac.ebi.arrayexpress.utils.saxon.FlatFileXMLReader.java

public void parse(InputSource input) throws IOException, SAXException {
    int headerRows = getIntOptionValue(OPTION_HEADER_ROWS, 0);
    int page = getIntOptionValue(OPTION_PAGE, 0);
    int pageSize = getIntOptionValue(OPTION_PAGE_SIZE, -1);
    Integer sortBy = getIntOptionValue(OPTION_SORT_BY, null);
    String sortOrder = getStringOptionValue(OPTION_SORT_ORDER, "a");

    ContentHandler ch = getContentHandler();
    if (null == ch) {
        return;//from   w  ww  .j  a v a  2  s.co m
    }

    Reader inStream;
    if (input.getCharacterStream() != null) {
        inStream = input.getCharacterStream();
    } else if (input.getByteStream() != null) {
        inStream = new InputStreamReader(input.getByteStream());
    } else if (input.getSystemId() != null) {
        URL url = new URL(input.getSystemId());
        inStream = new InputStreamReader(url.openStream());
    } else {
        throw new SAXException("Invalid InputSource object");
    }

    CSVReader ffReader = new CSVReader(new BufferedReader(inStream), this.columnDelimiter,
            this.columnQuoteChar);

    List<String[]> ff = ffReader.readAll();
    int cols = ff.size() > 0 ? ff.get(0).length : 0;

    // verify that sort by column is with in range of columns
    // if not then sort will not be performed
    // else - switch from 1-based to 0-based index
    if (null != sortBy) {
        if (sortBy < 1 || sortBy > cols) {
            sortBy = null;
        } else {
            sortBy = sortBy - 1;
        }
    }

    // 1. removes all dodgy rows (that have less columns than the first one)
    // 2. determines if column to be sorted is numeric
    ColDataType sortColDataType = ColDataType.INTEGER;
    int colTypeSkipRows = headerRows;
    for (Iterator<String[]> iterator = ff.iterator(); iterator.hasNext();) {
        String[] row = iterator.next();
        if (row.length != cols || isRowBlank(row)) {
            iterator.remove();
        } else {
            if (null != sortBy && 0 == colTypeSkipRows && ColDataType.STRING != sortColDataType) {
                ColDataType dataType = getColDataType(row[sortBy]);

                // downgrade from int to decimal or string
                if (ColDataType.INTEGER == sortColDataType && ColDataType.INTEGER != dataType) {
                    sortColDataType = dataType;
                }
                // downgrade from decimal to string only
                if (ColDataType.DECIMAL == sortColDataType && ColDataType.STRING == dataType) {
                    sortColDataType = dataType;
                }
            }
            if (colTypeSkipRows > 0) {
                colTypeSkipRows--;
            }
        }
    }

    int rows = ff.size() > 0 ? ff.size() - headerRows : 0;

    if (-1 == pageSize) {
        page = 1;
        pageSize = rows;
    }

    ch.startDocument();

    AttributesImpl tableAttrs = new AttributesImpl();
    tableAttrs.addAttribute(EMPTY_NAMESPACE, "rows", "rows", CDATA_TYPE, String.valueOf(rows));
    ch.startElement(EMPTY_NAMESPACE, "table", "table", tableAttrs);

    for (Iterator<String[]> iterator = ff.iterator(); iterator.hasNext() && headerRows > 0; headerRows--) {
        String[] row = iterator.next();
        outputRow(ch, true, null, row);
        iterator.remove();
    }

    if (null != sortBy) {
        Collections.sort(ff, new SortColumnComparator(sortBy, sortOrder, sortColDataType));
    }

    int rowSeq = 1;
    for (String[] row : ff) {
        if (rowSeq > (pageSize * (page - 1)) && rowSeq <= (pageSize * page)) {
            outputRow(ch, false, String.valueOf(rowSeq), row);
        }
        ++rowSeq;
    }

    ch.endElement(EMPTY_NAMESPACE, "table", "table");
    ch.endDocument();
}

From source file:uk.ac.ebi.arrayexpress.utils.saxon.FlatFileXMLReader.java

private void outputRow(ContentHandler ch, boolean isHeader, String seqValue, String[] rowData)
        throws SAXException {
    String rowElement = isHeader ? "header" : "row";

    AttributesImpl rowAttrs = new AttributesImpl();
    if (null != seqValue) {
        rowAttrs.addAttribute(EMPTY_NAMESPACE, "seq", "seq", CDATA_TYPE, seqValue);
    }//from   www .ja v a  2  s.  co  m
    rowAttrs.addAttribute(EMPTY_NAMESPACE, "cols", "cols", CDATA_TYPE, String.valueOf(rowData.length));
    ch.startElement(EMPTY_NAMESPACE, rowElement, rowElement, rowAttrs);

    for (String col : rowData) {
        if (isHeader) {
            col = StringUtils.trimToEmpty(col);
        }
        ch.startElement(EMPTY_NAMESPACE, "col", "col", EMPTY_ATTR);
        ch.characters(col.toCharArray(), 0, col.length());
        ch.endElement(EMPTY_NAMESPACE, "col", "col");
    }
    ch.endElement(EMPTY_NAMESPACE, rowElement, rowElement);
}