Example usage for javax.xml.stream XMLEventWriter flush

Introduction

In this page you can find the example usage for javax.xml.stream XMLEventWriter flush.

Prototype

public void flush() throws XMLStreamException;

Source Link

Document

Writes any cached events to the underlying output mechanism

Usage

From source file:com.msopentech.odatajclient.testservice.utils.XMLUtilities.java

private InputStream addAtomEditLink(final InputStream content, final String title, final String href)
        throws Exception {
    final XMLOutputFactory xof = XMLOutputFactory.newInstance();

    final ByteArrayOutputStream copy = new ByteArrayOutputStream();
    IOUtils.copy(content, copy);/*  w ww  . ja  v  a  2  s . co  m*/

    IOUtils.closeQuietly(content);

    XMLEventReader reader = getEventReader(new ByteArrayInputStream(copy.toByteArray()));

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    XMLEventWriter writer = xof.createXMLEventWriter(bos);

    try {
        // check edit link existence
        final XmlElement editLink = getAtomElement(reader, writer, LINK,
                Collections.<Map.Entry<String, String>>singletonList(
                        new AbstractMap.SimpleEntry<String, String>("rel", "edit")));
        writer.add(editLink.getStart());
        writer.add(editLink.getContentReader());
        writer.add(editLink.getEnd());
        writer.add(reader);
    } catch (Exception e) {
        reader.close();
        reader = getEventReader(new ByteArrayInputStream(copy.toByteArray()));

        bos = new ByteArrayOutputStream();
        writer = xof.createXMLEventWriter(bos);

        final XmlElement entryElement = getAtomElement(reader, writer, "entry");

        writer.add(entryElement.getStart());
        addAtomElement(IOUtils.toInputStream(
                String.format("<link rel=\"edit\" title=\"%s\" href=\"%s\" />", title, href)), writer);
        writer.add(entryElement.getContentReader());
        writer.add(entryElement.getEnd());

        writer.add(reader);

        writer.flush();
        writer.close();
    } finally {
        reader.close();
    }

    return new ByteArrayInputStream(bos.toByteArray());
}

---

From source file:com.msopentech.odatajclient.testservice.utils.XMLUtilities.java

/**
 * {@inheritDoc }/*ww w.  j  ava2  s . c o  m*/
 */
@Override
protected InputStream addLinks(final String entitySetName, final String entitykey, final InputStream is,
        final Set<String> links) throws Exception {

    // -----------------------------------------
    // 0. Build reader and writer
    // -----------------------------------------
    final XMLEventReader reader = getEventReader(is);
    final XMLEventFactory eventFactory = XMLEventFactory.newInstance();

    final ByteArrayOutputStream bos = new ByteArrayOutputStream();
    final XMLOutputFactory xof = XMLOutputFactory.newInstance();
    final XMLEventWriter writer = xof.createXMLEventWriter(bos);
    // -----------------------------------------

    final XmlElement entry = getAtomElement(reader, writer, "entry");
    writer.add(entry.getStart());

    // add for links
    for (String link : links) {
        final Set<Attribute> attributes = new HashSet<Attribute>();
        attributes.add(eventFactory.createAttribute(new QName("title"), link));
        attributes.add(eventFactory.createAttribute(new QName("href"),
                Commons.getLinksURI(version, entitySetName, entitykey, link)));
        attributes.add(eventFactory.createAttribute(new QName("rel"), Constants.ATOM_LINK_REL + link));
        attributes.add(eventFactory.createAttribute(new QName("type"),
                Commons.linkInfo.get(version).isFeed(entitySetName, link) ? Constants.ATOM_LINK_FEED
                        : Constants.ATOM_LINK_ENTRY));

        writer.add(eventFactory.createStartElement(new QName(LINK), attributes.iterator(), null));
        writer.add(eventFactory.createEndElement(new QName(LINK), null));
    }

    writer.add(entry.getContentReader());
    writer.add(entry.getEnd());
    writer.add(reader);
    IOUtils.closeQuietly(is);

    writer.flush();
    writer.close();
    reader.close();

    return new ByteArrayInputStream(bos.toByteArray());
}

---

From source file:com.msopentech.odatajclient.testservice.utils.XMLUtilities.java

public InputStream addAtomContent(final InputStream content, final String title, final String href)
        throws Exception {
    final XMLOutputFactory xof = XMLOutputFactory.newInstance();

    final ByteArrayOutputStream copy = new ByteArrayOutputStream();
    IOUtils.copy(content, copy);/*from w  w w  .j  ava 2 s .c  o  m*/

    IOUtils.closeQuietly(content);

    XMLEventReader reader = getEventReader(new ByteArrayInputStream(copy.toByteArray()));

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    XMLEventWriter writer = xof.createXMLEventWriter(bos);

    try {
        // check edit link existence
        XmlElement contentElement = getAtomElement(reader, writer, "content");
        writer.add(contentElement.getStart());
        writer.add(contentElement.getContentReader());
        writer.add(contentElement.getEnd());
        writer.add(reader);
    } catch (Exception e) {
        reader.close();
        reader = getEventReader(new ByteArrayInputStream(copy.toByteArray()));

        bos = new ByteArrayOutputStream();
        writer = xof.createXMLEventWriter(bos);

        if (isMediaContent(title)) {
            final XmlElement entryElement = getAtomElement(reader, writer, "entry");

            writer.add(entryElement.getStart());
            writer.add(entryElement.getContentReader());

            addAtomElement(
                    IOUtils.toInputStream(String.format("<content type=\"*/*\" src=\"%s/$value\" />", href)),
                    writer);

            writer.add(entryElement.getEnd());
        } else {
            try {
                final XmlElement entryElement = getAtomElement(reader, writer, PROPERTIES);

                addAtomElement(IOUtils.toInputStream("<content type=\"application/xml\">"), writer);

                writer.add(entryElement.getStart());
                writer.add(entryElement.getContentReader());
                writer.add(entryElement.getEnd());

                addAtomElement(IOUtils.toInputStream("</content>"), writer);
            } catch (Exception nf) {
                reader.close();
                reader = getEventReader(new ByteArrayInputStream(copy.toByteArray()));

                bos = new ByteArrayOutputStream();
                writer = xof.createXMLEventWriter(bos);

                final XmlElement entryElement = getAtomElement(reader, writer, "entry");
                writer.add(entryElement.getStart());
                writer.add(entryElement.getContentReader());

                addAtomElement(IOUtils.toInputStream("<content type=\"application/xml\"/>"), writer);

                writer.add(entryElement.getEnd());
            }
        }

        writer.add(reader);

        writer.flush();
        writer.close();
    } finally {
        reader.close();
    }

    return new ByteArrayInputStream(bos.toByteArray());
}

---

From source file:com.msopentech.odatajclient.testservice.utils.XMLUtilities.java

@Override
public InputStream selectEntity(final InputStream entity, final String[] propertyNames) throws Exception {
    final XMLEventReader reader = getEventReader(entity);

    final ByteArrayOutputStream bos = new ByteArrayOutputStream();
    final XMLOutputFactory xof = XMLOutputFactory.newInstance();
    final XMLEventWriter writer = xof.createXMLEventWriter(bos);

    final List<String> found = new ArrayList<String>(Arrays.asList(propertyNames));

    boolean inProperties = false;
    boolean writeCurrent = true;
    Boolean writeNext = null;//from w ww.  jav  a 2  s.  com
    String currentName = null;

    final List<String> fieldToBeSaved = new ArrayList<String>(Arrays.asList(propertyNames));

    while (reader.hasNext()) {
        final XMLEvent event = reader.nextEvent();
        if (event.getEventType() == XMLStreamConstants.START_ELEMENT
                && LINK.equals(event.asStartElement().getName().getLocalPart())
                && !fieldToBeSaved
                        .contains(event.asStartElement().getAttributeByName(new QName("title")).getValue())
                && !"edit".equals(event.asStartElement().getAttributeByName(new QName("rel")).getValue())) {
            writeCurrent = false;
        } else if (event.getEventType() == XMLStreamConstants.END_ELEMENT
                && LINK.equals(event.asEndElement().getName().getLocalPart())) {
            writeNext = true;
        } else if (event.getEventType() == XMLStreamConstants.START_ELEMENT
                && (PROPERTIES).equals(event.asStartElement().getName().getLocalPart())) {
            writeCurrent = true;
            writeNext = false;
            inProperties = true;
        } else if (event.getEventType() == XMLStreamConstants.END_ELEMENT
                && (PROPERTIES).equals(event.asEndElement().getName().getLocalPart())) {
            writeCurrent = true;
        } else if (inProperties) {
            if (event.getEventType() == XMLStreamConstants.START_ELEMENT) {
                final String elementName = event.asStartElement().getName().getLocalPart();

                for (String propertyName : propertyNames) {
                    if ((ATOM_PROPERTY_PREFIX + propertyName.trim()).equals(elementName)) {
                        writeCurrent = true;
                        found.remove(propertyName);
                        currentName = propertyName;
                    }
                }

            } else if (event.getEventType() == XMLStreamConstants.END_ELEMENT
                    && StringUtils.isNotBlank(currentName) && (ATOM_PROPERTY_PREFIX + currentName.trim())
                            .equals(event.asEndElement().getName().getLocalPart())) {
                writeNext = false;
                currentName = null;
            }

        }

        if (writeCurrent) {
            writer.add(event);
        }

        if (writeNext != null) {
            writeCurrent = writeNext;
            writeNext = null;
        }
    }

    writer.flush();
    writer.close();
    reader.close();
    IOUtils.closeQuietly(entity);

    // Do not raise any exception in order to support FC properties as well
    // if (!found.isEmpty()) {
    //     throw new Exception(String.format("Could not find a properties '%s'", found));
    // }

    return new ByteArrayInputStream(bos.toByteArray());
}

---

From source file:eu.delving.sip.xml.SourceConverter.java

public void parse(InputStream inputStream, OutputStream outputStream, Map<String, String> namespaces)
        throws StorageException {
    progressListener.prepareFor(totalRecords);
    //        anonymousRecords = Integer.parseInt(System.getProperty(ANONYMOUS_RECORDS_PROPERTY, "0"));
    Path path = Path.create();
    try {/*w  w w.ja va  2  s  .c om*/
        XMLEventReader in = inputFactory.createXMLEventReader(new StreamSource(inputStream, "UTF-8"));
        XMLEventWriter out = outputFactory.createXMLEventWriter(new OutputStreamWriter(outputStream, "UTF-8"));
        processEvents: while (!finished) {
            XMLEvent event = in.nextEvent();
            switch (event.getEventType()) {
            case XMLEvent.START_DOCUMENT:
                out.add(eventFactory.createStartDocument());
                out.add(eventFactory.createCharacters("\n"));
                List<Namespace> nslist = new ArrayList<Namespace>();
                for (Map.Entry<String, String> entry : namespaces.entrySet()) {
                    if (entry.getKey().isEmpty() || entry.getValue().trim().isEmpty())
                        continue;
                    if (XSI_SCHEMA.equals(entry.getValue()))
                        continue;
                    nslist.add(eventFactory.createNamespace(entry.getKey(), entry.getValue()));
                }
                out.add(eventFactory.createStartElement("", "", ENVELOPE_TAG, null, nslist.iterator()));
                out.add(eventFactory.createCharacters("\n"));
                break;
            case XMLEvent.START_ELEMENT:
                boolean followsStart = start != null;
                start = event.asStartElement();
                if (linesAvailable()) {
                    eventBuffer.add(eventFactory.createCharacters("\n"));
                    eventBuffer.add(eventFactory.createStartElement("", "", TEXT_TAG, null, null));
                    Iterator<String> walk = lines.iterator();
                    while (walk.hasNext()) {
                        eventBuffer.add(eventFactory.createCharacters(walk.next()));
                        if (walk.hasNext()) {
                            eventBuffer.add(eventFactory.createEndElement("", "", TEXT_TAG));
                            eventBuffer.add(eventFactory.createCharacters("\n"));
                            eventBuffer.add(eventFactory.createStartElement("", "", TEXT_TAG, null, null));
                        }
                    }
                    eventBuffer.add(eventFactory.createEndElement("", "", TEXT_TAG));
                    lines.clear();
                }
                path = path.child(Tag.element(start.getName()));
                handleStartElement(path, followsStart);
                progressListener.setProgress(recordCount);
                break;
            case XMLEvent.END_ELEMENT:
                EndElement end = event.asEndElement();
                if (recordEvents) {
                    if (path.equals(recordRootPath)) {
                        if (unique != null) {
                            outputRecord(out);
                            recordCount++;
                        } else {
                            clearEvents();
                        }
                    } else {
                        if (!uniqueElementPath.peek().isAttribute() && path.equals(uniqueElementPath)) {
                            unique = StringUtils.join(lines, "");
                        }
                        boolean addEndTag = true;
                        if (linesAvailable()) {
                            Iterator<String> walk = lines.iterator();
                            while (walk.hasNext()) {
                                eventBuffer.add(eventFactory.createCharacters(walk.next()));
                                if (walk.hasNext()) {
                                    eventBuffer.add(end);
                                    eventBuffer.add(eventFactory.createCharacters("\n"));
                                    handleStartElement(path, false);
                                }
                            }
                        } else {
                            if (eventBuffer.get(eventBuffer.size() - 1).isStartElement()) {
                                eventBuffer.remove(eventBuffer.size() - 1); // remove the start event
                                addEndTag = false;
                            }
                        }
                        lines.clear();
                        if (addEndTag) {
                            eventBuffer.add(end);
                            eventBuffer.add(eventFactory.createCharacters("\n"));
                        }
                    }
                }
                start = null;
                path = path.parent();
                break;
            case XMLEvent.END_DOCUMENT:
                out.add(eventFactory.createEndElement("", "", ENVELOPE_TAG));
                out.add(eventFactory.createCharacters("\n"));
                out.add(eventFactory.createEndDocument());
                out.flush();
                break processEvents;
            case XMLEvent.CHARACTERS:
            case XMLEvent.CDATA:
                if (recordEvents)
                    extractLines(event.asCharacters().getData());
                break;
            }
        }
    } catch (CancelException e) {
        throw new StorageException("Cancelled", e);
    } catch (StorageException e) {
        throw e;
    } catch (Exception e) {
        throw new StorageException("Storage problem", e);
    } finally {
        if (uniqueRepeatCount > 0) {
            progressListener.getFeedback().alert(String.format("Uniqueness violations : " + uniqueRepeatCount));
        }
        IOUtils.closeQuietly(inputStream);
        IOUtils.closeQuietly(outputStream);
    }
}

---

From source file:org.alex73.osm.converters.bel.Convert.java

public static void main(String[] args) throws Exception {
    loadStreetNamesForHouses();//from ww  w .j  a v a  2s. c  o m

    InputStream in = new BZip2CompressorInputStream(
            new BufferedInputStream(new FileInputStream("tmp/belarus-latest.osm.bz2"), BUFFER_SIZE));

    // create xml event reader for input stream
    XMLEventFactory eventFactory = XMLEventFactory.newInstance();
    XMLEvent newLine = eventFactory.createCharacters("\n");
    XMLInputFactory xif = XMLInputFactory.newInstance();
    XMLOutputFactory xof = XMLOutputFactory.newInstance();
    XMLEventReader reader = xif.createXMLEventReader(in);
    XMLEventWriter wrCyr = xof.createXMLEventWriter(
            new BufferedOutputStream(new FileOutputStream("tmp/belarus-bel.osm"), BUFFER_SIZE));
    XMLEventWriter wrInt = xof.createXMLEventWriter(
            new BufferedOutputStream(new FileOutputStream("tmp/belarus-intl.osm"), BUFFER_SIZE));

    // initialize jaxb
    JAXBContext jaxbCtx = JAXBContext.newInstance(Node.class, Way.class, Relation.class);
    Unmarshaller um = jaxbCtx.createUnmarshaller();
    Marshaller m = jaxbCtx.createMarshaller();
    m.setProperty(Marshaller.JAXB_FRAGMENT, true);
    m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);

    XMLEvent e = null;
    while ((e = reader.peek()) != null) {
        boolean processed = false;
        if (e.isStartElement()) {
            StartElement se = (StartElement) e;
            switch (se.getName().getLocalPart()) {
            case "way":
                Way way = um.unmarshal(reader, Way.class).getValue();
                if (way.getId() == 25439425) {
                    System.out.println();
                }
                fixBel(way.getTag(), "name:be", "name");
                String nameBeHouse = houseStreetBe.get(way.getId());
                if (nameBeHouse != null) {
                    setTag(way.getTag(), "addr:street", nameBeHouse);
                }
                m.marshal(way, wrCyr);
                fixInt(way.getTag());
                m.marshal(way, wrInt);
                wrCyr.add(newLine);
                wrInt.add(newLine);
                processed = true;
                break;
            case "node":
                Node node = um.unmarshal(reader, Node.class).getValue();
                fixBel(node.getTag(), "name:be", "name");
                // fixBel(node.getTag(),"addr:street:be","addr:street");
                m.marshal(node, wrCyr);
                fixInt(node.getTag());
                m.marshal(node, wrInt);
                wrCyr.add(newLine);
                wrInt.add(newLine);
                processed = true;
                break;
            case "relation":
                Relation relation = um.unmarshal(reader, Relation.class).getValue();
                fixBel(relation.getTag(), "name:be", "name");
                // fixBel(relation.getTag(),"addr:street:be","addr:street");
                m.marshal(relation, wrCyr);
                fixInt(relation.getTag());
                m.marshal(relation, wrInt);
                wrCyr.add(newLine);
                wrInt.add(newLine);
                processed = true;
                break;
            }
        }
        if (!processed) {
            wrCyr.add(e);
            wrInt.add(e);
        }
        reader.next();
    }

    wrCyr.flush();
    wrCyr.close();
    wrInt.flush();
    wrInt.close();
    System.out.println("UniqueTranslatedTags: " + uniqueTranslatedTags);
}

---

From source file:org.apache.olingo.fit.utils.AbstractXMLUtilities.java

/**
 * {@inheritDoc }//  w  w  w  .  j  a v  a  2s .c  o  m
 */
@Override
protected InputStream addLinks(final String entitySetName, final String entitykey, final InputStream is,
        final Set<String> links) throws Exception {

    // -----------------------------------------
    // 0. Build reader and writer
    // -----------------------------------------
    final XMLEventReader reader = getEventReader(is);
    final XMLEventFactory eventFactory = XMLEventFactory.newInstance();

    final ByteArrayOutputStream bos = new ByteArrayOutputStream();
    final XMLEventWriter writer = getEventWriter(bos);
    // -----------------------------------------
    final Map.Entry<Integer, XmlElement> entry = extractElement(reader, writer,
            Collections.singletonList("entry"), 0, 1, 1);

    writer.add(entry.getValue().getStart());

    // add for links
    for (String link : links) {
        final Set<Attribute> attributes = new HashSet<Attribute>();
        attributes.add(eventFactory.createAttribute(new QName("title"), link));
        attributes.add(eventFactory.createAttribute(new QName("href"),
                Commons.getLinksURI(version, entitySetName, entitykey, link)));
        attributes.add(eventFactory.createAttribute(new QName("rel"), Constants.ATOM_LINK_REL + link));
        attributes.add(eventFactory.createAttribute(new QName("type"),
                Commons.linkInfo.get(version).isFeed(entitySetName, link) ? Constants.ATOM_LINK_FEED
                        : Constants.ATOM_LINK_ENTRY));

        writer.add(eventFactory.createStartElement(new QName(LINK), attributes.iterator(), null));
        writer.add(eventFactory.createEndElement(new QName(LINK), null));
    }

    writer.add(entry.getValue().getContentReader());
    writer.add(entry.getValue().getEnd());
    writer.add(reader);
    IOUtils.closeQuietly(is);

    writer.flush();
    writer.close();
    reader.close();

    return new ByteArrayInputStream(bos.toByteArray());
}

---

From source file:org.apache.olingo.fit.utils.AbstractXMLUtilities.java

@Override
public InputStream addEditLink(final InputStream content, final String title, final String href)
        throws Exception {

    final ByteArrayOutputStream copy = new ByteArrayOutputStream();
    IOUtils.copy(content, copy);/*from  w w  w  .  jav a 2s  .  com*/

    IOUtils.closeQuietly(content);

    XMLEventReader reader = getEventReader(new ByteArrayInputStream(copy.toByteArray()));

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    XMLEventWriter writer = getEventWriter(bos);

    final String editLinkElement = String.format("<link rel=\"edit\" title=\"%s\" href=\"%s\" />", title, href);

    try {
        // check edit link existence
        extractElement(reader, writer, Collections.<String>singletonList(LINK),
                Collections.<Map.Entry<String, String>>singletonList(
                        new AbstractMap.SimpleEntry<String, String>("rel", "edit")),
                false, 0, -1, -1);

        addAtomElement(IOUtils.toInputStream(editLinkElement), writer);
        writer.add(reader);

    } catch (Exception e) {
        reader.close();
        reader = getEventReader(new ByteArrayInputStream(copy.toByteArray()));

        bos = new ByteArrayOutputStream();
        writer = getEventWriter(bos);

        final XmlElement entryElement = extractElement(reader, writer,
                Collections.<String>singletonList("entry"), 0, 1, 1).getValue();

        writer.add(entryElement.getStart());

        addAtomElement(IOUtils.toInputStream(editLinkElement), writer);

        writer.add(entryElement.getContentReader());
        writer.add(entryElement.getEnd());

        writer.add(reader);

        writer.flush();
        writer.close();
    } finally {
        reader.close();
    }

    return new ByteArrayInputStream(bos.toByteArray());
}

---

From source file:org.apache.olingo.fit.utils.AbstractXMLUtilities.java

public InputStream addAtomContent(final InputStream content, final String title, final String href)
        throws Exception {

    final ByteArrayOutputStream copy = new ByteArrayOutputStream();
    IOUtils.copy(content, copy);//from  w w  w .j a va  2 s .  co  m

    IOUtils.closeQuietly(content);

    XMLEventReader reader = getEventReader(new ByteArrayInputStream(copy.toByteArray()));

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    XMLEventWriter writer = getEventWriter(bos);

    try {
        // check edit link existence
        XmlElement contentElement = extractElement(reader, writer, Collections.<String>singletonList("content"),
                0, 2, 2).getValue();
        writer.add(contentElement.getStart());
        writer.add(contentElement.getContentReader());
        writer.add(contentElement.getEnd());
        writer.add(reader);
    } catch (Exception e) {
        reader.close();
        reader = getEventReader(new ByteArrayInputStream(copy.toByteArray()));

        bos = new ByteArrayOutputStream();
        writer = getEventWriter(bos);

        if (isMediaContent(title)) {
            final XmlElement entryElement = extractElement(reader, writer,
                    Collections.<String>singletonList("entry"), 0, 1, 1).getValue();

            writer.add(entryElement.getStart());
            writer.add(entryElement.getContentReader());

            addAtomElement(
                    IOUtils.toInputStream(String.format("<content type=\"*/*\" src=\"%s/$value\" />", href)),
                    writer);

            writer.add(entryElement.getEnd());
        } else {
            try {
                final XmlElement entryElement = extractElement(reader, writer,
                        Collections.<String>singletonList(PROPERTIES), 0, 2, 3).getValue();

                addAtomElement(IOUtils.toInputStream("<content type=\"application/xml\">"), writer);

                writer.add(entryElement.getStart());
                writer.add(entryElement.getContentReader());
                writer.add(entryElement.getEnd());

                addAtomElement(IOUtils.toInputStream("</content>"), writer);
            } catch (Exception nf) {
                reader.close();
                reader = getEventReader(new ByteArrayInputStream(copy.toByteArray()));

                bos = new ByteArrayOutputStream();
                writer = getEventWriter(bos);

                final XmlElement entryElement = extractElement(reader, writer,
                        Collections.<String>singletonList("entry"), 0, 1, 1).getValue();
                writer.add(entryElement.getStart());
                writer.add(entryElement.getContentReader());

                addAtomElement(IOUtils.toInputStream("<content type=\"application/xml\"/>"), writer);

                writer.add(entryElement.getEnd());
            }
        }

        writer.add(reader);

        writer.flush();
        writer.close();
    } finally {
        reader.close();
    }

    return new ByteArrayInputStream(bos.toByteArray());
}

---

From source file:org.apache.olingo.fit.utils.AbstractXMLUtilities.java

public InputStream addAtomInlinecount(final InputStream feed, final int count, final Accept accept)
        throws Exception {
    final XMLEventReader reader = getEventReader(feed);

    final ByteArrayOutputStream bos = new ByteArrayOutputStream();
    final XMLEventWriter writer = getEventWriter(bos);

    try {/*from  www .  j  a  v  a  2  s  .  c om*/

        final XmlElement feedElement = extractElement(reader, writer, Collections.<String>singletonList("feed"),
                0, 1, 1).getValue();

        writer.add(feedElement.getStart());
        addAtomElement(IOUtils.toInputStream(String.format("<m:count>%d</m:count>", count)), writer);
        writer.add(feedElement.getContentReader());
        writer.add(feedElement.getEnd());

        while (reader.hasNext()) {
            writer.add(reader.nextEvent());
        }

    } finally {
        writer.flush();
        writer.close();
        reader.close();
        IOUtils.closeQuietly(feed);
    }

    return new ByteArrayInputStream(bos.toByteArray());
}

---

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