Example usage for java.io StringWriter StringWriter

Introduction

In this page you can find the example usage for java.io StringWriter StringWriter.

Prototype

public StringWriter()

Source Link

Document

Create a new string writer using the default initial string-buffer size.

Usage

From source file:Main.java

public static String getXML(NodeList childNodes) {
    try {// w  w  w .j  a v  a  2s .  com
        StringBuilder builder = new StringBuilder();
        Transformer t = TransformerFactory.newInstance().newTransformer();
        t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
        for (int i = 0; i < childNodes.getLength(); i++) {
            StringWriter sw = new StringWriter();
            t.transform(new DOMSource(childNodes.item(i)), new StreamResult(sw));
            builder.append(sw.toString());
        }
        return builder.toString();
    } catch (Exception ex) {
        return "";
    }
}

From source file:Main.java

/**
 * Formats an unformatted xml and returns a pretty format.
 * //from  w w  w  .  j  av  a2  s.co m
 * @param unformattedXml
 *            the unformatted xml string
 * @return the xml in a pretty format
 * @throws TransformerException
 */
public static String formatXml(String unformattedXml) throws TransformerException {
    Document doc = parseXml(unformattedXml);

    Transformer transformer = transformerFactory.newTransformer();
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");

    // initialize StreamResult with File object to save to file
    StreamResult result = new StreamResult(new StringWriter());
    DOMSource source = new DOMSource(doc);
    transformer.transform(source, result);
    String xmlString = result.getWriter().toString();
    return xmlString;
}

From source file:Main.java

/**
 * @param doc/*from w w  w .  j  av  a2  s  . c  o  m*/
 * @return
 * @throws RuntimeException
 */
public static String prettyPrint(Document doc) throws RuntimeException {
    TransformerFactory tfactory = TransformerFactory.newInstance();
    Transformer serializer;
    StringWriter writer = new StringWriter();
    try {
        serializer = tfactory.newTransformer();

        // Setup indenting to "pretty print"
        serializer.setOutputProperty(OutputKeys.INDENT, "yes"); //$NON-NLS-1$
        serializer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2"); //$NON-NLS-1$ //$NON-NLS-2$

        serializer.transform(new DOMSource(doc), new StreamResult(writer));
        return writer.toString();
    } catch (TransformerException e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

/**
 * Object to XML// ww w . java  2s. c om
 * 
 * @param object
 * @return
 */
public static String convertToXML(Object object) {
    try {
        System.out.println(mMap.containsKey(object.getClass()) + "---mmap-----");
        if (!mMap.containsKey(object.getClass())) {
            JAXBContext jaxbContext = JAXBContext.newInstance(object.getClass());
            Marshaller marshaller = jaxbContext.createMarshaller();
            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
            // marshaller.setProperty(CharacterEscapeHandler.class.getName(),
            // new CharacterEscapeHandler() {
            // public void escape(char[] ac, int i, int j, boolean
            // flag,Writer writer) throws IOException {
            // writer.write( ac, i, j ); }
            // });
            mMap.put(object.getClass(), marshaller);
        }
        System.out.println("----mmap--" + mMap.toString());
        StringWriter stringWriter = new StringWriter();
        mMap.get(object.getClass()).marshal(object, stringWriter);
        return stringWriter.getBuffer().toString();
    } catch (JAXBException e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

/**
 * Converts a DOM Tree to a String./*from  www. j  ava 2  s  .c om*/
 *
 * @param xml The DOM document to convert.
 *
 * @return A string containing the XML if successful, null otherwise.
 */
public static String xmlToString(Document xml) {
    try {
        TransformerFactory f = TransformerFactory.newInstance();
        StringWriter writer = new StringWriter();
        Transformer t = f.newTransformer();
        DOMSource src = new DOMSource(xml);
        StreamResult result = new StreamResult(writer);
        t.transform(src, result);
        return writer.toString();
    } catch (TransformerException e) {
        return null;
    }
}

From source file:net.fizzl.redditengine.data.UserListing.java

public static UserListing fromInputStream(InputStream in) throws IOException {
    StringWriter writer = new StringWriter();
    IOUtils.copy(in, writer, "UTF-8");
    return fromInputStream(writer.toString());
}

From source file:org.mstc.zmq.json.Encoder.java

public static String encode(Object o) throws IOException {
    StringWriter writer = new StringWriter();
    ObjectMapper mapper = new ObjectMapper();
    mapper.enable(DeserializationFeature.USE_BIG_DECIMAL_FOR_FLOATS);
    JsonFactory factory = mapper.getFactory();
    try (JsonGenerator g = factory.createGenerator(writer)) {
        g.writeStartObject();/* w  w w.j  a  va2s  .  co  m*/
        for (Field f : o.getClass().getDeclaredFields()) {
            try {
                f.setAccessible(true);
                Object value = f.get(o);
                if (value != null) {
                    if (f.getType().isAssignableFrom(List.class)) {
                        String items = mapper.writeValueAsString(value);
                        g.writeStringField(f.getName(), items);
                    } else if (f.getType().isArray()) {
                        if (f.getType().getComponentType().isAssignableFrom(byte.class)) {
                            g.writeBinaryField(f.getName(), (byte[]) value);
                        } else {
                            int length = Array.getLength(value);
                            g.writeFieldName(f.getName());
                            g.writeStartArray();
                            for (int i = 0; i < length; i++) {
                                Object av = Array.get(value, i);
                                if (av instanceof Double) {
                                    g.writeNumber(new BigDecimal((Double) av).toPlainString());
                                } else if (av instanceof Float) {
                                    g.writeNumber(new BigDecimal((Float) av).toPlainString());
                                } else if (av instanceof Integer) {
                                    g.writeNumber(new BigDecimal((Integer) av).toPlainString());
                                } else {
                                    g.writeObject(av);
                                }
                                /*if (av instanceof Double)
                                g.writeNumber(new BigDecimal((Double) av));
                                else if (av instanceof Float)
                                g.writeNumber(new BigDecimal((Float) av));
                                else if (av instanceof Integer)
                                g.writeNumber((Integer) av);*/
                            }
                            g.writeEndArray();
                        }
                    } else {
                        g.writeObjectField(f.getName(), value);
                    }
                }

            } catch (IllegalAccessException e) {
                logger.warn("Could not get field: {}", f.getName(), e);
            }
        }
        g.writeEndObject();
    }
    if (logger.isDebugEnabled())
        logger.debug(writer.toString());
    return writer.toString();
}

From source file:Main.java

/**
 * Pretty print an XML. Use with caution as this drains the source if it is
 * a StreamSource.//from w ww  . j a v  a  2 s.  c om
 * @param source the XML source
 * @return a String with readable XML
 */
public static String prettyPrint(final Source source) {
    try {
        Transformer serializer = TransformerFactory.newInstance().newTransformer();
        serializer.setOutputProperty(OutputKeys.INDENT, "yes");
        serializer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
        StringWriter writer = new StringWriter();
        serializer.transform(source, new StreamResult(writer));
        return writer.toString();
    } catch (TransformerException e) {
        return e.getMessage();
    }
}

From source file:com.netflix.hystrix.serial.SerialHystrixRequestEvents.java

public static String toJsonString(HystrixRequestEvents requestEvents) {
    StringWriter jsonString = new StringWriter();

    try {//from   ww  w  .  j  a va  2 s  . c o  m
        JsonGenerator json = jsonFactory.createGenerator(jsonString);

        serializeRequestEvents(requestEvents, json);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }

    return jsonString.getBuffer().toString();
}

From source file:Main.java

private static String getXmlString(Document document, String tagName)
        throws ParserConfigurationException, SAXException, IOException, TransformerException {
    NodeList nodeList = document.getElementsByTagName(tagName);
    if (nodeList.getLength() < 1) {
        throw new IllegalArgumentException("no " + tagName + " found");
    }/*from  w ww.  j  av a 2  s  . co  m*/
    Node sub = nodeList.item(0);
    DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
    Document subdoc = db.newDocument();
    subdoc.appendChild(sub.cloneNode(true));

    TransformerFactory transFactory = TransformerFactory.newInstance();
    Transformer transformer = transFactory.newTransformer();
    DOMSource domSource = new DOMSource(subdoc);
    StringWriter sw = new StringWriter();
    StreamResult xmlResult = new StreamResult(sw);
    transformer.transform(domSource, xmlResult);
    sw.flush();
    return sw.toString();
}