Example usage for com.fasterxml.jackson.databind ObjectMapper writeValue

Introduction

In this page you can find the example usage for com.fasterxml.jackson.databind ObjectMapper writeValue.

Prototype

public void writeValue(Writer w, Object value)
        throws IOException, JsonGenerationException, JsonMappingException

Source Link

Document

Method that can be used to serialize any Java value as JSON output, using Writer provided.

Usage

From source file:org.httpobjects.jackson.JacksonDSL.java

public static Representation JacksonJson(final Object object, final ObjectMapper jackson) {
    return new Representation() {

        @Override/*from  w  w  w .j ava2  s  .  c  o m*/
        public void write(OutputStream out) {
            try {
                jackson.writeValue(out, object);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }

        @Override
        public String contentType() {
            return "application/json";
        }
    };
}

From source file:com.tectonica.thirdparty.Jackson2.java

public static void toJson(OutputStream os, Object o, ObjectMapper mapper) {
    try {// w ww . j  a  v a 2 s . co  m
        mapper.writeValue(os, o);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:com.tectonica.thirdparty.Jackson2.java

public static void toJson(Writer w, Object o, ObjectMapper mapper) {
    try {//from ww  w  .  j ava 2 s  . c  om
        mapper.writeValue(w, o);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:de.javagl.jgltf.browser.MenuNodesCreator.java

/**
 * Write the given list of {@link MenuNode} objects as JSON to the
 * given output stream. The caller is responsible for closing the 
 * given stream.//from   ww  w  .  j av  a 2  s . c om
 * 
 * @param menuNodes The menu nodes
 * @param outputStream The output stream
 * @throws IOException If an IO error occurs
 */
private static void write(List<? extends MenuNode> menuNodes, OutputStream outputStream) throws IOException {
    ObjectMapper objectMapper = new ObjectMapper();
    objectMapper.setSerializationInclusion(Include.NON_NULL);
    objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
    objectMapper.writeValue(outputStream, menuNodes);
}

From source file:fr.feedreader.websocket.UpdateFeed.java

public static void notifyUpdateFeed(Map<Feed, List<FeedItem>> newFeedItem, Map<Feed, Long> countUnread) {
    LogManager.getLogger().info("notification de mise  jour de flux");
    ObjectMapper mapper = new ObjectMapper();
    FeedUpdateWrapper feedUpdateWrapper = new FeedUpdateWrapper(newFeedItem, countUnread);
    try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
        mapper.writeValue(baos, feedUpdateWrapper);
        String jsonResponse = baos.toString("UTF-8");
        availableSession.iterator();/*from www.  j  av a 2 s. c o m*/
        for (Iterator<Session> it = availableSession.iterator(); it.hasNext();) {
            Session session = it.next();
            try {
                session.getBasicRemote().sendText(jsonResponse);
                LogManager.getLogger().info("Envoyer  \"" + session.getId() + "\"");
            } catch (ClosedChannelException ex) {
                LogManager.getLogger().error(
                        "Session \"" + session.getId() + "\" Fermer. Exclusion de la liste des session active");
                it.remove();
            } catch (IOException ex) {
                LogManager.getLogger().error("Erreur dans l'envoi  la websocket : " + session.getId(), ex);
            }
        }
    } catch (IOException ioe) {
        LogManager.getLogger().error("Impossible de convertir les flux mis  jour en json", ioe);
    }
}

From source file:de.alpharogroup.xml.json.JsonTransformer.java

/**
 * Creates from the given {@link List} to a json string.
 *
 * @param <T>//w ww  .  j a va  2s.  c  om
 *            the generic type
 * @param list
 *            the list
 * @return the json string.
 * @throws JsonGenerationException
 *             If an error occurs by writing json string
 * @throws JsonMappingException
 *             the If an error occurs when mapping the string into Object
 * @throws IOException
 *             Signals that an I/O exception has occurred.
 */
public static <T> String toJson(final List<T> list)
        throws JsonGenerationException, JsonMappingException, IOException {
    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    final ObjectMapper mapper = new ObjectMapper();

    mapper.writeValue(out, list);

    final byte[] bytes = out.toByteArray();
    out.close();
    return new String(bytes);
}

From source file:com.msopentech.odatajclient.engine.data.Serializer.java

private static <T extends AbstractPayloadObject> void json(final T obj, final Writer writer) {
    try {//  www .  j  a va  2  s. co  m
        final ObjectMapper mapper = new ObjectMapper().setSerializationInclusion(JsonInclude.Include.NON_NULL);
        mapper.writeValue(writer, obj);
    } catch (IOException e) {
        throw new IllegalArgumentException("While serializing JSON object", e);
    }
}

From source file:com.mac.holdempoker.socket.JsonConverter.java

public static String toJsonString(Object obj) throws IOException {
    ObjectMapper objectMapper = new ObjectMapper();

    //configure Object mapper for pretty print
    objectMapper.configure(SerializationFeature.INDENT_OUTPUT, true);

    //writing to console, can write to any output stream such as file
    StringWriter jsonString = new StringWriter();
    objectMapper.writeValue(jsonString, obj);
    return jsonString.toString();
}

From source file:groovyx.net.http.optional.Jackson.java

/**
 * Used to encode the request content using the Jackson JSON encoder.
 *
 * @param config the configuration//from w w  w  .jav a 2s.  c o m
 * @param ts the server request content accessor
 */
@SuppressWarnings("WeakerAccess")
public static void encode(final ChainedHttpConfig config, final ToServer ts) {
    try {
        if (handleRawUpload(config, ts)) {
            return;
        }

        final ChainedHttpConfig.ChainedRequest request = config.getChainedRequest();
        final ObjectMapper mapper = (ObjectMapper) config.actualContext(request.actualContentType(),
                OBJECT_MAPPER_ID);
        final StringWriter writer = new StringWriter();
        mapper.writeValue(writer, request.actualBody());
        ts.toServer(new CharSequenceInputStream(writer.toString(), request.actualCharset()));
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:com.ant.myteam.gcm.POST2GCM.java

public static void post(String apiKey, Content content) {

    try {//from  ww  w  . j a va  2 s.co  m

        // 1. URL
        URL url = new URL("https://android.googleapis.com/gcm/send");

        // 2. Open connection
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();

        // 3. Specify POST method
        conn.setRequestMethod("POST");

        // 4. Set the headers
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestProperty("Authorization", "key=" + apiKey);

        conn.setDoOutput(true);

        // 5. Add JSON data into POST request body

        //`5.1 Use Jackson object mapper to convert Contnet object into JSON
        ObjectMapper mapper = new ObjectMapper();

        // 5.2 Get connection output stream
        DataOutputStream wr = new DataOutputStream(conn.getOutputStream());

        // 5.3 Copy Content "JSON" into
        mapper.writeValue(wr, content);

        // 5.4 Send the request
        wr.flush();

        // 5.5 close
        wr.close();

        // 6. Get the response
        int responseCode = conn.getResponseCode();
        System.out.println("\nSending 'POST' request to URL : " + url);
        System.out.println("Response Code : " + responseCode);

        BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        // 7. Print result
        System.out.println(response.toString());

    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}