Example usage for com.fasterxml.jackson.core JsonGenerator useDefaultPrettyPrinter

Introduction

In this page you can find the example usage for com.fasterxml.jackson.core JsonGenerator useDefaultPrettyPrinter.

Prototype

public abstract JsonGenerator useDefaultPrettyPrinter();

Source Link

Document

Convenience method for enabling pretty-printing using the default pretty printer ( com.fasterxml.jackson.core.util.DefaultPrettyPrinter ).

Usage

From source file:eu.project.ttc.engines.exporter.JsonCasExporter.java

@Override
public void process(JCas aJCas) throws AnalysisEngineProcessException {
    /*/*  w  w w  .  j av  a2 s. com*/
     *  Cette mthode est appele par le framework UIMA
     *  pour chaque document  de ta collection (corpus).
     *
     *  Tu peux gnrer ton fichier compagnon dans cette mthode.
     *  (Je te donne l'astuce pour retrouver le nom et le chemin du fichier
     *  de ton corpus correspondant au CAS pass en paramtre de cette
     *  mthode plus tard)
     */

    FSIterator<Annotation> it = aJCas.getAnnotationIndex().iterator();
    Annotation a;
    JsonFactory jsonFactory = new JsonFactory();
    String name = this.getExportFilePath(aJCas, "json");
    File file = new File(this.directoryFile, name);
    FileWriter writer = null;
    try {
        writer = new FileWriter(file);
        LOGGER.debug("Writing " + file.getPath());
        JsonGenerator jg = jsonFactory.createGenerator(writer);
        jg.useDefaultPrettyPrinter();
        jg.writeStartObject();
        jg.writeStringField("file", name);
        jg.writeArrayFieldStart("tag");
        while (it.hasNext()) {
            a = it.next();
            if (a instanceof WordAnnotation) {
                jg.writeStartObject();
                WordAnnotation wordAnno = (WordAnnotation) a;
                for (Feature feat : wordAnno.getType().getFeatures()) {
                    FeatureStructure featureValue = wordAnno.getFeatureValue(feat);
                    if (featureValue != null) {
                        jg.writeFieldName(feat.getName());
                        jg.writeObject(featureValue);
                    }
                }
                jg.writeStringField("tag", wordAnno.getTag());
                jg.writeStringField("lemma", wordAnno.getLemma());
                jg.writeNumberField("begin", wordAnno.getBegin());
                jg.writeNumberField("end", wordAnno.getEnd());
                jg.writeEndObject();
            }
        }
        jg.writeEndArray();
        jg.writeEndObject();
        jg.flush();
        writer.close();
    } catch (IOException e) {
        LOGGER.error("Failure while serializing " + name + "\nCaused by" + e.getClass().getCanonicalName() + ":"
                + e.getMessage(), e);
    }
}

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From source file:com.googlecode.jmxtrans.model.output.SensuWriter.java

private void serialize(Server server, Query query, List<Result> results, OutputStream outputStream)
        throws IOException {
    JsonGenerator g = jsonFactory.createGenerator(outputStream, JsonEncoding.UTF8);
    g.useDefaultPrettyPrinter();
    g.writeStartObject();/*from  w ww  .j  a  v a2s  .  c o m*/
    g.writeStringField("name", "jmxtrans");
    g.writeStringField("type", "metric");
    g.writeStringField("handler", handler);

    StringBuilder jsonoutput = new StringBuilder();
    List<String> typeNames = getTypeNames();
    for (Result result : results) {
        for (Map.Entry<String, Object> values : result.getValues().entrySet()) {
            if (isNumeric(values.getValue())) {
                Object value = values.getValue();
                jsonoutput.append(KeyUtils.getKeyString(server, query, result, values, typeNames, null))
                        .append(" ").append(value).append(" ")
                        .append(TimeUnit.SECONDS.convert(result.getEpoch(), TimeUnit.MILLISECONDS))
                        .append(System.getProperty("line.separator"));
            }
        }
    }
    g.writeStringField("output", jsonoutput.toString());
    g.writeEndObject();
    g.flush();
    g.close();
}

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From source file:api.controller.ApiDocsController.java

@RequestMapping(method = RequestMethod.GET, headers = "Accept=application/json")
public @ResponseBody String genDocs() throws IOException {
    StringWriter sw = new StringWriter();
    JsonGenerator g = new JsonFactory().createGenerator(sw);
    g.useDefaultPrettyPrinter();

    g.writeStartObject();//w  w w . ja  va 2  s.  co m
    g.writeStringField("swagger", "2.0");
    g.writeObjectFieldStart("info");
    g.writeStringField("title", "Java, SpringMVC, Jetty, Heroku API example");
    g.writeStringField("description", "Example of simple microservice for API");
    g.writeObjectFieldStart("contact");
    g.writeStringField("name", "zedar");
    g.writeStringField("url", "https://github.com/zedar");
    g.writeEndObject();
    g.writeObjectFieldStart("license");
    g.writeStringField("name", "Creative Commons 4.0 International");
    g.writeStringField("url", "http://creativecommons.org/licenses/by/4.0/");
    g.writeEndObject();
    g.writeStringField("version", "0.0.1");
    g.writeEndObject();
    g.writeStringField("host", "api-springmvc-jetty.herokuapp.com");
    g.writeStringField("basePath", "/api");
    g.writeArrayFieldStart("schemes");
    g.writeString("https");
    g.writeEndArray();
    g.writeObjectFieldStart("paths");
    g.writeObjectFieldStart("/actions");
    g.writeObjectFieldStart("get");
    g.writeArrayFieldStart("tags");
    g.writeString("action");
    g.writeEndArray();
    g.writeStringField("summary", "Find actions with optional query");
    g.writeArrayFieldStart("parameters");
    g.writeStartObject();
    g.writeStringField("name", "query");
    g.writeStringField("in", "query");
    g.writeStringField("type", "string");
    g.writeEndObject();
    g.writeEndArray();
    g.writeObjectFieldStart("responses");
    g.writeObjectFieldStart("200");
    g.writeStringField("description", "Response with list of found actions");
    g.writeObjectFieldStart("schema");
    g.writeStringField("type", "array");
    g.writeObjectFieldStart("items");
    g.writeStringField("$ref", "#/definitions/Action");
    g.writeEndObject();
    g.writeEndObject();
    g.writeEndObject();
    g.writeObjectFieldStart("default");
    g.writeStringField("description", "Unexpected error");
    g.writeObjectFieldStart("schema");
    g.writeStringField("$ref", "#/definitions/Error");
    g.writeEndObject();
    g.writeEndObject();
    g.writeEndObject();
    g.writeEndObject();
    g.writeEndObject();
    g.writeEndObject();
    g.writeObjectFieldStart("definitions");
    g.writeObjectFieldStart("Action");
    g.writeArrayFieldStart("required");
    g.writeString("id");
    g.writeString("name");
    g.writeEndArray();
    g.writeObjectFieldStart("properties");
    g.writeObjectFieldStart("id");
    g.writeStringField("type", "string");
    g.writeEndObject();
    g.writeObjectFieldStart("name");
    g.writeStringField("type", "string");
    g.writeEndObject();
    g.writeObjectFieldStart("description");
    g.writeStringField("type", "string");
    g.writeEndObject();
    g.writeObjectFieldStart("url");
    g.writeStringField("type", "string");
    g.writeEndObject();
    g.writeObjectFieldStart("tags");
    g.writeStringField("type", "string");
    g.writeEndObject();
    g.writeEndObject();
    g.writeEndObject();
    g.writeObjectFieldStart("Error");
    g.writeArrayFieldStart("required");
    g.writeString("code");
    g.writeString("message");
    g.writeEndArray();
    g.writeObjectFieldStart("properties");
    g.writeObjectFieldStart("code");
    g.writeStringField("type", "string");
    g.writeEndObject();
    g.writeObjectFieldStart("message");
    g.writeStringField("type", "string");
    g.writeEndObject();
    g.writeEndObject();
    g.writeEndObject();
    g.writeEndObject();
    g.writeEndObject();

    g.close();
    String out = sw.toString();
    log.debug("API-DOCS:" + out);

    return out;
}

---

From source file:gaffer.jsonserialisation.JSONSerialiser.java

/**
 * Serialises an object using the provided json generator.
 *
 * @param object        the object to be serialised and written to file
 * @param jsonGenerator the {@link com.fasterxml.jackson.core.JsonGenerator} to use to write the object to
 * @param prettyPrint   true if the object should be serialised with pretty printing
 * @throws SerialisationException if the object fails to serialise
 *///from   w  w w. j a v a2  s.c  o  m
public void serialise(final Object object, final JsonGenerator jsonGenerator, final boolean prettyPrint)
        throws SerialisationException {
    if (prettyPrint) {
        jsonGenerator.useDefaultPrettyPrinter();
    }

    try {
        mapper.writeValue(jsonGenerator, object);
    } catch (IOException e) {
        throw new SerialisationException("Failed to serialise object to json: " + e.getMessage(), e);
    }
}

---

From source file:org.n52.ar.layar.LayarServlet.java

/**
 * http://layar.com/documentation/browser/api/getpois-request/
 *///www . ja v  a 2 s . c o  m
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    String userAgent = request.getHeader("User-agent");
    log.debug("User-agent={}", userAgent);

    /*
     * mandatory:
     */
    String userId = request.getParameter("userId");
    String version = request.getParameter("version");
    String countryCode = request.getParameter("countryCode");
    String lang = request.getParameter("lang");

    String action = request.getParameter("action");
    if (action == null) {
        // response.sendError(HttpServletResponse.SC_BAD_REQUEST,
        // "Missing parameter 'action'");
        // return;
        log.debug("No action given.");
    }

    String latParam = request.getParameter("lat");
    if (latParam == null) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Missing parameter 'lat'");
        return;
    }

    String lonParam = request.getParameter("lon");
    if (lonParam == null) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Missing parameter 'lon'");
        return;
    }

    String radiusParam = request.getParameter("radius");
    if (radiusParam == null) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Missing parameter 'radius'");
        return;
    }

    /*
     * optional:
     */
    String accurary = request.getParameter("accuracy");
    String pageKey = request.getParameter("pageKey");
    // String oauth_consumer_key =
    // request.getParameter("oauth_consumer_key");
    // String oauth_signature_method =
    // request.getParameter("oauth_signature_method");
    String radiolist = request.getParameter("RADIOLIST");
    String searchbox = request.getParameter("SEARCHBOX");
    String custom_slider = request.getParameter("CUSTOM_SLIDER");
    String checkboxlist = request.getParameter("CHECKBOXLIST");
    String localCountryCode = request.getParameter("localCountryCode");
    String alt = request.getParameter("alt"); // current altitude
    String recognizedReferenceImage = request.getParameter("recognizedReferenceImage");

    // convert parameters
    float lat = Float.parseFloat(latParam);
    float lon = Float.parseFloat(lonParam);
    double[] center = new double[] { lat, lon };
    float radius = Float.parseFloat(radiusParam);

    // get nearby sensors
    LayarResponse layarResponse = new LayarResponse();
    layarResponse.layer = request.getParameter("layerName");
    if (layarResponse.layer == null) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Missing parameter 'layerName'");
        return;
    }

    response.setContentType("application/json; charset=utf-8");
    JsonGenerator generator = this.factory.createJsonGenerator(response.getWriter());
    generator.useDefaultPrettyPrinter();

    // query SIR
    try {
        Collection<SirPOI> pois = querySIR(center, radius, REQUEST_FORMAT);

        for (SirPOI sirPOI : pois) {
            if (sirPOI instanceof Hotspot) {
                Hotspot h = (Hotspot) sirPOI;
                layarResponse.hotspots.add(h);
            }
        }
    } catch (Exception e) {
        log.error("Error querying SIR.", e);
        layarResponse.errorCode = LayarResponse.CODE_ERROR;
        layarResponse.errorString = e.toString() + ": " + e.getMessage();
        layarResponse.showMessage = "Server side exception!";
    }

    // write response
    layarResponse.toJSON(generator);

    // clean up
    generator.close();
    response.flushBuffer();
}

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From source file:net.floodlightcontroller.configuration.ConfigurationManager.java

@Override
public String showConfiguration(String fileName) {
    ObjectMapper mapper = new ObjectMapper();
    ObjectNode rootNode = createJsonRootNode();
    JsonFactory f = new JsonFactory();
    OutputStream out = new ByteArrayOutputStream();
    JsonGenerator g = null;
    try {//www .  j  av a2s  .  c  o m
        g = f.createGenerator(out, JsonEncoding.UTF8);
        g.useDefaultPrettyPrinter();
        mapper.writeTree(g, rootNode);
    } catch (IOException e) {
        return "Error: Could not parse the JSON configuration file.";
    }
    return out.toString();
}

---

From source file:net.floodlightcontroller.configuration.ConfigurationManager.java

/**
 * Writes a configuration file based on information gathered from
 * the various configuration listeners./*from   ww  w. j av  a 2s .  co  m*/
 * 
 * @param file An optional configuration file name.
 */
private void writeJsonToFile(String fileName) throws IOException {
    String configFile = (fileName != null) ? fileName : this.fileName;
    ObjectMapper mapper = new ObjectMapper();
    ObjectNode rootNode = createJsonRootNode();
    JsonFactory f = new JsonFactory();
    JsonGenerator g = null;

    try {
        g = f.createJsonGenerator(new File(configFile), JsonEncoding.UTF8);
        g.useDefaultPrettyPrinter();
        mapper.writeTree(g, rootNode);
    } catch (IOException e) {
        if (logger.isErrorEnabled()) {
            logger.error("Could not write the JSON configuration file.");
        }
        throw new IOException("Could not write the JSON configuration file");
    }
}

---

From source file:io.pdef.json.JsonJacksonFormat.java

/** Serializes an object into a string. */
public <T> String write(final T object, final DataTypeDescriptor<T> descriptor, final boolean indent)
        throws IOException {
    if (descriptor == null)
        throw new NullPointerException("descriptor");

    StringWriter out = new StringWriter();
    JsonGenerator generator = factory.createGenerator(out);
    if (indent) {
        generator.useDefaultPrettyPrinter();
    }//from   w  w w.  j  a  v  a  2  s . c o m

    write(object, descriptor, generator);
    generator.flush();
    return out.toString();
}

---

From source file:io.pdef.json.JsonJacksonFormat.java

/** Writes an object to an output stream as a JSON string, does not close the stream. */
public <T> void write(final OutputStream stream, final T object, final DataTypeDescriptor<T> descriptor,
        final boolean indent) throws IOException {
    if (stream == null)
        throw new NullPointerException("out");
    if (descriptor == null)
        throw new NullPointerException("descriptor");

    JsonGenerator generator = factory.createGenerator(stream);
    if (indent) {
        generator.useDefaultPrettyPrinter();
    }//from ww w.  j  a v  a  2s.co  m

    write(object, descriptor, generator);
    generator.flush();
}

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