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

List of usage examples for com.fasterxml.jackson.core JsonGenerator writeStartObject

  1. HOME
  2. Java
  3. com.fasterxml
  4. com.fasterxml.jackson.core.*
  5. JsonGenerator
  6. writeStartObject

Introduction

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

Prototype

public abstract void writeStartObject() throws IOException, JsonGenerationException;

Source Link

Document

Method for writing starting marker of a JSON Object value (character '{'; plus possible white space decoration if pretty-printing is enabled).

Usage

From source file:com.google.openrtb.json.OpenRtbNativeJsonWriter.java

public final void writeRespLink(NativeResponse.Link link, JsonGenerator gen) throws IOException {
    gen.writeStartObject();
    writeRespLinkFields(link, gen);//from  w  w  w. j a v a 2  s  .  c om
    writeExtensions(link, gen);
    gen.writeEndObject();
}

From source file:com.predic8.membrane.core.interceptor.administration.AdminRESTInterceptor.java

@Mapping("/admin/rest/exchanges(/?\\?.*)?")
public Response getExchanges(QueryParameter params, String relativeRootPath) throws Exception {

    if (params.getString("waitForModification") != null) {
        getRouter().getExchangeStore().waitForModification(params.getLong("waitForModification"));
    }/*w  w w.  j a  va2s  . com*/

    List<AbstractExchange> exchanges;
    synchronized (getRouter().getExchangeStore().getAllExchangesAsList()) {
        exchanges = new ArrayList<AbstractExchange>(getRouter().getExchangeStore().getAllExchangesAsList());
    }

    exchanges = filter(params, exchanges);

    Collections.sort(exchanges, ComparatorFactory.getAbstractExchangeComparator(
            params.getString("sort", "time"), params.getString("order", "desc")));

    int offset = params.getInt("offset", 0);
    int max = params.getInt("max", exchanges.size());

    final int total = exchanges.size();
    final List<AbstractExchange> paginated = exchanges.subList(offset,
            Math.min(offset + max, exchanges.size()));

    return json(new JSONContent() {
        public void write(JsonGenerator gen) throws Exception {
            gen.writeStartObject();
            gen.writeArrayFieldStart("exchanges");
            for (AbstractExchange e : paginated) {
                writeExchange(e, gen);
            }
            gen.writeEndArray();
            gen.writeNumberField("total", total);
            gen.writeNumberField("lastModified", getRouter().getExchangeStore().getLastModified());
            gen.writeEndObject();
        }
    });
}

From source file:org.neo4j.ontology.server.unmanaged.AnnotationResource.java

private void writeJsonNodeObjectifiedObject(JsonGenerator jg, Node term, Label annotationLabel)
        throws IOException {
    jg.writeStartObject(); // {
    jg.writeStringField("uri", term.getProperty("uri").toString()); // uri: "http://www.w3.org/2002/07/owl#Thing"
    jg.writeStringField("ontId", term.getProperty("name").toString()); // ontId: "OWL:Thing"
    jg.writeStringField("label", term.getProperty("rdfs:label", term.getProperty("name")).toString()); // ontId: "OWL:Thing"
    jg.writeFieldName("dataSets"); // dataSets:
    jg.writeStartObject(); // {
    jg.writeEndObject(); // }
    writeJsonNodeObjectifiedObjectParents(jg, term, annotationLabel);
    jg.writeEndObject(); // }
}

From source file:ratpack.codahale.metrics.internal.WebSocketReporter.java

private void writeMeters(JsonGenerator json, SortedMap<String, Meter> meters) throws IOException {
    json.writeArrayFieldStart("meters");
    for (Map.Entry<String, Meter> entry : meters.entrySet()) {
        Meter meter = entry.getValue();//  w  ww  . ja v  a2  s .c o  m

        json.writeStartObject();
        json.writeStringField("name", entry.getKey());
        json.writeNumberField("count", meter.getCount());
        json.writeNumberField("meanRate", convertRate(meter.getMeanRate()));
        json.writeNumberField("oneMinuteRate", convertRate(meter.getOneMinuteRate()));
        json.writeNumberField("fiveMinuteRate", convertRate(meter.getFiveMinuteRate()));
        json.writeNumberField("fifteenMinuteRate", convertRate(meter.getFifteenMinuteRate()));
        json.writeEndObject();
    }
    json.writeEndArray();
}

From source file:com.google.openrtb.json.OpenRtbNativeJsonWriter.java

/**
 * Serializes a {@link NativeRequest} to JSON, with a provided {@link JsonGenerator}
 * which allows several choices of output and encoding.
 *//*from w  ww .ja v  a2s. co  m*/
public final void writeNativeRequest(NativeRequest req, JsonGenerator gen) throws IOException {
    gen.writeStartObject();
    if (factory().isRootNativeField()) {
        gen.writeObjectFieldStart("native");
    }
    writeNativeRequestFields(req, gen);
    writeExtensions(req, gen);
    if (factory().isRootNativeField()) {
        gen.writeEndObject();
    }
    gen.writeEndObject();
    gen.flush();
}

From source file:com.google.openrtb.json.OpenRtbNativeJsonWriter.java

/**
 * Serializes a {@link NativeResponse} to JSON, with a provided {@link JsonGenerator}
 * which allows several choices of output and encoding.
 *//*w ww .j a va2 s  .  co  m*/
public final void writeNativeResponse(NativeResponse resp, JsonGenerator gen) throws IOException {
    gen.writeStartObject();
    if (factory().isRootNativeField()) {
        gen.writeObjectFieldStart("native");
    }
    writeNativeResponseFields(resp, gen);
    writeExtensions(resp, gen);
    if (factory().isRootNativeField()) {
        gen.writeEndObject();
    }
    gen.writeEndObject();
    gen.flush();
}

From source file:org.canova.api.conf.Configuration.java

/**
 *  Writes out all the parameters and their properties (final and resource) to
 *  the given {@link Writer}//from  w  w  w  . j  a  v a2  s .c  o m
 *  The format of the output would be
 *  { "properties" : [ {key1,value1,key1.isFinal,key1.resource}, {key2,value2,
 *  key2.isFinal,key2.resource}... ] }
 *  It does not output the parameters of the configuration object which is
 *  loaded from an input stream.
 * @param out the Writer to write to
 * @throws IOException
 */
public static void dumpConfiguration(Configuration conf, Writer out) throws IOException {
    Configuration config = new Configuration(conf, true);
    config.reloadConfiguration();
    JsonFactory dumpFactory = new JsonFactory();
    JsonGenerator dumpGenerator = dumpFactory.createGenerator(out);
    dumpGenerator.writeStartObject();
    dumpGenerator.writeFieldName("properties");
    dumpGenerator.writeStartArray();
    dumpGenerator.flush();
    for (Map.Entry<Object, Object> item : config.getProps().entrySet()) {
        dumpGenerator.writeStartObject();
        dumpGenerator.writeStringField("key", (String) item.getKey());
        dumpGenerator.writeStringField("value", config.get((String) item.getKey()));
        dumpGenerator.writeBooleanField("isFinal", config.finalParameters.contains(item.getKey()));
        dumpGenerator.writeStringField("resource", config.updatingResource.get(item.getKey()));
        dumpGenerator.writeEndObject();
    }
    dumpGenerator.writeEndArray();
    dumpGenerator.writeEndObject();
    dumpGenerator.flush();
}

From source file:test.com.azaptree.services.json.JsonUtilsTest.java

@Test
public void test_serialize_JSONEncoding() throws JsonGenerationException, IOException {
    final ByteArrayOutputStream bos = new ByteArrayOutputStream();
    final JsonGenerator generator = JsonUtils.createJsonGenerator(bos, JsonEncoding.UTF8);
    generator.writeStartObject();
    generator.writeStringField("stringField", "stringFieldValue");
    generator.writeNumberField("numberField", 5);
    generator.writeEndObject();/*  ww  w .ja  va2s.co  m*/
    generator.close();

    final Map<String, Object> test = JsonUtils.parse(new ByteArrayInputStream(bos.toByteArray()));
    Assert.assertEquals(test.get("stringField"), "stringFieldValue");
    Assert.assertEquals(test.get("numberField"), 5);
}

From source file:ratpack.codahale.metrics.internal.WebSocketReporter.java

@SuppressWarnings("rawtypes")
private void writeGauges(JsonGenerator json, SortedMap<String, Gauge> gauges) throws IOException {
    json.writeArrayFieldStart("gauges");
    for (Map.Entry<String, Gauge> entry : gauges.entrySet()) {
        Gauge gauge = entry.getValue();//from   www  .  j  a  v  a2s .c  o  m

        json.writeStartObject();
        json.writeStringField("name", entry.getKey());
        try {
            json.writeFieldName("value");
            json.writeObject(gauge.getValue());
        } catch (Exception e) {
            LOGGER.log(Level.FINE, "Exception encountered while reporting [" + entry.getKey() + "]: "
                    + e.getLocalizedMessage());
            json.writeNull();
        }
        json.writeEndObject();

    }
    json.writeEndArray();
}

From source file:com.example.MessageList.java

/**
 * Build message list dependent on the format Message Hub requires. The
 * message list is in the form: [{ "value": base_64_string }, ...]
 * //from   w  w  w .  j ava 2s.co m
 * @return {String} String representation of a JSON object.
 * @throws IOException
 */
public String build() throws IOException {
    final JsonFactory jsonFactory = new JsonFactory();
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    JsonGenerator jsonGenerator = null;

    jsonGenerator = jsonFactory.createGenerator(outputStream);

    // [
    jsonGenerator.writeStartArray();

    // Write each message as a JSON object in
    // the form:
    // { "value": base_64_string }
    for (int i = 0; i < this.messages.size(); i++) {
        jsonGenerator.writeStartObject();
        jsonGenerator.writeFieldName("value");
        jsonGenerator.writeObject(this.messages.get(i));
        jsonGenerator.writeEndObject();
    }

    // ]
    jsonGenerator.writeEndArray();

    // Close underlying streams and return string representation.
    jsonGenerator.close();
    outputStream.close();

    return new String(outputStream.toByteArray());
}