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

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

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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: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();//ww w  .  j a  va  2s .c om

    g.writeStartObject();
    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:org.eclipse.winery.repository.resources.servicetemplates.boundarydefinitions.interfaces.ExportedOperationResource.java

@GET
@Produces(MediaType.APPLICATION_JSON)//from   w  ww.  ja va 2  s. c  o m
public Response getJSON() {
    JsonFactory jsonFactory = new JsonFactory();
    StringWriter sw = new StringWriter();
    try {
        JsonGenerator jg = jsonFactory.createGenerator(sw);
        jg.writeStartObject();
        String type = this.getType();
        jg.writeStringField("type", type);
        jg.writeStringField("ref", this.getReference());
        if ((type != null) && (!type.equals("Plan"))) {
            jg.writeStringField("interfacename", this.getInterfaceName());
            jg.writeStringField("operationname", this.getOperationName());
        }
        jg.writeEndObject();
        jg.close();
    } catch (Exception e) {
        ExportedOperationResource.LOGGER.error(e.getMessage(), e);
        throw new WebApplicationException(Response.status(Status.INTERNAL_SERVER_ERROR).entity(e).build());
    }
    return Response.ok(sw.toString()).build();
}

From source file:org.mycontroller.standalone.api.jaxrs.mixins.serializers.SensorVariableInfoSerializer.java

@Override
public void serialize(SensorVariable sensorVariable, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonProcessingException {

    if (sensorVariable != null) {
        ResourceModel resourceModel = new ResourceModel(RESOURCE_TYPE.SENSOR_VARIABLE, sensorVariable.getId());
        jgen.writeStartObject();
        provider.defaultSerializeField("id", sensorVariable.getId(), jgen);
        provider.defaultSerializeField("name", resourceModel.getResourceLessDetails(), jgen);
        provider.defaultSerializeField("type", sensorVariable.getVariableType().getText(), jgen);
        jgen.writeEndObject();/*from   w ww .  ja  va 2 s.  c o m*/
    } else {
        jgen.writeNull();
    }

}

From source file:com.viridiansoftware.metrics.elasticsearch.ElasticsearchReporter.java

private void reportMetered(String index, long timestamp, String name, Metered meter) throws IOException {
    StringWriter writer = new StringWriter();
    JsonGenerator jsonGenerator = jsonFactory.createGenerator(writer);
    jsonGenerator.writeStartObject();
    jsonGenerator.writeNumberField(timestampFieldName, timestamp);
    jsonGenerator.writeStringField("@name", prefixMetricName(name));

    jsonGenerator.writeNumberField("count", meter.getCount());
    jsonGenerator.writeNumberField("m1_rate", convertRate(meter.getOneMinuteRate()));
    jsonGenerator.writeNumberField("m5_rate", convertRate(meter.getFiveMinuteRate()));
    jsonGenerator.writeNumberField("m15_rate", convertRate(meter.getFifteenMinuteRate()));
    jsonGenerator.writeNumberField("mean_rate", convertRate(meter.getMeanRate()));

    jsonGenerator.writeEndObject();//  w w w .j  a  v  a 2 s  . co m
    jsonGenerator.flush();
    addReportToBulkRequest(index, MetricElasticsearchTypes.METER, writer.toString());
}

From source file:com.netflix.discovery.converters.jackson.serializer.InstanceInfoJsonBeanSerializer.java

@Override
protected void serializeFields(Object bean, JsonGenerator jgen0, SerializerProvider provider)
        throws IOException {
    super.serializeFields(bean, jgen0, provider);
    InstanceInfo instanceInfo = (InstanceInfo) bean;

    jgen0.writeFieldName("port");
    jgen0.writeStartObject();
    jgen0.writeNumberField("$", instanceInfo.getPort());
    jgen0.writeStringField("@enabled", Boolean.toString(instanceInfo.isPortEnabled(PortType.UNSECURE)));
    jgen0.writeEndObject();//from  w w w .  j  ava  2 s.com

    jgen0.writeFieldName("securePort");
    jgen0.writeStartObject();
    jgen0.writeNumberField("$", instanceInfo.getSecurePort());
    jgen0.writeStringField("@enabled", Boolean.toString(instanceInfo.isPortEnabled(PortType.SECURE)));
    jgen0.writeEndObject();

    // Save @class field for backward compatibility. Remove once all clients are migrated to the new codec
    if (!compactMode) {
        jgen0.writeFieldName("metadata");
        if (instanceInfo.getMetadata() == null || instanceInfo.getMetadata().isEmpty()) {
            stringMapObjectMapper.writeValue(jgen0, EMPTY_MAP);
        } else {
            stringMapObjectMapper.writeValue(jgen0, instanceInfo.getMetadata());
        }
    }
}

From source file:com.msopentech.odatajclient.engine.data.impl.JSONEntrySerializer.java

@Override
protected void doSerialize(final AbstractJSONEntry entry, final JsonGenerator jgen,
        final SerializerProvider provider) throws IOException, JsonProcessingException {

    jgen.writeStartObject();

    if (entry.getMetadata() != null) {
        jgen.writeStringField(ODataConstants.JSON_METADATA, entry.getMetadata().toASCIIString());
    }//from w  ww.j a  va2s .co  m
    if (StringUtils.isNotBlank(entry.getType())) {
        jgen.writeStringField(ODataConstants.JSON_TYPE, entry.getType());
    }
    if (entry.getId() != null) {
        jgen.writeStringField(ODataConstants.JSON_ID, entry.getId());
    }

    if (entry.getSelfLink() != null) {
        jgen.writeStringField(ODataConstants.JSON_READ_LINK, entry.getSelfLink().getHref());
    }

    if (entry.getEditLink() != null) {
        jgen.writeStringField(ODataConstants.JSON_EDIT_LINK, entry.getEditLink().getHref());
    }

    if (entry.getMediaContentSource() != null) {
        jgen.writeStringField(ODataConstants.JSON_MEDIAREAD_LINK, entry.getMediaContentSource());
    }
    if (entry.getMediaContentType() != null) {
        jgen.writeStringField(ODataConstants.JSON_MEDIA_CONTENT_TYPE, entry.getMediaContentType());
    }

    final Map<String, List<String>> entitySetLinks = new HashMap<String, List<String>>();

    for (JSONLink link : entry.getNavigationLinks()) {
        if (link.getInlineEntry() != null) {
            jgen.writeObjectField(link.getTitle(), link.getInlineEntry());
        } else if (link.getInlineFeed() != null) {
            jgen.writeObjectField(link.getTitle(), link.getInlineFeed());
        } else {
            ODataLinkType type = null;
            try {
                type = ODataLinkType.fromString(client, link.getRel(), link.getType());
            } catch (IllegalArgumentException e) {
                // ignore   
            }

            if (type == ODataLinkType.ENTITY_SET_NAVIGATION) {
                final List<String> uris;
                if (entitySetLinks.containsKey(link.getTitle())) {
                    uris = entitySetLinks.get(link.getTitle());
                } else {
                    uris = new ArrayList<String>();
                    entitySetLinks.put(link.getTitle(), uris);
                }
                uris.add(link.getHref());
            } else {
                jgen.writeStringField(link.getTitle() + ODataConstants.JSON_BIND_LINK_SUFFIX, link.getHref());
            }
        }
    }
    for (Map.Entry<String, List<String>> entitySetLink : entitySetLinks.entrySet()) {
        jgen.writeArrayFieldStart(entitySetLink.getKey() + ODataConstants.JSON_BIND_LINK_SUFFIX);
        for (String uri : entitySetLink.getValue()) {
            jgen.writeString(uri);
        }
        jgen.writeEndArray();
    }

    for (JSONLink link : entry.getMediaEditLinks()) {
        if (link.getTitle() == null) {
            jgen.writeStringField(ODataConstants.JSON_MEDIAEDIT_LINK, link.getHref());
        }

        if (link.getInlineEntry() != null) {
            jgen.writeObjectField(link.getTitle(), link.getInlineEntry());
        }
        if (link.getInlineFeed() != null) {
            jgen.writeObjectField(link.getTitle(), link.getInlineFeed());
        }
    }

    if (entry.getMediaEntryProperties() == null) {
        JSONDOMTreeUtils.writeSubtree(client, jgen, entry.getContent());
    } else {
        JSONDOMTreeUtils.writeSubtree(client, jgen, entry.getMediaEntryProperties());
    }

    jgen.writeEndObject();
}

From source file:com.viridiansoftware.metrics.elasticsearch.ElasticsearchReporter.java

private void reportHistogram(String index, long timestamp, String name, Histogram histogram)
        throws IOException {
    StringWriter writer = new StringWriter();
    JsonGenerator jsonGenerator = jsonFactory.createGenerator(writer);
    jsonGenerator.writeStartObject();
    jsonGenerator.writeNumberField(timestampFieldName, timestamp);
    jsonGenerator.writeStringField("@name", prefixMetricName(name));

    final Snapshot snapshot = histogram.getSnapshot();

    jsonGenerator.writeNumberField("count", histogram.getCount());
    jsonGenerator.writeNumberField("max", convertDuration(snapshot.getMax()));
    jsonGenerator.writeNumberField("mean", convertDuration(snapshot.getMean()));
    jsonGenerator.writeNumberField("min", convertDuration(snapshot.getMin()));
    jsonGenerator.writeNumberField("stddev", convertDuration(snapshot.getStdDev()));
    jsonGenerator.writeNumberField("p50", convertDuration(snapshot.getMedian()));
    jsonGenerator.writeNumberField("p75", convertDuration(snapshot.get75thPercentile()));
    jsonGenerator.writeNumberField("p95", convertDuration(snapshot.get95thPercentile()));
    jsonGenerator.writeNumberField("p98", convertDuration(snapshot.get98thPercentile()));
    jsonGenerator.writeNumberField("p99", convertDuration(snapshot.get99thPercentile()));
    jsonGenerator.writeNumberField("p999", convertDuration(snapshot.get999thPercentile()));

    jsonGenerator.writeEndObject();//from w  w  w  .  j  a v  a 2 s.  co  m
    jsonGenerator.flush();
    addReportToBulkRequest(index, MetricElasticsearchTypes.HISTOGRAM, writer.toString());
}

From source file:com.googlecode.wickedcharts.highcharts.jackson.CrosshairSerializer.java

@Override
public void serialize(final Crosshair value, final JsonGenerator jgen, final SerializerProvider provider)
        throws IOException, JsonProcessingException {

    if (value.getColor() != null || value.getDashStyle() != null || value.getWidth() != null
            || value.getzIndex() != null) {
        jgen.writeStartObject();
        if (value.getColor() != null) {
            jgen.writeObjectField("color", value.getColor());
        }/*from  w ww.  j a va  2s. com*/
        if (value.getDashStyle() != null) {
            jgen.writeObjectField("dashStyle", value.getDashStyle());
        }
        if (value.getWidth() != null) {
            jgen.writeObjectField("width", value.getWidth());
        }
        if (value.getzIndex() != null) {
            jgen.writeObjectField("zIndex", value.getzIndex());
        }
        jgen.writeEndObject();
    } else {
        // if no attributes are given, simply render true
        jgen.writeBoolean(true);
    }

}

From source file:com.viridiansoftware.metrics.elasticsearch.ElasticsearchReporter.java

private void reportTimer(String index, long timestamp, String name, Timer timer) throws IOException {
    StringWriter writer = new StringWriter();
    JsonGenerator jsonGenerator = jsonFactory.createGenerator(writer);
    jsonGenerator.writeStartObject();
    jsonGenerator.writeNumberField(timestampFieldName, timestamp);
    jsonGenerator.writeStringField("@name", prefixMetricName(name));

    final Snapshot snapshot = timer.getSnapshot();

    jsonGenerator.writeNumberField("max", convertDuration(snapshot.getMax()));
    jsonGenerator.writeNumberField("mean", convertDuration(snapshot.getMean()));
    jsonGenerator.writeNumberField("min", convertDuration(snapshot.getMin()));
    jsonGenerator.writeNumberField("stddev", convertDuration(snapshot.getStdDev()));
    jsonGenerator.writeNumberField("p50", convertDuration(snapshot.getMedian()));
    jsonGenerator.writeNumberField("p75", convertDuration(snapshot.get75thPercentile()));
    jsonGenerator.writeNumberField("p95", convertDuration(snapshot.get95thPercentile()));
    jsonGenerator.writeNumberField("p98", convertDuration(snapshot.get98thPercentile()));
    jsonGenerator.writeNumberField("p99", convertDuration(snapshot.get99thPercentile()));
    jsonGenerator.writeNumberField("p999", convertDuration(snapshot.get999thPercentile()));

    jsonGenerator.writeNumberField("count", timer.getCount());
    jsonGenerator.writeNumberField("m1_rate", convertRate(timer.getOneMinuteRate()));
    jsonGenerator.writeNumberField("m5_rate", convertRate(timer.getFiveMinuteRate()));
    jsonGenerator.writeNumberField("m15_rate", convertRate(timer.getFifteenMinuteRate()));
    jsonGenerator.writeNumberField("mean_rate", convertRate(timer.getMeanRate()));

    jsonGenerator.writeEndObject();/*from   w  ww.ja va  2s.  c o  m*/
    jsonGenerator.flush();
    addReportToBulkRequest(index, MetricElasticsearchTypes.TIMER, writer.toString());
}

From source file:org.emfjson.jackson.databind.ser.EcoreReferenceSerializer.java

@Override
public void serialize(EObject value, JsonGenerator jg, SerializerProvider serializers) throws IOException {
    final EObject parent = EMFContext.getParent(serializers);
    final Cache cache = EMFContext.getCache(serializers);
    final String href = getHRef(cache, parent, value);

    jg.writeStartObject();
    jg.writeStringField(info.getTypeProperty(), cache.getURI(value.eClass()));
    if (href == null) {
        jg.writeNullField(info.getProperty());
    } else {/*  ww w. j  a  v  a 2 s. c om*/
        jg.writeStringField(info.getProperty(), href);
    }
    jg.writeEndObject();
}