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

Introduction

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

Prototype

public final void writeObjectField(String fieldName, Object pojo) throws IOException, JsonProcessingException 

Source Link

Document

Convenience method for outputting a field entry ("member") that has contents of specific Java object as its value.

Usage

From source file:com.neoteric.starter.metrics.report.elastic.ElasticsearchReporter.java

private void checkForIndexTemplate() {
    try {//from ww  w. ja  v  a  2  s.c o  m
        HttpURLConnection connection = openConnection("/_template/metrics_template", "HEAD");
        connection.disconnect();
        boolean isTemplateMissing = connection.getResponseCode() == HttpURLConnection.HTTP_NOT_FOUND;

        // nothing there, lets create it
        if (isTemplateMissing) {
            LOGGER.debug("No metrics template found in elasticsearch. Adding...");
            HttpURLConnection putTemplateConnection = openConnection("/_template/metrics_template", "PUT");
            JsonGenerator json = new JsonFactory().createGenerator(putTemplateConnection.getOutputStream());
            json.writeStartObject();
            json.writeStringField("template", index + "*");
            json.writeObjectFieldStart("mappings");

            json.writeObjectFieldStart("_default_");
            json.writeObjectFieldStart("_all");
            json.writeBooleanField("enabled", false);
            json.writeEndObject();
            json.writeObjectFieldStart("properties");
            json.writeObjectFieldStart("name");
            json.writeObjectField("type", "string");
            json.writeObjectField("index", "not_analyzed");
            json.writeEndObject();
            json.writeEndObject();
            json.writeEndObject();

            json.writeEndObject();
            json.writeEndObject();
            json.flush();

            putTemplateConnection.disconnect();
            if (putTemplateConnection.getResponseCode() != HttpStatus.OK.value()) {
                LOGGER.error(
                        "Error adding metrics template to elasticsearch: {}/{}"
                                + putTemplateConnection.getResponseCode(),
                        putTemplateConnection.getResponseMessage());
            }
        }
        checkedForIndexTemplate = true;
    } catch (IOException e) {
        LOGGER.error("Error when checking/adding metrics template to elasticsearch", e);
    }
}

---

From source file:org.createnet.raptor.models.objects.serializer.RecordSetSerializer.java

@Override
public void serialize(RecordSet r, JsonGenerator jg, SerializerProvider sp) throws IOException {

    final Stream stream = r.getStream();
    ServiceObject obj = null;/*  w w w.jav a  2s. c  o  m*/

    if (stream != null) {
        obj = stream.getServiceObject();
    }

    jg.writeStartObject();

    jg.writeObjectFieldStart("channels");

    for (Map.Entry<String, IRecord> item : r.channels.entrySet()) {

        String channelName = item.getKey();
        IRecord channel = item.getValue();

        // enforce stream schema if available
        if (r.getStream() != null) {
            if (!r.getStream().channels.containsKey(channelName)) {
                // skip unmanaged field
                return;
            }
        }

        if (channel == null) {
            continue;
        }
        if (channel.getValue() == null) {
            continue;
        }

        jg.writeObjectField(channelName, channel.getValue());

        //            jg.writeObjectFieldStart(channelName);
        //            jg.writeObjectField("current-value", channel.getValue());
        //            jg.writeEndObject();

    }

    jg.writeEndObject();

    jg.writeNumberField("timestamp", r.getTimestampTime());

    // try to get a value
    if (r.userId == null && obj != null) {
        r.userId = obj.userId;
    }

    if (r.userId != null) {
        jg.writeStringField("userId", r.userId);
    }

    // try to get a value
    if (r.objectId == null && obj != null) {
        r.objectId = obj.id;
    }

    if (r.objectId != null) {
        jg.writeStringField("objectId", r.objectId);
    }

    // try to get a value
    if (r.streamId == null && stream != null) {
        r.streamId = stream.name;
    }

    if (r.streamId != null) {
        jg.writeStringField("streamId", r.streamId);
    }

    jg.writeEndObject();

}

---

From source file:com.strategicgains.hyperexpress.serialization.jackson.HalResourceSerializer.java

private void writeLinks(HalResource resource, boolean isEmbedded, JsonGenerator jgen)
        throws JsonGenerationException, IOException {
    List<Link> links = resource.getLinks();
    List<Namespace> namespaces = resource.getNamespaces();
    if (links.isEmpty() && (isEmbedded || namespaces.isEmpty()))
        return;/*from w  w w.j ava 2 s .com*/

    jgen.writeObjectFieldStart(LINKS);
    writeCuries(namespaces, isEmbedded, jgen);

    Map<String, List<HalLink>> linksByRel = indexLinksByRel(resource.getLinks());

    for (Entry<String, List<HalLink>> entry : linksByRel.entrySet()) {
        if (entry.getValue().size() == 1 && !resource.isMultipleLinks(entry.getKey())) // Write single link
        {
            HalLink link = entry.getValue().iterator().next();

            if (null == link.getTemplated()) {
                link.setTemplated(link.hasTemplate() ? true : null);
            }

            jgen.writeObjectField(entry.getKey(), link);
        } else // Write link array
        {
            jgen.writeArrayFieldStart(entry.getKey());

            for (HalLink link : entry.getValue()) {
                if (null == link.getTemplated()) {
                    link.setTemplated(link.hasTemplate() ? true : null);
                }

                jgen.writeObject(link);
            }

            jgen.writeEndArray();
        }

    }

    jgen.writeEndObject();
}

---

From source file:com.basho.riak.client.query.MapReduce.java

/**
 * @param jg//  w  w  w  . j a  va 2s . com
 */
private void writeMapReducePhases(JsonGenerator jg) throws IOException {
    int cnt = 0;
    synchronized (phases) {
        final int lastPhase = phases.size();
        for (MapReducePhase phase : phases) {
            cnt++;
            jg.writeStartObject();
            jg.writeFieldName(phase.getType().toString());
            jg.writeStartObject();

            switch (phase.getType()) {
            case MAP:
            case REDUCE:
                MapPhase mapPhase = (MapPhase) phase;
                FunctionToJson.newWriter(mapPhase.getPhaseFunction(), jg).write();
                if (mapPhase.getArg() != null) {
                    jg.writeObjectField("arg", mapPhase.getArg());
                }
                break;
            case LINK:
                jg.writeStringField("bucket", ((LinkPhase) phase).getBucket());
                jg.writeStringField("tag", ((LinkPhase) phase).getTag());
                break;
            }

            //the final phase results should be returned, unless specifically set otherwise
            if (cnt == lastPhase) {
                jg.writeBooleanField("keep", isKeepResult(true, phase.isKeep()));
            } else {
                jg.writeBooleanField("keep", isKeepResult(false, phase.isKeep()));
            }

            jg.writeEndObject();
            jg.writeEndObject();
        }
    }
}

---

From source file:org.elasticsearch.metrics.ElasticsearchReporter.java

/**
 * This index template is automatically applied to all indices which start with the index name
 * The index template simply configures the name not to be analyzed
 *///  w w  w .  jav  a2  s  . co m
private void checkForIndexTemplate() {
    try {
        HttpURLConnection connection = openConnection("/_template/metrics_template", "HEAD");
        if (connection == null) {
            LOGGER.error("Could not connect to any configured elasticsearch instances: {}",
                    Arrays.asList(hosts));
            return;
        }
        connection.disconnect();

        boolean isTemplateMissing = connection.getResponseCode() == HttpURLConnection.HTTP_NOT_FOUND;

        // nothing there, lets create it
        if (isTemplateMissing) {
            LOGGER.debug("No metrics template found in elasticsearch. Adding...");
            HttpURLConnection putTemplateConnection = openConnection("/_template/metrics_template", "PUT");
            if (putTemplateConnection == null) {
                LOGGER.error("Error adding metrics template to elasticsearch");
                return;
            }

            JsonGenerator json = new JsonFactory().createGenerator(putTemplateConnection.getOutputStream());
            json.writeStartObject();
            json.writeStringField("template", index + "*");
            json.writeObjectFieldStart("mappings");

            json.writeObjectFieldStart("_default_");
            json.writeObjectFieldStart("_all");
            json.writeBooleanField("enabled", false);
            json.writeEndObject();
            json.writeObjectFieldStart("properties");
            json.writeObjectFieldStart("name");
            json.writeObjectField("type", "string");
            json.writeObjectField("index", "not_analyzed");
            json.writeEndObject();
            json.writeEndObject();
            json.writeEndObject();

            json.writeEndObject();
            json.writeEndObject();
            json.flush();

            putTemplateConnection.disconnect();
            if (putTemplateConnection.getResponseCode() != 200) {
                LOGGER.error(
                        "Error adding metrics template to elasticsearch: {}/{}"
                                + putTemplateConnection.getResponseCode(),
                        putTemplateConnection.getResponseMessage());
            }
        }
        checkedForIndexTemplate = true;
    } catch (IOException e) {
        LOGGER.error("Error when checking/adding metrics template to elasticsearch", e);
    }
}

---

From source file:com.oneops.metrics.es.ElasticsearchReporter.java

/**
 * This index template is automatically applied to all indices which start with the index name
 * The index template simply configures the name not to be analyzed
 *///from   w w w  . j  a  v  a 2  s .c o m
private void checkForIndexTemplate() {
    try {
        HttpURLConnection connection = openConnection("/_template/metrics_template", "HEAD");
        if (connection == null) {
            LOGGER.error("Could not connect to any configured elasticsearch instances: {}",
                    Arrays.asList(hosts));
            return;
        }
        connection.disconnect();

        boolean isTemplateMissing = connection.getResponseCode() == HttpURLConnection.HTTP_NOT_FOUND;

        // nothing there, lets create it
        if (isTemplateMissing) {
            LOGGER.debug("No metrics template found in elasticsearch. Adding...");
            HttpURLConnection putTemplateConnection = openConnection("/_template/metrics_template", "PUT");
            JsonGenerator json = new JsonFactory().createGenerator(putTemplateConnection.getOutputStream());
            json.writeStartObject();
            json.writeStringField("template", index + "*");
            json.writeObjectFieldStart("mappings");

            json.writeObjectFieldStart("_default_");
            json.writeObjectFieldStart("_all");
            json.writeBooleanField("enabled", false);
            json.writeEndObject();
            json.writeObjectFieldStart("properties");
            json.writeObjectFieldStart("name");
            json.writeObjectField("type", "string");
            json.writeObjectField("index", "not_analyzed");
            json.writeEndObject();
            json.writeEndObject();
            json.writeEndObject();

            json.writeEndObject();
            json.writeEndObject();
            json.flush();

            putTemplateConnection.disconnect();
            if (putTemplateConnection.getResponseCode() != 200) {
                LOGGER.error(
                        "Error adding metrics template to elasticsearch: {}/{}"
                                + putTemplateConnection.getResponseCode(),
                        putTemplateConnection.getResponseMessage());
            }
        }
        checkedForIndexTemplate = true;
    } catch (IOException e) {
        LOGGER.error("Error when checking/adding metrics template to elasticsearch", e);
    }
}

---

From source file:net.logstash.logback.composite.loggingevent.ArgumentsJsonProvider.java

@Override
public void writeTo(JsonGenerator generator, ILoggingEvent event) throws IOException {

    Object[] args = event.getArgumentArray();

    if (args == null || args.length == 0) {
        return;// w w w . j av a 2 s.co  m
    }

    boolean hasWrittenFieldName = false;

    for (int argIndex = 0; argIndex < args.length; argIndex++) {

        Object arg = args[argIndex];

        if (arg instanceof StructuredArgument) {
            if (!hasWrittenFieldName && getFieldName() != null) {
                generator.writeObjectFieldStart(getFieldName());
                hasWrittenFieldName = true;
            }
            StructuredArgument structuredArgument = (StructuredArgument) arg;
            structuredArgument.writeTo(generator);
        } else if (includeNonStructuredArguments) {
            if (!hasWrittenFieldName && getFieldName() != null) {
                generator.writeObjectFieldStart(getFieldName());
                hasWrittenFieldName = true;
            }
            String fieldName = nonStructuredArgumentsFieldPrefix + argIndex;
            generator.writeObjectField(fieldName, arg);
        }
    }

    if (hasWrittenFieldName) {
        generator.writeEndObject();
    }
}

---

From source file:com.baidubce.services.bmr.BmrClient.java

/**
 * Add steps to a BMR cluster./*from w ww .  j  ava  2s. c  o m*/
 *
 * @param request containing the ID of target BMR cluster and several steps to be added.
 * @return The response containing a list of IDs of newly added steps.
 */
public AddStepsResponse addSteps(AddStepsRequest request) {
    checkNotNull(request, "request should not be null.");
    checkNotNull(request.getSteps(), "The parameter steps should not be null.");
    checkStringNotEmpty(request.getClusterId(), "The parameter clusterId should not be null or empty string.");

    StringWriter writer = new StringWriter();
    List<StepConfig> steps = request.getSteps();
    try {
        JsonGenerator jsonGenerator = JsonUtils.jsonGeneratorOf(writer);
        jsonGenerator.writeStartObject();
        jsonGenerator.writeArrayFieldStart("steps");
        for (StepConfig step : steps) {
            jsonGenerator.writeStartObject();
            if (step.getName() != null) {
                jsonGenerator.writeStringField("name", step.getName());
            }
            jsonGenerator.writeStringField("type", step.getType());
            jsonGenerator.writeStringField("actionOnFailure", step.getActionOnFailure());
            jsonGenerator.writeObjectFieldStart("properties");
            for (String propertyKey : step.getProperties().keySet()) {
                jsonGenerator.writeObjectField(propertyKey, step.getProperties().get(propertyKey));
            }
            jsonGenerator.writeEndObject();
            jsonGenerator.writeEndObject();
        }
        jsonGenerator.writeEndArray();
        jsonGenerator.writeEndObject();
        jsonGenerator.close();
    } catch (IOException e) {
        throw new BceClientException("Fail to generate json", e);
    }

    byte[] json = null;
    try {
        json = writer.toString().getBytes(DEFAULT_ENCODING);
    } catch (UnsupportedEncodingException e) {
        throw new BceClientException("Fail to get UTF-8 bytes", e);
    }

    InternalRequest internalRequest = this.createRequest(request, HttpMethodName.POST, CLUSTER,
            request.getClusterId(), STEP);
    internalRequest.addHeader(Headers.CONTENT_LENGTH, String.valueOf(json.length));
    internalRequest.addHeader(Headers.CONTENT_TYPE, "application/json");

    internalRequest.setContent(RestartableInputStream.wrap(json));

    if (request.getClientToken() != null) {
        internalRequest.addParameter("clientToken", request.getClientToken());
    }

    return this.invokeHttpClient(internalRequest, AddStepsResponse.class);
}

---

From source file:jp.classmethod.aws.brian.utils.TriggerSerializer.java

@Override
public void serialize(Trigger value, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonProcessingException {
    if (value == null) {
        jgen.writeNull();// ww  w.  j av  a2s . c  o m
        return;
    }

    jgen.writeStartObject();
    if (value.getKey() != null) {
        if (value.getKey().getGroup() != null)
            jgen.writeStringField("group", value.getKey().getGroup());
        if (value.getKey().getName() != null)
            jgen.writeStringField("name", value.getKey().getName());
    }
    if (value.getDescription() != null) {
        jgen.writeStringField("description", value.getDescription());
    }
    if (value.getStartTime() != null) {
        jgen.writeFieldName("startTime");
        provider.defaultSerializeDateValue(value.getStartTime(), jgen);
    }
    if (value.getEndTime() != null) {
        jgen.writeFieldName("endTime");
        provider.defaultSerializeDateValue(value.getEndTime(), jgen);
    }
    if (value.getNextFireTime() != null) {
        jgen.writeFieldName("nextFireTime");
        provider.defaultSerializeDateValue(value.getNextFireTime(), jgen);
    }
    if (value.getJobDataMap() != null) {
        jgen.writeObjectField("jobDataMap", value.getJobDataMap().getWrappedMap());
    }
    jgen.writeNumberField("misfireInstruction", value.getMisfireInstruction());
    jgen.writeNumberField("priority", value.getPriority());

    if (value instanceof CronTrigger) {
        CronTrigger cronTrigger = (CronTrigger) value;
        jgen.writeFieldName("cronEx");
        jgen.writeStartObject();
        if (cronTrigger.getCronExpression() != null) {
            jgen.writeStringField("cronExpression", cronTrigger.getCronExpression());
        }
        if (cronTrigger.getTimeZone() != null) {
            provider.defaultSerializeField("timeZone", cronTrigger.getTimeZone(), jgen);
        }
        jgen.writeEndObject();
    }
    if (value instanceof SimpleTrigger) {
        SimpleTrigger simpleTrigger = (SimpleTrigger) value;
        jgen.writeFieldName("simple");
        jgen.writeStartObject();
        jgen.writeNumberField("repeatInterval", simpleTrigger.getRepeatInterval());
        jgen.writeNumberField("repeatCount", simpleTrigger.getRepeatCount());
        jgen.writeNumberField("timesTriggered", simpleTrigger.getTimesTriggered());
        jgen.writeEndObject();
    }

    jgen.writeEndObject();
}

---

From source file:org.springframework.security.oauth2.common.OAuth2AccessTokenJackson2Serializer.java

@Override
public void serialize(OAuth2AccessToken token, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonGenerationException {
    jgen.writeStartObject();//from  w w w . j  a  va 2 s  .  c  o  m
    jgen.writeStringField(OAuth2AccessToken.ACCESS_TOKEN, token.getValue());
    jgen.writeStringField(OAuth2AccessToken.TOKEN_TYPE, token.getTokenType());
    OAuth2RefreshToken refreshToken = token.getRefreshToken();
    if (refreshToken != null) {
        jgen.writeStringField(OAuth2AccessToken.REFRESH_TOKEN, refreshToken.getValue());
    }
    Date expiration = token.getExpiration();
    if (expiration != null) {
        long now = System.currentTimeMillis();
        jgen.writeNumberField(OAuth2AccessToken.EXPIRES_IN, (expiration.getTime() - now) / 1000);
    }
    Set<String> scope = token.getScope();
    if (scope != null && !scope.isEmpty()) {
        StringBuffer scopes = new StringBuffer();
        for (String s : scope) {
            Assert.hasLength(s, "Scopes cannot be null or empty. Got " + scope + "");
            scopes.append(s);
            scopes.append(" ");
        }
        jgen.writeStringField(OAuth2AccessToken.SCOPE, scopes.substring(0, scopes.length() - 1));
    }
    Map<String, Object> additionalInformation = token.getAdditionalInformation();
    for (String key : additionalInformation.keySet()) {
        jgen.writeObjectField(key, additionalInformation.get(key));
    }
    jgen.writeEndObject();
}

---

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