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:eu.project.ttc.readers.TermSuiteJsonCasSerializer.java

private static void writeWordAnnotations(JsonGenerator jg, JCas jCas) throws IOException {
    jg.writeStartArray();/*from   w  w  w.  ja va2  s  .c  om*/
    FSIterator<Annotation> it = jCas.getAnnotationIndex(WordAnnotation.type).iterator();
    while (it.hasNext()) {
        WordAnnotation wa = (WordAnnotation) it.next();
        jg.writeStartObject();
        writeStringField(jg, F_CATEGORY, wa.getCategory());
        writeStringField(jg, F_LEMMA, wa.getLemma());
        writeStringField(jg, F_STEM, wa.getStem());
        writeStringField(jg, F_TAG, wa.getTag());
        writeStringField(jg, F_SUB_CATEGORY, wa.getSubCategory());
        writeStringField(jg, F_REGEX_LABEL, wa.getRegexLabel());
        writeStringField(jg, F_NUMBER, wa.getNumber());
        writeStringField(jg, F_GENDER, wa.getGender());
        writeStringField(jg, F_CASE, wa.getCase());
        writeStringField(jg, F_MOOD, wa.getMood());
        writeStringField(jg, F_TENSE, wa.getTense());
        writeStringField(jg, F_PERSON, wa.getPerson());
        writeStringField(jg, F_DEGREE, wa.getDegree());
        writeStringField(jg, F_FORMATION, wa.getFormation());
        writeStringField(jg, F_LABELS, wa.getLabels());
        writeOffsets(jg, wa);
        jg.writeEndObject();
    }
    jg.writeEndArray();
}

From source file:org.apache.orc.bench.convert.json.JsonWriter.java

static void printRow(JsonGenerator writer, VectorizedRowBatch batch, TypeDescription schema, int row)
        throws IOException {
    if (schema.getCategory() == TypeDescription.Category.STRUCT) {
        List<TypeDescription> fieldTypes = schema.getChildren();
        List<String> fieldNames = schema.getFieldNames();
        writer.writeStartObject();
        for (int c = 0; c < batch.cols.length; ++c) {
            writer.writeFieldName(fieldNames.get(c));
            printValue(writer, batch.cols[c], fieldTypes.get(c), row);
        }/*from w  ww  .j a v a  2  s .  c  o  m*/
        writer.writeEndObject();
    } else {
        printValue(writer, batch.cols[0], schema, row);
    }
}

From source file:org.apache.orc.bench.convert.json.JsonWriter.java

private static void printMap(JsonGenerator writer, MapColumnVector vector, TypeDescription schema, int row)
        throws IOException {
    writer.writeStartArray();/*from   www  .j av a  2 s .c  o  m*/
    TypeDescription keyType = schema.getChildren().get(0);
    TypeDescription valueType = schema.getChildren().get(1);
    int offset = (int) vector.offsets[row];
    for (int i = 0; i < vector.lengths[row]; ++i) {
        writer.writeStartObject();
        writer.writeFieldName("_key");
        printValue(writer, vector.keys, keyType, offset + i);
        writer.writeFieldName("_value");
        printValue(writer, vector.values, valueType, offset + i);
        writer.writeEndObject();
    }
    writer.writeEndArray();
}

From source file:com.microsoft.azure.storage.table.TableEntitySerializer.java

/**
 * Reserved for internal use. Writes an entity to the specified <code>JsonGenerator</code> as a JSON resource
 * //from  ww w  .  ja  va  2  s  .c  om
 * @param generator
 *            The <code>JsonGenerator</code> to write the entity to.
 * @param options
 *            The {@link TableRequestOptions} to use for serializing.
 * @param entity
 *            The instance implementing {@link TableEntity} to write to the output stream.
 * @param isTableEntry
 *            A flag indicating the entity is a reference to a table at the top level of the storage service when
 *            <code>true<code> and a reference to an entity within a table when <code>false</code>.
 * @param opContext
 *            An {@link OperationContext} object used to track the execution of the operation.
 * 
 * @throws StorageException
 *             if a Storage service error occurs.
 * @throws IOException
 *             if an error occurs while accessing the stream.
 */
private static void writeJsonEntity(final JsonGenerator generator, final TableRequestOptions options,
        final TableEntity entity, final boolean isTableEntry, final OperationContext opContext)
        throws StorageException, IOException {

    Map<String, EntityProperty> properties = getPropertiesFromDictionary(entity, options, opContext);

    // start object
    generator.writeStartObject();

    if (!isTableEntry) {
        Utility.assertNotNull(TableConstants.PARTITION_KEY, entity.getPartitionKey());
        Utility.assertNotNull(TableConstants.ROW_KEY, entity.getRowKey());
        Utility.assertNotNull(TableConstants.TIMESTAMP, entity.getTimestamp());

        // PartitionKey
        generator.writeStringField(TableConstants.PARTITION_KEY, entity.getPartitionKey());

        // RowKey
        generator.writeStringField(TableConstants.ROW_KEY, entity.getRowKey());

        // Timestamp
        generator.writeStringField(TableConstants.TIMESTAMP, Utility.getJavaISO8601Time(entity.getTimestamp()));
    }

    for (final Entry<String, EntityProperty> ent : properties.entrySet()) {
        if (ent.getKey().equals(TableConstants.PARTITION_KEY) || ent.getKey().equals(TableConstants.ROW_KEY)
                || ent.getKey().equals(TableConstants.TIMESTAMP) || ent.getKey().equals("Etag")) {
            continue;
        }

        EntityProperty currProp = ent.getValue();
        if (currProp.getEdmType().mustAnnotateType()) {
            final String edmTypeString = currProp.getEdmType().toString();

            // property type
            generator.writeStringField(ent.getKey() + ODataConstants.ODATA_TYPE_SUFFIX, edmTypeString);

            // property key and value
            generator.writeStringField(ent.getKey(), ent.getValue().getValueAsString());
        } else if (currProp.getEdmType() == EdmType.DOUBLE && currProp.getIsNull() == false) {
            final String edmTypeString = currProp.getEdmType().toString();
            final Double value = currProp.getValueAsDouble();

            // property type, if needed
            if (value.equals(Double.POSITIVE_INFINITY) || value.equals(Double.NEGATIVE_INFINITY)
                    || value.equals(Double.NaN)) {
                generator.writeStringField(ent.getKey() + ODataConstants.ODATA_TYPE_SUFFIX, edmTypeString);

                // property key and value
                generator.writeStringField(ent.getKey(), ent.getValue().getValueAsString());
            } else {
                writeJsonProperty(generator, ent);
            }

        } else {
            writeJsonProperty(generator, ent);
        }
    }

    // end object
    generator.writeEndObject();
}

From source file:io.protostuff.JsonIOUtil.java

/**
 * Serializes the {@code message} into a JsonGenerator using the given {@code schema}.
 *///www  .  j ava 2s .co m
public static <T> void writeTo(JsonGenerator generator, T message, Schema<T> schema, boolean numeric)
        throws IOException {
    generator.writeStartObject();

    final JsonOutput output = new JsonOutput(generator, numeric, schema);
    schema.writeTo(output, message);
    if (output.isLastRepeated())
        generator.writeEndArray();

    generator.writeEndObject();
}

From source file:com.netflix.hystrix.serial.SerialHystrixDashboardData.java

private static void writeThreadPoolMetrics(final HystrixThreadPoolMetrics threadPoolMetrics, JsonGenerator json)
        throws IOException {
    HystrixThreadPoolKey key = threadPoolMetrics.getThreadPoolKey();

    json.writeStartObject();

    json.writeStringField("type", "HystrixThreadPool");
    json.writeStringField("name", key.name());
    json.writeNumberField("currentTime", System.currentTimeMillis());

    json.writeNumberField("currentActiveCount", threadPoolMetrics.getCurrentActiveCount().intValue());
    json.writeNumberField("currentCompletedTaskCount",
            threadPoolMetrics.getCurrentCompletedTaskCount().longValue());
    json.writeNumberField("currentCorePoolSize", threadPoolMetrics.getCurrentCorePoolSize().intValue());
    json.writeNumberField("currentLargestPoolSize", threadPoolMetrics.getCurrentLargestPoolSize().intValue());
    json.writeNumberField("currentMaximumPoolSize", threadPoolMetrics.getCurrentMaximumPoolSize().intValue());
    json.writeNumberField("currentPoolSize", threadPoolMetrics.getCurrentPoolSize().intValue());
    json.writeNumberField("currentQueueSize", threadPoolMetrics.getCurrentQueueSize().intValue());
    json.writeNumberField("currentTaskCount", threadPoolMetrics.getCurrentTaskCount().longValue());
    safelyWriteNumberField(json, "rollingCountThreadsExecuted", new Func0<Long>() {
        @Override/*from  www .j a va2 s. c  o  m*/
        public Long call() {
            return threadPoolMetrics.getRollingCount(HystrixEventType.ThreadPool.EXECUTED);
        }
    });
    json.writeNumberField("rollingMaxActiveThreads", threadPoolMetrics.getRollingMaxActiveThreads());
    safelyWriteNumberField(json, "rollingCountCommandRejections", new Func0<Long>() {
        @Override
        public Long call() {
            return threadPoolMetrics.getRollingCount(HystrixEventType.ThreadPool.REJECTED);
        }
    });

    json.writeNumberField("propertyValue_queueSizeRejectionThreshold",
            threadPoolMetrics.getProperties().queueSizeRejectionThreshold().get());
    json.writeNumberField("propertyValue_metricsRollingStatisticalWindowInMilliseconds",
            threadPoolMetrics.getProperties().metricsRollingStatisticalWindowInMilliseconds().get());

    json.writeNumberField("reportingHosts", 1); // this will get summed across all instances in a cluster

    json.writeEndObject();
}

From source file:com.attribyte.essem.ESReporter.java

static final void generateCounter(final JsonGenerator generator, final ReportProtos.EssemReport.Counter counter,
        final String application, final String host, final String instance, final long timestamp)
        throws IOException {
    generator.writeStartObject();
    writeStringField(generator, Fields.APPLICATION_FIELD, application);
    writeStringField(generator, Fields.HOST_FIELD, host);
    writeStringField(generator, Fields.INSTANCE_FIELD, instance);
    writeStringField(generator, Fields.NAME_FIELD, counter.getName().trim());
    generator.writeNumberField(Fields.COUNT_FIELD, counter.getCount());
    generator.writeNumberField(Fields.TIMESTAMP_FIELD, timestamp);
    generator.writeEndObject();//from   www. j  av  a 2 s . c o  m
    generator.flush();
}

From source file:com.attribyte.essem.ESReporter.java

static final void generateMeter(final JsonGenerator generator, final ReportProtos.EssemReport.Meter meter,
        final String application, final String host, final String instance, final long timestamp)
        throws IOException {

    generator.writeStartObject();
    writeStringField(generator, Fields.APPLICATION_FIELD, application);
    writeStringField(generator, Fields.HOST_FIELD, host);
    writeStringField(generator, Fields.INSTANCE_FIELD, instance);
    writeStringField(generator, Fields.NAME_FIELD, meter.getName().trim());
    generator.writeNumberField(Fields.ONE_MINUTE_RATE_FIELD, meter.getOneMinuteRate());
    generator.writeNumberField(Fields.FIVE_MINUTE_RATE_FIELD, meter.getFiveMinuteRate());
    generator.writeNumberField(Fields.FIFTEEN_MINUTE_RATE_FIELD, meter.getFifteenMinuteRate());
    generator.writeNumberField(Fields.MEAN_RATE_FIELD, meter.getMeanRate());
    generator.writeNumberField(Fields.COUNT_FIELD, meter.getCount());
    generator.writeNumberField(Fields.TIMESTAMP_FIELD, timestamp);
    generator.writeEndObject();/*from  w  ww . j  a v  a 2  s  .  co  m*/
    generator.flush();
}

From source file:com.attribyte.essem.ESReporter.java

static final void generateGauge(final JsonGenerator generator, final ReportProtos.EssemReport.Gauge gauge,
        final String application, final String host, final String instance, final long timestamp)
        throws IOException {

    generator.writeStartObject();
    writeStringField(generator, Fields.APPLICATION_FIELD, application);
    writeStringField(generator, Fields.HOST_FIELD, host);
    writeStringField(generator, Fields.INSTANCE_FIELD, instance);
    writeStringField(generator, Fields.NAME_FIELD, gauge.getName().trim());
    if (gauge.hasValue()) {
        generator.writeNumberField(Fields.VALUE_FIELD, gauge.getValue());
    } else if (gauge.hasComment()) {
        generator.writeNumberField(Fields.VALUE_FIELD, 0.0);
        writeStringField(generator, Fields.COMMENT_FIELD, gauge.getComment());
    } else {//from   ww w . j a  v a  2 s. com
        generator.writeNullField(Fields.VALUE_FIELD);
    }

    generator.writeNumberField(Fields.TIMESTAMP_FIELD, timestamp);
    generator.writeEndObject();
    generator.flush();
}

From source file:com.attribyte.essem.ESReporter.java

static final void generateTimer(final JsonGenerator generator, final ReportProtos.EssemReport.Timer timer,
        final String application, final String host, final String instance, final long timestamp)
        throws IOException {

    generator.writeStartObject();
    writeStringField(generator, Fields.APPLICATION_FIELD, application);
    writeStringField(generator, Fields.HOST_FIELD, host);
    writeStringField(generator, Fields.INSTANCE_FIELD, instance);
    writeStringField(generator, Fields.NAME_FIELD, timer.getName().trim());
    generator.writeNumberField(Fields.ONE_MINUTE_RATE_FIELD, timer.getOneMinuteRate());
    generator.writeNumberField(Fields.FIVE_MINUTE_RATE_FIELD, timer.getFiveMinuteRate());
    generator.writeNumberField(Fields.FIFTEEN_MINUTE_RATE_FIELD, timer.getFifteenMinuteRate());
    generator.writeNumberField(Fields.MEAN_RATE_FIELD, timer.getMeanRate());
    generator.writeNumberField(Fields.COUNT_FIELD, timer.getCount());
    generator.writeNumberField(Fields.MAX_FIELD, timer.getMax());
    generator.writeNumberField(Fields.MIN_FIELD, timer.getMin());
    generator.writeNumberField(Fields.MEAN_FIELD, timer.getMean());
    generator.writeNumberField(Fields.P50_FIELD, timer.getMedian());
    generator.writeNumberField(Fields.P75_FIELD, timer.getPercentile75());
    generator.writeNumberField(Fields.P95_FIELD, timer.getPercentile95());
    generator.writeNumberField(Fields.P98_FIELD, timer.getPercentile98());
    generator.writeNumberField(Fields.P99_FIELD, timer.getPercentile99());
    generator.writeNumberField(Fields.P999_FIELD, timer.getPercentile999());
    generator.writeNumberField(Fields.STD_FIELD, timer.getStd());
    generator.writeNumberField(Fields.TIMESTAMP_FIELD, timestamp);
    generator.writeEndObject();//from ww  w .  ja v a  2 s  .  c o m
    generator.flush();
}