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

Introduction

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

Prototype

public abstract void writeRawValue(String text) throws IOException, JsonGenerationException;

Source Link

Document

Method that will force generator to copy input text verbatim without any modifications, but assuming it must constitute a single legal JSON value (number, string, boolean, null, Array or List).

Usage

From source file:com.arpnetworking.logback.serialization.ArrayOfJsonSerialziationStrategy.java

/**
 * Serialize an event.//from   www .j  av a 2 s  . c o m
 *
 * @param event The event.
 * @param eventName The event name.
 * @param keys The message keys.
 * @param jsonValues The message json values.
 * @return Serialization of message as a <code>String</code>.
 */
public String serialize(final ILoggingEvent event, final String eventName, final String[] keys,
        final String[] jsonValues) {
    final StringWriter jsonWriter = new StringWriter();
    try {
        final JsonGenerator jsonGenerator = _jsonFactory.createGenerator(jsonWriter);
        // Start wrapper
        startStenoWrapper(event, eventName, jsonGenerator, _objectMapper);

        // Write event data
        jsonGenerator.writeObjectFieldStart("data");
        final int argsLength = jsonValues == null ? 0 : jsonValues.length;
        if (keys != null) {
            for (int i = 0; i < keys.length; i++) {
                if (i >= argsLength) {
                    jsonGenerator.writeObjectField(keys[i], null);
                } else {
                    jsonGenerator.writeFieldName(keys[i]);
                    jsonGenerator.writeRawValue(jsonValues[i]);
                }
            }
        }
        jsonGenerator.writeEndObject(); // End 'data' field

        // Output throwable
        writeThrowable(event.getThrowableProxy(), jsonGenerator, _objectMapper);

        // End wrapper
        endStenoWrapper(event, eventName, jsonGenerator, _objectMapper);
    } catch (final IOException e) {
        return "Unknown exception: " + e.getMessage();
    }

    return jsonWriter.toString();
}

---

From source file:de.fraunhofer.iosb.ilt.sta.serialize.EntitySerializer.java

protected void serializeFieldCustomized(Entity entity, JsonGenerator gen, BeanPropertyDefinition property,
        List<BeanPropertyDefinition> properties, CustomSerialization annotation) throws Exception {
    // check if encoding field is present in current bean
    // get calue//  www  .j ava  2  s  . c o  m
    // call CustomSerializationManager
    Optional<BeanPropertyDefinition> encodingProperty = properties.stream()
            .filter(p -> p.getName().equals(annotation.encoding())).findFirst();
    if (!encodingProperty.isPresent()) {
        // TODO use more specific exception type
        throw new Exception("can not serialize instance of class '" + entity.getClass() + "'! \n"
                + "Reason: trying to use custom serialization for field '" + property.getName()
                + "' but field '" + annotation.encoding() + "' specifying enconding is not present!");
    }
    Object value = encodingProperty.get().getAccessor().getValue(entity);
    String encodingType = null;
    if (value != null) {
        encodingType = value.toString();
    }
    String customJson = CustomSerializationManager.getInstance().getSerializer(encodingType)
            .serialize(property.getAccessor().getValue(entity));
    if (customJson != null && !customJson.isEmpty()) {
        gen.writeFieldName(property.getName());
        gen.writeRawValue(customJson);
    }
}

---

From source file:org.apache.flink.runtime.jobgraph.jsonplan.JsonPlanGenerator.java

public static String generatePlan(JobGraph jg) {
    try {/*w w  w .j a  v  a2s  .  c  o  m*/
        final StringWriter writer = new StringWriter(1024);

        final JsonFactory factory = new JsonFactory();
        final JsonGenerator gen = factory.createGenerator(writer);

        // start of everything
        gen.writeStartObject();
        gen.writeStringField("jid", jg.getJobID().toString());
        gen.writeStringField("name", jg.getName());
        gen.writeArrayFieldStart("nodes");

        // info per vertex
        for (JobVertex vertex : jg.getVertices()) {

            String operator = vertex.getOperatorName() != null ? vertex.getOperatorName() : NOT_SET;

            String operatorDescr = vertex.getOperatorDescription() != null ? vertex.getOperatorDescription()
                    : NOT_SET;

            String optimizerProps = vertex.getResultOptimizerProperties() != null
                    ? vertex.getResultOptimizerProperties()
                    : EMPTY;

            String description = vertex.getOperatorPrettyName() != null ? vertex.getOperatorPrettyName()
                    : vertex.getName();

            // make sure the encoding is HTML pretty
            description = StringEscapeUtils.escapeHtml4(description);
            description = description.replace("\n", "<br/>");
            description = description.replace("\\", "&#92;");

            operatorDescr = StringEscapeUtils.escapeHtml4(operatorDescr);
            operatorDescr = operatorDescr.replace("\n", "<br/>");

            gen.writeStartObject();

            // write the core properties
            gen.writeStringField("id", vertex.getID().toString());
            gen.writeNumberField("parallelism", vertex.getParallelism());
            gen.writeStringField("operator", operator);
            gen.writeStringField("operator_strategy", operatorDescr);
            gen.writeStringField("description", description);

            if (!vertex.isInputVertex()) {
                // write the input edge properties
                gen.writeArrayFieldStart("inputs");

                List<JobEdge> inputs = vertex.getInputs();
                for (int inputNum = 0; inputNum < inputs.size(); inputNum++) {
                    JobEdge edge = inputs.get(inputNum);
                    if (edge.getSource() == null) {
                        continue;
                    }

                    JobVertex predecessor = edge.getSource().getProducer();

                    String shipStrategy = edge.getShipStrategyName();
                    String preProcessingOperation = edge.getPreProcessingOperationName();
                    String operatorLevelCaching = edge.getOperatorLevelCachingDescription();

                    gen.writeStartObject();
                    gen.writeNumberField("num", inputNum);
                    gen.writeStringField("id", predecessor.getID().toString());

                    if (shipStrategy != null) {
                        gen.writeStringField("ship_strategy", shipStrategy);
                    }
                    if (preProcessingOperation != null) {
                        gen.writeStringField("local_strategy", preProcessingOperation);
                    }
                    if (operatorLevelCaching != null) {
                        gen.writeStringField("caching", operatorLevelCaching);
                    }

                    gen.writeStringField("exchange", edge.getSource().getResultType().name().toLowerCase());

                    gen.writeEndObject();
                }

                gen.writeEndArray();
            }

            // write the optimizer properties
            gen.writeFieldName("optimizer_properties");
            gen.writeRawValue(optimizerProps);

            gen.writeEndObject();
        }

        // end of everything
        gen.writeEndArray();
        gen.writeEndObject();

        gen.close();

        return writer.toString();
    } catch (Exception e) {
        throw new RuntimeException("Failed to generate plan", e);
    }
}

---

• «
• 1
• 2
• 3
• »