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

Introduction

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

Prototype

public abstract void writeNull() throws IOException, JsonGenerationException;

Source Link

Document

Method for outputting literal Json null value.

Usage

From source file:io.debezium.document.JacksonWriter.java

protected void writeValue(Value value, JsonGenerator generator) throws IOException {
    switch (value.getType()) {
    case NULL:/*from  ww  w  .  ja v a2  s.co  m*/
        generator.writeNull();
        break;
    case STRING:
        generator.writeString(value.asString());
        break;
    case BOOLEAN:
        generator.writeBoolean(value.asBoolean());
        break;
    case BINARY:
        generator.writeBinary(value.asBytes());
        break;
    case INTEGER:
        generator.writeNumber(value.asInteger());
        break;
    case LONG:
        generator.writeNumber(value.asLong());
        break;
    case FLOAT:
        generator.writeNumber(value.asFloat());
        break;
    case DOUBLE:
        generator.writeNumber(value.asDouble());
        break;
    case BIG_INTEGER:
        generator.writeNumber(value.asBigInteger());
        break;
    case DECIMAL:
        generator.writeNumber(value.asBigDecimal());
        break;
    case DOCUMENT:
        writeDocument(value.asDocument(), generator);
        break;
    case ARRAY:
        writeArray(value.asArray(), generator);
        break;
    }
}

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

@Override
public void serialize(MESSAGE_TYPE_PRESENTATION type, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonProcessingException {
    if (type != null) {
        jgen.writeObject(LocaleString.builder().en(type.getText())
                .locale(McObjectManager.getMcLocale().getString(type.name())).build());
    } else {//from   w  w  w  .jav  a 2s  . com
        jgen.writeNull();
    }
}

From source file:com.cloudera.exhibit.server.json.ExhibitSerializer.java

private void serializeObsArray(Obs obs, ObsDescriptor desc, JsonGenerator gen) throws IOException {
    for (int i = 0; i < desc.size(); i++) {
        ObsDescriptor.Field f = desc.get(i);
        Object value = obs.get(i);
        if (value == null) {
            gen.writeNull();
        } else {/*from  w  ww .j  a  v a 2 s .co m*/
            switch (f.type) {
            case STRING:
                gen.writeString(value.toString());
                break;
            case BOOLEAN:
                gen.writeBoolean((Boolean) value);
                break;
            case INTEGER:
                gen.writeNumber(((Number) value).intValue());
                break;
            case FLOAT:
                gen.writeNumber(((Number) value).floatValue());
                break;
            case DOUBLE:
                gen.writeNumber(((Number) value).doubleValue());
                break;
            case LONG:
                gen.writeNumber(((Number) value).longValue());
                break;
            default:
                throw new UnsupportedOperationException("Unknown type for field: " + f);
            }
        }
    }
}

From source file:org.dbrain.data.jackson.serializers.JsonBigIntegerSerializer.java

@Override
public void serialize(BigInteger value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
    if (value != null) {
        if (value.compareTo(MIN_VALUE) >= 0 && value.compareTo(MAX_VALUE) <= 0) {
            jgen.writeNumber(value);//from  w w w  .j a v  a 2  s .com
        } else {
            jgen.writeString(value.toString());
        }
    } else {
        jgen.writeNull();
    }
}

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

@Override
public void serialize(final MinorTickInterval value, final JsonGenerator jgen,
        final SerializerProvider provider) throws IOException, JsonProcessingException {
    if (value.getAuto()) {
        jgen.writeString("auto");
    } else if (value.getInterval() != null) {
        jgen.writeNumber(value.getInterval().doubleValue());
    } else if (value.isNull()) {
        jgen.writeNull();
    } else {/*w w  w.  j  av  a  2 s  .  co  m*/
        throw new IllegalStateException("Invalid state of TickInterval: " + value);
    }

}

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

@Override
public void serialize(GatewayTable gatewayTable, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonProcessingException {
    if (gatewayTable != null) {
        RestUtils.getObjectMapper().writeValue(jgen, GatewayUtils.getGateway(gatewayTable));
    } else {//from   ww  w. j a va 2  s .c o  m
        jgen.writeNull();
    }
}

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

@Override
public void serialize(OperationTable operationTable, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonProcessingException {
    if (operationTable != null) {
        RestUtils.getObjectMapper().writeValue(jgen, OperationUtils.getOperation(operationTable));
    } else {/*from  w ww . j av a 2  s.  co  m*/
        jgen.writeNull();
    }

}

From source file:org.dbrain.data.jackson.serializers.JsonLongSerializer.java

@Override
public void serialize(Number value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
    if (value != null) {
        long longValue = value.longValue();
        if (longValue >= MIN_VALUE && longValue <= MAX_VALUE) {
            jgen.writeNumber(longValue);
        } else {/*ww w . ja v a2s  . c  o  m*/
            jgen.writeString(value.toString());
        }
    } else {
        jgen.writeNull();
    }
}

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

@Override
public void serialize(ExternalServerTable externalServerTable, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonProcessingException {
    if (externalServerTable != null) {
        RestUtils.getObjectMapper().writeValue(jgen,
                ExternalServerUtils.getExternalServer(externalServerTable));
    } else {//from  www .ja  va2s . com
        jgen.writeNull();
    }
}

From source file:com.streamsets.datacollector.bundles.content.SdcInfoContentGenerator.java

private void writeObject(JsonGenerator jg, Object value) throws IOException {
    if (value == null) {
        jg.writeNull();
    } else {//ww  w. ja va  2 s.c o  m
        Class<?> c = value.getClass();
        if (c.isArray()) {
            jg.writeStartArray();
            int len = Array.getLength(value);
            for (int j = 0; j < len; j++) {
                Object item = Array.get(value, j);
                writeObject(jg, item);
            }
            jg.writeEndArray();
        } else if (value instanceof Number) {
            Number n = (Number) value;
            if (value instanceof Double && (((Double) value).isInfinite() || ((Double) value).isNaN())) {
                jg.writeString(n.toString());
            } else {
                jg.writeNumber(n.toString());
            }
        } else if (value instanceof Boolean) {
            Boolean b = (Boolean) value;
            jg.writeBoolean(b);
        } else if (value instanceof CompositeData) {
            CompositeData cds = (CompositeData) value;
            CompositeType comp = cds.getCompositeType();
            Set<String> keys = comp.keySet();
            jg.writeStartObject();
            for (String key : keys) {
                writeAttribute(jg, key, cds.get(key));
            }
            jg.writeEndObject();
        } else if (value instanceof TabularData) {
            TabularData tds = (TabularData) value;
            jg.writeStartArray();
            for (Object entry : tds.values()) {
                writeObject(jg, entry);
            }
            jg.writeEndArray();
        } else if (value instanceof GaugeValue) {
            ((GaugeValue) value).serialize(jg);
        } else {
            jg.writeString(value.toString());
        }
    }
}