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

Introduction

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

Prototype

public abstract void writeString(SerializableString text) throws IOException, JsonGenerationException;

Source Link

Document

Method similar to #writeString(String) , but that takes SerializableString which can make this potentially more efficient to call as generator may be able to reuse quoted and/or encoded representation.

Usage

From source file:org.cloudcoder.dataanalysis.ProgsnapExport.java

private void writeJsonFieldValue(JsonGenerator jg, Object value) throws IOException {
    if (value instanceof String) {
        jg.writeString((String) value);
    } else if (value instanceof Integer) {
        jg.writeNumber(((Integer) value).intValue());
    } else if (value instanceof Long) {
        jg.writeNumber(((Long) value).longValue());
    } else if (value instanceof Double) {
        jg.writeNumber(((Double) value).doubleValue());
    } else if (value instanceof Map) {
        jg.writeStartObject();/*from   w  ww. j  a  va 2  s.c  o m*/
        for (Map.Entry<?, ?> entry : ((Map<?, ?>) value).entrySet()) {
            jg.writeFieldName(entry.getKey().toString());
            writeJsonFieldValue(jg, entry.getValue());
        }
        jg.writeEndObject();
    } else if (value instanceof Boolean) {
        jg.writeBoolean(((Boolean) value).booleanValue());
    } else {
        throw new IllegalArgumentException(
                "Don't know how to encode " + value.getClass().getSimpleName() + " as JSON value");
    }
}

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From source file:org.jongo.query.BsonQueryFactoryTest.java

@Test
public void canHandlePOJOSerializedAsString() throws Exception {

    Mapping mapping = new Mapping.Builder().addSerializer(Friend.class, new JsonSerializer<Friend>() {

        @Override/*from  w  ww.ja  v a  2 s  . c  om*/
        public void serialize(Friend friend, JsonGenerator jgen, SerializerProvider provider)
                throws IOException {
            jgen.writeString(friend.getName());
        }
    }).build();
    QueryFactory customFactory = new BsonQueryFactory(new JacksonEngine(mapping));

    DBObject query = customFactory.createQuery("{friend:#}", new Friend("Robert")).toDBObject();

    assertThat(query.get("friend")).isEqualTo("Robert");
}

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From source file:be.dnsbelgium.rdap.jackson.ContactSerializer.java

@Override
public void serialize(Contact contact, JsonGenerator jsonGenerator, SerializerProvider serializerProvider)
        throws IOException {
    jsonGenerator.writeStartArray();//from   w w w  .j av  a2s  . c om
    // start write version
    jsonGenerator.writeStartArray();
    jsonGenerator.writeString("version");
    jsonGenerator.writeStartObject();
    jsonGenerator.writeEndObject();
    jsonGenerator.writeString("text");
    jsonGenerator.writeString("4.0");
    jsonGenerator.writeEndArray();
    // end write version
    for (Contact.Property property : contact.getProperties()) {
        // start write property
        jsonGenerator.writeStartArray();
        // start write property name
        String key = (property.getGroup() == null) ? property.getName()
                : property.getGroup() + "." + property.getName();
        jsonGenerator.writeString(property.getName().toLowerCase(Locale.ENGLISH));
        // end write property name
        // start write property parameters
        jsonGenerator.writeStartObject();
        if (property.getGroup() != null) {
            jsonGenerator.writeFieldName("group");
            jsonGenerator.writeString(property.getGroup());
        }
        if (property.getParameters() != null) {

            Iterator<String> it = property.getParameters().keys();
            while (it.hasNext()) {
                String k = it.next();
                if (k.equalsIgnoreCase("value")) {
                    continue;
                }
                Set<String> values = property.getParameters().get(k);
                if (values.size() == 0) {
                    // no parameters for this property, skip this step
                    continue;
                }
                jsonGenerator.writeFieldName(k.toLowerCase(Locale.ENGLISH));
                if (values.size() == 1) {
                    jsonGenerator.writeString(values.toArray(new String[values.size()])[0]);
                    continue;
                }
                // start write all property parameter values (array)
                jsonGenerator.writeStartArray();
                for (String str : property.getParameters().get(k)) {
                    jsonGenerator.writeString(str);
                }
                jsonGenerator.writeEndArray();
                // end write all property parameter values (array)

            }
        }
        jsonGenerator.writeEndObject();
        // end write property parameters
        // start write property type
        String value = "text";
        if (property.getParameters() != null) {
            Set<String> types = property.getParameters().get("VALUE");
            if (types != null) {
                value = types.iterator().next();
            }
        }
        jsonGenerator.writeString(value);
        // end write property type
        // start write property value
        JsonSerializer s = serializerProvider.findValueSerializer(property.getValue().getClass(), null);
        s.serialize(property.getValue(), jsonGenerator, serializerProvider);
        // end write property value
        jsonGenerator.writeEndArray();
        // end write property
    }
    jsonGenerator.writeEndArray();
}

---

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

protected void writeValue(Value value, JsonGenerator generator) throws IOException {
    switch (value.getType()) {
    case NULL:/*from  w w  w. jav 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:nl.talsmasoftware.enumerables.support.json.jackson2.EnumerableSerializer.java

@Override
public void serialize(Enumerable value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
    if (value == null) {
        jgen.writeNull();/*from   w  ww  .  j ava  2 s  .c  om*/
    } else if (serializationMethod.serializeAsJsonObject(value.getClass())) {
        serializeObject(value, jgen, provider.getConfig());
    } else {
        jgen.writeString(Enumerable.print(value));
    }
}

---

From source file:DataTools.ConvertObjectToJson.java

private void addCustomSerializing(ObjectMapper mapper) {
    //custom serializer to help parsing dates
    class dateSerializer extends JsonSerializer<DateTime> {
        @Override//from w w  w  . ja  va 2  s  .  c o m
        public void serialize(DateTime dateTime, JsonGenerator jsonGenerator,
                SerializerProvider serializerProvider) throws IOException {
            jsonGenerator.writeString(cleanupDate(dateTime));
        }
    }

    //custom serializer to help parsing dates
    class zoneDateSerializer extends JsonSerializer<ZonedDateTime> {
        @Override
        public void serialize(ZonedDateTime dateTime, JsonGenerator jsonGenerator,
                SerializerProvider serializerProvider) throws IOException {
            jsonGenerator.writeString(cleanupDate(dateTime));
        }
    }

    class utilDateSerializer extends JsonSerializer<Date> {
        @Override
        public void serialize(Date dateTime, JsonGenerator jsonGenerator, SerializerProvider serializerProvider)
                throws IOException {
            jsonGenerator.writeString(dateTime.toString());
        }
    }

    class JsonObjectSerializer extends JsonSerializer<JSONObject> {
        @Override
        public void serialize(JSONObject jsonObject, JsonGenerator jsonGenerator,
                SerializerProvider serializerProvider) throws IOException, JsonProcessingException {
            jsonGenerator.writeString(jsonObject.toString());
        }
    }
    class JsonArraySerializer extends JsonSerializer<JSONArray> {
        @Override
        public void serialize(JSONArray jsonArray, JsonGenerator jsonGenerator,
                SerializerProvider serializerProvider) throws IOException, JsonProcessingException {
            jsonGenerator.writeString(jsonArray.toString());
        }
    }
    class StorageSerializer extends JsonSerializer<Storage> {
        @Override
        public void serialize(Storage storage, JsonGenerator jsonGenerator,
                SerializerProvider serializerProvider) throws IOException, JsonProcessingException {
            jsonGenerator.writeString(storage.toString());
        }
    }

    //setup new serializer
    SimpleModule simpleModule = new SimpleModule();
    simpleModule.addSerializer(DateTime.class, new dateSerializer());
    simpleModule.addSerializer(ZonedDateTime.class, new zoneDateSerializer());
    simpleModule.addSerializer(Date.class, new utilDateSerializer());
    simpleModule.addSerializer(JSONObject.class, new JsonObjectSerializer());
    simpleModule.addSerializer(JSONArray.class, new JsonArraySerializer());
    simpleModule.addSerializer(Storage.class, new StorageSerializer());
    mapper.registerModule(simpleModule);
}

---

From source file:org.killbill.billing.plugin.meter.timeline.consumer.TimelineChunkDecoded.java

@JsonValue
@Override/*from w  w w.j a va2  s .co m*/
public String toString() {
    try {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final JsonGenerator generator = objectMapper.getJsonFactory().createJsonGenerator(out);
        generator.writeStartObject();

        generator.writeFieldName("metric");
        generator.writeNumber(chunk.getMetricId());

        generator.writeFieldName("decodedSamples");
        generator.writeString(getDecodedSamples());

        generator.writeEndObject();
        generator.close();
        return out.toString();
    } catch (IOException e) {
        log.error("IOException in toString()", e);
    }

    return null;
}

---

From source file:io.gravitee.definition.jackson.datatype.services.healthcheck.ser.ExpectationSerializer.java

@Override
public void serialize(Expectation expectation, JsonGenerator jgen, SerializerProvider provider)
        throws IOException {
    jgen.writeStartObject();// w w w.  ja  v a 2s.  c  om

    jgen.writeArrayFieldStart("assertions");
    if (expectation.getAssertions() != null && !expectation.getAssertions().isEmpty()) {
        expectation.getAssertions().forEach(assertion -> {
            try {
                jgen.writeString(assertion);
            } catch (IOException e) {
                e.printStackTrace();
            }
        });
    } else {
        jgen.writeString(Expectation.DEFAULT_ASSERTION);
    }

    jgen.writeEndArray();

    jgen.writeEndObject();
}

---

From source file:org.brutusin.json.impl.JacksonCodec.java

@Override
public void registerStringFormat(Class clazz, String format) {
    this.schemaFactory.registerStringFormat(clazz, format);
    SimpleModule testModule = new SimpleModule("json-provider-module:" + format,
            new Version(1, 0, 0, null, "org.brutusin", "json-provider:" + format));
    testModule.addSerializer(new StdSerializer(clazz) {
        @Override/*from  ww w . j a v a2s  .c o m*/
        public void serialize(Object value, JsonGenerator gen, SerializerProvider provider) throws IOException {
            gen.writeString(value.toString());
        }
    });
    mapper.registerModule(testModule);
}

---

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

@Override
public void serialize(BigDecimal value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
    if (value != null) {
        // Does it have more that 15 significant digits ?
        BigInteger unscaled = value.unscaledValue();
        if (unscaled.compareTo(MIN_VALUE) >= 0 && unscaled.compareTo(MAX_VALUE) <= 0) {
            jgen.writeNumber(value);//from w w w . ja  va 2s .  c om
        } else {
            jgen.writeString(value.toString());
        }
    } else {
        jgen.writeNull();
    }
}

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