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

Introduction

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

Prototype

public abstract ObjectCodec getCodec();

Source Link

Document

Method for accessing the object used for writing Java object as Json content (using method #writeObject ).

Usage

From source file:org.mashti.jetson.util.JsonGeneratorUtil.java

/**
 * Writes the given {@code values} as a JSON array with the given field name and serialises each value as a provided type.
 * An {@link ObjectMapper} must be present as the {@code generator}'s {@link JsonGenerator#getCodec() codec}.
 * For each value in the given {@code values}, a type must be provided under the same index in {@code value_types}.
 * This method supports parameterised types.
 *
 * @param generator the JSON generator/*  w w w  .  ja v a 2 s . c  o  m*/
 * @param field_name the field name of the JSON array
 * @param value_types the types of the values
 * @param values the values
 * @throws IOException Signals that an I/O exception has occurred.
 */
public static void writeValuesAs(final JsonGenerator generator, final String field_name,
        final Type[] value_types, final Object[] values) throws IOException {

    generator.writeArrayFieldStart(field_name);
    if (values != null && values.length > 0) {
        final ObjectMapper mapper = (ObjectMapper) generator.getCodec();
        int i = 0;
        for (final Object value : values) {
            final Type value_type = value_types[i++];
            final ObjectWriter writer = mapper.writerWithType(JsonParserUtil.toTypeReference(value_type));
            writer.writeValue(generator, value);
        }
    }
    generator.writeEndArray();
}

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From source file:net.logstash.logback.marker.ObjectFieldsAppendingMarker.java

@Override
public void writeTo(JsonGenerator generator) throws IOException {
    if (object != null) {
        ObjectMapper mapper = (ObjectMapper) generator.getCodec();
        JsonSerializer<Object> serializer = getBeanSerializer(mapper);
        if (serializer.isUnwrappingSerializer()) {
            serializer.serialize(object, generator, getSerializerProvider(mapper));
        }//from   w  w  w  . java2s .com
    }
}

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From source file:com.meltmedia.jackson.crypto.EncryptedJsonSerializer.java

@Override
public void serialize(Object object, JsonGenerator generator, SerializerProvider provider)
        throws IOException, JsonProcessingException {

    StringWriter writer = new StringWriter();
    JsonGenerator nestedGenerator = generator.getCodec().getFactory().createGenerator(writer);
    if (baseSer == null) {
        provider.defaultSerializeValue(object, nestedGenerator);
    } else {//from  w w w.  j  a  va2 s. c om
        baseSer.serialize(object, nestedGenerator, provider);
    }
    nestedGenerator.close();
    String value = writer.getBuffer().toString();
    EncryptedJson encrypted = service.encrypt(value, this.annotation.encoding());
    generator.writeObject(encrypted);
}

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From source file:com.github.jonpeterson.jackson.module.interceptor.JsonInterceptingSerializer.java

@Override
public void serialize(T value, JsonGenerator generator, SerializerProvider provider) throws IOException {
    // serialize the value into a byte array buffer then parse it back out into a JsonNode tree
    // TODO: find a better way to convert the value into a tree
    JsonFactory factory = generator.getCodec().getFactory();
    ByteArrayOutputStream buffer = new ByteArrayOutputStream(4096);
    JsonGenerator bufferGenerator = factory.createGenerator(buffer);
    try {/*w  ww.  j a va  2 s. c  o  m*/
        delegate.serialize(value, bufferGenerator, provider);
    } finally {
        bufferGenerator.close();
    }
    JsonNode jsonNode = factory.createParser(buffer.toByteArray()).readValueAsTree();

    // execute interceptors on node
    for (JsonInterceptor interceptor : interceptors)
        jsonNode = interceptor.intercept(jsonNode, jsonNodeFactory);

    // write node
    generator.writeTree(jsonNode);
}

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From source file:com.github.jonpeterson.jackson.module.versioning.VersionedModelSerializer.java

private void doSerialize(T value, JsonGenerator generator, SerializerProvider provider,
        TypeSerializer typeSerializer) throws IOException {
    // serialize the value into a byte array buffer then parse it back out into a JsonNode tree
    // TODO: find a better way to convert the value into a tree
    JsonFactory factory = generator.getCodec().getFactory();
    ByteArrayOutputStream buffer = new ByteArrayOutputStream(4096);
    JsonGenerator bufferGenerator = factory.createGenerator(buffer);
    try {/*from ww  w .j  ava2  s .  c  o  m*/
        if (typeSerializer != null)
            delegate.serializeWithType(value, bufferGenerator, provider, typeSerializer);
        else
            delegate.serialize(value, bufferGenerator, provider);
    } finally {
        bufferGenerator.close();
    }

    ObjectNode modelData = factory.createParser(buffer.toByteArray()).readValueAsTree();

    // set target version to @SerializeToVersion's value, @JsonVersionModel's defaultSerializeToVersion, or
    //   @JsonVersionModel's currentVersion in that order
    String targetVersion = null;
    if (serializeToVersionProperty != null) {
        targetVersion = (String) serializeToVersionProperty.getAccessor().getValue(value);
        modelData.remove(serializeToVersionProperty.getName());
    }
    if (targetVersion == null)
        targetVersion = jsonVersionedModel.defaultSerializeToVersion();
    if (targetVersion.isEmpty())
        targetVersion = jsonVersionedModel.currentVersion();

    // convert model data if there is a converter and targetVersion is different than the currentVersion or if
    //   alwaysConvert is true
    if (converter != null && (jsonVersionedModel.alwaysConvert()
            || !targetVersion.equals(jsonVersionedModel.currentVersion())))
        modelData = converter.convert(modelData, jsonVersionedModel.currentVersion(), targetVersion,
                JsonNodeFactory.instance);

    // add target version to model data if it wasn't the version to suppress
    if (!targetVersion.equals(jsonVersionedModel.versionToSuppressPropertySerialization()))
        modelData.put(jsonVersionedModel.propertyName(), targetVersion);

    // write node
    generator.writeTree(modelData);
}

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From source file:com.zenesis.qx.remote.SimpleQueue.java

@Override
public synchronized void serialize(JsonGenerator gen, SerializerProvider sp)
        throws IOException, JsonProcessingException {
    gen.writeStartArray();/*  w w w.j  av a  2s  . co  m*/
    while (!values.isEmpty()) {
        CommandId id = values.keySet().iterator().next();
        Object data = values.remove(id);

        if (id.type == CommandType.DEFINE) {
            ProxyType type = (ProxyType) id.object;
            ProxySessionTracker tracker = ((ProxyObjectMapper) gen.getCodec()).getTracker();
            if (tracker.isTypeDelivered(type))
                continue;
        }

        gen.writeStartObject();
        gen.writeStringField("type", id.type.remoteId);
        if (id.object != null)
            gen.writeObjectField("object", id.object);
        if (id.name != null)
            gen.writeObjectField("name", id.name);
        if (data != null)
            gen.writeObjectField("data", data);
        gen.writeEndObject();
    }
    gen.writeEndArray();
    values.clear();
    needsFlush = false;
}

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