Example usage for com.fasterxml.jackson.databind MappingJsonFactory getCodec

Introduction

In this page you can find the example usage for com.fasterxml.jackson.databind MappingJsonFactory getCodec.

Prototype

public final ObjectMapper getCodec() 

Source Link

Usage

From source file:org.jberet.support.io.MappingJsonFactoryObjectFactory.java

/**
 * Gets an instance of {@code com.fasterxml.jackson.databind.MappingJsonFactory} based on the resource configuration
 * in the application server. The parameter {@code environment} contains MappingJsonFactory configuration properties,
 * and accepts the following properties:
 * <ul>/*from   w  w  w.j a  va  2 s  .c  o  m*/
 * <li>jsonFactoryFeatures: JsonFactory features as defined in com.fasterxml.jackson.core.JsonFactory.Feature
 * <li>mapperFeatures: ObjectMapper features as defined in com.fasterxml.jackson.databind.MapperFeature
 * <li>deserializationFeatures:
 * <li>serializationFeatures:
 * <li>customDeserializers:
 * <li>customSerializers:
 * <li>deserializationProblemHandlers:
 * <li>customDataTypeModules:
 * <li>inputDecorator: fully-qualified name of a class that extends {@code com.fasterxml.jackson.core.io.InputDecorator}
 * <li>outputDecorator: fully-qualified name of a class that extends {@code com.fasterxml.jackson.core.io.OutputDecorator}
 * </ul>
 *
 * @param obj         the JNDI name of {@code com.fasterxml.jackson.databind.MappingJsonFactory} resource
 * @param name        always null
 * @param nameCtx     always null
 * @param environment a {@code Hashtable} of configuration properties
 * @return an instance of {@code com.fasterxml.jackson.databind.MappingJsonFactory}
 * @throws Exception any exception occurred
 */
@Override
public Object getObjectInstance(final Object obj, final Name name, final Context nameCtx,
        final Hashtable<?, ?> environment) throws Exception {
    MappingJsonFactory jsonFactory = jsonFactoryCached;
    if (jsonFactory == null) {
        synchronized (this) {
            jsonFactory = jsonFactoryCached;
            if (jsonFactory == null) {
                jsonFactoryCached = jsonFactory = new MappingJsonFactory();
            }

            final ClassLoader classLoader = MappingJsonFactoryObjectFactory.class.getClassLoader();
            final ObjectMapper objectMapper = jsonFactory.getCodec();

            final Object jsonFactoryFeatures = environment.get("jsonFactoryFeatures");
            if (jsonFactoryFeatures != null) {
                NoMappingJsonFactoryObjectFactory.configureJsonFactoryFeatures(jsonFactory,
                        (String) jsonFactoryFeatures);
            }

            final Object mapperFeatures = environment.get("mapperFeatures");
            if (mapperFeatures != null) {
                configureMapperFeatures(objectMapper, (String) mapperFeatures);
            }

            final Object deserializationFeatures = environment.get("deserializationFeatures");
            if (deserializationFeatures != null) {
                configureDeserializationFeatures(objectMapper, (String) deserializationFeatures);
            }

            final Object serializationFeatures = environment.get("serializationFeatures");
            if (serializationFeatures != null) {
                configureSerializationFeatures(objectMapper, (String) serializationFeatures);
            }

            final Object deserializationProblemHandlers = environment.get("deserializationProblemHandlers");
            if (deserializationProblemHandlers != null) {
                configureDeserializationProblemHandlers(objectMapper, (String) deserializationProblemHandlers,
                        classLoader);
            }

            configureCustomSerializersAndDeserializers(objectMapper,
                    (String) environment.get("customSerializers"),
                    (String) environment.get("customDeserializers"),
                    (String) environment.get("customDataTypeModules"), classLoader);
            NoMappingJsonFactoryObjectFactory.configureInputDecoratorAndOutputDecorator(jsonFactory,
                    environment);
        }
    }
    return jsonFactory;
}

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