Java tutorial
/* * Copyright (C) 2012-2016. TomTom International BV (http://tomtom.com). * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.tomtom.speedtools.json; import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility; import com.fasterxml.jackson.annotation.JsonInclude.Include; import com.fasterxml.jackson.annotation.PropertyAccessor; import com.fasterxml.jackson.core.JsonFactory; import com.fasterxml.jackson.core.JsonGenerator.Feature; import com.fasterxml.jackson.core.JsonParser; import com.fasterxml.jackson.databind.DeserializationFeature; import com.fasterxml.jackson.databind.MapperFeature; import com.fasterxml.jackson.databind.ObjectMapper; import com.fasterxml.jackson.databind.SerializationFeature; /** * This class defines a Jackson mapper factory. Any annotation inspectors need to be set in the calling classes. */ public final class JsonObjectMapperFactory { private JsonObjectMapperFactory() { super(); assert false; } public static ObjectMapper createJsonObjectMapper() { // Create a Json factory with customer properties. final JsonFactory jsonFactory = new JsonFactory(); // Json parsing features. jsonFactory.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true) .configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true); // Json generation features. jsonFactory.configure(Feature.QUOTE_FIELD_NAMES, true).configure(Feature.WRITE_NUMBERS_AS_STRINGS, false); // Create a custom object mapper from the newly created factory. This object mapper will be used by RestEasy. final ObjectMapper mapper = new ObjectMapper(jsonFactory); // Set generic mapper configuration. mapper.configure(MapperFeature.USE_ANNOTATIONS, true).configure(MapperFeature.AUTO_DETECT_GETTERS, false) .configure(MapperFeature.AUTO_DETECT_IS_GETTERS, false) .configure(MapperFeature.AUTO_DETECT_SETTERS, false) .configure(MapperFeature.CAN_OVERRIDE_ACCESS_MODIFIERS, true); mapper.setVisibility(PropertyAccessor.FIELD, Visibility.ANY).setSerializationInclusion(Include.NON_NULL) .disableDefaultTyping().disable(SerializationFeature.WRITE_NULL_MAP_VALUES); // Set deserialization configuration. mapper.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true) .configure(DeserializationFeature.UNWRAP_ROOT_VALUE, false); // Set serialization configuration. mapper.configure(SerializationFeature.INDENT_OUTPUT, false) .configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, true) .configure(SerializationFeature.WRAP_ROOT_VALUE, false) .configure(SerializationFeature.WRITE_DATE_KEYS_AS_TIMESTAMPS, false) .configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false) .configure(SerializationFeature.WRITE_ENUMS_USING_TO_STRING, false) .configure(SerializationFeature.WRITE_EMPTY_JSON_ARRAYS, true) .configure(SerializationFeature.WRITE_ENUMS_USING_TO_STRING, false); // The annotation inspectors and additional mappers should be set by the caller. return mapper; } }