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/*******************************************************************************
* Copyright 2017 ZTE, Inc. and others.
*
* 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.
******************************************************************************/
/*
* Copyright (C) 2015 Square, Inc.
*
* 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 org.onap.msb.sdk.httpclient.convert.jackson;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectReader;
import com.fasterxml.jackson.databind.ObjectWriter;
import com.fasterxml.jackson.databind.SerializationFeature;
import okhttp3.RequestBody;
import okhttp3.ResponseBody;
import retrofit2.Converter;
import retrofit2.Retrofit;
/**
* A {@linkplain Converter.Factory converter} which uses Jackson.
* <p>
* Because Jackson is so flexible in the types it supports, this converter assumes that it can
* handle all types. If you are mixing JSON serialization with something else (such as protocol
* buffers), you must {@linkplain Retrofit.Builder#addConverterFactory(Converter.Factory) add this
* instance} last to allow the other converters a chance to see their types.
*/
public final class JacksonConverterFactory extends Converter.Factory {
/** Create an instance using a default {@link ObjectMapper} instance for conversion. */
public static JacksonConverterFactory create() {
ObjectMapper mapper = new ObjectMapper();
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
mapper.configure(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT, true);
return create(mapper);
}
/** Create an instance using {@code mapper} for conversion. */
public static JacksonConverterFactory create(ObjectMapper mapper) {
return new JacksonConverterFactory(mapper);
}
private final ObjectMapper mapper;
private JacksonConverterFactory(ObjectMapper mapper) {
if (mapper == null)
throw new NullPointerException("mapper == null");
this.mapper = mapper;
}
@Override
public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations,
Retrofit retrofit) {
JavaType javaType = mapper.getTypeFactory().constructType(type);
ObjectReader reader = mapper.reader(javaType);
return new JacksonResponseBodyConverter<>(reader);
}
@Override
public Converter<?, RequestBody> requestBodyConverter(Type type,
Annotation[] parameterAnnotations, Annotation[] methodAnnotations, Retrofit retrofit) {
JavaType javaType = mapper.getTypeFactory().constructType(type);
ObjectWriter writer = mapper.writerWithType(javaType);
return new JacksonRequestBodyConverter<>(writer);
}
}
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