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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);
+ }
+}