Java tutorial
/* * 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 retrofit2; import com.squareup.okhttp.MediaType; import com.squareup.okhttp.RequestBody; import com.squareup.okhttp.ResponseBody; import java.io.IOException; import java.lang.annotation.Annotation; import java.lang.reflect.Type; class ToStringConverterFactory extends Converter.Factory { private static final MediaType MEDIA_TYPE = MediaType.parse("text/plain"); @Override public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations, Retrofit retrofit) { if (String.class.equals(type)) { return new Converter<ResponseBody, String>() { @Override public String convert(ResponseBody value) throws IOException { return value.string(); } }; } return null; } @Override public Converter<?, RequestBody> requestBodyConverter(Type type, Annotation[] annotations, Retrofit retrofit) { if (String.class.equals(type)) { return new Converter<String, RequestBody>() { @Override public RequestBody convert(String value) throws IOException { return RequestBody.create(MEDIA_TYPE, value); } }; } return null; } }