cn.fintecher.print.web.util.JacksonEncoder.java Source code

Introduction

Here is the source code for cn.fintecher.print.web.util.JacksonEncoder.java

Source

/*
 * Copyright 2013 Netflix, 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 cn.fintecher.print.web.util;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.Module;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import feign.RequestTemplate;
import feign.codec.EncodeException;
import feign.codec.Encoder;

import java.lang.reflect.Type;
import java.util.Collections;

public class JacksonEncoder implements Encoder {

    private final ObjectMapper mapper;

    public JacksonEncoder() {
        this(Collections.<Module>emptyList());
    }

    public JacksonEncoder(Iterable<Module> modules) {
        this(new ObjectMapper().setSerializationInclusion(JsonInclude.Include.NON_NULL)
                .configure(SerializationFeature.INDENT_OUTPUT, true).registerModules(modules));
    }

    public JacksonEncoder(ObjectMapper mapper) {
        this.mapper = mapper;
    }

    @Override
    public void encode(Object object, Type bodyType, RequestTemplate template) {
        try {
            JavaType javaType = mapper.getTypeFactory().constructType(bodyType);
            template.body(mapper.writerFor(javaType).writeValueAsString(object));
        } catch (JsonProcessingException e) {
            throw new EncodeException(e.getMessage(), e);
        }
    }
}