/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.dubbo.rpc.protocol.rest.annotation.param.parse.provider;

import org.apache.dubbo.common.extension.Activate;
import org.apache.dubbo.metadata.rest.ArgInfo;
import org.apache.dubbo.metadata.rest.ParamType;
import org.apache.dubbo.metadata.rest.media.MediaType;
import org.apache.dubbo.rpc.protocol.rest.RestHeaderEnum;
import org.apache.dubbo.rpc.protocol.rest.constans.RestConstant;
import org.apache.dubbo.rpc.protocol.rest.exception.ParamParseException;
import org.apache.dubbo.rpc.protocol.rest.message.HttpMessageCodecManager;
import org.apache.dubbo.rpc.protocol.rest.request.RequestFacade;
import org.apache.dubbo.rpc.protocol.rest.util.MediaTypeUtil;

/**
 * body param parse
 */
@Activate(value = RestConstant.PROVIDER_BODY_PARSE)
public class BodyProviderParamParser extends ProviderParamParser {

    @Override
    protected void doParse(ProviderParseContext parseContext, ArgInfo argInfo) {

        RequestFacade request = parseContext.getRequestFacade();

        try {
            String contentType = parseContext.getRequestFacade().getHeader(RestHeaderEnum.CONTENT_TYPE.getHeader());
            MediaType mediaType = MediaTypeUtil.convertMediaType(argInfo.getParamType(), contentType);
            Object param = HttpMessageCodecManager.httpMessageDecode(
                    request.getInputStream(), argInfo.getParamType(), argInfo.actualReflectType(), mediaType);
            parseContext.setValueByIndex(argInfo.getIndex(), param);
        } catch (Throwable e) {
            throw new ParamParseException("dubbo rest protocol provider body param parser  error: " + e.getMessage());
        }
    }

    @Override
    protected ParamType getParamType() {
        return ParamType.PROVIDER_BODY;
    }
}
