dubbo-metadata-report-extensions/dubbo-metadata-rest/src/main/java/org/apache/dubbo/metadata/extension/rest/api/AbstractNoAnnotatedParameterProcessor.java

/*
 * 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.metadata.extension.rest.api;

import org.apache.dubbo.metadata.extension.rest.api.jaxrs.JAXRSServiceRestMetadataResolver;
import org.apache.dubbo.metadata.extension.rest.api.media.MediaType;

import java.lang.reflect.Parameter;
import java.util.Set;

import static org.apache.dubbo.common.utils.ClassUtils.getClassLoader;
import static org.apache.dubbo.common.utils.ClassUtils.resolveClass;

public abstract class AbstractNoAnnotatedParameterProcessor implements NoAnnotatedParameterRequestTagProcessor {

    public boolean process(Parameter parameter, int parameterIndex, RestMethodMetadata restMethodMetadata) {
        MediaType mediaType = consumerContentType();
        if (!contentTypeSupport(restMethodMetadata, mediaType, parameter.getType())) {
            return false;
        }
        boolean isFormBody = isFormContentType(restMethodMetadata);
        addArgInfo(parameter, parameterIndex, restMethodMetadata, isFormBody);
        return true;
    }

    private boolean contentTypeSupport(RestMethodMetadata restMethodMetadata, MediaType mediaType, Class paramType) {

        // @RequestParam String,number param
        if (mediaType.equals(MediaType.ALL_VALUE)) {
            // jaxrs no annotation param is from http body
            if (JAXRSServiceRestMetadataResolver.class.equals(restMethodMetadata.getCodeStyle())) {
                return true;
            }

            // spring mvc no annotation param only is used by text data(string,number)
            if (String.class == paramType || paramType.isPrimitive() || Number.class.isAssignableFrom(paramType)) {
                return true;
            }
        }

        Set<String> consumes = restMethodMetadata.getRequest().getConsumes();
        for (String consume : consumes) {
            if (consume.contains(mediaType.value)) {
                return true;
            }
        }

        return false;
    }

    protected boolean isFormContentType(RestMethodMetadata restMethodMetadata) {

        return false;
    }

    protected void addArgInfo(
            Parameter parameter, int parameterIndex, RestMethodMetadata restMethodMetadata, boolean isFormBody) {
        ArgInfo argInfo = ArgInfo.build(parameterIndex, parameter)
                .setParamAnnotationType(resolveClass(defaultAnnotationClassName(restMethodMetadata), getClassLoader()))
                .setAnnotationNameAttribute(parameter.getName())
                .setFormContentType(isFormBody);
        restMethodMetadata.addArgInfo(argInfo);
    }
}