org.dbflute.remoteapi.receiver.FlJsonReceiver Maven / Gradle / Ivy

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/*
 * Copyright 2015-2017 the original author or authors.
 *
 * 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.dbflute.remoteapi.receiver;

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

import org.dbflute.optional.OptionalThing;
import org.dbflute.remoteapi.FlutyRemoteApiRule;

/**
 * @author inoue
 * @author jflute
 */
public abstract class FlJsonReceiver extends FlBaseReceiver {

    // ===================================================================================
    //                                                                          Convert to
    //                                                                          ==========
    @Override
    public  RETURN toResponseReturn(OptionalThing body, Type beanType, FlutyRemoteApiRule rule) {
        final String json = body.orElseThrow(() -> { // translated with rich message so simple here
            return new IllegalStateException("Not found the response body as JSON.");
        });
        final RETURN ret = resolveJsonReturn(json, beanType);
        readySendReceiveLogIfNeeds(rule, body, json);
        return ret;
    }

    @SuppressWarnings("unchecked")
    protected  RETURN resolveJsonReturn(String json, Type beanType) {
        if (beanType instanceof Class) {
            return (RETURN) fromJson(json, (Class) beanType);
        } else {
            return (RETURN) fromJsonParameteried(json, (ParameterizedType) beanType);
        }
    }

    protected abstract  BEAN fromJson(String json, Class beanType);

    protected abstract  BEAN fromJsonParameteried(String json, ParameterizedType parameterizedType);

    // -----------------------------------------------------
    //                                  Send/Receive Logging
    //                                  --------------------
    @Override
    protected String getSendReceiveLogResponseBodyType() {
        return "json";
    }
}