org.zodiac.sentinel.base.client.callback.reactive.DefaultReactiveBlockFallback Maven / Gradle / Ivy

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package org.zodiac.sentinel.base.client.callback.reactive;

import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.web.reactive.function.BodyInserters;
import org.springframework.web.reactive.function.server.ServerResponse;
import org.springframework.web.server.ServerWebExchange;
import org.zodiac.commons.util.ArrayUtil;
import org.zodiac.commons.web.model.RestResult;
import org.zodiac.commons.web.model.RestResult.RestResultBuilder;
import org.zodiac.sentinel.base.client.callback.BlockFallback;

import reactor.core.publisher.Mono;

class DefaultReactiveBlockFallback implements BlockFallback {

    private final ServerWebExchange exchange;

    public DefaultReactiveBlockFallback(ServerWebExchange exchange) {
        this.exchange = exchange;
    }

    @Override
    public Mono fallback(HttpStatus status, MediaType contentType, byte[] body, Throwable throwable) throws Exception {
        RestResultBuilder builder = RestResult.builder();
        builder.withSuccess(false).withStatusCode(status.value());
        if (null != throwable) {
            builder.withMsg(throwable.getMessage());
        }
        if (ArrayUtil.notEmptyArray(body)) {
            builder.withData(body);
        }
        RestResult restResult = builder.build();

        return ServerResponse.status(status).contentType(contentType).body(BodyInserters.fromValue(restResult));
    }

}