io.gravitee.gateway.http.connector.VertxProxyResponse Maven / Gradle / Ivy

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/**
 * Copyright (C) 2015 The Gravitee team (http://gravitee.io)
 *
 * 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 io.gravitee.gateway.http.connector;

import io.gravitee.common.http.HttpHeaders;
import io.gravitee.gateway.api.buffer.Buffer;
import io.gravitee.gateway.api.handler.Handler;
import io.gravitee.gateway.api.proxy.ProxyResponse;
import io.gravitee.gateway.api.stream.ReadStream;
import io.vertx.core.http.HttpClientResponse;

/**
 * @author David BRASSELY (david.brassely at graviteesource.com)
 * @author GraviteeSource Team
 */
class VertxProxyResponse implements ProxyResponse {

    private Handler bodyHandler;
    private Handler endHandler;

    private final int status;
    private final HttpHeaders httpHeaders = new HttpHeaders();
    private final HttpClientResponse httpClientResponse;

    VertxProxyResponse(final HttpClientResponse httpClientResponse) {
        this.httpClientResponse = httpClientResponse;
        this.status = httpClientResponse.statusCode();
    }

    VertxProxyResponse(final int status) {
        this.status = status;
        this.httpClientResponse = null;
    }

    @Override
    public int status() {
        return this.status;
    }

    @Override
    public HttpHeaders headers() {
        return httpHeaders;
    }

    @Override
    public ProxyResponse bodyHandler(Handler bodyHandler) {
        this.bodyHandler = bodyHandler;
        return this;
    }

    Handler bodyHandler() {
        return this.bodyHandler;
    }

    @Override
    public ProxyResponse endHandler(Handler endHandler) {
        this.endHandler = endHandler;
        return this;
    }

    Handler endHandler() {
        return this.endHandler;
    }

    @Override
    public ReadStream pause() {
        if (httpClientResponse != null) {
            httpClientResponse.pause();
        }
        return this;
    }

    @Override
    public ReadStream resume() {
        if (httpClientResponse != null) {
            httpClientResponse.resume();
        } else {
            endHandler.handle(null);
        }
        return null;
    }
}