ResponseHandler.java

/*
 * Copyright 2015 uaiHebert
 *
 * 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 com.uaihebert.uaimockserver.server;

import com.uaihebert.uaimockserver.log.backend.Log;
import com.uaihebert.uaimockserver.model.UaiHeader;
import com.uaihebert.uaimockserver.model.UaiResponse;
import com.uaihebert.uaimockserver.util.FileUtil;
import com.uaihebert.uaimockserver.util.StringUtils;
import io.undertow.server.HttpServerExchange;
import io.undertow.util.Headers;
import io.undertow.util.HttpString;

import java.nio.ByteBuffer;

class ResponseHandler {
    public void process(final HttpServerExchange exchange, final UaiResponse uaiResponse) {
        Log.infoFormatted("Response that will be sent: [%s]", uaiResponse);

        exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, uaiResponse.getContentType());

        exchange.setResponseCode(uaiResponse.getStatusCode());

        setResponseHeaders(uaiResponse, exchange);

        defineResponseBody(exchange, uaiResponse);
    }

    private void defineResponseBody(HttpServerExchange exchange, UaiResponse uaiResponse) {
        if (!uaiResponse.isBodyPointingToFile() && uaiResponse.getBody() != null) {
            exchange.getResponseSender().send(uaiResponse.getBody());
            return;
        }

        if (uaiResponse.isBodyPointingToFile() && StringUtils.isNotBlank(uaiResponse.getBodyPath())) {
            final ByteBuffer wrap = FileUtil.getFileAsByteBuffer(uaiResponse.getBodyPath());

            exchange.startBlocking();
            exchange.getResponseSender().send(wrap);
        }
    }

    private void setResponseHeaders(final UaiResponse uaiResponse, final HttpServerExchange exchange) {
        for (UaiHeader uaiHeader : uaiResponse.getHeaderList()) {
            for (String value : uaiHeader.getValueList()) {
                exchange.getResponseHeaders().add(new HttpString(uaiHeader.getName()), value);
            }
        }
    }
}