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/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.elasticsearch.client;

import com.carrotsearch.randomizedtesting.generators.RandomPicks;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Random;

final class RestClientTestUtil {

    private static final String[] HTTP_METHODS = new String[]{"DELETE", "HEAD", "GET", "OPTIONS", "PATCH", "POST", "PUT", "TRACE"};
    private static final List ALL_STATUS_CODES;
    private static final List OK_STATUS_CODES = Arrays.asList(200, 201);
    private static final List ALL_ERROR_STATUS_CODES;
    private static List ERROR_NO_RETRY_STATUS_CODES = Arrays.asList(400, 401, 403, 404, 405, 500);
    private static List ERROR_RETRY_STATUS_CODES = Arrays.asList(502, 503, 504);

    static {
        ALL_ERROR_STATUS_CODES = new ArrayList<>(ERROR_RETRY_STATUS_CODES);
        ALL_ERROR_STATUS_CODES.addAll(ERROR_NO_RETRY_STATUS_CODES);
        ALL_STATUS_CODES = new ArrayList<>(ALL_ERROR_STATUS_CODES);
        ALL_STATUS_CODES.addAll(OK_STATUS_CODES);
    }

    private RestClientTestUtil() {

    }

    static String[] getHttpMethods() {
        return HTTP_METHODS;
    }

    static String randomHttpMethod(Random random) {
        return RandomPicks.randomFrom(random, HTTP_METHODS);
    }

    static int randomStatusCode(Random random) {
        return RandomPicks.randomFrom(random, ALL_ERROR_STATUS_CODES);
    }

    static int randomOkStatusCode(Random random) {
        return RandomPicks.randomFrom(random, OK_STATUS_CODES);
    }

    static int randomErrorNoRetryStatusCode(Random random) {
        return RandomPicks.randomFrom(random, ERROR_NO_RETRY_STATUS_CODES);
    }

    static int randomErrorRetryStatusCode(Random random) {
        return RandomPicks.randomFrom(random, ERROR_RETRY_STATUS_CODES);
    }

    static List getOkStatusCodes() {
        return OK_STATUS_CODES;
    }

    static List getAllErrorStatusCodes() {
        return ALL_ERROR_STATUS_CODES;
    }

    static List getAllStatusCodes() {
        return ALL_STATUS_CODES;
    }
}