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The core of Sentinel

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/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * 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.alibaba.csp.sentinel.cluster;

/**
 * @author Eric Zhao
 * @since 1.4.0
 */
public final class TokenResultStatus {

    /**
     * Bad client request.
     */
    public static final int BAD_REQUEST = -4;
    /**
     * Too many request in server.
     */
    public static final int TOO_MANY_REQUEST = -2;
    /**
     * Server or client unexpected failure (due to transport or serialization failure).
     */
    public static final int FAIL = -1;

    /**
     * Token acquired.
     */
    public static final int OK = 0;

    /**
     * Token acquire failed (blocked).
     */
    public static final int BLOCKED = 1;
    /**
     * Should wait for next buckets.
     */
    public static final int SHOULD_WAIT = 2;
    /**
     * Token acquire failed (no rule exists).
     */
    public static final int NO_RULE_EXISTS = 3;
    /**
     * Token acquire failed (reference resource is not available).
     */
    public static final int NO_REF_RULE_EXISTS = 4;
    /**
     * Token acquire failed (strategy not available).
     */
    public static final int NOT_AVAILABLE = 5;

    private TokenResultStatus() {}
}