/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.apache.dubbo.qos.command.impl;

import org.apache.dubbo.qos.api.BaseCommand;
import org.apache.dubbo.qos.api.Cmd;
import org.apache.dubbo.qos.api.CommandContext;
import org.apache.dubbo.qos.api.PermissionLevel;
import org.apache.dubbo.rpc.model.FrameworkModel;

@Cmd(
        name = "gracefulShutdown",
        summary = "Gracefully shutdown servers",
        example = {"gracefulShutdown"},
        requiredPermissionLevel = PermissionLevel.PRIVATE)
public class GracefulShutdown implements BaseCommand {
    private final Offline offline;
    private final FrameworkModel frameworkModel;

    public GracefulShutdown(FrameworkModel frameworkModel) {
        this.offline = new Offline(frameworkModel);
        this.frameworkModel = frameworkModel;
    }

    @Override
    public String execute(CommandContext commandContext, String[] args) {
        for (org.apache.dubbo.rpc.GracefulShutdown gracefulShutdown :
                org.apache.dubbo.rpc.GracefulShutdown.getGracefulShutdowns(frameworkModel)) {
            gracefulShutdown.readonly();
        }
        offline.execute(commandContext, new String[0]);
        return "OK";
    }
}
