shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/servcie/impl/MetadataCenterServiceImpl.java

/*
 * 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.shardingsphere.ui.servcie.impl;

import org.apache.shardingsphere.orchestration.core.metadata.MetaDataCenterNode;
import org.apache.shardingsphere.ui.common.constant.OrchestrationType;
import org.apache.shardingsphere.ui.common.domain.CenterConfig;
import org.apache.shardingsphere.ui.common.exception.ShardingSphereUIException;
import org.apache.shardingsphere.ui.servcie.CenterConfigService;
import org.apache.shardingsphere.ui.servcie.MetadataCenterService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.Optional;

/**
 * Implementation of metadata center operation service.
 */
@Service
public final class MetadataCenterServiceImpl implements MetadataCenterService {

    @Resource
    private CenterConfigService centerConfigService;

    @Override
    public MetaDataCenterNode getActivateMetaDataCenterNode() {
        Optional<CenterConfig> optional = centerConfigService.loadActivated(OrchestrationType.CONFIG_CENTER.getValue());
        if (optional.isPresent()) {
            return new MetaDataCenterNode(optional.get().getOrchestrationName());
        }
        throw new ShardingSphereUIException(ShardingSphereUIException.SERVER_ERROR, "No activated metadata center!");
    }
}