io.seata.discovery.registry.RegistryFactory Maven / Gradle / Ivy
/*
* Copyright 1999-2019 Seata.io Group.
*
* 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 io.seata.discovery.registry;
import java.util.Objects;
import io.seata.common.exception.NotSupportYetException;
import io.seata.common.loader.EnhancedServiceLoader;
import io.seata.config.ConfigurationFactory;
import io.seata.config.ConfigurationKeys;
/**
* The type Registry factory.
*
* @author slievrly
*/
public class RegistryFactory {
/**
* Gets instance.
*
* @return the instance
*/
public static RegistryService getInstance() {
return RegistryFactoryHolder.INSTANCE;
}
private static RegistryService buildRegistryService() {
RegistryType registryType;
String registryTypeName = ConfigurationFactory.CURRENT_FILE_INSTANCE.getConfig(
ConfigurationKeys.FILE_ROOT_REGISTRY + ConfigurationKeys.FILE_CONFIG_SPLIT_CHAR
+ ConfigurationKeys.FILE_ROOT_TYPE);
try {
registryType = RegistryType.getType(registryTypeName);
} catch (Exception exx) {
throw new NotSupportYetException("not support registry type: " + registryTypeName);
}
return EnhancedServiceLoader.load(RegistryProvider.class, Objects.requireNonNull(registryType).name()).provide();
}
private static class RegistryFactoryHolder {
private static final RegistryService INSTANCE = buildRegistryService();
}
}
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