org.apache.dubbo.registry.RegistryFactory Maven / Gradle / Ivy
/*
* 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.registry;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.extension.Adaptive;
import org.apache.dubbo.common.extension.SPI;
import static org.apache.dubbo.common.constants.CommonConstants.PROTOCOL_KEY;
import static org.apache.dubbo.common.extension.ExtensionScope.APPLICATION;
/**
* RegistryFactory. (SPI, Singleton, ThreadSafe)
*
* @see org.apache.dubbo.registry.support.AbstractRegistryFactory
*/
@SPI(scope = APPLICATION)
public interface RegistryFactory {
/**
* Connect to the registry
*
* Connecting the registry needs to support the contract:
* 1. When the check=false is set, the connection is not checked, otherwise the exception is thrown when disconnection
* 2. Support username:password authority authentication on URL.
* 3. Support the backup=10.20.153.10 candidate registry cluster address.
* 4. Support file=registry.cache local disk file cache.
* 5. Support the timeout=1000 request timeout setting.
* 6. Support session=60000 session timeout or expiration settings.
*
* @param url Registry address, is not allowed to be empty
* @return Registry reference, never return empty value
*/
@Adaptive({PROTOCOL_KEY})
Registry getRegistry(URL url);
}