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ZookeeperTransporter.java
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ZookeeperTransporter.java
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/*
* 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.remoting.zookeeper;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.extension.ExtensionLoader;
import org.apache.dubbo.common.extension.SPI;
import static org.apache.dubbo.common.extension.ExtensionLoader.getExtensionLoader;
@SPI
public interface ZookeeperTransporter {
String CURATOR_5 = "curator5";
String CURATOR = "curator";
ZookeeperClient connect(URL url);
static ZookeeperTransporter getExtension() {
ExtensionLoader<ZookeeperTransporter> extensionLoader = getExtensionLoader(ZookeeperTransporter.class);
boolean isHighVersion = isHighVersionCurator();
if (isHighVersion) {
return extensionLoader.getExtension(CURATOR_5);
}
return extensionLoader.getExtension(CURATOR);
}
static boolean isHighVersionCurator() {
try {
Class.forName("org.apache.curator.framework.recipes.cache.CuratorCache");
return true;
} catch (ClassNotFoundException e) {
return false;
}
}
}