dubbo Transporters 源码

2022-10-20
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dubbo Transporters 代码

文件路径：/dubbo-remoting/dubbo-remoting-api/src/main/java/org/apache/dubbo/remoting/Transporters.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.dubbo.remoting;

import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.Version;
import org.apache.dubbo.remoting.transport.ChannelHandlerAdapter;
import org.apache.dubbo.remoting.transport.ChannelHandlerDispatcher;

/**
 * Transporter facade. (API, Static, ThreadSafe)
 */
public class Transporters {

    static {
        // check duplicate jar package
        Version.checkDuplicate(Transporters.class);
        Version.checkDuplicate(RemotingException.class);
    }

    private Transporters() {
    }

    public static RemotingServer bind(String url, ChannelHandler... handler) throws RemotingException {
        return bind(URL.valueOf(url), handler);
    }

    public static RemotingServer bind(URL url, ChannelHandler... handlers) throws RemotingException {
        if (url == null) {
            throw new IllegalArgumentException("url == null");
        }
        if (handlers == null || handlers.length == 0) {
            throw new IllegalArgumentException("handlers == null");
        }
        ChannelHandler handler;
        if (handlers.length == 1) {
            handler = handlers[0];
        } else {
            handler = new ChannelHandlerDispatcher(handlers);
        }
        return getTransporter(url).bind(url, handler);
    }

    public static Client connect(String url, ChannelHandler... handler) throws RemotingException {
        return connect(URL.valueOf(url), handler);
    }

    public static Client connect(URL url, ChannelHandler... handlers) throws RemotingException {
        if (url == null) {
            throw new IllegalArgumentException("url == null");
        }
        ChannelHandler handler;
        if (handlers == null || handlers.length == 0) {
            handler = new ChannelHandlerAdapter();
        } else if (handlers.length == 1) {
            handler = handlers[0];
        } else {
            handler = new ChannelHandlerDispatcher(handlers);
        }
        return getTransporter(url).connect(url, handler);
    }

    public static Transporter getTransporter(URL url) {
        return url.getOrDefaultFrameworkModel().getExtensionLoader(Transporter.class).getAdaptiveExtension();
    }

}

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本文标签： Java
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