| /* |
| * 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.transport.netty; |
| |
| import org.apache.dubbo.common.URL; |
| import org.apache.dubbo.common.logger.ErrorTypeAwareLogger; |
| import org.apache.dubbo.common.logger.LoggerFactory; |
| import org.apache.dubbo.remoting.ChannelHandler; |
| import org.apache.dubbo.remoting.RemotingException; |
| import org.apache.dubbo.remoting.transport.AbstractChannel; |
| import org.apache.dubbo.remoting.utils.PayloadDropper; |
| |
| import java.net.InetSocketAddress; |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ConcurrentMap; |
| |
| import org.jboss.netty.channel.ChannelFuture; |
| |
| import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_TIMEOUT; |
| import static org.apache.dubbo.common.constants.CommonConstants.TIMEOUT_KEY; |
| import static org.apache.dubbo.common.constants.LoggerCodeConstants.TRANSPORT_FAILED_CLOSE; |
| |
| /** |
| * NettyChannel. |
| */ |
| final class NettyChannel extends AbstractChannel { |
| |
| private static final ErrorTypeAwareLogger logger = LoggerFactory.getErrorTypeAwareLogger(NettyChannel.class); |
| |
| private static final ConcurrentMap<org.jboss.netty.channel.Channel, NettyChannel> CHANNEL_MAP = |
| new ConcurrentHashMap<>(); |
| |
| private final org.jboss.netty.channel.Channel channel; |
| |
| private final Map<String, Object> attributes = new ConcurrentHashMap<>(); |
| |
| private NettyChannel(org.jboss.netty.channel.Channel channel, URL url, ChannelHandler handler) { |
| super(url, handler); |
| if (channel == null) { |
| throw new IllegalArgumentException("netty channel == null;"); |
| } |
| this.channel = channel; |
| } |
| |
| static NettyChannel getOrAddChannel(org.jboss.netty.channel.Channel ch, URL url, ChannelHandler handler) { |
| if (ch == null) { |
| return null; |
| } |
| NettyChannel ret = CHANNEL_MAP.get(ch); |
| if (ret == null) { |
| NettyChannel nc = new NettyChannel(ch, url, handler); |
| if (ch.isConnected()) { |
| ret = CHANNEL_MAP.putIfAbsent(ch, nc); |
| } |
| if (ret == null) { |
| ret = nc; |
| } |
| } |
| return ret; |
| } |
| |
| static void removeChannelIfDisconnected(org.jboss.netty.channel.Channel ch) { |
| if (ch != null && !ch.isConnected()) { |
| CHANNEL_MAP.remove(ch); |
| } |
| } |
| |
| @Override |
| public InetSocketAddress getLocalAddress() { |
| return (InetSocketAddress) channel.getLocalAddress(); |
| } |
| |
| @Override |
| public InetSocketAddress getRemoteAddress() { |
| return (InetSocketAddress) channel.getRemoteAddress(); |
| } |
| |
| @Override |
| public boolean isConnected() { |
| return channel.isConnected(); |
| } |
| |
| @Override |
| public void send(Object message, boolean sent) throws RemotingException { |
| super.send(message, sent); |
| |
| boolean success = true; |
| int timeout = 0; |
| try { |
| ChannelFuture future = channel.write(message); |
| if (sent) { |
| timeout = getUrl().getPositiveParameter(TIMEOUT_KEY, DEFAULT_TIMEOUT); |
| success = future.await(timeout); |
| } |
| Throwable cause = future.getCause(); |
| if (cause != null) { |
| throw cause; |
| } |
| } catch (Throwable e) { |
| throw new RemotingException( |
| this, |
| "Failed to send message " + PayloadDropper.getRequestWithoutData(message) + " to " |
| + getRemoteAddress() + ", cause: " + e.getMessage(), |
| e); |
| } |
| |
| if (!success) { |
| throw new RemotingException( |
| this, |
| "Failed to send message " + PayloadDropper.getRequestWithoutData(message) + " to " |
| + getRemoteAddress() + "in timeout(" + timeout + "ms) limit"); |
| } |
| } |
| |
| @Override |
| public void close() { |
| try { |
| super.close(); |
| } catch (Exception e) { |
| logger.warn(TRANSPORT_FAILED_CLOSE, "", "", e.getMessage(), e); |
| } |
| try { |
| removeChannelIfDisconnected(channel); |
| } catch (Exception e) { |
| logger.warn(TRANSPORT_FAILED_CLOSE, "", "", e.getMessage(), e); |
| } |
| try { |
| attributes.clear(); |
| } catch (Exception e) { |
| logger.warn(TRANSPORT_FAILED_CLOSE, "", "", e.getMessage(), e); |
| } |
| try { |
| if (logger.isInfoEnabled()) { |
| logger.info("Close netty channel " + channel); |
| } |
| channel.close(); |
| } catch (Exception e) { |
| logger.warn(TRANSPORT_FAILED_CLOSE, "", "", e.getMessage(), e); |
| } |
| } |
| |
| @Override |
| public boolean hasAttribute(String key) { |
| return attributes.containsKey(key); |
| } |
| |
| @Override |
| public Object getAttribute(String key) { |
| return attributes.get(key); |
| } |
| |
| @Override |
| public void setAttribute(String key, Object value) { |
| if (value == null) { // The null value unallowed in the ConcurrentHashMap. |
| attributes.remove(key); |
| } else { |
| attributes.put(key, value); |
| } |
| } |
| |
| @Override |
| public void removeAttribute(String key) { |
| attributes.remove(key); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((channel == null) ? 0 : channel.hashCode()); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj == null) { |
| return false; |
| } |
| |
| // FIXME: a hack to make org.apache.dubbo.remoting.exchange.support.DefaultFuture.closeChannel work |
| if (obj instanceof NettyClient) { |
| NettyClient client = (NettyClient) obj; |
| return channel.equals(client.getNettyChannel()); |
| } |
| |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| NettyChannel other = (NettyChannel) obj; |
| if (channel == null) { |
| if (other.channel != null) { |
| return false; |
| } |
| } else if (!channel.equals(other.channel)) { |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public String toString() { |
| return "NettyChannel [channel=" + channel + "]"; |
| } |
| } |