org.apache.dubbo.remoting.transport.grizzly.GrizzlyHandler Maven / Gradle / Ivy
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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.transport.grizzly;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.logger.Logger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.common.utils.StringUtils;
import org.apache.dubbo.remoting.ChannelHandler;
import org.apache.dubbo.remoting.RemotingException;
import org.glassfish.grizzly.Connection;
import org.glassfish.grizzly.filterchain.BaseFilter;
import org.glassfish.grizzly.filterchain.FilterChainContext;
import org.glassfish.grizzly.filterchain.NextAction;
import java.io.IOException;
/**
* GrizzlyHandler
*/
public class GrizzlyHandler extends BaseFilter {
private static final Logger logger = LoggerFactory.getLogger(GrizzlyHandler.class);
private final URL url;
private final ChannelHandler handler;
public GrizzlyHandler(URL url, ChannelHandler handler) {
this.url = url;
this.handler = handler;
}
@Override
public NextAction handleConnect(FilterChainContext ctx) throws IOException {
Connection connection = ctx.getConnection();
GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
try {
handler.connected(channel);
} catch (RemotingException e) {
throw new IOException(StringUtils.toString(e));
} finally {
GrizzlyChannel.removeChannelIfDisconnected(connection);
}
return ctx.getInvokeAction();
}
@Override
public NextAction handleClose(FilterChainContext ctx) throws IOException {
Connection connection = ctx.getConnection();
GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
try {
handler.disconnected(channel);
} catch (RemotingException e) {
throw new IOException(StringUtils.toString(e));
} finally {
GrizzlyChannel.removeChannelIfDisconnected(connection);
}
return ctx.getInvokeAction();
}
@Override
public NextAction handleRead(FilterChainContext ctx) throws IOException {
Connection connection = ctx.getConnection();
GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
try {
handler.received(channel, ctx.getMessage());
} catch (RemotingException e) {
throw new IOException(StringUtils.toString(e));
} finally {
GrizzlyChannel.removeChannelIfDisconnected(connection);
}
return ctx.getInvokeAction();
}
@Override
public NextAction handleWrite(FilterChainContext ctx) throws IOException {
Connection connection = ctx.getConnection();
GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
try {
handler.sent(channel, ctx.getMessage());
} catch (RemotingException e) {
throw new IOException(StringUtils.toString(e));
} finally {
GrizzlyChannel.removeChannelIfDisconnected(connection);
}
return ctx.getInvokeAction();
}
@Override
public void exceptionOccurred(FilterChainContext ctx, Throwable error) {
Connection connection = ctx.getConnection();
GrizzlyChannel channel = GrizzlyChannel.getOrAddChannel(connection, url, handler);
try {
handler.caught(channel, error);
} catch (RemotingException e) {
logger.error("RemotingException on channel " + channel, e);
} finally {
GrizzlyChannel.removeChannelIfDisconnected(connection);
}
}
}