/*
* Copyright 2012 The Netty Project
*
* The Netty Project 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 io.netty.channel;
import java.net.
SocketAddress;
/**
* A skeletal server-side {@link Channel} implementation. A server-side
* {@link Channel} does not allow the following operations:
* <ul>
* <li>{@link #connect(SocketAddress, ChannelPromise)}</li>
* <li>{@link #disconnect(ChannelPromise)}</li>
* <li>{@link #write(Object, ChannelPromise)}</li>
* <li>{@link #flush()}</li>
* <li>and the shortcut methods which calls the methods mentioned above
* </ul>
*/
public abstract class
AbstractServerChannel extends
AbstractChannel implements
ServerChannel {
private static final
ChannelMetadata METADATA = new
ChannelMetadata(false, 16);
/**
* Creates a new instance.
*/
protected
AbstractServerChannel() {
super(null);
}
@
Override
public
ChannelMetadata metadata() {
return
METADATA;
}
@
Override
public
SocketAddress remoteAddress() {
return null;
}
@
Override
protected
SocketAddress remoteAddress0() {
return null;
}
@
Override
protected void
doDisconnect() throws
Exception {
throw new
UnsupportedOperationException();
}
@
Override
protected
AbstractUnsafe newUnsafe() {
return new
DefaultServerUnsafe();
}
@
Override
protected void
doWrite(
ChannelOutboundBuffer in) throws
Exception {
throw new
UnsupportedOperationException();
}
@
Override
protected final
Object filterOutboundMessage(
Object msg) {
throw new
UnsupportedOperationException();
}
private final class
DefaultServerUnsafe extends
AbstractUnsafe {
@
Override
public void
connect(
SocketAddress remoteAddress,
SocketAddress localAddress,
ChannelPromise promise) {
safeSetFailure(
promise, new
UnsupportedOperationException());
}
}
}