/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.http.nio.reactor;
import java.io.IOException;
import java.net.SocketAddress;
import java.util.Set;
/**
* ListeningIOReactor represents an I/O reactor capable of listening for
* incoming connections on one or several ports.
*
* @since 4.0
*/
public interface ListeningIOReactor extends IOReactor {
/**
* Opens a new listener endpoint with the given socket address. Once
* the endpoint is fully initialized it starts accepting incoming
* connections and propagates I/O activity notifications to the I/O event
* dispatcher.
* <p>
* {@link ListenerEndpoint#waitFor()} can be used to wait for the
* listener to be come ready to accept incoming connections.
* <p>
* {@link ListenerEndpoint#close()} can be used to shut down
* the listener even before it is fully initialized.
*
* @param address the socket address to listen on.
* @return listener endpoint.
*/
ListenerEndpoint listen(SocketAddress address);
/**
* Suspends the I/O reactor preventing it from accepting new connections on
* all active endpoints.
*
* @throws IOException in case of an I/O error.
*/
void pause()
throws IOException;
/**
* Resumes the I/O reactor restoring its ability to accept incoming
* connections on all active endpoints.
*
* @throws IOException in case of an I/O error.
*/
void resume()
throws IOException;
/**
* Returns a set of endpoints for this I/O reactor.
*
* @return set of endpoints.
*/
Set<ListenerEndpoint> getEndpoints();
}