provider/fastbin/src/main/java/org/apache/aries/rsa/provider/fastbin/io/Transport.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.aries.rsa.provider.fastbin.io;

import org.apache.aries.rsa.provider.fastbin.api.Dispatched;
import org.fusesource.hawtdispatch.DispatchQueue;

/**
 * Represents an abstract connection.  It can be a client side or server side connection.
 *
 */
public interface Transport extends Service, Dispatched {

    boolean full();

    /**
     * A one way asynchronous send of a command.  Only sent if the the transport is not full.
     *
     * @param command
     * @return true if the command was accepted.
     */
    boolean offer(Object command);

    /**
     * Returns the current transport listener
     *
     * @return
     */
    TransportListener getTransportListener();

    /**
     * Registers an inbound command listener
     *
     * @param commandListener
     */
    void setTransportListener(TransportListener commandListener);

    /**
     * Sets the dispatch queue used by the transport
     *
     * @param queue
     */
    void setDispatchQueue(DispatchQueue queue);

    /**
     * suspend delivery of commands.
     */
    void suspendRead();

    /**
     * resume delivery of commands.
     */
    void resumeRead();

    /**
     * @return the remote address for this connection
     */
    String getRemoteAddress();

    /**
     * @return true if the transport is disposed
     */
    boolean isDisposed();

    /**
     * @return true if the transport is connected
     */
    boolean isConnected();

    /**
     * @return The protocol codec for the transport.
     */
    ProtocolCodec getProtocolCodec();

    /**
     * Sets the protocol codec for the transport
     * @param protocolCodec
     */
    void setProtocolCodec(ProtocolCodec protocolCodec);

}