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/*
 * Licensed 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 com.gh.bmd.jrt.channel;

import com.gh.bmd.jrt.util.TimeDuration;

import java.util.Collection;
import java.util.concurrent.TimeUnit;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;

/**
 * Interface defining a transport channel.
 * 
 * A transport channel is useful to make other asynchronous tasks communicate with a routine.

 * The channel output can be passed to a routine input channel in order to feed it with data coming
 * asynchronously from other sources. Note however that, in any case, the close()
 * method must be called in order to correctly terminate the invocation lifecycle.
 * 

 * Created by davide-maestroni on 10/25/14.
 *
 * @param  the data type.
 */
public interface TransportChannel extends InputChannel, OutputChannel {

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel after(@Nonnull TimeDuration delay);

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel after(long delay, @Nonnull TimeUnit timeUnit);

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel now();

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel orderByCall();

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel orderByChance();

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel orderByDelay();

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel pass(@Nullable OutputChannel channel);

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel pass(@Nullable Iterable inputs);

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel pass(@Nullable DATA input);

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel pass(@Nullable DATA... inputs);

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel afterMax(@Nonnull TimeDuration timeout);

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel afterMax(long timeout, @Nonnull TimeUnit timeUnit);

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel allInto(@Nonnull Collection results);

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel eventually();

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel eventuallyAbort();

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel eventuallyExit();

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel eventuallyThrow();

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel immediately();

    /**
     * {@inheritDoc}
     */
    @Nonnull
    TransportChannel passTo(@Nonnull OutputConsumer consumer);

    /**
     * Returns this channel as an input one.
     *
     * @return this channel.
     */
    @Nonnull
    InputChannel asInput();

    /**
     * Returns this channel as an output one.
     *
     * @return this channel.
     */
    @Nonnull
    OutputChannel asOutput();

    /**
     * Closes the channel input.

     * If the channel is already closed, this method has no effect.
     * 
     * Note that this method must be always called when done with the channel.
     *
     * @return this channel.
     */
    @Nonnull
    TransportChannel close();
}