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//
// ========================================================================
// Copyright (c) 1995 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//

package org.eclipse.jetty.client;

import org.eclipse.jetty.client.api.Connection;
import org.eclipse.jetty.util.Callback;
import org.eclipse.jetty.util.Pool;
import org.eclipse.jetty.util.annotation.ManagedAttribute;
import org.eclipse.jetty.util.annotation.ManagedObject;

@ManagedObject
public class MultiplexConnectionPool extends AbstractConnectionPool
{
    public MultiplexConnectionPool(HttpDestination destination, int maxConnections, Callback requester, int maxMultiplex)
    {
        this(destination, maxConnections, false, requester, maxMultiplex);
    }

    public MultiplexConnectionPool(HttpDestination destination, int maxConnections, boolean cache, Callback requester, int maxMultiplex)
    {
        this(destination, Pool.StrategyType.FIRST, maxConnections, cache, requester, maxMultiplex);
    }

    public MultiplexConnectionPool(HttpDestination destination, Pool.StrategyType strategy, int maxConnections, boolean cache, Callback requester, int maxMultiplex)
    {
        super(destination, new Pool<>(strategy, maxConnections, cache)
        {
            @Override
            protected int getMaxUsageCount(Connection connection)
            {
                int maxUsage = (connection instanceof MaxUsable)
                    ? ((MaxUsable)connection).getMaxUsageCount()
                    : super.getMaxUsageCount(connection);
                return maxUsage > 0 ? maxUsage : -1;
            }

            @Override
            protected int getMaxMultiplex(Connection connection)
            {
                int multiplex = (connection instanceof Multiplexable)
                    ? ((Multiplexable)connection).getMaxMultiplex()
                    : super.getMaxMultiplex(connection);
                return multiplex > 0 ? multiplex : 1;
            }
        }, requester);
        setMaxMultiplex(maxMultiplex);
    }

    @Deprecated
    public MultiplexConnectionPool(HttpDestination destination, Pool pool, Callback requester, int maxMultiplex)
    {
        super(destination, pool, requester);
        setMaxMultiplex(maxMultiplex);
    }

    @Override
    @ManagedAttribute(value = "The multiplexing factor of connections")
    public int getMaxMultiplex()
    {
        return super.getMaxMultiplex();
    }

    @Override
    public void setMaxMultiplex(int maxMultiplex)
    {
        super.setMaxMultiplex(maxMultiplex);
    }

    @Override
    @ManagedAttribute(value = "The maximum amount of times a connection is used before it gets closed")
    public int getMaxUsageCount()
    {
        return super.getMaxUsageCount();
    }

    @Override
    public void setMaxUsageCount(int maxUsageCount)
    {
        super.setMaxUsageCount(maxUsageCount);
    }
}