/*
 * ====================================================================
 * 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.hc.core5.pool;

import java.io.IOException;
import java.time.Clock;

import org.apache.hc.core5.io.CloseMode;
import org.apache.hc.core5.io.ModalCloseable;
import org.apache.hc.core5.util.TimeValue;

final class PoolTestSupport {

    private PoolTestSupport() {
    }

    static final class DummyConn implements ModalCloseable {

        private volatile boolean closed;

        @Override
        public void close(final CloseMode closeMode) {
            this.closed = true;
        }

        @Override
        public void close() throws IOException {
            close(CloseMode.GRACEFUL);
        }

        boolean isClosed() {
            return closed;
        }

    }

    static final DisposalCallback<DummyConn> DISPOSAL = DummyConn::close;

    static ManagedConnPool<String, DummyConn> createPool(
            final PoolConcurrencyPolicy policy,
            final int defaultMaxPerRoute,
            final int maxTotal,
            final Clock clock) {

        final TimeValue ttl = TimeValue.NEG_ONE_MILLISECOND;
        final PoolReusePolicy reusePolicy = PoolReusePolicy.LIFO;

        switch (policy) {
            case STRICT: {
                return new StrictConnPool<>(
                        defaultMaxPerRoute,
                        maxTotal,
                        ttl,
                        reusePolicy,
                        DISPOSAL,
                        null,
                        clock);
            }
            case LAX: {
                return new LaxConnPool<>(
                        defaultMaxPerRoute,
                        ttl,
                        reusePolicy,
                        DISPOSAL,
                        null,
                        clock);
            }
            case OFFLOCK: {
                return new RouteSegmentedConnPool<>(
                        defaultMaxPerRoute,
                        maxTotal,
                        ttl,
                        reusePolicy,
                        DISPOSAL,
                        null,
                        clock);
            }
            default: {
                throw new IllegalStateException("Unexpected: " + policy);
            }
        }
    }

}