/*
 * 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.jmeter.protocol.http.sampler.hc;

import java.io.IOException;
import java.util.Date;
import java.util.concurrent.TimeUnit;

import org.apache.http.conn.OperatedClientConnection;
import org.apache.http.conn.routing.HttpRoute;
import org.apache.http.conn.routing.RouteTracker;
import org.apache.http.pool.PoolEntry;
import org.slf4j.Logger;

/**
 * Implementation of {@link PoolEntry} 
 * @since 3.2
 */
public class HttpPoolEntry extends PoolEntry<HttpRoute, OperatedClientConnection> {

    private final Logger log;
    private final RouteTracker tracker;

    public HttpPoolEntry(
            final Logger log,
            final String id,
            final HttpRoute route,
            final OperatedClientConnection conn,
            final long timeToLive, final TimeUnit tunit) {
        super(id, route, conn, timeToLive, tunit);
        this.log = log;
        this.tracker = new RouteTracker(route);
    }

    @Override
    @SuppressWarnings("sync-override")
    /**
     * No synchronization added as the override is just for logging.
     * Adding synhronized within logging might introduce too much locking
     */
    public boolean isExpired(final long now) {
        final boolean expired = super.isExpired(now);
        if (expired && this.log.isDebugEnabled()) {
            this.log.debug("Connection {} expired at {}", this, new Date(getExpiry()));
        }
        return expired;
    }

    RouteTracker getTracker() {
        return this.tracker;
    }

    HttpRoute getPlannedRoute() {
        return getRoute();
    }

    HttpRoute getEffectiveRoute() {
        return this.tracker.toRoute();
    }

    @Override
    public boolean isClosed() {
        final OperatedClientConnection conn = getConnection();
        return !conn.isOpen();
    }

    @Override
    public void close() {
        final OperatedClientConnection conn = getConnection();
        try {
            conn.close();
        } catch (final IOException ex) {
            this.log.debug("I/O error closing connection", ex);
        }
    }
}
