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<?php
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/**
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *
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 * This software consists of voluntary contributions made by many individuals
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 * and is licensed under the LGPL. For more information please see
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 * <http://phing.info>.
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 */
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/**
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 * @author    Siad Ardroumli <siad.ardroumli@gmail.com>
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 * @package   phing.listener.statistics
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 */
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class Series
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{
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    private $stack;
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    /**
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     * @var Duration[] $list
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     */
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    private $list = [];
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    public function __construct()
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    {
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        $this->stack = new SplStack();
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    }
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    public function add(Duration $duration)
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    {
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        $this->list[] = $duration;
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        $this->stack->push($duration);
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    }
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    public function setFinishTime($time)
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    {
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        $duration = $this->stack->pop();
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        $duration->setFinishTime($time);
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    }
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    public function getTimes()
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    {
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        return array_map(
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            function (Duration $elem) {
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                return $elem->getTime();
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            },
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            $this->list
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        );
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    }
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    public function getTotalTime()
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    {
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        return array_sum($this->getTimes());
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    }
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    public function getAverageTime()
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    {
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        if (count($this->list) === 0) {
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            return 0;
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        }
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        return $this->getTotalTime() / count($this->list);
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    }
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    public function size()
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    {
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        return count($this->list);
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    }
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    public function current()
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    {
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        if ($this->stack->isEmpty()) {
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            $this->stack->push(new Duration());
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        }
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        return $this->stack->top();
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    }
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}

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