Completed
Pull Request — develop (#188)
by A.
07:09 queued 03:37
created

ProjectorCollection::contains()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
c 0
b 0
f 0
dl 0
loc 4
rs 10
cc 1
eloc 2
nc 1
nop 1
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<?php
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/**
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 * Copyright 2017 SURFnet B.V.
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *     http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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namespace Surfnet\StepupMiddleware\MiddlewareBundle\EventSourcing;
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use ArrayIterator;
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use Broadway\ReadModel\ProjectorInterface;
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use IteratorAggregate;
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use Surfnet\StepupMiddleware\MiddlewareBundle\Exception\InvalidArgumentException;
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final class ProjectorCollection implements IteratorAggregate
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{
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    /**
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     * @var ProjectorInterface[]
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     */
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    private $projectors = [];
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    /**
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     * @param ProjectorInterface $projector
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     */
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    public function add(ProjectorInterface $projector)
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    {
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        $this->projectors[get_class($projector)] = $projector;
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    }
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    /**
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     * @param array $projectorNames
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     * @return ProjectorCollection
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     */
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    public function selectByNames(array $projectorNames)
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    {
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        $subsetCollection = new ProjectorCollection;
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        foreach ($projectorNames as $projectorName) {
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            if (!array_key_exists($projectorName, $this->projectors)) {
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                throw new InvalidArgumentException(
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                    sprintf(
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                        'Cannot select a subset of projectors, because projector "%s" is not present in the collection',
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                        $projectorName
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                    )
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                );
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            }
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            $subsetCollection->projectors[$projectorName] = $this->projectors;
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        }
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        return $subsetCollection;
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    }
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    /**
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     * @param ProjectorInterface $projector
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     * @return bool
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     */
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    public function contains(ProjectorInterface $projector)
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    {
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        return array_key_exists(get_class($projector), $this->projectors);
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    }
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    public function getIterator()
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    {
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        return new ArrayIterator($this->projectors);
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    }
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}
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