forked from GNUsocial/gnu-social
68 lines
1.9 KiB
PHP
68 lines
1.9 KiB
PHP
<?php
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/*
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* Copyright 2011 Johannes M. Schmitt <schmittjoh@gmail.com>
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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 JMS\Serializer\Exclusion;
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use JMS\Serializer\Context;
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use JMS\Serializer\Metadata\ClassMetadata;
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use JMS\Serializer\Metadata\PropertyMetadata;
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/**
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* @author Adrien Brault <adrien.brault@gmail.com>
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*/
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class DepthExclusionStrategy implements ExclusionStrategyInterface
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{
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/**
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* {@inheritDoc}
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*/
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public function shouldSkipClass(ClassMetadata $metadata, Context $context)
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{
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return $this->isTooDeep($context);
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}
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/**
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* {@inheritDoc}
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*/
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public function shouldSkipProperty(PropertyMetadata $property, Context $context)
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{
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return $this->isTooDeep($context);
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}
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private function isTooDeep(Context $context)
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{
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$depth = $context->getDepth();
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$metadataStack = $context->getMetadataStack();
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$nthProperty = 0;
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// iterate from the first added items to the lasts
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for ($i = $metadataStack->count() - 1; $i > 0; $i--) {
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$metadata = $metadataStack[$i];
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if ($metadata instanceof PropertyMetadata) {
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$nthProperty++;
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$relativeDepth = $depth - $nthProperty;
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if (null !== $metadata->maxDepth && $relativeDepth > $metadata->maxDepth) {
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return true;
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}
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}
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}
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return false;
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}
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}
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