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1 <?php
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2
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3 namespace Drupal\serialization\Encoder;
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4
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5 use Symfony\Component\Serializer\Encoder\EncoderInterface;
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6 use Symfony\Component\Serializer\Encoder\DecoderInterface;
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7 use Symfony\Component\Serializer\Encoder\XmlEncoder as BaseXmlEncoder;
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8 use Symfony\Component\Serializer\SerializerAwareInterface;
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9 use Symfony\Component\Serializer\SerializerAwareTrait;
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10
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11 /**
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12 * Adds XML support for serializer.
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13 *
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14 * This acts as a wrapper class for Symfony's XmlEncoder so that it is not
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15 * implementing NormalizationAwareInterface, and can be normalized externally.
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16 *
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17 * @internal
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18 * This encoder should not be used directly. Rather, use the `serializer`
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19 * service.
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20 */
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21 class XmlEncoder implements SerializerAwareInterface, EncoderInterface, DecoderInterface {
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22
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23 use SerializerAwareTrait;
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24
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25 /**
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26 * The formats that this Encoder supports.
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27 *
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28 * @var array
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29 */
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30 protected static $format = ['xml'];
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31
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32 /**
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33 * An instance of the Symfony XmlEncoder to perform the actual encoding.
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34 *
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35 * @var \Symfony\Component\Serializer\Encoder\XmlEncoder
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36 */
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37 protected $baseEncoder;
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38
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39 /**
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40 * Gets the base encoder instance.
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41 *
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42 * @return \Symfony\Component\Serializer\Encoder\XmlEncoder
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43 * The base encoder.
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44 */
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45 public function getBaseEncoder() {
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46 if (!isset($this->baseEncoder)) {
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47 $this->baseEncoder = new BaseXmlEncoder();
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48 $this->baseEncoder->setSerializer($this->serializer);
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49 }
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50
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51 return $this->baseEncoder;
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52 }
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53
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54 /**
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55 * Sets the base encoder instance.
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56 *
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57 * @param \Symfony\Component\Serializer\Encoder\XmlEncoder $encoder
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58 */
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59 public function setBaseEncoder($encoder) {
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60 $this->baseEncoder = $encoder;
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61 }
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62
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63 /**
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64 * {@inheritdoc}
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65 */
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66 public function encode($data, $format, array $context = []) {
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67 return $this->getBaseEncoder()->encode($data, $format, $context);
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68 }
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69
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70 /**
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71 * {@inheritdoc}
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72 */
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73 public function supportsEncoding($format) {
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74 return in_array($format, static::$format);
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75 }
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76
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77 /**
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78 * {@inheritdoc}
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79 */
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80 public function decode($data, $format, array $context = []) {
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81 return $this->getBaseEncoder()->decode($data, $format, $context);
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82 }
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83
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84 /**
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85 * {@inheritdoc}
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86 */
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87 public function supportsDecoding($format) {
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88 return in_array($format, static::$format);
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89 }
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90
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91 }
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