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-rw-r--r--vendor/ramsey/uuid/src/Codec/TimestampFirstCombCodec.php107
1 files changed, 107 insertions, 0 deletions
diff --git a/vendor/ramsey/uuid/src/Codec/TimestampFirstCombCodec.php b/vendor/ramsey/uuid/src/Codec/TimestampFirstCombCodec.php
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@@ -0,0 +1,107 @@
+<?php
+/**
+ * This file is part of the ramsey/uuid library
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
+ * @license http://opensource.org/licenses/MIT MIT
+ * @link https://benramsey.com/projects/ramsey-uuid/ Documentation
+ * @link https://packagist.org/packages/ramsey/uuid Packagist
+ * @link https://github.com/ramsey/uuid GitHub
+ */
+namespace Ramsey\Uuid\Codec;
+
+use Ramsey\Uuid\UuidInterface;
+
+/**
+ * TimestampLastCombCodec encodes and decodes COMB UUIDs which have the timestamp as the first 48 bits.
+ * To be used with MySQL, PostgreSQL, Oracle.
+ */
+class TimestampFirstCombCodec extends StringCodec
+{
+ /**
+ * Encodes a UuidInterface as a string representation of a timestamp first COMB UUID
+ *
+ * @param UuidInterface $uuid
+ *
+ * @return string Hexadecimal string representation of a GUID
+ */
+ public function encode(UuidInterface $uuid)
+ {
+ $sixPieceComponents = array_values($uuid->getFieldsHex());
+
+ $this->swapTimestampAndRandomBits($sixPieceComponents);
+
+ return vsprintf(
+ '%08s-%04s-%04s-%02s%02s-%012s',
+ $sixPieceComponents
+ );
+ }
+
+ /**
+ * Encodes a UuidInterface as a binary representation of timestamp first COMB UUID
+ *
+ * @param UuidInterface $uuid
+ *
+ * @return string Binary string representation of timestamp first COMB UUID
+ */
+ public function encodeBinary(UuidInterface $uuid)
+ {
+ $stringEncoding = $this->encode($uuid);
+
+ return hex2bin(str_replace('-', '', $stringEncoding));
+ }
+
+ /**
+ * Decodes a string representation of timestamp first COMB UUID into a UuidInterface object instance
+ *
+ * @param string $encodedUuid
+ *
+ * @return UuidInterface
+ * @throws \Ramsey\Uuid\Exception\InvalidUuidStringException
+ */
+ public function decode($encodedUuid)
+ {
+ $fivePieceComponents = $this->extractComponents($encodedUuid);
+
+ $this->swapTimestampAndRandomBits($fivePieceComponents);
+
+ return $this->getBuilder()->build($this, $this->getFields($fivePieceComponents));
+ }
+
+ /**
+ * Decodes a binary representation of timestamp first COMB UUID into a UuidInterface object instance
+ *
+ * @param string $bytes
+ *
+ * @return UuidInterface
+ * @throws \Ramsey\Uuid\Exception\InvalidUuidStringException
+ */
+ public function decodeBytes($bytes)
+ {
+ return $this->decode(bin2hex($bytes));
+ }
+
+ /**
+ * Swaps the first 48 bits with the last 48 bits
+ *
+ * @param array $components An array of UUID components (the UUID exploded on its dashes)
+ *
+ * @return void
+ */
+ protected function swapTimestampAndRandomBits(array &$components)
+ {
+ $last48Bits = $components[4];
+ if (count($components) == 6) {
+ $last48Bits = $components[5];
+ $components[5] = $components[0] . $components[1];
+ } else {
+ $components[4] = $components[0] . $components[1];
+ }
+
+ $components[0] = substr($last48Bits, 0, 8);
+ $components[1] = substr($last48Bits, 8, 4);
+ }
+}