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638 lines
16 KiB
PHP
638 lines
16 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OC\FilesMetadata\Model;
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use JsonException;
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use OCP\FilesMetadata\Exceptions\FilesMetadataKeyFormatException;
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use OCP\FilesMetadata\Exceptions\FilesMetadataNotFoundException;
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use OCP\FilesMetadata\Exceptions\FilesMetadataTypeException;
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use OCP\FilesMetadata\Model\IFilesMetadata;
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use OCP\FilesMetadata\Model\IMetadataValueWrapper;
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/**
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* Model that represent metadata linked to a specific file.
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*
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* @inheritDoc
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* @since 28.0.0
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*/
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class FilesMetadata implements IFilesMetadata {
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/** @var array<string, MetadataValueWrapper> */
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private array $metadata = [];
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private bool $updated = false;
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private int $lastUpdate = 0;
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private string $syncToken = '';
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private ?int $storageId = null;
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public function __construct(
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private int $fileId = 0
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) {
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}
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/**
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* @inheritDoc
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* @return int related file id
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* @since 28.0.0
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*/
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public function getFileId(): int {
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return $this->fileId;
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}
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public function getStorageId(): ?int {
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return $this->storageId;
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}
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/**
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* Set which storage the file this metadata belongs to.
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*
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* This helps with sharded filecache setups to know where to store the metadata
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*
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* @param int $storageId
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* @return void
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*/
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public function setStorageId(int $storageId): void {
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$this->storageId = $storageId;
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}
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/**
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* @inheritDoc
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* @return int timestamp
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* @since 28.0.0
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*/
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public function lastUpdateTimestamp(): int {
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return $this->lastUpdate;
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}
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/**
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* @inheritDoc
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* @return string token
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* @since 28.0.0
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*/
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public function getSyncToken(): string {
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return $this->syncToken;
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}
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/**
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* @inheritDoc
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* @return string[] list of keys
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* @since 28.0.0
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*/
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public function getKeys(): array {
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return array_keys($this->metadata);
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}
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/**
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* @param string $needle metadata key to search
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*
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* @inheritDoc
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* @return bool TRUE if key exist
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* @since 28.0.0
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*/
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public function hasKey(string $needle): bool {
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return (in_array($needle, $this->getKeys()));
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}
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/**
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* @inheritDoc
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* @return string[] list of indexes
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* @since 28.0.0
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*/
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public function getIndexes(): array {
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$indexes = [];
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foreach ($this->getKeys() as $key) {
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if ($this->metadata[$key]->isIndexed()) {
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$indexes[] = $key;
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}
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}
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return $indexes;
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}
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/**
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* @param string $key metadata key
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*
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* @inheritDoc
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* @return bool TRUE if key exists and is set as indexed
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* @since 28.0.0
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*/
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public function isIndex(string $key): bool {
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return $this->metadata[$key]?->isIndexed() ?? false;
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}
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/**
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* @param string $key metadata key
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*
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* @inheritDoc
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* @return int edit permission
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* @throws FilesMetadataNotFoundException
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* @since 28.0.0
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*/
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public function getEditPermission(string $key): int {
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if (!array_key_exists($key, $this->metadata)) {
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throw new FilesMetadataNotFoundException();
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}
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return $this->metadata[$key]->getEditPermission();
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}
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/**
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* @param string $key metadata key
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* @param int $permission edit permission
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*
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* @inheritDoc
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* @throws FilesMetadataNotFoundException
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* @since 28.0.0
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*/
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public function setEditPermission(string $key, int $permission): void {
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if (!array_key_exists($key, $this->metadata)) {
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throw new FilesMetadataNotFoundException();
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}
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$this->metadata[$key]->setEditPermission($permission);
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}
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public function getEtag(string $key): string {
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if (!array_key_exists($key, $this->metadata)) {
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return '';
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}
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return $this->metadata[$key]->getEtag();
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}
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public function setEtag(string $key, string $etag): void {
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if (!array_key_exists($key, $this->metadata)) {
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throw new FilesMetadataNotFoundException();
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}
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$this->metadata[$key]->setEtag($etag);
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}
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/**
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* @param string $key metadata key
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*
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* @inheritDoc
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* @return string metadata value
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* @throws FilesMetadataNotFoundException
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* @throws FilesMetadataTypeException
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* @since 28.0.0
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*/
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public function getString(string $key): string {
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if (!array_key_exists($key, $this->metadata)) {
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throw new FilesMetadataNotFoundException();
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}
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return $this->metadata[$key]->getValueString();
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}
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/**
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* @param string $key metadata key
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*
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* @inheritDoc
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* @return int metadata value
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* @throws FilesMetadataNotFoundException
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* @throws FilesMetadataTypeException
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* @since 28.0.0
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*/
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public function getInt(string $key): int {
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if (!array_key_exists($key, $this->metadata)) {
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throw new FilesMetadataNotFoundException();
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}
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return $this->metadata[$key]->getValueInt();
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}
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/**
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* @param string $key metadata key
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*
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* @inheritDoc
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* @return float metadata value
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* @throws FilesMetadataNotFoundException
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* @throws FilesMetadataTypeException
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* @since 28.0.0
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*/
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public function getFloat(string $key): float {
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if (!array_key_exists($key, $this->metadata)) {
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throw new FilesMetadataNotFoundException();
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}
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return $this->metadata[$key]->getValueFloat();
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}
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/**
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* @param string $key metadata key
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*
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* @inheritDoc
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* @return bool metadata value
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* @throws FilesMetadataNotFoundException
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* @throws FilesMetadataTypeException
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* @since 28.0.0
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*/
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public function getBool(string $key): bool {
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if (!array_key_exists($key, $this->metadata)) {
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throw new FilesMetadataNotFoundException();
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}
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return $this->metadata[$key]->getValueBool();
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}
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/**
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* @param string $key metadata key
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*
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* @inheritDoc
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* @return array metadata value
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* @throws FilesMetadataNotFoundException
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* @throws FilesMetadataTypeException
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* @since 28.0.0
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*/
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public function getArray(string $key): array {
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if (!array_key_exists($key, $this->metadata)) {
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throw new FilesMetadataNotFoundException();
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}
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return $this->metadata[$key]->getValueArray();
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}
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/**
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* @param string $key metadata key
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*
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* @inheritDoc
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* @return string[] metadata value
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* @throws FilesMetadataNotFoundException
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* @throws FilesMetadataTypeException
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* @since 28.0.0
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*/
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public function getStringList(string $key): array {
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if (!array_key_exists($key, $this->metadata)) {
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throw new FilesMetadataNotFoundException();
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}
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return $this->metadata[$key]->getValueStringList();
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}
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/**
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* @param string $key metadata key
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*
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* @inheritDoc
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* @return int[] metadata value
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* @throws FilesMetadataNotFoundException
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* @throws FilesMetadataTypeException
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* @since 28.0.0
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*/
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public function getIntList(string $key): array {
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if (!array_key_exists($key, $this->metadata)) {
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throw new FilesMetadataNotFoundException();
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}
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return $this->metadata[$key]->getValueIntList();
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}
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/**
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* @param string $key metadata key
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*
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* @inheritDoc
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* @return string value type
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* @throws FilesMetadataNotFoundException
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* @see IMetadataValueWrapper::TYPE_STRING
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* @see IMetadataValueWrapper::TYPE_INT
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* @see IMetadataValueWrapper::TYPE_FLOAT
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* @see IMetadataValueWrapper::TYPE_BOOL
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* @see IMetadataValueWrapper::TYPE_ARRAY
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* @see IMetadataValueWrapper::TYPE_STRING_LIST
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* @see IMetadataValueWrapper::TYPE_INT_LIST
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* @since 28.0.0
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*/
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public function getType(string $key): string {
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if (!array_key_exists($key, $this->metadata)) {
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throw new FilesMetadataNotFoundException();
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}
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return $this->metadata[$key]->getType();
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}
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/**
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* @param string $key metadata key
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* @param string $value metadata value
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* @param bool $index set TRUE if value must be indexed
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*
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* @inheritDoc
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* @return self
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* @throws FilesMetadataKeyFormatException
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* @since 28.0.0
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*/
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public function setString(string $key, string $value, bool $index = false): IFilesMetadata {
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$this->confirmKeyFormat($key);
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try {
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if ($this->getString($key) === $value && $index === $this->isIndex($key)) {
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return $this; // we ignore if value and index have not changed
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}
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} catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
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// if value does not exist, or type has changed, we keep on the writing
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}
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$meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_STRING);
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$this->updated = true;
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$this->metadata[$key] = $meta->setValueString($value)->setIndexed($index);
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return $this;
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}
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/**
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* @param string $key metadata key
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* @param int $value metadata value
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* @param bool $index set TRUE if value must be indexed
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*
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* @inheritDoc
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* @return self
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* @throws FilesMetadataKeyFormatException
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* @since 28.0.0
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*/
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public function setInt(string $key, int $value, bool $index = false): IFilesMetadata {
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$this->confirmKeyFormat($key);
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try {
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if ($this->getInt($key) === $value && $index === $this->isIndex($key)) {
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return $this; // we ignore if value have not changed
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}
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} catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
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// if value does not exist, or type has changed, we keep on the writing
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}
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$meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_INT);
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$this->metadata[$key] = $meta->setValueInt($value)->setIndexed($index);
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$this->updated = true;
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return $this;
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}
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/**
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* @param string $key metadata key
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* @param float $value metadata value
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*
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* @inheritDoc
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* @return self
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* @throws FilesMetadataKeyFormatException
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* @since 28.0.0
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*/
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public function setFloat(string $key, float $value, bool $index = false): IFilesMetadata {
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$this->confirmKeyFormat($key);
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try {
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if ($this->getFloat($key) === $value && $index === $this->isIndex($key)) {
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return $this; // we ignore if value have not changed
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}
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} catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
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// if value does not exist, or type has changed, we keep on the writing
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}
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$meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_FLOAT);
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$this->metadata[$key] = $meta->setValueFloat($value)->setIndexed($index);
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$this->updated = true;
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return $this;
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}
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/**
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* @param string $key metadata key
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* @param bool $value metadata value
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* @param bool $index set TRUE if value must be indexed
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*
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* @inheritDoc
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* @return self
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* @throws FilesMetadataKeyFormatException
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* @since 28.0.0
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*/
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public function setBool(string $key, bool $value, bool $index = false): IFilesMetadata {
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$this->confirmKeyFormat($key);
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try {
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if ($this->getBool($key) === $value && $index === $this->isIndex($key)) {
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return $this; // we ignore if value have not changed
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}
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} catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
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// if value does not exist, or type has changed, we keep on the writing
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}
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$meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_BOOL);
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$this->metadata[$key] = $meta->setValueBool($value)->setIndexed($index);
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$this->updated = true;
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return $this;
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}
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/**
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* @param string $key metadata key
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* @param array $value metadata value
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*
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* @inheritDoc
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* @return self
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* @throws FilesMetadataKeyFormatException
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* @since 28.0.0
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*/
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public function setArray(string $key, array $value): IFilesMetadata {
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$this->confirmKeyFormat($key);
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try {
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if ($this->getArray($key) === $value) {
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return $this; // we ignore if value have not changed
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}
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} catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
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// if value does not exist, or type has changed, we keep on the writing
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}
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$meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_ARRAY);
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$this->metadata[$key] = $meta->setValueArray($value);
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$this->updated = true;
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return $this;
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}
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/**
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* @param string $key metadata key
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* @param string[] $value metadata value
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* @param bool $index set TRUE if each values from the list must be indexed
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*
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* @inheritDoc
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* @return self
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* @throws FilesMetadataKeyFormatException
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* @since 28.0.0
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*/
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public function setStringList(string $key, array $value, bool $index = false): IFilesMetadata {
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$this->confirmKeyFormat($key);
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try {
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if ($this->getStringList($key) === $value) {
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return $this; // we ignore if value have not changed
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}
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} catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
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// if value does not exist, or type has changed, we keep on the writing
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}
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$meta = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_STRING_LIST);
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$this->metadata[$key] = $meta->setValueStringList($value)->setIndexed($index);
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$this->updated = true;
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return $this;
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}
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/**
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* @param string $key metadata key
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* @param int[] $value metadata value
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* @param bool $index set TRUE if each values from the list must be indexed
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*
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* @inheritDoc
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* @return self
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* @throws FilesMetadataKeyFormatException
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* @since 28.0.0
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*/
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public function setIntList(string $key, array $value, bool $index = false): IFilesMetadata {
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$this->confirmKeyFormat($key);
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try {
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if ($this->getIntList($key) === $value) {
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return $this; // we ignore if value have not changed
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}
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} catch (FilesMetadataNotFoundException|FilesMetadataTypeException $e) {
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// if value does not exist, or type has changed, we keep on the writing
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}
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$valueWrapper = new MetadataValueWrapper(IMetadataValueWrapper::TYPE_INT_LIST);
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$this->metadata[$key] = $valueWrapper->setValueIntList($value)->setIndexed($index);
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$this->updated = true;
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return $this;
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}
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/**
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* @param string $key metadata key
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*
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* @inheritDoc
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* @return self
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* @since 28.0.0
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*/
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public function unset(string $key): IFilesMetadata {
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if (!array_key_exists($key, $this->metadata)) {
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return $this;
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}
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unset($this->metadata[$key]);
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$this->updated = true;
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return $this;
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}
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/**
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* @param string $keyPrefix metadata key prefix
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*
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* @inheritDoc
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* @return self
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* @since 28.0.0
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*/
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public function removeStartsWith(string $keyPrefix): IFilesMetadata {
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if ($keyPrefix === '') {
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return $this;
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}
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foreach ($this->getKeys() as $key) {
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if (str_starts_with($key, $keyPrefix)) {
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$this->unset($key);
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}
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}
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return $this;
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}
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/**
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* @param string $key
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*
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* @return void
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* @throws FilesMetadataKeyFormatException
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*/
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private function confirmKeyFormat(string $key): void {
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$acceptedChars = ['-', '_'];
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if (ctype_alnum(str_replace($acceptedChars, '', $key))) {
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return;
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}
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throw new FilesMetadataKeyFormatException('key can only contains alphanumerical characters, and dash (-, _)');
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}
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/**
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* @inheritDoc
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* @return bool TRUE if metadata have been modified
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* @since 28.0.0
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*/
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public function updated(): bool {
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return $this->updated;
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}
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public function jsonSerialize(bool $emptyValues = false): array {
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$data = [];
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foreach ($this->metadata as $metaKey => $metaValueWrapper) {
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$data[$metaKey] = $metaValueWrapper->jsonSerialize($emptyValues);
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}
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return $data;
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}
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/**
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* @return array<string, string|int|bool|float|string[]|int[]>
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*/
|
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public function asArray(): array {
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$data = [];
|
|
foreach ($this->metadata as $metaKey => $metaValueWrapper) {
|
|
try {
|
|
$data[$metaKey] = $metaValueWrapper->getValueAny();
|
|
} catch (FilesMetadataNotFoundException $e) {
|
|
// ignore exception
|
|
}
|
|
}
|
|
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* @param array $data
|
|
*
|
|
* @inheritDoc
|
|
* @return IFilesMetadata
|
|
* @since 28.0.0
|
|
*/
|
|
public function import(array $data): IFilesMetadata {
|
|
foreach ($data as $k => $v) {
|
|
$valueWrapper = new MetadataValueWrapper();
|
|
$this->metadata[$k] = $valueWrapper->import($v);
|
|
}
|
|
$this->updated = false;
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* import data from database to configure this model
|
|
*
|
|
* @param array $data
|
|
* @param string $prefix
|
|
*
|
|
* @return IFilesMetadata
|
|
* @throws FilesMetadataNotFoundException
|
|
* @since 28.0.0
|
|
*/
|
|
public function importFromDatabase(array $data, string $prefix = ''): IFilesMetadata {
|
|
try {
|
|
$this->syncToken = $data[$prefix . 'sync_token'] ?? '';
|
|
|
|
return $this->import(
|
|
json_decode(
|
|
$data[$prefix . 'json'] ?? '[]',
|
|
true,
|
|
512,
|
|
JSON_THROW_ON_ERROR
|
|
)
|
|
);
|
|
} catch (JsonException) {
|
|
throw new FilesMetadataNotFoundException();
|
|
}
|
|
}
|
|
}
|