134 lines
3.6 KiB
PHP
134 lines
3.6 KiB
PHP
<?php
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namespace SilverStripe\Filesystem\Storage;
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/**
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* Represents a container for a specific asset.
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*
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* This is used as a use-agnostic interface to a single asset backed by an AssetStore
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*
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* Note that there are no setter equivalents for each of getHash, getVariant and getFilename.
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* User code should utilise the setFrom* methods instead.
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*
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* @package framework
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* @subpackage filesystem
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*/
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interface AssetContainer {
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/**
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* Assign a set of data to the backend
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*
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* @param string $data Raw binary/text content
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* @param string $filename Name for the resulting file
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* @param string $hash Hash of original file, if storing a variant.
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* @param string $variant Name of variant, if storing a variant.
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* @param string $conflictResolution {@see AssetStore}. Will default to one chosen by the backend
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* @return array Tuple associative array (Filename, Hash, Variant) Unless storing a variant, the hash
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* will be calculated from the given data.
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*/
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public function setFromString($data, $filename, $hash = null, $variant = null, $conflictResolution = null);
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/**
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* Assign a local file to the backend.
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*
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* @param string $path Absolute filesystem path to file
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* @param type $filename Optional path to ask the backend to name as.
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* Will default to the filename of the $path, excluding directories.
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* @param string $hash Hash of original file, if storing a variant.
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* @param string $variant Name of variant, if storing a variant.
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* @param string $conflictResolution {@see AssetStore}
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* @return array Tuple associative array (Filename, Hash, Variant) Unless storing a variant, the hash
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* will be calculated from the local file content.
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*/
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public function setFromLocalFile($path, $filename = null, $hash = null, $variant = null, $conflictResolution = null);
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/**
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* Assign a stream to the backend
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*
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* @param resource $stream Streamable resource
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* @param string $filename Name for the resulting file
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* @param string $hash Hash of original file, if storing a variant.
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* @param string $variant Name of variant, if storing a variant.
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* @param string $conflictResolution {@see AssetStore}
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* @return array Tuple associative array (Filename, Hash, Variant) Unless storing a variant, the hash
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* will be calculated from the raw stream.
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*/
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public function setFromStream($stream, $filename, $hash = null, $variant = null, $conflictResolution = null);
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/**
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* @return string Data from the file in this container
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*/
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public function getString();
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/**
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* @return resource Data stream to the asset in this container
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*/
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public function getStream();
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/**
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* @return string public url to the asset in this container
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*/
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public function getURL();
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/**
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* @return string The absolute URL to the asset in this container
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*/
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public function getAbsoluteURL();
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/**
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* Get metadata for this file
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*
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* @return array|null File information
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*/
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public function getMetaData();
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/**
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* Get mime type
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*
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* @return string Mime type for this file
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*/
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public function getMimeType();
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/**
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* Return file size in bytes.
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*
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* @return int
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*/
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public function getAbsoluteSize();
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/**
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* Determine if a valid non-empty image exists behind this asset
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*
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* @return bool
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*/
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public function getIsImage();
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/**
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* Determine if this container has a valid value
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*
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* @return bool Flag as to whether the file exists
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*/
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public function exists();
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/**
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* Get value of filename
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*
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* @return string
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*/
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public function getFilename();
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/**
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* Get value of hash
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*
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* @return string
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*/
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public function getHash();
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/**
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* Get value of variant
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*
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* @return string
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*/
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public function getVariant();
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}
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