mirror of
https://github.com/silverstripe/silverstripe-textextraction
synced 2024-09-29 12:49:17 +02:00
f341010d7a
- Added namespaces, use statements - Added missing docblocks etc - Uses SS4's new Cache system - Uses proper environment vars - Cannot instantiate 'FileTextCache' (interface) as a service. This can be configured through YML, so default to FileTextCache_Cache - Modded YML config to make it run. - Fixes to allow TIKA to actually get file contents. - Addresses issues raised by @robbieaverill - Rebased against github.com/silverstripe/silverstripe-textextraction:master - Replaced `SS_Log` with Monolog.
136 lines
2.9 KiB
PHP
136 lines
2.9 KiB
PHP
<?php
|
|
|
|
namespace SilverStripe\TextExtraction\Extractor;
|
|
|
|
use SilverStripe\TextExtraction\Extractor\FileTextExtractor,
|
|
SilverStripe\Core\Injector\Injector,
|
|
SilverStripe\Core\Environment,
|
|
SilverStripe\TextExtraction\Rest\TikaRestClient;
|
|
|
|
/**
|
|
* Enables text extraction of file content via the Tika Rest Server
|
|
*
|
|
* {@link http://tika.apache.org/1.7/gettingstarted.html}
|
|
*/
|
|
class TikaServerTextExtractor extends FileTextExtractor
|
|
{
|
|
/**
|
|
* Tika server is pretty efficient so use it immediately if available
|
|
*
|
|
* @var integer
|
|
* @config
|
|
*/
|
|
private static $priority = 80;
|
|
|
|
/**
|
|
* Server endpoint
|
|
*
|
|
* @var string
|
|
* @config
|
|
*/
|
|
private static $server_endpoint;
|
|
|
|
/**
|
|
* @var TikaRestClient
|
|
*/
|
|
protected $client = null;
|
|
|
|
/**
|
|
* @return TikaRestClient
|
|
*/
|
|
public function getClient()
|
|
{
|
|
return $this->client ?:
|
|
($this->client =
|
|
Injector::inst()->createWithArgs(
|
|
TikaRestClient::class,
|
|
array($this->getServerEndpoint())
|
|
)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public function getServerEndpoint()
|
|
{
|
|
if ($endpoint = Environment::getEnv('SS_TIKA_ENDPOINT')) {
|
|
return $endpoint;
|
|
}
|
|
|
|
// Default to configured endpoint
|
|
return $this->config()->server_endpoint;
|
|
}
|
|
|
|
/**
|
|
* Get the version of tika installed, or 0 if not installed
|
|
*
|
|
* @return float version of tika
|
|
*/
|
|
public function getVersion()
|
|
{
|
|
return $this
|
|
->getClient()
|
|
->getVersion();
|
|
}
|
|
|
|
/**
|
|
* @return boolean
|
|
*/
|
|
public function isAvailable()
|
|
{
|
|
return $this->getServerEndpoint() &&
|
|
$this->getClient()->isAvailable() &&
|
|
version_compare($this->getVersion(), '1.7.0') >= 0;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param string $extension
|
|
* @return boolean
|
|
*/
|
|
public function supportsExtension($extension)
|
|
{
|
|
// Determine support via mime type only
|
|
return false;
|
|
}
|
|
|
|
|
|
/**
|
|
* Cache of supported mime types
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $supportedMimes = array();
|
|
|
|
/**
|
|
*
|
|
* @param string $mime
|
|
* @return boolean
|
|
*/
|
|
public function supportsMime($mime)
|
|
{
|
|
$supported = $this->supportedMimes ?:
|
|
($this->supportedMimes = $this->getClient()->getSupportedMimes());
|
|
|
|
// Check if supported (most common / quickest lookup)
|
|
if (isset($supported[$mime])) {
|
|
return true;
|
|
}
|
|
|
|
// Check aliases
|
|
foreach ($supported as $info) {
|
|
if (isset($info['alias']) && in_array($mime, $info['alias'])) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public function getContent($path)
|
|
{
|
|
return $this->getClient()->tika($path);
|
|
}
|
|
}
|