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Merge pull request #9 from chillu/pulls/tika-logging

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Improved Tika error logging
This commit is contained in:
Damian Mooyman 2015-05-12 15:27:08 +12:00
commit 6cf09f26c8
2 changed files with 37 additions and 9 deletions
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12
README.md
View File

@ -146,9 +146,9 @@ each HTTP request is run synchronously.
### Tika
Support for Apache Tika (1.7 and above) is included. This can be run in one of two ways: Server or CLI.
Support for Apache Tika (1.8 and above) is included. This can be run in one of two ways: Server or CLI.
See [the Apache Tika home page](http://tika.apache.org/1.7/index.html) for instructions on installing and
See [the Apache Tika home page](http://tika.apache.org/1.8/index.html) for instructions on installing and
configuring this. Download the latest `tika-app` for running as a CLI script, or `tika-server` if you're planning
to have it running constantly in the background. Starting tika as a CLI script for every extraction request
is fairly slow, so we recommend running it as a server.
@ -186,6 +186,14 @@ java -jar tika-server-1.8.jar --host=localhost --port=9998
While you can run `tika-app-1.8.jar` in server mode as well (with the `--server` flag),
it behaves differently and is not recommended.
The module will log extraction errors with `SS_Log::NOTICE` priority by default,
for example a "422 Unprocessable Entity" HTTP response for an encrypted PDF.
In case you want more information on why processing failed, you can increase
the logging verbosity in the tika server instance by passing through
a `--includeStack` flag. Logs can passed on to files or external logging services,
see [error handling](http://doc.silverstripe.org/en/developer_guides/debugging/error_handling)
documentation for SilverStripe core.
## Usage
Manual extraction:

34
code/tika/TikaRestClient.php
View File

@ -56,19 +56,39 @@ class TikaRestClient extends Client {
}
/**
* Extract text content from a given file
* Extract text content from a given file.
* Logs a notice-level error if the document can't be parsed.
*
* @param string $file Full filesystem path to a file to post
* @return string Content of the file extracted as plain text
*/
public function tika($file) {
$response = $this->put(
'tika',
array('Accept' => 'text/plain'),
file_get_contents($file)
)->send();
$text = null;
try {
$response = $this->put(
'tika',
array('Accept' => 'text/plain'),
file_get_contents($file)
)->send();
$text = $response->getBody(true);
} catch(RequestException $e) {
$msg = sprintf(
'TikaRestClient was not able to process %s. Response: %s %s.',
$file,
$e->getResponse()->getStatusCode(),
$e->getResponse()->getReasonPhrase()
);
return $response->getBody(true);
// Only available if tika-server was started with --includeStack
$body = $e->getResponse()->getBody(true);
if($body) {
$msg .= ' Body: ' . $body;
}
SS_Log::log($msg, SS_Log::NOTICE);
}
return $text;
}
}