The Open Archives Initiative: Realizing Simple and Effective Digital Library Interoperability.

Fuente: ERIC Institute of Education Sciences

Saved in:

Bibliographic Details
Main Authors:	Suleman, Hussein, Fox, Edward
Format:	Recurso educativo Open Access
Language:	en
Published:	2001
Subjects:	Electronic Libraries Library Policy Metadata Semantics World Wide Web
Online Access:	Acceder al recurso
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author	Suleman, Hussein Fox, Edward
author_facet	Suleman, Hussein Fox, Edward Suleman, Hussein Fox, Edward
collection	Education Resources Information Center
contents	The Open Archives Initiative: Realizing Simple and Effective Digital Library Interoperability. Suleman, Hussein Fox, Edward Electronic Libraries Library Policy Metadata Semantics World Wide Web Explains the Open Archives Initiative (OAI) which was developed to solve problems of digital library interoperability on the World Wide Web. Topics include metadata; HTTP; XML; Dublin Core; the OAI Metadata Harvesting Protocol; data providers; service providers; reference linking; library policies; shared semantics; and name authority systems. (LRW)
format	Recurso educativo Open Access
id	eric_EJ659600
institution	ERIC Institute of Education Sciences
language	en
publishDate	2001
record_format	eric
spellingShingle	The Open Archives Initiative: Realizing Simple and Effective Digital Library Interoperability. Suleman, Hussein Fox, Edward Electronic Libraries Library Policy Metadata Semantics World Wide Web The Open Archives Initiative: Realizing Simple and Effective Digital Library Interoperability. Suleman, Hussein Fox, Edward Electronic Libraries Library Policy Metadata Semantics World Wide Web Explains the Open Archives Initiative (OAI) which was developed to solve problems of digital library interoperability on the World Wide Web. Topics include metadata; HTTP; XML; Dublin Core; the OAI Metadata Harvesting Protocol; data providers; service providers; reference linking; library policies; shared semantics; and name authority systems. (LRW)
title	The Open Archives Initiative: Realizing Simple and Effective Digital Library Interoperability.
topic	Electronic Libraries Library Policy Metadata Semantics World Wide Web
url	https://eric.ed.gov/?id=EJ659600

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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language	"en"
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Environment & details:

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VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
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REQUEST_TIME	1789135493

Environment Variables empty

Registered Handlers

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