/
api_journal.php
592 lines (452 loc) · 10.8 KB
/
api_journal.php
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<?php
error_reporting(E_ALL);
// journal
require_once (dirname(__FILE__) . '/couchsimple.php');
require_once (dirname(__FILE__) . '/lib.php');
require_once (dirname(__FILE__) . '/api_utils.php');
//--------------------------------------------------------------------------------------------------
function default_display()
{
echo "hi";
}
//--------------------------------------------------------------------------------------------------
// One journal (ISSN)
function display_issn ($issn, $callback = '')
{
global $config;
global $couch;
$couch_id = 'issn/' . $issn;
$resp = $couch->send("GET", "/" . $config['couchdb_options']['database'] . "/" . urlencode($couch_id));
$response_obj = json_decode($resp);
$obj = new stdclass;
$obj->status = 404;
if (isset($response_obj->error))
{
$obj->error = $response_obj->error;
}
else
{
$obj = json_decode($resp);
$obj->status = 200;
}
api_output($obj, $callback);
}
//--------------------------------------------------------------------------------------------------
// One journal (OCLC)
function display_oclc ($oclc, $callback = '')
{
global $config;
global $couch;
$couch_id = 'oclc/' . $oclc;
$resp = $couch->send("GET", "/" . $config['couchdb_options']['database'] . "/" . urlencode($couch_id));
$response_obj = json_decode($resp);
$obj = new stdclass;
$obj->status = 404;
if (isset($response_obj->error))
{
$obj->error = $response_obj->error;
}
else
{
$obj = json_decode($resp);
$obj->status = 200;
}
api_output($obj, $callback);
}
//--------------------------------------------------------------------------------------------------
// Journal articles clustered by decade, then year. Return counts for each year.
function display_decade_volumes ($namespace, $value, $callback = '')
{
global $config;
global $couch;
switch ($namespace)
{
case 'oclc':
$startkey = array((Integer)$value);
$endkey = array((Integer)$value, new stdclass);
break;
case 'issn':
default:
$startkey = array($value);
$endkey = array($value, new stdclass);
break;
}
$url = '_design/journal_articles/_view/decade_year_count?startkey=' . json_encode($startkey) . '&endkey=' . json_encode($endkey) . '&group_level=4';
if ($config['stale'])
{
$url .= '&stale=ok';
}
$resp = $couch->send("GET", "/" . $config['couchdb_options']['database'] . "/" . $url);
$response_obj = json_decode($resp);
$obj = new stdclass;
$obj->status = 404;
$obj->url = $url;
if (isset($response_obj->error))
{
$obj->error = $response_obj->error;
}
else
{
if (count($response_obj->rows) == 0)
{
$obj->error = 'Not found';
}
else
{
$obj->status = 200;
// group into decades
$obj->decades = array();
foreach ($response_obj->rows as $row)
{
if (!isset($obj->decades[$row->key[1]]))
{
$obj->decades[$row->key[1]] = array();
}
if (!isset($obj->decades[$row->key[1]][$row->key[2]]))
{
$obj->decades[$row->key[1]][$row->key[2]] = array();
}
$obj->decades[$row->key[1]][$row->key[2]] = $row->value;
}
}
}
api_output($obj, $callback);
}
//----------------------------------------------------------------------------------------
function cmp($a, $b)
{
$result = 0;
$volume_a = 0;
$volume_b = 0;
if (isset($a->journal->volume))
{
$volume_a = $a->journal->volume;
}
if (isset($b->journal->volume))
{
$volume_b = $b->journal->volume;
}
if ($volume_a == $volume_b)
{
$result = 0;
}
else
{
$result = ($volume_a < $volume_b) ? -1 : 1;
}
if ($result == 0)
{
// spage
$spage_a = 0;
$spage_b = 0;
if (isset($a->journal->pages))
{
if (preg_match('/^(?<spage>.*)--(?<epage>.*)/', $a->journal->pages, $m))
{
$spage_a = $m['spage'];
}
else
{
$spage_a = $a->journal->pages;
}
}
if (isset($b->journal->pages))
{
if (preg_match('/^(?<spage>.*)--(?<epage>.*)/', $b->journal->pages, $m))
{
$spage_b = $m['spage'];
}
else
{
$spage_b = $b->journal->pages;
}
}
if ($spage_a == $spage_b)
{
$result = 0;
}
else
{
$result = ($spage_a < $spage_b) ? -1 : 1;
}
}
return $result;
}
//--------------------------------------------------------------------------------------------------
// Journal articles for a given journal and year
function display_articles_year ($namespace, $value, $year, $callback = '')
{
global $config;
global $couch;
switch ($namespace)
{
case 'oclc':
$startkey = array((Integer)$value, (Integer)$year);
$endkey = array((Integer)$value, (Integer)($year + 1));
$url = '_design/journal_articles/_view/oclc_year_page?startkey=' . json_encode($startkey) . '&endkey=' . json_encode($endkey) . '&include_docs=true';
break;
case 'issn':
default:
$startkey = array($value, (Integer)$year);
$endkey = array($value, (Integer)($year + 1));
$url = '_design/journal_articles/_view/issn_year_page?startkey=' . json_encode($startkey) . '&endkey=' . json_encode($endkey) . '&include_docs=true';
break;
}
if ($config['stale'])
{
$url .= '&stale=ok';
}
$resp = $couch->send("GET", "/" . $config['couchdb_options']['database'] . "/" . $url);
$response_obj = json_decode($resp);
$obj = new stdclass;
$obj->status = 404;
$obj->url = $url;
if (isset($response_obj->error))
{
$obj->error = $response_obj->error;
}
else
{
if (count($response_obj->rows) == 0)
{
$obj->error = 'Not found';
}
else
{
$obj->status = 200;
$obj->articles = array();
foreach ($response_obj->rows as $row)
{
$obj->articles[] = $row->doc;
}
// sort
usort($obj->articles, "cmp");
}
}
api_output($obj, $callback);
}
//--------------------------------------------------------------------------------------------------
function display_starting_with($letter='A', $callback)
{
global $config;
global $couch;
$startkey = array($letter);
if ($letter == 'Z')
{
$endkey = array(new stdclass);
}
else
{
$endkey = array(chr(ord($letter) + 1));
}
$url = '_design/journal_articles/_view/name_sort?startkey=' . json_encode($startkey) . '&endkey=' . json_encode($endkey) . '&group_level=3';
$url .= '&limit=100';
if ($config['stale'])
{
$url .= '&stale=ok';
}
//echo $url;
$resp = $couch->send("GET", "/" . $config['couchdb_options']['database'] . "/" . $url);
$response_obj = json_decode($resp);
$obj = new stdclass;
$obj->status = 404;
$obj->url = $url;
if (isset($response_obj->error))
{
$obj->error = $response_obj->error;
}
else
{
$obj->status = 200;
$obj->titles = array();
// group by identifier
$sort_order = array();
$key_to_identifier = array();
$identifier_to_key = array();
$identifier_to_names = array();
foreach ($response_obj->rows as $row)
{
$key = $row->key[0];
$identifier = $row->key[1];
$name = $row->key[2];
if (!isset($identifier_to_key[$identifier]))
{
$identifier_to_key[$identifier] = $key;
$key_to_identifier[$key] = $identifier;
$sort_order[] = $identifier;
$identifier_to_names[$identifier] = array();
}
$identifier_to_names[$identifier][] = $name;
}
/*
echo '<pre>';
print_r($sort_order);
print_r($identifier_to_names);
echo '</pre>';
*/
foreach ($sort_order as $id)
{
$title = new stdclass;
if (is_numeric($id))
{
$title->oclc = $id;
}
else
{
$title->issn = $id;
}
// for now just take first name
$title->title = $identifier_to_names[$id][0];
$obj->titles[$id] = $title;
}
}
api_output($obj, $callback);
}
//--------------------------------------------------------------------------------------------------
// ROMEO status
function display_romeo($issn, $callback = '')
{
global $config;
$url = 'http://www.sherpa.ac.uk/romeo/api29.php?issn=' . $issn;
$obj = new stdclass;
$obj->status = 404;
$obj->url = $url;
$obj->issn = $issn;
$xml = get($url);
if ($xml != '')
{
$obj->status = 200;
$dom= new DOMDocument;
$dom->loadXML($xml);
$xpath = new DOMXPath($dom);
$xpath_query = '//romeocolour';
$nodeCollection = $xpath->query ($xpath_query);
foreach($nodeCollection as $node)
{
$obj->romeocolour = $node->firstChild->nodeValue;
}
$xpath_query = '//publisher/preprints/prearchiving';
$nodeCollection = $xpath->query ($xpath_query);
foreach($nodeCollection as $node)
{
$obj->prearchiving = $node->firstChild->nodeValue;
}
$xpath_query = '//publisher/postprints/postarchiving';
$nodeCollection = $xpath->query ($xpath_query);
foreach($nodeCollection as $node)
{
$obj->postarchiving = $node->firstChild->nodeValue;
}
$xpath_query = '//publisher/pdfversion/pdfarchiving';
$nodeCollection = $xpath->query ($xpath_query);
foreach($nodeCollection as $node)
{
$obj->pdfarchiving = $node->firstChild->nodeValue;
}
$xpath_query = '//publisher[1]/paidaccess/paidaccessnotes';
$nodeCollection = $xpath->query ($xpath_query);
foreach($nodeCollection as $node)
{
$obj->paidaccessnotes = $node->firstChild->nodeValue;
}
}
api_output($obj, $callback);
}
//--------------------------------------------------------------------------------------------------
function main()
{
$callback = '';
$handled = false;
// If no query parameters
if (count($_GET) == 0)
{
default_display();
exit(0);
}
if (isset($_GET['callback']))
{
$callback = $_GET['callback'];
}
// Optional fields to include
$fields = array('all');
if (isset($_GET['fields']))
{
$field_string = $_GET['fields'];
$fields = explode(",", $field_string);
}
if (!$handled)
{
if (isset($_GET['letter']))
{
display_starting_with(strtoupper($_GET['letter']), $callback);
$handled = true;
}
}
if (!$handled)
{
// OCLC
if (isset($_GET['oclc']))
{
$oclc = $_GET['oclc'];
if (!$handled)
{
if (isset($_GET['volumes']))
{
display_decade_volumes('oclc', $oclc, $callback);
$handled = true;
}
}
if (!$handled)
{
if (isset($_GET['year']))
{
$year = $_GET['year'];
display_articles_year('oclc', $oclc, $year, $callback);
$handled = true;
}
}
if (!$handled)
{
display_oclc($oclc, $callback);
$handled = true;
}
}
// ISSN
if (isset($_GET['issn']))
{
$issn = $_GET['issn'];
if (!$handled)
{
if (isset($_GET['volumes']))
{
display_decade_volumes('issn', $issn, $callback);
$handled = true;
}
}
if (!$handled)
{
if (isset($_GET['year']))
{
$year = $_GET['year'];
display_articles_year('issn', $issn, $year, $callback);
$handled = true;
}
}
if (!$handled)
{
if (isset($_GET['romeo']) )
{
display_romeo($issn, $callback);
$handled = true;
}
}
if (!$handled)
{
display_issn($issn, $callback);
$handled = true;
}
}
}
}
main();
?>