/**
* Format XML for single DC element.
* @param $propertyName string
* @param $value array
* @param $multilingual boolean optional
*/
function formatElement($propertyName, $values, $multilingual = false)
{
if (!is_array($values)) {
$values = array($values);
}
// Translate the property name to XML syntax.
$openingElement = str_replace(array('[@', ']'), array(' ', ''), $propertyName);
$closingElement = String::regexp_replace('/\\[@.*/', '', $propertyName);
// Create the actual XML entry.
$response = '';
foreach ($values as $key => $value) {
if ($multilingual) {
$key = str_replace('_', '-', $key);
assert(is_array($value));
foreach ($value as $subValue) {
if ($key == METADATA_DESCRIPTION_UNKNOWN_LOCALE) {
$response .= "\t<{$openingElement}>" . OAIUtils::prepOutput($subValue) . "</{$closingElement}>\n";
} else {
$response .= "\t<{$openingElement} xml:lang=\"{$key}\">" . OAIUtils::prepOutput($subValue) . "</{$closingElement}>\n";
}
}
} else {
assert(is_scalar($value));
$response .= "\t<{$openingElement}>" . OAIUtils::prepOutput($value) . "</{$closingElement}>\n";
}
}
return $response;
}
/**
* Format XML for single RFC 1807 element.
* @param $name string
* @param $value mixed
*/
function formatElement($name, $value)
{
if (!is_array($value)) {
$value = array($value);
}
$response = '';
foreach ($value as $v) {
$response .= "\t<{$name}>" . OAIUtils::prepOutput($v) . "</{$name}>\n";
}
return $response;
}
/**
* Format XML for single MARC21 element.
* @param $tag string
* @param $ind1 string
* @param $ind2 string
* @param $code string
* @param $value mixed
*/
function formatElement($tag, $ind1, $ind2, $code, $value)
{
if (!is_array($value)) {
$value = array($value);
}
$response = '';
foreach ($value as $v) {
$response .= "\t<datafield tag=\"{$tag}\" ind1=\"{$ind1}\" ind2=\"{$ind2}\">\n" . "\t\t<subfield code=\"{$code}\">" . OAIUtils::prepOutput($v) . "</subfield>\n" . "\t</datafield>\n";
}
return $response;
}
/**
* Format XML for single MARC element.
* @param $id string
* @param $i1 string
* @param $i2 string
* @param $label string
* @param $value mixed
*/
function formatElement($id, $i1, $i2, $label, $value)
{
if (!is_array($value)) {
$value = array($value);
}
$response = '';
foreach ($value as $v) {
$response .= "\t<varfield id=\"{$id}\" i1=\"{$i1}\" i2=\"{$i2}\">\n" . "\t\t<subfield label=\"{$label}\">" . OAIUtils::prepOutput($v) . "</subfield>\n" . "\t</varfield>\n";
}
return $response;
}
/**
* Clean input variables.
* @param $data mixed request parameter(s)
* @return mixed cleaned request parameter(s)
*/
function prepInput(&$data)
{
if (!is_array($data)) {
$data = urldecode($data);
} else {
foreach ($data as $k => $v) {
if (is_array($data[$k])) {
OAIUtils::prepInput($data[$k]);
} else {
$data[$k] = urldecode($v);
}
}
}
return $data;
}
/**
* Return OAIIdentifier object from database row.
* @param $row array
* @return OAIIdentifier
*/
function &_returnIdentifierFromRow(&$row)
{
$oaiRecord = new OAIRecord();
$oaiRecord->identifier = $this->oai->recordIdToIdentifier($row['record_id']);
$oaiRecord->datestamp = OAIUtils::UTCDate(strtotime($this->datetimeFromDB($row['datestamp'])));
$oaiRecord->sets = array($row['archive_id']);
return $oaiRecord;
}
/**
* Return OAIIdentifier object from database row.
* @param $row array
* @return OAIIdentifier
*/
function &_returnIdentifierFromRow(&$row)
{
$record = new OAIRecord();
$conference =& $this->getConference($row['conference_id']);
$schedConf =& $this->getSchedConf($row['sched_conf_id']);
$track =& $this->getTrack($row['track_id']);
$record->identifier = $this->oai->paperIdToIdentifier($row['paper_id']);
$record->datestamp = OAIUtils::UTCDate(strtotime($this->datetimeFromDB($row['last_modified'])));
$record->sets = array($conference->getPath() . ':' . $track->getLocalizedAbbrev());
return $record;
}
/**
* Return OAIIdentifier object from database row.
* @param $row array
* @return OAIIdentifier
*/
function &_returnIdentifierFromRow(&$row)
{
$journal =& $this->getJournal($row['journal_id']);
$section =& $this->getSection($row['section_id']);
$record = new OAIRecord();
$record->identifier = $this->oai->articleIdToIdentifier($row['article_id']);
$record->datestamp = OAIUtils::UTCDate(strtotime($this->datetimeFromDB($row['last_modified'])));
$record->sets = array($journal->getPath() . ':' . $section->getLocalizedAbbrev());
return $record;
}
/**
* Common operations for OAIRecord and OAIIdentifier object data set.
* @param $record OAIRecord/OAIIdentifier
* @param $row array
* @return OAIRecord/OAIIdentifier
*/
function _doCommonOAIFromRowOperations($record, $row)
{
$record->datestamp = OAIUtils::UTCDate(strtotime($this->datetimeFromDB($row['last_modified'])));
if (isset($row['tombstone_id'])) {
$record->identifier = $row['oai_identifier'];
$record->sets = array($row['set_spec']);
$record->status = OAIRECORD_STATUS_DELETED;
} else {
$record->status = OAIRECORD_STATUS_ALIVE;
$record = $this->setOAIData($record, $row, is_a($record, 'OAIRecord'));
}
return $record;
}
/**
* Checks if from and until parameters have been passed.
* If passed, validate and convert to UNIX timestamps.
* @param $params array request parameters
* @param $from int from timestamp (output parameter)
* @param $until int until timestamp (output parameter)
* @return boolean
*/
function extractDateParams($params, &$from, &$until)
{
if (isset($params['from'])) {
$from = OAIUtils::UTCtoTimestamp($params['from']);
if ($from == 'invalid') {
$this->error('badArgument', 'Illegal from parameter');
return false;
} else {
if ($from == 'invalid_granularity') {
$this->error('badArgument', 'Illegal granularity for from parameter');
return false;
}
}
}
if (isset($params['until'])) {
$until = OAIUtils::UTCtoTimestamp($params['until']);
if ($until == 'invalid') {
$this->error('badArgument', 'Illegal until parameter');
return false;
} else {
if ($until == 'invalid_granularity') {
$this->error('badArgument', 'Illegal granularity for until parameter');
return false;
}
}
// Check that until value is greater than or equal to from value
if (isset($from) && $from > $until) {
$this->error('badArgument', 'until parameter must be greater than or equal to from parameter');
return false;
}
// Check that granularities are equal
if (isset($from) && strlen($params['from']) != strlen($params['until'])) {
$this->error('badArgument', 'until and from parameters must be of the same granularity');
return false;
}
if (strlen($params['until']) == 10) {
// Until date is inclusive
$until += 86399;
}
}
return true;
}
/**
* Format XML for single DC element.
* @param $name string
* @param $value mixed
* @param $multilingual boolean optional
*/
function formatElement($name, $value, $multilingual = false, $attribs = array())
{
if (!is_array($value)) {
$value = array($value);
}
$attribText = '';
foreach ($attribs as $n => $v) {
$attribText .= " {$n}=\"" . htmlspecialchars($v) . "\"";
}
$response = '';
foreach ($value as $key => $v) {
$key = str_replace('_', '-', $key);
if (!$multilingual) {
$response .= "\t<dc:{$name}{$attribText}>" . OAIUtils::prepOutput($v) . "</dc:{$name}>\n";
} else {
if (is_array($v)) {
foreach ($v as $subV) {
$response .= "\t<dc:{$name} xml:lang=\"{$key}\">" . OAIUtils::prepOutput($subV) . "</dc:{$name}>\n";
}
} else {
$response .= "\t<dc:{$name} xml:lang=\"{$key}\">" . OAIUtils::prepOutput($v) . "</dc:{$name}>\n";
}
}
}
return $response;
}
/**
* Format XML for single DC element.
* @param $name string
* @param $value mixed
* @param $multilingual boolean optional
*/
function formatElement($name, $value, $multilingual = false)
{
if (!is_array($value)) {
$value = array($value);
}
$response = '';
foreach ($value as $key => $v) {
$key = str_replace('_', '-', $key);
if (!$multilingual) {
$response .= "\t<dc:{$name}>" . OAIUtils::prepOutput($v) . "</dc:{$name}>\n";
} else {
if (is_array($v)) {
foreach ($v as $subV) {
$response .= "\t<dc:{$name} xml:lang=\"{$key}\">" . OAIUtils::prepOutput($subV) . "</dc:{$name}>\n";
}
} else {
$response .= "\t<dc:{$name} xml:lang=\"{$key}\">" . OAIUtils::prepOutput($v) . "</dc:{$name}>\n";
}
}
}
return $response;
}
