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NuanceImportCursor.php
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Created
Sun, Oct 20, 13:00

NuanceImportCursor.php
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<?php
abstract class NuanceImportCursor extends Phobject {
private $cursorData;
private $cursorKey;
private $source;
abstract protected function shouldPullDataFromSource();
abstract protected function pullDataFromSource();
final public function getCursorType() {
return $this->getPhobjectClassConstant('CURSORTYPE', 32);
}
public function setCursorData(NuanceImportCursorData $cursor_data) {
$this->cursorData = $cursor_data;
return $this;
}
public function getCursorData() {
return $this->cursorData;
}
public function setSource($source) {
$this->source = $source;
return $this;
}
public function getSource() {
return $this->source;
}
public function setCursorKey($cursor_key) {
$this->cursorKey = $cursor_key;
return $this;
}
public function getCursorKey() {
return $this->cursorKey;
}
final public function importFromSource() {
if (!$this->shouldPullDataFromSource()) {
return false;
}
$source = $this->getSource();
$key = $this->getCursorKey();
$parts = array(
'nsc',
$source->getID(),
PhabricatorHash::digestToLength($key, 20),
);
$lock_name = implode('.', $parts);
$lock = PhabricatorGlobalLock::newLock($lock_name);
$lock->lock(1);
try {
$more_data = $this->pullDataFromSource();
} catch (Exception $ex) {
$lock->unlock();
throw $ex;
}
$lock->unlock();
return $more_data;
}
final public function newEmptyCursorData(NuanceSource $source) {
return id(new NuanceImportCursorData())
->setCursorKey($this->getCursorKey())
->setCursorType($this->getCursorType())
->setSourcePHID($source->getPHID());
}
final protected function logInfo($message) {
echo tsprintf(
"<cursor:%s> %s\n",
$this->getCursorKey(),
$message);
return $this;
}
final protected function getCursorProperty($key, $default = null) {
return $this->getCursorData()->getCursorProperty($key, $default);
}
final protected function setCursorProperty($key, $value) {
$this->getCursorData()->setCursorProperty($key, $value);
return $this;
}
}

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