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phorge/src/applications/diviner/publisher/DivinerPublisher.php
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DivinerPublisher.php
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<?php
abstract class DivinerPublisher extends Phobject {
private $atomCache;
private $atomGraphHashToNodeHashMap;
private $atomMap = array();
private $renderer;
private $config;
private $symbolReverseMap;
private $dropCaches;
final public function setDropCaches($drop_caches) {
$this->dropCaches = $drop_caches;
return $this;
}
final public function setRenderer(DivinerRenderer $renderer) {
$renderer->setPublisher($this);
$this->renderer = $renderer;
return $this;
}
final public function getRenderer() {
return $this->renderer;
}
final public function setConfig(array $config) {
$this->config = $config;
return $this;
}
final public function getConfig($key, $default = null) {
return idx($this->config, $key, $default);
}
final public function getConfigurationData() {
return $this->config;
}
final public function setAtomCache(DivinerAtomCache $cache) {
$this->atomCache = $cache;
$graph_map = $this->atomCache->getGraphMap();
$this->atomGraphHashToNodeHashMap = array_flip($graph_map);
return $this;
}
final protected function getAtomFromGraphHash($graph_hash) {
if (empty($this->atomGraphHashToNodeHashMap[$graph_hash])) {
throw new Exception(pht("No such atom '%s'!", $graph_hash));
}
return $this->getAtomFromNodeHash(
$this->atomGraphHashToNodeHashMap[$graph_hash]);
}
final protected function getAtomFromNodeHash($node_hash) {
if (empty($this->atomMap[$node_hash])) {
$dict = $this->atomCache->getAtom($node_hash);
$this->atomMap[$node_hash] = DivinerAtom::newFromDictionary($dict);
}
return $this->atomMap[$node_hash];
}
final protected function getSimilarAtoms(DivinerAtom $atom) {
if ($this->symbolReverseMap === null) {
$rmap = array();
$smap = $this->atomCache->getSymbolMap();
foreach ($smap as $nhash => $shash) {
$rmap[$shash][$nhash] = true;
}
$this->symbolReverseMap = $rmap;
}
$shash = $atom->getRef()->toHash();
if (empty($this->symbolReverseMap[$shash])) {
throw new Exception(pht('Atom has no symbol map entry!'));
}
$hashes = $this->symbolReverseMap[$shash];
$atoms = array();
foreach ($hashes as $hash => $ignored) {
$atoms[] = $this->getAtomFromNodeHash($hash);
}
$atoms = msort($atoms, 'getSortKey');
return $atoms;
}
/**
* If a book contains multiple definitions of some atom, like some function
* `f()`, we assign them an arbitrary (but fairly stable) order and publish
* them as `function/f/1/`, `function/f/2/`, etc., or similar.
*/
final protected function getAtomSimilarIndex(DivinerAtom $atom) {
$atoms = $this->getSimilarAtoms($atom);
if (count($atoms) == 1) {
return 0;
}
$index = 1;
foreach ($atoms as $similar_atom) {
if ($atom === $similar_atom) {
return $index;
}
$index++;
}
throw new Exception(pht('Expected to find atom while disambiguating!'));
}
abstract protected function loadAllPublishedHashes();
abstract protected function deleteDocumentsByHash(array $hashes);
abstract protected function createDocumentsByHash(array $hashes);
abstract public function findAtomByRef(DivinerAtomRef $ref);
final public function publishAtoms(array $hashes) {
$existing = $this->loadAllPublishedHashes();
if ($this->dropCaches) {
$deleted = $existing;
$created = $hashes;
} else {
$existing_map = array_fill_keys($existing, true);
$hashes_map = array_fill_keys($hashes, true);
$deleted = array_diff_key($existing_map, $hashes_map);
$created = array_diff_key($hashes_map, $existing_map);
$deleted = array_keys($deleted);
$created = array_keys($created);
}
echo pht('Deleting %d documents.', count($deleted))."\n";
$this->deleteDocumentsByHash($deleted);
echo pht('Creating %d documents.', count($created))."\n";
$this->createDocumentsByHash($created);
}
final protected function shouldGenerateDocumentForAtom(DivinerAtom $atom) {
switch ($atom->getType()) {
case DivinerAtom::TYPE_METHOD:
case DivinerAtom::TYPE_FILE:
return false;
case DivinerAtom::TYPE_ARTICLE:
default:
break;
}
return true;
}
}

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