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Added permanent store feature

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lukas committed 2026-10-18 17:10:08 +00:00
1 parent 29e59c2b3c
commit 1f938cf19d
3 files changed
+200 -17
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CloudObjects/SDK/ObjectRetriever.php
+74 -17
View File
@@ -43,6 +43,7 @@ class ObjectRetriever implements CustomCacheAndLogInterface {
private $defaultReader;
private $customCacheDefaultRequest;
private $fallbackStoreScope;
private $permanentStoreScope;
const CO_API_URL = 'https://od.coid.link/';
@@ -60,7 +61,9 @@ class ObjectRetriever implements CustomCacheAndLogInterface {
'timeout' => 20,
'connect_timeout' => 5,
'fallback_store_directory' => null,
'fallback_store_scope' => null
'fallback_store_scope' => null,
'permanent_store_directory' => null,
'permanent_store_scope' => null
], $options);
// Check object cache configuration
@@ -95,6 +98,27 @@ class ObjectRetriever implements CustomCacheAndLogInterface {
: array_map('trim', explode(',', $this->options['fallback_store_scope']));
}
// Check permanent store configuration
if (isset($this->options['permanent_store_directory'])
&& isset($this->options['permanent_store_scope'])
&& !is_dir($this->options['permanent_store_directory'])
) {
throw new InvalidSDKConfigurationException('Invalid permanent_store_directory specified; must be an existing directory.');
}
if (isset($this->options['permanent_store_directory'])
&& isset($this->options['permanent_store_scope'])) {
$this->permanentStoreScope = is_array($this->options['permanent_store_scope'])
? $this->options['permanent_store_scope']
: array_map('trim', explode(',', $this->options['permanent_store_scope']));
}
if (isset($this->fallbackStoreScope) && isset($this->permanentStoreScope)
&& realpath($this->options['fallback_store_directory']) === realpath($this->options['permanent_store_directory'])
) {
throw new InvalidSDKConfigurationException('The permanent_store_directory and the fallback_store_directory must be different directories.');
}
// Set up logger
if (is_a($this->options['logger'], LoggerInterface::class)) {
$this->setLogger($this->options['logger']);
@@ -180,35 +204,32 @@ class ObjectRetriever implements CustomCacheAndLogInterface {
}
$this->putIntoFallbackStore($id, $data);
$this->putIntoPermanentStore($id, $data);
}
/**
* Get the file location of an object in the fallback store, or null if
* the fallback store is not configured or the object is out of scope.
* Get the file location of an object in a store, or null if the store
* is not configured or the object is out of scope.
*/
private function getFallbackStoreLocation($id) : ?string {
if (!isset($this->fallbackStoreScope))
private function getStoreLocation($directory, ?array $scope, $id) : ?string {
if (!isset($scope))
return null;
// Only objects are stored, not custom data or attachments
$coid = new IRI($id);
if (!COIDParser::isValidCOID($coid) || $coid->getFragment() !== null || $coid->getQuery() !== null)
if (!COIDParser::isValidCOID($coid))
return null;
if (!in_array('*', $this->fallbackStoreScope)
&& !in_array($coid->getHost(), $this->fallbackStoreScope))
if (!in_array('*', $scope)
&& !in_array($coid->getHost(), $scope))
return null;
return $this->options['fallback_store_directory'].DIRECTORY_SEPARATOR.
return $directory.DIRECTORY_SEPARATOR.
$coid->getHost().str_replace('/', DIRECTORY_SEPARATOR, $coid->getPath())
.DIRECTORY_SEPARATOR.'object.jsonld';
}
private function putIntoFallbackStore($id, $data) {
$location = $this->getFallbackStoreLocation($id);
if (!isset($location))
return;
private function putIntoStore($location, $id, $data, $storeName) {
// Write to a temporary file and rename it so that concurrent readers
// never see a partially written object
$directory = dirname($location);
@@ -218,12 +239,11 @@ class ObjectRetriever implements CustomCacheAndLogInterface {
|| !@rename($tempFile, $location)) {
@unlink($tempFile);
if (isset($this->logger))
$this->logger->warning('Could not write <'.$id.'> to fallback store.');
$this->logger->warning('Could not write <'.$id.'> to '.$storeName.' store.');
}
}
private function getFromFallbackStore($id) : ?string {
$location = $this->getFallbackStoreLocation($id);
private function getFromStore($location) : ?string {
if (!isset($location) || !is_file($location))
return null;
@@ -231,6 +251,37 @@ class ObjectRetriever implements CustomCacheAndLogInterface {
return ($data === false) ? null : $data;
}
private function getFallbackStoreLocation($id) : ?string {
return $this->getStoreLocation($this->options['fallback_store_directory'],
$this->fallbackStoreScope, $id);
}
private function putIntoFallbackStore($id, $data) {
$location = $this->getFallbackStoreLocation($id);
if (isset($location))
$this->putIntoStore($location, $id, $data, 'fallback');
}
private function getFromFallbackStore($id) : ?string {
return $this->getFromStore($this->getFallbackStoreLocation($id));
}
private function getPermanentStoreLocation($id) : ?string {
return $this->getStoreLocation($this->options['permanent_store_directory'],
$this->permanentStoreScope, $id);
}
private function putIntoPermanentStore($id, $data) {
// Objects in the permanent store are never overwritten
$location = $this->getPermanentStoreLocation($id);
if (isset($location) && !is_file($location))
$this->putIntoStore($location, $id, $data, 'permanent');
}
private function getFromPermanentStore($id) : ?string {
return $this->getFromStore($this->getPermanentStoreLocation($id));
}
public function getFromCacheCustom($id) {
return $this->getFromCache('custom/'.$id);
}
@@ -343,6 +394,12 @@ class ObjectRetriever implements CustomCacheAndLogInterface {
$this->logInfoWithTime('Fetched <'.$uriString.'> from object cache.', $ts);
}
if (!isset($object)) {
$object = $this->getFromPermanentStore($uriString);
if (isset($object))
$this->logInfoWithTime('Fetched <'.$uriString.'> from permanent store.', $ts);
}
if (!isset($object)) {
try {
$response = $this->client
tests/OfflineTests/ObjectRetrieverMockTest.php
+100
View File
@@ -266,4 +266,104 @@ class ObjectRetrieverMockTest extends \PHPUnit\Framework\TestCase {
}
}
private function createRetrieverWithPermanentObject(string $directory, array $options = []) {
$this->retriever = new ObjectRetriever(array_merge([
'permanent_store_directory' => $directory,
'permanent_store_scope' => '*',
], $options));
mkdir($directory.'/cloudobjects.io/Test', 0777, true);
file_put_contents($directory.'/cloudobjects.io/Test/object.jsonld',
'{"@id":"coid://cloudobjects.io/Test","http://www.w3.org/2000/01/rdf-schema#label":"Stored"}');
}
public function testPermanentStoreSavesObjectInScope() {
$directory = $this->createFallbackStoreDirectory();
$this->retriever = new ObjectRetriever([
'permanent_store_directory' => $directory,
'permanent_store_scope' => 'example.com, cloudobjects.io',
]);
$body = '{"@id":"coid://cloudobjects.io/Test","http://www.w3.org/2000/01/rdf-schema#label":"Test"}';
$this->setMockResponse(new Response(200, ['Content-Type' => 'application/ld+json'], $body));
try {
$this->retriever->getObjectNode(new IRI('coid://cloudobjects.io/Test'));
$location = $directory.'/cloudobjects.io/Test/object.jsonld';
$this->assertFileExists($location);
$this->assertEquals($body, file_get_contents($location));
} finally {
$this->removeDirectory($directory);
}
}
public function testPermanentStoreSkipsObjectOutOfScope() {
$directory = $this->createFallbackStoreDirectory();
$this->retriever = new ObjectRetriever([
'permanent_store_directory' => $directory,
'permanent_store_scope' => [ 'example.com' ],
]);
$this->setMockResponse(new Response(200, ['Content-Type' => 'application/ld+json'],
'{"@id":"coid://cloudobjects.io/Test"}'));
try {
$this->retriever->getObjectNode(new IRI('coid://cloudobjects.io/Test'));
$this->assertFileDoesNotExist($directory.'/cloudobjects.io/Test/object.jsonld');
} finally {
$this->removeDirectory($directory);
}
}
public function testPermanentStoreUsedWithoutContactingAPI() {
$directory = $this->createFallbackStoreDirectory();
$this->createRetrieverWithPermanentObject($directory);
$mock = new MockHandler([ new Response(500) ]);
$this->retriever->setClient(new Client(['handler' => HandlerStack::create($mock)]));
try {
$object = $this->retriever->getObjectNode(new IRI('coid://cloudobjects.io/Test'));
$this->assertNotNull($object);
$this->assertEquals('Stored', $object->getProperty('http://www.w3.org/2000/01/rdf-schema#label')->getValue());
// The mocked response has not been consumed
$this->assertCount(1, $mock);
} finally {
$this->removeDirectory($directory);
}
}
public function testPermanentStoreNotOverwritten() {
$directory = $this->createFallbackStoreDirectory();
$this->createRetrieverWithPermanentObject($directory);
$this->setMockResponse(new Response(200, ['Content-Type' => 'application/ld+json'],
'[{"@id":"coid://cloudobjects.io/Test","http://www.w3.org/2000/01/rdf-schema#label":"Updated"}]'));
try {
$this->retriever->fetchAllObjectsInNamespace(new IRI('coid://cloudobjects.io'));
$this->assertStringContainsString('Stored',
file_get_contents($directory.'/cloudobjects.io/Test/object.jsonld'));
} finally {
$this->removeDirectory($directory);
}
}
public function testPermanentStoreTakesPrecedenceOverFallbackStore() {
$permanentDirectory = $this->createFallbackStoreDirectory();
$fallbackDirectory = $this->createFallbackStoreDirectory();
$this->createRetrieverWithPermanentObject($permanentDirectory, [
'fallback_store_directory' => $fallbackDirectory,
'fallback_store_scope' => '*',
]);
mkdir($fallbackDirectory.'/cloudobjects.io/Test', 0777, true);
file_put_contents($fallbackDirectory.'/cloudobjects.io/Test/object.jsonld',
'{"@id":"coid://cloudobjects.io/Test","http://www.w3.org/2000/01/rdf-schema#label":"Fallback"}');
$this->setMockResponse(new Response(500));
try {
$object = $this->retriever->getObjectNode(new IRI('coid://cloudobjects.io/Test'));
$this->assertEquals('Stored', $object->getProperty('http://www.w3.org/2000/01/rdf-schema#label')->getValue());
} finally {
$this->removeDirectory($permanentDirectory);
$this->removeDirectory($fallbackDirectory);
}
}
}
tests/OfflineTests/ObjectRetrieverTest.php
+26
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@@ -26,4 +26,30 @@ class ObjectRetrieverTest extends \PHPUnit\Framework\TestCase {
]);
}
public function testPermanentStoreWithExistingDirectory() {
$retriever = new ObjectRetriever([
'permanent_store_directory' => sys_get_temp_dir(),
'permanent_store_scope' => '*',
]);
$this->assertInstanceOf(ObjectRetriever::class, $retriever);
}
public function testPermanentStoreWithMissingDirectory() {
$this->expectException(InvalidSDKConfigurationException::class);
new ObjectRetriever([
'permanent_store_directory' => sys_get_temp_dir().'/does-not-exist-'.uniqid(),
'permanent_store_scope' => '*',
]);
}
public function testPermanentStoreWithSameDirectoryAsFallbackStore() {
$this->expectException(InvalidSDKConfigurationException::class);
new ObjectRetriever([
'fallback_store_directory' => sys_get_temp_dir(),
'fallback_store_scope' => '*',
'permanent_store_directory' => sys_get_temp_dir(),
'permanent_store_scope' => '*',
]);
}
}