/**
* Gets mixed array of MeshingOwnNode and *KnownNode objects to send to
*/
protected function getLocalAndRemoteReceiverNodes(P2POwnNode $node)
{
// Rewrite the above from the perspective of the local 'to' node
$localNodes = P2POwnNodeQuery::create()->joinMeshingTrustLocalRelatedByToOwnNodeId('TrustLocal')->useQuery('TrustLocal')->joinMeshingTrustType()->endUse()->where('TrustLocal.FromOwnNodeId = ?', $node->getId())->where('MeshingTrustType.Name LIKE ?', 'write%')->find();
// Get array of node ids in remote database (we can't join between system and node dbs)
$remoteNodeIds = MeshingTrustRemoteQuery::create()->joinMeshingTrustType()->where('MeshingTrustRemote.FromOwnNodeId = ?', $node->getId())->where('MeshingTrustType.Name LIKE ?', 'write%')->select('MeshingTrustRemote.KnownNodeId')->find()->getArrayCopy();
// Initialise remote node models
$schemaName = $node->getMeshingSchema()->getName();
Meshing_Utils::initialiseNodeDbs($schemaName);
$con = Meshing_Node_Utils::getConnectionForNode($node);
// Do select in node database for remote node ids
$className = Meshing_Node_Utils::getNodeClassName($schemaName, 'KnownNodeQuery');
/* @var $query JobsKnownNodeQuery */
// (This is just an example - can be of any *KnownNodeQuery class)
$query = call_user_func(array($className, 'create'), 'KnownNode');
$remoteNodes = $query->where('KnownNode.Id IN ?', $remoteNodeIds)->find($con);
/* @var $localNodes PropelObjectCollection */
/* @var $remoteNodes PropelObjectCollection */
return array_merge($localNodes->getArrayCopy(), $remoteNodes->getArrayCopy());
}
public function preRunCheck()
{
if (!$this->opts->name) {
throw new Zend_Console_Getopt_Exception('Which node would you like to start? (use --name)');
}
Meshing_Utils::initialiseDb();
$node = P2POwnNodeQuery::create()->findOneByName($this->opts->name);
if (!$node) {
throw new Zend_Console_Getopt_Exception('A node of that name is not registered');
}
// Connect with this node's connection, and ensure there are rows in known_nodes
$conn = Propel::getConnection($node->getP2PConnection()->getName());
$schemaName = $node->getMeshingSchema()->getName();
Meshing_Utils::initialiseNodeDbs($schemaName);
// Obtain the number of trusted nodes
$class = Meshing_Node_Utils::getNodeClassName($schemaName, 'KnownNodePeer');
$knownNodeCount = call_user_func(array($class, 'doCount'), new Criteria(), $distinct = false, $conn);
// If there are no trust rows, we cannot start
if (!$knownNodeCount) {
throw new Zend_Console_Getopt_Exception('A node needs to trust other nodes before it can be started');
}
}
/**
* If a node identity for the same schema is found, an exception is thrown
*
* Requires node autoloaders to be set up (Meshing_Utils::initialiseNodeDbs)
*
* @param PDO $conn
*/
protected function checkNodeBuildCanProceed(PDO $conn)
{
// Don't do the checks if force is present
if (!$this->opts->force) {
// NB: this will only find identities for this schema
$peerName = Meshing_Node_Utils::getIdentityPeerClassName($this->opts->schema);
try {
$identityPeer = call_user_func(array($peerName, 'doSelectOne'), new Criteria(), $conn);
} catch (PropelException $e) {
// Table doesn't exist - nothing to overwrite!
$identityPeer = null;
}
// If we have an identity row, we must have found a node db of the same schema
if ($identityPeer) {
throw new Meshing_Console_RunException('A node of the same schema exists in this database already (use --force if you are happy to overwrite).');
}
}
return true;
}
