X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=application%2Fhub%2Fmain%2Fclass_BaseHubSystem.php;h=a147db4370dac946fd666aeda250e394e49b84a8;hb=c13ca7c93ee55b02d1d3320fca5d2d8d6e953768;hp=f1595d1612222bfb5000d2c04cb05a075273fa76;hpb=39800cef903083fe82bb4e0d599b7c603c7eb44c;p=hub.git

diff --git a/application/hub/main/class_BaseHubSystem.php b/application/hub/main/class_BaseHubSystem.php
index f1595d161..a147db437 100644
--- a/application/hub/main/class_BaseHubSystem.php
+++ b/application/hub/main/class_BaseHubSystem.php
@@ -4,7 +4,7 @@
  *
  * @author		Roland Haeder <webmaster@ship-simu.org>
  * @version		0.0.0
- * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009, 2010 Hub Developer Team
+ * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2012 Hub Developer Team
  * @license		GNU GPL 3.0 or any newer version
  * @link		http://www.ship-simu.org
  *
@@ -22,20 +22,64 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 class BaseHubSystem extends BaseFrameworkSystem {
+	// Exception codes
+	const EXCEPTION_UNSUPPORTED_ERROR_HANDLER = 0x900;
+	const EXCEPTION_CHUNK_ALREADY_ASSEMBLED   = 0x901;
+
+	/**
+	 * Separator for all bootstrap node entries
+	 */
+	const BOOTSTRAP_NODES_SEPARATOR = ';';
+
 	/**
 	 * An instance of a node
 	 */
-	private $nodeInstance = null;
+	private $nodeInstance = NULL;
+
+	/**
+	 * An instance of a cruncher
+	 */
+	private $cruncherInstance = NULL;
 
 	/**
 	 * Listener instance
 	 */
-	private $listenerInstance = null;
+	private $listenerInstance = NULL;
 
 	/**
 	 * A network package handler instance
 	 */
-	private $packageInstance = null;
+	private $packageInstance = NULL;
+
+	/**
+	 * A Receivable instance
+	 */
+	private $receiverInstance = NULL;
+
+	/**
+	 * State instance
+	 */
+	private $stateInstance = NULL;
+
+	/**
+	 * Listener pool instance
+	 */
+	private $listenerPoolInstance = NULL;
+
+	/**
+	 * Fragmenter instance
+	 */
+	private $fragmenterInstance = NULL;
+
+	/**
+	 * Decoder instance
+	 */
+	private $decoderInstance = NULL;
+
+	/**
+	 * Assembler instance
+	 */
+	private $assemblerInstance = NULL;
 
 	/**
 	 * Protected constructor
@@ -48,6 +92,44 @@ class BaseHubSystem extends BaseFrameworkSystem {
 		parent::__construct($className);
 	}
 
+	/**
+	 * Getter for node instance
+	 *
+	 * @return	$nodeInstance	An instance of a node node
+	 */
+	public final function getNodeInstance () {
+		return $this->nodeInstance;
+	}
+
+	/**
+	 * Setter for node instance
+	 *
+	 * @param	$nodeInstance	An instance of a node node
+	 * @return	void
+	 */
+	protected final function setNodeInstance (NodeHelper $nodeInstance) {
+		$this->nodeInstance = $nodeInstance;
+	}
+
+	/**
+	 * Getter for cruncher instance
+	 *
+	 * @return	$cruncherInstance	An instance of a cruncher cruncher
+	 */
+	public final function getCruncherInstance () {
+		return $this->cruncherInstance;
+	}
+
+	/**
+	 * Setter for cruncher instance
+	 *
+	 * @param	$cruncherInstance	An instance of a cruncher cruncher
+	 * @return	void
+	 */
+	protected final function setCruncherInstance (CruncherHelper $cruncherInstance) {
+		$this->cruncherInstance = $cruncherInstance;
+	}
+
 	/**
 	 * Setter for listener instance
 	 *
@@ -68,41 +150,328 @@ class BaseHubSystem extends BaseFrameworkSystem {
 	}
 
 	/**
-	 * Setter for node instance
+	 * Setter for network package handler instance
 	 *
-	 * @param	$nodeInstance	An instance of a node node
+	 * @param	$packageInstance	The network package instance we shall set
 	 * @return	void
 	 */
-	protected final function setNodeInstance (NodeHelper $nodeInstance) {
-		$this->nodeInstance = $nodeInstance;
+	protected final function setPackageInstance (Deliverable $packageInstance) {
+		$this->packageInstance = $packageInstance;
 	}
 
 	/**
-	 * Getter for node instance
+	 * Getter for network package handler instance
 	 *
-	 * @return	$nodeInstance	An instance of a node node
+	 * @return	$packageInstance	The network package handler instance we shall set
 	 */
-	public final function getNodeInstance () {
-		return $this->nodeInstance;
+	protected final function getPackageInstance () {
+		return $this->packageInstance;
 	}
 
 	/**
-	 * Setter for network package handler instance
+	 * Setter for receiver instance
 	 *
-	 * @param	$packageInstance	The network package handler instance we shall set
+	 * @param	$receiverInstance	A Receivable instance we shall set
 	 * @return	void
 	 */
-	protected final function setPackageInstance (Networkable $packageInstance) {
-		$this->packageInstance = $packageInstance;
+	protected final function setReceiverInstance (Receivable $receiverInstance) {
+		$this->receiverInstance = $receiverInstance;
 	}
 
 	/**
-	 * Getter for network package handler instance
+	 * Getter for receiver instance
 	 *
-	 * @return	$packageInstance	The network package handler instance we shall set
+	 * @return	$receiverInstance	A Receivable instance we shall get
 	 */
-	protected final function getPackageInstance () {
-		return $this->packageInstance;
+	protected final function getReceiverInstance () {
+		return $this->receiverInstance;
+	}
+
+	/**
+	 * Setter for state instance
+	 *
+	 * @param	$stateInstance	A Stateable instance
+	 * @return	void
+	 */
+	public final function setStateInstance (Stateable $stateInstance) {
+		$this->stateInstance = $stateInstance;
+	}
+
+	/**
+	 * Getter for state instance
+	 *
+	 * @return	$stateInstance	A Stateable instance
+	 */
+	public final function getStateInstance () {
+		return $this->stateInstance;
+	}
+
+	/**
+	 * Setter for listener pool instance
+	 *
+	 * @param	$listenerPoolInstance	Our new listener pool instance
+	 * @return	void
+	 */
+	protected final function setListenerPoolInstance (PoolableListener $listenerPoolInstance) {
+		$this->listenerPoolInstance = $listenerPoolInstance;
+	}
+
+	/**
+	 * Getter for listener pool instance
+	 *
+	 * @return	$listenerPoolInstance	Our current listener pool instance
+	 */
+	public final function getListenerPoolInstance () {
+		return $this->listenerPoolInstance;
+	}
+
+	/**
+	 * Setter for fragmenter instance
+	 *
+	 * @param	$fragmenterInstance		A Fragmentable instance
+	 * @return	void
+	 */
+	protected final function setFragmenterInstance (Fragmentable $fragmenterInstance) {
+		$this->fragmenterInstance = $fragmenterInstance;
+	}
+
+	/**
+	 * Getter for fragmenter instance
+	 *
+	 * @return	$fragmenterInstance		A Fragmentable instance
+	 */
+	protected final function getFragmenterInstance () {
+		return $this->fragmenterInstance;
+	}
+
+	/**
+	 * Setter for decoder instance
+	 *
+	 * @param	$decoderInstance	A Decodeable instance
+	 * @return	void
+	 */
+	protected final function setDecoderInstance (Decodeable $decoderInstance) {
+		$this->decoderInstance = $decoderInstance;
+	}
+
+	/**
+	 * Getter for decoder instance
+	 *
+	 * @return	$decoderInstance	A Decodeable instance
+	 */
+	protected final function getDecoderInstance () {
+		return $this->decoderInstance;
+	}
+
+	/**
+	 * Setter for assembler instance
+	 *
+	 * @param	$assemblerInstance	A Decodeable instance
+	 * @return	void
+	 */
+	protected final function setAssemblerInstance (Assembler $assemblerInstance) {
+		$this->assemblerInstance = $assemblerInstance;
+	}
+
+	/**
+	 * Getter for assembler instance
+	 *
+	 * @return	$assemblerInstance	A Decodeable instance
+	 */
+	protected final function getAssemblerInstance () {
+		return $this->assemblerInstance;
+	}
+
+	/**
+	 * Setter for node id
+	 *
+	 * @param	$nodeId		Our new node id
+	 * @return	void
+	 */
+	protected final function setNodeId ($nodeId) {
+		// Set it config now
+		$this->getConfigInstance()->setConfigEntry('node_id', (string) $nodeId);
+	}
+
+	/**
+	 * Getter for node id
+	 *
+	 * @return	$nodeId		Current node id
+	 */
+	public final function getNodeId () {
+		// Get it from config
+		return $this->getConfigInstance()->getConfigEntry('node_id');
+	}
+
+	/**
+	 * Setter for session id
+	 *
+	 * @param	$sessionId		Our new session id
+	 * @return	void
+	 */
+	protected final function setSessionId ($sessionId) {
+		$this->getConfigInstance()->setConfigEntry('session_id', (string) $sessionId);
+	}
+
+	/**
+	 * Getter for session id
+	 *
+	 * @return	$sessionId		Current session id
+	 */
+	public final function getSessionId () {
+		return $this->getConfigInstance()->getConfigEntry('session_id');
+	}
+
+	/**
+	 * Constructs a callable method name from given socket error code. If the
+	 * method is not found, a generic one is used.
+	 *
+	 * @param	$errorCode		Error code from socket_last_error()
+	 * @return	$handlerName	Call-back method name for the error handler
+	 * @throws	UnsupportedSocketErrorHandlerException If the error handler is not implemented
+	 */
+	protected function getSocketErrorHandlerFromCode ($errorCode) {
+		// Create a name from translated error code
+		$handlerName = 'socketError' . $this->convertToClassName($this->translateSocketErrorCodeToName($errorCode)) . 'Handler';
+
+		// Is the call-back method there?
+		if (!method_exists($this, $handlerName)) {
+			// Please implement this
+			throw new UnsupportedSocketErrorHandlerException(array($this, $handlerName, $errorCode), self::EXCEPTION_UNSUPPORTED_ERROR_HANDLER);
+		} // END - if
+
+		// Return it
+		return $handlerName;
+	}
+
+	/**
+	 * Handles socket error for given socket resource and peer data. This method
+	 * validates $socketResource if it is a valid resource (see is_resource())
+	 * but assumes valid data in array $recipientData, except that
+	 * count($recipientData) is always 2.
+	 *
+	 * @param	$socketResource		A valid socket resource
+	 * @param	$recipientData		An array with two elements: 0=IP number, 1=port number
+	 * @return	void
+	 * @throws	InvalidSocketException	If $socketResource is no socket resource
+	 * @throws	NoSocketErrorDetectedException	If socket_last_error() gives zero back
+	 */
+	protected final function handleSocketError ($socketResource, array $recipientData) {
+		// This method handles only socket resources
+		if (!is_resource($socketResource)) {
+			// No resource, abort here
+			throw new InvalidSocketException(array($this, $socketResource), BaseListener::EXCEPTION_INVALID_SOCKET);
+		} // END - if
+
+		// Check count of array, should be two
+		assert(count($recipientData) == 2);
+
+		// Get error code for first validation (0 is not an error)
+		$errorCode = socket_last_error($socketResource);
+
+		// If the error code is zero, someone called this method without an error
+		if ($errorCode == 0) {
+			// No error detected (or previously cleared outside this method)
+			throw new NoSocketErrorDetectedException(array($this, $socketResource), BaseListener::EXCEPTION_NO_SOCKET_ERROR);
+		} // END - if
+
+		// Get handler (method) name
+		$handlerName = $this->getSocketErrorHandlerFromCode($errorCode);
+
+		// Call-back the error handler method
+		call_user_func(array($this, $handlerName), $socketResource);
+
+		// Finally clear the error because it has been handled
+		socket_clear_error($socketResource);
+	}
+
+	/**
+	 * Checks whether the final (last) chunk is valid
+	 *
+	 * @param	$chunks		An array with chunks and (hopefully) a valid final chunk
+	 * @return	$isValid	Whether the final (last) chunk is valid
+	 */
+	protected function isValidFinalChunk (array $chunks) {
+		// Default is all fine
+		$isValid = true;
+
+		// Split the (possible) EOP chunk
+		$chunkSplits = explode(PackageFragmenter::CHUNK_DATA_HASH_SEPARATOR, $chunks[count($chunks) - 1]);
+
+		// Make sure chunks with only 3 elements are parsed (for details see ChunkHandler)
+		//* NOISY-DEBUG: */ $this->debugOutput('eopChunk=' . $chunks[count($chunks) - 1] . ',chunkSplits=' . print_r($chunkSplits,true));
+		assert(count($chunkSplits) == 3);
+
+		// Validate final chunk
+		if (substr($chunkSplits[ChunkHandler::CHUNK_SPLITS_INDEX_RAW_DATA], 0, strlen(PackageFragmenter::END_OF_PACKAGE_IDENTIFIER)) != PackageFragmenter::END_OF_PACKAGE_IDENTIFIER) {
+			// Not fine
+			$isValid = false;
+		} elseif (substr_count($chunkSplits[ChunkHandler::CHUNK_SPLITS_INDEX_RAW_DATA], PackageFragmenter::CHUNK_HASH_SEPARATOR) != 1) {
+			// CHUNK_HASH_SEPARATOR shall only be found once
+			$isValid = false;
+		}
+
+		// Return status
+		return $isValid;
+	}
+
+	/**
+	 * Translates socket error codes into our own internal names which can be
+	 * used for call-backs.
+	 *
+	 * @param	$errorCode	The error code from socket_last_error() to be translated
+	 * @return	$errorName	The translated name (all lower-case, with underlines)
+	 */
+	public function translateSocketErrorCodeToName ($errorCode) {
+		// Nothing bad happened by default
+		$errorName = BaseRawDataHandler::SOCKET_CONNECTED;
+
+		// Is the code a number, then we have to change it
+		switch ($errorCode) {
+			case 0: // Silently ignored, the socket is connected
+				break;
+
+			case 11:  // "Resource temporary unavailable"
+				$errorName = BaseRawDataHandler::SOCKET_ERROR_RESOURCE_UNAVAILABLE;
+				break;
+
+			case 107: // "Transport end-point not connected"
+			case 134: // On some (?) systems for 'transport end-point not connected'
+				// @TODO On some systems it is 134, on some 107?
+				$errorName = BaseRawDataHandler::SOCKET_ERROR_TRANSPORT_ENDPOINT;
+				break;
+
+			case 110: // "Connection timed out"
+				$errorName = BaseRawDataHandler::SOCKET_ERROR_CONNECTION_TIMED_OUT;
+				break;
+
+			case 111: // "Connection refused"
+				$errorName = BaseRawDataHandler::SOCKET_ERROR_CONNECTION_REFUSED;
+				break;
+
+			case 113: // "No route to host"
+				$errorName = BaseRawDataHandler::SOCKET_ERROR_NO_ROUTE_TO_HOST;
+				break;
+
+			case 114: // "Operation already in progress"
+				$errorName = BaseRawDataHandler::SOCKET_ERROR_OPERATION_ALREADY_PROGRESS;
+				break;
+
+			case 115: // "Operation now in progress"
+				$errorName = BaseRawDataHandler::SOCKET_ERROR_OPERATION_IN_PROGRESS;
+				break;
+
+			default: // Everything else <> 0
+				// Unhandled error code detected, so first debug it because we may want to handle it like the others
+				$this->debugOutput('[' . __METHOD__ . ':' . __LINE__ . '] UNKNOWN ERROR CODE = ' . $errorCode . ', MESSAGE = ' . socket_strerror($errorCode));
+
+				// Change it only in this class
+				$errorName = BaseRawDataHandler::SOCKET_ERROR_UNKNOWN;
+				break;
+		}
+
+		// Return translated name
+		return $errorName;
 	}
 
 	/**
@@ -114,7 +483,7 @@ class BaseHubSystem extends BaseFrameworkSystem {
 	 */
 	public function shutdownSocket ($socketResource) {
 		// Debug message
-		$this->debugOutput('Shutting down socket ' . $socketResource . ' ...');
+		$this->debugOutput('HUB-SYSTEM: Shutting down socket resource ' . $socketResource . ' with state ' . $this->getPrintableState() . ' ...');
 
 		// Set socket resource
 		$this->setSocketResource($socketResource);
@@ -122,9 +491,58 @@ class BaseHubSystem extends BaseFrameworkSystem {
 		// Get a visitor instance
 		$visitorInstance = ObjectFactory::createObjectByConfiguredName('shutdown_socket_visitor_class');
 
+		// Debug output
+		$this->debugOutput('HUB-SYSTEM:' . $this->__toString() . ': visitorInstance=' . $visitorInstance->__toString());
+
 		// Call the visitor
 		$this->accept($visitorInstance);
 	}
+
+	/**
+	 * Half-shuts down a given socket resource. This method does only ease calling
+	 * an other visitor than shutdownSocket() does.
+	 *
+	 * @param	$socketResource		A valid socket resource
+	 * @return	void
+	 */
+	public function halfShutdownSocket ($socketResource) {
+		// Debug message
+		$this->debugOutput('HUB-SYSTEM: Half-shutting down socket resource ' . $socketResource . ' with state ' . $this->getPrintableState() . ' ...');
+
+		// Set socket resource
+		$this->setSocketResource($socketResource);
+
+		// Get a visitor instance
+		$visitorInstance = ObjectFactory::createObjectByConfiguredName('half_shutdown_socket_visitor_class');
+
+		// Debug output
+		$this->debugOutput('HUB-SYSTEM:' . $this->__toString() . ': visitorInstance=' . $visitorInstance->__toString());
+
+		// Call the visitor
+		$this->accept($visitorInstance);
+	}
+
+	/**
+	 * "Getter" for a printable state name
+	 *
+	 * @return	$stateName	Name of the node's state in a printable format
+	 */
+	public final function getPrintableState () {
+		// Default is 'null'
+		$stateName = 'null';
+
+		// Get the state instance
+		$stateInstance = $this->getStateInstance();
+
+		// Is it an instance of Stateable?
+		if ($stateInstance instanceof Stateable) {
+			// Then use that state name
+			$stateName = $stateInstance->getStateName();
+		} // END - if
+
+		// Return result
+		return $stateName;
+	}
 }
 
 // [EOF]