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<?php
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Appender for writing to MongoDB.
*
* This class was originally contributed by Vladimir Gorej.
*
* ## Configurable parameters: ##
*
* - **host** - Server on which mongodb instance is located.
* - **port** - Port on which the instance is bound.
* - **databaseName** - Name of the database to which to log.
* - **collectionName** - Name of the target collection within the given database.
* - **username** - Username used to connect to the database.
* - **password** - Password used to connect to the database.
* - **timeout** - For how long the driver should try to connect to the database (in milliseconds).
*
* @version $Revision: 1346363 $
* @package log4php
* @subpackage appenders
* @since 2.1
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
* @link http://logging.apache.org/log4php/docs/appenders/mongodb.html Appender documentation
* @link http://github.com/log4mongo/log4mongo-php Vladimir Gorej's original submission.
* @link http://www.mongodb.org/ MongoDB website.
*/
class LoggerAppenderMongoDB extends LoggerAppender {
// ******************************************
// ** Constants **
// ******************************************
/** Default prefix for the {@link $host}. */
const DEFAULT_MONGO_URL_PREFIX = 'mongodb://';
/** Default value for {@link $host}, without a prefix. */
const DEFAULT_MONGO_HOST = 'localhost';
/** Default value for {@link $port} */
const DEFAULT_MONGO_PORT = 27017;
/** Default value for {@link $databaseName} */
const DEFAULT_DB_NAME = 'log4php_mongodb';
/** Default value for {@link $collectionName} */
const DEFAULT_COLLECTION_NAME = 'logs';
/** Default value for {@link $timeout} */
const DEFAULT_TIMEOUT_VALUE = 3000;
// ******************************************
// ** Configurable parameters **
// ******************************************
/** Server on which mongodb instance is located. */
protected $host;
/** Port on which the instance is bound. */
protected $port;
/** Name of the database to which to log. */
protected $databaseName;
/** Name of the collection within the given database. */
protected $collectionName;
/** Username used to connect to the database. */
protected $userName;
/** Password used to connect to the database. */
protected $password;
/** Timeout value used when connecting to the database (in milliseconds). */
protected $timeout;
// ******************************************
// ** Member variables **
// ******************************************
/**
* Connection to the MongoDB instance.
* @var Mongo
*/
protected $connection;
/**
* The collection to which log is written.
* @var MongoCollection
*/
protected $collection;
public function __construct($name = '') {
parent::__construct($name);
$this->host = self::DEFAULT_MONGO_URL_PREFIX . self::DEFAULT_MONGO_HOST;
$this->port = self::DEFAULT_MONGO_PORT;
$this->databaseName = self::DEFAULT_DB_NAME;
$this->collectionName = self::DEFAULT_COLLECTION_NAME;
$this->timeout = self::DEFAULT_TIMEOUT_VALUE;
$this->requiresLayout = false;
}
/**
* Setup db connection.
* Based on defined options, this method connects to the database and
* creates a {@link $collection}.
*/
public function activateOptions() {
try {
$this->connection = new Mongo(sprintf('%s:%d', $this->host, $this->port), array('timeout' => $this->timeout));
$db = $this->connection->selectDB($this->databaseName);
if ($this->userName !== null && $this->password !== null) {
$authResult = $db->authenticate($this->userName, $this->password);
if ($authResult['ok'] == floatval(0)) {
throw new Exception($authResult['errmsg'], $authResult['ok']);
}
}
$this->collection = $db->selectCollection($this->collectionName);
} catch (MongoConnectionException $ex) {
$this->closed = true;
$this->warn(sprintf('Failed to connect to mongo deamon: %s', $ex->getMessage()));
} catch (InvalidArgumentException $ex) {
$this->closed = true;
$this->warn(sprintf('Error while selecting mongo database: %s', $ex->getMessage()));
} catch (Exception $ex) {
$this->closed = true;
$this->warn('Invalid credentials for mongo database authentication');
}
}
/**
* Appends a new event to the mongo database.
*
* @param LoggerLoggingEvent $event
*/
public function append(LoggerLoggingEvent $event) {
try {
if ($this->collection != null) {
$this->collection->insert($this->format($event));
}
} catch (MongoCursorException $ex) {
$this->warn(sprintf('Error while writing to mongo collection: %s', $ex->getMessage()));
}
}
/**
* Converts the logging event into an array which can be logged to mongodb.
*
* @param LoggerLoggingEvent $event
* @return array The array representation of the logging event.
*/
protected function format(LoggerLoggingEvent $event) {
$timestampSec = (int) $event->getTimestamp();
$timestampUsec = (int) (($event->getTimestamp() - $timestampSec) * 1000000);
$document = array(
'timestamp' => new MongoDate($timestampSec, $timestampUsec),
'level' => $event->getLevel()->toString(),
'thread' => (int) $event->getThreadName(),
'message' => $event->getMessage(),
'loggerName' => $event->getLoggerName()
);
$locationInfo = $event->getLocationInformation();
if ($locationInfo != null) {
$document['fileName'] = $locationInfo->getFileName();
$document['method'] = $locationInfo->getMethodName();
$document['lineNumber'] = ($locationInfo->getLineNumber() == 'NA') ? 'NA' : (int) $locationInfo->getLineNumber();
$document['className'] = $locationInfo->getClassName();
}
$throwableInfo = $event->getThrowableInformation();
if ($throwableInfo != null) {
$document['exception'] = $this->formatThrowable($throwableInfo->getThrowable());
}
return $document;
}
/**
* Converts an Exception into an array which can be logged to mongodb.
*
* Supports innner exceptions (PHP >= 5.3)
*
* @param Exception $ex
* @return array
*/
protected function formatThrowable(Exception $ex) {
$array = array(
'message' => $ex->getMessage(),
'code' => $ex->getCode(),
'stackTrace' => $ex->getTraceAsString(),
);
if (method_exists($ex, 'getPrevious') && $ex->getPrevious() !== null) {
$array['innerException'] = $this->formatThrowable($ex->getPrevious());
}
return $array;
}
/**
* Closes the connection to the logging database
*/
public function close() {
if($this->closed != true) {
$this->collection = null;
if ($this->connection !== null) {
$this->connection->close();
$this->connection = null;
}
$this->closed = true;
}
}
/**
* Sets the value of {@link $host} parameter.
* @param string $host
*/
public function setHost($host) {
if (!preg_match('/^mongodb\:\/\//', $host)) {
$host = self::DEFAULT_MONGO_URL_PREFIX . $host;
}
$this->host = $host;
}
/**
* Returns the value of {@link $host} parameter.
* @return string
*/
public function getHost() {
return $this->host;
}
/**
* Sets the value of {@link $port} parameter.
* @param int $port
*/
public function setPort($port) {
$this->setPositiveInteger('port', $port);
}
/**
* Returns the value of {@link $port} parameter.
* @return int
*/
public function getPort() {
return $this->port;
}
/**
* Sets the value of {@link $databaseName} parameter.
* @param string $databaseName
*/
public function setDatabaseName($databaseName) {
$this->setString('databaseName', $databaseName);
}
/**
* Returns the value of {@link $databaseName} parameter.
* @return string
*/
public function getDatabaseName() {
return $this->databaseName;
}
/**
* Sets the value of {@link $collectionName} parameter.
* @param string $collectionName
*/
public function setCollectionName($collectionName) {
$this->setString('collectionName', $collectionName);
}
/**
* Returns the value of {@link $collectionName} parameter.
* @return string
*/
public function getCollectionName() {
return $this->collectionName;
}
/**
* Sets the value of {@link $userName} parameter.
* @param string $userName
*/
public function setUserName($userName) {
$this->setString('userName', $userName, true);
}
/**
* Returns the value of {@link $userName} parameter.
* @return string
*/
public function getUserName() {
return $this->userName;
}
/**
* Sets the value of {@link $password} parameter.
* @param string $password
*/
public function setPassword($password) {
$this->setString('password', $password, true);
}
/**
* Returns the value of {@link $password} parameter.
* @return string
*/
public function getPassword() {
return $this->password;
}
/**
* Sets the value of {@link $timeout} parameter.
* @param int $timeout
*/
public function setTimeout($timeout) {
$this->setPositiveInteger('timeout', $timeout);
}
/**
* Returns the value of {@link $timeout} parameter.
* @return int
*/
public function getTimeout() {
return $this->timeout;
}
/**
* Returns the mongodb connection.
* @return Mongo
*/
public function getConnection() {
return $this->connection;
}
/**
* Returns the active mongodb collection.
* @return MongoCollection
*/
public function getCollection() {
return $this->collection;
}
}