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Source Code for Apache Log4j NoSQL Appenders
Apache Log4j NoSQL Appenders allows applications to send events to NoSQL repositories. To use it, you need both the log4j-nosql as well as the appropriate driver for your NoSQL database type.
Bytecode (Java 8) for Apache Log4j NoSQL Appenders is provided in a separate JAR file like log4j-nosql-2.3.jar.
Source Code files for Apache Log4j NoSQL Appenders are provided in both binary packge like apache-log4j-2.3-bin.zip and source package like apache-log4j-2.3-src.zip. You can download them at Apache Log4j Website.
You can also browse Source Code files for Apache Log4j NoSQL Appenders 2.3 below.
✍: FYIcenter.com
⏎ org/apache/logging/log4j/nosql/appender/mongodb/MongoDbConnection.java
/* * 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. */ package org.apache.logging.log4j.nosql.appender.mongodb; import org.apache.logging.log4j.Level; import org.apache.logging.log4j.Logger; import org.apache.logging.log4j.core.appender.AppenderLoggingException; import org.apache.logging.log4j.nosql.appender.NoSqlConnection; import org.apache.logging.log4j.nosql.appender.NoSqlObject; import org.apache.logging.log4j.status.StatusLogger; import org.apache.logging.log4j.util.Strings; import org.bson.BSON; import org.bson.Transformer; import com.mongodb.BasicDBObject; import com.mongodb.DB; import com.mongodb.DBCollection; import com.mongodb.Mongo; import com.mongodb.MongoException; import com.mongodb.WriteConcern; import com.mongodb.WriteResult; /** * The MongoDB implementation of {@link NoSqlConnection}. */ public final class MongoDbConnection implements NoSqlConnection<BasicDBObject, MongoDbObject> { private static final Logger LOGGER = StatusLogger.getLogger(); static { BSON.addEncodingHook(Level.class, new Transformer() { @Override public Object transform(final Object o) { if (o instanceof Level) { return ((Level) o).name(); } return o; } }); } private final DBCollection collection; private final Mongo mongo; private final WriteConcern writeConcern; public MongoDbConnection(final DB database, final WriteConcern writeConcern, final String collectionName) { this.mongo = database.getMongo(); this.collection = database.getCollection(collectionName); this.writeConcern = writeConcern; } @Override public MongoDbObject createObject() { return new MongoDbObject(); } @Override public MongoDbObject[] createList(final int length) { return new MongoDbObject[length]; } @Override public void insertObject(final NoSqlObject<BasicDBObject> object) { try { final WriteResult result = this.collection.insert(object.unwrap(), this.writeConcern); if (Strings.isNotEmpty(result.getError())) { throw new AppenderLoggingException("Failed to write log event to MongoDB due to error: " + result.getError() + '.'); } } catch (final MongoException e) { throw new AppenderLoggingException("Failed to write log event to MongoDB due to error: " + e.getMessage(), e); } } @Override public void close() { // there's no need to call this.mongo.close() since that literally closes the connection // MongoDBClient uses internal connection pooling // for more details, see LOG4J2-591 } @Override public boolean isClosed() { return !this.mongo.getConnector().isOpen(); } /** * To prevent class loading issues during plugin discovery, this code cannot live within MongoDbProvider. This * is because of how Java treats references to Exception classes different from references to other classes. When * Java loads a class, it normally won't load that class's dependent classes until and unless A) they are used, B) * the class being loaded extends or implements those classes, or C) those classes are the types of static members * in the class. However, exceptions that a class uses are always loaded when the class is loaded, even before * they are actually used. * * @param database The database to authenticate * @param username The username to authenticate with * @param password The password to authenticate with */ static void authenticate(final DB database, final String username, final String password) { try { if (!database.authenticate(username, password.toCharArray())) { LOGGER.error("Failed to authenticate against MongoDB server. Unknown error."); } } catch (final MongoException e) { LOGGER.error("Failed to authenticate against MongoDB: " + e.getMessage(), e); } catch (final IllegalStateException e) { LOGGER.error("Factory-supplied MongoDB database connection already authenticated with different" + "credentials but lost connection.", e); } } }
⏎ org/apache/logging/log4j/nosql/appender/mongodb/MongoDbConnection.java
Or download all of them as a single archive file:
File name: log4j-jmx-nosql-2.3-sources.jar File size: 23448 bytes Release date: 2020-07-03 Download
⇒ Downloading Apache Log4j 2.4.1 Package
⇐ Source Code for Apache Log4j JMX GUI
2015-11-04, 10291👍, 0💬
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