/*
* 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.AbstractNoSqlConnection;
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.bson.BSON;
import org.bson.Transformer;
import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.MongoException;
import com.mongodb.WriteConcern;
/**
* The MongoDB implementation of {@link NoSqlConnection}.
*/
public final class MongoDbConnection extends AbstractNoSqlConnection<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 WriteConcern writeConcern;
public MongoDbConnection(final DB database, final WriteConcern writeConcern, final String collectionName) {
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 {
this.collection.insert(object.unwrap(), this.writeConcern);
} catch (final MongoException e) {
throw new AppenderLoggingException("Failed to write log event to MongoDB due to error: " + e.getMessage(),
e);
}
}
@Override
public void closeImpl() {
// LOG4J2-1196
this.collection.getDB().getMongo().close();
}
}