/*
* Lilith - a log event viewer.
* Copyright (C) 2007-2011 Joern Huxhorn
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package de.huxhorn.lilith.engine;
import de.huxhorn.lilith.api.FileConstants;
import de.huxhorn.lilith.data.eventsource.EventWrapper;
import de.huxhorn.lilith.data.logging.LoggingEvent;
import de.huxhorn.lilith.data.logging.protobuf.CompressingLoggingEventWrapperProtobufCodec;
import de.huxhorn.lilith.data.logging.protobuf.LoggingEventWrapperProtobufCodec;
import de.huxhorn.sulky.codec.Codec;
import de.huxhorn.sulky.codec.filebuffer.MetaData;
import java.util.Map;
public class LoggingFileBufferFactory
extends FileBufferFactory<LoggingEvent>
{
public LoggingFileBufferFactory(LogFileFactory logFileFactory, Map<String, String> metaData)
{
super(logFileFactory, metaData);
}
public Codec<EventWrapper<LoggingEvent>> resolveCodec(MetaData metaData)
{
boolean compressed = false;
String format = null;
if(metaData != null)
{
Map<String, String> data = metaData.getData();
String compressionStr = data.get(FileConstants.COMPRESSION_KEY);
if(FileConstants.COMPRESSION_VALUE_GZIP.equals(compressionStr))
{
// TODO: support/handling of other compressions, e.g. Deflate
compressed = true;
}
format = data.get(FileConstants.CONTENT_FORMAT_KEY);
}
Codec<EventWrapper<LoggingEvent>> codec;
if(FileConstants.CONTENT_FORMAT_VALUE_PROTOBUF.equals(format))
{
if(compressed)
{
codec = new CompressingLoggingEventWrapperProtobufCodec();
}
else
{
codec = new LoggingEventWrapperProtobufCodec();
}
}
else
{
throw new IllegalArgumentException("Unknown content format " + format + "!");
}
return codec;
}
}