/*
* 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 Lesser 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2007-2011 Joern Huxhorn
*
* Licensed 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 de.huxhorn.lilith.data.access.protobuf;
import de.huxhorn.lilith.data.access.AccessEvent;
import de.huxhorn.lilith.data.access.protobuf.generated.AccessProto;
import de.huxhorn.lilith.data.eventsource.EventIdentifier;
import de.huxhorn.lilith.data.eventsource.EventWrapper;
import de.huxhorn.lilith.data.eventsource.SourceIdentifier;
import de.huxhorn.sulky.codec.Encoder;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.zip.GZIPOutputStream;
public class AccessEventWrapperProtobufEncoder
implements Encoder<EventWrapper<AccessEvent>>
{
private boolean compressing;
public AccessEventWrapperProtobufEncoder(boolean compressing)
{
this.compressing = compressing;
}
public boolean isCompressing()
{
return compressing;
}
public void setCompressing(boolean compressing)
{
this.compressing = compressing;
}
public byte[] encode(EventWrapper<AccessEvent> wrapper)
{
AccessProto.EventWrapper converted = convert(wrapper);
if(converted == null)
{
return null;
}
if(!compressing)
{
return converted.toByteArray();
}
ByteArrayOutputStream out = new ByteArrayOutputStream();
GZIPOutputStream gos;
try
{
gos = new GZIPOutputStream(out);
converted.writeTo(gos);
gos.flush();
gos.close();
return out.toByteArray();
}
catch(IOException e)
{
// ignore
}
return null;
}
public static AccessProto.EventWrapper convert(EventWrapper<AccessEvent> wrapper)
{
if(wrapper == null)
{
return null;
}
AccessProto.EventWrapper.Builder builder = AccessProto.EventWrapper.newBuilder();
{
EventIdentifier eventId = wrapper.getEventIdentifier();
if(eventId != null)
{
builder.setEventIdentifier(convert(eventId));
}
}
{
AccessEvent event = wrapper.getEvent();
if(event != null)
{
builder.setEvent(AccessEventProtobufEncoder.convert(event));
}
}
return builder.build();
}
public static AccessProto.EventIdentifier convert(EventIdentifier eventId)
{
if(eventId == null)
{
return null;
}
AccessProto.EventIdentifier.Builder builder = AccessProto.EventIdentifier.newBuilder();
{
SourceIdentifier sourceId = eventId.getSourceIdentifier();
if(sourceId != null)
{
builder.setSourceIdentifier(convert(sourceId));
}
}
builder.setLocalId(eventId.getLocalId());
return builder.build();
}
public static AccessProto.SourceIdentifier convert(SourceIdentifier sourceId)
{
if(sourceId == null)
{
return null;
}
AccessProto.SourceIdentifier.Builder builder = AccessProto.SourceIdentifier.newBuilder();
{
String identifier = sourceId.getIdentifier();
if(identifier != null)
{
builder.setIdentifier(identifier);
}
}
{
String identifier = sourceId.getSecondaryIdentifier();
if(identifier != null)
{
builder.setSecondaryIdentifier(identifier);
}
}
return builder.build();
}
}