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The core of Neo4j Bolt Protocol, this contains the state machine for Bolt sessions.
/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j.
*
* Neo4j 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 .
*/
package org.neo4j.bolt.v1.packstream;
import io.netty.buffer.ByteBuf;
import java.io.IOException;
import static java.util.Objects.requireNonNull;
public class ByteBufInput implements PackInput
{
private ByteBuf buf;
public void start( ByteBuf newBuf )
{
assertNotStarted();
buf = requireNonNull( newBuf );
}
public void stop()
{
buf = null;
}
@Override
public byte readByte()
{
return buf.readByte();
}
@Override
public short readShort()
{
return buf.readShort();
}
@Override
public int readInt()
{
return buf.readInt();
}
@Override
public long readLong()
{
return buf.readLong();
}
@Override
public double readDouble()
{
return buf.readDouble();
}
@Override
public PackInput readBytes( byte[] into, int offset, int toRead ) throws IOException
{
buf.readBytes( into, offset, toRead );
return this;
}
@Override
public byte peekByte()
{
return buf.getByte( buf.readerIndex() );
}
private void assertNotStarted()
{
if ( buf != null )
{
throw new IllegalStateException( "Already started" );
}
}
}