/
PackedInputArray.java
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/
PackedInputArray.java
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/*
* Copyright (c) "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 <http://www.gnu.org/licenses/>.
*/
package org.neo4j.bolt.packstream;
import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;
public class PackedInputArray implements PackInput
{
private final ByteArrayInputStream bytes;
private final DataInputStream data;
public PackedInputArray( byte[] bytes )
{
this.bytes = new ByteArrayInputStream( bytes );
this.data = new DataInputStream( this.bytes );
}
@Override
public byte readByte() throws IOException
{
return data.readByte();
}
@Override
public short readShort() throws IOException
{
return data.readShort();
}
@Override
public int readInt() throws IOException
{
return data.readInt();
}
@Override
public long readLong() throws IOException
{
return data.readLong();
}
@Override
public double readDouble() throws IOException
{
return data.readDouble();
}
@Override
public PackInput readBytes( byte[] into, int offset, int toRead ) throws IOException
{
// TODO: fix the interface and all implementations - we should probably
// TODO: return the no of bytes read instead of the instance
data.read( into, offset, toRead );
return this;
}
@Override
public byte peekByte() throws IOException
{
data.mark(1);
byte value = data.readByte();
data.reset();
return value;
}
@Override
public int readableBytes()
{
return bytes.available();
}
}