package com.neocoretechs.bigsack.io.stream;
import java.io.IOException;
import java.io.InputStream;
import com.neocoretechs.bigsack.io.pooled.BlockAccessIndex;
import com.neocoretechs.bigsack.io.pooled.MappedBlockBuffer;
/*
* Copyright (c) 1998,2003, NeoCoreTechs
* All rights reserved.
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* Neither the name of NeoCoreTechs nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/**
* InputStream reading directly from the DB blocks
* obviates need for intermediate byte array
* @author Groff
*/
public final class DBInputStream extends InputStream {
MappedBlockBuffer sdbio;
BlockAccessIndex lbai;
public DBInputStream(BlockAccessIndex tlbai, MappedBlockBuffer tsdbio) {
lbai = tlbai;
sdbio = tsdbio;
}
public int read() throws IOException {
try {
return sdbio.readi(lbai);
} catch (Exception e) {
throw new IOException(e.toString());
}
}
}