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package bjc.utils.ioutils.blocks;
import java.io.IOException;
import java.util.function.UnaryOperator;
public class MappedBlockReader implements BlockReader {
private BlockReader reader;
private Block current;
private UnaryOperator<Block> transform;
public MappedBlockReader(BlockReader source, UnaryOperator<Block> trans) {
reader = source;
transform = trans;
}
@Override
public boolean hasNextBlock() {
return reader.hasNextBlock();
}
@Override
public Block getBlock() {
return current;
}
@Override
public boolean nextBlock() {
if(hasNextBlock()) {
current = transform.apply(reader.next());
return true;
}
return false;
}
@Override
public int getBlockCount() {
return reader.getBlockCount();
}
@Override
public void close() throws IOException {
reader.close();
}
}
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