| package org.apache.vxquery.datamodel.builders.jsonitem; |
| |
| import java.io.IOException; |
| |
| import org.apache.hyracks.data.std.api.IMutableValueStorage; |
| import org.apache.hyracks.data.std.util.ArrayBackedValueStorage; |
| import org.apache.vxquery.datamodel.builders.base.AbstractBuilder; |
| import org.apache.vxquery.datamodel.builders.base.IBuilder; |
| import org.apache.vxquery.util.GrowableIntArray; |
| |
| public abstract class AbstractJsonBuilder extends AbstractBuilder implements IBuilder { |
| final GrowableIntArray slots = new GrowableIntArray(); |
| final ArrayBackedValueStorage dataArea = new ArrayBackedValueStorage(); |
| |
| @Override |
| public void reset(IMutableValueStorage mvs) throws IOException { |
| super.reset(mvs); |
| slots.clear(); |
| dataArea.reset(); |
| } |
| |
| @Override |
| public void finish() throws IOException { |
| int size = slots.getSize(); |
| out.writeInt(size); |
| if (size > 0) { |
| int[] slotArray = slots.getArray(); |
| for (int i = 0; i < size; ++i) { |
| out.writeInt(slotArray[i]); |
| } |
| out.write(dataArea.getByteArray(), dataArea.getStartOffset(), dataArea.getLength()); |
| } |
| } |
| } |