| package edu.uci.ics.hyracks.storage.am.lsm.common.impls; |
| |
| import java.util.List; |
| |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallback; |
| |
| public class BlockingIOOperationCallbackWrapper implements ILSMIOOperationCallback { |
| |
| private boolean notified = false; |
| |
| private final ILSMIOOperationCallback wrappedCallback; |
| |
| public BlockingIOOperationCallbackWrapper(ILSMIOOperationCallback callback) { |
| this.wrappedCallback = callback; |
| } |
| |
| public synchronized void waitForIO() throws InterruptedException { |
| if (!notified) { |
| this.wait(); |
| } |
| notified = false; |
| } |
| |
| @Override |
| public void beforeOperation() throws HyracksDataException { |
| wrappedCallback.beforeOperation(); |
| } |
| |
| @Override |
| public void afterOperation(List<ILSMComponent> oldComponents, ILSMComponent newComponent) |
| throws HyracksDataException { |
| wrappedCallback.afterOperation(oldComponents, newComponent); |
| } |
| |
| @Override |
| public synchronized void afterFinalize(ILSMComponent newComponent) throws HyracksDataException { |
| wrappedCallback.afterFinalize(newComponent); |
| this.notifyAll(); |
| notified = true; |
| } |
| } |