org.shoal.adapter.store.commands.RemoveExpiredResultCommand Maven / Gradle / Ivy
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package org.shoal.adapter.store.commands;
import org.shoal.ha.cache.api.ShoalCacheLoggerConstants;
import org.shoal.ha.cache.impl.command.Command;
import org.shoal.ha.cache.impl.command.ReplicationCommandOpcode;
import org.shoal.ha.cache.impl.util.CommandResponse;
import org.shoal.ha.cache.impl.util.ResponseMediator;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.concurrent.atomic.AtomicLong;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* @author Mahesh Kannan
*/
public class RemoveExpiredResultCommand
extends Command {
protected static final Logger _logger = Logger.getLogger(ShoalCacheLoggerConstants.CACHE_REMOVE_COMMAND);
private String target;
private long tokenId;
private int result = 0;
public RemoveExpiredResultCommand(String target, long tokenId, int result) {
super(ReplicationCommandOpcode.REMOVE_EXPIRED_RESULT);
this.target = target;
this.tokenId = tokenId;
this.result = result;
super.setKey("RemExpResp:" + tokenId);
}
public boolean beforeTransmit() {
setTargetName(target);
return target != null;
}
private void writeObject(ObjectOutputStream ros) throws IOException {
ros.writeLong(tokenId);
ros.writeInt(result);
}
private void readObject(ObjectInputStream ris)
throws IOException, ClassNotFoundException {
tokenId = ris.readLong();
result = ris.readInt();
}
@Override
public void execute(String initiator) {
ResponseMediator respMed = getDataStoreContext().getResponseMediator();
CommandResponse resp = respMed.getCommandResponse(tokenId);
if (resp != null) {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, dsc.getInstanceName() + "For tokenId = " + tokenId + " received remove_expired_response value=" + result);
}
int pendingUpdates = 0;
synchronized (resp) {
Integer existingValue = (Integer) resp.getTransientResult();
Integer newResult = new Integer(existingValue.intValue() + result);
resp.setTransientResult(newResult);
pendingUpdates = resp.decrementAndGetExpectedUpdateCount();
}
if (pendingUpdates == 0) {
resp.setResult(resp.getTransientResult());
}
} else {
_logger.log(Level.FINE, "RemoveExpiredResult: TOKEN already removed for tokenId = " + tokenId);
}
}
@Override
protected boolean isArtificialKey() {
return true;
}
public String toString() {
return getName() + "(result=" + result + ")";
}
}