Examples with OConcurrentCreateException com.orientechnologies.orient.core.exception.OConcurrentCreateException used on opensource projects

Example 1 with OConcurrentCreateException

use of com.orientechnologies.orient.core.exception.OConcurrentCreateException in project orientdb by orientechnologies.

the class ODistributedResponseManager method manageConflicts.

protected RuntimeException manageConflicts() {
    if (!groupResponsesByResult || request.getTask().getQuorumType() == OCommandDistributedReplicateRequest.QUORUM_TYPE.NONE)
        // NO QUORUM
        return null;
    if (dManager.getNodeStatus() != ODistributedServerManager.NODE_STATUS.ONLINE)
        // CURRENT NODE OFFLINE: JUST RETURN
        return null;
    final int bestResponsesGroupIndex = getBestResponsesGroup();
    final List<ODistributedResponse> bestResponsesGroup = responseGroups.get(bestResponsesGroupIndex);
    final int maxCoherentResponses = bestResponsesGroup.size();
    final int conflicts = getExpectedResponses() - (maxCoherentResponses);
    if (isMinimumQuorumReached(true)) {
        // QUORUM SATISFIED
        if (responseGroups.size() == 1)
            // NO CONFLICT
            return null;
        if (checkNoWinnerCase(bestResponsesGroup))
            // TODO: CALL THE RECORD CONFLICT PIPELINE
            return null;
        if (fixNodesInConflict(bestResponsesGroup, conflicts))
            // FIX SUCCEED
            return null;
    }
    // QUORUM HASN'T BEEN REACHED
    if (ODistributedServerLog.isDebugEnabled()) {
        ODistributedServerLog.debug(this, dManager.getLocalNodeName(), null, DIRECTION.NONE, "Detected %d node(s) in timeout or in conflict and quorum (%d) has not been reached, rolling back changes for request (%s)", conflicts, quorum, request);
        ODistributedServerLog.debug(this, dManager.getLocalNodeName(), null, DIRECTION.NONE, composeConflictMessage());
    }
    if (!undoRequest()) {
        // SKIP UNDO
        return null;
    }
    // CHECK IF THERE IS AT LEAST ONE ODistributedRecordLockedException or OConcurrentCreateException
    for (Object r : responses.values()) {
        if (r instanceof ODistributedRecordLockedException)
            throw (ODistributedRecordLockedException) r;
        else if (r instanceof OConcurrentCreateException)
            throw (OConcurrentCreateException) r;
    }
    final Object goodResponsePayload = bestResponsesGroup.isEmpty() ? null : bestResponsesGroup.get(0).getPayload();
    if (goodResponsePayload instanceof RuntimeException)
        // RESPONSE IS ALREADY AN EXCEPTION: THROW THIS
        return (RuntimeException) goodResponsePayload;
    else if (goodResponsePayload instanceof Throwable)
        return OException.wrapException(new ODistributedException(composeConflictMessage()), (Throwable) goodResponsePayload);
    else {
        if (responseGroups.size() <= 2) {
            // CHECK IF THE BAD RESPONSE IS AN EXCEPTION, THEN PROPAGATE IT
            for (int i = 0; i < responseGroups.size(); ++i) {
                if (i == bestResponsesGroupIndex)
                    continue;
                final List<ODistributedResponse> badResponses = responseGroups.get(i);
                if (badResponses.get(0).getPayload() instanceof RuntimeException)
                    return (RuntimeException) badResponses.get(0).getPayload();
            }
        }
        return new ODistributedOperationException(composeConflictMessage());
    }
}