Examples with NextContentCriteria datawave.webservice.query.util.NextContentCriteria used on opensource projects

Example 1 with NextContentCriteria

use of datawave.webservice.query.util.NextContentCriteria in project datawave by NationalSecurityAgency.

the class QueryExecutorBean method next.

private BaseQueryResponse next(final String id, boolean checkForContentLookup) {
    // in case we don't make it to creating the response from the QueryLogic
    BaseQueryResponse response = responseObjectFactory.getEventQueryResponse();
    Collection<String> proxyServers = null;
    Principal p = ctx.getCallerPrincipal();
    String userid = p.getName();
    if (p instanceof DatawavePrincipal) {
        DatawavePrincipal dp = (DatawavePrincipal) p;
        userid = dp.getShortName();
        proxyServers = dp.getProxyServers();
    }
    Span span = null;
    RunningQuery query = null;
    Query contentLookupSettings = null;
    try {
        ctx.getUserTransaction().begin();
        // Not calling getQueryById() here. We don't want to pull the persisted definition.
        query = queryCache.get(id);
        // The lock should be released at the end of the method call.
        if (!queryCache.lock(id)) {
            throw new QueryException(DatawaveErrorCode.QUERY_LOCKED_ERROR);
        }
        // an error.
        if (null == query || null == query.getConnection()) {
            // status code.
            if (null == query) {
                List<Query> queries = persister.findById(id);
                if (queries == null || queries.size() != 1) {
                    throw new NotFoundQueryException(DatawaveErrorCode.NO_QUERY_OBJECT_MATCH, MessageFormat.format("{0}", id));
                }
            }
            throw new PreConditionFailedQueryException(DatawaveErrorCode.QUERY_TIMEOUT_OR_SERVER_ERROR, MessageFormat.format("id = {0}", id));
        } else {
            // Validate the query belongs to the caller
            if (!query.getSettings().getOwner().equals(userid)) {
                throw new UnauthorizedQueryException(DatawaveErrorCode.QUERY_OWNER_MISMATCH, MessageFormat.format("{0} != {1}", userid, query.getSettings().getOwner()));
            }
            // Set the active call and get next
            query.setActiveCall(true);
            response = _next(query, id, proxyServers, span);
            // Conditionally swap the standard response with content
            if (checkForContentLookup) {
                final Query settings = query.getSettings();
                final Parameter contentLookupParam = settings.findParameter(LookupUUIDUtil.PARAM_CONTENT_LOOKUP);
                if ((null != contentLookupParam) && Boolean.parseBoolean(contentLookupParam.getParameterValue())) {
                    contentLookupSettings = settings;
                }
            }
            // Unset the active call and return
            query.setActiveCall(false);
        }
    } catch (NoResultsException e) {
        if (query != null) {
            query.setActiveCall(false);
            if (query.getLogic().getCollectQueryMetrics()) {
                try {
                    // do not set the error message here - zero results is not an error that should be added to metrics
                    metrics.updateMetric(query.getMetric());
                } catch (Exception e1) {
                    log.error(e1.getMessage());
                }
            }
        }
        try {
            ctx.getUserTransaction().setRollbackOnly();
        } catch (Exception ex) {
            log.error("Error marking transaction for roll back", ex);
        }
        // close the query, as there were no results and we are done here
        close(id);
        // remember that we auto-closed this query
        closedQueryCache.add(id);
        throw e;
    } catch (DatawaveWebApplicationException e) {
        if (query != null) {
            query.setActiveCall(false);
            if (query.getLogic().getCollectQueryMetrics()) {
                query.getMetric().setError(e);
                try {
                    metrics.updateMetric(query.getMetric());
                } catch (Exception e1) {
                    log.error("Error updating query metrics", e1);
                }
            }
        }
        try {
            ctx.getUserTransaction().setRollbackOnly();
        } catch (Exception ex) {
            log.error("Error marking transaction for roll back", ex);
        }
        if (e.getCause() instanceof NoResultsException) {
            close(id);
            // remember that we auto-closed this query
            closedQueryCache.add(id);
        }
        throw e;
    } catch (Exception e) {
        log.error("Query Failed", e);
        if (query != null) {
            query.setActiveCall(false);
            if (query.getLogic().getCollectQueryMetrics() == true) {
                query.getMetric().setError(e);
                try {
                    metrics.updateMetric(query.getMetric());
                } catch (Exception e1) {
                    log.error("Error updating query metrics", e1);
                }
            }
        }
        try {
            ctx.getUserTransaction().setRollbackOnly();
        } catch (Exception ex) {
            log.error("Error marking transaction for roll back", ex);
        }
        QueryException qe = new QueryException(DatawaveErrorCode.QUERY_NEXT_ERROR, e, MessageFormat.format("query id: {0}", id));
        if (e.getCause() instanceof NoResultsException) {
            log.debug("Got a nested NoResultsException", e);
            close(id);
            // remember that we auto-closed this query
            closedQueryCache.add(id);
        } else {
            try {
                close(id);
            } catch (Exception ce) {
                log.error(qe, ce);
            }
            log.error(qe, e);
            response.addException(qe.getBottomQueryException());
        }
        int statusCode = qe.getBottomQueryException().getStatusCode();
        throw new DatawaveWebApplicationException(qe, response, statusCode);
    } finally {
        queryCache.unlock(id);
        try {
            if (ctx.getUserTransaction().getStatus() == Status.STATUS_MARKED_ROLLBACK) {
                ctx.getUserTransaction().rollback();
            } else if (ctx.getUserTransaction().getStatus() != Status.STATUS_NO_TRANSACTION) {
                // no reason to commit if transaction not started, ie Query not found exception
                ctx.getUserTransaction().commit();
            }
        } catch (IllegalStateException e) {
            log.error("Error committing transaction: thread not associated with transaction", e);
        } catch (RollbackException e) {
            log.error("Error committing transaction: marked for rollback due to error", e);
        } catch (HeuristicMixedException e) {
            log.error("Error committing transaction: partial commit of resources", e);
        } catch (HeuristicRollbackException e) {
            log.error("Error committing transaction: resources rolled back transaction", e);
        } catch (Exception e) {
            log.error("Error committing transaction: Unknown error", e);
        } finally {
            // Stop timing on this trace, if any
            if (span != null) {
                span.stop();
            }
        }
    }
    // If applicable, perform a paged content lookup (i.e., not streamed), replacing its results in the returned response
    if (null != contentLookupSettings) {
        final NextContentCriteria criteria = new NextContentCriteria(id, contentLookupSettings);
        response = this.lookupUUIDUtil.lookupContentByNextResponse(criteria, response);
    }
    return response;
}