Examples with StatusCache org.candlepin.cache.StatusCache used on opensource projects

Example 1 with StatusCache

use of org.candlepin.cache.StatusCache in project candlepin by candlepin.

the class StatusResource method status.

/**
 * Retrieves the Status of the System
 * <p>
 * <pre>
 * {
 *   "result" : true,
 *   "version" : "0.9.10",
 *   "rulesVersion" : "5.8",
 *   "release" : "1",
 *   "standalone" : true,
 *   "timeUTC" : [date],
 *   "managerCapabilities" : [ "cores", "ram", "instance_multiplier" ],
 *   "rulesSource" : "DEFAULT"
 * }
 * </pre>
 * <p>
 * Status to see if a server is up and running
 *
 * @return a Status object
 * @httpcode 200
 */
@GET
@ApiOperation(value = "Status", notes = "Returns status of the server", authorizations = {})
@Produces({ MediaType.APPLICATION_JSON })
@SecurityHole(noAuth = true, anon = true)
public Status status() {
    StatusCache statusCache = candlepinCache.getStatusCache();
    Status cached = statusCache.getStatus();
    if (cached != null) {
        return cached;
    }
    /*
         * Originally this was used to indicate database connectivity being good/bad.
         * In reality it could never be false, the request would fail. This check has
         * been moved to GET /status/db.
         */
    boolean good = true;
    try {
        rulesCurator.getUpdatedFromDB();
    } catch (Exception e) {
        log.error("Error checking database connection", e);
        good = false;
    }
    CandlepinModeChange modeChange = modeManager.getLastCandlepinModeChange();
    if (modeChange.getMode() != Mode.NORMAL) {
        good = false;
    }
    Status status = new Status(good, version, release, standalone, jsProvider.getRulesVersion(), jsProvider.getRulesSource(), modeChange.getMode(), modeChange.getReason(), modeChange.getChangeTime());
    statusCache.setStatus(status);
    return status;
}