Package org.candlepin.resource

Source Code of org.candlepin.resource.StatusResource

/**
* Copyright (c) 2009 - 2012 Red Hat, Inc.
*
* This software is licensed to you under the GNU General Public License,
* version 2 (GPLv2). There is NO WARRANTY for this software, express or
* implied, including the implied warranties of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv2
* along with this software; if not, see
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
* Red Hat trademarks are not licensed under GPLv2. No permission is
* granted to use or replicate Red Hat trademarks that are incorporated
* in this software or its documentation.
*/
package org.candlepin.resource;

import org.candlepin.auth.interceptor.SecurityHole;
import org.candlepin.common.config.Configuration;
import org.candlepin.common.util.VersionUtil;
import org.candlepin.config.ConfigProperties;
import org.candlepin.model.RulesCurator;
import org.candlepin.model.Status;

import com.google.inject.Inject;

import java.util.Map;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

/**
* Status Resource
*/
@Path("/status")
public class StatusResource {

    /**
     * The current version of candlepin
     */
    private String version = "Unknown";

    /**
     * The current git release
     */
    private String release = "Unknown";

    private boolean standalone = true;

    private RulesCurator rulesCurator;

    @Inject
    public StatusResource(RulesCurator rulesCurator,
                          Configuration config) {
        this.rulesCurator = rulesCurator;

        Map<String, String> map = VersionUtil.getVersionMap();
        version = map.get("version");
        release = map.get("release");

        if (config == null || !config.getBoolean(ConfigProperties.STANDALONE)) {
            standalone = false;
        }
    }

    /**
     * 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
    @Produces({ MediaType.APPLICATION_JSON})
    @SecurityHole(noAuth = true, anon = true)
    public Status status() {
        boolean good = true;
        try {
            if (rulesCurator != null) {
                rulesCurator.listAll();
            }
        }
        catch (Exception e) {
            good = false;
        }
        Status status = new Status(good, version, release, standalone,
            rulesCurator.getRules().getVersion(), rulesCurator.getRules().getRulesSource());
        return status;
    }
}
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