GlobalInstanceHolder.java

/*
 * Copyright (c) 2020 SUSE LLC
 *
 * 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 com.redhat.rhn;

import com.redhat.rhn.common.security.acl.Access;
import com.redhat.rhn.common.security.acl.AclFactory;
import com.redhat.rhn.domain.server.ServerFactory;
import com.redhat.rhn.domain.server.ServerGroupFactory;
import com.redhat.rhn.frontend.taglibs.helpers.RenderUtils;
import com.redhat.rhn.manager.formula.FormulaManager;
import com.redhat.rhn.manager.formula.FormulaMonitoringManager;
import com.redhat.rhn.manager.org.MigrationManager;
import com.redhat.rhn.manager.system.ServerGroupManager;
import com.redhat.rhn.manager.system.SystemManager;
import com.redhat.rhn.manager.system.entitling.SystemEntitlementManager;
import com.redhat.rhn.manager.system.entitling.SystemEntitler;
import com.redhat.rhn.manager.system.entitling.SystemUnentitler;

import com.suse.cloud.CloudPaygManager;
import com.suse.manager.attestation.AttestationManager;
import com.suse.manager.kubernetes.KubernetesManager;
import com.suse.manager.utils.SaltKeyUtils;
import com.suse.manager.utils.SaltUtils;
import com.suse.manager.webui.controllers.bootstrap.RegularMinionBootstrapper;
import com.suse.manager.webui.controllers.bootstrap.SSHMinionBootstrapper;
import com.suse.manager.webui.menu.MenuTree;
import com.suse.manager.webui.services.SaltServerActionService;
import com.suse.manager.webui.services.ThrottlingService;
import com.suse.manager.webui.services.iface.MonitoringManager;
import com.suse.manager.webui.services.iface.SaltApi;
import com.suse.manager.webui.services.iface.SystemQuery;
import com.suse.manager.webui.services.impl.SaltService;
import com.suse.manager.webui.utils.MinionActionUtils;
import com.suse.manager.webui.utils.UserPreferenceUtils;
import com.suse.manager.webui.utils.ViewHelper;
import com.suse.manager.webui.websocket.WebsocketHeartbeatService;

/**
 * This class only exists to have a single place for initializing objects
 * and share a single consistent instance in multiple parts of tomcat/taskomatic.
 * These instances should only be referenced from entry points of the program and
 * places that cant receive them otherwise though the constructor (i.e because of reflection)
 */
public class GlobalInstanceHolder {

    private GlobalInstanceHolder() {
    }

    private static final SaltService SALT_SERVICE = new SaltService();
    public static final SystemQuery SYSTEM_QUERY = SALT_SERVICE;
    public static final SaltApi SALT_API = SALT_SERVICE;
    public static final CloudPaygManager PAYG_MANAGER = new CloudPaygManager();
    public static final AttestationManager ATTESTATION_MANAGER = new AttestationManager();
    public static final ServerGroupManager SERVER_GROUP_MANAGER = new ServerGroupManager(SALT_API);
    public static final FormulaManager FORMULA_MANAGER = new FormulaManager(SALT_API);
    public static final SaltUtils SALT_UTILS = new SaltUtils(SYSTEM_QUERY, SALT_API);
    public static final SaltKeyUtils SALT_KEY_UTILS = new SaltKeyUtils(SALT_API);
    public static final SaltServerActionService SALT_SERVER_ACTION_SERVICE = new SaltServerActionService(
            SALT_API, SALT_UTILS, SALT_KEY_UTILS);
    public static final Access ACCESS = new Access();
    public static final AclFactory ACL_FACTORY = new AclFactory(ACCESS);
    // Referenced from JSP
    public static final MenuTree MENU_TREE = new MenuTree(ACL_FACTORY);
    public static final UserPreferenceUtils USER_PREFERENCE_UTILS = new UserPreferenceUtils(ACL_FACTORY);
    public static final RenderUtils RENDER_UTILS = new RenderUtils(ACL_FACTORY);
    public static final MinionActionUtils MINION_ACTION_UTILS = new MinionActionUtils(SALT_API, SALT_UTILS);
    public static final KubernetesManager KUBERNETES_MANAGER = new KubernetesManager(SALT_API);
    public static final RegularMinionBootstrapper REGULAR_MINION_BOOTSTRAPPER =
            new RegularMinionBootstrapper(SYSTEM_QUERY, SALT_API, PAYG_MANAGER, ATTESTATION_MANAGER);
    public static final SSHMinionBootstrapper SSH_MINION_BOOTSTRAPPER =
            new SSHMinionBootstrapper(SYSTEM_QUERY, SALT_API, PAYG_MANAGER, ATTESTATION_MANAGER);
    public static final MonitoringManager MONITORING_MANAGER = new FormulaMonitoringManager(SALT_API);
    public static final SystemEntitlementManager SYSTEM_ENTITLEMENT_MANAGER = new SystemEntitlementManager(
            new SystemUnentitler(MONITORING_MANAGER, SERVER_GROUP_MANAGER),
            new SystemEntitler(SALT_API, MONITORING_MANAGER,
                    SERVER_GROUP_MANAGER)
    );
    public static final SystemManager SYSTEM_MANAGER = new SystemManager(ServerFactory.SINGLETON,
            ServerGroupFactory.SINGLETON, SALT_API);
    public static final MigrationManager MIGRATION_MANAGER = new MigrationManager(SERVER_GROUP_MANAGER);
    public static final WebsocketHeartbeatService WEBSOCKET_SESSION_MANAGER = new WebsocketHeartbeatService();

    public static final ViewHelper VIEW_HELPER = ViewHelper.getInstance();
    public static final ThrottlingService THROTTLING_SERVICE = new ThrottlingService();
}