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/*
 * Copyright (C) 2012-2022 52°North Spatial Information Research GmbH
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 *
 * If the program is linked with libraries which are licensed under one of
 * the following licenses, the combination of the program with the linked
 * library is not considered a "derivative work" of the program:
 *
 *     - Apache License, version 2.0
 *     - Apache Software License, version 1.0
 *     - GNU Lesser General Public License, version 3
 *     - Mozilla Public License, versions 1.0, 1.1 and 2.0
 *     - Common Development and Distribution License (CDDL), version 1.0
 *
 * Therefore the distribution of the program linked with libraries licensed
 * under the aforementioned licenses, is permitted by the copyright holders
 * if the distribution is compliant with both the GNU General Public
 * License version 2 and the aforementioned licenses.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
 * Public License for more details.
 */
package org.n52.sos.web.admin;

import javax.inject.Inject;

import org.n52.iceland.cache.ContentCacheController;
import org.n52.shetland.ogc.ows.exception.OwsExceptionReport;
import org.n52.sos.cache.SosContentCache;
import org.n52.sos.web.common.AbstractController;

/**
 * @since 4.0.0
 *
 */
public abstract class AbstractAdminController extends AbstractController {

    private ContentCacheController contentCacheController;

    @Inject
    public void setContentCacheController(ContentCacheController ctrl) {
        this.contentCacheController = ctrl;
    }

    protected boolean cacheIsLoading() {
        return contentCacheController.isUpdateInProgress();
    }

    protected void updateCache()
            throws OwsExceptionReport {
        //don't wait for cache update to complete since it can take much longer than browser timeouts.
        //instead, start it and then check loading status from the client using cacheIsLoading().
        new Thread(() -> {
            try {
                contentCacheController.update();
            } catch (OwsExceptionReport e) {
                //NOOP
                //TODO should the last cache loading error be stored and accessible to the client?
            }
        }).start();
    }

    public ContentCacheController getContentCacheController() {
        return contentCacheController;
    }

    protected SosContentCache getCache() {
        return (SosContentCache) this.contentCacheController.getCache();
    }

}