/*
 * Copyright (c) 2016, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 * WSO2 Inc. licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.wso2.carbon.device.mgt.url.printer.internal;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.osgi.framework.BundleContext;
import org.osgi.service.component.ComponentContext;
import org.wso2.carbon.core.ServerStartupObserver;
import org.wso2.carbon.device.mgt.url.printer.URLPrinterStartupHandler;
import org.wso2.carbon.utils.ConfigurationContextService;

/**
 * @scr.component name="UrlPrinterServiceComponent"
 * immediate="true"
 * @scr.reference name="config.context.service"
 * interface="org.wso2.carbon.utils.ConfigurationContextService"
 * cardinality="0..1"
 * policy="dynamic"
 * bind="setConfigurationContextService"
 * unbind="unsetConfigurationContextService"
 */
public class UrlPrinterServiceComponent {

    private static final Log log = LogFactory.getLog(UrlPrinterServiceComponent.class);

    protected void activate(ComponentContext ctx) {
        if (log.isDebugEnabled()) {
            log.debug("Activating Url printer Service Component");
        }
        try {
            BundleContext bundleContext = ctx.getBundleContext();
            bundleContext.registerService(ServerStartupObserver.class.getName(), new URLPrinterStartupHandler(), null);
            if (log.isDebugEnabled()) {
                log.debug("Url printer Service Component has been successfully activated");
            }
        } catch (Throwable e) {
            log.error("Error occurred while activating Url printer Service Component", e);
        }
    }

    protected void deactivate(ComponentContext ctx) {
        if (log.isDebugEnabled()) {
            log.debug("De-activating Url printer Service Component");
        }
    }

    protected void setConfigurationContextService(ConfigurationContextService configurationContextService) {
        if (log.isDebugEnabled()) {
            log.debug("Setting ConfigurationContextService");
        }

        UrlPrinterDataHolder.getInstance().setConfigurationContextService(configurationContextService);

    }

    protected void unsetConfigurationContextService(ConfigurationContextService configurationContextService) {
        if (log.isDebugEnabled()) {
            log.debug("Un-setting ConfigurationContextService");
        }
        UrlPrinterDataHolder.getInstance().setConfigurationContextService(null);
    }
}
