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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2013 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
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 * GPL Classpath Exception:
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 *
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 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

// Portions Copyright [2016] [Payara Foundation and/or its affiliates]]

package org.glassfish.concurrent.runtime.deployer;


import com.sun.enterprise.config.serverbeans.Application;
import com.sun.enterprise.config.serverbeans.Resource;
import com.sun.enterprise.config.serverbeans.Resources;
import fish.payara.concurrent.monitoring.ManagedScheduledExecutorServiceStatsProvider;
import org.glassfish.api.logging.LogHelper;
import org.glassfish.concurrent.LogFacade;
import org.glassfish.concurrent.config.ManagedScheduledExecutorService;
import org.glassfish.concurrent.runtime.ConcurrentRuntime;
import org.glassfish.resourcebase.resources.api.ResourceConflictException;
import org.glassfish.resourcebase.resources.api.ResourceDeployer;
import org.glassfish.resourcebase.resources.api.ResourceDeployerInfo;
import org.glassfish.resourcebase.resources.api.ResourceInfo;
import org.glassfish.resourcebase.resources.naming.ResourceNamingService;
import org.glassfish.resourcebase.resources.util.ResourceUtil;
import org.glassfish.resources.naming.SerializableObjectRefAddr;
import org.jvnet.hk2.annotations.Service;

import javax.inject.Inject;
import javax.inject.Singleton;
import javax.naming.NamingException;
import javax.naming.RefAddr;
import java.util.Collection;
import java.util.logging.Level;
import java.util.logging.Logger;

@Service
@ResourceDeployerInfo(ManagedScheduledExecutorService.class)
@Singleton
public class ManagedScheduledExecutorServiceDeployer implements ResourceDeployer {

    @Inject
    private ResourceNamingService namingService;

    @Inject
    ConcurrentRuntime concurrentRuntime;
    
    // Monitoring provider
    private ManagedScheduledExecutorServiceStatsProvider managedScheduledExecutorServiceProbeListener;

    // logger for this deployer
    private static Logger _logger = LogFacade.getLogger();

    @Override
    public void deployResource(Object resource, String applicationName, String moduleName) throws Exception {
        ManagedScheduledExecutorService managedScheduledExecutorServiceRes = (ManagedScheduledExecutorService) resource;

        if (managedScheduledExecutorServiceRes == null) {
            _logger.log(Level.WARNING, LogFacade.DEPLOY_ERROR_NULL_CONFIG, "ManagedScheduledExecutorService");
            return;
        }

        String jndiName = managedScheduledExecutorServiceRes.getJndiName();

        if(_logger.isLoggable(Level.FINE)) {
            _logger.log(Level.FINE, "ManagedScheduledExecutorServiceDeployer.deployResource() : jndi-name ["+jndiName+"]");
        }


        ResourceInfo resourceInfo = new ResourceInfo(managedScheduledExecutorServiceRes.getJndiName(), applicationName, moduleName);
        ManagedScheduledExecutorServiceConfig config = new ManagedScheduledExecutorServiceConfig(managedScheduledExecutorServiceRes);

        javax.naming.Reference ref= new  javax.naming.Reference(
                javax.enterprise.concurrent.ManagedScheduledExecutorService.class.getName(),
                "org.glassfish.concurrent.runtime.deployer.ConcurrentObjectFactory",
                null);
        RefAddr addr = new SerializableObjectRefAddr(ManagedScheduledExecutorServiceConfig.class.getName(), config);
        ref.add(addr);
        RefAddr resAddr = new SerializableObjectRefAddr(ResourceInfo.class.getName(), resourceInfo);
        ref.add(resAddr);

        try {
            // Publish the object ref
            namingService.publishObject(resourceInfo, ref, true);
        } catch (NamingException ex) {
            LogHelper.log(_logger, Level.SEVERE, LogFacade.UNABLE_TO_BIND_OBJECT, ex, "ManagedScheduledExecutorService", jndiName);
        }
        
        registerMonitorableComponent(managedScheduledExecutorServiceRes);
    }

    @Override
    public void deployResource(Object resource) throws Exception {
        ManagedScheduledExecutorService ManagedScheduledExecutorServiceResource =
                (ManagedScheduledExecutorService) resource;
        ResourceInfo resourceInfo = ResourceUtil.getResourceInfo(ManagedScheduledExecutorServiceResource);
        deployResource(resource, resourceInfo.getApplicationName(), resourceInfo.getModuleName());
    }

    @Override
    public void undeployResource(Object resource) throws Exception {
        ManagedScheduledExecutorService ManagedScheduledExecutorServiceResource =
                (ManagedScheduledExecutorService) resource;
        ResourceInfo resourceInfo = ResourceUtil.getResourceInfo(ManagedScheduledExecutorServiceResource);
        undeployResource(resource, resourceInfo.getApplicationName(), resourceInfo.getModuleName());
    }

    @Override
    public void undeployResource(Object resource, String applicationName, String moduleName) throws Exception {
        ManagedScheduledExecutorService managedscheduledexecutorserviceRes = (ManagedScheduledExecutorService) resource;
        ResourceInfo resourceInfo = new ResourceInfo(managedscheduledexecutorserviceRes.getJndiName(), applicationName, moduleName);
        namingService.unpublishObject(resourceInfo, managedscheduledexecutorserviceRes.getJndiName());
        // stop the runtime object
        concurrentRuntime.shutdownScheduledManagedExecutorService(managedscheduledexecutorserviceRes.getJndiName());
    }

    @Override
    public void redeployResource(Object resource) throws Exception {
        undeployResource(resource);
        deployResource(resource);
    }

    @Override
    public void enableResource(Object resource) throws Exception {
        deployResource(resource);
    }

    @Override
    public void disableResource(Object resource) throws Exception {
        undeployResource(resource);
    }

    @Override
    public boolean handles(Object resource) {
        return resource instanceof ManagedScheduledExecutorService;
    }

    @Override
    public boolean supportsDynamicReconfiguration() {
        return false;
    }

    @Override
    public Class[] getProxyClassesForDynamicReconfiguration() {
        return new Class[0];
    }

    @Override
    public boolean canDeploy(boolean postApplicationDeployment, Collection allResources, Resource resource) {
        if (handles(resource)) {
            if (!postApplicationDeployment) {
                return true;
            }
        }
        return false;
    }

    @Override
    public void validatePreservedResource(Application oldApp, Application newApp, Resource resource, Resources allResources) throws ResourceConflictException {
        // do nothing
    }
    
    /**
     * Registers a ManagedScheduledExecutorService for monitoring.
     * @param managedScheduledExecutorService The ManagedScheduledExecutorService to register for monitoring.
     */
    private void registerMonitorableComponent(ManagedScheduledExecutorService managedScheduledExecutorService) {
        managedScheduledExecutorServiceProbeListener = 
                new ManagedScheduledExecutorServiceStatsProvider(managedScheduledExecutorService);
        
        managedScheduledExecutorServiceProbeListener.register();
    }
    
    /**
     * Unregisters a ManagedScheduledExecutorService defined by the 
     * managedScheduledExecutorServiceProbeListener from the monitoring tree.
     */
    private void unregisterMonitableComponent() {
        managedScheduledExecutorServiceProbeListener.unregister();
    }
}