/*
 * Copyright (c) 2015 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.opendaylight.vpnservice.nexthopmgr;

import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.controller.sal.binding.api.BindingAwareBroker;
import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ProviderContext;
import org.opendaylight.controller.sal.binding.api.BindingAwareProvider;
import org.opendaylight.vpnservice.nexthopmgr.NexthopManager;
import org.opendaylight.vpnservice.interfacemgr.interfaces.IInterfaceManager;
import org.opendaylight.vpnservice.mdsalutil.interfaces.IMdsalApiManager;
import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.idmanager.rev150403.IdManagerService;
import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.l3nexthop.rev150409.L3nexthopService;
import org.opendaylight.idmanager.IdManager;
import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class NexthopmgrProvider implements BindingAwareProvider, AutoCloseable {

    private static final Logger LOG = LoggerFactory.getLogger(NexthopmgrProvider.class);
    private VpnInterfaceChangeListener vpnIfListener;
    private OdlInterfaceChangeListener odlIfListener;
    private NexthopManager nhManager;
    private IMdsalApiManager mdsalManager;
    private IInterfaceManager interfaceManager;
    private IdManagerService idManager;
    private RpcProviderRegistry rpcProviderRegistry;

    public RpcProviderRegistry getRpcProviderRegistry() {
        return rpcProviderRegistry;
    }

    public void setRpcProviderRegistry(RpcProviderRegistry rpcProviderRegistry) {
        this.rpcProviderRegistry = rpcProviderRegistry;
    }

    @Override
    public void onSessionInitiated(ProviderContext session) {
        try {
        final  DataBroker dbx = session.getSALService(DataBroker.class);
        nhManager = new NexthopManager(dbx);
        vpnIfListener = new VpnInterfaceChangeListener(dbx, nhManager);
        odlIfListener = new OdlInterfaceChangeListener(dbx, nhManager, interfaceManager);
        idManager = rpcProviderRegistry.getRpcService(IdManagerService.class);
        final BindingAwareBroker.RpcRegistration<L3nexthopService> rpcRegistration = getRpcProviderRegistry().addRpcImplementation(L3nexthopService.class, nhManager);
        nhManager.setMdsalManager(mdsalManager);
        nhManager.setInterfaceManager(interfaceManager);
        nhManager.setIdManager(idManager);
        nhManager.createNexthopPointerPool();
        LOG.info("NexthopmgrProvider Session Initiated");
        }
        catch (Exception e)
        {
            LOG.error("Error initializing services", e);
        }
    }

    public void setMdsalManager(IMdsalApiManager mdsalManager) {
        this.mdsalManager = mdsalManager;
    }

    public void setInterfaceManager(IInterfaceManager interfaceManager) {
        this.interfaceManager = interfaceManager;
    }

    public NexthopmgrProvider(RpcProviderRegistry rpcRegistry) {
        this.rpcProviderRegistry = rpcRegistry;
    }

    @Override
    public void close() throws Exception {
        vpnIfListener.close();
        odlIfListener.close();
        nhManager.close();
        LOG.info("NexthopmgrProvider Closed");
    }

}