incubator/net/src/main/java/org/onosproject/incubator/net/meter/impl/MeterManager.java

/*
 * Copyright 2015 Open Networking Laboratory
 *
 * Licensed 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.onosproject.incubator.net.meter.impl;

import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.ReferenceCardinality;
import org.apache.felix.scr.annotations.Service;
import org.onosproject.incubator.net.meter.Meter;
import org.onosproject.incubator.net.meter.MeterEvent;
import org.onosproject.incubator.net.meter.MeterFailReason;
import org.onosproject.incubator.net.meter.MeterId;
import org.onosproject.incubator.net.meter.MeterListener;
import org.onosproject.incubator.net.meter.MeterOperation;
import org.onosproject.incubator.net.meter.MeterProvider;
import org.onosproject.incubator.net.meter.MeterProviderRegistry;
import org.onosproject.incubator.net.meter.MeterProviderService;
import org.onosproject.incubator.net.meter.MeterService;
import org.onosproject.incubator.net.meter.MeterStoreDelegate;
import org.onosproject.net.DeviceId;
import org.onosproject.net.provider.AbstractListenerProviderRegistry;
import org.onosproject.net.provider.AbstractProviderService;
import org.onosproject.store.service.AtomicCounter;
import org.onosproject.store.service.StorageService;
import org.slf4j.Logger;

import java.util.Collection;

import static org.slf4j.LoggerFactory.getLogger;


/**
 * Provides implementation of the meter service APIs.
 */
@Component(immediate = true)
@Service
public class MeterManager extends AbstractListenerProviderRegistry<MeterEvent, MeterListener,
        MeterProvider, MeterProviderService>
        implements MeterService, MeterProviderRegistry {

    private final String meterIdentifier = "meter-id-counter";
    private final Logger log = getLogger(getClass());
    private final MeterStoreDelegate delegate = new InternalMeterStoreDelegate();

    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
    protected StorageService storageService;

    private AtomicCounter meterIdCounter;

    @Activate
    public void activate() {
        meterIdCounter = storageService.atomicCounterBuilder()
                .withName(meterIdentifier)
                .build();
        log.info("Started");
    }

    @Deactivate
    public void deactivate() {
        log.info("Stopped");
    }

    @Override
    protected MeterProviderService createProviderService(MeterProvider provider) {
        return new InternalMeterProviderService(provider);
    }

    @Override
    public void addMeter(Meter meter) {

    }

    @Override
    public void updateMeter(Meter meter) {

    }

    @Override
    public void removeMeter(Meter meter) {

    }

    @Override
    public void removeMeter(MeterId id) {

    }

    @Override
    public Meter getMeter(MeterId id) {
        return null;
    }

    @Override
    public MeterId allocateMeterId() {
        // FIXME: This will break one day.
        return MeterId.meterId((int) meterIdCounter.getAndIncrement());
    }

    private class InternalMeterProviderService
            extends AbstractProviderService<MeterProvider>
            implements MeterProviderService {

        /**
         * Creates a provider service on behalf of the specified provider.
         *
         * @param provider provider to which this service is being issued
         */
        protected InternalMeterProviderService(MeterProvider provider) {
            super(provider);
        }

        @Override
        public void meterOperationFailed(MeterOperation operation, MeterFailReason reason) {

        }

        @Override
        public void pushMeterMetrics(DeviceId deviceId, Collection<Meter> meterEntries) {

        }
    }

    private class InternalMeterStoreDelegate implements MeterStoreDelegate {

        @Override
        public void notify(MeterEvent event) {

        }
    }

}