drivers/optical/src/main/java/org/onosproject/driver/optical/power/OplinkRoadmPowerConfig.java

/*
 * Copyright 2016-present Open Networking Foundation
 *
 * 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.driver.optical.power;

import java.util.Optional;

import com.google.common.collect.Range;
import org.onosproject.net.driver.AbstractHandlerBehaviour;
import org.onosproject.net.PortNumber;
import org.onosproject.net.behaviour.PowerConfig;

/**
 * Port Power (Gain and attenuation) implementation for Oplink 1-SLOT-8D ROADM.
 * <p>
 * An Oplink ROADM port exposes OchSignal resources.
 * Optical Power can be set at port level or channel/wavelength level (attenuation).
 */

public class OplinkRoadmPowerConfig extends AbstractHandlerBehaviour
        implements PowerConfig<Object> {

    private OplinkPowerConfigUtil oplinkUtil = new OplinkPowerConfigUtil(this);

    @Override
    public Optional<Double> getTargetPower(PortNumber port, Object component) {
        Long power = oplinkUtil.getTargetPower(port, component);
        if (power == null) {
            return Optional.empty();
        }
        return Optional.of(power.doubleValue());
    }

    @Override
    public Optional<Double> currentPower(PortNumber port, Object component) {
        Long power = oplinkUtil.getCurrentPower(port, component);
        if (power == null) {
            return Optional.empty();
        }
        return Optional.of(power.doubleValue());
    }

    @Override
    public void setTargetPower(PortNumber port, Object component, double power) {
        oplinkUtil.setTargetPower(port, component, (long) power);
    }

    @Override
    public Optional<Range<Double>> getTargetPowerRange(PortNumber port, Object component) {
        Range<Long> power = oplinkUtil.getTargetPowerRange(port, component);
        if (power == null) {
            return Optional.empty();
        }
        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
    }

    @Override
    public Optional<Range<Double>> getInputPowerRange(PortNumber port, Object component) {
        Range<Long> power = oplinkUtil.getInputPowerRange(port, component);
        if (power == null) {
            return Optional.empty();
        }
        return Optional.of(Range.closed((double) power.lowerEndpoint(), (double) power.upperEndpoint()));
    }
}