drivers/optical/src/main/java/org/onosproject/driver/optical/query/CBandLambdaQuery.java

/*
 * Copyright 2017-present 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.driver.optical.query;

import com.google.common.collect.ImmutableSet;
import org.onosproject.net.ChannelSpacing;
import org.onosproject.net.GridType;
import org.onosproject.net.OchSignal;
import org.onosproject.net.PortNumber;
import org.onosproject.net.behaviour.LambdaQuery;
import org.onosproject.net.driver.AbstractHandlerBehaviour;

import java.util.Set;
import java.util.stream.IntStream;

/**
 * Abstract C-band DWDM plan lambda query, this is a base class NOT meant to be used as driver.
 *
 * Instead, use the subclasses to access the fixed grid (25, 50 and 100 GHz) implementations.
 */
public abstract class CBandLambdaQuery extends AbstractHandlerBehaviour implements LambdaQuery {
    protected ChannelSpacing channelSpacing;
    protected int lambdaCount;
    protected int slotGranularity;

    @Override
    public Set<OchSignal> queryLambdas(PortNumber port) {
        return IntStream.range(0, lambdaCount)
                .mapToObj(x -> new OchSignal(GridType.DWDM, channelSpacing, x - (lambdaCount / 2), slotGranularity))
                .collect(ImmutableSet.toImmutableSet());
    }
}