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/*
* Copyright 2014-2015 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.net.resource.link;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
import java.util.Objects;
import org.onlab.util.Bandwidth;
import org.onosproject.net.Link;
import org.onosproject.net.intent.Constraint;
import org.onosproject.net.intent.IntentId;
import com.google.common.collect.ImmutableSet;
import org.onosproject.net.intent.constraint.BandwidthConstraint;
import org.onosproject.net.intent.constraint.LambdaConstraint;
import org.onosproject.net.resource.ResourceRequest;
import org.onosproject.net.resource.ResourceType;
/**
* Implementation of {@link LinkResourceRequest}.
*/
public final class DefaultLinkResourceRequest implements LinkResourceRequest {
private final IntentId intentId;
private final Collection<Link> links;
private final Set<ResourceRequest> resources;
/**
* Creates a new link resource request with the given ID, links, and
* resource requests.
*
* @param intentId intent ID related to this request
* @param links a set of links for the request
* @param resources a set of resources to be requested
*/
private DefaultLinkResourceRequest(IntentId intentId,
Collection<Link> links,
Set<ResourceRequest> resources) {
this.intentId = intentId;
this.links = ImmutableSet.copyOf(links);
this.resources = ImmutableSet.copyOf(resources);
}
@Override
public ResourceType type() {
return null;
}
@Override
public IntentId intentId() {
return intentId;
}
@Override
public Collection<Link> links() {
return links;
}
@Override
public Set<ResourceRequest> resources() {
return resources;
}
/**
* Returns builder of link resource request.
*
* @param intentId intent ID related to this request
* @param links a set of links for the request
* @return builder of link resource request
*/
public static LinkResourceRequest.Builder builder(
IntentId intentId, Collection<Link> links) {
return new Builder(intentId, links);
}
/**
* Builder of link resource request.
*/
public static final class Builder implements LinkResourceRequest.Builder {
private IntentId intentId;
private Collection<Link> links;
private Set<ResourceRequest> resources;
/**
* Creates a new link resource request.
*
* @param intentId intent ID related to this request
* @param links a set of links for the request
*/
private Builder(IntentId intentId, Collection<Link> links) {
this.intentId = intentId;
this.links = links;
this.resources = new HashSet<>();
}
/**
* Adds lambda request.
*
* @return self
*/
@Override
public Builder addLambdaRequest() {
resources.add(new LambdaResourceRequest());
return this;
}
/**
* Adds Mpls request.
*
* @return self
*/
@Override
public Builder addMplsRequest() {
resources.add(new MplsLabelResourceRequest());
return this;
}
/**
* Adds bandwidth request with bandwidth value.
*
* @param bandwidth bandwidth value in bits per second to be requested
* @return self
*/
@Override
public Builder addBandwidthRequest(double bandwidth) {
resources.add(new BandwidthResourceRequest(new BandwidthResource(Bandwidth.bps(bandwidth))));
return this;
}
@Override
public LinkResourceRequest.Builder addConstraint(Constraint constraint) {
if (constraint instanceof LambdaConstraint) {
return addLambdaRequest();
} else if (constraint instanceof BandwidthConstraint) {
BandwidthConstraint bw = (BandwidthConstraint) constraint;
return addBandwidthRequest(bw.bandwidth().toDouble());
}
return this;
}
/**
* Returns link resource request.
*
* @return link resource request
*/
@Override
public LinkResourceRequest build() {
return new DefaultLinkResourceRequest(intentId, links, resources);
}
}
@Override
public int hashCode() {
return Objects.hash(intentId, links);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
final DefaultLinkResourceRequest other = (DefaultLinkResourceRequest) obj;
return Objects.equals(this.intentId, other.intentId)
&& Objects.equals(this.links, other.links);
}
}
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