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/*
* 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.segmentrouting;
import org.onosproject.net.flow.TrafficSelector;
import org.onosproject.net.flowobjective.DefaultForwardingObjective;
import org.onosproject.net.flowobjective.ForwardingObjective;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Tunnel Policy.
*/
public final class TunnelPolicy implements Policy {
private final SegmentRoutingManager srManager;
private final Type type;
private final String id;
private final TrafficSelector selector;
private final int priority;
private final String tunnelId;
private TunnelPolicy(SegmentRoutingManager srm, String policyId, Type type,
TrafficSelector selector, int priority, String tunnelId) {
this.srManager = srm;
this.id = checkNotNull(policyId);
this.type = type;
this.tunnelId = tunnelId;
this.priority = priority;
this.selector = selector;
}
/**
* Creates a TunnelPolicy reference.
*
* @param p TunnelPolicy reference
*/
public TunnelPolicy(TunnelPolicy p) {
this.srManager = p.srManager;
this.id = p.id;
this.type = p.type;
this.tunnelId = p.tunnelId;
this.priority = p.priority;
this.selector = p.selector;
}
/**
* Creates a TunnelPolicy reference.
*
* @param p TunnelPolicy reference
*/
public TunnelPolicy(SegmentRoutingManager srm, TunnelPolicy p) {
this.srManager = srm;
this.id = p.id;
this.type = p.type;
this.tunnelId = p.tunnelId;
this.priority = p.priority;
this.selector = p.selector;
}
/**
* Returns the TunnelPolicy builder reference.
*
* @return TunnelPolicy builder
*/
public static TunnelPolicy.Builder builder() {
return new Builder();
}
@Override
public String id() {
return this.id;
}
@Override
public TrafficSelector selector() {
return selector;
}
@Override
public int priority() {
return priority;
}
@Override
public Type type() {
return type;
}
@Override
public boolean create() {
Tunnel tunnel = srManager.getTunnel(tunnelId);
ForwardingObjective.Builder fwdBuilder = DefaultForwardingObjective
.builder()
.fromApp(srManager.appId)
.makePermanent()
.nextStep(tunnel.groupId())
.withPriority(priority)
.withSelector(selector)
.withFlag(ForwardingObjective.Flag.VERSATILE);
srManager.flowObjectiveService.forward(tunnel.source(), fwdBuilder.add());
return true;
}
@Override
public boolean remove() {
Tunnel tunnel = srManager.getTunnel(tunnelId);
ForwardingObjective.Builder fwdBuilder = DefaultForwardingObjective
.builder()
.fromApp(srManager.appId)
.makePermanent()
.withSelector(selector)
.withPriority(priority)
.nextStep(tunnel.groupId())
.withFlag(ForwardingObjective.Flag.VERSATILE);
srManager.flowObjectiveService.forward(tunnel.source(), fwdBuilder.remove());
return true;
}
/**
* Returns the tunnel ID of the policy.
*
* @return Tunnel ID
*/
public String tunnelId() {
return this.tunnelId;
}
/**
* Tunnel Policy Builder.
*/
public static final class Builder {
private SegmentRoutingManager srManager;
private String id;
private Type type;
private TrafficSelector selector;
private int priority;
private String tunnelId;
/**
* Sets the policy Id.
*
* @param id policy Id
* @return Builder object
*/
public Builder setPolicyId(String id) {
this.id = id;
return this;
}
/**
* Sets the policy type.
*
* @param type policy type
* @return Builder object
*/
public Builder setType(Type type) {
this.type = type;
return this;
}
/**
* Sets the TrafficSelector.
*
* @param selector TrafficSelector
* @return Builder object
*/
public Builder setSelector(TrafficSelector selector) {
this.selector = selector;
return this;
}
/**
* Sets the priority of the policy.
*
* @param p priority
* @return Builder object
*/
public Builder setPriority(int p) {
this.priority = p;
return this;
}
/**
* Sets the tunnel Id.
*
* @param tunnelId tunnel Id
* @return Builder object
*/
public Builder setTunnelId(String tunnelId) {
this.tunnelId = tunnelId;
return this;
}
/**
* Sets the Segment Routing Manager reference.
*
* @param srm Segment Routing Manager reference
* @return Builder object
*/
public Builder setManager(SegmentRoutingManager srm) {
this.srManager = srm;
return this;
}
/**
* Builds the policy.
*
* @return Tunnel Policy reference
*/
public Policy build() {
return new TunnelPolicy(srManager, id, type, selector, priority, tunnelId);
}
}
}