DefaultSingleTablePipeline.java
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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.driver.pipeline;
import com.google.common.util.concurrent.SettableFuture;
import org.onlab.osgi.ServiceDirectory;
import org.onosproject.core.DefaultGroupId;
import org.onosproject.net.DeviceId;
import org.onosproject.net.behaviour.Pipeliner;
import org.onosproject.net.behaviour.PipelinerContext;
import org.onosproject.net.driver.AbstractBehaviour;
import org.onosproject.net.flow.DefaultFlowRule;
import org.onosproject.net.flow.FlowRule;
import org.onosproject.net.flow.FlowRuleOperations;
import org.onosproject.net.flow.FlowRuleOperationsContext;
import org.onosproject.net.flow.FlowRuleService;
import org.onosproject.net.flow.TrafficSelector;
import org.onosproject.net.flowobjective.FilteringObjective;
import org.onosproject.net.flowobjective.ForwardingObjective;
import org.onosproject.net.flowobjective.NextObjective;
import org.slf4j.Logger;
import java.util.Collection;
import java.util.concurrent.Future;
import static org.slf4j.LoggerFactory.getLogger;
/**
* Simple single table pipeline abstraction.
*/
public class DefaultSingleTablePipeline extends AbstractBehaviour implements Pipeliner {
private final Logger log = getLogger(getClass());
private ServiceDirectory serviceDirectory;
private FlowRuleService flowRuleService;
private DeviceId deviceId;
@Override
public void init(DeviceId deviceId, PipelinerContext context) {
this.serviceDirectory = context.directory();
this.deviceId = deviceId;
flowRuleService = serviceDirectory.get(FlowRuleService.class);
}
@Override
public Future<Boolean> filter(Collection<FilteringObjective> filters) {
throw new UnsupportedOperationException("Single table does not filter.");
}
@Override
public Future<Boolean> forward(Collection<ForwardingObjective> forwardings) {
FlowRuleOperations.Builder flowBuilder = FlowRuleOperations.builder();
forwardings.forEach(fwd -> {
if (fwd.flag() != ForwardingObjective.Flag.VERSATILE) {
throw new UnsupportedOperationException(
"Only VERSATILE is supported.");
}
TrafficSelector selector = fwd.selector();
FlowRule rule = new DefaultFlowRule(deviceId, selector,
fwd.treatment(),
fwd.priority(), fwd.appId(),
new DefaultGroupId(fwd.id()),
fwd.timeout(), fwd.permanent());
switch (fwd.op()) {
case ADD:
flowBuilder.add(rule);
break;
case REMOVE:
flowBuilder.remove(rule);
break;
default:
log.warn("Unknown operation {}", fwd.op());
}
});
SettableFuture<Boolean> future = SettableFuture.create();
flowRuleService.apply(flowBuilder.build(new FlowRuleOperationsContext() {
@Override
public void onSuccess(FlowRuleOperations ops) {
future.set(true);
}
@Override
public void onError(FlowRuleOperations ops) {
future.set(false);
}
}));
return future;
}
@Override
public Future<Boolean> next(Collection<NextObjective> nextObjectives) {
throw new UnsupportedOperationException("Single table does not next hop.");
}
}