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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.net.meter;
import com.google.common.collect.ImmutableSet;
import org.onosproject.core.ApplicationId;
import org.onosproject.net.DeviceId;
import java.util.Collection;
import java.util.Optional;
import static com.google.common.base.MoreObjects.toStringHelper;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* A default implementation of a meter.
*/
public final class DefaultMeterRequest implements MeterRequest {
private final ApplicationId appId;
private final Meter.Unit unit;
private final boolean burst;
private final Collection<Band> bands;
private final DeviceId deviceId;
private final Optional<MeterContext> context;
private final Type op;
private DefaultMeterRequest(DeviceId deviceId, ApplicationId appId,
Meter.Unit unit, boolean burst,
Collection<Band> bands, MeterContext context,
Type op) {
this.deviceId = deviceId;
this.appId = appId;
this.unit = unit;
this.burst = burst;
this.bands = bands;
this.context = Optional.ofNullable(context);
this.op = op;
}
@Override
public DeviceId deviceId() {
return deviceId;
}
@Override
public ApplicationId appId() {
return appId;
}
@Override
public Meter.Unit unit() {
return unit;
}
@Override
public boolean isBurst() {
return burst;
}
@Override
public Collection<Band> bands() {
return bands;
}
@Override
public Optional<MeterContext> context() {
return context;
}
public static Builder builder() {
return new Builder();
}
@Override
public String toString() {
return toStringHelper(this)
.add("device", deviceId)
.add("appId", appId.name())
.add("unit", unit)
.add("isBurst", burst)
.add("bands", bands).toString();
}
public static final class Builder implements MeterRequest.Builder {
private ApplicationId appId;
private Meter.Unit unit = Meter.Unit.KB_PER_SEC;
private boolean burst = false;
private Collection<Band> bands;
private DeviceId deviceId;
private MeterContext context;
private Optional<MeterId> desiredId = Optional.empty();
@Override
public MeterRequest.Builder forDevice(DeviceId deviceId) {
this.deviceId = deviceId;
return this;
}
@Override
public MeterRequest.Builder fromApp(ApplicationId appId) {
this.appId = appId;
return this;
}
@Override
public MeterRequest.Builder withUnit(Meter.Unit unit) {
this.unit = unit;
return this;
}
@Override
public MeterRequest.Builder burst() {
this.burst = true;
return this;
}
@Override
public MeterRequest.Builder withBands(Collection<Band> bands) {
this.bands = ImmutableSet.copyOf(bands);
return this;
}
@Override
public MeterRequest.Builder withContext(MeterContext context) {
this.context = context;
return this;
}
@Override
public MeterRequest add() {
validate();
return new DefaultMeterRequest(deviceId, appId, unit, burst, bands,
context, Type.ADD);
}
@Override
public MeterRequest remove() {
validate();
return new DefaultMeterRequest(deviceId, appId, unit, burst, bands,
context, Type.REMOVE);
}
private void validate() {
checkNotNull(deviceId, "Must specify a device");
checkNotNull(bands, "Must have bands.");
checkArgument(bands.size() > 0, "Must have at least one band.");
checkNotNull(appId, "Must have an application id");
}
}
}
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