OpenFlow Meter Provider - still need to parse meter stats
Change-Id: I4b313ea003b3801f81ec7d4823bf69de37fd8643
diff --git a/core/api/src/main/java/org/onosproject/net/meter/Band.java b/core/api/src/main/java/org/onosproject/net/meter/Band.java
index e434073..db42ba7 100644
--- a/core/api/src/main/java/org/onosproject/net/meter/Band.java
+++ b/core/api/src/main/java/org/onosproject/net/meter/Band.java
@@ -32,7 +32,7 @@
/**
* defines a simple DiffServ policer that remark
- * the drop precedence of the DSCP eld in the
+ * the drop precedence of the DSCP field in the
* IP header of the packets that exceed the band
* rate value.
*/
@@ -42,16 +42,32 @@
/**
* The rate at which this meter applies.
*
- * @return the integer value of the rate
+ * @return the long value of the rate
*/
- int rate();
+ long rate();
/**
* The burst size at which the meter applies.
*
- * @return the integer value of the size
+ * @return the long value of the size
*/
- int burst();
+ long burst();
+
+ /**
+ * Only meaningful in the case of a REMARK band type.
+ * indicates by which amount the drop precedence of
+ * the packet should be increase if the band is exceeded.
+ *
+ * @return a short value
+ */
+ short dropPrecedence();
+
+ /**
+ * Signals the type of band to create.
+ *
+ * @return a band type
+ */
+ Type type();
}
diff --git a/core/api/src/main/java/org/onosproject/net/meter/MeterFailReason.java b/core/api/src/main/java/org/onosproject/net/meter/MeterFailReason.java
index 70f65ef..8683e2a 100644
--- a/core/api/src/main/java/org/onosproject/net/meter/MeterFailReason.java
+++ b/core/api/src/main/java/org/onosproject/net/meter/MeterFailReason.java
@@ -38,5 +38,52 @@
/**
* The meter that was attempted to be modified is unknown.
*/
- UNKNOWN
+ UNKNOWN,
+
+ /**
+ * The operation for this meter installation timed out.
+ */
+ TIMEOUT,
+
+ /**
+ * Invalid meter definition.
+ */
+ INVALID_METER,
+
+ /**
+ * The target device is unknown.
+ */
+ UNKNOWN_DEVICE,
+
+ /**
+ * Unknown command.
+ */
+ UNKNOWN_COMMAND,
+
+ /**
+ * Unknown flags.
+ */
+ UNKNOWN_FLAGS,
+
+ /**
+ * Bad rate value.
+ */
+ BAD_RATE,
+
+ /**
+ * Bad burst size value.
+ */
+ BAD_BURST,
+
+ /**
+ * Bad band.
+ */
+ BAD_BAND,
+
+ /**
+ * Bad value value.
+ */
+ BAD_BAND_VALUE
+
+
}
diff --git a/core/api/src/main/java/org/onosproject/net/meter/MeterId.java b/core/api/src/main/java/org/onosproject/net/meter/MeterId.java
index b62db10..6a85a99 100644
--- a/core/api/src/main/java/org/onosproject/net/meter/MeterId.java
+++ b/core/api/src/main/java/org/onosproject/net/meter/MeterId.java
@@ -41,7 +41,7 @@
*
* @return an integer
*/
- int id() {
+ public int id() {
return id;
}
diff --git a/core/api/src/main/java/org/onosproject/net/meter/MeterProviderService.java b/core/api/src/main/java/org/onosproject/net/meter/MeterProviderService.java
index 831c88a..85c0c43 100644
--- a/core/api/src/main/java/org/onosproject/net/meter/MeterProviderService.java
+++ b/core/api/src/main/java/org/onosproject/net/meter/MeterProviderService.java
@@ -29,10 +29,10 @@
/**
* Notifies the core that a meter operaton failed for a
* specific reason.
- * @param deviceId
- * @param operation
+ * @param operation the failed operation
+ * @param reason the failure reason
*/
- void meterOperationFailed(DeviceId deviceId, MeterOperation operation,
+ void meterOperationFailed(MeterOperation operation,
MeterFailReason reason);
/**
diff --git a/providers/openflow/app/app.xml b/providers/openflow/app/app.xml
index 2604cd6..e54d1a8 100644
--- a/providers/openflow/app/app.xml
+++ b/providers/openflow/app/app.xml
@@ -29,4 +29,5 @@
<artifact>mvn:${project.groupId}/onos-of-provider-packet/${project.version}</artifact>
<artifact>mvn:${project.groupId}/onos-of-provider-flow/${project.version}</artifact>
<artifact>mvn:${project.groupId}/onos-of-provider-group/${project.version}</artifact>
+ <artifact>mvn:${project.groupId}/onos-of-provider-meter/${project.version}</artifact>
</app>
diff --git a/providers/openflow/app/features.xml b/providers/openflow/app/features.xml
index 39e5eed..7c41017 100644
--- a/providers/openflow/app/features.xml
+++ b/providers/openflow/app/features.xml
@@ -29,5 +29,6 @@
<bundle>mvn:${project.groupId}/onos-of-provider-packet/${project.version}</bundle>
<bundle>mvn:${project.groupId}/onos-of-provider-flow/${project.version}</bundle>
<bundle>mvn:${project.groupId}/onos-of-provider-group/${project.version}</bundle>
+ <bundle>mvn:${project.groupId}/onos-of-provider-meter/${project.version}</bundle>
</feature>
</features>
diff --git a/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/MeterModBuilder.java b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/MeterModBuilder.java
new file mode 100644
index 0000000..a9a3889
--- /dev/null
+++ b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/MeterModBuilder.java
@@ -0,0 +1,158 @@
+/*
+ * 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.provider.of.meter.impl;
+
+import org.onosproject.net.meter.Band;
+import org.onosproject.net.meter.Meter;
+import org.onosproject.net.meter.MeterId;
+import org.projectfloodlight.openflow.protocol.OFFactory;
+import org.projectfloodlight.openflow.protocol.OFMeterFlags;
+import org.projectfloodlight.openflow.protocol.OFMeterMod;
+import org.projectfloodlight.openflow.protocol.OFMeterModCommand;
+import org.projectfloodlight.openflow.protocol.meterband.OFMeterBand;
+import org.projectfloodlight.openflow.protocol.meterband.OFMeterBandDrop;
+import org.projectfloodlight.openflow.protocol.meterband.OFMeterBandDscpRemark;
+import org.slf4j.Logger;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Builder for a meter modification.
+ */
+public final class MeterModBuilder {
+
+ private final Logger log = getLogger(getClass());
+
+ private final long xid;
+ private final OFFactory factory;
+ private Meter.Unit unit = Meter.Unit.KB_PER_SEC;
+ private boolean burst = false;
+ private Integer id;
+ private Collection<Band> bands;
+
+ public MeterModBuilder(long xid, OFFactory factory) {
+ this.xid = xid;
+ this.factory = factory;
+ }
+
+ public static MeterModBuilder builder(long xid, OFFactory factory) {
+ return new MeterModBuilder(xid, factory);
+ }
+
+ public MeterModBuilder withRateUnit(Meter.Unit unit) {
+ this.unit = unit;
+ return this;
+ }
+
+ public MeterModBuilder burst() {
+ this.burst = true;
+ return this;
+ }
+
+ public MeterModBuilder withId(MeterId meterId) {
+ this.id = meterId.id();
+ return this;
+ }
+
+ public MeterModBuilder withBands(Collection<Band> bands) {
+ this.bands = bands;
+ return this;
+ }
+
+ public OFMeterMod add() {
+ validate();
+ OFMeterMod.Builder builder = builderMeterMod();
+ builder.setCommand(OFMeterModCommand.ADD.ordinal());
+ return builder.build();
+ }
+
+ public OFMeterMod remove() {
+ validate();
+ OFMeterMod.Builder builder = builderMeterMod();
+ builder.setCommand(OFMeterModCommand.DELETE.ordinal());
+ return builder.build();
+ }
+
+ public OFMeterMod modify() {
+ validate();
+ OFMeterMod.Builder builder = builderMeterMod();
+ builder.setCommand(OFMeterModCommand.MODIFY.ordinal());
+ return builder.build();
+ }
+
+ private OFMeterMod.Builder builderMeterMod() {
+ OFMeterMod.Builder builder = factory.buildMeterMod();
+ int flags = 0;
+ if (burst) {
+ // covering loxi short comings.
+ flags |= 1 << OFMeterFlags.BURST.ordinal();
+ }
+ switch (unit) {
+ case PKTS_PER_SEC:
+ flags |= 1 << OFMeterFlags.PKTPS.ordinal();
+ break;
+ case KB_PER_SEC:
+ flags |= 1 << OFMeterFlags.KBPS.ordinal();
+ break;
+ default:
+ log.warn("Unknown unit type {}", unit);
+ }
+ builder.setBands(buildBands());
+ builder.setFlags(flags)
+ .setMeterId(id)
+ .setXid(xid);
+ return builder;
+ }
+
+ private List<OFMeterBand> buildBands() {
+ return bands.stream().map(b -> {
+ switch (b.type()) {
+ case DROP:
+ OFMeterBandDrop.Builder dropBuilder =
+ factory.meterBands().buildDrop();
+ if (burst) {
+ dropBuilder.setBurstSize(b.burst());
+ }
+ dropBuilder.setRate(b.rate());
+ return dropBuilder.build();
+ case REMARK:
+ OFMeterBandDscpRemark.Builder remarkBand =
+ factory.meterBands().buildDscpRemark();
+ if (burst) {
+ remarkBand.setBurstSize(b.burst());
+ }
+ remarkBand.setRate(b.rate());
+ remarkBand.setPrecLevel(b.dropPrecedence());
+ return remarkBand.build();
+ default:
+ log.warn("Unknown band type {}", b.type());
+ return null;
+ }
+ }).filter(value -> value != null).collect(Collectors.toList());
+ }
+
+ private void validate() {
+ checkNotNull(id, "id cannot be null");
+ checkNotNull(bands, "Must have bands");
+ checkArgument(bands.size() > 0, "Must have at lease one band");
+ }
+}
diff --git a/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/MeterStatsCollector.java b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/MeterStatsCollector.java
new file mode 100644
index 0000000..83dc645
--- /dev/null
+++ b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/MeterStatsCollector.java
@@ -0,0 +1,103 @@
+/*
+ * 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.provider.of.meter.impl;
+
+import org.jboss.netty.util.HashedWheelTimer;
+import org.jboss.netty.util.Timeout;
+import org.jboss.netty.util.TimerTask;
+import org.onlab.util.Timer;
+import org.onosproject.openflow.controller.OpenFlowSwitch;
+import org.onosproject.openflow.controller.RoleState;
+import org.projectfloodlight.openflow.protocol.OFMeterStatsRequest;
+import org.slf4j.Logger;
+
+import java.util.concurrent.TimeUnit;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+/*
+ * Sends Meter Stats Request and collect the Meter statistics with a time interval.
+ */
+public class MeterStatsCollector implements TimerTask {
+
+ private final HashedWheelTimer timer = Timer.getTimer();
+ private final OpenFlowSwitch sw;
+ private final Logger log = getLogger(getClass());
+ private final int refreshInterval;
+
+ private Timeout timeout;
+
+ private boolean stopTimer = false;
+
+ /**
+ * Creates a GroupStatsCollector object.
+ *
+ * @param sw Open Flow switch
+ * @param interval time interval for collecting group statistic
+ */
+ public MeterStatsCollector(OpenFlowSwitch sw, int interval) {
+ this.sw = sw;
+ this.refreshInterval = interval;
+ }
+
+ @Override
+ public void run(Timeout timeout) throws Exception {
+ log.trace("Collecting stats for {}", sw.getStringId());
+
+ sendMeterStatistic();
+
+ if (!this.stopTimer) {
+ log.trace("Scheduling stats collection in {} seconds for {}",
+ this.refreshInterval, this.sw.getStringId());
+ timeout.getTimer().newTimeout(this, refreshInterval,
+ TimeUnit.SECONDS);
+ }
+ }
+
+ private void sendMeterStatistic() {
+ if (log.isTraceEnabled()) {
+ log.trace("sendMeterStatistics {}:{}", sw.getStringId(), sw.getRole());
+ }
+ if (sw.getRole() != RoleState.MASTER) {
+ return;
+ }
+
+ OFMeterStatsRequest.Builder builder =
+ sw.factory().buildMeterStatsRequest();
+ builder.setXid(0).setMeterId(0xFFFFFFFF);
+
+ sw.sendMsg(builder.build());
+
+ }
+
+ /**
+ * Starts the collector.
+ */
+ public void start() {
+ log.info("Starting Meter Stats collection thread for {}", sw.getStringId());
+ timeout = timer.newTimeout(this, 1, TimeUnit.SECONDS);
+ }
+
+ /**
+ * Stops the collector.
+ */
+ public void stop() {
+ log.info("Stopping Meter Stats collection thread for {}", sw.getStringId());
+ this.stopTimer = true;
+ timeout.cancel();
+ }
+}
diff --git a/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
index 5c9940c..4b459c5 100644
--- a/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
+++ b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
@@ -16,18 +16,45 @@
package org.onosproject.provider.of.meter.impl;
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.RemovalCause;
+import com.google.common.cache.RemovalNotification;
+import com.google.common.collect.Maps;
+import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.ReferenceCardinality;
import org.onosproject.net.DeviceId;
+import org.onosproject.net.meter.Meter;
+import org.onosproject.net.meter.MeterFailReason;
import org.onosproject.net.meter.MeterOperation;
import org.onosproject.net.meter.MeterOperations;
import org.onosproject.net.meter.MeterProvider;
+import org.onosproject.net.meter.MeterProviderRegistry;
+import org.onosproject.net.meter.MeterProviderService;
import org.onosproject.net.provider.AbstractProvider;
import org.onosproject.net.provider.ProviderId;
+import org.onosproject.openflow.controller.Dpid;
import org.onosproject.openflow.controller.OpenFlowController;
+import org.onosproject.openflow.controller.OpenFlowEventListener;
+import org.onosproject.openflow.controller.OpenFlowSwitch;
+import org.onosproject.openflow.controller.OpenFlowSwitchListener;
+import org.onosproject.openflow.controller.RoleState;
+import org.projectfloodlight.openflow.protocol.OFErrorMsg;
+import org.projectfloodlight.openflow.protocol.OFErrorType;
+import org.projectfloodlight.openflow.protocol.OFMessage;
+import org.projectfloodlight.openflow.protocol.OFPortStatus;
+import org.projectfloodlight.openflow.protocol.OFStatsReply;
+import org.projectfloodlight.openflow.protocol.OFVersion;
+import org.projectfloodlight.openflow.protocol.errormsg.OFMeterModFailedErrorMsg;
import org.slf4j.Logger;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicLong;
+
import static org.slf4j.LoggerFactory.getLogger;
/**
@@ -36,11 +63,28 @@
@Component(immediate = true)
public class OpenFlowMeterProvider extends AbstractProvider implements MeterProvider {
+
private final Logger log = getLogger(getClass());
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected OpenFlowController controller;
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected MeterProviderRegistry providerRegistry;
+
+ private MeterProviderService providerService;
+
+ private static final AtomicLong XID_COUNTER = new AtomicLong(1);
+
+ static final int POLL_INTERVAL = 10;
+ static final long TIMEOUT = 30;
+
+ private Cache<Integer, MeterOperation> pendingOperations;
+ private Cache<Long, MeterOperation> pendingXid;
+
+
+ private InternalMeterListener listener = new InternalMeterListener();
+ private Map<Dpid, MeterStatsCollector> collectors = Maps.newHashMap();
/**
* Creates a OpenFlow meter provider.
@@ -49,13 +93,232 @@
super(new ProviderId("of", "org.onosproject.provider.meter"));
}
+ @Activate
+ public void activate() {
+ providerService = providerRegistry.register(this);
+
+ pendingOperations = CacheBuilder.newBuilder()
+ .expireAfterWrite(TIMEOUT, TimeUnit.SECONDS)
+ .removalListener((RemovalNotification<Integer, MeterOperation> notification) -> {
+ if (notification.getCause() == RemovalCause.EXPIRED) {
+ providerService.meterOperationFailed(notification.getValue(),
+ MeterFailReason.TIMEOUT);
+ }
+ }).build();
+
+ controller.addEventListener(listener);
+ controller.addListener(listener);
+
+ controller.getSwitches().forEach((sw -> createStatsCollection(sw)));
+ }
+
+ @Deactivate
+ public void deactivate() {
+ providerRegistry.unregister(this);
+ controller.removeEventListener(listener);
+ controller.removeListener(listener);
+ providerService = null;
+ }
+
@Override
public void performMeterOperation(DeviceId deviceId, MeterOperations meterOps) {
+ Dpid dpid = Dpid.dpid(deviceId.uri());
+ OpenFlowSwitch sw = controller.getSwitch(dpid);
+ if (sw == null) {
+ log.error("Unknown device {}", deviceId);
+ meterOps.operations().forEach(op ->
+ providerService.meterOperationFailed(op,
+ MeterFailReason.UNKNOWN_DEVICE)
+ );
+ return;
+ }
+ meterOps.operations().forEach(op -> performOperation(sw, op));
}
@Override
public void performMeterOperation(DeviceId deviceId, MeterOperation meterOp) {
+ Dpid dpid = Dpid.dpid(deviceId.uri());
+ OpenFlowSwitch sw = controller.getSwitch(dpid);
+ if (sw == null) {
+ log.error("Unknown device {}", deviceId);
+ providerService.meterOperationFailed(meterOp,
+ MeterFailReason.UNKNOWN_DEVICE);
+ return;
+ }
}
+
+ private void performOperation(OpenFlowSwitch sw, MeterOperation op) {
+
+ pendingOperations.put(op.meter().id().id(), op);
+
+
+ Meter meter = op.meter();
+ MeterModBuilder builder = MeterModBuilder.builder(meter.id().id(), sw.factory());
+ if (meter.isBurst()) {
+ builder.burst();
+ }
+ builder.withBands(meter.bands())
+ .withId(meter.id())
+ .withRateUnit(meter.unit());
+
+ switch (op.type()) {
+ case ADD:
+ sw.sendMsg(builder.add());
+ break;
+ case REMOVE:
+ sw.sendMsg(builder.remove());
+ break;
+ case MODIFY:
+ sw.sendMsg(builder.modify());
+ break;
+ default:
+ log.warn("Unknown Meter command {}; not sending anything",
+ op.type());
+ providerService.meterOperationFailed(op,
+ MeterFailReason.UNKNOWN_COMMAND);
+ }
+
+ }
+
+ private void createStatsCollection(OpenFlowSwitch sw) {
+ if (isMeterSupported(sw)) {
+ MeterStatsCollector msc = new MeterStatsCollector(sw, POLL_INTERVAL);
+ msc.start();
+ collectors.put(new Dpid(sw.getId()), msc);
+ }
+ }
+
+ private boolean isMeterSupported(OpenFlowSwitch sw) {
+ if (sw.factory().getVersion() == OFVersion.OF_10 ||
+ sw.factory().getVersion() == OFVersion.OF_11 ||
+ sw.factory().getVersion() == OFVersion.OF_12) {
+ return false;
+ }
+
+ return true;
+ }
+
+ private void pushMeterStats(Dpid dpid, OFStatsReply msg) {
+
+ }
+
+ private void signalMeterError(OFMeterModFailedErrorMsg meterError,
+ MeterOperation op) {
+ switch (meterError.getCode()) {
+ case UNKNOWN:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.UNKNOWN_DEVICE);
+ break;
+ case METER_EXISTS:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.EXISTING_METER);
+ break;
+ case INVALID_METER:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.INVALID_METER);
+ break;
+ case UNKNOWN_METER:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.UNKNOWN);
+ break;
+ case BAD_COMMAND:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.UNKNOWN_COMMAND);
+ break;
+ case BAD_FLAGS:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.UNKNOWN_FLAGS);
+ break;
+ case BAD_RATE:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.BAD_RATE);
+ break;
+ case BAD_BURST:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.BAD_BURST);
+ break;
+ case BAD_BAND:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.BAD_BAND);
+ break;
+ case BAD_BAND_VALUE:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.BAD_BAND_VALUE);
+ break;
+ case OUT_OF_METERS:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.OUT_OF_METERS);
+ break;
+ case OUT_OF_BANDS:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.OUT_OF_BANDS);
+ break;
+ default:
+ providerService.meterOperationFailed(op,
+ MeterFailReason.UNKNOWN);
+ }
+ }
+
+ private class InternalMeterListener
+ implements OpenFlowSwitchListener, OpenFlowEventListener {
+ @Override
+ public void handleMessage(Dpid dpid, OFMessage msg) {
+ switch (msg.getType()) {
+ case STATS_REPLY:
+ pushMeterStats(dpid, (OFStatsReply) msg);
+ break;
+ case ERROR:
+ OFErrorMsg error = (OFErrorMsg) msg;
+ if (error.getErrType() == OFErrorType.METER_MOD_FAILED) {
+ MeterOperation op =
+ pendingOperations.getIfPresent(error.getXid());
+ pendingOperations.invalidate(error.getXid());
+ if (op == null) {
+ log.warn("Unknown Meter operation failed {}", error);
+ } else {
+ OFMeterModFailedErrorMsg meterError =
+ (OFMeterModFailedErrorMsg) error;
+ signalMeterError(meterError, op);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ }
+
+ @Override
+ public void switchAdded(Dpid dpid) {
+ createStatsCollection(controller.getSwitch(dpid));
+ }
+
+ @Override
+ public void switchRemoved(Dpid dpid) {
+ MeterStatsCollector msc = collectors.remove(dpid);
+ if (msc != null) {
+ msc.stop();
+ }
+ }
+
+ @Override
+ public void switchChanged(Dpid dpid) {
+
+ }
+
+ @Override
+ public void portChanged(Dpid dpid, OFPortStatus status) {
+
+ }
+
+ @Override
+ public void receivedRoleReply(Dpid dpid, RoleState requested, RoleState response) {
+
+ }
+ }
+
+
+
}