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Rework StreamManager

This commit is contained in:
elcallio 2016-10-11 14:07:25 +02:00 committed by Calle Wilund
parent 4ed049739a
commit f4f3c44dc1
1 changed files with 27 additions and 36 deletions
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63
src/main/java/org/apache/cassandra/streaming/StreamManager.java
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@ -26,21 +26,23 @@ package org.apache.cassandra.streaming;
import java.util.HashSet;
import java.util.Set;
import java.util.logging.Logger;
import javax.json.JsonArray;
import javax.json.JsonObject;
import javax.management.ListenerNotFoundException;
import javax.management.MBeanNotificationInfo;
import javax.management.NotificationBroadcasterSupport;
import javax.management.NotificationFilter;
import javax.management.NotificationListener;
import javax.management.openmbean.CompositeData;
import org.apache.cassandra.streaming.management.StreamStateCompositeData;
import com.google.common.base.Function;
import com.google.common.collect.Iterables;
import com.google.common.collect.Sets;
import com.scylladb.jmx.api.APIClient;
import com.scylladb.jmx.metrics.APIMBean;
/**
* StreamManager manages currently running {@link StreamResultFuture}s and
@ -49,62 +51,51 @@ import com.scylladb.jmx.api.APIClient;
* All stream operation should be created through this class to track streaming
* status and progress.
*/
public class StreamManager implements StreamManagerMBean {
public static final StreamManager instance = new StreamManager();
private static final java.util.logging.Logger logger = java.util.logging.Logger
.getLogger(StreamManager.class.getName());
private APIClient c = new APIClient();
public class StreamManager extends APIMBean implements StreamManagerMBean {
private static final Logger logger = Logger.getLogger(StreamManager.class.getName());
private final NotificationBroadcasterSupport notifier = new NotificationBroadcasterSupport();
public StreamManager(APIClient c) {
super(c);
}
public Set<StreamState> getState() {
JsonArray arr = c.getJsonArray("/stream_manager/");
JsonArray arr = client.getJsonArray("/stream_manager/");
Set<StreamState> res = new HashSet<StreamState>();
for (int i = 0; i < arr.size(); i++) {
JsonObject obj = arr.getJsonObject(i);
res.add(new StreamState(obj.getString("plan_id"), obj.getString("description"), SessionInfo.fromJsonArr(obj.getJsonArray("sessions"))));
res.add(new StreamState(obj.getString("plan_id"), obj.getString("description"),
SessionInfo.fromJsonArr(obj.getJsonArray("sessions"))));
}
return res;
}
public static StreamManager getInstance() {
return instance;
}
@Override
public Set<CompositeData> getCurrentStreams() {
logger.finest("getCurrentStreams");
return Sets.newHashSet(Iterables.transform(getState(), new Function<StreamState, CompositeData>()
{
public CompositeData apply(StreamState input)
{
return StreamStateCompositeData.toCompositeData(input);
}
}));
return Sets
.newHashSet(Iterables.transform(getState(), input -> StreamStateCompositeData.toCompositeData(input)));
}
@Override
public void removeNotificationListener(NotificationListener arg0,
NotificationFilter arg1, Object arg2)
throws ListenerNotFoundException {
// TODO Auto-generated method stub
public void addNotificationListener(NotificationListener listener, NotificationFilter filter, Object handback) {
notifier.addNotificationListener(listener, filter, handback);
}
@Override
public void addNotificationListener(NotificationListener arg0,
NotificationFilter arg1, Object arg2)
throws IllegalArgumentException {
// TODO Auto-generated method stub
public void removeNotificationListener(NotificationListener listener) throws ListenerNotFoundException {
notifier.removeNotificationListener(listener);
}
@Override
public void removeNotificationListener(NotificationListener listener, NotificationFilter filter, Object handback)
throws ListenerNotFoundException {
notifier.removeNotificationListener(listener, filter, handback);
}
@Override
public MBeanNotificationInfo[] getNotificationInfo() {
// TODO Auto-generated method stub
return null;
}
@Override
public void removeNotificationListener(NotificationListener arg0)
throws ListenerNotFoundException {
// TODO Auto-generated method stub
return notifier.getNotificationInfo();
}
}