| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.cassandra.streaming.management; |
| |
| import java.util.concurrent.atomic.AtomicLong; |
| import javax.management.Notification; |
| import javax.management.NotificationBroadcasterSupport; |
| |
| import org.apache.cassandra.streaming.*; |
| |
| /** |
| */ |
| public class StreamEventJMXNotifier extends NotificationBroadcasterSupport implements StreamEventHandler |
| { |
| // interval in millisec to use for progress notification |
| private static final long PROGRESS_NOTIFICATION_INTERVAL = 1000; |
| |
| private final AtomicLong seq = new AtomicLong(); |
| |
| private long progressLastSent; |
| |
| public void handleStreamEvent(StreamEvent event) |
| { |
| Notification notif = null; |
| switch (event.eventType) |
| { |
| case STREAM_PREPARED: |
| notif = new Notification(StreamEvent.SessionPreparedEvent.class.getCanonicalName(), |
| StreamManagerMBean.OBJECT_NAME, |
| seq.getAndIncrement()); |
| notif.setUserData(SessionInfoCompositeData.toCompositeData(event.planId, ((StreamEvent.SessionPreparedEvent) event).session)); |
| break; |
| case STREAM_COMPLETE: |
| notif = new Notification(StreamEvent.SessionCompleteEvent.class.getCanonicalName(), |
| StreamManagerMBean.OBJECT_NAME, |
| seq.getAndIncrement()); |
| notif.setUserData(SessionCompleteEventCompositeData.toCompositeData((StreamEvent.SessionCompleteEvent) event)); |
| break; |
| case FILE_PROGRESS: |
| ProgressInfo progress = ((StreamEvent.ProgressEvent) event).progress; |
| long current = System.currentTimeMillis(); |
| if (current - progressLastSent >= PROGRESS_NOTIFICATION_INTERVAL || progress.isCompleted()) |
| { |
| notif = new Notification(StreamEvent.ProgressEvent.class.getCanonicalName(), |
| StreamManagerMBean.OBJECT_NAME, |
| seq.getAndIncrement()); |
| notif.setUserData(ProgressInfoCompositeData.toCompositeData(event.planId, progress)); |
| progressLastSent = System.currentTimeMillis(); |
| } |
| else |
| { |
| return; |
| } |
| break; |
| } |
| sendNotification(notif); |
| } |
| |
| public void onSuccess(StreamState result) |
| { |
| Notification notif = new Notification(StreamEvent.class.getCanonicalName() + ".success", |
| StreamManagerMBean.OBJECT_NAME, |
| seq.getAndIncrement()); |
| notif.setUserData(StreamStateCompositeData.toCompositeData(result)); |
| sendNotification(notif); |
| } |
| |
| public void onFailure(Throwable t) |
| { |
| Notification notif = new Notification(StreamEvent.class.getCanonicalName() + ".failure", |
| StreamManagerMBean.OBJECT_NAME, |
| seq.getAndIncrement()); |
| notif.setUserData(t.fillInStackTrace().toString()); |
| sendNotification(notif); |
| } |
| } |