| /* |
| * 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.utils.progress.jmx; |
| |
| import java.util.Optional; |
| import java.util.concurrent.atomic.AtomicLong; |
| import java.util.regex.Pattern; |
| import javax.management.Notification; |
| import javax.management.NotificationBroadcasterSupport; |
| import javax.management.ObjectName; |
| |
| import org.apache.cassandra.utils.progress.ProgressEvent; |
| import org.apache.cassandra.utils.progress.ProgressListener; |
| |
| import static org.apache.cassandra.service.ActiveRepairService.Status; |
| |
| /** |
| * ProgressListener that translates ProgressEvent to legacy JMX Notification message (backward compatibility support) |
| */ |
| public class LegacyJMXProgressSupport implements ProgressListener |
| { |
| protected static final Pattern SESSION_FAILED_MATCHER = Pattern.compile("Repair session .* for range .* failed with error .*|Repair command .* failed with error .*"); |
| protected static final Pattern SESSION_SUCCESS_MATCHER = Pattern.compile("Repair session .* for range .* finished"); |
| |
| private final AtomicLong notificationSerialNumber = new AtomicLong(); |
| private final String jmxObjectName; |
| |
| private final NotificationBroadcasterSupport broadcaster; |
| |
| public LegacyJMXProgressSupport(NotificationBroadcasterSupport broadcaster, |
| String jmxObjectName) |
| { |
| this.broadcaster = broadcaster; |
| this.jmxObjectName = jmxObjectName; |
| } |
| |
| @Override |
| public void progress(String tag, ProgressEvent event) |
| { |
| if (tag.startsWith("repair:")) |
| { |
| Optional<int[]> legacyUserData = getLegacyUserdata(tag, event); |
| if (legacyUserData.isPresent()) |
| { |
| Notification jmxNotification = new Notification("repair", jmxObjectName, notificationSerialNumber.incrementAndGet(), event.getMessage()); |
| jmxNotification.setUserData(legacyUserData.get()); |
| broadcaster.sendNotification(jmxNotification); |
| } |
| } |
| } |
| |
| protected static Optional<int[]> getLegacyUserdata(String tag, ProgressEvent event) |
| { |
| Optional<Status> status = getStatus(event); |
| if (status.isPresent()) |
| { |
| int[] result = new int[2]; |
| result[0] = getCmd(tag); |
| result[1] = status.get().ordinal(); |
| return Optional.of(result); |
| } |
| return Optional.empty(); |
| } |
| |
| protected static Optional<Status> getStatus(ProgressEvent event) |
| { |
| switch (event.getType()) |
| { |
| case START: |
| return Optional.of(Status.STARTED); |
| case COMPLETE: |
| return Optional.of(Status.FINISHED); |
| case ERROR: |
| case PROGRESS: |
| if (SESSION_FAILED_MATCHER.matcher(event.getMessage()).matches()) |
| { |
| return Optional.of(Status.SESSION_FAILED); |
| } |
| else if (SESSION_SUCCESS_MATCHER.matcher(event.getMessage()).matches()) |
| { |
| return Optional.of(Status.SESSION_SUCCESS); |
| } |
| } |
| |
| return Optional.empty(); |
| } |
| |
| protected static int getCmd(String tag) |
| { |
| return Integer.valueOf(tag.split(":")[1]); |
| } |
| } |