| /* |
| * 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.uima.ducc.orchestrator.maintenance; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| |
| import javax.management.MalformedObjectNameException; |
| |
| import org.apache.uima.ducc.common.exception.DuccConfigurationException; |
| import org.apache.uima.ducc.common.mq.MqHelper; |
| import org.apache.uima.ducc.common.utils.DuccLogger; |
| import org.apache.uima.ducc.common.utils.DuccLoggerComponents; |
| import org.apache.uima.ducc.common.utils.DuccPropertiesHelper; |
| import org.apache.uima.ducc.common.utils.DuccPropertiesResolver; |
| import org.apache.uima.ducc.common.utils.id.DuccId; |
| import org.apache.uima.ducc.transport.event.common.DuccWorkMap; |
| |
| public class MqReaper { |
| |
| private static final DuccLogger logger = DuccLoggerComponents.getOrLogger(MqReaper.class.getName()); |
| |
| private static DuccId duccId = null; |
| |
| private MqHelper mqHelper = null; |
| |
| private DuccPropertiesResolver duccPropertiesResolver = null; |
| |
| private String jd_queue_prefix = null; |
| |
| private static MqReaper instance = null; |
| |
| public static MqReaper getInstance() throws MalformedObjectNameException, DuccConfigurationException, IOException { |
| if(instance == null) { |
| instance = new MqReaper(); |
| } |
| return instance; |
| } |
| |
| public static void resetInstance() { |
| instance = null; |
| } |
| |
| public MqReaper() throws MalformedObjectNameException, DuccConfigurationException, IOException { |
| resolve(); |
| init(); |
| } |
| |
| private void init() throws MalformedObjectNameException, DuccConfigurationException, IOException { |
| String location = "init"; |
| try { |
| mqHelper = new MqHelper(); |
| } catch (MalformedObjectNameException e) { |
| logger.error(location,duccId,e); |
| throw e; |
| } catch (NullPointerException e) { |
| logger.error(location,duccId,e); |
| throw e; |
| } catch (DuccConfigurationException e) { |
| logger.error(location,duccId,e); |
| throw e; |
| } catch (IOException e) { |
| logger.error(location,duccId,e); |
| throw e; |
| } |
| logger.info(location,duccId,DuccPropertiesResolver.ducc_broker_hostname+":"+mqHelper.get_broker_hostname()); |
| logger.info(location,duccId,DuccPropertiesResolver.ducc_broker_jmx_port+":"+mqHelper.get_broker_jmx_port()); |
| logger.info(location,duccId,DuccPropertiesResolver.ducc_broker_name+":"+mqHelper.get_broker_name()); |
| logger.info(location,duccId,DuccPropertiesResolver.ducc_broker_url+":"+mqHelper.get_broker_url()); |
| } |
| |
| private void resolve() { |
| String location = "resolve"; |
| jd_queue_prefix = getDuccProperty(DuccPropertiesResolver.ducc_jd_queue_prefix); |
| logger.info(location,duccId,DuccPropertiesResolver.ducc_jd_queue_prefix+":"+jd_queue_prefix); |
| } |
| |
| private void configure() { |
| duccPropertiesResolver = DuccPropertiesHelper.configure(); |
| } |
| |
| private String getDuccProperty(String key) { |
| if(duccPropertiesResolver == null) { |
| configure(); |
| } |
| String value = duccPropertiesResolver.getFileProperty(key); |
| return value; |
| } |
| |
| private boolean isStartsWith(String a, String b) { |
| boolean retVal = false; |
| if(a != null) { |
| if(b != null) { |
| if(a.startsWith(b)) { |
| retVal = true; |
| } |
| } |
| } |
| return retVal; |
| } |
| |
| private ArrayList<String> getJdQueues() { |
| String location = "getJdQueues"; |
| ArrayList<String> qList = mqHelper.getQueueList(); |
| ArrayList<String> jdQueueList = new ArrayList<String>(); |
| for(String qName : qList) { |
| if(isStartsWith(qName,jd_queue_prefix)) { |
| jdQueueList.add(qName); |
| } |
| else { |
| logger.debug(location, duccId, "queue ignore:"+qName); |
| } |
| } |
| return jdQueueList; |
| } |
| |
| private String lastMessage = ""; |
| private long lastTime = System.currentTimeMillis(); |
| |
| private void pruningStatus(int size, int removed) { |
| String location = "pruningStatus"; |
| String message = "size:"+size+" "+"removed:"+removed; |
| long time = System.currentTimeMillis(); |
| if(message.equals(lastMessage)) { |
| long elapsed = time - lastTime; |
| if(elapsed > 1000*60*60) { |
| logger.info(location, duccId, message); |
| lastTime = time; |
| } |
| } |
| else { |
| logger.info(location, duccId, message); |
| lastMessage = message; |
| lastTime = time; |
| } |
| } |
| |
| public int removeUnusedJdQueues(DuccWorkMap workMap) { |
| String location = "removeUnusedJdQueues"; |
| int removed = 0; |
| try { |
| ArrayList<String> qList = getJdQueues(); |
| Iterator<DuccId> iterator = workMap.getJobKeySet().iterator(); |
| while( iterator.hasNext() ) { |
| DuccId jobId = iterator.next(); |
| String jqKeep = jd_queue_prefix+jobId.getFriendly(); |
| if(qList.remove(jqKeep)) { |
| logger.debug(location, duccId, "queue keep:"+jqKeep); |
| } |
| else { |
| logger.trace(location, duccId, "queue not found:"+jqKeep); |
| } |
| } |
| for( String qName : qList ) { |
| logger.info(location, duccId, "queue discard:"+qName); |
| try { |
| mqHelper.removeQueue(qName); |
| removed++; |
| } |
| catch(Throwable t) { |
| logger.error(location, duccId, t); |
| init(); |
| } |
| } |
| pruningStatus(qList.size(),removed); |
| } |
| catch(Throwable t) { |
| logger.error(location, duccId, t); |
| } |
| return removed; |
| } |
| |
| } |