| /* |
| * 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.ws.db; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import org.apache.uima.ducc.common.persistence.rm.IRmPersistence; |
| import org.apache.uima.ducc.common.persistence.rm.RmPersistenceFactory; |
| import org.apache.uima.ducc.common.utils.DuccLogger; |
| import org.apache.uima.ducc.common.utils.DuccLoggerComponents; |
| import org.apache.uima.ducc.common.utils.DuccPropertiesResolver; |
| import org.apache.uima.ducc.common.utils.IDuccLoggerComponents; |
| import org.apache.uima.ducc.common.utils.id.DuccId; |
| |
| public class DbQuery { |
| |
| private static DuccLogger logger = DuccLoggerComponents.getWsLogger(DbQuery.class.getName()); |
| private static DuccId jobid = null; |
| |
| private static DbQuery instance = null; |
| |
| private static boolean enabled = true; |
| |
| private IRmPersistence persistence = null; |
| |
| private static String component = IDuccLoggerComponents.abbrv_webServer; |
| |
| static { |
| synchronized(DbQuery.class) { |
| if(instance == null) { |
| instance = new DbQuery(); |
| } |
| } |
| } |
| |
| private DbQuery() { |
| DuccPropertiesResolver dpr = DuccPropertiesResolver.getInstance(); |
| String value; |
| value = dpr.getProperty(DuccPropertiesResolver.ducc_database_host); |
| if(value != null) { |
| if(value.equalsIgnoreCase(DuccPropertiesResolver.ducc_database_disabled)) { |
| enabled = false; |
| } |
| } |
| persistence = RmPersistenceFactory.getInstance(this.getClass().getName(),component); |
| } |
| |
| public static DbQuery getInstance() { |
| return instance; |
| } |
| |
| public boolean isEnabled() { |
| return enabled; |
| } |
| |
| public boolean isUp() { |
| return (getMapMachines().size() > 0); |
| } |
| |
| public static void dumpMap(Map<String, IDbMachine> dbMachineMap) { |
| String location = "dumpMap"; |
| if(dbMachineMap != null) { |
| if(!dbMachineMap.isEmpty()) { |
| for(Entry<String, IDbMachine> entry : dbMachineMap.entrySet()) { |
| String key = entry.getKey(); |
| String value = entry.getValue().getIp(); |
| logger.debug(location, jobid, "host="+key+" "+"ip="+value); |
| } |
| } |
| else { |
| logger.debug(location, jobid, "map is empty"); |
| } |
| } |
| else { |
| logger.debug(location, jobid, "map is null"); |
| } |
| } |
| |
| public Map<String, IDbMachine> getMapMachines() { |
| String location = "getMapMachines"; |
| Map<String, IDbMachine> retVal = new HashMap<String, IDbMachine>(); |
| if(isEnabled()) { |
| try { |
| Map<String, Map<String, Object>> state = persistence.getAllMachines(); |
| if(!state.isEmpty()) { |
| for ( String key : state.keySet() ) { |
| Map<String, Object> entry = state.get(key); |
| DbMachine value = new DbMachine(entry); |
| retVal.put(key, value); |
| } |
| } |
| else { |
| logger.info(location, jobid, "map is empty"); |
| } |
| } |
| catch(Exception e) { |
| logger.error(location, jobid, e); |
| } |
| } |
| else { |
| logger.info(location, jobid, "enabled="+enabled); |
| } |
| dumpMap(retVal); |
| return retVal; |
| } |
| |
| public void close() { |
| if(persistence != null) { |
| persistence.close(); |
| } |
| } |
| } |