dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/AbstractResourceManagerFactory.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * openecomp
   4  * ================================================================================
   5  * Copyright (C) 2016 - 2017 AT&T
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.openecomp.sdnc.sli.resource.dblib.factory;
  22
  23
  24 import java.sql.SQLException;
  25 import java.util.Set;
  26 import java.util.concurrent.Callable;
  27
  28 import org.openecomp.sdnc.sli.resource.dblib.CachedDataSource;
  29 import org.openecomp.sdnc.sli.resource.dblib.CachedDataSourceFactory;
  30 import org.openecomp.sdnc.sli.resource.dblib.DBConfigException;
  31 import org.openecomp.sdnc.sli.resource.dblib.DBResourceManager;
  32 import org.openecomp.sdnc.sli.resource.dblib.config.BaseDBConfiguration;
  33 import org.openecomp.sdnc.sli.resource.dblib.config.DbConfigPool;
  34 import org.openecomp.sdnc.sli.resource.dblib.config.JDBCConfiguration;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 /**
  39  * @version $Revision: 1.6 $
  40  * Change Log
  41  * Author         Date     Comments
  42  * ============== ======== ====================================================
  43  * Rich Tabedzki
  44  */
  45 public abstract class AbstractResourceManagerFactory {
  46         private static Logger LOGGER = LoggerFactory.getLogger(AbstractResourceManagerFactory.class);
  47
  48         public abstract CachedDataSource[] initDBResourceManager(DbConfigPool dbConfig, DBResourceManager manager) throws Exception;
  49         public abstract CachedDataSource[] initDBResourceManager(DbConfigPool dbConfig, DBResourceManager dbResourceManager, String sourceName) throws SQLException ;
  50
  51
  52         public static AbstractResourceManagerFactory createIntstance() throws FactoryNotDefinedException {
  53                 throw new FactoryNotDefinedException("Factory method 'createIntstance' needs to be overriden in DBResourceManagerFactory");
  54         }
  55
  56         public class DBInitTask implements Callable<CachedDataSource>
  57         {
  58                 private BaseDBConfiguration config = null;
  59                 private Set<DBInitTask> activeTasks;
  60
  61                 public DBInitTask(JDBCConfiguration jdbcconfig, Set<DBInitTask> tasks) {
  62                         this.config = jdbcconfig;
  63                         this.activeTasks = tasks;
  64                 }
  65
  66                 public CachedDataSource call() throws Exception {
  67                         CachedDataSource ds = null;
  68                         try {
  69                                 ds = CachedDataSourceFactory.createDataSource(config);
  70                                 return ds;
  71                         } finally {
  72                                 synchronized(activeTasks) {
  73                                         activeTasks.remove(this);
  74                                         if (activeTasks.isEmpty()) {
  75                                                 final Runnable closure = new Runnable() {
  76
  77                                                         public void run() {
  78                                                                 try {
  79                                                                         Thread.sleep(300);
  80                                                                 } catch (Exception e) {
  81                                                                 }
  82                                                                 synchronized(activeTasks) {
  83                                                                         activeTasks.notifyAll();
  84                                                                 }
  85                                                         }
  86                                                 };
  87                                                 if (LOGGER.isDebugEnabled()) {
  88                                                         LOGGER.debug("Completed CachedDataSource.Call and notifyAll from " + ds.getDbConnectionName());
  89                                                 }
  90                                                 Thread worker = new Thread(closure);
  91                                                 worker.setDaemon(true);
  92                                                 worker.start();
  93                                         } else {
  94                                                 if (LOGGER.isDebugEnabled()) {
  95                                                         if (ds != null) {
  96                                                                 LOGGER.debug("Completed CachedDataSource.Call from " + ds.getDbConnectionName());
  97                                                         }
  98                                                 }
  99                                         }
 100                                 }
 101                         }
 102                 }
 103         }
 104 }