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.openecomp.sdnc.sli.resource.dblib.config.JndiConfiguration;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 /**
  40  * @version $Revision: 1.6 $
  41  * Change Log
  42  * Author         Date     Comments
  43  * ============== ======== ====================================================
  44  * Rich Tabedzki
  45  */
  46 public abstract class AbstractResourceManagerFactory {
  47         private static Logger LOGGER = LoggerFactory.getLogger(AbstractResourceManagerFactory.class);
  48
  49         public abstract CachedDataSource[] initDBResourceManager(DbConfigPool dbConfig, DBResourceManager manager) throws Exception;
  50         public abstract CachedDataSource[] initDBResourceManager(DbConfigPool dbConfig, DBResourceManager dbResourceManager, String sourceName) throws SQLException ;
  51
  52
  53         public static AbstractResourceManagerFactory createIntstance() throws FactoryNotDefinedException {
  54                 throw new FactoryNotDefinedException("Factory method 'createIntstance' needs to be overriden in DBResourceManagerFactory");
  55         }
  56
  57         public class DBInitTask implements Callable<CachedDataSource>
  58         {
  59                 private BaseDBConfiguration config = null;
  60                 private Set<DBInitTask> activeTasks;
  61
  62                 public DBInitTask(JndiConfiguration jndiConfig, Set<DBInitTask> tasks){
  63                         this.config = jndiConfig;
  64                         this.activeTasks = tasks;
  65                 }
  66
  67                 public DBInitTask(JDBCConfiguration jdbcconfig, Set<DBInitTask> tasks) {
  68                         this.config = jdbcconfig;
  69                         this.activeTasks = tasks;
  70                 }
  71
  72                 public CachedDataSource call() throws Exception {
  73                         CachedDataSource ds = null;
  74                         try {
  75                                 ds = CachedDataSourceFactory.createDataSource(config);
  76                                 return ds;
  77                         } finally {
  78                                 synchronized(activeTasks){
  79                                         activeTasks.remove(this);
  80                                         if(activeTasks.isEmpty()){
  81                                                 final Runnable closure = new Runnable() {
  82
  83                                                         public void run() {
  84                                                                 try {
  85                                                                         Thread.sleep(300);
  86                                                                 } catch (Exception e) {
  87                                                                 }
  88                                                                 synchronized(activeTasks){
  89                                                                         activeTasks.notifyAll();
  90                                                                 }
  91                                                         }
  92                                                 };
  93                                                 if(LOGGER.isDebugEnabled())
  94                                                         LOGGER.debug("Completed CachedDataSource.Call and notifyAll from "+ds.getDbConnectionName());
  95                                                 Thread worker = new Thread(closure);
  96                                                 worker.setDaemon(true);
  97                                                 worker.start();
  98                                         } else {
  99                                                 if(LOGGER.isDebugEnabled())
 100                                                         LOGGER.debug("Completed CachedDataSource.Call from "+ds.getDbConnectionName());
 101                                         }
 102                                 }
 103                         }
 104                 }
 105         }
 106 }