Coverage report

  %line %branch
org.apache.jcs.auxiliary.lateral.socket.tcp.discovery.UDPDiscoveryManager
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100% 

 1  
 package org.apache.jcs.auxiliary.lateral.socket.tcp.discovery;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
 12  
  *   http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 import java.util.HashMap;
 23  
 import java.util.Map;
 24  
 
 25  
 import org.apache.commons.logging.Log;
 26  
 import org.apache.commons.logging.LogFactory;
 27  
 import org.apache.jcs.auxiliary.lateral.socket.tcp.behavior.ITCPLateralCacheAttributes;
 28  
 import org.apache.jcs.engine.behavior.ICompositeCacheManager;
 29  
 
 30  
 /**
 31  
  * This manages UDPDiscovery Services. We should end up with one service per
 32  
  * Lateral Cache Manager Instance. One service works for multiple regions. We
 33  
  * don't want a connection for each region.
 34  
  *
 35  
  * @author Aaron Smuts
 36  
  *
 37  
  */
 38  
 public class UDPDiscoveryManager
 39  
 {
 40  26
     private final static Log log = LogFactory.getLog( UDPDiscoveryManager.class );
 41  
 
 42  13
     private static UDPDiscoveryManager INSTANCE = new UDPDiscoveryManager();
 43  
 
 44  13
     private Map services = new HashMap();
 45  
 
 46  
     private UDPDiscoveryManager()
 47  13
     {
 48  
         // noopt
 49  13
     }
 50  
 
 51  
     /**
 52  
      * Singelton
 53  
      *
 54  
      * @return UDPDiscoveryManager
 55  
      */
 56  
     public static UDPDiscoveryManager getInstance()
 57  
     {
 58  26
         return INSTANCE;
 59  
     }
 60  
 
 61  
     /**
 62  
      * Returns the UDP Discovery service associated with this instance.
 63  
      *
 64  
      * @param lca
 65  
      *            ITCPLateralCacheAttributes
 66  
      * @param cacheMgr
 67  
      * @return
 68  
      */
 69  
     public synchronized UDPDiscoveryService getService( ITCPLateralCacheAttributes lca, ICompositeCacheManager cacheMgr )
 70  
     {
 71  26
         UDPDiscoveryService service = getService( lca.getUdpDiscoveryAddr(), lca.getUdpDiscoveryPort(), lca.getTcpListenerPort(), cacheMgr );
 72  
 
 73  
         // TODO find a way to remote these attributes from the service, the manager needs it on disocvery.
 74  26
         service.setTcpLateralCacheAttributes( lca );
 75  26
         return service;
 76  
     }
 77  
 
 78  
     /**
 79  
      * Creates a service for the address and port if one doesn't exist already.
 80  
      * <p>
 81  
      * TODO we may need to key this using the listener port too
 82  
      *
 83  
      * @param discoveryAddress
 84  
      * @param discoveryPort
 85  
      * @param servicePort
 86  
      * @param cacheMgr
 87  
      * @return
 88  
      */
 89  
     public synchronized UDPDiscoveryService getService( String discoveryAddress, int discoveryPort, class="keyword">int servicePort,
 90  
                                                        ICompositeCacheManager cacheMgr )
 91  
     {
 92  26
         String key = discoveryAddress + ":" + discoveryPort;
 93  
 
 94  26
         UDPDiscoveryService service = (UDPDiscoveryService) services.get( key );
 95  26
         if ( service == null )
 96  
         {
 97  13
             if ( log.isInfoEnabled() )
 98  
             {
 99  13
                 log.info( "Creating service for address:port [" + key + "]" );
 100  
             }
 101  
 
 102  13
             service = new UDPDiscoveryService( discoveryAddress, discoveryPort, servicePort, cacheMgr );
 103  13
             services.put( key, service );
 104  
         }
 105  
 
 106  26
         if ( log.isDebugEnabled() )
 107  
         {
 108  0
             log.debug( "Returning service [" + service + "] for key [" + key + "]" );
 109  
         }
 110  
 
 111  26
         return service;
 112  
 
 113  
     }
 114  
 
 115  
 }

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