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| # | Location | File | Last Modified |
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| 1 | IV-eHMP_CIF.zip\IMAG_Source\VISA\Java\ImagingCommon\main\src\java\gov\va\med\server | ServerAdapterImpl.java | Mon Dec 4 21:34:24 2017 UTC |
| 2 | IV-eHMP_CIF.zip\IMAG_Source\VISA\Java\ImagingCommon\main\src\java\gov\va\med\server | ServerAdapterImpl.java | Mon Dec 4 22:02:09 2017 UTC |
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| 1 | /** | |
| 2 | * Package : MAG - Vi stA Imagin g | |
| 3 | * WARNING : Per VHA Directive 2004-038, this routi ne should not be mod ified. | |
| 4 | * Date Cr eated: Oct 14, 2008 | |
| 5 | * Site Na me: Washi ngton OI F ield Offic e, Silver Spring, MD | |
| 6 | * @author
|
|
| 7 | * @versio n 1.0 | |
| 8 | * | |
| 9 | * ------- ---------- ---------- ---------- ---------- ---------- ------- | |
| 10 | * Propert y of the U S Governme nt. | |
| 11 | * No perm ission to copy or re distribute this soft ware is gi ven. | |
| 12 | * Use of unreleased versions of this so ftware req uires the user | |
| 13 | * to exec ute a writ ten test a greement w ith the Vi stA Imagin g | |
| 14 | * Develop ment Offic e of the D epartment of Veteran s Affairs, | |
| 15 | * telepho ne (301) 7 34-0100. | |
| 16 | * | |
| 17 | * The Foo d and Drug Administr ation clas sifies thi s software as | |
| 18 | * a Class II medica l device. As such, it may not be change d | |
| 19 | * in any way. Modi fications to this so ftware may result in an | |
| 20 | * adulter ated medic al device under 21CF R820, the use of whi ch | |
| 21 | * is cons idered to be a viola tion of US Federal S tatutes. | |
| 22 | * ------- ---------- ---------- ---------- ---------- ---------- ------- | |
| 23 | */ | |
| 24 | package go v.va.med.s erver; | |
| 25 | ||
| 26 | import gov .va.med.im aging.Stac kTraceAnal yzer; | |
| 27 | import jav a.io.Seria lizable; | |
| 28 | import jav a.util.Has hSet; | |
| 29 | import jav a.util.Set ; | |
| 30 | import org .apache.lo gging.log4 j.LogManag er; | |
| 31 | import org .apache.lo gging.log4 j.Logger; | |
| 32 | ||
| 33 | /** | |
| 34 | * The cen tral gatew ay of the server agn ostic mech anism. Co mponents o f Visa | |
| 35 | * registe r interest in events here. Se rver-speci fic lifecy cle classe s send mes sages | |
| 36 | * to this singleton . | |
| 37 | * This cl ass also p rovides ac cess to au thenticati on/authori zation ser vices. | |
| 38 | * | |
| 39 | * @author
|
|
| 40 | * | |
| 41 | */ | |
| 42 | public cla ss ServerA dapterImpl | |
| 43 | implements ClusterEv entAdapter , ServerAd apter | |
| 44 | { | |
| 45 | pr ivate stat ic ServerA dapterImpl singleton = null; | |
| 46 | pu blic stati c synchron ized Serve rAdapter g etSingleto n() | |
| 47 | { | |
| 48 | if(s ingleton = = null) | |
| 49 | single ton = new ServerAdap terImpl(); | |
| 50 | ||
| 51 | retu rn singlet on; | |
| 52 | } | |
| 53 | ||
| 54 | pr ivate Set< ServerLife cycleListe ner> serve rEventList eners = ne w HashSet< ServerLife cycleListe ner>(); | |
| 55 | pr ivate Set< ClusterEve ntListener > clusterE ventListen ers = new HashSet<Cl usterEvent Listener>( ); | |
| 56 | pr ivate Clus terMessage Sender clu sterMessag eSender = null; | |
| 57 | pr ivate Glob alNamingSe rver globa lNamingSer ver = null ; | |
| 58 | pr ivate Serv erAuthenti cation ser verAuthent ication = null; | |
| 59 | ||
| 60 | pr ivate fina l Logger l ogger = Lo gManager.g etLogger(t his.getCla ss()); | |
| 61 | ||
| 62 | /* * | |
| 63 | * | |
| 64 | * / | |
| 65 | pr ivate Serv erAdapterI mpl() | |
| 66 | { | |
| 67 | Stac kTraceAnal yzer stack Analyzer = new Stack TraceAnaly zer( (new Throwable( )).getStac kTrace() ) ; | |
| 68 | logg er.info( | |
| 69 | "Insta nce '" + t his.hashCo de() + "' of ServerA dapter has been crea ted, proba bly by '" + | |
| 70 | stackA nalyzer.ge tFirstElem entNotInPa ckage("gov .va.med.se rver") + | |
| 71 | "' by class load er '" + th is.getClas s().hashCo de() + "'. " + | |
| 72 | "' of type '" + this.getCl ass().getC lassLoader ().getClas s().getNam e() + "'." ); | |
| 73 | } | |
| 74 | ||
| 75 | ||
| 76 | /* * | |
| 77 | * @return t he logger | |
| 78 | * / | |
| 79 | pu blic Logge r getLogge r() | |
| 80 | { | |
| 81 | retu rn this.lo gger; | |
| 82 | } | |
| 83 | ||
| 84 | ||
| 85 | /* * | |
| 86 | * Add a new listener (on the ap plication side) that gets noti fied of cl uster stat us changes . | |
| 87 | * | |
| 88 | * @see gov. va.med.ser ver.Cluste rEventAdap ter#addClu sterEventL istener(go v.va.med.s erver.Clus terEventLi stener) | |
| 89 | * / | |
| 90 | @O verride | |
| 91 | pu blic void addCluster EventListe ner(Cluste rEventList ener liste ner) | |
| 92 | { | |
| 93 | clus terEventLi steners.ad d(listener ); | |
| 94 | } | |
| 95 | ||
| 96 | /* * | |
| 97 | * Remove a listener ( on the app lication s ide) that gets notif ied of clu ster statu s changes. | |
| 98 | * | |
| 99 | * @see gov. va.med.ser ver.Cluste rEventAdap ter#remove ClusterEve ntListener (gov.va.me d.server.C lusterEven tListener) | |
| 100 | * / | |
| 101 | @O verride | |
| 102 | pu blic void removeClus terEventLi stener(Clu sterEventL istener li stener) | |
| 103 | { | |
| 104 | clus terEventLi steners.re move(liste ner); | |
| 105 | } | |
| 106 | ||
| 107 | pu blic void setCluster MessageSen der(Cluste rMessageSe nder sende r) | |
| 108 | { | |
| 109 | if(s ender == t his.cluste rMessageSe nder) | |
| 110 | return ; // silentl y ignore | |
| 111 | ||
| 112 | if(s ender != n ull && clu sterMessag eSender != null) | |
| 113 | { | |
| 114 | getLog ger().erro r("Attempt to change cluster m essage sen der is bei ng ignored ."); | |
| 115 | return ; | |
| 116 | } | |
| 117 | ||
| 118 | if(s ender == n ull && clu sterMessag eSender != null) | |
| 119 | { | |
| 120 | getLog ger().warn ("Setting the cluste r message sender to null, allo wed but in tentional? ."); | |
| 121 | return ; | |
| 122 | } | |
| 123 | ||
| 124 | clus terMessage Sender = s ender; | |
| 125 | } | |
| 126 | ||
| 127 | /* (non-Java doc) | |
| 128 | * @see gov. va.med.ser ver.Server Adapter#ge tClusterMe ssageSende r() | |
| 129 | * / | |
| 130 | pu blic Clust erMessageS ender getC lusterMess ageSender( ) | |
| 131 | { | |
| 132 | retu rn cluster MessageSen der; | |
| 133 | } | |
| 134 | ||
| 135 | /* (non-Java doc) | |
| 136 | * @see gov. va.med.ser ver.Server Adapter#ge tGlobalNam ingServer( ) | |
| 137 | * / | |
| 138 | pu blic Globa lNamingSer ver getGlo balNamingS erver() | |
| 139 | { | |
| 140 | retu rn this.gl obalNaming Server; | |
| 141 | } | |
| 142 | ||
| 143 | /* * | |
| 144 | * @param gl obalNaming Server the globalNam ingServer to set | |
| 145 | * / | |
| 146 | pu blic void setGlobalN amingServe r(GlobalNa mingServer globalNam ingServer) | |
| 147 | { | |
| 148 | // d isregard r epetitive sets, avoi d logging any change s | |
| 149 | if(g lobalNamin gServer == this.glob alNamingSe rver) | |
| 150 | return ; | |
| 151 | ||
| 152 | // d isallow re setting th e global n aming serv er | |
| 153 | if(g lobalNamin gServer == null && t his.global NamingServ er != null ) | |
| 154 | { | |
| 155 | getLog ger().erro r("Attempt to reset the global naming se rver to nu ll is bein g disregar ded"); | |
| 156 | } | |
| 157 | else if(global NamingServ er != null && this.g lobalNamin gServer != null) | |
| 158 | { | |
| 159 | getLog ger().warn ("Changing the globa l naming s erver afte r it has b een set.") ; | |
| 160 | this.g lobalNamin gServer = globalNami ngServer; | |
| 161 | } | |
| 162 | else | |
| 163 | { | |
| 164 | getLog ger().info ("Setting global nam ing server for the f irst time. "); | |
| 165 | this.g lobalNamin gServer = globalNami ngServer; | |
| 166 | } | |
| 167 | } | |
| 168 | ||
| 169 | /* * | |
| 170 | * @return t he serverA uthenticat ion | |
| 171 | * / | |
| 172 | @O verride | |
| 173 | pu blic Serve rAuthentic ation getS erverAuthe ntication( ) | |
| 174 | { | |
| 175 | retu rn this.se rverAuthen tication; | |
| 176 | } | |
| 177 | ||
| 178 | /* * | |
| 179 | * @param se rverAuthen tication t he serverA uthenticat ion to set | |
| 180 | * / | |
| 181 | @O verride | |
| 182 | pu blic void setServerA uthenticat ion(Server Authentica tion serve rAuthentic ation) | |
| 183 | { | |
| 184 | // d isregard r epetitive sets, avoi d logging any change s | |
| 185 | if(s erverAuthe ntication == this.se rverAuthen tication) | |
| 186 | return ; | |
| 187 | ||
| 188 | // d isallow re setting th e global n aming serv er | |
| 189 | if(s erverAuthe ntication == null && this.serv erAuthenti cation != null) | |
| 190 | { | |
| 191 | getLog ger().erro r("Attempt to reset the server Authentica tion to nu ll is bein g disregar ded"); | |
| 192 | } | |
| 193 | else if(server Authentica tion != nu ll && this .serverAut henticatio n != null) | |
| 194 | { | |
| 195 | getLog ger().warn ("Changing the serve rAuthentic ation afte r it has b een set.") ; | |
| 196 | this.s erverAuthe ntication = serverAu thenticati on; | |
| 197 | } | |
| 198 | else | |
| 199 | { | |
| 200 | getLog ger().info ("Setting serverAuth entication for the f irst time. "); | |
| 201 | this.s erverAuthe ntication = serverAu thenticati on; | |
| 202 | } | |
| 203 | } | |
| 204 | ||
| 205 | ||
| 206 | /* (non-Java doc) | |
| 207 | * @see gov. va.med.ser ver.Server Adapter#ad dServerLif ecycleList ener(gov.v a.med.serv er.ServerL ifecycleLi stener) | |
| 208 | * / | |
| 209 | pu blic void addServerL ifecycleLi stener(Ser verLifecyc leListener listener) | |
| 210 | { | |
| 211 | getL ogger().in fo("Adding ServerLif eCycleList ener '" + listener.t oString() + "'."); | |
| 212 | serv erEventLis teners.add (listener) ; | |
| 213 | } | |
| 214 | ||
| 215 | /* (non-Java doc) | |
| 216 | * @see gov. va.med.ser ver.Server Adapter#re moveServer LifecycleL istener(go v.va.med.s erver.Serv erLifecycl eListener) | |
| 217 | * / | |
| 218 | pu blic void removeServ erLifecycl eListener( ServerLife cycleListe ner listen er) | |
| 219 | { | |
| 220 | getL ogger().in fo("Removi ng ServerL ifeCycleLi stener '" + listener .toString( ) + "'."); | |
| 221 | serv erEventLis teners.rem ove(listen er); | |
| 222 | } | |
| 223 | ||
| 224 | /* * | |
| 225 | * | |
| 226 | * @param ev ent | |
| 227 | * / | |
| 228 | pu blic void notifyClus terEventLi steners(Cl usterEvent event) | |
| 229 | { | |
| 230 | for( ClusterEve ntListener listener : clusterE ventListen ers) | |
| 231 | listen er.cluster Event(even t); | |
| 232 | } | |
| 233 | ||
| 234 | pr ivate bool ean server Started = false; | |
| 235 | /* * | |
| 236 | * Called fr om the ser ver-specif ic adapter s to notif y us of a server eve nt. | |
| 237 | * @param ap plicationE vent | |
| 238 | * / | |
| 239 | pu blic synch ronized vo id serverL ifecycleEv ent(Server LifecycleE vent appli cationEven t) | |
| 240 | { | |
| 241 | if( applicatio nEvent.get EventType( ) == Serve rLifecycle Event.Even tType.AFTE R_START && !serverSt arted) | |
| 242 | { | |
| 243 | server Started = true; | |
| 244 | } | |
| 245 | ||
| 246 | if( applicatio nEvent.get EventType( ) == Serve rLifecycle Event.Even tType.AFTE R_STOP && serverStar ted) | |
| 247 | { | |
| 248 | server Started = false; | |
| 249 | } | |
| 250 | ||
| 251 | noti fyServerLi fecycleLis teners(app licationEv ent); | |
| 252 | } | |
| 253 | ||
| 254 | /* * | |
| 255 | * | |
| 256 | * @param ev ent | |
| 257 | * / | |
| 258 | pr ivate void notifySer verLifecyc leListener s(ServerLi fecycleEve nt event) | |
| 259 | { | |
| 260 | getL ogger().in fo("Notify ing server lifecycle listeners , event is '" + even t.toString () + "'.") ; | |
| 261 | for( ServerLife cycleListe ner listen er : serve rEventList eners) | |
| 262 | listen er.serverL ifecycleEv ent(event) ; | |
| 263 | } | |
| 264 | ||
| 265 | /* * | |
| 266 | * | |
| 267 | * @param ms g | |
| 268 | * @return | |
| 269 | * / | |
| 270 | pu blic boole an sendMes sageToClus ter(Serial izable msg ) | |
| 271 | { | |
| 272 | getL ogger().in fo("Sendin g message '" + msg.t oString() + "' to cl uster."); | |
| 273 | retu rn cluster MessageSen der.sendMe ssageToClu ster(msg); | |
| 274 | } | |
| 275 | ||
| 276 | ||
| 277 | } |
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