245. EPMO Open Source Coordination Office Redaction File Detail Report

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245.1 Files compared

#	Location	File	Last Modified
1	IV-eHMP_CIF.zip\IMAG_Source\VISA\Java\ImagingCacheImpl\main\src\java\gov\va\med\imaging\storage\cache\impl	CacheFactory.java	Mon Dec 4 21:35:26 2017 UTC
2	IV-eHMP_CIF.zip\IMAG_Source\VISA\Java\ImagingCacheImpl\main\src\java\gov\va\med\imaging\storage\cache\impl	CacheFactory.java	Mon Dec 4 22:01:31 2017 UTC

245.2 Comparison summary

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Changed	1	2
Inserted	0	0
Removed	0	0

245.3 Comparison options

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245.4 Active regular expressions

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245.5 Comparison detail

	1	/**
	2	*
	3	*/
	4	package go v.va.med.i maging.sto rage.cache .impl;
	5
	6	import gov .va.med.im aging.stor age.cache. Cache;
	7	import gov .va.med.im aging.stor age.cache. EvictionSt rategy;
	8	import gov .va.med.im aging.stor age.cache. EvictionTi mer;
	9	import gov .va.med.im aging.stor age.cache. Region;
	10	import gov .va.med.im aging.stor age.cache. exceptions .CacheExce ption;
	11	import gov .va.med.im aging.stor age.cache. exceptions .CacheInit ialization Exception;
	12	import gov .va.med.im aging.stor age.cache. exceptions .Initializ ationExcep tion;
	13	import gov .va.med.im aging.stor age.cache. exceptions .InvalidSw eepSpecifi cation;
	14	import gov .va.med.im aging.stor age.cache. impl.evict ion.Evicti onStrategy Factory;
	15	import gov .va.med.im aging.stor age.cache. memento.*;
	16	import gov .va.med.im aging.stor age.cache. timer.Evic tionTimerI mpl;
	17
	18	import jav a.beans.XM LDecoder;
	19	import jav a.io.Input Stream;
	20	import jav a.lang.ref lect.Invoc ationTarge tException ;
	21	import jav a.lang.ref lect.Metho d;
	22	import jav a.net.URI;
	23
	24	import jav ax.managem ent.MBeanE xception;
	25
	26	import org .apache.lo gging.log4 j.LogManag er;
	27	import org .apache.lo gging.log4 j.Logger;
	28
	29	/**
	30	* @author BECKEC
	31	*
	32	* A facto ry that cr eate Cache instances , the type of which is based o n one of:
	33	* 1.) a m emento typ e
	34	* 2.) a l ocation UR L
	35	*
	36	*/
	37	public cla ss CacheFa ctory
	38	{
	39	// the creat e mode is passed in when creat ing a new cache from scratch ( i.e. not f rom a meme nto)
	40	// the Creat eMode is p assed as a String (i .e. CREATE .toString( )) rather than the e num value
	41	// so that a pplication specific configurat ors may be specified
	42	pu blic enum CreateMode
	43	{
	44	CREA TE, // confi gure with no evictio n strategi es and no regions
	45	CREA TE_TEST, // con figure wit h test reg ions and s hort term evictions
	46	CREA TE_TEST_NO _EVICTION // c onfigure w ith test r egions and no evicti on
	47	};
	48
	49	pr ivate stat ic CacheFa ctory sing leton;
	50	// a map fro m the pers istence pr otocol to the cache and cache configurat or that su pports the protocol
	51	pr ivate stat ic Protoco lCacheImpl ementation Map protoc olCacheImp lementatio nMap;
	52	pr ivate Logg er logger = LogManag er.getLogg er(this.ge tClass());
	53
	54	st atic
	55	{
	56	// a map from the persis tence prot ocol to th e cache an d cache co nfigurator that supp orts the p rotocol
	57	prot ocolCacheI mplementat ionMap = n ew Protoco lCacheImpl ementation Map();
	58
	59	prot ocolCacheI mplementat ionMap.put (
	60	gov.va.m ed.imaging .storage.c ache.impl. filesystem .FileSyste mCache.pro tocol,
	61	gov.va.m ed.imaging .storage.c ache.impl. filesystem .FileSyste mCache.cla ss,
	62	gov.va.m ed.imaging .storage.c ache.impl. filesystem .FileSyste mCacheConf igurator.c lass,
	63	gov.va.m ed.imaging .storage.c ache.impl. filesystem .memento.F ileSystemC acheMement o.class);
	64
	65	prot ocolCacheI mplementat ionMap.put (
	66	gov.va.m ed.imaging .storage.c ache.impl. jcifs.Jcif sCache.pro tocol,
	67	gov.va.m ed.imaging .storage.c ache.impl. jcifs.Jcif sCache.cla ss,
	68	gov.va.m ed.imaging .storage.c ache.impl. jcifs.Jcif sCacheConf igurator.c lass,
	69	gov.va.m ed.imaging .storage.c ache.impl. jcifs.meme nto.JcifsC acheMement o.class);
	70
	71	prot ocolCacheI mplementat ionMap.put (
	72	gov.va.m ed.imaging .storage.c ache.impl. memory.Mem oryCache.p rotocol,
	73	gov.va.m ed.imaging .storage.c ache.impl. memory.Mem oryCache.c lass,
	74	gov.va.m ed.imaging .storage.c ache.impl. memory.Mem oryCacheCo nfigurator .class,
	75	gov.va.m ed.imaging .storage.c ache.impl. memory.mem ento.Memor yCacheMeme nto.class) ;
	76	};
	77
	78	pu blic stati c synchron ized Cache Factory ge tSingleton ()
	79	{
	80	if(s ingleton = = null)
	81	single ton = new CacheFacto ry();
	82
	83	retu rn singlet on;
	84	}
	85
	86	/* *
	87	*
	88	* /
	89	pr ivate Cach eFactory()
	90	{
	91
	92	}
	93
	94	/* *
	95	* Use this method to create a c ache insta nce from a cache mem ento insta nce.
	96	*
	97	* @param me mento
	98	* @return
	99	* @throws C acheInitia lizationEx ception
	100	* /
	101	pu blic Cache createCac he(CacheMe mento meme nto)
	102	th rows Cache Initializa tionExcept ion
	103	{
	104	Clas s<? extend s Cache> c acheClass = protocol CacheImple mentationM ap.getCach eClass(mem ento);
	105
	106	Cach e cache = createCach eInstance( memento, c acheClass) ;
	107	//co nfigurator = createC onfigurato rInstance( protocol, configurat orClass, c onfigurato r);
	108
	109	retu rn cache;
	110	}
	111
	112	/* *
	113	* Use this factory me thod to cr eate a new uninitial ized Cache .
	114	*
	115	* @param pr otocol
	116	* @param na me
	117	* @return
	118	* @throws M BeanExcept ion
	119	* @throws C acheExcept ion
	120	* /
	121	pu blic Cache createCac he(String cacheName, URI locat ionUri, St ring proto typeName)
	122	th rows Cache Exception
	123	{
	124	Stri ng protoco l = locati onUri.getS cheme();
	125	Stri ng locatio n = locati onUri.getP ath();
	126
	127	logg er.info(ge tClass().g etSimpleNa me() + ".c reateCache ('" + loc ationUri.t oString() + ")");
	128	logg er.info(ge tClass().g etSimpleNa me() + ".c reateCache protocol ='" + prot ocol + "', location= '" + locat ion + "'." );
	129
	130	Clas s<? extend s Cache> c acheClass = getImple mentingCac heClass(lo cationUri) ;
	131	Clas s<? extend s CacheCon figurator> cacheConf iguratorCl ass = getI mplementin gCacheConf iguratorCl ass(locati onUri);
	132
	133	logg er.info(ge tClass().g etSimpleNa me() + ".c reateCache cacheClas s='" + cac heClass.ge tName() + "'" );
	134
	135	Cach e cache = createCach eInstance( cacheName, cacheClas s, cacheCo nfigurator Class, loc ationUri, null);
	136	//co nfigurator = createC onfigurato rInstance( protocol, configurat orClass, c onfigurato r);
	137
	138	if(p rototypeNa me != null )
	139	config ureCache(c ache, prot otypeName) ;
	140
	141	retu rn cache;
	142	}
	143
	144	/* *
	145	* Create a cache, giv en a proto type in th e given in put stream .
	146	*
	147	* @param ca cheName
	148	* @param lo cationUri
	149	* @param pr ototype
	150	* @return
	151	* @throws C acheExcept ion
	152	* /
	153	pu blic Cache createCac he(String cacheName, URI locat ionUri, In putStream prototype)
	154	th rows Cache Exception
	155	{
	156	Stri ng protoco l = locati onUri.getS cheme();
	157	Stri ng locatio n = locati onUri.getP ath();
	158
	159	logg er.info(ge tClass().g etSimpleNa me() + ".c reateCache ('" + loc ationUri.t oString() + ")");
	160	logg er.info(ge tClass().g etSimpleNa me() + ".c reateCache protocol ='" + prot ocol + "', location= '" + locat ion + "'." );
	161
	162	Clas s<? extend s Cache> c acheClass = getImple mentingCac heClass(lo cationUri) ;
	163	Clas s<? extend s CacheCon figurator> cacheConf iguratorCl ass = getI mplementin gCacheConf iguratorCl ass(locati onUri);
	164
	165	logg er.info(ge tClass().g etSimpleNa me() + ".c reateCache cacheClas s='" + cac heClass.ge tName() + "'" );
	166
	167	Cach e cache = createCach eInstance( cacheName, cacheClas s, cacheCo nfigurator Class, loc ationUri, null);
	168	//co nfigurator = createC onfigurato rInstance( protocol, configurat orClass, c onfigurato r);
	169
	170	if(p rototype ! = null)
	171	config ureCache(c ache, prot otype);
	172
	173	retu rn cache;
	174	}
	175
	176	/* *
	177	* This meth od takes a n unconfig ured cache and runs the given configurat ion
	178	* strategy on it. Th e configur ation stra tegy name is a resou rce name o f an XMLEn coded
	179	* CacheConf igurationS trategyMem ento insta nce.
	180	*
	181	* @param ca che
	182	* @param pr ototypeNam e
	183	* @throws C acheInitia lizationEx ception
	184	* /
	185	pr ivate void configure Cache(Cach e cache, S tring prot otypeName)
	186	th rows Cache Exception
	187	{
	188	logg er.info("C onfiguring cache '" + cache.ge tName() + "' as '" + prototype Name + "'. ");
	189
	190	// l ook for th e prototyp e first fr om the roo t and then in the pr ototype di r
	191	Inpu tStream in Stream = g etClass(). getClassLo ader().get ResourceAs Stream(pro totypeName );
	192	if(i nStream == null)
	193	{
	194	String standardi zedName = "prototype /" + proto typeName + ".xml";
	195	inStre am = getCl ass().getC lassLoader ().getReso urceAsStre am(standar dizedName) ;
	196	if(inS tream == n ull)
	197	throw ne w CacheIni tializatio nException ("Unable t o access r esource '" + prototy peName + " ' to confi gure cache , also loo ked in '" + standard izedName + "'.");
	198	}
	199	conf igureCache (cache, in Stream);
	200	}
	201
	202	/* *
	203	* Takes an unconfigur ed cache a nd applies the confi guration f rom the in put stream .
	204	*
	205	* @param ca che
	206	* @param pr ototype
	207	* @throws C acheExcept ion
	208	* /
	209	pr ivate void configure Cache(Cach e cache, I nputStream prototype )
	210	th rows Cache Exception
	211	{
	212	logg er.info("C onfiguring cache '" + cache.ge tName() + "' as from prototype input str eam.");
	213
	214	if(p rototype = = null)
	215	throw new CacheI nitializat ionExcepti on("Unable to access resource prototype input stre am to conf igure cach e");
	216
	217	XMLD ecoder dec oder = new XMLDecode r(prototyp e);
	218	Cach eConfigura tionMement o memento = (CacheCo nfiguratio nMemento)d ecoder.rea dObject();
	219	deco der.close( );
	220
	221	conf igureCache (cache, me mento);
	222	}
	223
	224	/* *
	225	*
	226	* @param ca che
	227	* @param me mento
	228	* @throws C acheExcept ion
	229	* /
	230	pr ivate void configure Cache(Cach e cache, C acheConfig urationMem ento memen to)
	231	th rows Cache Exception
	232	{
	233	Evic tionStrate gyFactory evictionSt rategyFact ory = Evic tionStrate gyFactory. getSinglet on();
	234	// c reate and add the ev iction str ategies
	235	if(m emento.get EvictionSt rategyMeme ntoes() != null)
	236	{
	237	for(Ev ictionStra tegyMement o eviction StrategyMe mento : me mento.getE victionStr ategyMemen toes())
	238	{
	239	logger.i nfo("Creat ing evicti on strateg y '" + evi ctionStrat egyMemento .getName() + "'...") ;
	240	Eviction Strategy e victionStr ategy = ev ictionStra tegyFactor y.createEv ictionStra tegy(evict ionStrateg yMemento, cache.getE victionTim er());
	241	logger.i nfo("Evict ion strate gy '" + ev ictionStra tegyMement o.getName( ) + "' cre ated.");
	242	cache.ad dEvictionS trategy(ev ictionStra tegy);
	243	logger.i nfo("Evict ion strate gy '" + ev ictionStra tegyMement o.getName( ) + "' add ed to cach e '" + cac he.getName () + "'.") ;
	244	}
	245	}
	246	if(m emento.get RegionMeme ntoes() != null)
	247	{
	248	for(Re gionMement o regionMe mento : me mento.getR egionMemen toes())
	249	{
	250	logger.i nfo("Creat ing region '" + regi onMemento. getName() + "'...");
	251	Region r egion = ca che.create Region(reg ionMemento );
	252	logger.i nfo("Regio n '" + reg ionMemento .getName() + "' crea ted.");
	253	cache.ad dRegion(re gion);
	254	logger.i nfo("Regio n '" + reg ionMemento .getName() + "' adde d to cache '" + cach e.getName( ) + "'.");
	255	}
	256	}
	257	}
	258
	259	pr ivate Clas s<? extend s Cache> g etImplemen tingCacheC lass(URI l ocationUri )
	260	th rows Cache Initializa tionExcept ion
	261	{
	262	Stri ng protoco l = locati onUri.getS cheme();
	263
	264	Clas s<? extend s Cache> c acheClass = protocol CacheImple mentationM ap.getCach eClass(pro tocol);
	265
	266	if(c acheClass == null)
	267	throw new CacheI nitializat ionExcepti on("Unable to find a Cache imp lementatio n that sup ports the '" + proto col + "' p rotocol.") ;
	268
	269	retu rn cacheCl ass;
	270	}
	271
	272	pr ivate Clas s<? extend s CacheCon figurator> getImplem entingCach eConfigura torClass(U RI locatio nUri)
	273	th rows Cache Initializa tionExcept ion
	274	{
	275	Stri ng protoco l = locati onUri.getS cheme();
	276
	277	Clas s<? extend s CacheCon figurator> configura torClass = protocolC acheImplem entationMa p.getConfi guratorCla ss(protoco l);
	278
	279	if(c onfigurato rClass == null)
	280	throw new CacheI nitializat ionExcepti on("Unable to find a CacheConf igurator i mplementat ion that s upports th e '" + pro tocol + "' protocol. ");
	281
	282	retu rn configu ratorClass ;
	283	}
	284
	285	/* *
	286	* @param pr otocol
	287	* @param ca cheName
	288	* @param ca cheClass
	289	* @param ev ictionTime r
	290	* @throws C acheInitia lizationEx ception
	291	* /
	292	pr ivate Cach e createCa cheInstanc e(
	293	String cacheName ,
	294	Class< ? extends Cache> cac heClass,
	295	Class< ? extends CacheConfi gurator> c acheConfig uratorClas s,
	296	URI lo cationUri,
	297	Evicti onTimer ev ictionTime r)
	298	th rows Cache Initializa tionExcept ion
	299	{
	300	try
	301	{
	302	if(evi ctionTimer == null & & cacheCon figuratorC lass != nu ll)
	303	eviction Timer = cr eateDefaul tEvictionT imerImpl(c acheConfig uratorClas s);
	304
	305	Method factoryMe thod = cac heClass.ge tMethod("c reate", ne w Class[]{ String.cla ss, URI.cl ass, Evict ionTimer.c lass});
	306	// ass ure that t he factory method ac tually ret urns an in stance of the cache class
	307	if( ! cacheClass .isAssigna bleFrom(fa ctoryMetho d.getRetur nType()) )
	308	throw ne w CacheIni tializatio nException (
	309	"E rror creat ing the ca che realiz ation '" + cacheClas s.getName( ) + "." +
	310	"A ssure that the facto ry method 'create(St ring, URI, EvictionT imer)' exi sts, is ac cessible a nd returns an instan ce of '" + cacheClas s.getName( ) + "'.");
	311
	312	return (Cache)fa ctoryMetho d.invoke(n ull, new O bject[]{ca cheName, l ocationUri , eviction Timer});
	313	}
	314	catc h (Securit yException x)
	315	{
	316	logger .error(x);
	317	throw new CacheI nitializat ionExcepti on(
	318	"SecurityE xception c reating th e cache re alization '" + cache Class.getN ame() + ". " +
	319	"Assure th at the fac tory metho d 'create( String, UR I, Evictio nTimer)' e xists and is accessi ble");
	320	}
	321	catc h (Illegal ArgumentEx ception x)
	322	{
	323	logger .error(x);
	324	throw new CacheI nitializat ionExcepti on(
	325	"IllegalAr gumentExce ption crea ting the c ache reali zation '" + cacheCla ss.getName () + "." +
	326	"Assure th at the fac tory metho d 'create( String, UR I, Evictio nTimer)' e xists and is accessi ble");
	327	}
	328	catc h (NoSuchM ethodExcep tion x)
	329	{
	330	logger .error(x);
	331	throw new CacheI nitializat ionExcepti on(
	332	"NoSuchMet hodExcepti on creatin g the cach e realizat ion '" + c acheClass. getName() + "." +
	333	"Assure th at the fac tory metho d 'create( String, UR I, Evictio nTimer)' e xists and is accessi ble");
	334	}
	335	catc h (Illegal AccessExce ption x)
	336	{
	337	logger .error(x);
	338	throw new CacheI nitializat ionExcepti on(
	339	"IllegalAr gumentExce ption crea ting the c ache reali zation '" + cacheCla ss.getName () + "." +
	340	"Assure th at the fac tory metho d 'create( String, UR I, Evictio nTimer)' e xists and is accessi ble");
	341	}
	342	catc h (Invocat ionTargetE xception x )
	343	{
	344	logger .error(x);
	345	throw new CacheI nitializat ionExcepti on(
	346	"IllegalAr gumentExce ption crea ting the c ache reali zation '" + cacheCla ss.getName () + "." +
	347	"Assure th at the fac tory metho d 'create( String, UR I, Evictio nTimer)' e xists and is accessi ble");
	348	}
	349	catc h (Instant iationExce ption x)
	350	{
	351	logger .error(x);
	352	throw new CacheI nitializat ionExcepti on(
	353	"IllegalAr gumentExce ption crea ting the c ache reali zation '" + cacheCla ss.getName () + "." +
	354	"Assure th at the fac tory metho d 'create( String, UR I, Evictio nTimer)' e xists and is accessi ble");
	355	}
	356	}
	357
	358	/* *
	359	* @param pr otocol
	360	* @param ca cheName
	361	* @param ca cheClass
	362	* @param ev ictionTime r
	363	* @throws C acheInitia lizationEx ception
	364	* /
	365	pr ivate Cach e createCa cheInstanc e(
	366	CacheM emento cac heMemento,
	367	Class< ? extends Cache> cac heClass)
	368	th rows Cache Initializa tionExcept ion
	369	{
	370	logg er.info("C reating ca che '" + c acheMement o.getName( ) + "' fro m memento as type '" + cacheCl ass.getNam e() + "'." );
	371	try
	372	{
	373	Method factoryMe thod = cac heClass.ge tMethod("c reate", ne w Class[]{ CacheMemen to.class}) ;
	374	// ass ure that t he factory method ac tuall retu rns an ins tance of t he cache c lass
	375	if( ! cacheClass .isAssigna bleFrom(fa ctoryMetho d.getRetur nType()) )
	376	throw ne w CacheIni tializatio nException (
	377	"E rror creat ing the ca che realiz ation '" + cacheClas s.getName( ) + "." +
	378	"A ssure that the facto ry method 'create(St ring, URI, EvictionT imer)' exi sts, is ac cessible a nd returns an instan ce of '" + cacheClas s.getName( ) + "'.");
	379
	380	return (Cache)fa ctoryMetho d.invoke(n ull, new O bject[]{ca cheMemento });
	381	}
	382	catc h (Securit yException x)
	383	{
	384	logger .error(x);
	385	throw new CacheI nitializat ionExcepti on(
	386	"SecurityE xception c reating th e cache re alization '" + cache Class.getN ame() + ". " +
	387	"Assure th at the fac tory metho d 'create( CacheMemen to)' exist s and is a ccessible" );
	388	}
	389	catc h (Illegal ArgumentEx ception x)
	390	{
	391	logger .error(x);
	392	throw new CacheI nitializat ionExcepti on(
	393	"IllegalAr gumentExce ption crea ting the c ache reali zation '" + cacheCla ss.getName () + "." +
	394	"Assure th at the fac tory metho d 'create( CacheMemen to)' exist s and is a ccessible" );
	395	}
	396	catc h (NoSuchM ethodExcep tion x)
	397	{
	398	logger .error(x);
	399	throw new CacheI nitializat ionExcepti on(
	400	"NoSuchMet hodExcepti on creatin g the cach e realizat ion '" + c acheClass. getName() + "." +
	401	"Assure th at the fac tory metho d 'create( CacheMemen to)' exist s and is a ccessible" );
	402	}
	403	catc h (Illegal AccessExce ption x)
	404	{
	405	logger .error(x);
	406	throw new CacheI nitializat ionExcepti on(
	407	"IllegalAc cessExcept ion creati ng the cac he realiza tion '" + cacheClass .getName() + "." +
	408	"Assure th at the fac tory metho d 'create( CacheMemen to)' exist s and is a ccessible" );
	409	}
	410	catc h (Invocat ionTargetE xception x )
	411	{
	412	x.prin tStackTrac e();
	413	if(x.g etCause() != null)
	414	x.getCau se().print StackTrace ();
	415	logger .error(x);
	416	logger .error("CA USED BY .. .");
	417	logger .error(x.g etCause()) ;
	418	throw new CacheI nitializat ionExcepti on(
	419	"Invocatio nTargetExc eption cre ating the cache real ization '" + cacheCl ass.getNam e() + ". \ n" +
	420	"Underlyin g exceptio n is '" + x.getCause ().getMess age() + "' . \n" +
	421	"Assure th at the fac tory metho d 'create( CacheMemen to)' exist s and is a ccessible" );
	422	}
	423	}
	424
	425	// ========= ========== ========== ========== ========== ========== ========== ========== ========== ========== ========== ========== ====
	426	// Eviction Timer
	427	// ========= ========== ========== ========== ========== ========== ========== ========== ========== ========== ========== ========== ====
	428
	429	/* *
	430	*
	431	* @return
	432	* @throws I llegalAcce ssExceptio n
	433	* @throws I nstantiati onExceptio n
	434	* /
	435	pu blic Evict ionTimerIm pl createD efaultEvic tionTimerI mpl(Class< ? extends CacheConfi gurator> c onfigurato rClass)
	436	th rows Insta ntiationEx ception, I llegalAcce ssExceptio n
	437	{
	438	Cach eConfigura tor config urator = c onfigurato rClass.new Instance() ;
	439	try
	440	{
	441	return EvictionT imerImpl.c reate(conf igurator.g etEviction TimerSweep IntervalMa p());
	442	}
	443	catc h (Initial izationExc eption iX)
	444	{
	445	logger .error(iX) ;
	446	return null;
	447	}
	448	catc h (Invalid SweepSpeci fication i ssX)
	449	{
	450	logger .error(iss X);
	451	return null;
	452	}
	453	}
	454
	455	pu blic Evict ionTimerIm pl createE victionTim erImpl(Evi ctionTimer ImplMement o memento)
	456	{
	457	try
	458	{
	459	return EvictionT imerImpl.c reate( mem ento.getSw eepInterva lMap() );
	460	}
	461	catc h (Initial izationExc eption iX)
	462	{
	463	logger .error(iX) ;
	464	return null;
	465	}
	466	catc h (Invalid SweepSpeci fication i ssX)
	467	{
	468	logger .error(iss X);
	469	return null;
	470	}
	471	}
	472	}