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1 | patch_205_build_9.zip\Java\ImagingCommon\main\src\java\gov\va\med\imaging\facade\configuration | AbstractBaseFacadeConfiguration.java | Wed May 30 14:35:27 2018 UTC |
2 | patch_205_build_9.zip\Java\ImagingCommon\main\src\java\gov\va\med\imaging\facade\configuration | AbstractBaseFacadeConfiguration.java | Fri Jun 1 20:45:43 2018 UTC |
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1 | /** | |
2 | * | |
3 | Package: MAG - Vis tA Imaging | |
4 | WARNING: Per VHA D irective 2 004-038, t his routin e should n ot be modi fied. | |
5 | Date Cre ated: Jan 7, 2009 | |
6 | Site Nam e: Washin gton OI Fi eld Office , Silver S pring, MD | |
7 | Developer: PII | |
8 | Descript ion: | |
9 | ||
10 | ;; +-------- ---------- ---------- ---------- ---------- ---------- ---------- + | |
11 | ;; Property of the US Government . | |
12 | ;; No permis sion to co py or redi stribute t his softwa re is give n. | |
13 | ;; Use of un released v ersions of this soft ware requi res the us er | |
14 | ;; to execu te a writt en test ag reement wi th the Vis tA Imaging | |
15 | ;; Developm ent Office of the De partment o f Veterans Affairs, | |
16 | ;; telephon e (301) 73 4-0100. | |
17 | ;; | |
18 | ;; The Food and Drug A dministrat ion classi fies this software a s | |
19 | ;; a Class I I medical device. A s such, it may not b e changed | |
20 | ;; in any wa y. Modifi cations to this soft ware may r esult in a n | |
21 | ;; adulterat ed medical device un der 21CFR8 20, the us e of which | |
22 | ;; is consid ered to be a violati on of US F ederal Sta tutes. | |
23 | ;; +-------- ---------- ---------- ---------- ---------- ---------- ---------- + | |
24 | ||
25 | */ | |
26 | package go v.va.med.i maging.fac ade.config uration; | |
27 | ||
28 | import jav a.beans.XM LDecoder; | |
29 | import jav a.io.File; | |
30 | import jav a.io.FileI nputStream ; | |
31 | import jav a.io.FileN otFoundExc eption; | |
32 | import jav a.io.FileO utputStrea m; | |
33 | import jav a.io.IOExc eption; | |
34 | import jav a.lang.ref lect.Field ; | |
35 | import jav a.util.Arr ayList; | |
36 | import jav a.util.Lis t; | |
37 | ||
38 | import org .apache.lo gging.log4 j.LogManag er; | |
39 | import org .apache.lo gging.log4 j.Logger; | |
40 | ||
41 | import com .thoughtwo rks.xstrea m.XStream; | |
42 | ||
43 | /** | |
44 | * @author PII | |
45 | * | |
46 | */ | |
47 | public abs tract clas s Abstract BaseFacade Configurat ion | |
48 | { | |
49 | pr otected fi nal static Logger lo gger = | |
50 | LogM anager.get Logger(Abs tractBaseF acadeConfi guration.c lass); | |
51 | ||
52 | pr ivate bool ean dirty; | |
53 | ||
54 | /* * | |
55 | * Indicates if the co nfiguratio n has been updated o n disk and this in m emory conf iguration object may be | |
56 | * considere d dirty. T his doesn' t mean the configura tion has t o be refre shed, that is up to the develo per/usage | |
57 | * | |
58 | * @return | |
59 | * / | |
60 | pr otected bo olean isDi rty() { | |
61 | retu rn dirty; | |
62 | } | |
63 | ||
64 | pu blic void setDirty(b oolean dir ty) { | |
65 | this .dirty = d irty; | |
66 | } | |
67 | ||
68 | pr otected Lo gger getLo gger() | |
69 | { | |
70 | retu rn logger; | |
71 | } | |
72 | ||
73 | // private fi nal String configura tionFilena me; | |
74 | ||
75 | pu blic Abstr actBaseFac adeConfigu ration() | |
76 | { | |
77 | //th is.configu rationFile name = fil ename; | |
78 | } | |
79 | ||
80 | pu blic Abstr actBaseFac adeConfigu ration loa dConfigura tion() | |
81 | { | |
82 | Abst ractBaseFa cadeConfig uration co nfig = loa dConfigura tionFromFi le(); | |
83 | if(c onfig == n ull) | |
84 | { | |
85 | config = loadDef aultConfig uration(); | |
86 | config .storeConf iguration( ); | |
87 | } | |
88 | retu rn config; | |
89 | } | |
90 | ||
91 | ||
92 | pr ivate Abst ractBaseFa cadeConfig uration lo adConfigur ationFromF ile() | |
93 | { | |
94 | File InputStrea m inputStr eam = null ; | |
95 | try | |
96 | { | |
97 | File f ile = new File(getCo nfiguratio nFileName( )); | |
98 | if(fil e.exists() ) | |
99 | { | |
100 | try | |
101 | { | |
102 | inputStrea m = new Fi leInputStr eam(file); | |
103 | XStream xs tream = ge tXtream(); | |
104 | ||
105 | AbstractBa seFacadeCo nfiguratio n configur ation = | |
106 | (A bstractBas eFacadeCon figuration )xstream.f romXML(inp utStream); | |
107 | return con figuration ; | |
108 | } | |
109 | catch(co m.thoughtw orks.xstre am.convert ers.Conver sionExcept ion cX) | |
110 | { | |
111 | logger.deb ug(cX.getM essage()); | |
112 | try | |
113 | { | |
114 | in putStream. close(); | |
115 | in putStream = null; | |
116 | } | |
117 | catch(Exce ption ex) {} | |
118 | inputStrea m = new Fi leInputStr eam(file); | |
119 | XMLDecoder decoder = null; | |
120 | try | |
121 | { | |
122 | de coder = ne w XMLDecod er(new Fil eInputStre am(file.ge tAbsoluteP ath())); | |
123 | Ab stractBase FacadeConf iguration configurat ion = (Abs tractBaseF acadeConfi guration)d ecoder.rea dObject(); | |
124 | lo gger.info( "Loaded co nfiguratio n file [" + file.get AbsolutePa th() + "]" ); | |
125 | re turn confi guration; | |
126 | } | |
127 | finally | |
128 | { | |
129 | if (decoder ! = null) | |
130 | deco der.close( ); | |
131 | } | |
132 | } | |
133 | } | |
134 | else | |
135 | { | |
136 | logger.e rror("File [" + file .getAbsolu tePath() + "] does n ot exist") ; | |
137 | return n ull; | |
138 | } | |
139 | } | |
140 | catc h(FileNotF oundExcept ion fnfX) | |
141 | { | |
142 | logger .error("Er ror readin g configur ation, " + fnfX.getM essage(), fnfX); | |
143 | return null; | |
144 | } | |
145 | fina lly | |
146 | { | |
147 | if(inp utStream ! = null) | |
148 | { | |
149 | try {inp utStream.c lose();} | |
150 | catch(Ex ception ex ) {} | |
151 | } | |
152 | } | |
153 | } | |
154 | ||
155 | pu blic abstr act Abstra ctBaseFaca deConfigur ation load DefaultCon figuration (); | |
156 | ||
157 | ||
158 | pu blic synch ronized vo id storeCo nfiguratio n() | |
159 | { | |
160 | File OutputStre am output = null; | |
161 | try | |
162 | { | |
163 | String filename = getConfi gurationFi leName(); | |
164 | output = new Fil eOutputStr eam(filena me, false) ; | |
165 | XStrea m xstream = getXtrea m(); | |
166 | xstrea m.toXML(th is, output ); | |
167 | logger .info("Sto red config uration fi le [" + fi lename + " ]"); | |
168 | } | |
169 | catc h(IOExcept ion ioX) | |
170 | { | |
171 | logger .error("Er ror storin g configur ation, " + ioX.getMe ssage(), i oX); | |
172 | } | |
173 | fina lly | |
174 | { | |
175 | if(out put != nul l) | |
176 | { | |
177 | try {out put.close( );} | |
178 | catch(Ex ception ex ) {} | |
179 | } | |
180 | } | |
181 | } | |
182 | ||
183 | pr ivate XStr eam getXtr eam() | |
184 | { | |
185 | XStr eam xstrea m = new XS tream(); | |
186 | Stri ng [] omit tedFields = getOmitt edFields() ; | |
187 | if(o mittedFiel ds != null && omitte dFields.le ngth > 0) | |
188 | { | |
189 | for(St ring omitt edField : omittedFie lds) | |
190 | { | |
191 | xstream. omitField( getClass() , omittedF ield); | |
192 | } | |
193 | } | |
194 | ||
195 | xstr eam.regist erConverte r(new Encr yptedConfi gurationPr opertyStri ngSingleVa lueConvert er()); | |
196 | retu rn xstream ; | |
197 | } | |
198 | ||
199 | /* * | |
200 | * Deletes t he configu ration fil e from dis k (does no t affect c onfigurati ons in mem ory). | |
201 | * This meth od is prim arily used for testi ng purpose s, there a re not any real reas ons in pro duction wh y a config file | |
202 | * should be deleted. | |
203 | * / | |
204 | pu blic synch ronized bo olean dele teConfigur ation() | |
205 | { | |
206 | Stri ng filenam e = getCon figuration FileName() ; | |
207 | logg er.info("D eleting co nfiguratio n file '" + filename + "'."); | |
208 | File file = ne w File(fil ename); | |
209 | if(f ile.exists ()) | |
210 | { | |
211 | if(!fi le.delete( )) | |
212 | { | |
213 | logger.e rror("Cann ot delete file."); | |
214 | return f alse; | |
215 | } | |
216 | } | |
217 | retu rn true; | |
218 | } | |
219 | ||
220 | /* * | |
221 | * Get the c onfigurati on directo ry. | |
222 | * Usually, derived cl asses do n ot need to access th e director y | |
223 | * and just rely on th e storeCon figuration )( and loa dConfigura tion() | |
224 | * methods. This meth od is prov ided for e xceptional cases. | |
225 | * / | |
226 | pr ivate File getConfig urationDir ectory() | |
227 | { | |
228 | Stri ng configu rationDire ctoryName = System.g etenv("vix config"); | |
229 | if(c onfigurati onDirector yName == n ull) | |
230 | config urationDir ectoryName = System. getPropert y("user.ho me"); | |
231 | if(c onfigurati onDirector yName == n ull) | |
232 | config urationDir ectoryName = "/"; | |
233 | ||
234 | File configura tionDirect ory = new File(confi gurationDi rectoryNam e); | |
235 | if(! configura tionDirect ory.exists ()) | |
236 | config urationDir ectory.mkd irs(); // make the direct ories if t hey don't exist | |
237 | ||
238 | retu rn configu rationDire ctory; | |
239 | } | |
240 | ||
241 | /* * | |
242 | * Get a ref erence to the config uration fi le. | |
243 | * This meth od will cr eate the c onfigurati on and par ent direct ories if t hey do not exist. | |
244 | * If the Pr ovider doe s not have a configu ration fil e then thi s method r eturns nul l. | |
245 | * @return | |
246 | * @throws I OException | |
247 | * / | |
248 | /* | |
249 | pr ivate File getConfig urationFil e() | |
250 | th rows IOExc eption | |
251 | { | |
252 | Stri ng configu rationFile Name = get Configurat ionFileNam e(); | |
253 | if( configurat ionFileNam e == null) | |
254 | return null; | |
255 | File configura tionFile = new File( configurat ionFileNam e); | |
256 | if(! configura tionFile.e xists()) | |
257 | config urationFil e.createNe wFile(); | |
258 | ||
259 | retu rn configu rationFile ; | |
260 | }* / | |
261 | ||
262 | /* * | |
263 | * Build a f ilename in the stand ardized fo rmat from the | |
264 | * provider name and v ersion. A Provider that does not | |
265 | * have any persistent configura tion must override t his | |
266 | * method to return nu ll. | |
267 | * This meth od will as sure that the parent directory exists | |
268 | * before re turning. It will NO T create t he configu ration | |
269 | * file if i t does not exist. | |
270 | * | |
271 | * The prefe rred store locations are (in o rder): | |
272 | * 1.) The d irectory o f the VIX configurat ion | |
273 | * 2.) The u ser home d irectory | |
274 | * 3.) The r oot direct ory | |
275 | * | |
276 | * @return | |
277 | * / | |
278 | pr ivate Stri ng getConf igurationF ileName() | |
279 | { | |
280 | File configura tionDirect ory = getC onfigurati onDirector y(); | |
281 | retu rn configu rationDire ctory.getA bsolutePat h() + "/" + this.get Class().ge tSimpleNam e() + ".co nfig"; | |
282 | } | |
283 | ||
284 | /* * | |
285 | * Override this metho d if you w ould like to have fi elds omitt ed from th e XML outp ut. Any fi eld name l isted here will not be include d | |
286 | * when this configura tion objec t is writt en to disk but it st ill can be read from disk if i t exists i n the XML | |
287 | * @return | |
288 | * / | |
289 | pr ivate Stri ng [] getO mittedFiel ds() | |
290 | { | |
291 | List <String> o mittedFiel ds = new A rrayList<S tring>(); | |
292 | Clas s<?> clazz = this.ge tClass(); | |
293 | ||
294 | Fiel d [] field s = clazz. getDeclare dFields(); | |
295 | ||
296 | //Fi eld [] fie lds = claz z.getField s(); | |
297 | for( Field fiel d : fields ) | |
298 | { | |
299 | if(fie ld.isAnnot ationPrese nt(HiddenC onfigurati onField.cl ass)) | |
300 | { | |
301 | omittedF ields.add( field.getN ame()); | |
302 | } | |
303 | else i f(field.is Annotation Present(Hi ddenString Configurat ionField.c lass)) | |
304 | { | |
305 | if(isStr ingFieldDe faultValue (field)) | |
306 | { | |
307 | omittedFie lds.add(fi eld.getNam e()); | |
308 | } | |
309 | } | |
310 | else i f(field.is Annotation Present(Hi ddenBoolea nConfigura tionField. class)) | |
311 | { | |
312 | if(isBoo leanFieldD efaultValu e(field)) | |
313 | omittedFie lds.add(fi eld.getNam e()); | |
314 | } | |
315 | else i f(field.is Annotation Present(Hi ddenIntCon figuration Field.clas s)) | |
316 | { | |
317 | if(isInt FieldDefau ltValue(fi eld)) | |
318 | omittedFie lds.add(fi eld.getNam e()); | |
319 | } | |
320 | } | |
321 | retu rn omitted Fields.toA rray(new S tring[omit tedFields. size()]); | |
322 | } | |
323 | ||
324 | pr ivate bool ean isIntF ieldDefaul tValue(Fie ld field) | |
325 | { | |
326 | try | |
327 | { | |
328 | field. setAccessi ble(true); | |
329 | int va lue = fiel d.getInt(t his); | |
330 | return value == 0; | |
331 | } | |
332 | catc h (Illegal ArgumentEx ception e) | |
333 | { | |
334 | logger .error("Il legalArgum entExcepti on reading property value, " + e.getMess age()); | |
335 | } | |
336 | catc h (Illegal AccessExce ption e) | |
337 | { | |
338 | logger .error("Il legalAcces sException reading p roperty va lue, " + e .getMessag e()); | |
339 | } | |
340 | retu rn false; | |
341 | } | |
342 | ||
343 | pr ivate bool ean isBool eanFieldDe faultValue (Field fie ld) | |
344 | { | |
345 | try | |
346 | { | |
347 | field. setAccessi ble(true); | |
348 | boolea n value = field.getB oolean(thi s); | |
349 | return value == false; | |
350 | } | |
351 | catc h (Illegal ArgumentEx ception e) | |
352 | { | |
353 | logger .error("Il legalArgum entExcepti on reading property value, " + e.getMess age()); | |
354 | } | |
355 | catc h (Illegal AccessExce ption e) | |
356 | { | |
357 | logger .error("Il legalAcces sException reading p roperty va lue, " + e .getMessag e()); | |
358 | } | |
359 | retu rn false; | |
360 | } | |
361 | ||
362 | pr ivate bool ean isStri ngFieldDef aultValue( Field fiel d) | |
363 | { | |
364 | try | |
365 | { | |
366 | field. setAccessi ble(true); | |
367 | Object value = f ield.get(t his); | |
368 | return value == null; | |
369 | } | |
370 | catc h (Illegal ArgumentEx ception e) | |
371 | { | |
372 | logger .error("Il legalArgum entExcepti on reading property value, " + e.getMess age()); | |
373 | } | |
374 | catc h (Illegal AccessExce ption e) | |
375 | { | |
376 | logger .error("Il legalAcces sException reading p roperty va lue, " + e .getMessag e()); | |
377 | } | |
378 | retu rn false; | |
379 | } | |
380 | } |
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