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Revision 9080

Added by Jing Tao almost 10 years ago

Add the code to check a system metadata having the missing obsolescence field rather than to modify system metadata.

View differences:

test/edu/ucsb/nceas/metacat/dataone/SIDTest.java
142 142 
        SystemMetadata p1Sys = new SystemMetadata();
143 143 
	    p1Sys.setIdentifier(p1);
144 144 
	    p1Sys.setSeriesId(s1);
145 
	    p1Sys.setDateUploaded(new Date(100));
145 146
146 147 
	    SystemMetadata p2Sys = new SystemMetadata();
147 148 
        p2Sys.setIdentifier(p2);
148 149 
        p2Sys.setSeriesId(s1);
149 150 
        p2Sys.setObsoletes(p1);
150 151 
        p2Sys.setObsoletedBy(p3);
152 
        p2Sys.setDateUploaded(new Date(200));
151 153
152 154 
        SystemMetadata p3Sys = new SystemMetadata();
153 155 
        p3Sys.setIdentifier(p3);
......
219 221 
	}
220 222
221 223
224 
	/*
225 
	 * Decide if a system metadata object missing a obsoletes or obsoletedBy fields:
226 
	 * 1. The system metadata object has both "oboletes" and "obsoletedBy" fields.
227 
     * 2. If a system metadata object misses "oboletes" field, another system metadata object whose "obsoletedBy" fields points to the identifier doesn't exist.
228 
    *  3. If a system metadata object misses "oboletedBy" field, another system metadata object whose "obsoletes" fields points to the identifier doesn't exist.
229 
	 */
230 
	private boolean hasMissingObsolescenceFields(SystemMetadata targetSysmeta, Vector<SystemMetadata> chain) {
231 
	    boolean has = false;
232 
	    if(targetSysmeta != null) {
233 
            if (targetSysmeta.getObsoletes() == null && targetSysmeta.getObsoletedBy() == null) {
234 
                Identifier obsoletes = getRelatedIdentifier(targetSysmeta.getIdentifier(), OBSOLETES, chain);
235 
                if(obsoletes != null) {
236 
                    has = true;
237
238 
                } else {
239 
                    Identifier obsoleted = getRelatedIdentifier(targetSysmeta.getIdentifier(), OBSOLETEDBY, chain);
240 
                    if(obsoleted != null) {
241 
                        has = true;
242 
                    }
243 
                }
244
245 
            } else if (targetSysmeta.getObsoletes() != null && targetSysmeta.getObsoletedBy() == null) {
246 
                Identifier obsoleted = getRelatedIdentifier(targetSysmeta.getIdentifier(), OBSOLETEDBY, chain);
247 
                if(obsoleted != null) {
248 
                    has = true;
249 
                }
250
251 
            } else if (targetSysmeta.getObsoletes() == null && targetSysmeta.getObsoletedBy() != null) {
252 
                Identifier obsoletes = getRelatedIdentifier(targetSysmeta.getIdentifier(), OBSOLETES, chain);
253 
                if(obsoletes != null) {
254 
                    has = true;
255 
                }
256 
            }
257 
        }
258 
	    return has;
259 
	}
260
222 261 
	/**
223 262 
	 * Get the head version of the chain
224 263 
	 * @param sid
......
228 267 
	    Identifier pid = null;
229 268 
	    Vector<SystemMetadata> sidChain = new Vector<SystemMetadata>();
230 269 
	    int noObsoletedByCount =0;
270 
	    boolean hasMissingObsolescenceFields = false;
231 271 
	    if(chain != null) {
232 272 
	        for(SystemMetadata sysmeta : chain) {
233 273 
	            if(sysmeta.getSeriesId() != null && sysmeta.getSeriesId().equals(sid)) {
234 
	                decorateSystemMetadata(sysmeta, chain);
274 
	                //decorateSystemMetadata(sysmeta, chain);
235 275 
	                /*System.out.println("identifier "+sysmeta.getIdentifier().getValue()+" :");
236 276 
	                if(sysmeta.getObsoletes() == null) {
237 277 
	                    System.out.println("obsolets "+sysmeta.getObsoletes());
......
243 283 
	                } else {
244 284 
	                    System.out.println("obsoletedBy "+sysmeta.getObsoletedBy().getValue());
245 285 
	                }*/
286 
	                if(!hasMissingObsolescenceFields) {
287 
	                    if(hasMissingObsolescenceFields(sysmeta, chain)) {
288 
	                        hasMissingObsolescenceFields = true;
289 
	                    }
290 
	                }
246 291
247 292 
	                if(sysmeta.getObsoletedBy() == null) {
248 293 
	                    pid = sysmeta.getIdentifier();
......
253 298 
	        }
254 299 
	    }
255 300
256
257 
	    if(noObsoletedByCount == 1) {
258 
	       //rule 1 . If there is only one object having NULL value in the chain, return the value
259 
	        System.out.println("rule 1");
260 
	        return pid;
261 
	    } else if (noObsoletedByCount > 1 ) {
262 
	        // rule 2. If there is more than one object having NULL value in the chain, return last dateUploaded
263 
	        System.out.println("rule 2");
301 
	    if(hasMissingObsolescenceFields) {
302 
	        System.out.println("It has an object whose system metadata has missing obsoletes or obsoletedBy field.");
264 303 
	        Collections.sort(sidChain, new SystemMetadataDateUploadedComparator());
265 
	        pid =sidChain.lastElement().getIdentifier();
266
267 
	    } else if (noObsoletedByCount == 0) {
268 
	        // all pids were obsoleted
269 
	        for(SystemMetadata sysmeta : sidChain) {
270 
	            //System.out.println("=== the pid in system metadata "+sysmeta.getIdentifier().getValue());
271 
	            Identifier obsoletedBy = sysmeta.getObsoletedBy();
272 
	            SystemMetadata sysOfObsoletedBy = getSystemMetadata(obsoletedBy, chain);
273 
	            if(sysOfObsoletedBy == null) {
274 
	                //Rule 4 We have a obsoletedBy id without system metadata. So we can't decide if a different sid exists. we have to sort it.
275 
	                System.out.println("rule 4");
276 
	                Collections.sort(sidChain, new SystemMetadataDateUploadedComparator());
277 
	                pid = sidChain.lastElement().getIdentifier();
278 
	                break;
279 
	            } else {
280 
	                Identifier sidOfObsoletedBy = sysOfObsoletedBy.getSeriesId();
281 
	                if(sidOfObsoletedBy != null && !sidOfObsoletedBy.equals(sid)) {
282 
	                    //rule 3, if everything in {S1} is obsoleted, then select object that is obsoleted by another object that does not have the same SID
283 
	                    System.out.println("rule 3-1 (close with another sid "+sidOfObsoletedBy.getValue()+")");
284 
	                    pid = sysmeta.getIdentifier();
285 
	                    break;
286 
	                } else if (sidOfObsoletedBy == null ) {
287 
	                    //rule 3, If everything in {S1} is obsoleted, then select object that is obsoleted by another object that does not have the same SID (this case, no sid)
288 
	                    System.out.println("rule 3-2 (close without sid");
289 
	                    pid = sysmeta.getIdentifier();
290 
	                    break;
291 
	                }
292 
	            }
293
294 
	        }
304 
            pid =sidChain.lastElement().getIdentifier();
305 
	    } else {
306 
	        if(noObsoletedByCount == 1) {
307 
	            //rule 1 . If there is only one object having NULL value in the chain, return the value
308 
	             System.out.println("rule 1");
309 
	             return pid;
310 
	         } else if (noObsoletedByCount > 1 ) {
311 
	             // rule 2. If there is more than one object having NULL value in the chain, return last dateUploaded
312 
	             System.out.println("rule 2");
313 
	             Collections.sort(sidChain, new SystemMetadataDateUploadedComparator());
314 
	             pid =sidChain.lastElement().getIdentifier();
315
316 
	         } else if (noObsoletedByCount == 0) {
317 
	             // all pids were obsoleted
318 
	             for(SystemMetadata sysmeta : sidChain) {
319 
	                 //System.out.println("=== the pid in system metadata "+sysmeta.getIdentifier().getValue());
320 
	                 Identifier obsoletedBy = sysmeta.getObsoletedBy();
321 
	                 SystemMetadata sysOfObsoletedBy = getSystemMetadata(obsoletedBy, chain);
322 
	                 if(sysOfObsoletedBy == null) {
323 
	                     //Rule 4 We have a obsoletedBy id without system metadata. So we can't decide if a different sid exists. we have to sort it.
324 
	                     System.out.println("rule 4");
325 
	                     Collections.sort(sidChain, new SystemMetadataDateUploadedComparator());
326 
	                     pid = sidChain.lastElement().getIdentifier();
327 
	                     break;
328 
	                 } else {
329 
	                     Identifier sidOfObsoletedBy = sysOfObsoletedBy.getSeriesId();
330 
	                     if(sidOfObsoletedBy != null && !sidOfObsoletedBy.equals(sid)) {
331 
	                         //rule 3, if everything in {S1} is obsoleted, then select object that is obsoleted by another object that does not have the same SID
332 
	                         System.out.println("rule 3-1 (close with another sid "+sidOfObsoletedBy.getValue()+")");
333 
	                         pid = sysmeta.getIdentifier();
334 
	                         break;
335 
	                     } else if (sidOfObsoletedBy == null ) {
336 
	                         //rule 3, If everything in {S1} is obsoleted, then select object that is obsoleted by another object that does not have the same SID (this case, no sid)
337 
	                         System.out.println("rule 3-2 (close without sid");
338 
	                         pid = sysmeta.getIdentifier();
339 
	                         break;
340 
	                     }
341 
	                 }
342
343 
	             }
344 
	         }
295 345 
	    }
346
296 347 
	    return pid;
297 348 
	}
298 349

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