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Revision 6139

Added by Chris Jones over 13 years ago

Updated CNCoreImpl to implement listFormats() and getFormat(), and changed calls to ObjectFormatCache in IdentifierManager, MetacatHandler to call getInstance(). Removed the ObjectFormatService registration from MetaCatServlet since it is replaced by CNCoreImpl.

View differences:

src/edu/ucsb/nceas/metacat/MetaCatServlet.java
59 59
import edu.ucsb.nceas.metacat.properties.PropertyService;
60 60
import edu.ucsb.nceas.metacat.properties.SkinPropertyService;
61 61
import edu.ucsb.nceas.metacat.replication.ReplicationService;
62
import edu.ucsb.nceas.metacat.service.ObjectFormatService;
63 62
import edu.ucsb.nceas.metacat.service.ServiceService;
64 63
import edu.ucsb.nceas.metacat.service.SessionService;
65 64
import edu.ucsb.nceas.metacat.service.XMLSchemaService;
......
344 343
			// register the XML schema service
345 344
			ServiceService.registerService("XMLSchemaService", XMLSchemaService.getInstance());
346 345
			
347
			// register the object format service
348
      ServiceService.registerService("ObjectFormatService", ObjectFormatService.getInstance());
349

  
350 346
			// check if eml201 document were corrected or not. if not, correct eml201 documents.
351 347
			// Before Metacat 1.8.1, metacat uses tag RELEASE_EML_2_0_1_UPDATE_6 as eml
352 348
			// schema, which accidentily points to wrong version of eml-resource.xsd.
src/edu/ucsb/nceas/metacat/MetacatHandler.java
3581 3581
      
3582 3582
      // set the object format, fall back to defaults
3583 3583
      try {
3584
	      format = ObjectFormatCache.getFormat(doctype);
3584
	      format = ObjectFormatCache.getInstance().getFormat(doctype);
3585 3585

  
3586 3586
      } catch (NotFound nfe) {
3587 3587
        
3588 3588
        try {
3589 3589
        	// format is not registered, use default
3590 3590
	        if (doctype.trim().equals("BIN")) {
3591
	        	format = ObjectFormatCache.getFormat("application/octet-stream");
3591
	        	format = ObjectFormatCache.getInstance().getFormat("application/octet-stream");
3592 3592
	        
3593 3593
	        } else {
3594
	        	format = ObjectFormatCache.getFormat("text/plain");
3594
	        	format = ObjectFormatCache.getInstance().getFormat("text/plain");
3595 3595
	        }
3596 3596
        
3597 3597
        } catch (NotFound nf) {
......
3607 3607
      
3608 3608
      // further parse EML documents to get data object format,
3609 3609
      // describes and describedBy information
3610
      if ( format == ObjectFormatCache.getFormat("eml://ecoinformatics.org/eml-2.0.0") ||
3611
           format == ObjectFormatCache.getFormat("eml://ecoinformatics.org/eml-2.0.1") ||
3612
           format == ObjectFormatCache.getFormat("eml://ecoinformatics.org/eml-2.1.0") ||
3613
           format == ObjectFormatCache.getFormat("eml://ecoinformatics.org/eml-2.1.1") ) {
3610
      if ( format == ObjectFormatCache.getInstance().getFormat("eml://ecoinformatics.org/eml-2.0.0") ||
3611
           format == ObjectFormatCache.getInstance().getFormat("eml://ecoinformatics.org/eml-2.0.1") ||
3612
           format == ObjectFormatCache.getInstance().getFormat("eml://ecoinformatics.org/eml-2.1.0") ||
3613
           format == ObjectFormatCache.getInstance().getFormat("eml://ecoinformatics.org/eml-2.1.1") ) {
3614 3614
        
3615 3615
        try {
3616 3616
        	
......
3631 3631
            // default to binary
3632 3632
            if (dataDocMimeType == null) {
3633 3633
                dataDocMimeType = 
3634
                	ObjectFormatCache.getFormat("application/octet-stream").getFmtid().getValue();
3634
                	ObjectFormatCache.getInstance().getFormat("application/octet-stream").getFmtid().getValue();
3635 3635
            }
3636 3636
            String dataDocLocalId = "";
3637 3637
            logMetacat.debug("Data local ID: " + dataDocLocalId);
......
3677 3677
                      
3678 3678
                      // set object format
3679 3679
                      logMetacat.debug("Updating system metadata for " + dataGuid.getValue() + " to " + dataDocMimeType);
3680
                      ObjectFormat f = ObjectFormatCache.getFormat(dataDocMimeType);
3680
                      ObjectFormat f = ObjectFormatCache.getInstance().getFormat(dataDocMimeType);
3681 3681
                      if (f == null) {
3682
                    	  f = ObjectFormatCache.getFormat("application/octet-stream");
3682
                    	  f = ObjectFormatCache.getInstance().getFormat("application/octet-stream");
3683 3683
                      }
3684 3684
                      dataSysMeta.setObjectFormat(f);
3685 3685
                  
src/edu/ucsb/nceas/metacat/dataone/CNCoreImpl.java
22 22
 */
23 23
package edu.ucsb.nceas.metacat.dataone;
24 24

  
25
import java.io.ByteArrayInputStream;
26
import java.io.IOException;
25 27
import java.io.InputStream;
28
import java.sql.SQLException;
26 29
import java.util.Date;
30
import java.util.HashMap;
27 31

  
28 32
import org.apache.log4j.Logger;
33
import org.dataone.cn.batch.utils.TypeMarshaller;
29 34
import org.dataone.service.cn.CNCore;
30 35
import org.dataone.service.exceptions.IdentifierNotUnique;
31 36
import org.dataone.service.exceptions.InsufficientResources;
......
46 51
import org.dataone.service.types.ObjectFormatList;
47 52
import org.dataone.service.types.Session;
48 53
import org.dataone.service.types.SystemMetadata;
54
import org.jibx.runtime.JiBXException;
49 55

  
56
import edu.ucsb.nceas.metacat.DBUtil;
57
import edu.ucsb.nceas.metacat.DocumentImpl;
50 58
import edu.ucsb.nceas.metacat.EventLog;
51 59
import edu.ucsb.nceas.metacat.IdentifierManager;
60
import edu.ucsb.nceas.metacat.McdbException;
61
import edu.ucsb.nceas.metacat.properties.PropertyService;
52 62
import edu.ucsb.nceas.metacat.replication.ForceReplicationSystemMetadataHandler;
63
import edu.ucsb.nceas.utilities.PropertyNotFoundException;
53 64

  
54 65
/**
55 66
 * 
......
59 70
 */
60 71
public class CNCoreImpl implements CNCore
61 72
{
62
    private static CNCoreImpl instance = null;
73
  private static CNCoreImpl instance = null;
63 74

  
64
    private Logger logMetacat = null;
65
        
66
    /**
67
     * singleton accessor
68
     */
69
    public static CNCoreImpl getInstance() 
70
    {
71
      if (instance == null) {
72
        instance = new CNCoreImpl();
73
      }
74
      
75
      return instance;
75
  private Logger logMetacat = null;
76
  
77
  /* The scope of the object formats docid used as the metacat identifier */
78
  private final String OBJECT_FORMAT_DOCID = "OBJECT_FORMAT_LIST.1";
79
  
80
  /* The revision of the object formats document */
81
  private int rev;
82
  
83
  /* The separator of the object formats document */
84
  private String separator = ".";
85

  
86
  /* The accession number of the object formats document */
87
  private String accNumber = null;
88

  
89
  /* The list of object formats */
90
  private ObjectFormatList objectFormatList = null;
91
  
92
  /* the searchable map of object formats */
93
  private static HashMap<String, ObjectFormat> objectFormatMap;
94
  
95
  /**
96
   * singleton accessor
97
   */
98
  public static CNCoreImpl getInstance() 
99
  {
100
    if (instance == null) {
101
      instance = new CNCoreImpl();
76 102
    }
77 103
    
78
    /**
79
     * Constructor, private for singleton access
80
     */
81
    private CNCoreImpl() {
82
        logMetacat = Logger.getLogger(CNCoreImpl.class);
104
    return instance;
105
  }
106
  
107
  /**
108
   * Constructor, private for singleton access
109
   */
110
  private CNCoreImpl() {
111
    logMetacat = Logger.getLogger(CNCoreImpl.class);
83 112
        
84
    }
113
  }
85 114
    
86 115
    /**
87 116
     * register System Metadata without data/metadata object
88 117
     */
89
    @Override
90
    public boolean registerSystemMetaData(Session session, Identifier guid,
91
            SystemMetadata sysmeta) throws NotImplemented, NotAuthorized,
92
            ServiceFailure, InvalidRequest {
93
        logMetacat.debug("Starting CrudService.create()...");
94
        
95
        // TODO: control who can call this?
96
        if (session == null) {
97
            //TODO: many of the thrown exceptions do not use the correct error codes
98
            //check these against the docs and correct them
99
            throw new NotAuthorized("4861", "No Session - could not authorize to registration." +
100
                    "  If you are not logged in, please do so and retry the request.");
101
        }
102
        
103
        // verify that guid == SystemMetadata.getIdentifier()
104
        logMetacat.debug("Comparing guid|sysmeta_guid: " + guid.getValue() + "|" + sysmeta.getIdentifier().getValue());
105
        if (!guid.getValue().equals(sysmeta.getIdentifier().getValue())) {
106
            throw new InvalidRequest("4863", 
107
                "GUID in method call (" + guid.getValue() + ") does not match GUID in system metadata (" +
108
                sysmeta.getIdentifier().getValue() + ").");
109
        }
118
	  @Override
119
    public boolean registerSystemMetadata(Session session, Identifier guid,
120
      SystemMetadata sysmeta) throws NotImplemented, NotAuthorized,
121
      ServiceFailure, InvalidRequest, InvalidSystemMetadata {
122
      
123
	  	// TODO: control who can call this?
124
      if (session == null) {
125
          //TODO: many of the thrown exceptions do not use the correct error codes
126
          //check these against the docs and correct them
127
          throw new NotAuthorized("4861", "No Session - could not authorize to registration." +
128
                  "  If you are not logged in, please do so and retry the request.");
129
      }
130
      
131
      // verify that guid == SystemMetadata.getIdentifier()
132
      logMetacat.debug("Comparing guid|sysmeta_guid: " + guid.getValue() + "|" + sysmeta.getIdentifier().getValue());
133
      if (!guid.getValue().equals(sysmeta.getIdentifier().getValue())) {
134
          throw new InvalidRequest("4863", 
135
              "GUID in method call (" + guid.getValue() + ") does not match GUID in system metadata (" +
136
              sysmeta.getIdentifier().getValue() + ").");
137
      }
110 138

  
111
        logMetacat.debug("Checking if identifier exists...");
112
        // Check that the identifier does not already exist
113
        IdentifierManager im = IdentifierManager.getInstance();
114
        if (im.identifierExists(guid.getValue())) {
115
            throw new InvalidRequest("4863", 
116
                "GUID is already in use by an existing object.");
117
        }
139
      logMetacat.debug("Checking if identifier exists...");
140
      // Check that the identifier does not already exist
141
      IdentifierManager im = IdentifierManager.getInstance();
142
      if (im.identifierExists(guid.getValue())) {
143
          throw new InvalidRequest("4863", 
144
              "GUID is already in use by an existing object.");
145
      }
118 146

  
119
        // insert the system metadata into the object store
120
        logMetacat.debug("Starting to insert SystemMetadata...");
121
        sysmeta.setDateSysMetadataModified(new Date());
122
        try {
123
			IdentifierManager.getInstance().createSystemMetadata(sysmeta);
124
			IdentifierManager.getInstance().updateSystemMetadata(sysmeta);
125
			// force replication of this record
126
			ForceReplicationSystemMetadataHandler forceReplication = new ForceReplicationSystemMetadataHandler(guid.getValue(), null);
127
		} catch (Exception e) {
128
            throw new ServiceFailure("4862", "Error inserting system metadata: " + e.getClass() + ": " + e.getMessage());
129
		}
130
        
131
        logMetacat.debug("Returning from registerSystemMetadata");
132
        EventLog.getInstance().log(null, session.getSubject().getValue(), guid.getValue(), "registerSystemMetadata");
133
        return true;
147
      // insert the system metadata into the object store
148
      logMetacat.debug("Starting to insert SystemMetadata...");
149
      sysmeta.setDateSysMetadataModified(new Date());
150
      try {
151
		    IdentifierManager.getInstance().createSystemMetadata(sysmeta);
152
		    IdentifierManager.getInstance().updateSystemMetadata(sysmeta);
153
		    // force replication of this record
154
		    ForceReplicationSystemMetadataHandler forceReplication = 
155
		    	new ForceReplicationSystemMetadataHandler(guid.getValue(), null);
156
	    } catch (Exception e) {
157
          throw new ServiceFailure("4862", "Error inserting system metadata: " + e.getClass() + ": " + e.getMessage());
158
	    }
159
      
160
      logMetacat.debug("Returning from registerSystemMetadata");
161
      EventLog.getInstance().log(null, session.getSubject().getValue(), guid.getValue(), "registerSystemMetadata");
162
      return true;
163

  
134 164
    }
135 165

  
136

  
137 166
  @Override
138 167
  public Log getLogRecords(Session arg0, Date arg1, Date arg2,
139 168
    Event arg3) throws InvalidToken, InvalidRequest, ServiceFailure,
140 169
    NotAuthorized, NotImplemented {
141 170
  	  // TODO Auto-generated method stub
142 171
  	  return null;
143
    }
144
   @Override
145
	 public ObjectFormat getFormat(ObjectFormatIdentifier arg0) 
146
	   throws InvalidRequest, ServiceFailure, NotFound, InsufficientResources, 
147
	   NotImplemented {
148
		 // TODO Auto-generated method stub
149
		 return null;
172
  }
173
  
174
  /**
175
   * Return the object format based on the given object format identifier
176
   * @param fmtid - the object format identifier to look up
177
   * @return objectFormat - the desired object format
178
   */
179
  @Override
180
	public ObjectFormat getFormat(ObjectFormatIdentifier fmtid) 
181
	  throws InvalidRequest, ServiceFailure, NotFound, InsufficientResources, 
182
	  NotImplemented {
183
    
184
  	logMetacat.debug("CNCoreImpl.getFormat() called.");
185
  	
186
    ObjectFormat objectFormat = null;
187
    
188
    // look up the format in the object format map
189
	    objectFormat = getObjectFormatMap().get(fmtid.getValue());
190
	    
191
	    // refresh the object format list if the format is null
192
	    if ( objectFormat == null ) {
193
	    	getCachedList();
194
	      objectFormat = getObjectFormatMap().get(fmtid.getValue());
195
        
196
	      // the object format isn't registered
197
	      if ( objectFormat == null ) {
198
		      throw new NotFound("4848", "The format specified by " + fmtid.getValue() + 
199
	        " does not exist at this node.");
200
	
201
	      }
202
	      
203
	    }
204
    	    
205
  	return objectFormat;
150 206
	}
151 207

  
152 208
	@Override
......
155 211
		return null;
156 212
	}
157 213

  
214
	/**
215
	 * Return the list of object formats registered from the Coordinating Node.
216
	 * @return objectFormatList -  the list of object formats
217
	 */
158 218
	@Override
159 219
  public ObjectFormatList listFormats() throws InvalidRequest, ServiceFailure,
160 220
    NotFound, InsufficientResources, NotImplemented {
161
	  // TODO Auto-generated method stub
162
	  return null;
221
    
222
		try {
223
	    objectFormatList = getInstance().getCachedList();
224
    
225
		} catch (ServiceFailure sfe) {
226
    	throw sfe;
227

  
228
		} catch (NotFound nfe) {
229
    	throw nfe;
230
		
231
		}
232
		
233
		return objectFormatList;
163 234
  }
164 235

  
165 236
	@Override
......
180 251
		return null;
181 252
	}
182 253

  
254
  /*
255
   * Return the hash containing the fmtid and format mapping
256
   * 
257
   * @return objectFormatMap - the hash of fmtid/format pairs
258
   */
259
  private HashMap<String, ObjectFormat> getObjectFormatMap() {
260
  	
261
  	if ( objectFormatMap == null ) {
262
  		objectFormatMap = new HashMap<String, ObjectFormat>();
263
  		
264
  	}
265
  	return objectFormatMap;
266
  	
267
  }
268
  
269
  /**
270
   * Get the object format list cached in Metacat
271
   */
272
  private ObjectFormatList getCachedList()
273
    throws NotFound, ServiceFailure {
274
    
275
  	ObjectFormatList objectFormatList = null;
276
  	
277
    try {
278
      
279
      // reset the accession number separator in case it is 
280
      // different than the default
281
      try {
282
        
283
        separator = PropertyService.getProperty("document.accNumSeparator");
284
        
285
      } catch ( PropertyNotFoundException pnfe ) {
286
        
287
        // use the default separator, but log the issue
288
        logMetacat.debug("There was a problem finding the document " +
289
          "separator property. The error message was: " + pnfe.getMessage());
290
      }
291
      
292
      // get the latest accession number if it is in Metacat
293
      this.rev = 
294
        DBUtil.getLatestRevisionInDocumentTable(this.OBJECT_FORMAT_DOCID);
295
      
296
      if ( this.rev != -1 ) {
297
        this.accNumber = this.OBJECT_FORMAT_DOCID + 
298
                         this.separator + 
299
                         this.rev;
300
        DocumentImpl objectFormatsDocument = new DocumentImpl(accNumber, false);
301
        ByteArrayInputStream bais = 
302
          new ByteArrayInputStream(objectFormatsDocument.toString().getBytes());
303

  
304
        // deserialize the object format list
305
        try {
306
  	      
307
        	objectFormatList = 
308
        		TypeMarshaller.unmarshalTypeFromStream(ObjectFormatList.class, bais);
309
        
310
        } catch (IOException e) {
311
        	throw new ServiceFailure("4841", "Unexpected exception from the service - " + 
312
        		e.getClass() + ": " + e.getMessage());
313
        
314
        } catch (InstantiationException e) {
315
         	throw new ServiceFailure("4841", "Unexpected exception from the service - " + 
316
        		e.getClass() + ": " + e.getMessage());
317
        
318
        } catch (IllegalAccessException e) {
319
         	throw new ServiceFailure("4841", "Unexpected exception from the service - " + 
320
        		e.getClass() + ": " + e.getMessage());
321
             
322
        } catch (JiBXException e) {
323
         	throw new ServiceFailure("4841", "Unexpected exception from the service - " + 
324
        		e.getClass() + ": " + e.getMessage());
325
       
326
        }
327
  
328
      } else {
329
        throw new NotFound("4843", "The object formats collection could not " +
330
        	"be found at this node.");
331
      }
332
      
333
    } catch ( SQLException sqle ) {      
334
     	throw new ServiceFailure("4841", "Unexpected exception from the service - " + 
335
      		sqle.getClass() + ": " + sqle.getMessage());
336
      
337
    } catch (McdbException mcdbe) {      
338
     	throw new ServiceFailure("4841", "Unexpected exception from the service - " + 
339
     			mcdbe.getClass() + ": " + mcdbe.getMessage());
340
     	
341
    }
342
  
343
    // index the object format list based on the format identifier string
344
    int listSize = objectFormatList.sizeObjectFormats();
345
    
346
    for (int i = 0; i < listSize; i++ ) {
347
      
348
      ObjectFormat objectFormat = 
349
        objectFormatList.getObjectFormat(i);
350
      String identifier = objectFormat.getFmtid().getValue();
351
      getObjectFormatMap().put(identifier, objectFormat);
352
      
353
    }
354

  
355
    return objectFormatList;
356
    
357
  }
358

  
183 359
}
184 360

  
src/edu/ucsb/nceas/metacat/IdentifierManager.java
131 131
        submitterSubject.setValue(submitter);
132 132
        sysMeta.setSubmitter(submitterSubject);
133 133
        try {
134
	        sysMeta.setObjectFormat(ObjectFormatCache.getFormat(objectFormat));
134
	        sysMeta.setObjectFormat(ObjectFormatCache.getInstance().getFormat(objectFormat));
135 135
        } catch (NotFound nfe) {
136 136
          logMetacat.error("The objectFormat " + objectFormat +
137 137
          	" is not registered. Setting the default format.");
......
291 291
                submitterSubject.setValue(submitter);
292 292
                sysMeta.setSubmitter(submitterSubject);
293 293
                try {
294
        	        sysMeta.setObjectFormat(ObjectFormatCache.getFormat(objectFormat));
294
        	        sysMeta.setObjectFormat(ObjectFormatCache.getInstance().getFormat(objectFormat));
295 295
                } catch (NotFound nfe) {
296 296
                  logMetacat.error("The objectFormat " + objectFormat +
297 297
                  	" is not registered. Setting the default format.");
......
1596 1596
                //cs.setAlgorithm(ChecksumAlgorithm.convert(checksumAlgorithm));
1597 1597
                oi.setChecksum(cs);
1598 1598
                
1599
                ObjectFormat oFormat = ObjectFormatCache.getFormat(format);
1599
                ObjectFormat oFormat = ObjectFormatCache.getInstance().getFormat(format);
1600 1600
                if(oFormat != null)
1601 1601
                {
1602 1602
                    oi.setObjectFormat(oFormat);
1603 1603
                }
1604 1604
                else
1605 1605
                { //if there is no object format, just default to text/plain
1606
                    oi.setObjectFormat(ObjectFormatCache.getFormat("application/octet-stream"));
1606
                    oi.setObjectFormat(ObjectFormatCache.getInstance().getFormat("application/octet-stream"));
1607 1607
                }
1608 1608
                                
1609 1609
                oi.setSize(size);

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