annotate ChangeLog @ 1535:ce70b9286f2c

updated ChangeLog
author Konstantina Bereta <>
date Tue Mar 28 18:20:34 2017 +0300 (2017-03-28)
parents 6cc6a1963350
rev   line source
Konstantina@1535 1 * Fixed bug in the query rewritter that occurs when there is a
Konstantina@1535 2 quad pattern and the third element is a constant that contains
Konstantina@1535 3 spaces. Other bugs where also discovered and fixed in the way
Konstantina@1535 4 (i.e., prefixes, non complete rules in regex).
Konstantina@1535 5 (bug #83:
Konstantina@1535 6
Konstantina@1535 7 Query rewritter will be deprecated in future releases,
Konstantina@1535 8 as any other use of regex as well. The new version will be
Konstantina@1535 9 developed in lower level.
Konstantina@1535 10 (Enhancement #84:
Konstantina@1535 11
psmeros@1528 12 * Completed implementation of the period function, that constructs
psmeros@1528 13 a period with start and end points the given arguments
charnik@1425 14 * Fixed a bug that would not return the correct spatial datatype of a
charnik@1425 15 projected geometry literal stored in the database.
charnik@1425 16 (bug #71:
charnik@1425 17
charnik@1425 18 * Now, geometries expressed in CRS84 and a `geo:wktLiteral' datatype
charnik@1425 19 are assigned the correct CRS, i.e., EPSG:4326 with a longitude
charnik@1425 20 latitude axis order.
charnik@1425 21
charnik@1425 22 * Now, we report a parse error when a constant geometry given in a
charnik@1425 23 SELECT or HAVING clause is not well-formed according to the WKT
charnik@1425 24 specification.
charnik@1425 25 (bug #69:
charnik@1425 26
charnik@1425 27 * Function `geof:convexHull' is now supported in a Having clause.
charnik@1425 28
charnik@1425 29 * Fixed older implementation of `strdf:distance' that would expect two
charnik@1425 30 arguments instead of three when present in a HAVING clause.
charnik@1425 31
charnik@1425 32 * Fixed a bug that would cause a class cast exception for grounded
charnik@1425 33 expressions with function nesting in the SELECT or HAVING clause.
charnik@1425 34
charnik@1425 35 * Fixed a bug in which `postgis:ST_Centroid' did not work in the SELECT
charnik@1425 36 clause with input geometries from the database.
charnik@1425 37
charnik@1425 38 * Fixed a bug that `geof:getSRID' would return an integer instead of a
charnik@1425 39 the URI corrresponding to the CRS that the input geometry was
charnik@1425 40 expressed.
charnik@1425 41 (bug #32:
charnik@1368 42 * Fixed a bug that would raise an exception for queries involving two
charnik@1368 43 UNION graph patterns and a projection to a predicate or a URI in
charnik@1368 44 general.
charnik@1368 45 (bug #53:
charnik@1368 46
charnik@1364 47 Wed Sep 17 20:14:12 2014 Pyravlos Team
charnik@1334 48
charnik@1334 49 * Version 3.2.10 released.
charnik@1334 50
charnik@1360 51 * The test suite of Strabon has now reached a mature level. It
charnik@1360 52 contains tests for both stSPARQL and GeoSPARQL query languages and
charnik@1360 53 most of the compliance tests covered in the specification of
charnik@1360 54 GeoSPARQL (well, only those tests for the components that we have
charnik@1360 55 chosen to implement).
charnik@1360 56
charnik@1360 57 * The endpoint now parses Accept headers with multiple values and uses
charnik@1360 58 the first mimetype corresponding to a valid stSPARQLQueryResultFormat.
charnik@1360 59 (bug #64:
charnik@1360 60
charnik@1360 61 * The endpoint now registers a handler for SIGTERM signals, so that if
charnik@1360 62 it is run from the command-line (endpoint-exec), then the closing of
charnik@1360 63 the connection will be ultimately called.
charnik@1360 64 (bug #40:
charnik@1360 65
johnvl@1355 66 * Strabon goes debian v1. the endpoint-exec jar is now given in a .deb
johnvl@1355 67 format. By dpkg-ing it, one can run a stand alone strabon endpoint
johnvl@1355 68 locally.
johnvl@1355 69 (bug #45
johnvl@1355 70
johnvl@1351 71 * Fixed a bug in which Strabon hanged when a unary spatial construct
johnvl@1351 72 had a ternary spatial construct as argument.
charnik@1360 73 (bug #45
johnvl@1351 74
charnik@1360 75 * Fixed a bug according to which spatial functions in ORDER BY were not
charnik@1360 76 evaluated at all.
charnik@1360 77 (bug #62:
charnik@1360 78
charnik@1360 79 * Fixed a bug according to which spatial boolean functions appearing
charnik@1360 80 in the SELECT clause were raising a NULL pointer exception.
charnik@1360 81 (bug #34:
mkarpat@1349 82
sgian@1340 83 * Fixed a bug in queries that contain variables that exist inside
sgian@1340 84 spatial functions in select and do not exist in the where clause
sgian@1340 85 made Strabon throw a NULL pointer exception.
sgian@1340 86 (bug #51
sgian@1340 87
charnik@1334 88 * Various changes in the interface and behavior of Strabon Endpoint:
charnik@1334 89 - Revised the logos and the sample queries.
charnik@1334 90 - Results query limit is set to zero (unlimited).
charnik@1334 91 - Users can now store RDF data that is present in a file on the
charnik@1334 92 client side (the file is uploaded to the server).
charnik@1334 93 - Credentials are now required for uploading files or executing
charnik@1334 94 UPDATE queries, unless Strabon Endpoint runs locally (localhost).
charnik@1334 95 - When viewing the results of queries in HTML, any URI is now an
charnik@1334 96 active link to itself. Previously, that URI was being DESCRIBEd
charnik@1334 97 and one was being transferred to a page viewing the result of the
charnik@1334 98 DESCRIBE query.
charnik@1334 99 - The DESCRIBE functionality can now be accessed through the menu bar.
charnik@1334 100
sgian@1329 101 * Fixed a bug where strdf:intersection function did not work as an
charnik@1360 102 aggregate when used without 'GROUP BY'.
charnik@1360 103 (bug #46
sgian@1329 104
mkarpat@1349 105
charnik@1280 106 Sat Oct 19 23:37:23 2013 Pyravlos Team
charnik@932 107
charnik@932 108 * Version 3.2.9 released.
charnik@932 109
Konstantina@1235 110 * Added support for the following google chart types: PieChart,
Konstantina@1235 111 AreaChart and ColumnChart to strabon endpoint.
Konstantina@1235 112
Konstantina@1265 113 * Added Timemap as new results format in Strabon endpoint. This
Konstantina@1265 114 option displays results in a map and a timeline on the same time,
Konstantina@1265 115 using the Timemap js library (
Konstantina@1265 116 The KMLWriter has been extended for that purpose, by transforming
Konstantina@1265 117 dateTime values that are included in the result set into the respective
Konstantina@1265 118 TimeStamp KML primitive (
Konstantina@1265 119 In the "temporals" branch, the values of the strdf:period datatype
Konstantina@1265 120 are converted into the respective KML TimeSpan primitive.
Konstantina@1265 121
charnik@1117 122 * Added extension function <> which is
charnik@1117 123 mapped to the ST_Centroid(geometry) extension function of PostGIS.
charnik@1117 124 See also: <>.
charnik@1117 125
charnik@1115 126 * Added extension function <> which is
charnik@1115 127 mapped to the ST_MakeLine(geometry, geometry) extension function of
charnik@1115 128 PostGIS. See also: <>.
charnik@1115 129
charnik@1115 130 * Added PostGIS vocabulary class.
charnik@1115 131
charnik@1012 132 * Added support of all SPARQL result types provided by Sesame (json,
charnik@1012 133 xml, csv, tsv, binary). To get the respective writer, just prepend the
charnik@1012 134 string "SPARQL/", e.g., "SPARQL/JSON". This is to ensure that we
charnik@1012 135 support all SPARQL result formats of the SPARQL Protocol.
charnik@1012 136
charnik@990 137 * Fixed a bug where a non-implemented extension function would make
charnik@990 138 Strabon throw a NULL pointer exception. Now we get away with it
charnik@990 139 through a warning.
charnik@990 140
charnik@990 141 * Strabon endpoint now publishes the URIs of the supported units of
charnik@990 142 measure for use in strdf:distance and geof:distance functions of
charnik@990 143 stSPARQL and GeoSPARQL, respectively. The URIs are those defined by
charnik@990 144 OGC Units of Measure 1.0 specification which may be found at
charnik@990 145 Strabon endpoint publishes
charnik@990 146 the URIs at http://localhost:8080/endpoint/Capabilities.
charnik@990 147
charnik@1004 148 * Created new module with name 'vocab` and artifactId
charnik@1004 149 'strabon-vocabulary` and moved there. Other
charnik@1004 150 vocabularies have been added as well, such as Simple Features, and
charnik@1004 151 GeoSPARQL.
charnik@966 152
charnik@964 153 * Strabon endpoint now publishes the URIs of the supported extension
charnik@964 154 functions for stSPARQL and GeoSPARQL. One should access them by
charnik@964 155 hitting the link http://localhost:8080/endpoint/Capabilities.
charnik@964 156
charnik@932 157 * Support for parsing EPSG URIs in geometry literals with datatype
charnik@932 158 geo:wktLiteral.
charnik@932 159 (bug #33:
Konstantina@1142 160
kallirroi@1273 161 * Endpoint Client now supports querying of Virtuoso and Parliament endpoints.
kallirroi@1273 162
kallirroi@1273 163 * Endpoint Client now supports store and update operations, but only
kallirroi@1273 164 for Strabon Endpoints.
kallirroi@1273 165
Konstantina@1142 166 *Modified the NQUADSTranslator so that the rewritten triples are
Konstantina@1142 167 immediately flushed to the database once they are created.
Konstantina@1142 168
Konstantina@1142 169 *In the N-Quads format, the fourth element is *optional*. Made proper
Konstantina@1142 170 modification to the storage manager to coply to the specification
Konstantina@1142 171 described here: Now files in
Konstantina@1142 172 NQUADS format can contain quads *or* triples in order to be stored
Konstantina@1142 173 successfully in Strabon.
Konstantina@1142 174
Konstantina@1142 175 *Fixed bug that occurs when storing periods having "UC" as ending
Konstantina@1142 176 point.
Konstantina@1142 177
Konstantina@1142 178 *Added an initial set of tests on temporal operations in the
Konstantina@1142 179 testsuite module.
Konstantina@1158 180
Konstantina@1158 181 *Completed support for temporal updates
Konstantina@1158 182
Konstantina@1158 183 *Moved vocabulary related to the temporal features of Strabon to the
Konstantina@1158 184 respective "vocabulary" project
charnik@932 185
Konstantina@1168 186 *The evaluation of temporal joins in the database does not produce
Konstantina@1168 187 cartesian products in the database
charnik@932 188
kallirroi@1143 189 * GeoSPARQL functions sfCrosses, sfOverlaps, ehOverlaps do not use the
kallirroi@1143 190 ST_Relate PostGIS function (bug #24:
kallirroi@1143 191
kallirroi@1143 192 * All Simple Features functions of GeoSPARQL do not use the ST_Relate
kallirroi@1143 193 PostGIS function
psmeros@1176 194
Konstantina@1174 195 * Added diffTime function. This function performs the difference
Konstantina@1174 196 between two literals of xsd:time datatype and returns a literal of
Konstantina@1174 197 the xsd:time datatype as well.
psmeros@1175 198
psmeros@1175 199 * Added a testsuite package in default branch. Full tester guide can be found
psmeros@1175 200 in README. Among other, most of GeoSPARQL compliance tests
psmeros@1175 201 (, pg. 53) have been
psmeros@1175 202 implemented.
kallirroi@1143 203
sgian@1267 204 * Changed the definition and implementation of strdf:distance function, by
sgian@1267 205 adopting the definition of GeoSPARQL.
sgian@1267 206 (bug #23:
sgian@1267 207
sgian@1268 208 * Changed the definition and implementation of strdf:buffer function, by
sgian@1268 209 adopting the definition of GeoSPARQL.
sgian@1268 210 (bug #35:
sgian@1268 211
sgian@1269 212 * Added geof:distance and geof:buffer functions, which have the same definition
sgian@1269 213 with strdf:distance and strdf:buffer respectively.
sgian@1276 214 (bug #32:
sgian@1269 215
sgian@1270 216 * Added a download button when performing describe and construct queries at the
sgian@1270 217 endpoint.
sgian@1270 218 (bug #38:
sgian@1270 219
sgian@1270 220 * Fixed a bug, where XMLWriter and TSVWriter did not return geometries with the
sgian@1270 221 SRID.
sgian@1270 222 (bug #47:
sgian@1270 223
sgian@1266 224 * Fixed a bug where the GeoSPARQL construct functions did not return the datatype
sgian@1266 225 geo:wktLiteral datatype but strdf:WKT.
sgian@1266 226
charnik@927 227 Tue Mar 26 13:28:26 2013 Pyravlos Team
charnik@645 228
charnik@853 229 * Version 3.2.8 released.
charnik@853 230
charnik@926 231 * Added support for handling (storing/querying) GeoSPARQL datatypes.
charnik@926 232 (bug #31:
charnik@926 233
charnik@926 234 * Fixed a bug in StoreOp that wouldn't close the connection, neither
charnik@926 235 rollback the transaction upon an exception. This had as a side effect
charnik@926 236 the abnormal termination of StoreOp (through for example the use of
charnik@926 237 Ctrl-C signal) which was leaving the database locked.
charnik@926 238
charnik@926 239 * Fixed bug where spatial aggregates (e.g., union) didn't work as
charnik@926 240 expected when the query didn't contain a `GROUP BY' clause.
charnik@926 241 (bug #22:
charnik@926 242
charnik@926 243 * Updated GeoSPARQL namespaces and fixed function names to comply with
charnik@926 244 the GeoSPARQL specification.
charnik@926 245 (bug #25:
Konstantina@1142 246
Konstantina@1142 247 *Added preliminary tests on temporal functions in the respective
Konstantina@1142 248 "test" package of the runtime module.
Konstantina@1142 249
Konstantina@1142 250 *Added option to strabon and endpoint scripts to support storing
Konstantina@1142 251 files in NQUADS format.
Konstantina@1142 252
Konstantina@1142 253 *When a large file in NQUADS format is going to be stored, it is
Konstantina@1142 254 partitioned and stored in parts. This happens because the translation
Konstantina@1142 255 of quads to triples is a memory intensive job, so, translating and
Konstantina@1142 256 storing the file in batches increases performance.
Konstantina@1142 257
charnik@926 258
charnik@853 259 Wed Jan 09 18:06:41 2013 Pyravlos Team
charnik@853 260
kkyzir@801 261 * Version 3.2.7 released.
kkyzir@801 262
ggarbis@854 263 * Add an extension function
ggarbis@854 264 <> for computing the
ggarbis@854 265 span (in milliseconds) between two timestamps.
ggarbis@854 266
ggarbis@854 267 * Added an <endpoint-exec> module. This module builds an executable jar file
ggarbis@854 268 with an embedded Apache Tomcat 7. To create and run the executable jar just
ggarbis@854 269 type:
ggarbis@854 270 $ mvn clean package
ggarbis@854 271 $ java -jar endpoint-exec/target/strabon-endpoint-executable-*.jar
charnik@853 272
charnik@810 273 * Modified strabon script and postgis/monetdb.StoreOP class to get an
charnik@810 274 option for storing a RDF file in a named graph. Moreover, the RDF
charnik@810 275 format of the input RDF file now is given as an option (still, if it
charnik@810 276 is missing, it is assumed that the input is in N-TRIPLES format). The
charnik@810 277 option for the format is -f and the option for the named graph is -g
charnik@810 278 (takes a URI as an argument).
charnik@810 279
kkyzir@801 280 * Modified the names of the stSPARQL extension functions that
kkyzir@801 281 utilize the minimum bounding boxes of the involved geometries.
Konstantina@1142 282
Konstantina@1142 283 *Fixed bug in the evaluation of temporal constructs.
Konstantina@1142 284
Konstantina@1142 285 *Fixed a major bug that occured when a temporal variable that also took part
Konstantina@1142 286 in a temporal join was projected.
Konstantina@1142 287
Konstantina@1142 288 *Renamed temporal extension functions to comply with the respective
Konstantina@1142 289 functions of Allen's temporal relations.
Konstantina@1142 290
Konstantina@1142 291 *Modified the implementation of the temporal relation functions
Konstantina@1142 292 "meets", "starts", "finishes", to comply with the semantics of the
Konstantina@1142 293 respective functions of Allen. These functions are not supported by
Konstantina@1142 294 PostgreSQL Temporal, so, in order to be evaluated in the database
Konstantina@1142 295 level, we implemented them as PostgreSQL extension functions.
Konstantina@1142 296 ATTENTION: In order to use these functions, the respective sql script
Konstantina@1142 297 that includes them should be loaded to the the temporally (and spa-
Konstantina@1142 298 tially) enabled database.
Konstantina@1142 299
kkyzir@801 300
charnik@811 301 Tue Dec 11 19:33:45 2012 Pyravlos Team
charnik@811 302
kkyzir@800 303 * Version 3.2.6 released.
kkyzir@800 304
kkyzir@800 305 * Modified the names of the stSPARQL extension functions to comply
kkyzir@801 306 with the OGC Simple Features Access standard.
kkyzir@800 307
charnik@811 308 Tue Dec 11 00:11:43 2012 Pyravlos Team
charnik@811 309
charnik@645 310 * Version 3.2.5 released.
charnik@645 311
Konstantina@1142 312 * Added support for storing and querying temporal information.
Konstantina@1142 313 This functionality may be found in the `temporals' branch.
Konstantina@848 314
Konstantina@1142 315 *The datatypes <> and
charnik@849 316 <> are used to
Konstantina@1142 317 represent periods and instants respectively.
Konstantina@848 318
Konstantina@1142 319 *The valid time time of triples is represented using quadtruples,
charnik@849 320 with the valid time annotation(instant or period) being the
Konstantina@1142 321 fourth element of the quad. Into this direction:
Konstantina@1142 322 *Strabon has been extended to support the NQUADS format. The
Konstantina@1142 323 respective Sesame packages (of version 2.6.9) that support
Konstantina@1142 324 this format are used.
Konstantina@1142 325
Konstantina@1142 326 *NQuadTranslator class has been created. This class uses the
Konstantina@1142 327 NQUADS parser which is available here:
Konstantina@1142 328 The initial version of this parser did not include support
Konstantina@1142 329 for literals as the fourth element of the quad. We exteded
Konstantina@1142 330 it to support the valid time representations described above.
Konstantina@1142 331
Konstantina@1142 332 *The NQUADSTranslator translates quads into triples using the
Konstantina@1142 333 named graph approach, similar to the one proposed by Tappolet
Konstantina@1142 334 et al. and described in
Konstantina@1142 335
Konstantina@1142 336 *The rdbms level of Strabon has been extended to (i) support
Konstantina@1142 337 tha period datatype (ii) store the period values in the table
Konstantina@1142 338 period_values(id, period). The period column is of the period
Konstantina@1142 339 datatype, offered by the PostgreSQL Temporal extension (
Konstantina@1142 340 Also, a GiST index is created on this column.
Konstantina@1142 341
Konstantina@1142 342 *A rewriting mechanism that converts quad graph patterns into
Konstantina@1142 343 triple partners using the named graphs approach has been
Konstantina@1142 344 implemented as a method of the runtime.generaldb.Strabon
Konstantina@1142 345 class.
Konstantina@1142 346
Konstantina@1142 347 *A big part of the temporal functions of stSPARQL has been
Konstantina@1142 348 imlemented. These functions include:
Konstantina@1142 349 *The temporal relation functions during, periodOverlaps,
Konstantina@1142 350 equalsPeriod, nequalsPeriod, adjacent, before, after,
Konstantina@1142 351 overleft, overright, meets, starts, finishes.
Konstantina@1142 352
Konstantina@1142 353 *The period constructors period_intersect, period_union,
Konstantina@1142 354 preceding_period, and succeeding_period. The last two
Konstantina@1142 355 constructors are implemented using the jtemporal library.
Konstantina@1142 356 The other functions are implemented in the database,
Konstantina@1142 357 being mapped into the respective functions of PostgreSQL
Konstantina@1142 358 Temporal. A complete reference of PostgreSQL Temporal
Konstantina@1142 359 can be found here:
Konstantina@1142 360
Konstantina@1142 361 *The temporal constants "NOW" and "UC" (Until Changed)
Konstantina@1142 362 are supported.
Konstantina@1142 363
Konstantina@1142 364 *The vocabulary of the valid time dimension of stSPARQL can
Konstantina@1142 365 be found at the TemporalConstants class of the evaluation
Konstantina@1142 366 module.
Konstantina@1142 367
charnik@759 368 * Changed behaviour of Strabon and Strabon Endpoint for connecting to
charnik@759 369 a spatially-enabled database. Only one instance of Strabon is allowed
charnik@759 370 at a time.
charnik@759 371
charnik@688 372 * Implemented a Java client for Strabon Endpoint. The client should be
charnik@688 373 used only with endpoint versions >=3.2.5. The implementation may be
charnik@688 374 found int the `endpoint-client' submodule of maven. Currently, only
charnik@688 375 querying of Strabon Endpoints is supported.
charnik@688 376
charnik@662 377 * Added support for requesting the capabilities of Strabon Endpoint
charnik@662 378 (fixes Bug #20 <>). See
charnik@662 379 changesets f840796400bf and ?<TBC>? for specific details and how you
charnik@662 380 can determine the capabilities of older endpoints (versions <= 3.2.4).
charnik@662 381
charnik@658 382 * Updated KML writer to include the projected variables of an stSPARQL
charnik@658 383 query in "ExtendedData" and "Data" tags. This is the proper way to
charnik@658 384 do it if we need to convert a KML to a ESRI shapefile and also include
charnik@658 385 such information as attributes for a feature. See related pages from
charnik@658 386 KML specification:
charnik@658 387 <>
charnik@658 388 <>
charnik@658 389
charnik@645 390 * Added user authentication for storing RDF data through Strabon
charnik@662 391 Endpoint. The credentials are specified in
charnik@662 392 WEB-INF/ file.
charnik@645 393
charnik@645 394 * Strabon Endpoints now limits the number of the results to a maximum
charnik@645 395 one. The maximum number is specified in the beans.xml file. This
charnik@645 396 corresponds to parameter "maxLimit". The endpoint script has also been
charnik@645 397 updated correspondingly; the limit can be given using the option "-l".
charnik@645 398 One can disable limiting of query results, by setting the "maxLimit"
charnik@645 399 parameter to 0. Addresses Bug #6
charnik@645 400 (<>).
charnik@645 401
charnik@645 402 * Added "Known Issues" section to README.
charnik@645 403
charnik@645 404 * Added -m (more memory) and -M (much more memory) options in strabon
charnik@645 405 script for out-of-memory exceptions.
charnik@645 406
charnik@849 407 * Fixed Bug #10 (<>). Now
charnik@849 408 KMLWriter handles more geometric types (other than polygons). See
charnik@849 409 changeset 9a3bfee64a39.
charnik@645 410
charnik@645 411 * Menu and navigation in Strabon Endpoint has changed to use jquery.
charnik@645 412 The menu is now populated using the queries placed inside the beans.xml.
charnik@645 413
charnik@645 414 * Added BrowseBean and browse.jsp for browsing the RDF data using the
charnik@645 415 Strabon Endpoint.