annotate ChangeLog @ 1528:6cc6a1963350

Backed out changeset ba8fb069b2ca
author Panayiotis Smeros <>
date Mon Jan 04 17:47:18 2016 +0200 (2016-01-04)
parents ba8fb069b2ca
children ce70b9286f2c
rev   line source
psmeros@1528 1 * Completed implementation of the period function, that constructs
psmeros@1528 2 a period with start and end points the given arguments
charnik@1425 3 * Fixed a bug that would not return the correct spatial datatype of a
charnik@1425 4 projected geometry literal stored in the database.
charnik@1425 5 (bug #71:
charnik@1425 6
charnik@1425 7 * Now, geometries expressed in CRS84 and a `geo:wktLiteral' datatype
charnik@1425 8 are assigned the correct CRS, i.e., EPSG:4326 with a longitude
charnik@1425 9 latitude axis order.
charnik@1425 10
charnik@1425 11 * Now, we report a parse error when a constant geometry given in a
charnik@1425 12 SELECT or HAVING clause is not well-formed according to the WKT
charnik@1425 13 specification.
charnik@1425 14 (bug #69:
charnik@1425 15
charnik@1425 16 * Function `geof:convexHull' is now supported in a Having clause.
charnik@1425 17
charnik@1425 18 * Fixed older implementation of `strdf:distance' that would expect two
charnik@1425 19 arguments instead of three when present in a HAVING clause.
charnik@1425 20
charnik@1425 21 * Fixed a bug that would cause a class cast exception for grounded
charnik@1425 22 expressions with function nesting in the SELECT or HAVING clause.
charnik@1425 23
charnik@1425 24 * Fixed a bug in which `postgis:ST_Centroid' did not work in the SELECT
charnik@1425 25 clause with input geometries from the database.
charnik@1425 26
charnik@1425 27 * Fixed a bug that `geof:getSRID' would return an integer instead of a
charnik@1425 28 the URI corrresponding to the CRS that the input geometry was
charnik@1425 29 expressed.
charnik@1425 30 (bug #32:
charnik@1368 31 * Fixed a bug that would raise an exception for queries involving two
charnik@1368 32 UNION graph patterns and a projection to a predicate or a URI in
charnik@1368 33 general.
charnik@1368 34 (bug #53:
charnik@1368 35
charnik@1364 36 Wed Sep 17 20:14:12 2014 Pyravlos Team
charnik@1334 37
charnik@1334 38 * Version 3.2.10 released.
charnik@1334 39
charnik@1360 40 * The test suite of Strabon has now reached a mature level. It
charnik@1360 41 contains tests for both stSPARQL and GeoSPARQL query languages and
charnik@1360 42 most of the compliance tests covered in the specification of
charnik@1360 43 GeoSPARQL (well, only those tests for the components that we have
charnik@1360 44 chosen to implement).
charnik@1360 45
charnik@1360 46 * The endpoint now parses Accept headers with multiple values and uses
charnik@1360 47 the first mimetype corresponding to a valid stSPARQLQueryResultFormat.
charnik@1360 48 (bug #64:
charnik@1360 49
charnik@1360 50 * The endpoint now registers a handler for SIGTERM signals, so that if
charnik@1360 51 it is run from the command-line (endpoint-exec), then the closing of
charnik@1360 52 the connection will be ultimately called.
charnik@1360 53 (bug #40:
charnik@1360 54
johnvl@1355 55 * Strabon goes debian v1. the endpoint-exec jar is now given in a .deb
johnvl@1355 56 format. By dpkg-ing it, one can run a stand alone strabon endpoint
johnvl@1355 57 locally.
johnvl@1355 58 (bug #45
johnvl@1355 59
johnvl@1351 60 * Fixed a bug in which Strabon hanged when a unary spatial construct
johnvl@1351 61 had a ternary spatial construct as argument.
charnik@1360 62 (bug #45
johnvl@1351 63
charnik@1360 64 * Fixed a bug according to which spatial functions in ORDER BY were not
charnik@1360 65 evaluated at all.
charnik@1360 66 (bug #62:
charnik@1360 67
charnik@1360 68 * Fixed a bug according to which spatial boolean functions appearing
charnik@1360 69 in the SELECT clause were raising a NULL pointer exception.
charnik@1360 70 (bug #34:
mkarpat@1349 71
sgian@1340 72 * Fixed a bug in queries that contain variables that exist inside
sgian@1340 73 spatial functions in select and do not exist in the where clause
sgian@1340 74 made Strabon throw a NULL pointer exception.
sgian@1340 75 (bug #51
sgian@1340 76
charnik@1334 77 * Various changes in the interface and behavior of Strabon Endpoint:
charnik@1334 78 - Revised the logos and the sample queries.
charnik@1334 79 - Results query limit is set to zero (unlimited).
charnik@1334 80 - Users can now store RDF data that is present in a file on the
charnik@1334 81 client side (the file is uploaded to the server).
charnik@1334 82 - Credentials are now required for uploading files or executing
charnik@1334 83 UPDATE queries, unless Strabon Endpoint runs locally (localhost).
charnik@1334 84 - When viewing the results of queries in HTML, any URI is now an
charnik@1334 85 active link to itself. Previously, that URI was being DESCRIBEd
charnik@1334 86 and one was being transferred to a page viewing the result of the
charnik@1334 87 DESCRIBE query.
charnik@1334 88 - The DESCRIBE functionality can now be accessed through the menu bar.
charnik@1334 89
sgian@1329 90 * Fixed a bug where strdf:intersection function did not work as an
charnik@1360 91 aggregate when used without 'GROUP BY'.
charnik@1360 92 (bug #46
sgian@1329 93
mkarpat@1349 94
charnik@1280 95 Sat Oct 19 23:37:23 2013 Pyravlos Team
charnik@932 96
charnik@932 97 * Version 3.2.9 released.
charnik@932 98
Konstantina@1235 99 * Added support for the following google chart types: PieChart,
Konstantina@1235 100 AreaChart and ColumnChart to strabon endpoint.
Konstantina@1235 101
Konstantina@1265 102 * Added Timemap as new results format in Strabon endpoint. This
Konstantina@1265 103 option displays results in a map and a timeline on the same time,
Konstantina@1265 104 using the Timemap js library (
Konstantina@1265 105 The KMLWriter has been extended for that purpose, by transforming
Konstantina@1265 106 dateTime values that are included in the result set into the respective
Konstantina@1265 107 TimeStamp KML primitive (
Konstantina@1265 108 In the "temporals" branch, the values of the strdf:period datatype
Konstantina@1265 109 are converted into the respective KML TimeSpan primitive.
Konstantina@1265 110
charnik@1117 111 * Added extension function <> which is
charnik@1117 112 mapped to the ST_Centroid(geometry) extension function of PostGIS.
charnik@1117 113 See also: <>.
charnik@1117 114
charnik@1115 115 * Added extension function <> which is
charnik@1115 116 mapped to the ST_MakeLine(geometry, geometry) extension function of
charnik@1115 117 PostGIS. See also: <>.
charnik@1115 118
charnik@1115 119 * Added PostGIS vocabulary class.
charnik@1115 120
charnik@1012 121 * Added support of all SPARQL result types provided by Sesame (json,
charnik@1012 122 xml, csv, tsv, binary). To get the respective writer, just prepend the
charnik@1012 123 string "SPARQL/", e.g., "SPARQL/JSON". This is to ensure that we
charnik@1012 124 support all SPARQL result formats of the SPARQL Protocol.
charnik@1012 125
charnik@990 126 * Fixed a bug where a non-implemented extension function would make
charnik@990 127 Strabon throw a NULL pointer exception. Now we get away with it
charnik@990 128 through a warning.
charnik@990 129
charnik@990 130 * Strabon endpoint now publishes the URIs of the supported units of
charnik@990 131 measure for use in strdf:distance and geof:distance functions of
charnik@990 132 stSPARQL and GeoSPARQL, respectively. The URIs are those defined by
charnik@990 133 OGC Units of Measure 1.0 specification which may be found at
charnik@990 134 Strabon endpoint publishes
charnik@990 135 the URIs at http://localhost:8080/endpoint/Capabilities.
charnik@990 136
charnik@1004 137 * Created new module with name 'vocab` and artifactId
charnik@1004 138 'strabon-vocabulary` and moved there. Other
charnik@1004 139 vocabularies have been added as well, such as Simple Features, and
charnik@1004 140 GeoSPARQL.
charnik@966 141
charnik@964 142 * Strabon endpoint now publishes the URIs of the supported extension
charnik@964 143 functions for stSPARQL and GeoSPARQL. One should access them by
charnik@964 144 hitting the link http://localhost:8080/endpoint/Capabilities.
charnik@964 145
charnik@932 146 * Support for parsing EPSG URIs in geometry literals with datatype
charnik@932 147 geo:wktLiteral.
charnik@932 148 (bug #33:
Konstantina@1142 149
kallirroi@1273 150 * Endpoint Client now supports querying of Virtuoso and Parliament endpoints.
kallirroi@1273 151
kallirroi@1273 152 * Endpoint Client now supports store and update operations, but only
kallirroi@1273 153 for Strabon Endpoints.
kallirroi@1273 154
Konstantina@1142 155 *Modified the NQUADSTranslator so that the rewritten triples are
Konstantina@1142 156 immediately flushed to the database once they are created.
Konstantina@1142 157
Konstantina@1142 158 *In the N-Quads format, the fourth element is *optional*. Made proper
Konstantina@1142 159 modification to the storage manager to coply to the specification
Konstantina@1142 160 described here: Now files in
Konstantina@1142 161 NQUADS format can contain quads *or* triples in order to be stored
Konstantina@1142 162 successfully in Strabon.
Konstantina@1142 163
Konstantina@1142 164 *Fixed bug that occurs when storing periods having "UC" as ending
Konstantina@1142 165 point.
Konstantina@1142 166
Konstantina@1142 167 *Added an initial set of tests on temporal operations in the
Konstantina@1142 168 testsuite module.
Konstantina@1158 169
Konstantina@1158 170 *Completed support for temporal updates
Konstantina@1158 171
Konstantina@1158 172 *Moved vocabulary related to the temporal features of Strabon to the
Konstantina@1158 173 respective "vocabulary" project
charnik@932 174
Konstantina@1168 175 *The evaluation of temporal joins in the database does not produce
Konstantina@1168 176 cartesian products in the database
charnik@932 177
kallirroi@1143 178 * GeoSPARQL functions sfCrosses, sfOverlaps, ehOverlaps do not use the
kallirroi@1143 179 ST_Relate PostGIS function (bug #24:
kallirroi@1143 180
kallirroi@1143 181 * All Simple Features functions of GeoSPARQL do not use the ST_Relate
kallirroi@1143 182 PostGIS function
psmeros@1176 183
Konstantina@1174 184 * Added diffTime function. This function performs the difference
Konstantina@1174 185 between two literals of xsd:time datatype and returns a literal of
Konstantina@1174 186 the xsd:time datatype as well.
psmeros@1175 187
psmeros@1175 188 * Added a testsuite package in default branch. Full tester guide can be found
psmeros@1175 189 in README. Among other, most of GeoSPARQL compliance tests
psmeros@1175 190 (, pg. 53) have been
psmeros@1175 191 implemented.
kallirroi@1143 192
sgian@1267 193 * Changed the definition and implementation of strdf:distance function, by
sgian@1267 194 adopting the definition of GeoSPARQL.
sgian@1267 195 (bug #23:
sgian@1267 196
sgian@1268 197 * Changed the definition and implementation of strdf:buffer function, by
sgian@1268 198 adopting the definition of GeoSPARQL.
sgian@1268 199 (bug #35:
sgian@1268 200
sgian@1269 201 * Added geof:distance and geof:buffer functions, which have the same definition
sgian@1269 202 with strdf:distance and strdf:buffer respectively.
sgian@1276 203 (bug #32:
sgian@1269 204
sgian@1270 205 * Added a download button when performing describe and construct queries at the
sgian@1270 206 endpoint.
sgian@1270 207 (bug #38:
sgian@1270 208
sgian@1270 209 * Fixed a bug, where XMLWriter and TSVWriter did not return geometries with the
sgian@1270 210 SRID.
sgian@1270 211 (bug #47:
sgian@1270 212
sgian@1266 213 * Fixed a bug where the GeoSPARQL construct functions did not return the datatype
sgian@1266 214 geo:wktLiteral datatype but strdf:WKT.
sgian@1266 215
charnik@927 216 Tue Mar 26 13:28:26 2013 Pyravlos Team
charnik@645 217
charnik@853 218 * Version 3.2.8 released.
charnik@853 219
charnik@926 220 * Added support for handling (storing/querying) GeoSPARQL datatypes.
charnik@926 221 (bug #31:
charnik@926 222
charnik@926 223 * Fixed a bug in StoreOp that wouldn't close the connection, neither
charnik@926 224 rollback the transaction upon an exception. This had as a side effect
charnik@926 225 the abnormal termination of StoreOp (through for example the use of
charnik@926 226 Ctrl-C signal) which was leaving the database locked.
charnik@926 227
charnik@926 228 * Fixed bug where spatial aggregates (e.g., union) didn't work as
charnik@926 229 expected when the query didn't contain a `GROUP BY' clause.
charnik@926 230 (bug #22:
charnik@926 231
charnik@926 232 * Updated GeoSPARQL namespaces and fixed function names to comply with
charnik@926 233 the GeoSPARQL specification.
charnik@926 234 (bug #25:
Konstantina@1142 235
Konstantina@1142 236 *Added preliminary tests on temporal functions in the respective
Konstantina@1142 237 "test" package of the runtime module.
Konstantina@1142 238
Konstantina@1142 239 *Added option to strabon and endpoint scripts to support storing
Konstantina@1142 240 files in NQUADS format.
Konstantina@1142 241
Konstantina@1142 242 *When a large file in NQUADS format is going to be stored, it is
Konstantina@1142 243 partitioned and stored in parts. This happens because the translation
Konstantina@1142 244 of quads to triples is a memory intensive job, so, translating and
Konstantina@1142 245 storing the file in batches increases performance.
Konstantina@1142 246
charnik@926 247
charnik@853 248 Wed Jan 09 18:06:41 2013 Pyravlos Team
charnik@853 249
kkyzir@801 250 * Version 3.2.7 released.
kkyzir@801 251
ggarbis@854 252 * Add an extension function
ggarbis@854 253 <> for computing the
ggarbis@854 254 span (in milliseconds) between two timestamps.
ggarbis@854 255
ggarbis@854 256 * Added an <endpoint-exec> module. This module builds an executable jar file
ggarbis@854 257 with an embedded Apache Tomcat 7. To create and run the executable jar just
ggarbis@854 258 type:
ggarbis@854 259 $ mvn clean package
ggarbis@854 260 $ java -jar endpoint-exec/target/strabon-endpoint-executable-*.jar
charnik@853 261
charnik@810 262 * Modified strabon script and postgis/monetdb.StoreOP class to get an
charnik@810 263 option for storing a RDF file in a named graph. Moreover, the RDF
charnik@810 264 format of the input RDF file now is given as an option (still, if it
charnik@810 265 is missing, it is assumed that the input is in N-TRIPLES format). The
charnik@810 266 option for the format is -f and the option for the named graph is -g
charnik@810 267 (takes a URI as an argument).
charnik@810 268
kkyzir@801 269 * Modified the names of the stSPARQL extension functions that
kkyzir@801 270 utilize the minimum bounding boxes of the involved geometries.
Konstantina@1142 271
Konstantina@1142 272 *Fixed bug in the evaluation of temporal constructs.
Konstantina@1142 273
Konstantina@1142 274 *Fixed a major bug that occured when a temporal variable that also took part
Konstantina@1142 275 in a temporal join was projected.
Konstantina@1142 276
Konstantina@1142 277 *Renamed temporal extension functions to comply with the respective
Konstantina@1142 278 functions of Allen's temporal relations.
Konstantina@1142 279
Konstantina@1142 280 *Modified the implementation of the temporal relation functions
Konstantina@1142 281 "meets", "starts", "finishes", to comply with the semantics of the
Konstantina@1142 282 respective functions of Allen. These functions are not supported by
Konstantina@1142 283 PostgreSQL Temporal, so, in order to be evaluated in the database
Konstantina@1142 284 level, we implemented them as PostgreSQL extension functions.
Konstantina@1142 285 ATTENTION: In order to use these functions, the respective sql script
Konstantina@1142 286 that includes them should be loaded to the the temporally (and spa-
Konstantina@1142 287 tially) enabled database.
Konstantina@1142 288
kkyzir@801 289
charnik@811 290 Tue Dec 11 19:33:45 2012 Pyravlos Team
charnik@811 291
kkyzir@800 292 * Version 3.2.6 released.
kkyzir@800 293
kkyzir@800 294 * Modified the names of the stSPARQL extension functions to comply
kkyzir@801 295 with the OGC Simple Features Access standard.
kkyzir@800 296
charnik@811 297 Tue Dec 11 00:11:43 2012 Pyravlos Team
charnik@811 298
charnik@645 299 * Version 3.2.5 released.
charnik@645 300
Konstantina@1142 301 * Added support for storing and querying temporal information.
Konstantina@1142 302 This functionality may be found in the `temporals' branch.
Konstantina@848 303
Konstantina@1142 304 *The datatypes <> and
charnik@849 305 <> are used to
Konstantina@1142 306 represent periods and instants respectively.
Konstantina@848 307
Konstantina@1142 308 *The valid time time of triples is represented using quadtruples,
charnik@849 309 with the valid time annotation(instant or period) being the
Konstantina@1142 310 fourth element of the quad. Into this direction:
Konstantina@1142 311 *Strabon has been extended to support the NQUADS format. The
Konstantina@1142 312 respective Sesame packages (of version 2.6.9) that support
Konstantina@1142 313 this format are used.
Konstantina@1142 314
Konstantina@1142 315 *NQuadTranslator class has been created. This class uses the
Konstantina@1142 316 NQUADS parser which is available here:
Konstantina@1142 317 The initial version of this parser did not include support
Konstantina@1142 318 for literals as the fourth element of the quad. We exteded
Konstantina@1142 319 it to support the valid time representations described above.
Konstantina@1142 320
Konstantina@1142 321 *The NQUADSTranslator translates quads into triples using the
Konstantina@1142 322 named graph approach, similar to the one proposed by Tappolet
Konstantina@1142 323 et al. and described in
Konstantina@1142 324
Konstantina@1142 325 *The rdbms level of Strabon has been extended to (i) support
Konstantina@1142 326 tha period datatype (ii) store the period values in the table
Konstantina@1142 327 period_values(id, period). The period column is of the period
Konstantina@1142 328 datatype, offered by the PostgreSQL Temporal extension (
Konstantina@1142 329 Also, a GiST index is created on this column.
Konstantina@1142 330
Konstantina@1142 331 *A rewriting mechanism that converts quad graph patterns into
Konstantina@1142 332 triple partners using the named graphs approach has been
Konstantina@1142 333 implemented as a method of the runtime.generaldb.Strabon
Konstantina@1142 334 class.
Konstantina@1142 335
Konstantina@1142 336 *A big part of the temporal functions of stSPARQL has been
Konstantina@1142 337 imlemented. These functions include:
Konstantina@1142 338 *The temporal relation functions during, periodOverlaps,
Konstantina@1142 339 equalsPeriod, nequalsPeriod, adjacent, before, after,
Konstantina@1142 340 overleft, overright, meets, starts, finishes.
Konstantina@1142 341
Konstantina@1142 342 *The period constructors period_intersect, period_union,
Konstantina@1142 343 preceding_period, and succeeding_period. The last two
Konstantina@1142 344 constructors are implemented using the jtemporal library.
Konstantina@1142 345 The other functions are implemented in the database,
Konstantina@1142 346 being mapped into the respective functions of PostgreSQL
Konstantina@1142 347 Temporal. A complete reference of PostgreSQL Temporal
Konstantina@1142 348 can be found here:
Konstantina@1142 349
Konstantina@1142 350 *The temporal constants "NOW" and "UC" (Until Changed)
Konstantina@1142 351 are supported.
Konstantina@1142 352
Konstantina@1142 353 *The vocabulary of the valid time dimension of stSPARQL can
Konstantina@1142 354 be found at the TemporalConstants class of the evaluation
Konstantina@1142 355 module.
Konstantina@1142 356
charnik@759 357 * Changed behaviour of Strabon and Strabon Endpoint for connecting to
charnik@759 358 a spatially-enabled database. Only one instance of Strabon is allowed
charnik@759 359 at a time.
charnik@759 360
charnik@688 361 * Implemented a Java client for Strabon Endpoint. The client should be
charnik@688 362 used only with endpoint versions >=3.2.5. The implementation may be
charnik@688 363 found int the `endpoint-client' submodule of maven. Currently, only
charnik@688 364 querying of Strabon Endpoints is supported.
charnik@688 365
charnik@662 366 * Added support for requesting the capabilities of Strabon Endpoint
charnik@662 367 (fixes Bug #20 <>). See
charnik@662 368 changesets f840796400bf and ?<TBC>? for specific details and how you
charnik@662 369 can determine the capabilities of older endpoints (versions <= 3.2.4).
charnik@662 370
charnik@658 371 * Updated KML writer to include the projected variables of an stSPARQL
charnik@658 372 query in "ExtendedData" and "Data" tags. This is the proper way to
charnik@658 373 do it if we need to convert a KML to a ESRI shapefile and also include
charnik@658 374 such information as attributes for a feature. See related pages from
charnik@658 375 KML specification:
charnik@658 376 <>
charnik@658 377 <>
charnik@658 378
charnik@645 379 * Added user authentication for storing RDF data through Strabon
charnik@662 380 Endpoint. The credentials are specified in
charnik@662 381 WEB-INF/ file.
charnik@645 382
charnik@645 383 * Strabon Endpoints now limits the number of the results to a maximum
charnik@645 384 one. The maximum number is specified in the beans.xml file. This
charnik@645 385 corresponds to parameter "maxLimit". The endpoint script has also been
charnik@645 386 updated correspondingly; the limit can be given using the option "-l".
charnik@645 387 One can disable limiting of query results, by setting the "maxLimit"
charnik@645 388 parameter to 0. Addresses Bug #6
charnik@645 389 (<>).
charnik@645 390
charnik@645 391 * Added "Known Issues" section to README.
charnik@645 392
charnik@645 393 * Added -m (more memory) and -M (much more memory) options in strabon
charnik@645 394 script for out-of-memory exceptions.
charnik@645 395
charnik@849 396 * Fixed Bug #10 (<>). Now
charnik@849 397 KMLWriter handles more geometric types (other than polygons). See
charnik@849 398 changeset 9a3bfee64a39.
charnik@645 399
charnik@645 400 * Menu and navigation in Strabon Endpoint has changed to use jquery.
charnik@645 401 The menu is now populated using the queries placed inside the beans.xml.
charnik@645 402
charnik@645 403 * Added BrowseBean and browse.jsp for browsing the RDF data using the
charnik@645 404 Strabon Endpoint.