annotate ChangeLog @ 1337:4dff2f1163d8

Merge with default branch.
author Panayiotis Smeros <>
date Fri May 23 13:37:11 2014 +0300 (2014-05-23)
parents edc19e1061da e5abd174045f
children 5b6b65340693
rev   line source
psmeros@1305 1 * Fixed a bug that occured when storing quads from endpoint.
charnik@1334 2
charnik@1334 3 * Version 3.2.10 released.
charnik@1334 4
charnik@1334 5 * Various changes in the interface and behavior of Strabon Endpoint:
charnik@1334 6 - Revised the logos and the sample queries.
charnik@1334 7 - Results query limit is set to zero (unlimited).
charnik@1334 8 - Users can now store RDF data that is present in a file on the
charnik@1334 9 client side (the file is uploaded to the server).
charnik@1334 10 - Credentials are now required for uploading files or executing
charnik@1334 11 UPDATE queries, unless Strabon Endpoint runs locally (localhost).
charnik@1334 12 - When viewing the results of queries in HTML, any URI is now an
charnik@1334 13 active link to itself. Previously, that URI was being DESCRIBEd
charnik@1334 14 and one was being transferred to a page viewing the result of the
charnik@1334 15 DESCRIBE query.
charnik@1334 16 - The DESCRIBE functionality can now be accessed through the menu bar.
charnik@1334 17
sgian@1329 18 * Fixed a bug where strdf:intersection function did not work as an
sgian@1329 19 aggregate when used without 'GROUP BY'.
sgian@1329 20 (bug #46
sgian@1329 21
charnik@1280 22 Sat Oct 19 23:37:23 2013 Pyravlos Team
charnik@932 23
charnik@932 24 * Version 3.2.9 released.
charnik@932 25
Konstantina@1235 26 * Added support for the following google chart types: PieChart,
Konstantina@1235 27 AreaChart and ColumnChart to strabon endpoint.
Konstantina@1235 28
Konstantina@1265 29 * Added Timemap as new results format in Strabon endpoint. This
Konstantina@1265 30 option displays results in a map and a timeline on the same time,
Konstantina@1265 31 using the Timemap js library (
Konstantina@1265 32 The KMLWriter has been extended for that purpose, by transforming
Konstantina@1265 33 dateTime values that are included in the result set into the respective
Konstantina@1265 34 TimeStamp KML primitive (
Konstantina@1265 35 In the "temporals" branch, the values of the strdf:period datatype
Konstantina@1265 36 are converted into the respective KML TimeSpan primitive.
Konstantina@1265 37
charnik@1117 38 * Added extension function <> which is
charnik@1117 39 mapped to the ST_Centroid(geometry) extension function of PostGIS.
charnik@1117 40 See also: <>.
charnik@1117 41
charnik@1115 42 * Added extension function <> which is
charnik@1115 43 mapped to the ST_MakeLine(geometry, geometry) extension function of
charnik@1115 44 PostGIS. See also: <>.
charnik@1115 45
charnik@1115 46 * Added PostGIS vocabulary class.
charnik@1115 47
charnik@1012 48 * Added support of all SPARQL result types provided by Sesame (json,
charnik@1012 49 xml, csv, tsv, binary). To get the respective writer, just prepend the
charnik@1012 50 string "SPARQL/", e.g., "SPARQL/JSON". This is to ensure that we
charnik@1012 51 support all SPARQL result formats of the SPARQL Protocol.
charnik@1012 52
charnik@990 53 * Fixed a bug where a non-implemented extension function would make
charnik@990 54 Strabon throw a NULL pointer exception. Now we get away with it
charnik@990 55 through a warning.
charnik@990 56
charnik@990 57 * Strabon endpoint now publishes the URIs of the supported units of
charnik@990 58 measure for use in strdf:distance and geof:distance functions of
charnik@990 59 stSPARQL and GeoSPARQL, respectively. The URIs are those defined by
charnik@990 60 OGC Units of Measure 1.0 specification which may be found at
charnik@990 61 Strabon endpoint publishes
charnik@990 62 the URIs at http://localhost:8080/endpoint/Capabilities.
charnik@990 63
charnik@1004 64 * Created new module with name 'vocab` and artifactId
charnik@1004 65 'strabon-vocabulary` and moved there. Other
charnik@1004 66 vocabularies have been added as well, such as Simple Features, and
charnik@1004 67 GeoSPARQL.
charnik@966 68
charnik@964 69 * Strabon endpoint now publishes the URIs of the supported extension
charnik@964 70 functions for stSPARQL and GeoSPARQL. One should access them by
charnik@964 71 hitting the link http://localhost:8080/endpoint/Capabilities.
charnik@964 72
charnik@932 73 * Support for parsing EPSG URIs in geometry literals with datatype
charnik@932 74 geo:wktLiteral.
charnik@932 75 (bug #33:
Konstantina@1142 76
kallirroi@1273 77 * Endpoint Client now supports querying of Virtuoso and Parliament endpoints.
kallirroi@1273 78
kallirroi@1273 79 * Endpoint Client now supports store and update operations, but only
kallirroi@1273 80 for Strabon Endpoints.
kallirroi@1273 81
Konstantina@1142 82 *Modified the NQUADSTranslator so that the rewritten triples are
Konstantina@1142 83 immediately flushed to the database once they are created.
Konstantina@1142 84
Konstantina@1142 85 *In the N-Quads format, the fourth element is *optional*. Made proper
Konstantina@1142 86 modification to the storage manager to coply to the specification
Konstantina@1142 87 described here: Now files in
Konstantina@1142 88 NQUADS format can contain quads *or* triples in order to be stored
Konstantina@1142 89 successfully in Strabon.
Konstantina@1142 90
Konstantina@1142 91 *Fixed bug that occurs when storing periods having "UC" as ending
Konstantina@1142 92 point.
Konstantina@1142 93
Konstantina@1142 94 *Added an initial set of tests on temporal operations in the
Konstantina@1142 95 testsuite module.
Konstantina@1158 96
Konstantina@1158 97 *Completed support for temporal updates
Konstantina@1158 98
Konstantina@1158 99 *Moved vocabulary related to the temporal features of Strabon to the
Konstantina@1158 100 respective "vocabulary" project
charnik@932 101
Konstantina@1168 102 *The evaluation of temporal joins in the database does not produce
Konstantina@1168 103 cartesian products in the database
charnik@932 104
kallirroi@1143 105 * GeoSPARQL functions sfCrosses, sfOverlaps, ehOverlaps do not use the
kallirroi@1143 106 ST_Relate PostGIS function (bug #24:
kallirroi@1143 107
kallirroi@1143 108 * All Simple Features functions of GeoSPARQL do not use the ST_Relate
kallirroi@1143 109 PostGIS function
psmeros@1176 110
Konstantina@1174 111 * Added diffTime function. This function performs the difference
Konstantina@1174 112 between two literals of xsd:time datatype and returns a literal of
Konstantina@1174 113 the xsd:time datatype as well.
psmeros@1175 114
psmeros@1175 115 * Added a testsuite package in default branch. Full tester guide can be found
psmeros@1175 116 in README. Among other, most of GeoSPARQL compliance tests
psmeros@1175 117 (, pg. 53) have been
psmeros@1175 118 implemented.
kallirroi@1143 119
sgian@1267 120 * Changed the definition and implementation of strdf:distance function, by
sgian@1267 121 adopting the definition of GeoSPARQL.
sgian@1267 122 (bug #23:
sgian@1267 123
sgian@1268 124 * Changed the definition and implementation of strdf:buffer function, by
sgian@1268 125 adopting the definition of GeoSPARQL.
sgian@1268 126 (bug #35:
sgian@1268 127
sgian@1269 128 * Added geof:distance and geof:buffer functions, which have the same definition
sgian@1269 129 with strdf:distance and strdf:buffer respectively.
sgian@1276 130 (bug #32:
sgian@1269 131
sgian@1270 132 * Added a download button when performing describe and construct queries at the
sgian@1270 133 endpoint.
sgian@1270 134 (bug #38:
sgian@1270 135
sgian@1270 136 * Fixed a bug, where XMLWriter and TSVWriter did not return geometries with the
sgian@1270 137 SRID.
sgian@1270 138 (bug #47:
sgian@1270 139
sgian@1266 140 * Fixed a bug where the GeoSPARQL construct functions did not return the datatype
sgian@1266 141 geo:wktLiteral datatype but strdf:WKT.
sgian@1266 142
charnik@927 143 Tue Mar 26 13:28:26 2013 Pyravlos Team
charnik@645 144
charnik@853 145 * Version 3.2.8 released.
charnik@853 146
charnik@926 147 * Added support for handling (storing/querying) GeoSPARQL datatypes.
charnik@926 148 (bug #31:
charnik@926 149
charnik@926 150 * Fixed a bug in StoreOp that wouldn't close the connection, neither
charnik@926 151 rollback the transaction upon an exception. This had as a side effect
charnik@926 152 the abnormal termination of StoreOp (through for example the use of
charnik@926 153 Ctrl-C signal) which was leaving the database locked.
charnik@926 154
charnik@926 155 * Fixed bug where spatial aggregates (e.g., union) didn't work as
charnik@926 156 expected when the query didn't contain a `GROUP BY' clause.
charnik@926 157 (bug #22:
charnik@926 158
charnik@926 159 * Updated GeoSPARQL namespaces and fixed function names to comply with
charnik@926 160 the GeoSPARQL specification.
charnik@926 161 (bug #25:
Konstantina@1142 162
Konstantina@1142 163 *Added preliminary tests on temporal functions in the respective
Konstantina@1142 164 "test" package of the runtime module.
Konstantina@1142 165
Konstantina@1142 166 *Added option to strabon and endpoint scripts to support storing
Konstantina@1142 167 files in NQUADS format.
Konstantina@1142 168
Konstantina@1142 169 *When a large file in NQUADS format is going to be stored, it is
Konstantina@1142 170 partitioned and stored in parts. This happens because the translation
Konstantina@1142 171 of quads to triples is a memory intensive job, so, translating and
Konstantina@1142 172 storing the file in batches increases performance.
Konstantina@1142 173
charnik@926 174
charnik@853 175 Wed Jan 09 18:06:41 2013 Pyravlos Team
charnik@853 176
kkyzir@801 177 * Version 3.2.7 released.
kkyzir@801 178
ggarbis@854 179 * Add an extension function
ggarbis@854 180 <> for computing the
ggarbis@854 181 span (in milliseconds) between two timestamps.
ggarbis@854 182
ggarbis@854 183 * Added an <endpoint-exec> module. This module builds an executable jar file
ggarbis@854 184 with an embedded Apache Tomcat 7. To create and run the executable jar just
ggarbis@854 185 type:
ggarbis@854 186 $ mvn clean package
ggarbis@854 187 $ java -jar endpoint-exec/target/strabon-endpoint-executable-*.jar
charnik@853 188
charnik@810 189 * Modified strabon script and postgis/monetdb.StoreOP class to get an
charnik@810 190 option for storing a RDF file in a named graph. Moreover, the RDF
charnik@810 191 format of the input RDF file now is given as an option (still, if it
charnik@810 192 is missing, it is assumed that the input is in N-TRIPLES format). The
charnik@810 193 option for the format is -f and the option for the named graph is -g
charnik@810 194 (takes a URI as an argument).
charnik@810 195
kkyzir@801 196 * Modified the names of the stSPARQL extension functions that
kkyzir@801 197 utilize the minimum bounding boxes of the involved geometries.
Konstantina@1142 198
Konstantina@1142 199 *Fixed bug in the evaluation of temporal constructs.
Konstantina@1142 200
Konstantina@1142 201 *Fixed a major bug that occured when a temporal variable that also took part
Konstantina@1142 202 in a temporal join was projected.
Konstantina@1142 203
Konstantina@1142 204 *Renamed temporal extension functions to comply with the respective
Konstantina@1142 205 functions of Allen's temporal relations.
Konstantina@1142 206
Konstantina@1142 207 *Modified the implementation of the temporal relation functions
Konstantina@1142 208 "meets", "starts", "finishes", to comply with the semantics of the
Konstantina@1142 209 respective functions of Allen. These functions are not supported by
Konstantina@1142 210 PostgreSQL Temporal, so, in order to be evaluated in the database
Konstantina@1142 211 level, we implemented them as PostgreSQL extension functions.
Konstantina@1142 212 ATTENTION: In order to use these functions, the respective sql script
Konstantina@1142 213 that includes them should be loaded to the the temporally (and spa-
Konstantina@1142 214 tially) enabled database.
Konstantina@1142 215
kkyzir@801 216
charnik@811 217 Tue Dec 11 19:33:45 2012 Pyravlos Team
charnik@811 218
kkyzir@800 219 * Version 3.2.6 released.
kkyzir@800 220
kkyzir@800 221 * Modified the names of the stSPARQL extension functions to comply
kkyzir@801 222 with the OGC Simple Features Access standard.
kkyzir@800 223
charnik@811 224 Tue Dec 11 00:11:43 2012 Pyravlos Team
charnik@811 225
charnik@645 226 * Version 3.2.5 released.
charnik@645 227
Konstantina@1142 228 * Added support for storing and querying temporal information.
Konstantina@1142 229 This functionality may be found in the `temporals' branch.
Konstantina@848 230
Konstantina@1142 231 *The datatypes <> and
charnik@849 232 <> are used to
Konstantina@1142 233 represent periods and instants respectively.
Konstantina@848 234
Konstantina@1142 235 *The valid time time of triples is represented using quadtruples,
charnik@849 236 with the valid time annotation(instant or period) being the
Konstantina@1142 237 fourth element of the quad. Into this direction:
Konstantina@1142 238 *Strabon has been extended to support the NQUADS format. The
Konstantina@1142 239 respective Sesame packages (of version 2.6.9) that support
Konstantina@1142 240 this format are used.
Konstantina@1142 241
Konstantina@1142 242 *NQuadTranslator class has been created. This class uses the
Konstantina@1142 243 NQUADS parser which is available here:
Konstantina@1142 244 The initial version of this parser did not include support
Konstantina@1142 245 for literals as the fourth element of the quad. We exteded
Konstantina@1142 246 it to support the valid time representations described above.
Konstantina@1142 247
Konstantina@1142 248 *The NQUADSTranslator translates quads into triples using the
Konstantina@1142 249 named graph approach, similar to the one proposed by Tappolet
Konstantina@1142 250 et al. and described in
Konstantina@1142 251
Konstantina@1142 252 *The rdbms level of Strabon has been extended to (i) support
Konstantina@1142 253 tha period datatype (ii) store the period values in the table
Konstantina@1142 254 period_values(id, period). The period column is of the period
Konstantina@1142 255 datatype, offered by the PostgreSQL Temporal extension (
Konstantina@1142 256 Also, a GiST index is created on this column.
Konstantina@1142 257
Konstantina@1142 258 *A rewriting mechanism that converts quad graph patterns into
Konstantina@1142 259 triple partners using the named graphs approach has been
Konstantina@1142 260 implemented as a method of the runtime.generaldb.Strabon
Konstantina@1142 261 class.
Konstantina@1142 262
Konstantina@1142 263 *A big part of the temporal functions of stSPARQL has been
Konstantina@1142 264 imlemented. These functions include:
Konstantina@1142 265 *The temporal relation functions during, periodOverlaps,
Konstantina@1142 266 equalsPeriod, nequalsPeriod, adjacent, before, after,
Konstantina@1142 267 overleft, overright, meets, starts, finishes.
Konstantina@1142 268
Konstantina@1142 269 *The period constructors period_intersect, period_union,
Konstantina@1142 270 preceding_period, and succeeding_period. The last two
Konstantina@1142 271 constructors are implemented using the jtemporal library.
Konstantina@1142 272 The other functions are implemented in the database,
Konstantina@1142 273 being mapped into the respective functions of PostgreSQL
Konstantina@1142 274 Temporal. A complete reference of PostgreSQL Temporal
Konstantina@1142 275 can be found here:
Konstantina@1142 276
Konstantina@1142 277 *The temporal constants "NOW" and "UC" (Until Changed)
Konstantina@1142 278 are supported.
Konstantina@1142 279
Konstantina@1142 280 *The vocabulary of the valid time dimension of stSPARQL can
Konstantina@1142 281 be found at the TemporalConstants class of the evaluation
Konstantina@1142 282 module.
Konstantina@1142 283
charnik@759 284 * Changed behaviour of Strabon and Strabon Endpoint for connecting to
charnik@759 285 a spatially-enabled database. Only one instance of Strabon is allowed
charnik@759 286 at a time.
charnik@759 287
charnik@688 288 * Implemented a Java client for Strabon Endpoint. The client should be
charnik@688 289 used only with endpoint versions >=3.2.5. The implementation may be
charnik@688 290 found int the `endpoint-client' submodule of maven. Currently, only
charnik@688 291 querying of Strabon Endpoints is supported.
charnik@688 292
charnik@662 293 * Added support for requesting the capabilities of Strabon Endpoint
charnik@662 294 (fixes Bug #20 <>). See
charnik@662 295 changesets f840796400bf and ?<TBC>? for specific details and how you
charnik@662 296 can determine the capabilities of older endpoints (versions <= 3.2.4).
charnik@662 297
charnik@658 298 * Updated KML writer to include the projected variables of an stSPARQL
charnik@658 299 query in "ExtendedData" and "Data" tags. This is the proper way to
charnik@658 300 do it if we need to convert a KML to a ESRI shapefile and also include
charnik@658 301 such information as attributes for a feature. See related pages from
charnik@658 302 KML specification:
charnik@658 303 <>
charnik@658 304 <>
charnik@658 305
charnik@645 306 * Added user authentication for storing RDF data through Strabon
charnik@662 307 Endpoint. The credentials are specified in
charnik@662 308 WEB-INF/ file.
charnik@645 309
charnik@645 310 * Strabon Endpoints now limits the number of the results to a maximum
charnik@645 311 one. The maximum number is specified in the beans.xml file. This
charnik@645 312 corresponds to parameter "maxLimit". The endpoint script has also been
charnik@645 313 updated correspondingly; the limit can be given using the option "-l".
charnik@645 314 One can disable limiting of query results, by setting the "maxLimit"
charnik@645 315 parameter to 0. Addresses Bug #6
charnik@645 316 (<>).
charnik@645 317
charnik@645 318 * Added "Known Issues" section to README.
charnik@645 319
charnik@645 320 * Added -m (more memory) and -M (much more memory) options in strabon
charnik@645 321 script for out-of-memory exceptions.
charnik@645 322
charnik@849 323 * Fixed Bug #10 (<>). Now
charnik@849 324 KMLWriter handles more geometric types (other than polygons). See
charnik@849 325 changeset 9a3bfee64a39.
charnik@645 326
charnik@645 327 * Menu and navigation in Strabon Endpoint has changed to use jquery.
charnik@645 328 The menu is now populated using the queries placed inside the beans.xml.
charnik@645 329
charnik@645 330 * Added BrowseBean and browse.jsp for browsing the RDF data using the
charnik@645 331 Strabon Endpoint.