annotate ChangeLog @ 1246:da14a303bf2c

merge with default
author Konstantina Bereta <>
date Thu Aug 01 14:40:30 2013 +0300 (2013-08-01)
parents c003d2c1a053 54eaaad0b72d
children c41e1b102dd3
rev   line source
charnik@932 1 Day Month Date Hour:Min:Sec Year Pyravlos Team
charnik@932 2
charnik@932 3 * Version 3.2.9 released.
charnik@932 4
Konstantina@1235 5 * Added support for the following google chart types: PieChart,
Konstantina@1235 6 AreaChart and ColumnChart to strabon endpoint.
Konstantina@1235 7
charnik@1117 8 * Added extension function <> which is
charnik@1117 9 mapped to the ST_Centroid(geometry) extension function of PostGIS.
charnik@1117 10 See also: <>.
charnik@1117 11
charnik@1115 12 * Added extension function <> which is
charnik@1115 13 mapped to the ST_MakeLine(geometry, geometry) extension function of
charnik@1115 14 PostGIS. See also: <>.
charnik@1115 15
charnik@1115 16 * Added PostGIS vocabulary class.
charnik@1115 17
charnik@1012 18 * Added support of all SPARQL result types provided by Sesame (json,
charnik@1012 19 xml, csv, tsv, binary). To get the respective writer, just prepend the
charnik@1012 20 string "SPARQL/", e.g., "SPARQL/JSON". This is to ensure that we
charnik@1012 21 support all SPARQL result formats of the SPARQL Protocol.
charnik@1012 22
charnik@990 23 * Fixed a bug where a non-implemented extension function would make
charnik@990 24 Strabon throw a NULL pointer exception. Now we get away with it
charnik@990 25 through a warning.
charnik@990 26
charnik@990 27 * Strabon endpoint now publishes the URIs of the supported units of
charnik@990 28 measure for use in strdf:distance and geof:distance functions of
charnik@990 29 stSPARQL and GeoSPARQL, respectively. The URIs are those defined by
charnik@990 30 OGC Units of Measure 1.0 specification which may be found at
charnik@990 31 Strabon endpoint publishes
charnik@990 32 the URIs at http://localhost:8080/endpoint/Capabilities.
charnik@990 33
charnik@1004 34 * Created new module with name 'vocab` and artifactId
charnik@1004 35 'strabon-vocabulary` and moved there. Other
charnik@1004 36 vocabularies have been added as well, such as Simple Features, and
charnik@1004 37 GeoSPARQL.
charnik@966 38
charnik@964 39 * Strabon endpoint now publishes the URIs of the supported extension
charnik@964 40 functions for stSPARQL and GeoSPARQL. One should access them by
charnik@964 41 hitting the link http://localhost:8080/endpoint/Capabilities.
charnik@964 42
charnik@932 43 * Support for parsing EPSG URIs in geometry literals with datatype
charnik@932 44 geo:wktLiteral.
charnik@932 45 (bug #33:
Konstantina@1142 46
Konstantina@1142 47 *Modified the NQUADSTranslator so that the rewritten triples are
Konstantina@1142 48 immediately flushed to the database once they are created.
Konstantina@1142 49
Konstantina@1142 50 *In the N-Quads format, the fourth element is *optional*. Made proper
Konstantina@1142 51 modification to the storage manager to coply to the specification
Konstantina@1142 52 described here: Now files in
Konstantina@1142 53 NQUADS format can contain quads *or* triples in order to be stored
Konstantina@1142 54 successfully in Strabon.
Konstantina@1142 55
Konstantina@1142 56 *Fixed bug that occurs when storing periods having "UC" as ending
Konstantina@1142 57 point.
Konstantina@1142 58
Konstantina@1142 59 *Added an initial set of tests on temporal operations in the
Konstantina@1142 60 testsuite module.
Konstantina@1158 61
Konstantina@1158 62 *Completed support for temporal updates
Konstantina@1158 63
Konstantina@1158 64 *Moved vocabulary related to the temporal features of Strabon to the
Konstantina@1158 65 respective "vocabulary" project
charnik@932 66
Konstantina@1168 67 *The evaluation of temporal joins in the database does not produce
Konstantina@1168 68 cartesian products in the database
charnik@932 69
kallirroi@1143 70 * GeoSPARQL functions sfCrosses, sfOverlaps, ehOverlaps do not use the
kallirroi@1143 71 ST_Relate PostGIS function (bug #24:
kallirroi@1143 72
kallirroi@1143 73 * All Simple Features functions of GeoSPARQL do not use the ST_Relate
kallirroi@1143 74 PostGIS function
psmeros@1176 75
Konstantina@1174 76 * Added diffTime function. This function performs the difference
Konstantina@1174 77 between two literals of xsd:time datatype and returns a literal of
Konstantina@1174 78 the xsd:time datatype as well.
psmeros@1175 79
psmeros@1175 80 * Added a testsuite package in default branch. Full tester guide can be found
psmeros@1175 81 in README. Among other, most of GeoSPARQL compliance tests
psmeros@1175 82 (, pg. 53) have been
psmeros@1175 83 implemented.
kallirroi@1143 84
charnik@927 85 Tue Mar 26 13:28:26 2013 Pyravlos Team
charnik@645 86
charnik@853 87 * Version 3.2.8 released.
charnik@853 88
charnik@926 89 * Added support for handling (storing/querying) GeoSPARQL datatypes.
charnik@926 90 (bug #31:
charnik@926 91
charnik@926 92 * Fixed a bug in StoreOp that wouldn't close the connection, neither
charnik@926 93 rollback the transaction upon an exception. This had as a side effect
charnik@926 94 the abnormal termination of StoreOp (through for example the use of
charnik@926 95 Ctrl-C signal) which was leaving the database locked.
charnik@926 96
charnik@926 97 * Fixed bug where spatial aggregates (e.g., union) didn't work as
charnik@926 98 expected when the query didn't contain a `GROUP BY' clause.
charnik@926 99 (bug #22:
charnik@926 100
charnik@926 101 * Updated GeoSPARQL namespaces and fixed function names to comply with
charnik@926 102 the GeoSPARQL specification.
charnik@926 103 (bug #25:
Konstantina@1142 104
Konstantina@1142 105 *Added preliminary tests on temporal functions in the respective
Konstantina@1142 106 "test" package of the runtime module.
Konstantina@1142 107
Konstantina@1142 108 *Added option to strabon and endpoint scripts to support storing
Konstantina@1142 109 files in NQUADS format.
Konstantina@1142 110
Konstantina@1142 111 *When a large file in NQUADS format is going to be stored, it is
Konstantina@1142 112 partitioned and stored in parts. This happens because the translation
Konstantina@1142 113 of quads to triples is a memory intensive job, so, translating and
Konstantina@1142 114 storing the file in batches increases performance.
Konstantina@1142 115
charnik@926 116
charnik@853 117 Wed Jan 09 18:06:41 2013 Pyravlos Team
charnik@853 118
kkyzir@801 119 * Version 3.2.7 released.
kkyzir@801 120
ggarbis@854 121 * Add an extension function
ggarbis@854 122 <> for computing the
ggarbis@854 123 span (in milliseconds) between two timestamps.
ggarbis@854 124
ggarbis@854 125 * Added an <endpoint-exec> module. This module builds an executable jar file
ggarbis@854 126 with an embedded Apache Tomcat 7. To create and run the executable jar just
ggarbis@854 127 type:
ggarbis@854 128 $ mvn clean package
ggarbis@854 129 $ java -jar endpoint-exec/target/strabon-endpoint-executable-*.jar
charnik@853 130
charnik@810 131 * Modified strabon script and postgis/monetdb.StoreOP class to get an
charnik@810 132 option for storing a RDF file in a named graph. Moreover, the RDF
charnik@810 133 format of the input RDF file now is given as an option (still, if it
charnik@810 134 is missing, it is assumed that the input is in N-TRIPLES format). The
charnik@810 135 option for the format is -f and the option for the named graph is -g
charnik@810 136 (takes a URI as an argument).
charnik@810 137
kkyzir@801 138 * Modified the names of the stSPARQL extension functions that
kkyzir@801 139 utilize the minimum bounding boxes of the involved geometries.
Konstantina@1142 140
Konstantina@1142 141 *Fixed bug in the evaluation of temporal constructs.
Konstantina@1142 142
Konstantina@1142 143 *Fixed a major bug that occured when a temporal variable that also took part
Konstantina@1142 144 in a temporal join was projected.
Konstantina@1142 145
Konstantina@1142 146 *Renamed temporal extension functions to comply with the respective
Konstantina@1142 147 functions of Allen's temporal relations.
Konstantina@1142 148
Konstantina@1142 149 *Modified the implementation of the temporal relation functions
Konstantina@1142 150 "meets", "starts", "finishes", to comply with the semantics of the
Konstantina@1142 151 respective functions of Allen. These functions are not supported by
Konstantina@1142 152 PostgreSQL Temporal, so, in order to be evaluated in the database
Konstantina@1142 153 level, we implemented them as PostgreSQL extension functions.
Konstantina@1142 154 ATTENTION: In order to use these functions, the respective sql script
Konstantina@1142 155 that includes them should be loaded to the the temporally (and spa-
Konstantina@1142 156 tially) enabled database.
Konstantina@1142 157
kkyzir@801 158
charnik@811 159 Tue Dec 11 19:33:45 2012 Pyravlos Team
charnik@811 160
kkyzir@800 161 * Version 3.2.6 released.
kkyzir@800 162
kkyzir@800 163 * Modified the names of the stSPARQL extension functions to comply
kkyzir@801 164 with the OGC Simple Features Access standard.
kkyzir@800 165
charnik@811 166 Tue Dec 11 00:11:43 2012 Pyravlos Team
charnik@811 167
charnik@645 168 * Version 3.2.5 released.
charnik@645 169
Konstantina@1142 170 * Added support for storing and querying temporal information.
Konstantina@1142 171 This functionality may be found in the `temporals' branch.
Konstantina@848 172
Konstantina@1142 173 *The datatypes <> and
charnik@849 174 <> are used to
Konstantina@1142 175 represent periods and instants respectively.
Konstantina@848 176
Konstantina@1142 177 *The valid time time of triples is represented using quadtruples,
charnik@849 178 with the valid time annotation(instant or period) being the
Konstantina@1142 179 fourth element of the quad. Into this direction:
Konstantina@1142 180 *Strabon has been extended to support the NQUADS format. The
Konstantina@1142 181 respective Sesame packages (of version 2.6.9) that support
Konstantina@1142 182 this format are used.
Konstantina@1142 183
Konstantina@1142 184 *NQuadTranslator class has been created. This class uses the
Konstantina@1142 185 NQUADS parser which is available here:
Konstantina@1142 186 The initial version of this parser did not include support
Konstantina@1142 187 for literals as the fourth element of the quad. We exteded
Konstantina@1142 188 it to support the valid time representations described above.
Konstantina@1142 189
Konstantina@1142 190 *The NQUADSTranslator translates quads into triples using the
Konstantina@1142 191 named graph approach, similar to the one proposed by Tappolet
Konstantina@1142 192 et al. and described in
Konstantina@1142 193
Konstantina@1142 194 *The rdbms level of Strabon has been extended to (i) support
Konstantina@1142 195 tha period datatype (ii) store the period values in the table
Konstantina@1142 196 period_values(id, period). The period column is of the period
Konstantina@1142 197 datatype, offered by the PostgreSQL Temporal extension (
Konstantina@1142 198 Also, a GiST index is created on this column.
Konstantina@1142 199
Konstantina@1142 200 *A rewriting mechanism that converts quad graph patterns into
Konstantina@1142 201 triple partners using the named graphs approach has been
Konstantina@1142 202 implemented as a method of the runtime.generaldb.Strabon
Konstantina@1142 203 class.
Konstantina@1142 204
Konstantina@1142 205 *A big part of the temporal functions of stSPARQL has been
Konstantina@1142 206 imlemented. These functions include:
Konstantina@1142 207 *The temporal relation functions during, periodOverlaps,
Konstantina@1142 208 equalsPeriod, nequalsPeriod, adjacent, before, after,
Konstantina@1142 209 overleft, overright, meets, starts, finishes.
Konstantina@1142 210
Konstantina@1142 211 *The period constructors period_intersect, period_union,
Konstantina@1142 212 preceding_period, and succeeding_period. The last two
Konstantina@1142 213 constructors are implemented using the jtemporal library.
Konstantina@1142 214 The other functions are implemented in the database,
Konstantina@1142 215 being mapped into the respective functions of PostgreSQL
Konstantina@1142 216 Temporal. A complete reference of PostgreSQL Temporal
Konstantina@1142 217 can be found here:
Konstantina@1142 218
Konstantina@1142 219 *The temporal constants "NOW" and "UC" (Until Changed)
Konstantina@1142 220 are supported.
Konstantina@1142 221
Konstantina@1142 222 *The vocabulary of the valid time dimension of stSPARQL can
Konstantina@1142 223 be found at the TemporalConstants class of the evaluation
Konstantina@1142 224 module.
Konstantina@1142 225
charnik@759 226 * Changed behaviour of Strabon and Strabon Endpoint for connecting to
charnik@759 227 a spatially-enabled database. Only one instance of Strabon is allowed
charnik@759 228 at a time.
charnik@759 229
charnik@688 230 * Implemented a Java client for Strabon Endpoint. The client should be
charnik@688 231 used only with endpoint versions >=3.2.5. The implementation may be
charnik@688 232 found int the `endpoint-client' submodule of maven. Currently, only
charnik@688 233 querying of Strabon Endpoints is supported.
charnik@688 234
charnik@662 235 * Added support for requesting the capabilities of Strabon Endpoint
charnik@662 236 (fixes Bug #20 <>). See
charnik@662 237 changesets f840796400bf and ?<TBC>? for specific details and how you
charnik@662 238 can determine the capabilities of older endpoints (versions <= 3.2.4).
charnik@662 239
charnik@658 240 * Updated KML writer to include the projected variables of an stSPARQL
charnik@658 241 query in "ExtendedData" and "Data" tags. This is the proper way to
charnik@658 242 do it if we need to convert a KML to a ESRI shapefile and also include
charnik@658 243 such information as attributes for a feature. See related pages from
charnik@658 244 KML specification:
charnik@658 245 <>
charnik@658 246 <>
charnik@658 247
charnik@645 248 * Added user authentication for storing RDF data through Strabon
charnik@662 249 Endpoint. The credentials are specified in
charnik@662 250 WEB-INF/ file.
charnik@645 251
charnik@645 252 * Strabon Endpoints now limits the number of the results to a maximum
charnik@645 253 one. The maximum number is specified in the beans.xml file. This
charnik@645 254 corresponds to parameter "maxLimit". The endpoint script has also been
charnik@645 255 updated correspondingly; the limit can be given using the option "-l".
charnik@645 256 One can disable limiting of query results, by setting the "maxLimit"
charnik@645 257 parameter to 0. Addresses Bug #6
charnik@645 258 (<>).
charnik@645 259
charnik@645 260 * Added "Known Issues" section to README.
charnik@645 261
charnik@645 262 * Added -m (more memory) and -M (much more memory) options in strabon
charnik@645 263 script for out-of-memory exceptions.
charnik@645 264
charnik@849 265 * Fixed Bug #10 (<>). Now
charnik@849 266 KMLWriter handles more geometric types (other than polygons). See
charnik@849 267 changeset 9a3bfee64a39.
charnik@645 268
charnik@645 269 * Menu and navigation in Strabon Endpoint has changed to use jquery.
charnik@645 270 The menu is now populated using the queries placed inside the beans.xml.
charnik@645 271
charnik@645 272 * Added BrowseBean and browse.jsp for browsing the RDF data using the
charnik@645 273 Strabon Endpoint.