view ChangeLog @ 1437:0f5d155b0feb

updated ChangeLog
author Stella Giannakopoulou <>
date Wed Oct 22 12:46:56 2014 +0300 (2014-10-22)
parents ba22266d4fe1
children ebb6f2f3a12b
line source
1 * Fixed a bug that would not return the correct result or would fail
2 when a spatial function involved a constant and a variable.
3 (bug #74:
5 * Fixed a bug that would not return the correct spatial datatype of a
6 projected geometry literal stored in the database.
7 (bug #71:
9 * Now, geometries expressed in CRS84 and a `geo:wktLiteral' datatype
10 are assigned the correct CRS, i.e., EPSG:4326 with a longitude
11 latitude axis order.
13 * Now, we report a parse error when a constant geometry given in a
14 SELECT or HAVING clause is not well-formed according to the WKT
15 specification.
16 (bug #69:
18 * Function `geof:convexHull' is now supported in a Having clause.
20 * Fixed older implementation of `strdf:distance' that would expect two
21 arguments instead of three when present in a HAVING clause.
23 * Fixed a bug that would cause a class cast exception for grounded
24 expressions with function nesting in the SELECT or HAVING clause.
26 * Fixed a bug in which `postgis:ST_Centroid' did not work in the SELECT
27 clause with input geometries from the database.
29 * Fixed a bug that `geof:getSRID' would return an integer instead of a
30 the URI corrresponding to the CRS that the input geometry was
31 expressed.
32 (bug #32:
34 * Fixed a bug that would raise an exception for queries involving two
35 UNION graph patterns and a projection to a predicate or a URI in
36 general.
37 (bug #53:
39 Wed Sep 17 20:14:12 2014 Pyravlos Team
41 * Version 3.2.10 released.
43 * The test suite of Strabon has now reached a mature level. It
44 contains tests for both stSPARQL and GeoSPARQL query languages and
45 most of the compliance tests covered in the specification of
46 GeoSPARQL (well, only those tests for the components that we have
47 chosen to implement).
49 * The endpoint now parses Accept headers with multiple values and uses
50 the first mimetype corresponding to a valid stSPARQLQueryResultFormat.
51 (bug #64:
53 * The endpoint now registers a handler for SIGTERM signals, so that if
54 it is run from the command-line (endpoint-exec), then the closing of
55 the connection will be ultimately called.
56 (bug #40:
58 * Strabon goes debian v1. the endpoint-exec jar is now given in a .deb
59 format. By dpkg-ing it, one can run a stand alone strabon endpoint
60 locally.
61 (bug #45
63 * Fixed a bug in which Strabon hanged when a unary spatial construct
64 had a ternary spatial construct as argument.
65 (bug #45
67 * Fixed a bug according to which spatial functions in ORDER BY were not
68 evaluated at all.
69 (bug #62:
71 * Fixed a bug according to which spatial boolean functions appearing
72 in the SELECT clause were raising a NULL pointer exception.
73 (bug #34:
75 * Fixed a bug in queries that contain variables that exist inside
76 spatial functions in select and do not exist in the where clause
77 made Strabon throw a NULL pointer exception.
78 (bug #51
80 * Various changes in the interface and behavior of Strabon Endpoint:
81 - Revised the logos and the sample queries.
82 - Results query limit is set to zero (unlimited).
83 - Users can now store RDF data that is present in a file on the
84 client side (the file is uploaded to the server).
85 - Credentials are now required for uploading files or executing
86 UPDATE queries, unless Strabon Endpoint runs locally (localhost).
87 - When viewing the results of queries in HTML, any URI is now an
88 active link to itself. Previously, that URI was being DESCRIBEd
89 and one was being transferred to a page viewing the result of the
90 DESCRIBE query.
91 - The DESCRIBE functionality can now be accessed through the menu bar.
93 * Fixed a bug where strdf:intersection function did not work as an
94 aggregate when used without 'GROUP BY'.
95 (bug #46
98 Sat Oct 19 23:37:23 2013 Pyravlos Team
100 * Version 3.2.9 released.
102 * Added support for the following google chart types: PieChart,
103 AreaChart and ColumnChart to strabon endpoint.
105 * Added Timemap as new results format in Strabon endpoint. This
106 option displays results in a map and a timeline on the same time,
107 using the Timemap js library (
108 The KMLWriter has been extended for that purpose, by transforming
109 dateTime values that are included in the result set into the respective
110 TimeStamp KML primitive (
111 In the "temporals" branch, the values of the strdf:period datatype
112 are converted into the respective KML TimeSpan primitive.
114 * Added extension function <> which is
115 mapped to the ST_Centroid(geometry) extension function of PostGIS.
116 See also: <>.
118 * Added extension function <> which is
119 mapped to the ST_MakeLine(geometry, geometry) extension function of
120 PostGIS. See also: <>.
122 * Added PostGIS vocabulary class.
124 * Added support of all SPARQL result types provided by Sesame (json,
125 xml, csv, tsv, binary). To get the respective writer, just prepend the
126 string "SPARQL/", e.g., "SPARQL/JSON". This is to ensure that we
127 support all SPARQL result formats of the SPARQL Protocol.
129 * Fixed a bug where a non-implemented extension function would make
130 Strabon throw a NULL pointer exception. Now we get away with it
131 through a warning.
133 * Strabon endpoint now publishes the URIs of the supported units of
134 measure for use in strdf:distance and geof:distance functions of
135 stSPARQL and GeoSPARQL, respectively. The URIs are those defined by
136 OGC Units of Measure 1.0 specification which may be found at
137 Strabon endpoint publishes
138 the URIs at http://localhost:8080/endpoint/Capabilities.
140 * Created new module with name 'vocab` and artifactId
141 'strabon-vocabulary` and moved there. Other
142 vocabularies have been added as well, such as Simple Features, and
143 GeoSPARQL.
145 * Strabon endpoint now publishes the URIs of the supported extension
146 functions for stSPARQL and GeoSPARQL. One should access them by
147 hitting the link http://localhost:8080/endpoint/Capabilities.
149 * Support for parsing EPSG URIs in geometry literals with datatype
150 geo:wktLiteral.
151 (bug #33:
153 * Endpoint Client now supports querying of Virtuoso and Parliament endpoints.
155 * Endpoint Client now supports store and update operations, but only
156 for Strabon Endpoints.
158 * GeoSPARQL functions sfCrosses, sfOverlaps, ehOverlaps do not use the
159 ST_Relate PostGIS function (bug #24:
161 * All Simple Features functions of GeoSPARQL do not use the ST_Relate
162 PostGIS function
164 * Added diffTime function. This function performs the difference
165 between two literals of xsd:time datatype and returns a literal of
166 the xsd:time datatype as well.
168 * Added a testsuite package in default branch. Full tester guide can be found
169 in README. Among other, most of GeoSPARQL compliance tests
170 (, pg. 53) have been
171 implemented.
173 * Changed the definition and implementation of strdf:distance function, by
174 adopting the definition of GeoSPARQL.
175 (bug #23:
177 * Changed the definition and implementation of strdf:buffer function, by
178 adopting the definition of GeoSPARQL.
179 (bug #35:
181 * Added geof:distance and geof:buffer functions, which have the same definition
182 with strdf:distance and strdf:buffer respectively.
183 (bug #32:
185 * Added a download button when performing describe and construct queries at the
186 endpoint.
187 (bug #38:
189 * Fixed a bug, where XMLWriter and TSVWriter did not return geometries with the
190 SRID.
191 (bug #47:
193 * Fixed a bug where the GeoSPARQL construct functions did not return the datatype
194 geo:wktLiteral datatype but strdf:WKT.
196 Tue Mar 26 13:28:26 2013 Pyravlos Team
198 * Version 3.2.8 released.
200 * Added support for handling (storing/querying) GeoSPARQL datatypes.
201 (bug #31:
203 * Fixed a bug in StoreOp that wouldn't close the connection, neither
204 rollback the transaction upon an exception. This had as a side effect
205 the abnormal termination of StoreOp (through for example the use of
206 Ctrl-C signal) which was leaving the database locked.
208 * Fixed bug where spatial aggregates (e.g., union) didn't work as
209 expected when the query didn't contain a `GROUP BY' clause.
210 (bug #22:
212 * Updated GeoSPARQL namespaces and fixed function names to comply with
213 the GeoSPARQL specification.
214 (bug #25:
216 Wed Jan 09 18:06:41 2013 Pyravlos Team
218 * Version 3.2.7 released.
220 * Add an extension function
221 <> for computing the
222 span (in milliseconds) between two timestamps.
224 * Added an <endpoint-exec> module. This module builds an executable jar file
225 with an embedded Apache Tomcat 7. To create and run the executable jar just
226 type:
227 $ mvn clean package
228 $ java -jar endpoint-exec/target/strabon-endpoint-executable-*.jar
230 * Modified strabon script and postgis/monetdb.StoreOP class to get an
231 option for storing a RDF file in a named graph. Moreover, the RDF
232 format of the input RDF file now is given as an option (still, if it
233 is missing, it is assumed that the input is in N-TRIPLES format). The
234 option for the format is -f and the option for the named graph is -g
235 (takes a URI as an argument).
237 * Modified the names of the stSPARQL extension functions that
238 utilize the minimum bounding boxes of the involved geometries.
240 Tue Dec 11 19:33:45 2012 Pyravlos Team
242 * Version 3.2.6 released.
244 * Modified the names of the stSPARQL extension functions to comply
245 with the OGC Simple Features Access standard.
247 Tue Dec 11 00:11:43 2012 Pyravlos Team
249 * Version 3.2.5 released.
251 * Added support for querying temporal information. This functionality
252 may be found in the `temporals' branch.
254 The datatypes <> and
255 <> are used to
256 represent periods and instants respectively.
258 The valid time time of triples is represented using quadtruples,
259 with the valid time annotation(instant or period) being the
260 fourth element of the quad. In the same way, temporal triple
261 patterns are used in queries to retrieve the valid time of
262 triples.
264 Some functions have been renamed (their URIs have changed) to
265 follow the names of the respective relations of Allen's
266 interval algebra and other functions have been added.
268 The following temporal functions are supported:
269 during, periodOverlaps, equalsPeriod, nequalsPeriod, adjacent,
270 before, after, overleft, overright, meets, starts, finishes,
271 period_intersect, period_union, preceding_period, and
272 succeeding_period.
274 * Changed behaviour of Strabon and Strabon Endpoint for connecting to
275 a spatially-enabled database. Only one instance of Strabon is allowed
276 at a time.
278 * Implemented a Java client for Strabon Endpoint. The client should be
279 used only with endpoint versions >=3.2.5. The implementation may be
280 found int the `endpoint-client' submodule of maven. Currently, only
281 querying of Strabon Endpoints is supported.
283 * Added support for requesting the capabilities of Strabon Endpoint
284 (fixes Bug #20 <>). See
285 changesets f840796400bf and ?<TBC>? for specific details and how you
286 can determine the capabilities of older endpoints (versions <= 3.2.4).
288 * Updated KML writer to include the projected variables of an stSPARQL
289 query in "ExtendedData" and "Data" tags. This is the proper way to
290 do it if we need to convert a KML to a ESRI shapefile and also include
291 such information as attributes for a feature. See related pages from
292 KML specification:
293 <>
294 <>
296 * Added user authentication for storing RDF data through Strabon
297 Endpoint. The credentials are specified in
298 WEB-INF/ file.
300 * Strabon Endpoints now limits the number of the results to a maximum
301 one. The maximum number is specified in the beans.xml file. This
302 corresponds to parameter "maxLimit". The endpoint script has also been
303 updated correspondingly; the limit can be given using the option "-l".
304 One can disable limiting of query results, by setting the "maxLimit"
305 parameter to 0. Addresses Bug #6
306 (<>).
308 * Added "Known Issues" section to README.
310 * Added -m (more memory) and -M (much more memory) options in strabon
311 script for out-of-memory exceptions.
313 * Fixed Bug #10 (<>). Now
314 KMLWriter handles more geometric types (other than polygons). See
315 changeset 9a3bfee64a39.
317 * Menu and navigation in Strabon Endpoint has changed to use jquery.
318 The menu is now populated using the queries placed inside the beans.xml.
320 * Added BrowseBean and browse.jsp for browsing the RDF data using the
321 Strabon Endpoint.