view ChangeLog @ 1424:c8cc4daeeafa

corrected tests that were expecting a WKT in 4326 to contain also the URI of the CRS; we do not include this anymore, if the CRS is the default for that datatype
author Babis Nikolaou <>
date Tue Sep 23 14:36:26 2014 +0300 (2014-09-23)
parents ea2c5395bf45
children ba22266d4fe1
line source
1 * Fixed a bug that would raise an exception for queries involving two
2 UNION graph patterns and a projection to a predicate or a URI in
3 general.
4 (bug #53:
6 Wed Sep 17 20:14:12 2014 Pyravlos Team
8 * Version 3.2.10 released.
10 * The test suite of Strabon has now reached a mature level. It
11 contains tests for both stSPARQL and GeoSPARQL query languages and
12 most of the compliance tests covered in the specification of
13 GeoSPARQL (well, only those tests for the components that we have
14 chosen to implement).
16 * The endpoint now parses Accept headers with multiple values and uses
17 the first mimetype corresponding to a valid stSPARQLQueryResultFormat.
18 (bug #64:
20 * The endpoint now registers a handler for SIGTERM signals, so that if
21 it is run from the command-line (endpoint-exec), then the closing of
22 the connection will be ultimately called.
23 (bug #40:
25 * Strabon goes debian v1. the endpoint-exec jar is now given in a .deb
26 format. By dpkg-ing it, one can run a stand alone strabon endpoint
27 locally.
28 (bug #45
30 * Fixed a bug in which Strabon hanged when a unary spatial construct
31 had a ternary spatial construct as argument.
32 (bug #45
34 * Fixed a bug according to which spatial functions in ORDER BY were not
35 evaluated at all.
36 (bug #62:
38 * Fixed a bug according to which spatial boolean functions appearing
39 in the SELECT clause were raising a NULL pointer exception.
40 (bug #34:
42 * Fixed a bug in queries that contain variables that exist inside
43 spatial functions in select and do not exist in the where clause
44 made Strabon throw a NULL pointer exception.
45 (bug #51
47 * Various changes in the interface and behavior of Strabon Endpoint:
48 - Revised the logos and the sample queries.
49 - Results query limit is set to zero (unlimited).
50 - Users can now store RDF data that is present in a file on the
51 client side (the file is uploaded to the server).
52 - Credentials are now required for uploading files or executing
53 UPDATE queries, unless Strabon Endpoint runs locally (localhost).
54 - When viewing the results of queries in HTML, any URI is now an
55 active link to itself. Previously, that URI was being DESCRIBEd
56 and one was being transferred to a page viewing the result of the
57 DESCRIBE query.
58 - The DESCRIBE functionality can now be accessed through the menu bar.
60 * Fixed a bug where strdf:intersection function did not work as an
61 aggregate when used without 'GROUP BY'.
62 (bug #46
65 Sat Oct 19 23:37:23 2013 Pyravlos Team
67 * Version 3.2.9 released.
69 * Added support for the following google chart types: PieChart,
70 AreaChart and ColumnChart to strabon endpoint.
72 * Added Timemap as new results format in Strabon endpoint. This
73 option displays results in a map and a timeline on the same time,
74 using the Timemap js library (
75 The KMLWriter has been extended for that purpose, by transforming
76 dateTime values that are included in the result set into the respective
77 TimeStamp KML primitive (
78 In the "temporals" branch, the values of the strdf:period datatype
79 are converted into the respective KML TimeSpan primitive.
81 * Added extension function <> which is
82 mapped to the ST_Centroid(geometry) extension function of PostGIS.
83 See also: <>.
85 * Added extension function <> which is
86 mapped to the ST_MakeLine(geometry, geometry) extension function of
87 PostGIS. See also: <>.
89 * Added PostGIS vocabulary class.
91 * Added support of all SPARQL result types provided by Sesame (json,
92 xml, csv, tsv, binary). To get the respective writer, just prepend the
93 string "SPARQL/", e.g., "SPARQL/JSON". This is to ensure that we
94 support all SPARQL result formats of the SPARQL Protocol.
96 * Fixed a bug where a non-implemented extension function would make
97 Strabon throw a NULL pointer exception. Now we get away with it
98 through a warning.
100 * Strabon endpoint now publishes the URIs of the supported units of
101 measure for use in strdf:distance and geof:distance functions of
102 stSPARQL and GeoSPARQL, respectively. The URIs are those defined by
103 OGC Units of Measure 1.0 specification which may be found at
104 Strabon endpoint publishes
105 the URIs at http://localhost:8080/endpoint/Capabilities.
107 * Created new module with name 'vocab` and artifactId
108 'strabon-vocabulary` and moved there. Other
109 vocabularies have been added as well, such as Simple Features, and
110 GeoSPARQL.
112 * Strabon endpoint now publishes the URIs of the supported extension
113 functions for stSPARQL and GeoSPARQL. One should access them by
114 hitting the link http://localhost:8080/endpoint/Capabilities.
116 * Support for parsing EPSG URIs in geometry literals with datatype
117 geo:wktLiteral.
118 (bug #33:
120 * Endpoint Client now supports querying of Virtuoso and Parliament endpoints.
122 * Endpoint Client now supports store and update operations, but only
123 for Strabon Endpoints.
125 * GeoSPARQL functions sfCrosses, sfOverlaps, ehOverlaps do not use the
126 ST_Relate PostGIS function (bug #24:
128 * All Simple Features functions of GeoSPARQL do not use the ST_Relate
129 PostGIS function
131 * Added diffTime function. This function performs the difference
132 between two literals of xsd:time datatype and returns a literal of
133 the xsd:time datatype as well.
135 * Added a testsuite package in default branch. Full tester guide can be found
136 in README. Among other, most of GeoSPARQL compliance tests
137 (, pg. 53) have been
138 implemented.
140 * Changed the definition and implementation of strdf:distance function, by
141 adopting the definition of GeoSPARQL.
142 (bug #23:
144 * Changed the definition and implementation of strdf:buffer function, by
145 adopting the definition of GeoSPARQL.
146 (bug #35:
148 * Added geof:distance and geof:buffer functions, which have the same definition
149 with strdf:distance and strdf:buffer respectively.
150 (bug #32:
152 * Added a download button when performing describe and construct queries at the
153 endpoint.
154 (bug #38:
156 * Fixed a bug, where XMLWriter and TSVWriter did not return geometries with the
157 SRID.
158 (bug #47:
160 * Fixed a bug where the GeoSPARQL construct functions did not return the datatype
161 geo:wktLiteral datatype but strdf:WKT.
163 Tue Mar 26 13:28:26 2013 Pyravlos Team
165 * Version 3.2.8 released.
167 * Added support for handling (storing/querying) GeoSPARQL datatypes.
168 (bug #31:
170 * Fixed a bug in StoreOp that wouldn't close the connection, neither
171 rollback the transaction upon an exception. This had as a side effect
172 the abnormal termination of StoreOp (through for example the use of
173 Ctrl-C signal) which was leaving the database locked.
175 * Fixed bug where spatial aggregates (e.g., union) didn't work as
176 expected when the query didn't contain a `GROUP BY' clause.
177 (bug #22:
179 * Updated GeoSPARQL namespaces and fixed function names to comply with
180 the GeoSPARQL specification.
181 (bug #25:
183 Wed Jan 09 18:06:41 2013 Pyravlos Team
185 * Version 3.2.7 released.
187 * Add an extension function
188 <> for computing the
189 span (in milliseconds) between two timestamps.
191 * Added an <endpoint-exec> module. This module builds an executable jar file
192 with an embedded Apache Tomcat 7. To create and run the executable jar just
193 type:
194 $ mvn clean package
195 $ java -jar endpoint-exec/target/strabon-endpoint-executable-*.jar
197 * Modified strabon script and postgis/monetdb.StoreOP class to get an
198 option for storing a RDF file in a named graph. Moreover, the RDF
199 format of the input RDF file now is given as an option (still, if it
200 is missing, it is assumed that the input is in N-TRIPLES format). The
201 option for the format is -f and the option for the named graph is -g
202 (takes a URI as an argument).
204 * Modified the names of the stSPARQL extension functions that
205 utilize the minimum bounding boxes of the involved geometries.
207 Tue Dec 11 19:33:45 2012 Pyravlos Team
209 * Version 3.2.6 released.
211 * Modified the names of the stSPARQL extension functions to comply
212 with the OGC Simple Features Access standard.
214 Tue Dec 11 00:11:43 2012 Pyravlos Team
216 * Version 3.2.5 released.
218 * Added support for querying temporal information. This functionality
219 may be found in the `temporals' branch.
221 The datatypes <> and
222 <> are used to
223 represent periods and instants respectively.
225 The valid time time of triples is represented using quadtruples,
226 with the valid time annotation(instant or period) being the
227 fourth element of the quad. In the same way, temporal triple
228 patterns are used in queries to retrieve the valid time of
229 triples.
231 Some functions have been renamed (their URIs have changed) to
232 follow the names of the respective relations of Allen's
233 interval algebra and other functions have been added.
235 The following temporal functions are supported:
236 during, periodOverlaps, equalsPeriod, nequalsPeriod, adjacent,
237 before, after, overleft, overright, meets, starts, finishes,
238 period_intersect, period_union, preceding_period, and
239 succeeding_period.
241 * Changed behaviour of Strabon and Strabon Endpoint for connecting to
242 a spatially-enabled database. Only one instance of Strabon is allowed
243 at a time.
245 * Implemented a Java client for Strabon Endpoint. The client should be
246 used only with endpoint versions >=3.2.5. The implementation may be
247 found int the `endpoint-client' submodule of maven. Currently, only
248 querying of Strabon Endpoints is supported.
250 * Added support for requesting the capabilities of Strabon Endpoint
251 (fixes Bug #20 <>). See
252 changesets f840796400bf and ?<TBC>? for specific details and how you
253 can determine the capabilities of older endpoints (versions <= 3.2.4).
255 * Updated KML writer to include the projected variables of an stSPARQL
256 query in "ExtendedData" and "Data" tags. This is the proper way to
257 do it if we need to convert a KML to a ESRI shapefile and also include
258 such information as attributes for a feature. See related pages from
259 KML specification:
260 <>
261 <>
263 * Added user authentication for storing RDF data through Strabon
264 Endpoint. The credentials are specified in
265 WEB-INF/ file.
267 * Strabon Endpoints now limits the number of the results to a maximum
268 one. The maximum number is specified in the beans.xml file. This
269 corresponds to parameter "maxLimit". The endpoint script has also been
270 updated correspondingly; the limit can be given using the option "-l".
271 One can disable limiting of query results, by setting the "maxLimit"
272 parameter to 0. Addresses Bug #6
273 (<>).
275 * Added "Known Issues" section to README.
277 * Added -m (more memory) and -M (much more memory) options in strabon
278 script for out-of-memory exceptions.
280 * Fixed Bug #10 (<>). Now
281 KMLWriter handles more geometric types (other than polygons). See
282 changeset 9a3bfee64a39.
284 * Menu and navigation in Strabon Endpoint has changed to use jquery.
285 The menu is now populated using the queries placed inside the beans.xml.
287 * Added BrowseBean and browse.jsp for browsing the RDF data using the
288 Strabon Endpoint.