view ChangeLog @ 1465:bc81967ce8ce

author Giannis Vlachopoulos <>
date Fri Jan 23 16:23:21 2015 +0200 (2015-01-23)
parents c56f16b4fb1a
children fdbcb246115b
line source
1 * Related to bug #58, but it generally enhances Strabon; The runtime
2 component has also been debianized. Dependencies are added to
3 /usr/share/jdeb/lib/strabon-runtime. ClassPath and strabon script
4 have also been updated accordingly (strabon-cmd)
6 * Bug #58: Maven creates the debian package conditionally. Use
7 -Ddebian=true in the mvn package command.
9 * Bug #58: Added dependencies - java, postgresql, tomcat. Also, added
10 a strabon-init script that detects the postgis installation path
11 and sets up the template_postgis. Finally the script creates a db
12 called "endpoint" (assuming it does not already exist) that is used
13 for the strabon-endpoint command.
15 * Fixed a bug that would return no results when a variable that results
16 from a BIND clause appears in the FILTER or in the projection of a
17 query and is inside a spatial function.
18 (bug #78:
20 * Fixed the precision of the geometry literals in GeoJSON writer. Now,
21 this defaults to the precision model of JTS (equals to 16). Prior to
22 this it was fixed to 4.
24 * Now the GeoJSON writer is aware of the kind of typed literals (e.g.,
25 numeric, boolean, calendar, etc.) and prints the corresponding
26 values according to these types.
28 * Fixed a bug that would not return the correct result or would fail
29 when a spatial function involved a constant and a variable.
30 (bug #74:
32 * Fixed a bug that would not return the correct spatial datatype of a
33 projected geometry literal stored in the database.
34 (bug #71:
36 * Now, geometries expressed in CRS84 and a `geo:wktLiteral' datatype
37 are assigned the correct CRS, i.e., EPSG:4326 with a longitude
38 latitude axis order.
40 * Now, we report a parse error when a constant geometry given in a
41 SELECT or HAVING clause is not well-formed according to the WKT
42 specification.
43 (bug #69:
45 * Function `geof:convexHull' is now supported in a Having clause.
47 * Fixed older implementation of `strdf:distance' that would expect two
48 arguments instead of three when present in a HAVING clause.
50 * Fixed a bug that would cause a class cast exception for grounded
51 expressions with function nesting in the SELECT or HAVING clause.
53 * Fixed a bug in which `postgis:ST_Centroid' did not work in the SELECT
54 clause with input geometries from the database.
56 * Fixed a bug that `geof:getSRID' would return an integer instead of a
57 the URI corrresponding to the CRS that the input geometry was
58 expressed.
59 (bug #32:
61 * Fixed a bug that would raise an exception for queries involving two
62 UNION graph patterns and a projection to a predicate or a URI in
63 general.
64 (bug #53:
66 Wed Sep 17 20:14:12 2014 Pyravlos Team
68 * Version 3.2.10 released.
70 * The test suite of Strabon has now reached a mature level. It
71 contains tests for both stSPARQL and GeoSPARQL query languages and
72 most of the compliance tests covered in the specification of
73 GeoSPARQL (well, only those tests for the components that we have
74 chosen to implement).
76 * The endpoint now parses Accept headers with multiple values and uses
77 the first mimetype corresponding to a valid stSPARQLQueryResultFormat.
78 (bug #64:
80 * The endpoint now registers a handler for SIGTERM signals, so that if
81 it is run from the command-line (endpoint-exec), then the closing of
82 the connection will be ultimately called.
83 (bug #40:
85 * Strabon goes debian v1. the endpoint-exec jar is now given in a .deb
86 format. By dpkg-ing it, one can run a stand alone strabon endpoint
87 locally.
88 (bug #45
90 * Fixed a bug in which Strabon hanged when a unary spatial construct
91 had a ternary spatial construct as argument.
92 (bug #45
94 * Fixed a bug according to which spatial functions in ORDER BY were not
95 evaluated at all.
96 (bug #62:
98 * Fixed a bug according to which spatial boolean functions appearing
99 in the SELECT clause were raising a NULL pointer exception.
100 (bug #34:
102 * Fixed a bug in queries that contain variables that exist inside
103 spatial functions in select and do not exist in the where clause
104 made Strabon throw a NULL pointer exception.
105 (bug #51
107 * Various changes in the interface and behavior of Strabon Endpoint:
108 - Revised the logos and the sample queries.
109 - Results query limit is set to zero (unlimited).
110 - Users can now store RDF data that is present in a file on the
111 client side (the file is uploaded to the server).
112 - Credentials are now required for uploading files or executing
113 UPDATE queries, unless Strabon Endpoint runs locally (localhost).
114 - When viewing the results of queries in HTML, any URI is now an
115 active link to itself. Previously, that URI was being DESCRIBEd
116 and one was being transferred to a page viewing the result of the
117 DESCRIBE query.
118 - The DESCRIBE functionality can now be accessed through the menu bar.
120 * Fixed a bug where strdf:intersection function did not work as an
121 aggregate when used without 'GROUP BY'.
122 (bug #46
125 Sat Oct 19 23:37:23 2013 Pyravlos Team
127 * Version 3.2.9 released.
129 * Added support for the following google chart types: PieChart,
130 AreaChart and ColumnChart to strabon endpoint.
132 * Added Timemap as new results format in Strabon endpoint. This
133 option displays results in a map and a timeline on the same time,
134 using the Timemap js library (
135 The KMLWriter has been extended for that purpose, by transforming
136 dateTime values that are included in the result set into the respective
137 TimeStamp KML primitive (
138 In the "temporals" branch, the values of the strdf:period datatype
139 are converted into the respective KML TimeSpan primitive.
141 * Added extension function <> which is
142 mapped to the ST_Centroid(geometry) extension function of PostGIS.
143 See also: <>.
145 * Added extension function <> which is
146 mapped to the ST_MakeLine(geometry, geometry) extension function of
147 PostGIS. See also: <>.
149 * Added PostGIS vocabulary class.
151 * Added support of all SPARQL result types provided by Sesame (json,
152 xml, csv, tsv, binary). To get the respective writer, just prepend the
153 string "SPARQL/", e.g., "SPARQL/JSON". This is to ensure that we
154 support all SPARQL result formats of the SPARQL Protocol.
156 * Fixed a bug where a non-implemented extension function would make
157 Strabon throw a NULL pointer exception. Now we get away with it
158 through a warning.
160 * Strabon endpoint now publishes the URIs of the supported units of
161 measure for use in strdf:distance and geof:distance functions of
162 stSPARQL and GeoSPARQL, respectively. The URIs are those defined by
163 OGC Units of Measure 1.0 specification which may be found at
164 Strabon endpoint publishes
165 the URIs at http://localhost:8080/endpoint/Capabilities.
167 * Created new module with name 'vocab` and artifactId
168 'strabon-vocabulary` and moved there. Other
169 vocabularies have been added as well, such as Simple Features, and
170 GeoSPARQL.
172 * Strabon endpoint now publishes the URIs of the supported extension
173 functions for stSPARQL and GeoSPARQL. One should access them by
174 hitting the link http://localhost:8080/endpoint/Capabilities.
176 * Support for parsing EPSG URIs in geometry literals with datatype
177 geo:wktLiteral.
178 (bug #33:
180 * Endpoint Client now supports querying of Virtuoso and Parliament endpoints.
182 * Endpoint Client now supports store and update operations, but only
183 for Strabon Endpoints.
185 * GeoSPARQL functions sfCrosses, sfOverlaps, ehOverlaps do not use the
186 ST_Relate PostGIS function (bug #24:
188 * All Simple Features functions of GeoSPARQL do not use the ST_Relate
189 PostGIS function
191 * Added diffTime function. This function performs the difference
192 between two literals of xsd:time datatype and returns a literal of
193 the xsd:time datatype as well.
195 * Added a testsuite package in default branch. Full tester guide can be found
196 in README. Among other, most of GeoSPARQL compliance tests
197 (, pg. 53) have been
198 implemented.
200 * Changed the definition and implementation of strdf:distance function, by
201 adopting the definition of GeoSPARQL.
202 (bug #23:
204 * Changed the definition and implementation of strdf:buffer function, by
205 adopting the definition of GeoSPARQL.
206 (bug #35:
208 * Added geof:distance and geof:buffer functions, which have the same definition
209 with strdf:distance and strdf:buffer respectively.
210 (bug #32:
212 * Added a download button when performing describe and construct queries at the
213 endpoint.
214 (bug #38:
216 * Fixed a bug, where XMLWriter and TSVWriter did not return geometries with the
217 SRID.
218 (bug #47:
220 * Fixed a bug where the GeoSPARQL construct functions did not return the datatype
221 geo:wktLiteral datatype but strdf:WKT.
223 Tue Mar 26 13:28:26 2013 Pyravlos Team
225 * Version 3.2.8 released.
227 * Added support for handling (storing/querying) GeoSPARQL datatypes.
228 (bug #31:
230 * Fixed a bug in StoreOp that wouldn't close the connection, neither
231 rollback the transaction upon an exception. This had as a side effect
232 the abnormal termination of StoreOp (through for example the use of
233 Ctrl-C signal) which was leaving the database locked.
235 * Fixed bug where spatial aggregates (e.g., union) didn't work as
236 expected when the query didn't contain a `GROUP BY' clause.
237 (bug #22:
239 * Updated GeoSPARQL namespaces and fixed function names to comply with
240 the GeoSPARQL specification.
241 (bug #25:
243 Wed Jan 09 18:06:41 2013 Pyravlos Team
245 * Version 3.2.7 released.
247 * Add an extension function
248 <> for computing the
249 span (in milliseconds) between two timestamps.
251 * Added an <endpoint-exec> module. This module builds an executable jar file
252 with an embedded Apache Tomcat 7. To create and run the executable jar just
253 type:
254 $ mvn clean package
255 $ java -jar endpoint-exec/target/strabon-endpoint-executable-*.jar
257 * Modified strabon script and postgis/monetdb.StoreOP class to get an
258 option for storing a RDF file in a named graph. Moreover, the RDF
259 format of the input RDF file now is given as an option (still, if it
260 is missing, it is assumed that the input is in N-TRIPLES format). The
261 option for the format is -f and the option for the named graph is -g
262 (takes a URI as an argument).
264 * Modified the names of the stSPARQL extension functions that
265 utilize the minimum bounding boxes of the involved geometries.
267 Tue Dec 11 19:33:45 2012 Pyravlos Team
269 * Version 3.2.6 released.
271 * Modified the names of the stSPARQL extension functions to comply
272 with the OGC Simple Features Access standard.
274 Tue Dec 11 00:11:43 2012 Pyravlos Team
276 * Version 3.2.5 released.
278 * Added support for querying temporal information. This functionality
279 may be found in the `temporals' branch.
281 The datatypes <> and
282 <> are used to
283 represent periods and instants respectively.
285 The valid time time of triples is represented using quadtruples,
286 with the valid time annotation(instant or period) being the
287 fourth element of the quad. In the same way, temporal triple
288 patterns are used in queries to retrieve the valid time of
289 triples.
291 Some functions have been renamed (their URIs have changed) to
292 follow the names of the respective relations of Allen's
293 interval algebra and other functions have been added.
295 The following temporal functions are supported:
296 during, periodOverlaps, equalsPeriod, nequalsPeriod, adjacent,
297 before, after, overleft, overright, meets, starts, finishes,
298 period_intersect, period_union, preceding_period, and
299 succeeding_period.
301 * Changed behaviour of Strabon and Strabon Endpoint for connecting to
302 a spatially-enabled database. Only one instance of Strabon is allowed
303 at a time.
305 * Implemented a Java client for Strabon Endpoint. The client should be
306 used only with endpoint versions >=3.2.5. The implementation may be
307 found int the `endpoint-client' submodule of maven. Currently, only
308 querying of Strabon Endpoints is supported.
310 * Added support for requesting the capabilities of Strabon Endpoint
311 (fixes Bug #20 <>). See
312 changesets f840796400bf and ?<TBC>? for specific details and how you
313 can determine the capabilities of older endpoints (versions <= 3.2.4).
315 * Updated KML writer to include the projected variables of an stSPARQL
316 query in "ExtendedData" and "Data" tags. This is the proper way to
317 do it if we need to convert a KML to a ESRI shapefile and also include
318 such information as attributes for a feature. See related pages from
319 KML specification:
320 <>
321 <>
323 * Added user authentication for storing RDF data through Strabon
324 Endpoint. The credentials are specified in
325 WEB-INF/ file.
327 * Strabon Endpoints now limits the number of the results to a maximum
328 one. The maximum number is specified in the beans.xml file. This
329 corresponds to parameter "maxLimit". The endpoint script has also been
330 updated correspondingly; the limit can be given using the option "-l".
331 One can disable limiting of query results, by setting the "maxLimit"
332 parameter to 0. Addresses Bug #6
333 (<>).
335 * Added "Known Issues" section to README.
337 * Added -m (more memory) and -M (much more memory) options in strabon
338 script for out-of-memory exceptions.
340 * Fixed Bug #10 (<>). Now
341 KMLWriter handles more geometric types (other than polygons). See
342 changeset 9a3bfee64a39.
344 * Menu and navigation in Strabon Endpoint has changed to use jquery.
345 The menu is now populated using the queries placed inside the beans.xml.
347 * Added BrowseBean and browse.jsp for browsing the RDF data using the
348 Strabon Endpoint.