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charnik@932
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1 Day Month Date Hour:Min:Sec Year Pyravlos Team
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charnik@932
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2
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charnik@932
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3 * Version 3.2.9 released.
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charnik@932
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4
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charnik@1012
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5 * Added support of all SPARQL result types provided by Sesame (json,
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charnik@1012
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6 xml, csv, tsv, binary). To get the respective writer, just prepend the
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charnik@1012
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7 string "SPARQL/", e.g., "SPARQL/JSON". This is to ensure that we
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charnik@1012
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8 support all SPARQL result formats of the SPARQL Protocol.
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charnik@1012
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9
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charnik@990
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10 * Fixed a bug where a non-implemented extension function would make
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charnik@990
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11 Strabon throw a NULL pointer exception. Now we get away with it
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charnik@990
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12 through a warning.
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charnik@990
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13
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charnik@990
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14 * Strabon endpoint now publishes the URIs of the supported units of
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charnik@990
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15 measure for use in strdf:distance and geof:distance functions of
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charnik@990
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16 stSPARQL and GeoSPARQL, respectively. The URIs are those defined by
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charnik@990
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17 OGC Units of Measure 1.0 specification which may be found at
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charnik@990
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18 http://www.opengis.net/def/uom/OGC/1.0/. Strabon endpoint publishes
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charnik@990
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19 the URIs at http://localhost:8080/endpoint/Capabilities.
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charnik@990
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20
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charnik@1004
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21 * Created new module with name 'vocab` and artifactId
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charnik@1004
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22 'strabon-vocabulary` and moved GeoConstants.java there. Other
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charnik@1004
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23 vocabularies have been added as well, such as Simple Features, and
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charnik@1004
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24 GeoSPARQL.
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charnik@966
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25
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charnik@964
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26 * Strabon endpoint now publishes the URIs of the supported extension
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charnik@964
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27 functions for stSPARQL and GeoSPARQL. One should access them by
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charnik@964
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28 hitting the link http://localhost:8080/endpoint/Capabilities.
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charnik@964
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29
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charnik@932
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30 * Support for parsing EPSG URIs in geometry literals with datatype
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charnik@932
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31 geo:wktLiteral.
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charnik@932
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32 (bug #33: http://bug.strabon.di.uoa.gr/ticket/33)
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Konstantina@1142
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33
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Konstantina@1142
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34 *Modified the NQUADSTranslator so that the rewritten triples are
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Konstantina@1142
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35 immediately flushed to the database once they are created.
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Konstantina@1142
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36
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Konstantina@1142
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37 *In the N-Quads format, the fourth element is *optional*. Made proper
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Konstantina@1142
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38 modification to the storage manager to coply to the specification
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Konstantina@1142
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39 described here: http://sw.deri.org/2008/07/n-quads/. Now files in
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Konstantina@1142
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40 NQUADS format can contain quads *or* triples in order to be stored
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Konstantina@1142
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41 successfully in Strabon.
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Konstantina@1142
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42
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Konstantina@1142
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43 *Fixed bug that occurs when storing periods having "UC" as ending
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Konstantina@1142
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44 point.
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Konstantina@1142
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45
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Konstantina@1142
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46 *Added an initial set of tests on temporal operations in the
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Konstantina@1142
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47 testsuite module.
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Konstantina@1158
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48
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Konstantina@1158
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49 *Completed support for temporal updates
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Konstantina@1158
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50
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Konstantina@1158
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51 *Moved vocabulary related to the temporal features of Strabon to the
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Konstantina@1158
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52 respective "vocabulary" project
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charnik@932
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53
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Konstantina@1168
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54 *The evaluation of temporal joins in the database does not produce
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Konstantina@1168
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55 cartesian products in the database
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Konstantina@1168
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56
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charnik@927
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57 Tue Mar 26 13:28:26 2013 Pyravlos Team
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charnik@645
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58
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charnik@853
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59 * Version 3.2.8 released.
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charnik@853
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60
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charnik@926
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61 * Added support for handling (storing/querying) GeoSPARQL datatypes.
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charnik@926
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62 (bug #31: http://bug.strabon.di.uoa.gr/ticket/31)
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charnik@926
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63
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charnik@926
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64 * Fixed a bug in StoreOp that wouldn't close the connection, neither
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charnik@926
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65 rollback the transaction upon an exception. This had as a side effect
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charnik@926
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66 the abnormal termination of StoreOp (through for example the use of
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charnik@926
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67 Ctrl-C signal) which was leaving the database locked.
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charnik@926
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68
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charnik@926
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69 * Fixed bug where spatial aggregates (e.g., union) didn't work as
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charnik@926
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70 expected when the query didn't contain a `GROUP BY' clause.
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charnik@926
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71 (bug #22: http://bug.strabon.di.uoa.gr/ticket/22)
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charnik@926
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72
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charnik@926
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73 * Updated GeoSPARQL namespaces and fixed function names to comply with
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charnik@926
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74 the GeoSPARQL specification.
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charnik@926
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75 (bug #25: http://bug.strabon.di.uoa.gr/ticket/25)
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Konstantina@1142
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76
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Konstantina@1142
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77 *Added preliminary tests on temporal functions in the respective
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Konstantina@1142
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78 "test" package of the runtime module.
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Konstantina@1142
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79
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Konstantina@1142
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80 *Added option to strabon and endpoint scripts to support storing
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Konstantina@1142
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81 files in NQUADS format.
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Konstantina@1142
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82
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Konstantina@1142
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83 *When a large file in NQUADS format is going to be stored, it is
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Konstantina@1142
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84 partitioned and stored in parts. This happens because the translation
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Konstantina@1142
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85 of quads to triples is a memory intensive job, so, translating and
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Konstantina@1142
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86 storing the file in batches increases performance.
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Konstantina@1142
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87
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charnik@926
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88
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charnik@853
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89 Wed Jan 09 18:06:41 2013 Pyravlos Team
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charnik@853
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90
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kkyzir@801
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91 * Version 3.2.7 released.
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kkyzir@801
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92
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ggarbis@854
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93 * Add an extension function
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ggarbis@854
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94 <http://strdf.di.uoa.gr/extensions/ontology#diffDateTime> for computing the
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ggarbis@854
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95 span (in milliseconds) between two timestamps.
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ggarbis@854
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96
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ggarbis@854
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97 * Added an <endpoint-exec> module. This module builds an executable jar file
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ggarbis@854
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98 with an embedded Apache Tomcat 7. To create and run the executable jar just
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ggarbis@854
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99 type:
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ggarbis@854
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100 $ mvn clean package
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ggarbis@854
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101 $ java -jar endpoint-exec/target/strabon-endpoint-executable-*.jar
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charnik@853
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102
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charnik@810
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103 * Modified strabon script and postgis/monetdb.StoreOP class to get an
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charnik@810
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104 option for storing a RDF file in a named graph. Moreover, the RDF
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charnik@810
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105 format of the input RDF file now is given as an option (still, if it
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charnik@810
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106 is missing, it is assumed that the input is in N-TRIPLES format). The
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charnik@810
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107 option for the format is -f and the option for the named graph is -g
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charnik@810
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108 (takes a URI as an argument).
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charnik@810
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109
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kkyzir@801
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110 * Modified the names of the stSPARQL extension functions that
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kkyzir@801
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111 utilize the minimum bounding boxes of the involved geometries.
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Konstantina@1142
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112
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Konstantina@1142
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113 *Fixed bug in the evaluation of temporal constructs.
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Konstantina@1142
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114
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Konstantina@1142
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115 *Fixed a major bug that occured when a temporal variable that also took part
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Konstantina@1142
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116 in a temporal join was projected.
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Konstantina@1142
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117
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Konstantina@1142
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118 *Renamed temporal extension functions to comply with the respective
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Konstantina@1142
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119 functions of Allen's temporal relations.
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Konstantina@1142
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120
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Konstantina@1142
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121 *Modified the implementation of the temporal relation functions
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Konstantina@1142
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122 "meets", "starts", "finishes", to comply with the semantics of the
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Konstantina@1142
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123 respective functions of Allen. These functions are not supported by
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Konstantina@1142
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124 PostgreSQL Temporal, so, in order to be evaluated in the database
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Konstantina@1142
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125 level, we implemented them as PostgreSQL extension functions.
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Konstantina@1142
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126 ATTENTION: In order to use these functions, the respective sql script
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Konstantina@1142
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127 that includes them should be loaded to the the temporally (and spa-
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Konstantina@1142
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128 tially) enabled database.
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Konstantina@1142
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129
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kkyzir@801
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130
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charnik@811
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131 Tue Dec 11 19:33:45 2012 Pyravlos Team
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charnik@811
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132
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kkyzir@800
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133 * Version 3.2.6 released.
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kkyzir@800
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134
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kkyzir@800
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135 * Modified the names of the stSPARQL extension functions to comply
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kkyzir@801
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136 with the OGC Simple Features Access standard.
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kkyzir@800
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137
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charnik@811
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138 Tue Dec 11 00:11:43 2012 Pyravlos Team
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charnik@811
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139
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charnik@645
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140 * Version 3.2.5 released.
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charnik@645
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141
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Konstantina@1142
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142 * Added support for storing and querying temporal information.
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Konstantina@1142
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143 This functionality may be found in the `temporals' branch.
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Konstantina@848
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144
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Konstantina@1142
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145 *The datatypes <http://strdf.di.uoa.gr/ontology#period> and
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charnik@849
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146 <http://www.w3.org/2001/XMLSchema#dateTime> are used to
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Konstantina@1142
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147 represent periods and instants respectively.
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Konstantina@848
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148
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Konstantina@1142
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149 *The valid time time of triples is represented using quadtruples,
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charnik@849
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150 with the valid time annotation(instant or period) being the
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Konstantina@1142
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151 fourth element of the quad. Into this direction:
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Konstantina@1142
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152 *Strabon has been extended to support the NQUADS format. The
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Konstantina@1142
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153 respective Sesame packages (of version 2.6.9) that support
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Konstantina@1142
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154 this format are used.
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Konstantina@1142
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155
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Konstantina@1142
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156 *NQuadTranslator class has been created. This class uses the
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Konstantina@1142
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157 NQUADS parser which is available here: https://github.com/joshsh/sesametools/tree/develop/nquads.
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Konstantina@1142
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158 The initial version of this parser did not include support
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Konstantina@1142
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159 for literals as the fourth element of the quad. We exteded
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Konstantina@1142
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160 it to support the valid time representations described above.
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Konstantina@1142
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161
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Konstantina@1142
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162 *The NQUADSTranslator translates quads into triples using the
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Konstantina@1142
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163 named graph approach, similar to the one proposed by Tappolet
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Konstantina@1142
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164 et al. and described in http://dl.acm.org/citation.cfm?id=1561565.
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Konstantina@1142
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165
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Konstantina@1142
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166 *The rdbms level of Strabon has been extended to (i) support
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Konstantina@1142
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167 tha period datatype (ii) store the period values in the table
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Konstantina@1142
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168 period_values(id, period). The period column is of the period
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Konstantina@1142
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169 datatype, offered by the PostgreSQL Temporal extension (http://sourceforge.net/projects/pgsql-temporal/).
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Konstantina@1142
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170 Also, a GiST index is created on this column.
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Konstantina@1142
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171
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Konstantina@1142
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172 *A rewriting mechanism that converts quad graph patterns into
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Konstantina@1142
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173 triple partners using the named graphs approach has been
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Konstantina@1142
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174 implemented as a method of the runtime.generaldb.Strabon
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Konstantina@1142
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175 class.
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Konstantina@1142
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176
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Konstantina@1142
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177 *A big part of the temporal functions of stSPARQL has been
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Konstantina@1142
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178 imlemented. These functions include:
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Konstantina@1142
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179 *The temporal relation functions during, periodOverlaps,
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Konstantina@1142
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180 equalsPeriod, nequalsPeriod, adjacent, before, after,
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Konstantina@1142
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181 overleft, overright, meets, starts, finishes.
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Konstantina@1142
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182
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Konstantina@1142
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183 *The period constructors period_intersect, period_union,
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Konstantina@1142
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184 preceding_period, and succeeding_period. The last two
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Konstantina@1142
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185 constructors are implemented using the jtemporal library.
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Konstantina@1142
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186 The other functions are implemented in the database,
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Konstantina@1142
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187 being mapped into the respective functions of PostgreSQL
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Konstantina@1142
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188 Temporal. A complete reference of PostgreSQL Temporal
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Konstantina@1142
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189 can be found here: http://temporal.projects.pgfoundry.org/reference.html.
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Konstantina@1142
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190
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Konstantina@1142
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191 *The temporal constants "NOW" and "UC" (Until Changed)
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Konstantina@1142
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192 are supported.
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Konstantina@1142
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193
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Konstantina@1142
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194 *The vocabulary of the valid time dimension of stSPARQL can
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Konstantina@1142
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195 be found at the TemporalConstants class of the evaluation
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Konstantina@1142
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196 module.
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Konstantina@1142
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197
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charnik@759
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198 * Changed behaviour of Strabon and Strabon Endpoint for connecting to
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charnik@759
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199 a spatially-enabled database. Only one instance of Strabon is allowed
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charnik@759
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200 at a time.
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charnik@759
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201
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charnik@688
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202 * Implemented a Java client for Strabon Endpoint. The client should be
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charnik@688
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203 used only with endpoint versions >=3.2.5. The implementation may be
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charnik@688
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204 found int the `endpoint-client' submodule of maven. Currently, only
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charnik@688
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205 querying of Strabon Endpoints is supported.
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charnik@688
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206
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charnik@662
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207 * Added support for requesting the capabilities of Strabon Endpoint
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charnik@662
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208 (fixes Bug #20 <http://bug.strabon.di.uoa.gr/ticket/20>). See
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charnik@662
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209 changesets f840796400bf and ?<TBC>? for specific details and how you
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charnik@662
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210 can determine the capabilities of older endpoints (versions <= 3.2.4).
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charnik@662
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211
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charnik@658
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212 * Updated KML writer to include the projected variables of an stSPARQL
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charnik@658
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213 query in "ExtendedData" and "Data" tags. This is the proper way to
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charnik@658
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214 do it if we need to convert a KML to a ESRI shapefile and also include
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charnik@658
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215 such information as attributes for a feature. See related pages from
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charnik@658
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216 KML specification:
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charnik@658
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217 <https://developers.google.com/kml/documentation/kmlreference#extendeddata>
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charnik@658
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218 <https://developers.google.com/kml/documentation/extendeddata>
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charnik@658
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219
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charnik@645
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220 * Added user authentication for storing RDF data through Strabon
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charnik@662
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221 Endpoint. The credentials are specified in
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charnik@662
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222 WEB-INF/credentials.properties file.
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charnik@645
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223
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charnik@645
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224 * Strabon Endpoints now limits the number of the results to a maximum
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charnik@645
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225 one. The maximum number is specified in the beans.xml file. This
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charnik@645
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226 corresponds to parameter "maxLimit". The endpoint script has also been
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charnik@645
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227 updated correspondingly; the limit can be given using the option "-l".
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charnik@645
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228 One can disable limiting of query results, by setting the "maxLimit"
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charnik@645
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229 parameter to 0. Addresses Bug #6
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charnik@645
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230 (<http://bug.strabon.di.uoa.gr/ticket/6>).
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charnik@645
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231
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charnik@645
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232 * Added "Known Issues" section to README.
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charnik@645
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233
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charnik@645
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234 * Added -m (more memory) and -M (much more memory) options in strabon
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charnik@645
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235 script for out-of-memory exceptions.
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charnik@645
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236
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charnik@849
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237 * Fixed Bug #10 (<http://bug.strabon.di.uoa.gr/ticket/10>). Now
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charnik@849
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238 KMLWriter handles more geometric types (other than polygons). See
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charnik@849
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239 changeset 9a3bfee64a39.
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charnik@645
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240
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charnik@645
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241 * Menu and navigation in Strabon Endpoint has changed to use jquery.
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charnik@645
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242 The menu is now populated using the queries placed inside the beans.xml.
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charnik@645
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243
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charnik@645
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244 * Added BrowseBean and browse.jsp for browsing the RDF data using the
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charnik@645
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245 Strabon Endpoint.
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