On Fri, Aug 10, 2018 at 6:37 PM Jody Garnett <jody.garn...@gmail.com> wrote:
> Good find Andrea:
>
> Can you report a GeoServer bug for the featuretype.xml issue and we can
> sort out an approach. As with the GEOT-6087
> <https://osgeo-org.atlassian.net/browse/GEOT-6087> I would prefer to
> store the geometry type, rather than the class name if we are making a
> change.
>
Those are bindings, class objects, when loaded into memory, I'm guess that
XStream can be configured with a custom converter that supports the old
class names. Unsure about
making them "geometry types" here however, see how the entire config file
looks like:
<featureType>
<id>FeatureTypeInfoImpl-f95e248:1639c9ede3c:-7f46</id>
<name>tasmania_cities</name>
<nativeName>tasmania_cities</nativeName>
<namespace>
<id>NamespaceInfoImpl-16665e65:14fac043b7f:-8000</id>
</namespace>
<title>tasmania_cities</title>
<keywords>
<string>tasmania_cities</string>
<string>features</string>
</keywords>
<nativeCRS>GEOGCS["WGS 84",
DATUM["World Geodetic System 1984",
SPHEROID["WGS 84", 6378137.0, 298.257223563,
AUTHORITY["EPSG","7030"]],
AUTHORITY["EPSG","6326"]],
PRIMEM["Greenwich", 0.0,
AUTHORITY["EPSG","8901"]],
UNIT["degree", 0.017453292519943295],
AXIS["Geodetic longitude", EAST],
AXIS["Geodetic latitude", NORTH],
AUTHORITY["EPSG","4326"]]</nativeCRS>
<srs>EPSG:4326</srs>
<nativeBoundingBox>
<minx>147.2909004483</minx>
<maxx>147.2911004483</maxx>
<miny>-42.85110181689001</miny>
<maxy>-42.85090181689</maxy>
<crs>EPSG:4326</crs>
</nativeBoundingBox>
<latLonBoundingBox>
<minx>147.2909004483</minx>
<maxx>147.2911004483</maxx>
<miny>-42.85110181689001</miny>
<maxy>-42.85090181689</maxy>
<crs>EPSG:4326</crs>
</latLonBoundingBox>
<projectionPolicy>NONE</projectionPolicy>
<enabled>true</enabled>
<metadata>
<entry key="recalculate-bounds">true</entry>
</metadata>
<store class="dataStore">
<id>DataStoreInfoImpl-f95e248:1639c9ede3c:-7f47</id>
</store>
<maxFeatures>0</maxFeatures>
<numDecimals>0</numDecimals>
<attributes>
<attribute>
<name>the_geom</name>
<minOccurs>0</minOccurs>
<maxOccurs>0</maxOccurs>
<nillable>false</nillable>
<binding>*com.vividsolutions.jts.geom.MultiPoint*</binding>
</attribute>
<attribute>
<name>CITY_NAME</name>
<minOccurs>0</minOccurs>
<maxOccurs>0</maxOccurs>
<nillable>false</nillable>
<binding>*java.lang.String*</binding>
</attribute>
<attribute>
<name>ADMIN_NAME</name>
<minOccurs>0</minOccurs>
<maxOccurs>0</maxOccurs>
<nillable>false</nillable>
<binding>java.lang.String</binding>
</attribute>
<attribute>
<name>CNTRY_NAME</name>
<minOccurs>0</minOccurs>
<maxOccurs>0</maxOccurs>
<nillable>false</nillable>
<binding>java.lang.String</binding>
</attribute>
<attribute>
<name>STATUS</name>
<minOccurs>0</minOccurs>
<maxOccurs>0</maxOccurs>
<nillable>false</nillable>
<binding>java.lang.String</binding>
</attribute>
<attribute>
<name>POP_CLASS</name>
<minOccurs>0</minOccurs>
<maxOccurs>0</maxOccurs>
<nillable>false</nillable>
<binding>java.lang.String</binding>
</attribute>
</attributes>
<overridingServiceSRS>false</overridingServiceSRS>
<skipNumberMatched>false</skipNumberMatched>
<circularArcPresent>false</circularArcPresent>
</featureType>
Aside: This would fall under "data directory" migration, the logic of which
> I am not completely familiar with since it has been some time since we made
> any structural changes.
>
There is a old reader and a new reader, there is no real migration logic.
For this I'd roll a custom converter allowing backwards compatibility
instead.
> An easy approach would be to regenerate this cached feature type
> information, but we should also be able to update in place.
>
Nope, users get mad at us when we modify the data dir contents on startup
(we have had a number of tickets already),
data dirs should be usable on read-only sources too (with the attention of
moving out logs, temps, tiles)
Cheers
Andrea
==
GeoServer Professional Services from the experts! Visit http://goo.gl/it488V
for more information. == Ing. Andrea Aime @geowolf Technical Lead
GeoSolutions S.A.S. Via di Montramito 3/A 55054 Massarosa (LU) phone: +39
0584 962313 fax: +39 0584 1660272 mob: +39 339 8844549
http://www.geo-solutions.it http://twitter.com/geosolutions_it
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