l also note in our docs for gt-opengis we are very clear about the library
use.
* http://docs.geotools.org/latest/userguide/library/opengis/faq.html
--
Jody Garnett
On 19 February 2015 at 08:48, Stephane Fellah <stepha...@imagemattersllc.com
> wrote:
> Hi,
>
> I would like to express my frustration to the Geotools community about the
> unethical use of GeoAPI in the library. I have been a user and big fan of
> Geotools for many years, but I am also using other libraries such Apache
> SIS and Geotookit to explore new way to use OpenGIS services and
> standards. For example Geotookit and Apache SIS have an excellent support
> for parsing ISO 19139 and Geotools has a mature support for handling the
> different versions of WMS and WFS. I ran into serious issue recently about
> jar dependencies when I try to use all these libraries together. The main
> issue is the usage of GeoAPI.
>
> Geotools has a library called gt-opengis that uses the same domain than
> GeoAPI (org.opengis). Here is an example of issue I ran into:
>
> I am using gtk-metadata-4.0-M1 which uses geoapi-pending-3.1-M04 (for
> parsing ISO 19139) and I have another plugin for parsing WMS that uses
> Geotools gt-wms-12.1 and depends on gt-opengis-12.1.
> When I run my parser for ISO 19139, I run into library conflict on the
> signature for CodeList.
>
> Caused by: java.lang.NoSuchMethodError:
> org.opengis.util.CodeList.valueOf(Ljava/lang/Class;Lorg/opengis/util/CodeList$Filter;)Lorg/opengis/util/CodeList;
> at org.apache.sis.util.iso.Types.forCodeName(Types.java:526)
> at
> org.apache.sis.internal.jaxb.gmd.CodeListAdapter.unmarshal(CodeListAdapter.java:120)
> at
> org.apache.sis.internal.jaxb.gmd.CodeListAdapter.unmarshal(CodeListAdapter.java:52)
> at
> com.sun.xml.bind.v2.runtime.reflect.AdaptedAccessor.set(AdaptedAccessor.java:85)
> at com.sun.xml.bind.v2.runtime.reflect.Accessor.receive(Accessor.java:171)
> at
> com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext.endElement(UnmarshallingContext.java:523)
> at
> com.sun.xml.bind.v2.runtime.unmarshaller.SAXConnector.endElement(SAXConnector.java:160)
> at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
> at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
> Source)
>
> The issue comes from the fact the gt-opengis-12.1 takes precedence in the
> classloader (it uses the same class name). There is no simple solution to
> solve this problem, either writing your own classloader or using a
> framework like OGSI. Both requires extensive work and expertise.
>
> Geotools has copied some early version of GeoAPI using the namespace
> org.opengis that GeoAPI owns and created a fork of the API that is
> incompatible with the current GeoAPI version. I think the appropriation of
> the namespace org.opengis and making modification of the API that are not
> compliant with the standard is unethical (and probably in breach with the
> OGC licensing terms).
>
> I see two solutions to this problem:
>
> 1) Rename the package org.opengis to org.geotools.opengis and they do
> whatever you want with it
> 2) Align with the standard GeoAPI 3.0.0, which was voted and approved by
> OGC and then participate to the SWG at OGC to drive future developments of
> GeoAPI based on the requirements of Geotools community.
>
> I would favor the second solution, but I can understand that may require
> more work to refactor. So in the meantime, the quick solution would be
> apply solution 1 (changing package name), until a plan to align to GeoAPI
> is put in place for future version.
>
> Best regards
>
>
> --
> Stephane Fellah
> Chief Knowledge Scientist
> Image Matters LLC
> Office: +(703) 669 5510
> Cell: 703 431 9420
>
>
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