Yeah I knew that about Andriod; not using Java at all (indeed that is what
the lawsuit is about).
We do have a way for you to avoid factory spi; you can add a factory iteator
to the GeoTools base class; the various factory registery are supposed to
check this ... as well as factory spi.
For a while I have wanted to introduce something similar to the netbeans
NLookup classes; basically allowing people to switch between Factory SPI,
OSGi, Spring or whatever in order to "wire" up GeoTools. We do something
similar in order to work with multiple logging systems (in order to better
integrate with whatever environment people are using GeoTools in).
You best bet may be to fork the code; and hack away at the various factory
finders. Start small with making sure the CRS utility class can find an EPSG
authroity factory; and then move your way up through CommonFactoryFinder and
DataStoreFinder.
Jody
On Mon, Apr 18, 2011 at 7:48 PM, Roy Braam <[email protected]> wrote:
> Seems to me the .jar files are not loaded/found, maybe compile geotools
> with the dx tool? I don't think the .jar files are added in the build?? Some
> wild guessess.....
>
> Roy
>
> ------------------------------
> *From:* Rémi Belzanti [mailto:[email protected]]
> *To:* Jody Garnett [mailto:[email protected]]
> *Cc:* [email protected]
> *Sent:* Mon, 18 Apr 2011 11:19:02 +0200
> *Subject:* Re: [Geotools-gt2-users] GeoTools 2 and Android applications
>
>
> Hi,
>
> I wasn't aware that GeoTools uses the Java "SPI" nor what SPI means. I
> found information about SPI and i'm not really sure that the Android
> platform can handle that (for example, the package javax.security is handled
> by Android but javax.security.auth.spi is not). I'm looking for more
> information about that.
>
> By the way, i've found information that may be useful :
> Android uses the Dalvik virtual machine. The architecture of this VM is a
> registry, not a stack one like the Java VM.
> Applications developed for Android must be compiled in Dalvik executables
> (.dex) with the dx tool. It compiles .java and .class and then convert
> .class in .dex. So the .dex file is the equivalent to .jar but for Android.
> Thus, the Dalvik Bytecode is different from the Java Bytecode.
>
> So i guess when i import .jar files into my Android project, they are
> turned into .dex files (or i'm wrong somehow ?).
> Moreover, the Dalvik VM doesn't use JIT compilation.
>
> So this may explain why i have deferences between a compilation on a Java
> classic project that uses GeoTools and an Android one.
>
> Now about what "doesn't work" means to me :
>
> I have errors while using the application i created with GeoTools
> attributes, but not while typing the code.
> Here is an example of a code that seems correct, but throws me an error
> while using the application :
>
> Map<String, Serializable> pParams = new HashMap<String, Serializable>();
>
> DataStore pDS = null;
> try {
> pParams.put("ServeurPrincipal", new URI(endPoint));
> pDS = DataStoreFinder.getDataStore(pParams); // <-- Error here
> } catch (URISyntaxException e) {
> e.printStackTrace();
>
> } catch (IOException e) {
> e.printStackTrace();
> }
>
>
> The error is :
>
> ERROR/AndroidRuntime(262): java.lang.
> NoClassDefFoundError: org.geotools.data.wfs.WFSDataStoreFactory
>
> Some explanation about the code:
> I want to get data from a WFS server that can be reach through the
> "endPoint" URL (String).
> Before i can iterate the data, i have an exception on the getDataStore
> function.
> The endPoint URL is something like "
> http://privateServer/arcgis/services/monPortail/prototype_mobile/MapServer/WFSServer?TYPENAME=monPortail&request=getFeature&service=WFS&version=1.1.0<http://privateserver/arcgis/services/monPortail/prototype_mobile/MapServer/WFSServer?TYPENAME=monPortail&request=getFeature&service=WFS&version=1.1.0>
> "
>
> At this point, i included in the project those .jar files :
> - gt-api
> - gt-data
> - gt-epsg-hsql
> - gt-main
> - gt-opengis
> - gt-wfs
> - gt-xml
>
> I am not able to add every .jar files listed in the
> geotools-2.7.0.1-bin.zip file because when i'm doing that, i have a Heap
> space error although i run Eclipse this way : C:\eclipse\eclipse.exe
> -vmargs -Xms512m -Xmx1024m -XX:PermSize=128m -XX:MaxPermSize=256m _nl fr_FR
>
> Another example with another error :
>
> Map connectionParameters = new HashMap();
>
> connectionParameters.put("WFSDataStoreFactory:GET_CAPABILITIES_URL",
> endPoint);
> DataStore data = null;
> // Step 2 - connection
> try {
> data = DataStoreFinder.getDataStore( connectionParameters ); // <-- Error
> here
>
> } catch (IOException e) {
> e.printStackTrace();
> }
>
>
> Returned error : ERROR/AndroidRuntime(313): Caused by:
> java.lang.NoClassDefFoundError: org.geotools.util.logging.Logging
>
> Another one :
>
> Map params = new HashMap();
> params.put(WFSDataStoreFactory.URL.key, endPoint); // <-- Error here
>
>
> Here, endPoint is an URL type variable.
> The error reported is : ERROR/AndroidRuntime(364):
> java.lang.NoClassDefFoundError: org.geotools.data.wfs.WFSDataStoreFactory
>
> Finally, the last test :
>
> WFSDataStoreFactory f = new WFSDataStoreFactory(); // <-- Error here
>
>
> Returns : ERROR/AndroidRuntime(417): java.lang.NoClassDefFoundError:
> org.geotools.data.wfs.WFSDataStoreFactory
>
> So far, i use just a selection of .jar files. When i try to import more
> .jar files, i have a heap space error (eclipse.exe uses about 1150Mo of
> RAM), with many messages like this in the console :
>
> 2011-04-18 10:52:43 - CRLRmap] Dx warning: Ignoring InnerClasses attribute
> for an anonymous inner class
> (com.ibm.icu.text.BreakIteratorFactory$1RBBreakIteratorFactory) that
> doesn't come with an
> associated EnclosingMethod attribute. This class was probably produced by a
> compiler that did not target the modern .class file format. The recommended
> solution is to recompile the class from source, using an up-to-date
> compiler
> and without specifying any "-target" type options. The consequence of
> ignoring
> this warning is that reflective operations on this class will incorrectly
> indicate that it is *not* an inner class.
>
> For now i don't know what to do with this indication.
>
> I hope i gave you enough to have a clue about what is possible to do to use
> GeoTools correctly with Android.
>
> If you need any additional information or want me to test some procedures,
> please let me know so i can perform tests or improvements about my use of
> GeoTools.
>
> Regards,
>
> Rémi Belzanti
> [email protected]
>
> 2011/4/16 Jody Garnett <[email protected]>
>
>> I am not aware of the limits of the andriod platform; you are aware that
>> GeoTools uses the Java "SPI" system to write up each jar (so they can find
>> the factories provided by the plugins). Does this mechanism work on Andriod?
>>
>> You will need to provide some more details on what "doesn't work" means?
>>
>> --
>> Jody Garnett
>>
>> On Saturday, 16 April 2011 at 4:53 PM, Rémi Belzanti wrote:
>>
>> Hi,
>>
>> I'm looking for information about how to use GeoTools with Android system.
>> I'm not sure this is here i can ask questions about that, so don't hesitate
>> to redirect me to an appropriate place.
>>
>> I am using Eclipse on Windows XP. I downloaded the GeoTools 2 zip file and
>> started to add some .jar files to my project.
>> The particularity of my project is that this is an Android one.
>>
>> I am developing an Android application that would allow me to show on a
>> map (google map) some features (points but not only) so i tried to use
>> GeoTools to do that (concretely, my goal is to display features given to my
>> by a WFS server).
>>
>> Today, with the version 2.7.0.1, it appears that GeoTools doesn't work
>> with an Android project. To have the capacity of creating an Android project
>> in Eclipse, you have to download and install the Android SDK package.
>> First i thought i was wrong with the add of .jar files or something, but
>> when i create a new "classic" java project, it appears that i can use
>> GeoTools efficiently.
>>
>> So my question is, is there any Android version of GeoTools or is there
>> any particular configuration that i need to do to use GeoTools within
>> Android applications ?
>>
>> I can give you more information about the error messages i have in return
>> of a code that works on "classic" java project, and about all i've tried to
>> do with the configuration or add of .jar files.
>>
>> Thanks in advance.
>>
>> Best regards,
>>
>> Remi
>> zepi30gmail.com
>>
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>
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