>
> 2. FileDataSourceQueryChooser that register with the
> DataSourceQueryChooserManager will automatically get added. The only one
> caveat is that I have no way to automatically get the options panel
> fields if one is defined for that type. Other than GML can you think of
> any plugins that require options?
not sure.. but database connections need options - i think (see postgis
plugin from Uwe on sourceforge, i.e. the one that can also write back)
I think one can change this, but i don't know if other people developes
other plugins.. i.e. for raster files the Pirol-Image plugin should be
checked.
just some thoughts.. i haven't checked any of those - so i may be wrong
stefan
>
> List loadChoosers =
> DataSourceQueryChooserManager.get(workbenchContext.getBlackboard()).getLoadDataSourceQueryChoosers();
> for (Object chooser : loadChoosers) {
> if (chooser instanceof FileDataSourceQueryChooser) {
> FileDataSourceQueryChooser fileChooser =
> (FileDataSourceQueryChooser)chooser;
> Class dataSourceClass = fileChooser.getDataSourceClass();
> String description = fileChooser.getDescription();
> List<String> extensions =
> Arrays.asList(fileChooser.getExtensions());
> DataSourceFileLoader fileLoader = new
> DataSourceFileLoader(workbenchContext, null, description, extensions);
> registry.createEntry(FileLoader.KEY, fileLoader);
> }
> }
>
> Paul
>
> Stefan Steiniger wrote:
>> Yep.. sounds and looks interesting.
>>
>> but two questions/comments:
>>
>> - what about skiping any further dialog - e.g. if jml or shape files
>> should be loaded without any reference system info necessary. Is that
>> possible.
>>
>> - how can we integrate the external plugins that deliver functionality
>> such as dxf, mif, or PostGIS support. The problem here is that
>> everything needs still to be the same as previously.
>>
>> stefan
>>
>> Paul Austin schrieb:
>>
>>> All,
>>>
>>> I have now implemented what I think should be the 'Open File...' menu
>>> item in the File menu which will allow uses to open files and add them
>>> as layers to the current Project.
>>>
>>> This first screen shot shows the first page of the wizard where you can
>>> select the File type (or leave it as All Files) and then select one or
>>> more files to load.
>>>
>>>
>>>
>>> If All files was selected as the file filter and one or more of the file
>>> extensions could be loaded by more than one file loader (e.g. *.xml can
>>> be loaded by the GML Loader and FME GML Loader) then the following
>>> wziard panel will be displayed when you select the Next button on the
>>> previous page. This will allow you to select which loader to use for
>>> each extension.
>>>
>>>
>>>
>>> If you uncheck the Use the same Settings for say *.xml you can select
>>> the specific loader to use for each file as shown below.
>>>
>>>
>>>
>>> Some file loaders have options (e.g. GML loader requires a template
>>> file) if the loader has options these will be displayed on the next
>>> wizard page. If no loaders have options then this page will not be
>>> displayed. This is where we could add in options for the SRS ID to use
>>> for the loaded data set. Options that are required will not allow the
>>> finish button to be selected until a value is specified.
>>>
>>>
>>>
>>> Again if you uncheck the Use same setting for all XXX then you can
>>> define the options on a per file basis as shown below.
>>>
>>>
>>>
>>> This new infrastructure also handles ZIP, GZ, tar and tar.gz, files by
>>> looking at the contents of the zip file and finding the appropriate file
>>> loader for that type of file. You can mix and match different types of
>>> file in the zip file (e.g. TIF, SHP and GML) and each file will be loaded.
>>>
>>> The FileLoader interface (attached) is implemented by loaders that can
>>> load a file from a URI. There are implementations to wrap the file
>>> DataSource and file ReferencedImageFactory implementations so they can
>>> be loaded using the new framework.
>>>
>>> The following code fragments show how these existing classes are wrapped
>>>
>>> DataSourceFileLoader gmlLoader = addStandardReaderWriterFileDataSource(
>>> "GML 2.0", StandardReaderWriterFileDataSource.GML.class);
>>>
>>> gmlLoader.addOptionField(
>>> StandardReaderWriterFileDataSource.GML.INPUT_TEMPLATE_FILE_KEY,
>>> "FileString", true);
>>>
>>> addFactory(new GraphicImageFactory(), new String[] {"wld", "bpw",
>>> "jpw", "gfw"});
>>> :
>>>
>>> private DataSourceFileLoader addStandardReaderWriterFileDataSource(
>>> String description, Class readerClass) {
>>> List extensions = getExtensions(readerClass);
>>> if (extensions != null) {
>>> DataSourceFileLoader fileLoader = new DataSourceFileLoader(
>>> workbenchContext, readerClass, description, extensions);
>>> registry.createEntry(FileLoader.KEY, fileLoader);
>>> return fileLoader;
>>> }
>>> return null;
>>> }
>>>
>>> private List getExtensions(Class readerClass) {
>>> try {
>>> String[] extensions =
>>> ((StandardReaderWriterFileDataSource)readerClass.newInstance()).getExtensions();
>>> return Arrays.asList(extensions);
>>> } catch (Exception e) {
>>>
>>> workbenchContext.getWorkbench().getFrame().log(StringUtil.stackTrace(e));
>>> return null;
>>> }
>>> }
>>>
>>> private void addFactory(ReferencedImageFactory factory, String[]
>>> supportFileExtensions) {
>>> if (factory.isAvailable()) {
>>> ReferencedImageFactoryFileLoader loader = new
>>> ReferencedImageFactoryFileLoader(
>>> workbenchContext, factory, supportFileExtensions);
>>> registry.createEntry(FileLoader.KEY, loader);
>>> }
>>> }
>>>
>>>
>>> I'm going to bundle up a plugin so people can try this out and if they
>>> like it I'll start work on getting it ready to commit.
>>>
>>> Paul
>>>
>>>
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