Tasks

This section is used to make sure your proposal is complete (did you remember documentation?) and has enough paid or volunteer time lined up to be a success

	no progress		done		impeded		lack mandate/funds/time		volunteer needed

1. Define interface based from the WCS specification
2. Produce initial prototype for world + image
3. Roll out the above prototype for a round of community feedback and review
4. Port the existing coverage formats one by one, either:
   • as a wrapper around existing GridCoverageReaders / GridCoverageWriter implementations
   • or direct implementation of CoverageStore / CoverageSource and CoverageStore

API

We need to create the front end to the coverage service; capturing the list of what is available and a little bit of description of the service (so user interfaces can describe what is going on):

interface GridAccessFactory {
    public boolean isAvailable();
        
    InternationalString getDisplayName();
    boolean canCreateGridAccess( Map<String,Serializable> connectionParams );
    GridAccess createGridAccess( Map<String,Serializable> connectionParams ) throws IOException;
        
    boolean canCreateGridAccess( Map<String,Serializable> creationParams );
    GridAccess createNewGridAccess( Map<String,Serializable> creationParams );
}

interface GridAccess {
    List<Name> getNames();
    ServiceInfo getInfo();
    // ResourceInfo getInfo( Name name );
    GridSource getGridSource( Name name );
    void dispose();
}

For each resource type being managed we have the following data access api:

interface GridSource {
    ResourceInfo getInfo();
    List<GridCoverage> getCoverages( Query query, Hints hints );
    ...
    dispose();
}
interface GridStore extends GridSource {
    List<GridCoverge> modifyCoverages( Query, Hints hints );
}

Query this time is based on the WCS specification:

interface Query {
   ...
   simone help!
   ...
}

Out of scope

The following extentions are possible:

• GridServiceInfo - we will wait for experience to dictate what extra information is useful
• GridResourceInfo - we will wait for experience to dictate what extra information is useful

Documentation Changes

list the pages effected by this proposal

• Data Module from the Module Matrix page
• Upgrade to 2.5
• http://svn.geotools.org/geotools/trunk/gt/demo/example/
• Home
• Home