com.luciad.fusion.tilestore.metadata

LuciadLightspeedInterface ILfnResourceMetadataResolver

All Known Implementing Classes:

ALfnTileStore, ALfnTileStoreWrapper, TLfnCachingTileStore, TLfnCollectionResourceMetadataResolver, TLfnDigestTileStore, TLfnFileSystemTileStore

public interface ILfnResourceMetadataResolver

A resolver which can resolve a resource ID to its resource metadata. A resolver does not necessarily have to be able to resolve all possible resource IDs. Depending on the use case, implementations may resolve a selected subset of resource IDs. A resolver should return null for resource IDs it cannot resolve.

A typical use case is when you're creating asset metadata and coverage metadata using a ALfnResourceMetadata.Builder. In this case, you could implement a resolver based on a map with asset ID as key and asset metadata as value. Such a resolver can then be given to the coverage metadata builder to compute auto-defaults.

Another use case is when you're loading all resource metadata from an existing Tile Store. In this case, you could implement a resolver based on ALfnTileStore.getResourceMetadata(String). Such a resolver can then be given to a TLfnThemeMetadataTraverser to traverse a theme resource's tree.

Since:

10.0

See Also:

TLfnThemeMetadataTraverser, TLfnRasterCoverageMetadata.newBuilder(ILfnResourceMetadataResolver)

Method Summary

Modifier and Type	Method and Description
<R extends ALfnResourceMetadata> R	getResourceMetadata(String aId) Gets the metadata for a resource with a given ID, or null if none.

Method Detail

getResourceMetadata

<R extends ALfnResourceMetadata> R getResourceMetadata(String aId)
                                                throws IOException,
                                                       TLfnServiceException

Gets the metadata for a resource with a given ID, or null if none.

Parameters:

aId - the resource ID

Returns:

the resource metadata, or null if none

Throws:

IOException

TLfnServiceException