ClasspathCrawler
, DirectoryCrawler
, NetworkCrawler
, ZipJarCrawler
public interface DataProvider
file loaders
.
This interface defines a generic way to explore some collection holding data files and load some of them. The collection may be a list of resources in the classpath, a directories tree in filesystem, a zip or jar archive, a database, a connexion to a remote server ...
The proper way to use this interface is to configure one or more
implementations and register them in the data
providers manager singleton
, or to let this manager use its default
configuration. Once registered, they will be used automatically whenever
some data needs to be loaded. This allow high level applications developers
to customize Orekit data loading mechanism and get a tighter intergation of
the library within their application.
DataLoader
,
DataProvidersManager
Modifier and Type | Field | Description |
---|---|---|
static Pattern |
GZIP_FILE_PATTERN |
Deprecated.
as of 9.2, replaced with
GzipFilter |
static Pattern |
ZIP_ARCHIVE_PATTERN |
Pattern for name of zip/jar archives.
|
Modifier and Type | Method | Description |
---|---|---|
boolean |
feed(Pattern supported,
DataLoader visitor) |
Feed a data file loader by browsing the data collection.
|
@Deprecated static final Pattern GZIP_FILE_PATTERN
GzipFilter
static final Pattern ZIP_ARCHIVE_PATTERN
boolean feed(Pattern supported, DataLoader visitor)
The method crawls all files referenced in the instance (for example all files in a directories tree) and for each file supported by the file loader it asks the file loader to load it.
If the method completes without exception, then the data loader
is considered to have been fed successfully and the top level
data providers manager
will return
immediately without attempting to use the next configured providers.
If the method completes abruptly with an exception, then the top level
data providers manager
will try to use
the next configured providers, in case another one can feed the
data loader
.
supported
- pattern for file names supported by the visitorvisitor
- data file visitor to useCopyright © 2002-2019 CS Systèmes d'information. All rights reserved.