Package thredds.catalog

Class InvCatalog

  • Direct Known Subclasses:
    InvCatalogImpl
    public abstract class InvCatalog
extends Object
    Public interface to a thredds catalog, a virtual directory of datasets. A catalog consists of nested collections of InvDatasets.

    • Constructor Detail

      • InvCatalog

        protected InvCatalog()
        Protected constructor.

    • Method Detail

      • getName

        public String getName()
        Get the name of the catalog
        Returns:
        name of catalog

      • getVersion

        public String getVersion()
        Get the version of the catalog
        Returns:
        catalog version

      • getDataset

        public InvDatasetImpl getDataset()
        Deprecated.
        use getDatasets()
        Get top-level dataset.
        Returns:
        top-level InvDataset. May not be null.

      • findDatasetByID

        public InvDataset findDatasetByID​(String id)
        Find a contained dataset by its ID.
        Parameters:
        id - : dataset ID, case sensitive
        Returns:
        InvDataset or null if not found.

      • getDatasets

        public List<InvDataset> getDatasets()
        Get top-level datasets.
        Returns:
        List of InvDataset. May be empty, may not be null.

      • getServices

        public List<InvService> getServices()
        Get top-level services.
        Returns:
        List of InvService. May be empty, may not be null.

      • getProperties

        public List<InvProperty> getProperties()
        Get catalog properties.
        Returns:
        List of InvProperty. May be empty, may not be null.

      • findProperty

        public String findProperty​(String name)
        Find named property.
        Parameters:
        name - match this name
        Returns:
        string value of property or null if not exist.

      • getExpires

        public ucar.nc2.units.DateType getExpires()
        Get date catalog expires, or null if none given.
        Returns:
        expiration date, or null

      • findService

        public InvService findService​(String name)
        Find the named service declared in the top level of this catalog.
        Parameters:
        name - match this name
        Returns:
        service that matches the given name, or null if none found.

      • resolveUri

        public URI resolveUri​(String uriString)
               throws URISyntaxException
        Resolve reletive URIs, using the catalog's base URI. If the uriString is not reletive, then no resolution is done. This also allows baseURI to be a file: scheme.
        Parameters:
        uriString - any url, reletive or absolute
        Returns:
        resolved url string, or null on error
        Throws:
        URISyntaxException - if uriString violates RFC 2396
        See Also:
        URI.resolve(java.net.URI)

      • getUriString

        public String getUriString()
        Get the base URI as a String
        Returns:
        baseURI as a String

      • check

        public abstract boolean check​(StringBuilder out,
                              boolean show)
        Check internal data structures.
        Parameters:
        out - : print errors here
        show - : print messages for each object (debug)
        Returns:
        true if no fatal consistency errors.

      • check

        public boolean check​(StringBuilder out)
        Check internal data structures.
        Parameters:
        out - : print errors here
        Returns:
        true if no fatal consistency errors.

      • subset

        public abstract void subset​(InvDataset dataset)
        Munge this catalog so the given dataset is the top catalog.
        Parameters:
        dataset - make this top; must be existing dataset in this catalog.

      • filter

        public abstract void filter​(DatasetFilter filter)
        Munge this catalog to remove any dataset that doesnt pass through the filter.
        Parameters:
        filter - remove datasets that dont pass this filter.