org.gcube.data.tml.proxies

Interface TReader

All Known Implementing Classes:

DefaultTReader

public interface TReader

An interface over remote T-Reader endpoints.

T-Reader endpoints give access to data sources under a tree-based model.

Author:

Fabio Simeoni

See Also:

TWriter, TBinder

Method Summary

Methods

Modifier and Type	Method and Description
org.gcube.data.streams.Stream<org.gcube.data.trees.data.Tree>	get(org.gcube.data.trees.patterns.Pattern pattern) Returns all the Trees in the bound source which match a given Pattern.
org.gcube.data.streams.Stream<org.gcube.data.trees.data.Tree>	get(org.gcube.data.streams.Stream<String> ids, org.gcube.data.trees.patterns.Pattern pattern) Returns Trees in the bound source from their identifiers, after pruning them with a Pattern.
org.gcube.data.trees.data.Tree	get(String id) Returns a Tree with a given identifier in the bound source.
org.gcube.data.trees.data.Tree	get(String id, org.gcube.data.trees.patterns.Pattern pattern) Returns a Tree in with a given identifier the bound source, after pruning it with a Pattern.
org.gcube.data.streams.Stream<org.gcube.data.trees.data.Tree>	get(URI idLocator, org.gcube.data.trees.patterns.Pattern pattern) Returns Trees in the bound source from their identifiers, after pruning them with a Pattern.
org.gcube.data.trees.data.Node	getNode(String... path) Returns a Node in the bound source from its path in a tree, i.e.
org.gcube.data.streams.Stream<org.gcube.data.trees.data.Node>	getNodes(org.gcube.data.streams.Stream<Path> paths) Returns Nodes from their paths in a tree, i.e.
org.gcube.data.streams.Stream<org.gcube.data.trees.data.Node>	getNodes(URI pathsLocator) Returns Nodes from their paths in a tree, i.e.

Method Detail

get

org.gcube.data.trees.data.Tree get(String id)
                                   throws UnknownTreeException

Returns a Tree with a given identifier in the bound source.

Parameters:

id - the tree identifier

Returns:

the tree

Throws:

UnknownTreeException - if the identifier does not identify a tree in the bound source

org.gcube.common.clients.exceptions.DiscoveryException - if the proxy is created in discovery mode but no service endpoints can be discovered

org.gcube.common.clients.exceptions.UnsupportedOperationException - if the bound source does not support the operation

org.gcube.common.clients.exceptions.UnsupportedRequestException - if the bound source does not support this particular request

org.gcube.common.clients.exceptions.ServiceException - if the call fails for any other error

get

org.gcube.data.trees.data.Tree get(String id,
                                 org.gcube.data.trees.patterns.Pattern pattern)
                                   throws UnknownTreeException,
                                          InvalidTreeException

Returns a Tree in with a given identifier the bound source, after pruning it with a Pattern.

Parameters:

id - the tree identifier

pattern - the pattern

Returns:

the pruned tree

Throws:

UnknownTreeException - if the identifier does not identify a tree in the bound source

InvalidTreeException - if the identified tree does not match the pattern

org.gcube.common.clients.exceptions.DiscoveryException - if the proxy is created in discovery mode but no service endpoints can be discovered

org.gcube.common.clients.exceptions.UnsupportedOperationException - if the bound source does not support the operation

org.gcube.common.clients.exceptions.UnsupportedRequestException - if the bound source does not support this particular request

org.gcube.common.clients.exceptions.ServiceException - if the call fails for any other error

get

org.gcube.data.streams.Stream<org.gcube.data.trees.data.Tree> get(org.gcube.data.streams.Stream<String> ids,
                                                                org.gcube.data.trees.patterns.Pattern pattern)

Returns Trees in the bound source from their identifiers, after pruning them with a Pattern.

Parameters:

loc - a locator to a Resultset of tree identifiers

pattern - the pattern

Returns:

a Stream of resolved Trees

Throws:

org.gcube.common.clients.exceptions.DiscoveryException - if the proxy is created in discovery mode but no service endpoints can be discovered

org.gcube.common.clients.exceptions.UnsupportedOperationException - if the bound source does not support the operation

org.gcube.common.clients.exceptions.UnsupportedRequestException - if the bound source does not support this particular request

org.gcube.common.clients.exceptions.ServiceException - if the call fails for any other error

get

org.gcube.data.streams.Stream<org.gcube.data.trees.data.Tree> get(URI idLocator,
                                                                org.gcube.data.trees.patterns.Pattern pattern)

Returns Trees in the bound source from their identifiers, after pruning them with a Pattern.

Parameters:

idLocator - a locator to a stream of tree identifiers

pattern - the pattern

Returns:

a Stream of resolved Trees

Throws:

org.gcube.common.clients.exceptions.DiscoveryException - if the proxy is created in discovery mode but no service endpoints can be discovered

org.gcube.common.clients.exceptions.UnsupportedOperationException - if the bound source does not support the operation

org.gcube.common.clients.exceptions.UnsupportedRequestException - if the bound source does not support this particular request

org.gcube.common.clients.exceptions.ServiceException - if the call fails for any other error

get

org.gcube.data.streams.Stream<org.gcube.data.trees.data.Tree> get(org.gcube.data.trees.patterns.Pattern pattern)

Returns all the Trees in the bound source which match a given Pattern.

Parameters:

pattern - the pattern

Returns:

a Stream of matching Trees

Throws:

org.gcube.common.clients.exceptions.DiscoveryException - if the proxy is created in discovery mode but no service endpoints can be discovered

org.gcube.common.clients.exceptions.UnsupportedOperationException - if the bound source does not support the operation

org.gcube.common.clients.exceptions.UnsupportedRequestException - if the bound source does not support this particular request

org.gcube.common.clients.exceptions.ServiceException - if the call fails for any other error

getNode

org.gcube.data.trees.data.Node getNode(String... path)
                                       throws UnknownPathException

Returns a Node in the bound source from its path in a tree, i.e. the list of of one or more identifiers of the nodes that connect it to the root of the tree.

Parameters:

path - the node identifiers

Returns:

the node

Throws:

UnknownPathException - if the identifiers do not identify a node in the bound source

org.gcube.common.clients.exceptions.DiscoveryException - if the proxy is created in discovery mode but no service endpoints can be discovered

org.gcube.common.clients.exceptions.UnsupportedOperationException - if the bound source does not support the operation

org.gcube.common.clients.exceptions.UnsupportedRequestException - if the bound source does not support this particular request

org.gcube.common.clients.exceptions.ServiceException - if the call fails for any other error

getNodes

org.gcube.data.streams.Stream<org.gcube.data.trees.data.Node> getNodes(org.gcube.data.streams.Stream<Path> paths)

Returns Nodes from their paths in a tree, i.e. lists of identifiers of the nodes that connect them to the root of a tree.

Parameters:

paths - a Stream of Paths

Returns:

a Stream of Nodes

Throws:

org.gcube.common.clients.exceptions.DiscoveryException - if the proxy is created in discovery mode but no service endpoints can be discovered

org.gcube.common.clients.exceptions.UnsupportedOperationException - if the bound source does not support the operation

org.gcube.common.clients.exceptions.UnsupportedRequestException - if the bound source does not support this particular request

org.gcube.common.clients.exceptions.ServiceException - if the call fails for any other error

getNodes

org.gcube.data.streams.Stream<org.gcube.data.trees.data.Node> getNodes(URI pathsLocator)

Returns Nodes from their paths in a tree, i.e. lists of identifiers of the nodes that connect them to the root of a tree.

Parameters:

pathsLocator - a locator to a stream of paths

Returns:

a Stream of Nodes

Throws:

org.gcube.common.clients.exceptions.DiscoveryException - if the proxy is created in discovery mode but no service endpoints can be discovered

org.gcube.common.clients.exceptions.UnsupportedOperationException - if the bound source does not support the operation

org.gcube.common.clients.exceptions.UnsupportedRequestException - if the bound source does not support this particular request

org.gcube.common.clients.exceptions.ServiceException - if the call fails for any other error