Interface RepositorySystem
- All Superinterfaces:
AutoCloseable
,Closeable
- All Known Implementing Classes:
DefaultRepositorySystem
When the repository system or the application integrating it is about to exit, invoke the shutdown()
to let
resolver system perform possible resource cleanups.
- Restriction:
- This interface is not intended to be extended by clients.
- Restriction:
- This interface is not intended to be implemented by clients.
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Method Summary
Modifier and TypeMethodDescriptionvoid
addOnSystemEndedHandler
(Runnable handler) Registers an "on repository system end" handler, executed after repository system is shut down.default void
close()
Closes this instance, invokesshutdown()
.collectDependencies
(RepositorySystemSession session, CollectRequest request) Collects the transitive dependencies of an artifact and builds a dependency graph.Creates a brand-new session builder instance that produces "top level" (root) session.deploy
(RepositorySystemSession session, DeployRequest request) Uploads a collection of artifacts and their accompanying metadata to a remote repository.flattenDependencyNodes
(RepositorySystemSession session, DependencyNode root, DependencyFilter filter) Flattens the provided graph asDependencyNode
into aList
<DependencyNode>
according to session configuration.install
(RepositorySystemSession session, InstallRequest request) Installs a collection of artifacts and their accompanying metadata to the local repository.newDeploymentRepository
(RepositorySystemSession session, RemoteRepository repository) Forms a remote repository suitable for artifact deployment by applying the session's authentication selector and similar network configuration to the given repository prototype.newLocalRepositoryManager
(RepositorySystemSession session, List<LocalRepository> localRepositories) Creates a new manager for the specified local repositories.newLocalRepositoryManager
(RepositorySystemSession session, LocalRepository localRepository) Creates a new manager for the specified local repository.newLocalRepositoryManager
(RepositorySystemSession session, LocalRepository... localRepositories) Creates a new manager for the specified local repositories.newResolutionRepositories
(RepositorySystemSession session, List<RemoteRepository> repositories) Forms remote repositories suitable for artifact resolution by applying the session's authentication selector and similar network configuration to the given repository prototypes.newSyncContext
(RepositorySystemSession session, boolean shared) Creates a new synchronization context.readArtifactDescriptor
(RepositorySystemSession session, ArtifactDescriptorRequest request) Gets information about an artifact like its direct dependencies and potential relocations.resolveArtifact
(RepositorySystemSession session, ArtifactRequest request) Resolves the path for an artifact.resolveArtifacts
(RepositorySystemSession session, Collection<? extends ArtifactRequest> requests) Resolves the paths for a collection of artifacts.resolveDependencies
(RepositorySystemSession session, DependencyRequest request) Collects and resolves the transitive dependencies of an artifact.resolveMetadata
(RepositorySystemSession session, Collection<? extends MetadataRequest> requests) Resolves the paths for a collection of metadata.resolveVersion
(RepositorySystemSession session, VersionRequest request) Resolves an artifact's meta version (if any) to a concrete version.resolveVersionRange
(RepositorySystemSession session, VersionRangeRequest request) Expands an artifact's version range to a list of matching versions, in ascending order.void
shutdown()
Signals to repository system to shut down.
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Method Details
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resolveVersionRange
VersionRangeResult resolveVersionRange(RepositorySystemSession session, VersionRangeRequest request) throws VersionRangeResolutionException Expands an artifact's version range to a list of matching versions, in ascending order. For example, resolves "[3.8,4.0)" to "3.8", "3.8.1", "3.8.2". Note that the returned list of versions is only dependent on the configured repositories and their contents, the list is not processed by thesession's version filter
.The supplied request may also refer to a single concrete version rather than a version range. In this case though, the result contains simply the (parsed) input version, regardless of the repositories and their contents.
- Parameters:
session
- The repository session, must not benull
.request
- The version range request, must not benull
. It holds theArtifact
whose version range to resolve.- Returns:
- The version range result, never
null
. - Throws:
VersionRangeResolutionException
- If the requested range could not be parsed. Note that an empty range does not raise an exception.- See Also:
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resolveVersion
VersionResult resolveVersion(RepositorySystemSession session, VersionRequest request) throws VersionResolutionException Resolves an artifact's meta version (if any) to a concrete version. For example, resolves "1.0-SNAPSHOT" to "1.0-20090208.132618-23".- Parameters:
session
- The repository session, must not benull
.request
- The version request, must not benull
. It holds theArtifact
whose version to resolve.- Returns:
- The version result, never
null
. - Throws:
VersionResolutionException
- If the metaversion could not be resolved.- See Also:
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readArtifactDescriptor
ArtifactDescriptorResult readArtifactDescriptor(RepositorySystemSession session, ArtifactDescriptorRequest request) throws ArtifactDescriptorException Gets information about an artifact like its direct dependencies and potential relocations.- Parameters:
session
- The repository session, must not benull
.request
- The descriptor request, must not benull
.- Returns:
- The descriptor result, never
null
. - Throws:
ArtifactDescriptorException
- If the artifact descriptor could not be read.- See Also:
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collectDependencies
CollectResult collectDependencies(RepositorySystemSession session, CollectRequest request) throws DependencyCollectionException Collects the transitive dependencies of an artifact and builds a dependency graph. Note that this operation is only concerned about determining the coordinates of the transitive dependencies. To also resolve the actual artifact files, useresolveDependencies(RepositorySystemSession, DependencyRequest)
.- Parameters:
session
- The repository session, must not benull
.request
- The collection request, must not benull
.- Returns:
- The collection result, never
null
. - Throws:
DependencyCollectionException
- If the dependency tree could not be built.- See Also:
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resolveDependencies
DependencyResult resolveDependencies(RepositorySystemSession session, DependencyRequest request) throws DependencyResolutionException Collects and resolves the transitive dependencies of an artifact. This operation is essentially a combination ofcollectDependencies(RepositorySystemSession, CollectRequest)
andresolveArtifacts(RepositorySystemSession, Collection)
.- Parameters:
session
- The repository session, must not benull
.request
- The dependency request, must not benull
.- Returns:
- The dependency result, never
null
. - Throws:
DependencyResolutionException
- If the dependency tree could not be built or any dependency artifact could not be resolved.- See Also:
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flattenDependencyNodes
List<DependencyNode> flattenDependencyNodes(RepositorySystemSession session, DependencyNode root, DependencyFilter filter) Flattens the provided graph asDependencyNode
into aList
<DependencyNode>
according to session configuration.- Parameters:
session
- The repository session, must not benull
.root
- The dependency node root of the graph, must not benull
.filter
- The filter to apply, may benull
.- Returns:
- The flattened list of dependency nodes, never
null
. - Since:
- 2.0.0
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resolveArtifact
ArtifactResult resolveArtifact(RepositorySystemSession session, ArtifactRequest request) throws ArtifactResolutionException Resolves the path for an artifact. The artifact will be downloaded to the local repository if necessary. An artifact that is already resolved will be skipped and is not re-resolved. In general, callers must not assume any relationship between an artifact's resolved filename and its coordinates. Note that this method assumes that any relocations have already been processed.- Parameters:
session
- The repository session, must not benull
.request
- The resolution request, must not benull
.- Returns:
- The resolution result, never
null
. - Throws:
ArtifactResolutionException
- If the artifact could not be resolved.- See Also:
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resolveArtifacts
List<ArtifactResult> resolveArtifacts(RepositorySystemSession session, Collection<? extends ArtifactRequest> requests) throws ArtifactResolutionException Resolves the paths for a collection of artifacts. Artifacts will be downloaded to the local repository if necessary. Artifacts that are already resolved will be skipped and are not re-resolved. In general, callers must not assume any relationship between an artifact's filename and its coordinates. Note that this method assumes that any relocations have already been processed.- Parameters:
session
- The repository session, must not benull
.requests
- The resolution requests, must not benull
.- Returns:
- The resolution results (in request order), never
null
. - Throws:
ArtifactResolutionException
- If any artifact could not be resolved.- See Also:
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resolveMetadata
List<MetadataResult> resolveMetadata(RepositorySystemSession session, Collection<? extends MetadataRequest> requests) Resolves the paths for a collection of metadata. Metadata will be downloaded to the local repository if necessary, e.g. because it hasn't been cached yet or the cache is deemed outdated.- Parameters:
session
- The repository session, must not benull
.requests
- The resolution requests, must not benull
.- Returns:
- The resolution results (in request order), never
null
. - See Also:
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install
InstallResult install(RepositorySystemSession session, InstallRequest request) throws InstallationException Installs a collection of artifacts and their accompanying metadata to the local repository.- Parameters:
session
- The repository session, must not benull
.request
- The installation request, must not benull
.- Returns:
- The installation result, never
null
. - Throws:
InstallationException
- If any artifact/metadata from the request could not be installed.
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deploy
DeployResult deploy(RepositorySystemSession session, DeployRequest request) throws DeploymentException Uploads a collection of artifacts and their accompanying metadata to a remote repository.- Parameters:
session
- The repository session, must not benull
.request
- The deployment request, must not benull
.- Returns:
- The deployment result, never
null
. - Throws:
DeploymentException
- If any artifact/metadata from the request could not be deployed.- See Also:
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newLocalRepositoryManager
LocalRepositoryManager newLocalRepositoryManager(RepositorySystemSession session, LocalRepository localRepository) Creates a new manager for the specified local repository. If the specified local repository has no type, the default local repository type of the system will be used. Note: It is expected that this method invocation is one of the last steps of setting up a new session, in particular any configuration properties should have been set already.- Parameters:
session
- The repository system session from which to configure the manager, must not benull
.localRepository
- The local repository to create a manager for, must not benull
.- Returns:
- The local repository manager, never
null
. - Throws:
IllegalArgumentException
- If the specified repository type is not recognized or no base directory is given.
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newLocalRepositoryManager
LocalRepositoryManager newLocalRepositoryManager(RepositorySystemSession session, LocalRepository... localRepositories) Creates a new manager for the specified local repositories. If the specified local repository has no type, the default local repository type of the system will be used. Note: It is expected that this method invocation is one of the last steps of setting up a new session, in particular any configuration properties should have been set already. Note: this method accepts multiple local repositories, in which case it creates chained local repository.- Parameters:
session
- The repository system session from which to configure the manager, must not benull
.localRepositories
- The local repositories to create a manager for, must not benull
nor empty array.- Returns:
- The local repository manager, never
null
. - Throws:
IllegalArgumentException
- If the specified repository type is not recognized or no base directory is given.- Since:
- 2.0.0
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newLocalRepositoryManager
LocalRepositoryManager newLocalRepositoryManager(RepositorySystemSession session, List<LocalRepository> localRepositories) Creates a new manager for the specified local repositories. If the specified local repository has no type, the default local repository type of the system will be used. Note: It is expected that this method invocation is one of the last steps of setting up a new session, in particular any configuration properties should have been set already. Note: this method accepts multiple local repositories, in which case it creates chained local repository.- Parameters:
session
- The repository system session from which to configure the manager, must not benull
.localRepositories
- The local repositories to create a manager for, must not benull
nor empty.- Returns:
- The local repository manager, never
null
. - Throws:
IllegalArgumentException
- If the specified repository type is not recognized or no base directory is given.- Since:
- 2.0.0
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newSyncContext
Creates a new synchronization context.- Parameters:
session
- The repository session during which the context will be used, must not benull
.shared
- A flag indicating whether access to the artifacts/metadata associated with the new context can be shared among concurrent readers or whether access needs to be exclusive to the calling thread.- Returns:
- The synchronization context, never
null
.
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newResolutionRepositories
List<RemoteRepository> newResolutionRepositories(RepositorySystemSession session, List<RemoteRepository> repositories) Forms remote repositories suitable for artifact resolution by applying the session's authentication selector and similar network configuration to the given repository prototypes. As noted forRepositorySystemSession.getAuthenticationSelector()
etc. the remote repositories passed to e.g.resolveArtifact()
are used as is and expected to already carry any required authentication or proxy configuration. This method can be used to apply the authentication/proxy configuration from a session to a bare repository definition to obtain the complete repository definition for use in the resolution request.- Parameters:
session
- The repository system session from which to configure the repositories, must not benull
.repositories
- The repository prototypes from which to derive the resolution repositories, must not benull
or containnull
elements.- Returns:
- The resolution repositories, never
null
. Note that there is generally no 1:1 relationship of the obtained repositories to the original inputs due to mirror selection potentially aggregating multiple repositories. - See Also:
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newDeploymentRepository
RemoteRepository newDeploymentRepository(RepositorySystemSession session, RemoteRepository repository) Forms a remote repository suitable for artifact deployment by applying the session's authentication selector and similar network configuration to the given repository prototype. As noted forRepositorySystemSession.getAuthenticationSelector()
etc. the remote repository passed todeploy()
is used as is and expected to already carry any required authentication or proxy configuration. This method can be used to apply the authentication/proxy configuration from a session to a bare repository definition to obtain the complete repository definition for use in the deployment request.- Parameters:
session
- The repository system session from which to configure the repository, must not benull
.repository
- The repository prototype from which to derive the deployment repository, must not benull
.- Returns:
- The deployment repository, never
null
. - See Also:
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addOnSystemEndedHandler
Registers an "on repository system end" handler, executed after repository system is shut down.- Parameters:
handler
- The handler, must not benull
.- Since:
- 1.9.0
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createSessionBuilder
Creates a brand-new session builder instance that produces "top level" (root) session. Top level sessions are associated with its creatorRepositorySystem
instance, and may be used only with that given instance and only within the lifespan of it, and after use should be closed.- Since:
- 2.0.0
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shutdown
void shutdown()Signals to repository system to shut down. Shut down instance is not usable anymore.Repository system may perform some resource cleanup, if applicable. Not using this method may cause leaks or unclean shutdown of some subsystem.
When shutdown happens, all the registered on-close handlers will be invoked (even if some throws), and at end of operation a
MultiRuntimeException
may be thrown, signaling that some handler(s) failed. This exception may be ignored, is at the discretion of caller.- Since:
- 1.9.0
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close
Closes this instance, invokesshutdown()
.- Specified by:
close
in interfaceAutoCloseable
- Specified by:
close
in interfaceCloseable
- Since:
- 2.0.0
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