-/*******************************************************************************
- * Copyright (c) 2010, 2013 Sonatype, Inc.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Sonatype, Inc. - initial API and implementation
- *******************************************************************************/
-package org.eclipse.aether;
-
-import java.util.Map;
-
-import org.eclipse.aether.artifact.ArtifactTypeRegistry;
-import org.eclipse.aether.collection.DependencyGraphTransformer;
-import org.eclipse.aether.collection.DependencyManager;
-import org.eclipse.aether.collection.DependencySelector;
-import org.eclipse.aether.collection.DependencyTraverser;
-import org.eclipse.aether.collection.VersionFilter;
-import org.eclipse.aether.repository.AuthenticationSelector;
-import org.eclipse.aether.repository.LocalRepository;
-import org.eclipse.aether.repository.LocalRepositoryManager;
-import org.eclipse.aether.repository.MirrorSelector;
-import org.eclipse.aether.repository.ProxySelector;
-import org.eclipse.aether.repository.RepositoryPolicy;
-import org.eclipse.aether.repository.WorkspaceReader;
-import org.eclipse.aether.resolution.ArtifactDescriptorPolicy;
-import org.eclipse.aether.resolution.ResolutionErrorPolicy;
-import org.eclipse.aether.transfer.TransferListener;
-
-/**
- * Defines settings and components that control the repository system. Once initialized, the session object itself is
- * supposed to be immutable and hence can safely be shared across an entire application and any concurrent threads
- * reading it. Components that wish to tweak some aspects of an existing session should use the copy constructor of
- * {@link DefaultRepositorySystemSession} and its mutators to derive a custom session.
- *
- * @noimplement This interface is not intended to be implemented by clients.
- * @noextend This interface is not intended to be extended by clients.
- */
-public interface RepositorySystemSession
-{
-
- /**
- * Indicates whether the repository system operates in offline mode and avoids/refuses any access to remote
- * repositories.
- *
- * @return {@code true} if the repository system is in offline mode, {@code false} otherwise.
- */
- boolean isOffline();
-
- /**
- * Indicates whether repositories declared in artifact descriptors should be ignored during transitive dependency
- * collection. If enabled, only the repositories originally provided with the collect request will be considered.
- *
- * @return {@code true} if additional repositories from artifact descriptors are ignored, {@code false} to merge
- * those with the originally specified repositories.
- */
- boolean isIgnoreArtifactDescriptorRepositories();
-
- /**
- * Gets the policy which controls whether resolutions errors from remote repositories should be cached.
- *
- * @return The resolution error policy for this session or {@code null} if resolution errors should generally not be
- * cached.
- */
- ResolutionErrorPolicy getResolutionErrorPolicy();
-
- /**
- * Gets the policy which controls how errors related to reading artifact descriptors should be handled.
- *
- * @return The descriptor error policy for this session or {@code null} if descriptor errors should generally not be
- * tolerated.
- */
- ArtifactDescriptorPolicy getArtifactDescriptorPolicy();
-
- /**
- * Gets the global checksum policy. If set, the global checksum policy overrides the checksum policies of the remote
- * repositories being used for resolution.
- *
- * @return The global checksum policy or {@code null}/empty if not set and the per-repository policies apply.
- * @see RepositoryPolicy#CHECKSUM_POLICY_FAIL
- * @see RepositoryPolicy#CHECKSUM_POLICY_IGNORE
- * @see RepositoryPolicy#CHECKSUM_POLICY_WARN
- */
- String getChecksumPolicy();
-
- /**
- * Gets the global update policy. If set, the global update policy overrides the update policies of the remote
- * repositories being used for resolution.
- *
- * @return The global update policy or {@code null}/empty if not set and the per-repository policies apply.
- * @see RepositoryPolicy#UPDATE_POLICY_ALWAYS
- * @see RepositoryPolicy#UPDATE_POLICY_DAILY
- * @see RepositoryPolicy#UPDATE_POLICY_NEVER
- */
- String getUpdatePolicy();
-
- /**
- * Gets the local repository used during this session. This is a convenience method for
- * {@link LocalRepositoryManager#getRepository()}.
- *
- * @return The local repository being during this session, never {@code null}.
- */
- LocalRepository getLocalRepository();
-
- /**
- * Gets the local repository manager used during this session.
- *
- * @return The local repository manager used during this session, never {@code null}.
- */
- LocalRepositoryManager getLocalRepositoryManager();
-
- /**
- * Gets the workspace reader used during this session. If set, the workspace reader will usually be consulted first
- * to resolve artifacts.
- *
- * @return The workspace reader for this session or {@code null} if none.
- */
- WorkspaceReader getWorkspaceReader();
-
- /**
- * Gets the listener being notified of actions in the repository system.
- *
- * @return The repository listener or {@code null} if none.
- */
- RepositoryListener getRepositoryListener();
-
- /**
- * Gets the listener being notified of uploads/downloads by the repository system.
- *
- * @return The transfer listener or {@code null} if none.
- */
- TransferListener getTransferListener();
-
- /**
- * Gets the system properties to use, e.g. for processing of artifact descriptors. System properties are usually
- * collected from the runtime environment like {@link System#getProperties()} and environment variables.
- *
- * @return The (read-only) system properties, never {@code null}.
- */
- Map<String, String> getSystemProperties();
-
- /**
- * Gets the user properties to use, e.g. for processing of artifact descriptors. User properties are similar to
- * system properties but are set on the discretion of the user and hence are considered of higher priority than
- * system properties.
- *
- * @return The (read-only) user properties, never {@code null}.
- */
- Map<String, String> getUserProperties();
-
- /**
- * Gets the configuration properties used to tweak internal aspects of the repository system (e.g. thread pooling,
- * connector-specific behavior, etc.)
- *
- * @return The (read-only) configuration properties, never {@code null}.
- * @see ConfigurationProperties
- */
- Map<String, Object> getConfigProperties();
-
- /**
- * Gets the mirror selector to use for repositories discovered in artifact descriptors. Note that this selector is
- * not used for remote repositories which are passed as request parameters to the repository system, those
- * repositories are supposed to denote the effective repositories.
- *
- * @return The mirror selector to use, never {@code null}.
- * @see RepositorySystem#newResolutionRepositories(RepositorySystemSession, java.util.List)
- */
- MirrorSelector getMirrorSelector();
-
- /**
- * Gets the proxy selector to use for repositories discovered in artifact descriptors. Note that this selector is
- * not used for remote repositories which are passed as request parameters to the repository system, those
- * repositories are supposed to have their proxy (if any) already set.
- *
- * @return The proxy selector to use, never {@code null}.
- * @see org.eclipse.aether.repository.RemoteRepository#getProxy()
- * @see RepositorySystem#newResolutionRepositories(RepositorySystemSession, java.util.List)
- */
- ProxySelector getProxySelector();
-
- /**
- * Gets the authentication selector to use for repositories discovered in artifact descriptors. Note that this
- * selector is not used for remote repositories which are passed as request parameters to the repository system,
- * those repositories are supposed to have their authentication (if any) already set.
- *
- * @return The authentication selector to use, never {@code null}.
- * @see org.eclipse.aether.repository.RemoteRepository#getAuthentication()
- * @see RepositorySystem#newResolutionRepositories(RepositorySystemSession, java.util.List)
- */
- AuthenticationSelector getAuthenticationSelector();
-
- /**
- * Gets the registry of artifact types recognized by this session, for instance when processing artifact
- * descriptors.
- *
- * @return The artifact type registry, never {@code null}.
- */
- ArtifactTypeRegistry getArtifactTypeRegistry();
-
- /**
- * Gets the dependency traverser to use for building dependency graphs.
- *
- * @return The dependency traverser to use for building dependency graphs or {@code null} if dependencies are
- * unconditionally traversed.
- */
- DependencyTraverser getDependencyTraverser();
-
- /**
- * Gets the dependency manager to use for building dependency graphs.
- *
- * @return The dependency manager to use for building dependency graphs or {@code null} if dependency management is
- * not performed.
- */
- DependencyManager getDependencyManager();
-
- /**
- * Gets the dependency selector to use for building dependency graphs.
- *
- * @return The dependency selector to use for building dependency graphs or {@code null} if dependencies are
- * unconditionally included.
- */
- DependencySelector getDependencySelector();
-
- /**
- * Gets the version filter to use for building dependency graphs.
- *
- * @return The version filter to use for building dependency graphs or {@code null} if versions aren't filtered.
- */
- VersionFilter getVersionFilter();
-
- /**
- * Gets the dependency graph transformer to use for building dependency graphs.
- *
- * @return The dependency graph transformer to use for building dependency graphs or {@code null} if none.
- */
- DependencyGraphTransformer getDependencyGraphTransformer();
-
- /**
- * Gets the custom data associated with this session.
- *
- * @return The session data, never {@code null}.
- */
- SessionData getData();
-
- /**
- * Gets the cache the repository system may use to save data for future reuse during the session.
- *
- * @return The repository cache or {@code null} if none.
- */
- RepositoryCache getCache();
-
-}