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The application programming interface for the repository system.
package org.eclipse.aether.resolution;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.eclipse.aether.RepositorySystem;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.RequestTrace;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.graph.DependencyNode;
import org.eclipse.aether.repository.RemoteRepository;
/**
* A request to resolve an artifact.
*
* @see RepositorySystem#resolveArtifacts(RepositorySystemSession, java.util.Collection)
* @see Artifact#getFile()
*/
public final class ArtifactRequest
{
private Artifact artifact;
private DependencyNode node;
private List repositories = Collections.emptyList();
private String context = "";
private RequestTrace trace;
/**
* Creates an uninitialized request.
*/
public ArtifactRequest()
{
// enables default constructor
}
/**
* Creates a request with the specified properties.
*
* @param artifact The artifact to resolve, may be {@code null}.
* @param repositories The repositories to resolve the artifact from, may be {@code null}.
* @param context The context in which this request is made, may be {@code null}.
*/
public ArtifactRequest( Artifact artifact, List repositories, String context )
{
setArtifact( artifact );
setRepositories( repositories );
setRequestContext( context );
}
/**
* Creates a request from the specified dependency node.
*
* @param node The dependency node to resolve, may be {@code null}.
*/
public ArtifactRequest( DependencyNode node )
{
setDependencyNode( node );
setRepositories( node.getRepositories() );
setRequestContext( node.getRequestContext() );
}
/**
* Gets the artifact to resolve.
*
* @return The artifact to resolve or {@code null}.
*/
public Artifact getArtifact()
{
return artifact;
}
/**
* Sets the artifact to resolve.
*
* @param artifact The artifact to resolve, may be {@code null}.
* @return This request for chaining, never {@code null}.
*/
public ArtifactRequest setArtifact( Artifact artifact )
{
this.artifact = artifact;
return this;
}
/**
* Gets the dependency node (if any) for which to resolve the artifact.
*
* @return The dependency node to resolve or {@code null} if unknown.
*/
public DependencyNode getDependencyNode()
{
return node;
}
/**
* Sets the dependency node to resolve.
*
* @param node The dependency node to resolve, may be {@code null}.
* @return This request for chaining, never {@code null}.
*/
public ArtifactRequest setDependencyNode( DependencyNode node )
{
this.node = node;
if ( node != null )
{
setArtifact( node.getDependency().getArtifact() );
}
return this;
}
/**
* Gets the repositories to resolve the artifact from.
*
* @return The repositories, never {@code null}.
*/
public List getRepositories()
{
return repositories;
}
/**
* Sets the repositories to resolve the artifact from.
*
* @param repositories The repositories, may be {@code null}.
* @return This request for chaining, never {@code null}.
*/
public ArtifactRequest setRepositories( List repositories )
{
if ( repositories == null )
{
this.repositories = Collections.emptyList();
}
else
{
this.repositories = repositories;
}
return this;
}
/**
* Adds the specified repository for the resolution.
*
* @param repository The repository to add, may be {@code null}.
* @return This request for chaining, never {@code null}.
*/
public ArtifactRequest addRepository( RemoteRepository repository )
{
if ( repository != null )
{
if ( this.repositories.isEmpty() )
{
this.repositories = new ArrayList();
}
this.repositories.add( repository );
}
return this;
}
/**
* Gets the context in which this request is made.
*
* @return The context, never {@code null}.
*/
public String getRequestContext()
{
return context;
}
/**
* Sets the context in which this request is made.
*
* @param context The context, may be {@code null}.
* @return This request for chaining, never {@code null}.
*/
public ArtifactRequest setRequestContext( String context )
{
this.context = ( context != null ) ? context : "";
return this;
}
/**
* Gets the trace information that describes the higher level request/operation in which this request is issued.
*
* @return The trace information about the higher level operation or {@code null} if none.
*/
public RequestTrace getTrace()
{
return trace;
}
/**
* Sets the trace information that describes the higher level request/operation in which this request is issued.
*
* @param trace The trace information about the higher level operation, may be {@code null}.
* @return This request for chaining, never {@code null}.
*/
public ArtifactRequest setTrace( RequestTrace trace )
{
this.trace = trace;
return this;
}
@Override
public String toString()
{
return getArtifact() + " < " + getRepositories();
}
}