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Quick Fix for quarkusio/quarkus#24285
Signed-off-by: Christoph Läubrich <christoph@laeubi-soft.de>
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Christoph Läubrich
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Mar 15, 2022
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maven-core/src/main/java/org/apache/maven/internal/aether/MavenChainedWorkspaceReader.java
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package org.apache.maven.internal.aether; | ||
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import java.io.File; | ||
import java.util.Collection; | ||
import java.util.List; | ||
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import org.apache.maven.model.Model; | ||
import org.apache.maven.repository.internal.MavenWorkspaceReader; | ||
import org.eclipse.aether.artifact.Artifact; | ||
import org.eclipse.aether.repository.WorkspaceReader; | ||
import org.eclipse.aether.repository.WorkspaceRepository; | ||
import org.eclipse.aether.util.repository.ChainedWorkspaceReader; | ||
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/** | ||
* A maven workspace reader that delegates to a chain of other readers, effectively aggregating their contents. | ||
*/ | ||
public final class MavenChainedWorkspaceReader | ||
implements MavenWorkspaceReader | ||
{ | ||
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private ChainedWorkspaceReader delegate; | ||
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private WorkspaceReader[] readers; | ||
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/** | ||
* Creates a new workspace reader by chaining the specified readers. | ||
* | ||
* @param readers The readers to chain must not be {@code null}. | ||
*/ | ||
private MavenChainedWorkspaceReader( WorkspaceReader... readers ) | ||
{ | ||
this.delegate = new ChainedWorkspaceReader( readers ); | ||
this.readers = readers; | ||
} | ||
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@Override | ||
public Model findModel( Artifact artifact ) | ||
{ | ||
for ( WorkspaceReader workspaceReader : readers ) | ||
{ | ||
if ( workspaceReader instanceof MavenWorkspaceReader ) | ||
{ | ||
Model model = ( (MavenWorkspaceReader) workspaceReader ).findModel( artifact ); | ||
if ( model != null ) | ||
{ | ||
return model; | ||
} | ||
} | ||
} | ||
return null; | ||
} | ||
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@Override | ||
public WorkspaceRepository getRepository() | ||
{ | ||
return delegate.getRepository(); | ||
} | ||
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@Override | ||
public File findArtifact( Artifact artifact ) | ||
{ | ||
return delegate.findArtifact( artifact ); | ||
} | ||
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@Override | ||
public List<String> findVersions( Artifact artifact ) | ||
{ | ||
return delegate.findVersions( artifact ); | ||
} | ||
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/** | ||
* chains a collection of {@link WorkspaceReader}s | ||
* @param workspaceReaderCollection the collection of readers, might be empty but never <code>null</code> | ||
* @return if the collection contains only one item returns the single item, otherwise creates a new | ||
* {@link MavenChainedWorkspaceReader} chaining all readers in the order of the given collection. | ||
*/ | ||
public static WorkspaceReader of( Collection<WorkspaceReader> workspaceReaderCollection ) | ||
{ | ||
WorkspaceReader[] readers = workspaceReaderCollection.toArray( new WorkspaceReader[0] ); | ||
if ( readers.length == 1 ) | ||
{ | ||
return readers[0]; | ||
} | ||
return new MavenChainedWorkspaceReader( readers ); | ||
} | ||
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} |