org.eclipse.aether.util.artifact.DelegatingArtifact Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2010, 2012 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.util.artifact;
import java.io.File;
import java.util.Map;
import org.eclipse.aether.artifact.AbstractArtifact;
import org.eclipse.aether.artifact.Artifact;
/**
* An artifact that delegates to another artifact instance. This class serves as a base for subclasses that want to
* carry additional data fields.
*/
public abstract class DelegatingArtifact
extends AbstractArtifact
{
private final Artifact delegate;
/**
* Creates a new artifact instance that delegates to the specified artifact.
*
* @param delegate The artifact to delegate to, must not be {@code null}.
*/
protected DelegatingArtifact( Artifact delegate )
{
if ( delegate == null )
{
throw new IllegalArgumentException( "delegate artifact not specified" );
}
this.delegate = delegate;
}
/**
* Creates a new artifact instance that delegates to the specified artifact. Subclasses should use this hook to
* instantiate themselves, taking along any data from the current instance that was added.
*
* @param delegate The artifact to delegate to, must not be {@code null}.
* @return The new delegating artifact, never {@code null}.
*/
protected abstract DelegatingArtifact newInstance( Artifact delegate );
public String getGroupId()
{
return delegate.getGroupId();
}
public String getArtifactId()
{
return delegate.getArtifactId();
}
public String getVersion()
{
return delegate.getVersion();
}
public Artifact setVersion( String version )
{
Artifact artifact = delegate.setVersion( version );
if ( artifact != delegate )
{
return newInstance( artifact );
}
return this;
}
public String getBaseVersion()
{
return delegate.getBaseVersion();
}
public boolean isSnapshot()
{
return delegate.isSnapshot();
}
public String getClassifier()
{
return delegate.getClassifier();
}
public String getExtension()
{
return delegate.getExtension();
}
public File getFile()
{
return delegate.getFile();
}
public Artifact setFile( File file )
{
Artifact artifact = delegate.setFile( file );
if ( artifact != delegate )
{
return newInstance( artifact );
}
return this;
}
public String getProperty( String key, String defaultValue )
{
return delegate.getProperty( key, defaultValue );
}
public Map getProperties()
{
return delegate.getProperties();
}
public Artifact setProperties( Map properties )
{
Artifact artifact = delegate.setProperties( properties );
if ( artifact != delegate )
{
return newInstance( artifact );
}
return this;
}
@Override
public boolean equals( Object obj )
{
if ( obj == this )
{
return true;
}
if ( obj instanceof DelegatingArtifact )
{
return delegate.equals( ( (DelegatingArtifact) obj ).delegate );
}
return delegate.equals( obj );
}
@Override
public int hashCode()
{
return delegate.hashCode();
}
@Override
public String toString()
{
return delegate.toString();
}
}