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Spring Cloud Contract Shaded Dependencies
/*******************************************************************************
* 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.artifact;
import java.io.File;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* A skeleton class for artifacts.
*/
public abstract class AbstractArtifact
implements Artifact
{
private static final String SNAPSHOT = "SNAPSHOT";
private static final Pattern SNAPSHOT_TIMESTAMP = Pattern.compile( "^(.*-)?([0-9]{8}\\.[0-9]{6}-[0-9]+)$" );
public boolean isSnapshot()
{
return isSnapshot( getVersion() );
}
private static boolean isSnapshot( String version )
{
return version.endsWith( SNAPSHOT ) || SNAPSHOT_TIMESTAMP.matcher( version ).matches();
}
public String getBaseVersion()
{
return toBaseVersion( getVersion() );
}
private static String toBaseVersion( String version )
{
String baseVersion;
if ( version == null )
{
baseVersion = version;
}
else if ( version.startsWith( "[" ) || version.startsWith( "(" ) )
{
baseVersion = version;
}
else
{
Matcher m = SNAPSHOT_TIMESTAMP.matcher( version );
if ( m.matches() )
{
if ( m.group( 1 ) != null )
{
baseVersion = m.group( 1 ) + SNAPSHOT;
}
else
{
baseVersion = SNAPSHOT;
}
}
else
{
baseVersion = version;
}
}
return baseVersion;
}
/**
* Creates a new artifact with the specified coordinates, properties and file.
*
* @param version The version of the artifact, may be {@code null}.
* @param properties The properties of the artifact, may be {@code null} if none. The method may assume immutability
* of the supplied map, i.e. need not copy it.
* @param file The resolved file of the artifact, may be {@code null}.
* @return The new artifact instance, never {@code null}.
*/
private Artifact newInstance( String version, Map properties, File file )
{
return new DefaultArtifact( getGroupId(), getArtifactId(), getClassifier(), getExtension(), version, file,
properties );
}
public Artifact setVersion( String version )
{
String current = getVersion();
if ( current.equals( version ) || ( version == null && current.length() <= 0 ) )
{
return this;
}
return newInstance( version, getProperties(), getFile() );
}
public Artifact setFile( File file )
{
File current = getFile();
if ( ( current == null ) ? file == null : current.equals( file ) )
{
return this;
}
return newInstance( getVersion(), getProperties(), file );
}
public Artifact setProperties( Map properties )
{
Map current = getProperties();
if ( current.equals( properties ) || ( properties == null && current.isEmpty() ) )
{
return this;
}
return newInstance( getVersion(), copyProperties( properties ), getFile() );
}
public String getProperty( String key, String defaultValue )
{
String value = getProperties().get( key );
return ( value != null ) ? value : defaultValue;
}
/**
* Copies the specified artifact properties. This utility method should be used when creating new artifact instances
* with caller-supplied properties.
*
* @param properties The properties to copy, may be {@code null}.
* @return The copied and read-only properties, never {@code null}.
*/
protected static Map copyProperties( Map properties )
{
if ( properties != null && !properties.isEmpty() )
{
return Collections.unmodifiableMap( new HashMap( properties ) );
}
else
{
return Collections.emptyMap();
}
}
@Override
public String toString()
{
StringBuilder buffer = new StringBuilder( 128 );
buffer.append( getGroupId() );
buffer.append( ':' ).append( getArtifactId() );
buffer.append( ':' ).append( getExtension() );
if ( getClassifier().length() > 0 )
{
buffer.append( ':' ).append( getClassifier() );
}
buffer.append( ':' ).append( getVersion() );
return buffer.toString();
}
/**
* Compares this artifact with the specified object.
*
* @param obj The object to compare this artifact against, may be {@code null}.
* @return {@code true} if and only if the specified object is another {@link Artifact} with equal coordinates,
* properties and file, {@code false} otherwise.
*/
@Override
public boolean equals( Object obj )
{
if ( obj == this )
{
return true;
}
else if ( !( obj instanceof Artifact ) )
{
return false;
}
Artifact that = (Artifact) obj;
return getArtifactId().equals( that.getArtifactId() ) && getGroupId().equals( that.getGroupId() )
&& getVersion().equals( that.getVersion() ) && getExtension().equals( that.getExtension() )
&& getClassifier().equals( that.getClassifier() ) && eq( getFile(), that.getFile() )
&& getProperties().equals( that.getProperties() );
}
private static boolean eq( T s1, T s2 )
{
return s1 != null ? s1.equals( s2 ) : s2 == null;
}
/**
* Returns a hash code for this artifact.
*
* @return A hash code for the artifact.
*/
@Override
public int hashCode()
{
int hash = 17;
hash = hash * 31 + getGroupId().hashCode();
hash = hash * 31 + getArtifactId().hashCode();
hash = hash * 31 + getExtension().hashCode();
hash = hash * 31 + getClassifier().hashCode();
hash = hash * 31 + getVersion().hashCode();
hash = hash * 31 + hash( getFile() );
return hash;
}
private static int hash( Object obj )
{
return ( obj != null ) ? obj.hashCode() : 0;
}
}