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package org.apache.maven.repository.metadata;
/*
* 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 org.apache.maven.artifact.ArtifactScopeEnum;
/**
* metadata graph vertice - just a wrapper around artifact's metadata
*
* @author <a href="oleg@codehaus.org">Oleg Gusakov</a>
*/
public class MetadataGraphVertex
implements Comparable<MetadataGraphVertex>
{
ArtifactMetadata md;
// indications to use these in comparrison
private boolean compareVersion = false;
private boolean compareScope = false;
public MetadataGraphVertex( ArtifactMetadata md )
{
super();
this.md = md;
}
public MetadataGraphVertex( ArtifactMetadata md, boolean compareVersion, boolean compareScope )
{
this( md );
this.compareVersion = compareVersion;
this.compareScope = compareScope;
}
public ArtifactMetadata getMd()
{
return md;
}
public void setMd( ArtifactMetadata md )
{
this.md = md;
}
// ---------------------------------------------------------------------
public boolean isCompareVersion()
{
return compareVersion;
}
public void setCompareVersion( boolean compareVersion )
{
this.compareVersion = compareVersion;
}
public boolean isCompareScope()
{
return compareScope;
}
public void setCompareScope( boolean compareScope )
{
this.compareScope = compareScope;
}
// ---------------------------------------------------------------------
@Override
public String toString()
{
return "[" + ( md == null ? "no metadata" : md.toString() ) + "]";
}
// ---------------------------------------------------------------------
private static int compareStrings( String s1, String s2 )
{
if ( s1 == null && s2 == null )
{
return 0;
}
if ( s1 == null /* && s2 != null */ )
{
return -1;
}
if ( /* s1 != null && */ s2 == null )
{
return 1;
}
return s1.compareTo( s2 );
}
// ---------------------------------------------------------------------
public int compareTo( MetadataGraphVertex vertex )
{
if ( vertex == null || vertex.getMd() == null )
{
return 1;
}
ArtifactMetadata vmd = vertex.getMd();
if ( vmd == null )
{
if ( md == null )
{
return 0;
}
else
{
return 1;
}
}
int g = compareStrings( md.groupId, vmd.groupId );
if ( g == 0 )
{
int a = compareStrings( md.artifactId, vmd.artifactId );
if ( a == 0 )
{
if ( compareVersion )
{
int v = compareStrings( md.version, vmd.version );
if ( v == 0 )
{
if ( compareScope )
{
String s1 = ArtifactScopeEnum.checkScope( md.artifactScope ).getScope();
String s2 = ArtifactScopeEnum.checkScope( vmd.artifactScope ).getScope();
return s1.compareTo( s2 );
}
else
{
return 0;
}
}
else
{
return v;
}
}
else
{
return 0;
}
}
else
{
return a;
}
}
return g;
}
// ---------------------------------------------------------------------
@Override
public boolean equals( Object vo )
{
if ( vo == null || !( vo instanceof MetadataGraphVertex ) )
{
return false;
}
return compareTo( (MetadataGraphVertex) vo ) == 0;
}
// ---------------------------------------------------------------------
@Override
public int hashCode()
{
if ( md == null )
{
return super.hashCode();
}
StringBuilder hashString = new StringBuilder( 128 );
hashString.append( md.groupId ).append( "|" );
hashString.append( md.artifactId ).append( "|" );
if ( compareVersion )
{
hashString.append( md.version ).append( "|" );
}
if ( compareScope )
{
hashString.append( md.getArtifactScope() ).append( "|" );
}
return hashString.toString().hashCode();
// BASE64Encoder b64 = new BASE64Encoder();
// return b64.encode( hashString.toString().getBytes() ).hashCode();
}
// ---------------------------------------------------------------------
// ---------------------------------------------------------------------
}
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