generalized tree into graph

git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@760596 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Oleg Gusakov 2009-03-31 20:33:24 +00:00
parent bb33172f47
commit 30053a1000
2 changed files with 3 additions and 290 deletions

View File

@ -66,7 +66,7 @@ public class MetadataResolutionResult
private Set<Artifact> artifacts;
private MetadataTreeNode resolvedTree;
private MetadataGraph resolvedTree;
public Artifact getOriginatingArtifact()
{
@ -343,12 +343,12 @@ public class MetadataResolutionResult
return sb.toString();
}
public MetadataTreeNode getResolvedTree()
public MetadataGraph getResolvedTree()
{
return resolvedTree;
}
public void setResolvedTree( MetadataTreeNode resolvedTree )
public void setResolvedTree( MetadataGraph resolvedTree )
{
this.resolvedTree = resolvedTree;
}

View File

@ -1,287 +0,0 @@
/**
* 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.
*/
package org.apache.maven.repository;
import java.io.IOException;
import java.io.StringWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;
import org.apache.maven.artifact.Artifact;
/**
* artifact metadata Tree
*
* @author <a href="oleg@codehaus.org">Oleg Gusakov</a>
*/
public class MetadataTreeNode
{
private static final int DEFAULT_CHILDREN_COUNT = 16;
/**
* this node's artifact MD
*/
private MavenArtifactMetadata metadata;
/**
* is there a real artifact behind this node, or it's just a helper ?
*/
private boolean real = true;
/**
* parent node
*/
private MetadataTreeNode parent;
/**
* node unique id, used to identify this node in external tree manipulations, such as
*/
private int id;
/**
* actual found versions
*/
private List<MetadataTreeNode> children;
// ------------------------------------------------------------------------
public int countNodes()
{
return countNodes( this );
}
// ------------------------------------------------------------------------
public static int countNodes( MetadataTreeNode node )
{
int res = 1;
if ( node.children != null && node.children.size() > 0 )
{
for ( MetadataTreeNode child : node.children )
{
res += countNodes( child );
}
}
return res;
}
// ------------------------------------------------------------------------
public MetadataTreeNode()
{
}
// ------------------------------------------------------------------------
public MetadataTreeNode( MavenArtifactMetadata md, MetadataTreeNode parent )
{
this.metadata = md;
this.parent = parent;
}
// ------------------------------------------------------------------------
/**
* dependencies are ordered in the POM - they should be added in the POM order
*/
public MetadataTreeNode addChild( MetadataTreeNode kid )
{
if ( kid == null )
{
return this;
}
if ( children == null )
{
children = new ArrayList<MetadataTreeNode>( DEFAULT_CHILDREN_COUNT );
}
kid.setParent( this );
children.add( kid );
return this;
}
@Override
public String toString()
{
return metadata == null ? "no metadata, parent " + ( parent == null ? "null" : parent.toString() ) : metadata.toString()
+ ":d=" + getDepth();
}
// ------------------------------------------------------------------------
public boolean hasChildren()
{
return children != null;
}
// ------------------------------------------------------------------------
public MavenArtifactMetadata getMetadata()
{
return metadata;
}
public MetadataTreeNode getParent()
{
return parent;
}
public int getDepth()
{
int depth = 0;
for ( MetadataTreeNode p = parent; p != null; p = p.parent )
++depth;
return depth;
}
public int getMaxDepth( int depth )
{
int res = 0;
if ( !hasChildren() )
return depth + 1;
for ( MetadataTreeNode kid : children )
{
int kidDepth = kid.getMaxDepth( depth + 1 );
if ( kidDepth > res )
res = kidDepth;
}
return res;
}
public void setParent( MetadataTreeNode parent )
{
this.parent = parent;
}
public List<MetadataTreeNode> getChildren()
{
return children;
}
public boolean isReal()
{
return real;
}
public void setReal( boolean real)
{
this.real = real;
}
// ------------------------------------------------------------------------
public static final MetadataTreeNode deepCopy( MetadataTreeNode node )
{
MetadataTreeNode res = new MetadataTreeNode( node.getMetadata(), node.getParent() );
res.setId( node.getId() );
if ( node.hasChildren() )
for ( MetadataTreeNode kid : node.children )
{
MetadataTreeNode deepKid = deepCopy( kid );
res.addChild( deepKid );
}
return res;
}
// ----------------------------------------------------------------
/**
* helper method to print the tree into a Writer
*/
public static final void showNode( MetadataTreeNode n, int level, Writer wr )
throws IOException
{
if( n == null )
{
wr.write( "null node" );
return;
}
for ( int i = 0; i < level; i++ )
wr.write( " " );
wr.write( level + " " + n.getMetadata() + "\n" );
if ( n.hasChildren() )
{
for ( MetadataTreeNode kid : n.getChildren() )
showNode( kid, level + 1, wr );
}
}
// ----------------------------------------------------------------
/**
* helper method to print the tree into sysout
*/
public static final void showNode( MetadataTreeNode n, int level )
throws IOException
{
StringWriter sw = new StringWriter();
MetadataTreeNode.showNode( n, 0, sw );
System.out.println( sw.toString() );
}
// ------------------------------------------------------------------------
public int getId()
{
return id;
}
public void setId( int id )
{
this.id = id;
}
// ------------------------------------------------------------------------
public static void reNumber( MetadataTreeNode node, int startNum )
{
reNum( node, new Counter( startNum ) );
}
// ------------------------------------------------------------------------
private static void reNum( MetadataTreeNode node, Counter num )
{
node.setId( num.next() );
if ( node.hasChildren() )
for ( MetadataTreeNode kid : node.getChildren() )
reNum( kid, num );
}
// ------------------------------------------------------------------------
// ------------------------------------------------------------------------
}
// ------------------------------------------------------------------------
class Counter
{
int n;
public Counter( int n )
{
this.n = n;
}
int next()
{
return n++;
}
}