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Posted to dev@maven.apache.org by jv...@apache.org on 2002/12/31 08:01:06 UTC
cvs commit: jakarta-turbine-maven/src/java/org/apache/maven/jelly/tags/maven DependencyResolver.java
jvanzyl 2002/12/30 23:01:06
Added: src/java/org/apache/maven/jelly/tags/maven
DependencyResolver.java
Log:
refactoring. update to follow
Revision Changes Path
1.1 jakarta-turbine-maven/src/java/org/apache/maven/jelly/tags/maven/DependencyResolver.java
Index: DependencyResolver.java
===================================================================
package org.apache.maven.jelly.tags.maven;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache MavenSession" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Apache MavenSession", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* ====================================================================
*/
import org.apache.commons.graph.domain.dependency.DependencyGraph;
import org.apache.maven.project.Dependency;
import org.apache.maven.project.Project;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
/**
* Takes a list of maven projects and determines the overall
* dependency ordering among the project.
*
* @author <a href="mailto:jason@zenplex.com">Jason van Zyl</a>
*
* @version $Id: DependencyResolver.java,v 1.1 2002/12/31 07:01:06 jvanzyl Exp $
*/
public class DependencyResolver
{
/** The dependency graph. */
private DependencyGraph dependencyGraph;
/** List of maven projects to analyse. */
private List projects;
/** Project dependencies. */
private HashMap projectDeps;
/** Flag to indicate whether the graph has been built. */
private boolean graphBuilt;
/**
* Default constructor.
*/
public DependencyResolver()
{
dependencyGraph = new DependencyGraph();
projects = new ArrayList();
projectDeps = new HashMap();
graphBuilt = false;
}
/**
* Clear the project list and set the graph built flag to false.
*/
public void clear()
{
graphBuilt = false;
projects.clear();
}
/**
* These are the fully populated projects that
* are being fed into the reactor.
*
* @param project Project to add to the list.
*/
public void addProject( Project project )
{
projects.add( project );
}
/**
* Set a list of projects to process.
*
* @param projects List of projects.
*/
public void setProjects( List projects )
{
this.projects = projects;
}
/**
* Get the list of projects in dependency sorted order.
*
* @param project The project to use as the head of the graph.
* @return The list of projects.
* @throws Exception If an error occurs while processing the graph.
*/
public List getSortedDependencies( Project project )
throws Exception
{
return getSortedDependencies( project, false );
}
/**
* Get the list of projects in dependency sorted order.
*
* @param project The project to use as the head of the graph.
* @param sourceBuild Indicate we are performing a source build.
* @return The list of projects.
* @throws Exception If an error occurs while processing the graph.
*/
public List getSortedDependencies( Project project, boolean sourceBuild )
throws Exception
{
buildGraph();
List sortedDependencies = dependencyGraph.getSortedDependencies( project );
if ( sourceBuild )
{
return sortedDependencies;
}
return getBinaryDependencies( sortedDependencies );
}
/**
* Get the list of projects in dependency sorted order.
*
* @param sourceBuild Flag to indicate we are performing a source build.
* @return The list of projects.
* @throws Exception If an error occurs while processing the graph.
*/
public List getSortedDependencies( boolean sourceBuild )
throws Exception
{
buildGraph();
List sortedDependencies = dependencyGraph.getSortedDependencies();
if ( sourceBuild )
{
return sortedDependencies;
}
return getBinaryDependencies( sortedDependencies );
}
/**
* Get dependency graph for a build based on binary inputs.
*
* @param sortedDependencies List of projects that have been dependency sorted.
* @return The list of projects.
*/
private List getBinaryDependencies( List sortedDependencies )
{
HashMap idMap = new HashMap();
for ( Iterator i = projects.iterator(); i.hasNext(); )
{
Project p = (Project) i.next();
idMap.put( p.getId(), p );
}
List binaryDeps = new ArrayList();
for ( Iterator i = sortedDependencies.iterator(); i.hasNext(); )
{
Project p = (Project) i.next();
Project dep = (Project) idMap.get( p.getId() );
if ( dep != null )
{
binaryDeps.add( dep );
}
}
return binaryDeps;
}
/**
* Build the dependency graph.
*/
private void buildGraph()
{
if ( graphBuilt )
{
return;
}
for ( Iterator i = projects.iterator(); i.hasNext(); )
{
Project p = (Project) i.next();
ArrayList dependencies = new ArrayList();
for ( Iterator j = p.getDependencies().iterator(); j.hasNext(); )
{
Dependency d = (Dependency) j.next();
Project dp = new Project();
dp.setId( d.getRealId() );
dp.setCurrentVersion( d.getVersion() );
dependencies.add( dp );
}
dependencyGraph.addDependencies( p, dependencies );
}
graphBuilt = true;
}
}