import org.apache.maven.lifecycle.mapping.LifecycleMapping; //导入依赖的package包/类
private Lifecycle getDefaultLifecycle( MavenProject project )
    throws MojoExecutionException
{
    ClassRealm projectRealm = project.getClassRealm();
    if ( projectRealm == null )
        projectRealm = container.getContainerRealm();

    ClassRealm oldLookupRealm = container.setLookupRealm( projectRealm );
    ClassLoader oldContextClassLoader = Thread.currentThread().getContextClassLoader();
    Thread.currentThread().setContextClassLoader( projectRealm );

    try
    {
        return container.lookup( LifecycleMapping.class, project.getPackaging() ).getLifecycles().get( "default" );
    }
    catch ( ComponentLookupException e )
    {
        throw new MojoExecutionException( "Unable to get lifecycle for project " + project.getId(), e );
    }
    finally
    {
        Thread.currentThread().setContextClassLoader( oldContextClassLoader );
        container.setLookupRealm( oldLookupRealm );
    }
}
 

import org.apache.maven.lifecycle.mapping.LifecycleMapping; //导入依赖的package包/类
public List<String> getLifecyclePhases() {

        LifecycleMapping lifecycleMapping = lookupComponent(LifecycleMapping.class);
        if (lifecycleMapping != null) {
            Set<String> phases = new TreeSet<String>();
            Map<String, Lifecycle> lifecycles = lifecycleMapping.getLifecycles();
            for (Lifecycle lifecycle : lifecycles.values()) {
                phases.addAll(lifecycle.getPhases().keySet());
            }
            return new ArrayList<String>(phases);
        }

        return Collections.<String>emptyList();
    }
 

import org.apache.maven.lifecycle.mapping.LifecycleMapping; //导入依赖的package包/类
public Set<Plugin> getPluginsBoundByDefaultToAllLifecycles( String packaging )
{
    if ( logger.isDebugEnabled() )
    {
        logger.debug( "Looking up lifecyle mappings for packaging " + packaging + " from " +
            Thread.currentThread().getContextClassLoader() );
    }

    LifecycleMapping lifecycleMappingForPackaging = lifecycleMappings.get( packaging );

    if ( lifecycleMappingForPackaging == null )
    {
        return null;
    }

    Map<Plugin, Plugin> plugins = new LinkedHashMap<Plugin, Plugin>();

    for ( Lifecycle lifecycle : getOrderedLifecycles() )
    {
        org.apache.maven.lifecycle.mapping.Lifecycle lifecycleConfiguration =
            lifecycleMappingForPackaging.getLifecycles().get( lifecycle.getId() );

        Map<String, String> phaseToGoalMapping = null;

        if ( lifecycleConfiguration != null )
        {
            phaseToGoalMapping = lifecycleConfiguration.getPhases();
        }
        else if ( lifecycle.getDefaultPhases() != null )
        {
            phaseToGoalMapping = lifecycle.getDefaultPhases();
        }

        if ( phaseToGoalMapping != null )
        {
            // These are of the form:
            //
            // compile -> org.apache.maven.plugins:maven-compiler-plugin:compile[,gid:aid:goal,...]
            //
            for ( Map.Entry<String, String> goalsForLifecyclePhase : phaseToGoalMapping.entrySet() )
            {
                String phase = goalsForLifecyclePhase.getKey();
                String goals = goalsForLifecyclePhase.getValue();
                if ( goals != null )
                {
                    parseLifecyclePhaseDefinitions( plugins, phase, goals );
                }
            }
        }
    }

    return plugins.keySet();
}