ComponentHelpers { public static List<String> extractNames( Collection<? extends AbstractType> types ) { List<String> result = new ArrayList<> (); for( AbstractType t : types ) result.add( t.getName()); return result; } private  ComponentHelpers(); static Component findComponent( Graphs graphs, String name ); static Component findComponent( AbstractApplication app, String name ); static Component findComponentFrom( Component component, String componentName ); static List<String> extractNames( Collection<? extends AbstractType> types ); static boolean isTarget( Component component ); static Collection<Component> findAllChildren( Component component ); static Collection<Component> findAllAncestors( Component component ); static String findComponentInstaller( Component component ); static Map<String,String> findAllExportedVariables( Component component ); static Map<String,String> findAllExportedVariables( AbstractType type ); static Map<String,String> findAllExportedVariables( Graphs graphs ); static Map<String,String> findAllExportedVariables( Facet facet ); static Map<String,ImportedVariable> findAllImportedVariables( Component component ); static Collection<Facet> findAllFacets( Component component ); static List<Component> findAllExtendedComponents( Component component ); static Collection<Facet> findAllExtendedFacets( Facet facet ); static Collection<Facet> findAllExtendingFacets( Facet facet ); static Collection<Component> findAllExtendingComponents( Component component ); static List<Component> findAllComponents( Graphs graphs ); static List<Component> findAllComponents( AbstractApplication app ); static String searchForLoop( Component component ); static String searchForInheritanceCycle( Facet facet ); static String searchForInheritanceCycle( Component component ); static Map<String,Boolean> findComponentDependenciesFor( Component component ); static Map<Component,Boolean> findComponentDependenciesFor( Component component, ApplicationTemplate app ); static Map<Component,Boolean> findComponentsThatDependOn( Component component, ApplicationTemplate app );  }
@Test public void testExtractNames() { List<Component> components = new ArrayList<Component> (); components.add( new Component( "c1" )); components.add( new Component( "c2" )); List<String> names = ComponentHelpers.extractNames( components ); Assert.assertEquals( 2, names.size()); Assert.assertEquals( "c1", names.get( 0 )); Assert.assertEquals( "c2", names.get( 1 )); }