public static Map < String , Collection < String > > splitDeviceEntities ( final Collection < String > entityNames ) { final Map < String , Collection < String > > result = new HashMap < String , Collection < String > > ( ) ; String device ; String entity ; for ( final String entityName : entityNames ) { try { final Entry < String , String > deviceEntity = splitDeviceEntity ( entityName ) ; if ( deviceEntity != null ) { device = deviceEntity . getKey ( ) ; entity = deviceEntity . getValue ( ) ; if ( device != null && entity != null ) { Collection < String > attributes = result . get ( device ) ; if ( attributes == null ) { attributes = new HashSet < String > ( ) ; result . put ( device , attributes ) ; } attributes . add ( entity ) ; } } } catch ( final DevFailed e ) { // nop } } return result ; }
Splits a collection of entity names and group attributes by device .