What do you mean by "add default view to this perspective?" You wish to modify the source code to add this view to the Node perspective? Or you wish to add a plugin that will add this view to the perspective using a perspective extension?
To log, you should use the StatusManager
. See http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Fguide%2Fworkbench_statushandling.htm for how to use this properly.