package hudson.model;

import hudson.ExtensionList;
import hudson.ExtensionPoint;
import java.util.ArrayList;
import java.util.List;

/**
 * Extension point for adding transient {@link Action}s to {@link View}s.
 *
 * @since 1.388
 */
public abstract class TransientViewActionFactory implements ExtensionPoint {

    /**
     * returns a list of (transient) actions never null, may be empty
     */
    public abstract List<Action> createFor(View v);

    /**
     * Returns all the registered {@link TransientViewActionFactory}s.
     */
    public static ExtensionList<TransientViewActionFactory> all() {
        return ExtensionList.lookup(TransientViewActionFactory.class);
    }

    /**
     * Creates {@link Action}s for a view, using all registered {@link TransientViewActionFactory}s.
     */
    public static List<Action> createAllFor(View v) {
        List<Action> result = new ArrayList<>();
        for (TransientViewActionFactory f : all()) {
            result.addAll(f.createFor(v));
        }
        return result;
    }

}
