ListenerProviderExtension.java example

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perconik-master
package sk.stuba.fiit.perconik.activity.debug.listeners;

import java.util.Set;

import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ImmutableSet.Builder;

import sk.stuba.fiit.perconik.activity.debug.listeners.ui.PageLifecycleListener;
import sk.stuba.fiit.perconik.activity.debug.listeners.ui.PartLifecycleListener;
import sk.stuba.fiit.perconik.activity.debug.listeners.ui.PerspectiveLifecycleListener;
import sk.stuba.fiit.perconik.activity.debug.listeners.ui.WindowLifecycleListener;
import sk.stuba.fiit.perconik.activity.debug.listeners.ui.WorkbenchLifecycleListener;
import sk.stuba.fiit.perconik.core.Listener;
import sk.stuba.fiit.perconik.core.services.listeners.ListenerProvider;
import sk.stuba.fiit.perconik.core.services.listeners.ListenerProviderFactory;
import sk.stuba.fiit.perconik.core.services.listeners.ListenerProviders;

public final class ListenerProviderExtension implements ListenerProviderFactory {
  private static final Set<Class<? extends Listener>> classes;

  static {
    Builder<Class<? extends Listener>> builder = ImmutableSet.builder();

    builder.add(SelfLifecycleListener.class);

    builder.add(WorkbenchLifecycleListener.class);
    builder.add(WindowLifecycleListener.class);
    builder.add(PageLifecycleListener.class);
    builder.add(PartLifecycleListener.class);

    builder.add(PerspectiveLifecycleListener.class);

    classes = builder.build();
  }

  public ListenerProviderExtension() {}

  public ListenerProvider create(final ListenerProvider parent) {
    return ListenerProviders.builder(parent).addAll(classes).build();
  }
}