plugins/org.eclipse.oomph.p2.edit/src/org/eclipse/oomph/p2/provider/P2ItemProviderAdapterFactory.java

/*
 * Copyright (c) 2014 Eike Stepper (Loehne, Germany) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v20.html
 *
 * Contributors:
 *    Eike Stepper - initial API and implementation
 */
package org.eclipse.oomph.p2.provider;

import org.eclipse.oomph.base.Annotation;
import org.eclipse.oomph.base.BasePackage;
import org.eclipse.oomph.base.util.BaseSwitch;
import org.eclipse.oomph.p2.P2Factory;
import org.eclipse.oomph.p2.P2Package;
import org.eclipse.oomph.p2.util.P2AdapterFactory;

import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.Notifier;
import org.eclipse.emf.common.util.ResourceLocator;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.command.CommandParameter;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.provider.ChangeNotifier;
import org.eclipse.emf.edit.provider.ChildCreationExtenderManager;
import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
import org.eclipse.emf.edit.provider.IChangeNotifier;
import org.eclipse.emf.edit.provider.IChildCreationExtender;
import org.eclipse.emf.edit.provider.IDisposable;
import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
import org.eclipse.emf.edit.provider.IItemPropertySource;
import org.eclipse.emf.edit.provider.INotifyChangedListener;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.provider.ITreeItemContentProvider;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

/**
 * This is the factory that is used to provide the interfaces needed to support Viewers.
 * The adapters generated by this factory convert EMF adapter notifications into calls to {@link #fireNotifyChanged fireNotifyChanged}.
 * The adapters also support Eclipse property sheets.
 * Note that most of the adapters are shared among multiple instances.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class P2ItemProviderAdapterFactory extends P2AdapterFactory implements ComposeableAdapterFactory, IChangeNotifier, IDisposable, IChildCreationExtender
{
  /**
   * This keeps track of the root adapter factory that delegates to this adapter factory.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected ComposedAdapterFactory parentAdapterFactory;

  /**
   * This is used to implement {@link org.eclipse.emf.edit.provider.IChangeNotifier}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected IChangeNotifier changeNotifier = new ChangeNotifier();

  /**
   * This helps manage the child creation extenders.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected ChildCreationExtenderManager childCreationExtenderManager = new ChildCreationExtenderManager(P2EditPlugin.INSTANCE, P2Package.eNS_URI);

  /**
   * This keeps track of all the supported types checked by {@link #isFactoryForType isFactoryForType}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected Collection<Object> supportedTypes = new ArrayList<>();

  /**
   * This constructs an instance.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public P2ItemProviderAdapterFactory()
  {
    supportedTypes.add(IEditingDomainItemProvider.class);
    supportedTypes.add(IStructuredItemContentProvider.class);
    supportedTypes.add(ITreeItemContentProvider.class);
    supportedTypes.add(IItemLabelProvider.class);
    supportedTypes.add(IItemPropertySource.class);
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.oomph.p2.ProfileDefinition} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected ProfileDefinitionItemProvider profileDefinitionItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.oomph.p2.ProfileDefinition}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createProfileDefinitionAdapter()
  {
    if (profileDefinitionItemProvider == null)
    {
      profileDefinitionItemProvider = new ProfileDefinitionItemProvider(this);
    }

    return profileDefinitionItemProvider;
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.oomph.p2.Configuration} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected ConfigurationItemProvider configurationItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.oomph.p2.Configuration}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createConfigurationAdapter()
  {
    if (configurationItemProvider == null)
    {
      configurationItemProvider = new ConfigurationItemProvider(this);
    }

    return configurationItemProvider;
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.oomph.p2.Requirement} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected RequirementItemProvider requirementItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.oomph.p2.Requirement}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createRequirementAdapter()
  {
    if (requirementItemProvider == null)
    {
      requirementItemProvider = new RequirementItemProvider(this);
    }

    return requirementItemProvider;
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.oomph.p2.RepositoryList} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected RepositoryListItemProvider repositoryListItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.oomph.p2.RepositoryList}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createRepositoryListAdapter()
  {
    if (repositoryListItemProvider == null)
    {
      repositoryListItemProvider = new RepositoryListItemProvider(this);
    }

    return repositoryListItemProvider;
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.oomph.p2.Repository} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected RepositoryItemProvider repositoryItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.oomph.p2.Repository}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createRepositoryAdapter()
  {
    if (repositoryItemProvider == null)
    {
      repositoryItemProvider = new RepositoryItemProvider(this);
    }

    return repositoryItemProvider;
  }

  /**
   * This returns the root adapter factory that contains this factory.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public ComposeableAdapterFactory getRootAdapterFactory()
  {
    return parentAdapterFactory == null ? this : parentAdapterFactory.getRootAdapterFactory();
  }

  /**
   * This sets the composed adapter factory that contains this factory.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void setParentAdapterFactory(ComposedAdapterFactory parentAdapterFactory)
  {
    this.parentAdapterFactory = parentAdapterFactory;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public boolean isFactoryForType(Object type)
  {
    return supportedTypes.contains(type) || super.isFactoryForType(type);
  }

  /**
   * This implementation substitutes the factory itself as the key for the adapter.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter adapt(Notifier notifier, Object type)
  {
    return super.adapt(notifier, this);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Object adapt(Object object, Object type)
  {
    if (isFactoryForType(type))
    {
      Object adapter = super.adapt(object, type);
      if (!(type instanceof Class<?>) || ((Class<?>)type).isInstance(adapter))
      {
        return adapter;
      }
    }

    return null;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public List<IChildCreationExtender> getChildCreationExtenders()
  {
    return childCreationExtenderManager.getChildCreationExtenders();
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Collection<?> getNewChildDescriptors(Object object, EditingDomain editingDomain)
  {
    return childCreationExtenderManager.getNewChildDescriptors(object, editingDomain);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public ResourceLocator getResourceLocator()
  {
    return childCreationExtenderManager;
  }

  /**
   * This adds a listener.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void addListener(INotifyChangedListener notifyChangedListener)
  {
    changeNotifier.addListener(notifyChangedListener);
  }

  /**
   * This removes a listener.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void removeListener(INotifyChangedListener notifyChangedListener)
  {
    changeNotifier.removeListener(notifyChangedListener);
  }

  /**
   * This delegates to {@link #changeNotifier} and to {@link #parentAdapterFactory}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void fireNotifyChanged(Notification notification)
  {
    changeNotifier.fireNotifyChanged(notification);

    if (parentAdapterFactory != null)
    {
      parentAdapterFactory.fireNotifyChanged(notification);
    }
  }

  /**
   * This disposes all of the item providers created by this factory.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void dispose()
  {
    if (profileDefinitionItemProvider != null)
    {
      profileDefinitionItemProvider.dispose();
    }
    if (configurationItemProvider != null)
    {
      configurationItemProvider.dispose();
    }
    if (requirementItemProvider != null)
    {
      requirementItemProvider.dispose();
    }
    if (repositoryListItemProvider != null)
    {
      repositoryListItemProvider.dispose();
    }
    if (repositoryItemProvider != null)
    {
      repositoryItemProvider.dispose();
    }
  }

  /**
   * A child creation extender for the {@link BasePackage}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public static class BaseChildCreationExtender implements IChildCreationExtender
  {
    /**
     * The switch for creating child descriptors specific to each extended class.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    protected static class CreationSwitch extends BaseSwitch<Object>
    {
      /**
       * The child descriptors being populated.
       * <!-- begin-user-doc -->
       * <!-- end-user-doc -->
       * @generated
       */
      protected List<Object> newChildDescriptors;

      /**
       * The domain in which to create the children.
       * <!-- begin-user-doc -->
       * <!-- end-user-doc -->
       * @generated
       */
      protected EditingDomain editingDomain;

      /**
       * Creates the a switch for populating child descriptors in the given domain.
       * <!-- begin-user-doc -->
       * <!-- end-user-doc -->
       * @generated
       */
      CreationSwitch(List<Object> newChildDescriptors, EditingDomain editingDomain)
      {
        this.newChildDescriptors = newChildDescriptors;
        this.editingDomain = editingDomain;
      }

      /**
       * <!-- begin-user-doc -->
       * <!-- end-user-doc -->
       * @generated
       */
      @Override
      public Object caseAnnotation(Annotation object)
      {
        newChildDescriptors.add(createChildParameter(BasePackage.Literals.ANNOTATION__CONTENTS, P2Factory.eINSTANCE.createProfileDefinition()));

        newChildDescriptors.add(createChildParameter(BasePackage.Literals.ANNOTATION__CONTENTS, P2Factory.eINSTANCE.createConfiguration()));

        newChildDescriptors.add(createChildParameter(BasePackage.Literals.ANNOTATION__CONTENTS, P2Factory.eINSTANCE.createRequirement()));

        newChildDescriptors.add(createChildParameter(BasePackage.Literals.ANNOTATION__CONTENTS, P2Factory.eINSTANCE.createRepositoryList()));

        newChildDescriptors.add(createChildParameter(BasePackage.Literals.ANNOTATION__CONTENTS, P2Factory.eINSTANCE.createRepository()));

        return null;
      }

      /**
       * <!-- begin-user-doc -->
       * <!-- end-user-doc -->
       * @generated
       */
      protected CommandParameter createChildParameter(Object feature, Object child)
      {
        return new CommandParameter(null, feature, child);
      }

    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    @Override
    public Collection<Object> getNewChildDescriptors(Object object, EditingDomain editingDomain)
    {
      ArrayList<Object> result = new ArrayList<>();
      new CreationSwitch(result, editingDomain).doSwitch((EObject)object);
      return result;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    @Override
    public ResourceLocator getResourceLocator()
    {
      return P2EditPlugin.INSTANCE;
    }
  }

}