package org.eclipse.uml2.diagram.component.edit.policies;

import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.CompoundCommand;
import org.eclipse.gmf.runtime.emf.type.core.commands.DestroyElementCommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientReferenceRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
import org.eclipse.uml2.diagram.component.edit.commands.AssemblyConnectorEndRoleCreateCommand;
import org.eclipse.uml2.diagram.component.edit.commands.AssemblyConnectorEndRoleReorientCommand;
import org.eclipse.uml2.diagram.component.edit.commands.ConnectorCreateCommand;
import org.eclipse.uml2.diagram.component.edit.commands.ConnectorReorientCommand;
import org.eclipse.uml2.diagram.component.edit.commands.DependencyCreateCommand;
import org.eclipse.uml2.diagram.component.edit.commands.DependencyReorientCommand;
import org.eclipse.uml2.diagram.component.edit.commands.PortProvidedCreateCommand;
import org.eclipse.uml2.diagram.component.edit.commands.PortProvidedReorientCommand;
import org.eclipse.uml2.diagram.component.edit.commands.PortRequiredCreateCommand;
import org.eclipse.uml2.diagram.component.edit.commands.PortRequiredReorientCommand;
import org.eclipse.uml2.diagram.component.edit.parts.AssemblyConnectorEndRoleEditPart;
import org.eclipse.uml2.diagram.component.edit.parts.ConnectorEditPart;
import org.eclipse.uml2.diagram.component.edit.parts.DependencyEditPart;
import org.eclipse.uml2.diagram.component.edit.parts.PortProvidedEditPart;
import org.eclipse.uml2.diagram.component.edit.parts.PortRequiredEditPart;
import org.eclipse.uml2.diagram.component.providers.UMLElementTypes;

/**
 * @generated
 */
public class PortOnClassItemSemanticEditPolicy extends UMLBaseItemSemanticEditPolicy {

	/**
	 * @generated
	 */
	protected Command getDestroyElementCommand(DestroyElementRequest req) {
		CompoundCommand cc = getDestroyEdgesCommand();
		addDestroyShortcutsCommand(cc);
		cc.add(getGEFWrapper(new DestroyElementCommand(req)));
		return cc.unwrap();
	}

	/**
	 * @generated
	 */
	protected Command getCreateRelationshipCommand(CreateRelationshipRequest req) {
		Command command = req.getTarget() == null ? getStartCreateRelationshipCommand(req) : getCompleteCreateRelationshipCommand(req);
		return command != null ? command : super.getCreateRelationshipCommand(req);
	}

	/**
	 * @generated
	 */
	protected Command getStartCreateRelationshipCommand(CreateRelationshipRequest req) {
		if (UMLElementTypes.PortProvided_4006 == req.getElementType()) {
			return getGEFWrapper(new PortProvidedCreateCommand(req, req.getSource(), req.getTarget()));
		}
		if (UMLElementTypes.PortRequired_4004 == req.getElementType()) {
			return getGEFWrapper(new PortRequiredCreateCommand(req, req.getSource(), req.getTarget()));
		}
		if (UMLElementTypes.Connector_4008 == req.getElementType()) {
			return getGEFWrapper(new ConnectorCreateCommand(req, req.getSource(), req.getTarget()));
		}
		if (UMLElementTypes.Dependency_4009 == req.getElementType()) {
			return getGEFWrapper(new DependencyCreateCommand(req, req.getSource(), req.getTarget()));
		}
		if (UMLElementTypes.ConnectorEndRole_4010 == req.getElementType()) {
			return getGEFWrapper(new AssemblyConnectorEndRoleCreateCommand(req, req.getTarget(), req.getSource()));
		}
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getCompleteCreateRelationshipCommand(CreateRelationshipRequest req) {
		if (UMLElementTypes.PortProvided_4006 == req.getElementType()) {
			return null;
		}
		if (UMLElementTypes.PortRequired_4004 == req.getElementType()) {
			return null;
		}
		if (UMLElementTypes.Connector_4008 == req.getElementType()) {
			return getGEFWrapper(new ConnectorCreateCommand(req, req.getSource(), req.getTarget()));
		}
		if (UMLElementTypes.Dependency_4009 == req.getElementType()) {
			return getGEFWrapper(new DependencyCreateCommand(req, req.getSource(), req.getTarget()));
		}
		if (UMLElementTypes.ConnectorEndRole_4010 == req.getElementType()) {
			return getGEFWrapper(new AssemblyConnectorEndRoleCreateCommand(req, req.getSource(), req.getTarget()));
		}
		return null;
	}

	/**
	 * Returns command to reorient EClass based link. New link target or source
	 * should be the domain model element associated with this node.
	 * 
	 * @generated
	 */
	protected Command getReorientRelationshipCommand(ReorientRelationshipRequest req) {
		switch (getVisualID(req)) {
		case ConnectorEditPart.VISUAL_ID:
			return getGEFWrapper(new ConnectorReorientCommand(req));
		case DependencyEditPart.VISUAL_ID:
			return getGEFWrapper(new DependencyReorientCommand(req));
		}
		return super.getReorientRelationshipCommand(req);
	}

	/**
	 * Returns command to reorient EReference based link. New link target or source
	 * should be the domain model element associated with this node.
	 * 
	 * @generated
	 */
	protected Command getReorientReferenceRelationshipCommand(ReorientReferenceRelationshipRequest req) {
		switch (getVisualID(req)) {
		case PortProvidedEditPart.VISUAL_ID:
			return getGEFWrapper(new PortProvidedReorientCommand(req));
		case PortRequiredEditPart.VISUAL_ID:
			return getGEFWrapper(new PortRequiredReorientCommand(req));
		case AssemblyConnectorEndRoleEditPart.VISUAL_ID:
			return getGEFWrapper(new AssemblyConnectorEndRoleReorientCommand(req));
		}
		return super.getReorientReferenceRelationshipCommand(req);
	}

}