Added busy and immutable management to delete

import org.springframework.transaction.annotation.EnableTransactionManagement;

import org.springframework.transaction.annotation.Isolation;

import it.inaf.ia2.aa.data.User;

import it.inaf.oats.vospace.exception.InternalFaultException;

import it.inaf.oats.vospace.exception.NodeBusyException;

import org.springframework.transaction.annotation.Transactional;

/**

 *

 * @author Nicola Fulvio Calabria <nicola.calabria at inaf.it>

 */

@Service

@EnableTransactionManagement

public class DeleteNodeService {

            throw PermissionDeniedException.forPath(path);

        }

        Long nodeId = nodeDao.getNodeId(path).get();

        if (nodeDao.isBranchBusy(nodeId)) {

            throw new NodeBusyException(path);

        }

        if (nodeDao.isBranchImmutable(nodeId)) {

            throw new InternalFaultException("Target branch contains immutable nodes");

        }

        nodeDao.deleteNode(path);

    }

                Node mynode = nodeDao.listNode(tmpPath)

                        .orElseThrow(() -> new NodeNotFoundException(tmpPath));

                if (mynode.getType().equals("vos:LinkNode") && i < pathComponents.size() - 1) // a LinkNode leaf can be deleted

                {

                    throw new LinkFoundException(tmpPath);

                }

            }