001: /*
002: * $Header: /export/home/cvsroot/MyPersonalizerRepository/MyPersonalizer/Subsystems/Admin/Sources/es/udc/mypersonalizer/admin/model/actions/serviceperms/UpdateServicePermissionsAction.java,v 1.1.1.1 2004/03/25 12:08:39 fbellas Exp $
003: * $Revision: 1.1.1.1 $
004: * $Date: 2004/03/25 12:08:39 $
005: *
006: * =============================================================================
007: *
008: * Copyright (c) 2003, The MyPersonalizer Development Group
009: * (http://www.tic.udc.es/~fbellas/mypersonalizer/index.html) at
010: * University Of A Coruna
011: * All rights reserved.
012: *
013: * Redistribution and use in source and binary forms, with or without
014: * modification, are permitted provided that the following conditions are met:
015: *
016: * - Redistributions of source code must retain the above copyright notice,
017: * this list of conditions and the following disclaimer.
018: *
019: * - Redistributions in binary form must reproduce the above copyright notice,
020: * this list of conditions and the following disclaimer in the documentation
021: * and/or other materials provided with the distribution.
022: *
023: * - Neither the name of the University Of A Coruna nor the names of its
024: * contributors may be used to endorse or promote products derived from
025: * this software without specific prior written permission.
026: *
027: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
028: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
029: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
030: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
031: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
032: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
033: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
034: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
035: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
036: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
037: * POSSIBILITY OF SUCH DAMAGE.
038: *
039: */
040:
041: package es.udc.mypersonalizer.admin.model.actions.serviceperms;
042:
043: import java.io.Serializable;
044:
045: import es.udc.mypersonalizer.kernel.model.repository.interfaces.RepositoryAccessorFactory;
046: import es.udc.mypersonalizer.kernel.model.repository.interfaces.ServicePermissions;
047: import es.udc.mypersonalizer.kernel.model.repository.interfaces.ServicePermissionsAccessor;
048: import es.udc.mypersonalizer.kernel.model.actions.AbstractAction;
049: import es.udc.mypersonalizer.kernel.util.exceptions.InternalErrorException;
050: import es.udc.mypersonalizer.kernel.util.exceptions.InstanceNotFoundException;
051: import es.udc.mypersonalizer.kernel.util.exceptions.DuplicateInstanceException;
052:
053: /**
054: * Model action for updating the permissions of a service in the database.
055: *
056: * @author Abel Iago Toral Quiroga
057: * @since 1.0
058: */
059: public class UpdateServicePermissionsAction extends AbstractAction {
060:
061: /**
062: * Updates the permissions associated to a service in database using
063: * <code>ServicePermissionsAccessor</code>. If the permissions for the
064: * service do not exist, then they will be created.
065: * @param event is of class {@link ServicePermissions} and represents
066: * the updated permissions for a service.
067: * @return always null.
068: */
069: public Serializable execute(Serializable event)
070: throws InternalErrorException {
071:
072: ServicePermissions servicePermissions = (ServicePermissions) event;
073:
074: try {
075: ServicePermissionsAccessor servicePermissionsAccessor = RepositoryAccessorFactory
076: .getInstance().createServicePermissionsAccessor();
077:
078: boolean hasPermissions = true;
079: try {
080: servicePermissionsAccessor
081: .findServicePermissions(servicePermissions
082: .getServiceIdentifier());
083: } catch (InstanceNotFoundException e) {
084: hasPermissions = false;
085: }
086:
087: /* We add the permissions if no permissions are already assigned
088: * to the service, else we update them.
089: */
090:
091: if (!hasPermissions) {
092: servicePermissionsAccessor
093: .addServicePermissions(servicePermissions);
094: } else {
095: servicePermissionsAccessor
096: .updateServicePermissions(servicePermissions);
097: }
098:
099: return null;
100:
101: } catch (InstanceNotFoundException e) {
102: throw new InternalErrorException(e);
103: } catch (DuplicateInstanceException e) {
104: throw new InternalErrorException(e);
105: }
106: }
107: }
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