001: /*
002: * $Header: /export/home/cvsroot/MyPersonalizerRepository/MyPersonalizer/Subsystems/Portal/Sources/es/udc/mypersonalizer/portal/model/actions/personalization/ChangeServiceButtonStateAction.java,v 1.1.1.1 2004/03/25 12:08:40 fbellas Exp $
003: * $Revision: 1.1.1.1 $
004: * $Date: 2004/03/25 12:08:40 $
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.portal.model.actions.personalization;
042:
043: import es.udc.mypersonalizer.kernel.model.actions.AbstractAction;
044: import es.udc.mypersonalizer.kernel.model.editors.EditorFactory;
045: import es.udc.mypersonalizer.kernel.model.editors.ServiceButtonsStateEditor;
046: import es.udc.mypersonalizer.kernel.model.repository.interfaces.RepositoryAccessorFactory;
047: import es.udc.mypersonalizer.kernel.model.repository.interfaces.ServiceButtonsState;
048: import es.udc.mypersonalizer.kernel.model.repository.interfaces.ServiceButtonsStateAccessor;
049: import es.udc.mypersonalizer.kernel.util.exceptions.ActionNotAllowedException;
050: import es.udc.mypersonalizer.kernel.util.exceptions.InstanceNotFoundException;
051: import es.udc.mypersonalizer.kernel.util.exceptions.InternalErrorException;
052: import es.udc.mypersonalizer.portal.model.permissions.PermissionCheckerSingleton;
053: import es.udc.mypersonalizer.portal.model.permissions.UserCredentials;
054: import es.udc.mypersonalizer.portal.model.types.personalization.ChangeServiceButtonStateEvent;
055: import java.io.Serializable;
056:
057: /**
058: * This model action changes the state of a button in a given service. It
059: * receives as an event a {@link ChangeServiceButtonStateEvent} object,
060: * containing the name of the button to change, the new state for this button
061: * and the service to which it belongs.<p>
062: *
063: * This change is only performed if the user who triggers the action has
064: * permissions to access the target button.<p>
065: *
066: * It returns the modified {@link ServiceButtonsState} object as result.
067: *
068: * @author Daniel Fernandez
069: * @since 1.0
070: */
071: public class ChangeServiceButtonStateAction extends AbstractAction {
072:
073: public Serializable execute(Serializable event)
074: throws InstanceNotFoundException, InternalErrorException {
075:
076: ChangeServiceButtonStateEvent changeServiceButtonStateEvent = (ChangeServiceButtonStateEvent) event;
077:
078: UserCredentials userCredentials = changeServiceButtonStateEvent
079: .getUserCredentials();
080: Long serviceButtonStateIdentifier = changeServiceButtonStateEvent
081: .getServiceButtonStateIdentifier();
082: String buttonName = changeServiceButtonStateEvent
083: .getButtonName();
084: Integer buttonState = changeServiceButtonStateEvent
085: .getButtonState();
086: String serviceIdentifier = changeServiceButtonStateEvent
087: .getServiceIdentifier();
088:
089: try {
090:
091: /* Accessors */
092: RepositoryAccessorFactory repositoryAccessorFactory = RepositoryAccessorFactory
093: .getInstance();
094:
095: ServiceButtonsStateAccessor serviceButtonsStateAccessor = repositoryAccessorFactory
096: .createServiceButtonsStateAccessor();
097:
098: /* Singletons */
099: PermissionCheckerSingleton permissionCheckerSingleton = PermissionCheckerSingleton
100: .getInstance();
101:
102: EditorFactory editorFactory = EditorFactory.getInstance();
103:
104: /* If the user is authorized, perform the change */
105: if (permissionCheckerSingleton.isServiceButtonAllowed(
106: userCredentials, serviceIdentifier, buttonName)) {
107:
108: ServiceButtonsState serviceButtonsState = serviceButtonsStateAccessor
109: .findServiceButtonsState(serviceButtonStateIdentifier);
110:
111: ServiceButtonsStateEditor serviceButtonsStateEditor = editorFactory
112: .createServiceButtonsStateEditor(serviceButtonsState
113: .getProperty());
114:
115: serviceButtonsStateEditor.setButtonState(buttonName,
116: buttonState);
117:
118: serviceButtonsStateAccessor
119: .updateServiceButtonsState(serviceButtonsState);
120:
121: return serviceButtonsState;
122:
123: } else {
124: throw new ActionNotAllowedException(
125: "User has not access to button " + buttonName
126: + " in service " + serviceIdentifier,
127: ActionNotAllowedException.CHANGE_BUTTON_STATE_ACTION,
128: serviceIdentifier);
129: }
130: } catch (InstanceNotFoundException e) {
131: throw e;
132: } catch (InternalErrorException e) {
133: throw e;
134: } catch (Exception e) {
135: throw new InternalErrorException(e);
136: }
137:
138: }
139:
140: }
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