001: /*
002: * $Header: /export/home/cvsroot/MyPersonalizerRepository/MyPersonalizer/Subsystems/Portal/Sources/es/udc/mypersonalizer/portal/model/actions/mainpage/MainPageAction.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.mainpage;
042:
043: import es.udc.mypersonalizer.kernel.model.actions.AbstractAction;
044: import es.udc.mypersonalizer.kernel.model.repository.interfaces.RepositoryAccessorFactory;
045: import es.udc.mypersonalizer.kernel.model.repository.interfaces.ServiceProperty;
046: import es.udc.mypersonalizer.kernel.model.repository.interfaces.ServicePropertyAccessor;
047: import es.udc.mypersonalizer.kernel.model.repository.interfaces.ServicePropertyKey;
048: import es.udc.mypersonalizer.kernel.util.exceptions.InternalErrorException;
049: import es.udc.mypersonalizer.kernel.util.general.PersonalizationHelper;
050: import es.udc.mypersonalizer.portal.model.types.mainpage.MainPageEvent;
051: import es.udc.mypersonalizer.portal.model.types.mainpage.MainPageResult;
052: import java.io.Serializable;
053: import java.util.*;
054:
055: /**
056: * This model action performs the work needed against the repository by the
057: * controller MainPage action. This consists on retrieving from the repository
058: * the {@link ServiceProperty} objects for the services which reply is not
059: * already cached.<p>
060: *
061: * The event for this action is a {@link MainPageEvent} object, which provides
062: * a list of the desired service property keys.<p>
063: *
064: * For each service visited, it is checked that it is personalizable. If not,
065: * no ServiceProperty is returned for it.<p>
066: *
067: * The result for this action is a {@link MainPageResult} object, which
068: * contains a map with the retrieved service properties.
069: *
070: * @author Daniel Fernandez
071: * @since 1.0
072: */
073: public class MainPageAction extends AbstractAction {
074:
075: public Serializable execute(Serializable event)
076: throws InternalErrorException {
077:
078: MainPageEvent mainPageEvent = (MainPageEvent) event;
079:
080: Collection servicePropertyKeys = mainPageEvent
081: .getServicePropertyKeys();
082:
083: try {
084:
085: /* Accessors */
086: RepositoryAccessorFactory repositoryAccessorFactory = RepositoryAccessorFactory
087: .getInstance();
088:
089: ServicePropertyAccessor servicePropertyAccessor = repositoryAccessorFactory
090: .createServicePropertyAccessor();
091:
092: Map servicePropertiesByKey = new HashMap();
093:
094: Iterator servicePropertyKeysIter = servicePropertyKeys
095: .iterator();
096: while (servicePropertyKeysIter.hasNext()) {
097:
098: ServicePropertyKey servicePropertyKey = (ServicePropertyKey) servicePropertyKeysIter
099: .next();
100:
101: String serviceIdentifier = servicePropertyKey
102: .getServiceIdentifier();
103: /*
104: * This can be a non-personalizable service, and thus have
105: * no ServiceProperty
106: */
107: if (PersonalizationHelper
108: .isPersonalizable(serviceIdentifier)) {
109:
110: ServiceProperty serviceProperty = servicePropertyAccessor
111: .findServiceProperty(servicePropertyKey);
112:
113: servicePropertiesByKey.put(servicePropertyKey,
114: serviceProperty);
115:
116: }
117:
118: }
119:
120: MainPageResult result = new MainPageResult(
121: servicePropertiesByKey);
122:
123: return result;
124:
125: } catch (InternalErrorException e) {
126: throw e;
127: } catch (Exception e) {
128: throw new InternalErrorException(e);
129: }
130:
131: }
132:
133: }
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