001: /*
002: * $Header: /export/home/cvsroot/MyPersonalizerRepository/MyPersonalizer/Subsystems/Portal/Sources/es/udc/mypersonalizer/portal/model/wizards/RemovePropertyStructureUpdater.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.wizards;
042:
043: import es.udc.mypersonalizer.kernel.model.properties.Property;
044: import es.udc.mypersonalizer.kernel.model.properties.PropertyStructure;
045: import es.udc.mypersonalizer.kernel.util.exceptions.InternalErrorException;
046: import es.udc.mypersonalizer.portal.model.types.WizardEvent;
047: import java.util.*;
048:
049: /**
050: * This property updater removes a property structure from a property. The
051: * property structure which will be removed is defined by the
052: * <tt>structureName</tt> parameter of the {@link WizardEvent} object received.
053: * <p>
054: * The removal of a property structure inside a multivalued property will cause
055: * the remaining values to fill the gap. This is, if there are 4 values and
056: * the number 1 is removed, number 2 will be moved to 1 and 3 to 2.
057: *
058: *
059: * @author Daniel Fernandez
060: * @since 1.0
061: */
062: public class RemovePropertyStructureUpdater implements PropertyUpdater {
063:
064: /** Creates a new instance of RemovePropertyStructureUpdater */
065: public RemovePropertyStructureUpdater() {
066: }
067:
068: public void update(Property property, WizardEvent event)
069: throws InternalErrorException {
070:
071: Map eventProperties = event.getProperties();
072: String propertyStructureName = event.getPropertyStructureName();
073: String serviceIdentifier = event.getServiceIdentifier();
074:
075: Iterator eventPropertiesIter = eventProperties.entrySet()
076: .iterator();
077:
078: /*
079: * We get the position in the property where we must move to
080: * to perform the operation.
081: */
082: String innerPropertyName = PropertyUpdaterHelper
083: .getPropertyStructurePropertyName(propertyStructureName);
084:
085: if (!innerPropertyName.equals("")) {
086: try {
087: property = property.findProperty(innerPropertyName);
088: } catch (Exception e) {
089: throw new InternalErrorException(e);
090: }
091: }
092:
093: /*
094: * This will be the number of the value which we must remove.
095: */
096: int propertyStructureNumber = PropertyUpdaterHelper
097: .getPropertyStructureNumber(propertyStructureName);
098:
099: List propertyStructures = new ArrayList(Arrays.asList(property
100: .getValuesAsObject()));
101:
102: try {
103: propertyStructures.remove(propertyStructureNumber);
104: } catch (Exception e) {
105: throw new InternalErrorException(e);
106: }
107:
108: PropertyStructure[] newPropertyStructures = (PropertyStructure[]) propertyStructures
109: .toArray(new PropertyStructure[0]);
110:
111: /*
112: * And the property is set again, without the removed values.
113: */
114: property.setValuesAsObject(newPropertyStructures);
115:
116: }
117:
118: }
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