/**
* Copyright (c) 2011, SOCIETIES Consortium (WATERFORD INSTITUTE OF TECHNOLOGY (TSSG), HERIOT-WATT UNIVERSITY (HWU), SOLUTA.NET
* (SN), GERMAN AEROSPACE CENTRE (Deutsches Zentrum fuer Luft- und Raumfahrt e.V.) (DLR), Zavod za varnostne tehnologije
* informacijske družbe in elektronsko poslovanje (SETCCE), INSTITUTE OF COMMUNICATION AND COMPUTER SYSTEMS (ICCS), LAKE
* COMMUNICATIONS (LAKE), INTEL PERFORMANCE LEARNING SOLUTIONS LTD (INTEL), PORTUGAL TELECOM INOVAÇÃO, SA (PTIN), IBM Corp.,
* INSTITUT TELECOM (ITSUD), AMITEC DIACHYTI EFYIA PLIROFORIKI KAI EPIKINONIES ETERIA PERIORISMENIS EFTHINIS (AMITEC), TELECOM
* ITALIA S.p.a.(TI), TRIALOG (TRIALOG), Stiftelsen SINTEF (SINTEF), NEC EUROPE LTD (NEC))
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.societies.api.internal.privacytrust.trust.model;
import java.util.Collections;
import java.util.Date;
import java.util.Set;
import org.societies.api.privacytrust.trust.model.TrustEvidence;
import org.societies.api.privacytrust.trust.model.TrustRelationship;
import org.societies.api.privacytrust.trust.model.TrustValueType;
import org.societies.api.privacytrust.trust.model.TrustedEntityId;
/**
* This class extends {@link TrustRelationship} by including related
* {@link TrustEvidence} information.
*
* @author <a href="mailto:nicolas.liampotis@cn.ntua.gr">Nicolas Liampotis</a> (ICCS)
* @since 1.1
*/
public final class ExtTrustRelationship extends TrustRelationship {
private static final long serialVersionUID = -8456128362369917075L;
/** The trust evidence that were used to evaluate this trust relationship.*/
private final Set<TrustEvidence> trustEvidence;
/**
* Constructs a <code>ExtTrustRelationship</code> with the specified
* attributes.
*
* @param trustorId
* (required) the {@link TrustedEntityIdentifier} of the entity
* (trustor) that assigned the trust value.
* @param trusteeId
* (required) the {@link TrustedEntityIdentifier} of the entity
* (trustee) that the trust value was assigned to.
* @param trustValueType
* (required) the {@link TrustValueType type} of the trust
* value.
* @param trustValue
* (required) the trust value expressing the trustworthiness of
* the identified trustee.
* @param timestamp
* (required) the date and time when the trust value was last
* evaluated.
* @param trustEvidence
* (required) the {@link TrustEvidence} that were used to
* evaluate this trust relationship.
* @throws NullPointerException if any of the specified parameters is
* <code>null</code>
* @throws IllegalArgumentException if the specified trustValue is out of
* range [0,1]
*/
public ExtTrustRelationship(final TrustedEntityId trustorId,
final TrustedEntityId trusteeId,
final TrustValueType trustValueType, final Double trustValue,
final Date timestamp, final Set<TrustEvidence> trustEvidence) {
super(trustorId, trusteeId, trustValueType, trustValue, timestamp);
this.trustEvidence = trustEvidence;
}
/**
* Returns an <i>unmodifiable</i> set containing the {@link TrustEvidence}
* that resulted in this trust relationship.
*
* @return a set containing the {@link TrustEvidence} that resulted in this
* trust relationship.
*/
public Set<TrustEvidence> getTrustEvidence() {
return Collections.unmodifiableSet(this.trustEvidence);
}
/**
* Returns a <code>String</code> representation of this trust relationship.
*
* @return a <code>String</code> representation of this trust relationship.
*/
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append("ExtTrustRelationship (trustorId=");
sb.append(super.getTrustorId());
sb.append(", trusteeId=");
sb.append(super.getTrusteeId());
sb.append(", trustValueType=");
sb.append(super.getTrustValueType());
sb.append(", trustValue=");
sb.append(super.getTrustValue());
sb.append(", timestamp=");
sb.append(super.getTimestamp());
sb.append(", trustEvidence=");
sb.append(this.trustEvidence);
sb.append(")");
return sb.toString();
}
/*
* @see org.societies.api.privacytrust.trust.model.TrustRelationship#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result
+ ((this.trustEvidence == null) ? 0 : this.trustEvidence.hashCode());
return result;
}
/*
* @see org.societies.api.privacytrust.trust.model.TrustRelationship#equals(java.lang.Object)
*/
@Override
public boolean equals(Object that) {
if (this == that)
return true;
if (!super.equals(that))
return false;
if (this.getClass() != that.getClass())
return false;
ExtTrustRelationship other = (ExtTrustRelationship) that;
if (this.trustEvidence == null) {
if (other.trustEvidence != null)
return false;
} else if (!this.trustEvidence.equals(other.trustEvidence))
return false;
return true;
}
}