/**
* 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.privacytrust.trust.impl.repo.model;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
import javax.persistence.AttributeOverride;
import javax.persistence.AttributeOverrides;
import javax.persistence.Column;
import javax.persistence.Embedded;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;
import javax.persistence.Transient;
import org.hibernate.annotations.Index;
import org.hibernate.annotations.Type;
import org.societies.api.privacytrust.trust.event.TrustUpdateEvent;
import org.societies.api.privacytrust.trust.model.TrustedEntityId;
import org.societies.privacytrust.trust.api.model.IDirectTrust;
import org.societies.privacytrust.trust.api.model.IIndirectTrust;
import org.societies.privacytrust.trust.api.model.ITrustedEntity;
import org.societies.privacytrust.trust.api.model.IUserPerceivedTrust;
/**
* This abstract class is used to represent an entity trusted by the trustor,
* i.e. the owner of a CSS. Each trusted entity is referenced by its
* {@link TrustedEntityId}, while the associated {@link Trust} objects express
* the trustworthiness of that entity, i.e. direct, indirect and user-perceived
* trust.
*
* @author <a href="mailto:nicolas.liampotis@cn.ntua.gr">Nicolas Liampotis</a> (ICCS)
* @since 0.0.1
*/
@MappedSuperclass
public abstract class TrustedEntity implements ITrustedEntity {
private static final long serialVersionUID = -6065344074845695865L;
/* The surrogate key used by Hibernate. */
@Id
@GeneratedValue
@Column(name = "id")
private long id;
/** The identifier of the trustor. */
@Index(name = "trustor_idx")
@Column(name = "trustor_id", nullable = false, updatable = false, length = 255)
@Type(type = "org.societies.privacytrust.trust.impl.common.hibernate.TrustedEntityIdUserType")
private final TrustedEntityId trustorId;
/** The identifier of the trustee. */
@Index(name = "trustee_idx")
@Column(name = "trustee_id", nullable = false, updatable = false, length = 255)
@Type(type = "org.societies.privacytrust.trust.impl.common.hibernate.TrustedEntityIdUserType")
private final TrustedEntityId trusteeId;
/** The direct trust in this entity. */
@Embedded
@AttributeOverrides({
@AttributeOverride(name = "value", column = @Column(name = "direct_trust_value")),
@AttributeOverride(name = "lastModified", column = @Column(name = "direct_trust_last_modified")),
@AttributeOverride(name = "lastUpdated", column = @Column(name = "direct_trust_last_updated"))
})
private DirectTrust directTrust = new DirectTrust();
/** The indirect trust in this entity. */
@Embedded
@AttributeOverrides({
@AttributeOverride(name = "value", column = @Column(name = "indirect_trust_value")),
@AttributeOverride(name = "lastModified", column = @Column(name = "indirect_trust_last_modified")),
@AttributeOverride(name = "lastUpdated", column = @Column(name = "indirect_trust_last_updated"))
})
private IndirectTrust indirectTrust = new IndirectTrust();
/** The user-perceived trust in this entity. */
@Embedded
@AttributeOverrides({
@AttributeOverride(name = "value", column = @Column(name = "user_perceived_trust_value")),
@AttributeOverride(name = "lastModified", column = @Column(name = "user_perceived_trust_last_modified")),
@AttributeOverride(name = "lastUpdated", column = @Column(name = "user_perceived_trust_last_updated"))
})
private UserPerceivedTrust userPerceivedTrust = new UserPerceivedTrust();
/** The {@link TrustUpdateEvent trust update events} associated with this entity. */
@Transient
final private Queue<TrustUpdateEvent> updateEventQueue = new ConcurrentLinkedQueue<TrustUpdateEvent>();
/**
* Constructs a <code>TrustedEntity</code> with the specified trustor and
* trustee identifiers.
*
* @param trusteeId
* @param trustorId
*/
TrustedEntity(final TrustedEntityId trustorId, final TrustedEntityId trusteeId) {
this.trustorId = trustorId;
this.trusteeId = trusteeId;
}
/*
* @see org.societies.privacytrust.trust.api.model.ITrustedEntity#getTrustorId()
*/
@Override
public TrustedEntityId getTrustorId() {
return this.trustorId;
}
/*
* @see org.societies.privacytrust.trust.api.model.ITrustedEntity#getTrusteeId()
*/
@Override
public TrustedEntityId getTrusteeId() {
return this.trusteeId;
}
/*
* @see org.societies.privacytrust.trust.api.model.ITrustedEntity#getDirectTrust()
*/
@Override
public IDirectTrust getDirectTrust() {
// ugly hack - see https://issues.jboss.org/browse/HIBERNATE-50
if (this.directTrust == null) this.directTrust = new DirectTrust();
return this.directTrust;
}
/*
* @see org.societies.privacytrust.trust.api.model.ITrustedEntity#getIndirectTrust()
*/
@Override
public IIndirectTrust getIndirectTrust() {
// ugly hack - see https://issues.jboss.org/browse/HIBERNATE-50
if (this.indirectTrust == null) this.indirectTrust = new IndirectTrust();
return this.indirectTrust;
}
/*
* @see org.societies.privacytrust.trust.api.model.ITrustedEntity#getUserPerceivedTrust()
*/
@Override
public IUserPerceivedTrust getUserPerceivedTrust() {
// ugly hack - see https://issues.jboss.org/browse/HIBERNATE-50
if (this.userPerceivedTrust == null) this.userPerceivedTrust = new UserPerceivedTrust();
return this.userPerceivedTrust;
}
/**
* Returns the {@link TrustUpdateEvent trust update events} associated with
* this entity.
*
* @since 1.0
*/
public Queue<TrustUpdateEvent> getUpdateEventQueue() {
return this.updateEventQueue;
}
/*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((this.trustorId == null) ? 0 : this.trustorId.hashCode());
result = prime * result
+ ((this.trusteeId == null) ? 0 : this.trusteeId.hashCode());
return result;
}
/*
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object that) {
if (this == that)
return true;
if (that == null)
return false;
if (this.getClass() != that.getClass())
return false;
TrustedEntity other = (TrustedEntity) that;
if (this.trustorId == null) {
if (other.trustorId != null)
return false;
} else if (!this.trustorId.equals(other.trustorId))
return false;
if (this.trusteeId == null) {
if (other.trusteeId != null)
return false;
} else if (!this.trusteeId.equals(other.trusteeId))
return false;
return true;
}
/*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append("(");
sb.append("trustorId=" + this.trustorId);
sb.append(",");
sb.append("trusteeId=" + this.trusteeId);
sb.append(",");
sb.append("directTrust=" + this.directTrust);
sb.append(",");
sb.append("indirectTrust=" + this.indirectTrust);
sb.append(",");
sb.append("userPerceivedTrust=" + this.userPerceivedTrust);
sb.append(")");
return sb.toString();
}
}