/**
* 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.example.trust;
import java.util.concurrent.ExecutionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.societies.api.comm.xmpp.interfaces.ICommManager;
import org.societies.api.internal.privacytrust.trust.ITrustBroker;
import org.societies.api.internal.privacytrust.trust.TrustException;
import org.societies.api.internal.privacytrust.trust.event.ITrustUpdateEventListener;
import org.societies.api.internal.privacytrust.trust.event.TrustUpdateEvent;
import org.societies.api.internal.privacytrust.trust.model.TrustedEntityId;
import org.societies.api.internal.privacytrust.trust.model.TrustedEntityType;
import org.societies.privacytrust.trust.api.event.ITrustEventMgr;
import org.societies.privacytrust.trust.api.event.TrustEventTopic;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
/**
* This class provides examples for using the internal Context Broker in OSGi.
*/
@Service
public class TrustClient {
/** The logging facility. */
private static final Logger LOG = LoggerFactory.getLogger(TrustClient.class);
private static final String TRUSTED_CSS_ID = "fooIIdentity.societies.local";
/** The String representation of my IIdentity. */
private final String trustorId;
/** The Internal Context Broker service reference. */
private ITrustBroker trustBroker;
/** The Trust Event Mgr service reference. TODO TEMP */
private ITrustEventMgr trustEventMgr;
@Autowired(required=true)
public TrustClient(ITrustBroker trustBroker, ICommManager commMgr, ITrustEventMgr trustEventMgr) {
LOG.info("*** " + this.getClass() + " instantiated");
this.trustBroker = trustBroker;
this.trustEventMgr = trustEventMgr;
this.trustorId = commMgr.getIdManager().getThisNetworkNode().getBareJid();
LOG.info("*** Starting examples...");
this.retrieveTrust();
this.registerForTrustChanges();
}
/**
* This method demonstrates how to retrieve trust values from the trust repository.
*/
private void retrieveTrust() {
LOG.info("*** retrieveTrust");
try {
Double trustValue = this.trustBroker.retrieveTrust(
new TrustedEntityId(this.trustorId, TrustedEntityType.CSS, TRUSTED_CSS_ID)).get();
LOG.info("*** retrieved trust value = " + trustValue);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ExecutionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (TrustException te) {
LOG.error("Trust Broker sucks: " + te.getLocalizedMessage(), te);
}
}
/**
* This method demonstrates how to register for trust update events in the trust repository.
*/
private void registerForTrustChanges() {
LOG.info("*** registerForTrustChanges");
try {
final TrustedEntityId teid = new TrustedEntityId(this.trustorId, TrustedEntityType.CSS, TRUSTED_CSS_ID);
// 1. Register listener by specifying the context attribute identifier
this.trustBroker.registerTrustUpdateEventListener(new MyTrustUpdateEventListener(),
teid);
// 2. Fire fake TrustUpdateEvent
this.trustEventMgr.postEvent(
new TrustUpdateEvent(teid, 0.05d, 0.8d),
new String[] { TrustEventTopic.USER_PERCEIVED_TRUST_UPDATED },
this.getClass().toString());
} catch (TrustException te) {
LOG.error("Trust Broker sucks: " + te.getLocalizedMessage(), te);
}
}
private class MyTrustUpdateEventListener implements ITrustUpdateEventListener {
/*
* (non-Javadoc)
* @see org.societies.api.internal.privacytrust.trust.event.ITrustUpdateEventListener#onUpdate(org.societies.api.internal.privacytrust.trust.event.TrustUpdateEvent)
*/
@Override
public void onUpdate(TrustUpdateEvent event) {
LOG.info("*** TrustUpdateEvent " + event);
}
}
}