/** 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.context.broker.impl.comm;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.societies.api.comm.xmpp.datatypes.Stanza;
import org.societies.api.comm.xmpp.datatypes.StanzaError;
import org.societies.api.comm.xmpp.datatypes.XMPPInfo;
import org.societies.api.comm.xmpp.exceptions.XMPPError;
import org.societies.api.comm.xmpp.interfaces.ICommCallback;
import org.societies.api.context.CtxException;
import org.societies.api.context.broker.CtxAccessControlException;
import org.societies.api.context.model.CtxAssociation;
import org.societies.api.context.model.CtxAttribute;
import org.societies.api.context.model.CtxEntity;
import org.societies.api.context.model.CtxEntityIdentifier;
import org.societies.api.context.model.CtxIdentifier;
import org.societies.api.context.model.CtxModelBeanTranslator;
import org.societies.api.context.model.CtxModelObject;
import org.societies.api.schema.context.contextmanagement.CtxBrokerResponseBean;
import org.societies.api.schema.context.model.CtxAssociationBean;
import org.societies.api.schema.context.model.CtxAttributeBean;
import org.societies.api.schema.context.model.CtxEntityBean;
import org.societies.api.schema.context.model.CtxEntityIdentifierBean;
import org.societies.api.schema.context.model.CtxIdentifierBean;
import org.societies.api.schema.context.model.CtxModelObjectBean;
import org.societies.context.broker.api.CtxBrokerException;
public class CtxBrokerCommCallback implements ICommCallback {
private static final Logger LOG = LoggerFactory.getLogger(CtxBrokerCommCallback.class);
private final static List<String> NAMESPACES = Collections.emptyList();
// Arrays.asList(
// "http://societies.org/api/schema/identity",
// "http://societies.org/api/schema/context/model",
// "http://societies.org/api/schema/context/contextmanagement");
private static final List<String> PACKAGES = Collections.emptyList();
// Arrays.asList(
// "org.societies.api.schema.identity",
// "org.societies.api.schema.context.model",
// "org.societies.api.schema.context.contextmanagement");
//MAP TO STORE ALL THE CLIENT CONNECTIONS
private final Map<String, ICtxCallback> ctxClients = new ConcurrentHashMap<String, ICtxCallback>();
/*
* @see org.societies.api.comm.xmpp.interfaces.ICommCallback#receiveResult(org.societies.api.comm.xmpp.datatypes.Stanza, java.lang.Object)
*/
@Override
public void receiveResult(Stanza returnStanza, Object msgBean) {
//CHECK WHICH END SERVICE IS SENDING THE MESSAGE
LOG.debug("receiveResult: stanza={}, msgBean={}", returnStanza, msgBean);
final ICtxCallback callbackClient = this.getRequestingClient(returnStanza.getId());
if (callbackClient == null) {
LOG.error("Could not handle result bean: No callback client found for stanza with id: "
+ returnStanza.getId());
return;
}
if (!(msgBean instanceof CtxBrokerResponseBean)) {
callbackClient.onException(new CtxBrokerException(
"Could not handle result bean: Unexpected type: "
+ ((msgBean != null) ? msgBean.getClass() : "null")));
return;
}
final CtxBrokerResponseBean payload = (CtxBrokerResponseBean) msgBean;
LOG.debug("receiveResult: method={}", payload.getMethod());
try {
switch (payload.getMethod()) {
case CREATE_ENTITY:
if (payload.getCreateEntityBeanResult() == null) {
callbackClient.onException(new CtxBrokerException(
"Could not handle result bean: CtxBrokerResponseBean.getCreateEntityBeanResult() is null"));
return;
}
final CtxEntityBean entityBean = payload.getCreateEntityBeanResult();
final CtxEntity entity = CtxModelBeanTranslator.getInstance().fromCtxEntityBean(entityBean);
callbackClient.onCreatedEntity(entity);
break;
case CREATE_ATTRIBUTE:
if (payload.getCreateAttributeBeanResult() == null) {
callbackClient.onException(new CtxBrokerException(
"Could not handle result bean: CtxBrokerResponseBean.getCreateAttributeBeanResult() is null"));
return;
}
final CtxAttributeBean attrBean = payload.getCreateAttributeBeanResult();
final CtxAttribute attr = CtxModelBeanTranslator.getInstance().fromCtxAttributeBean(attrBean);
callbackClient.onCreatedAttribute(attr);
break;
case CREATE_ASSOCIATION:
if (payload.getCreateAssociationBeanResult() == null ) {
callbackClient.onException(new CtxBrokerException(
"Could not handle result bean: CtxBrokerResponseBean.getCreateAssociationBeanResult() is null"));
return;
}
final CtxAssociationBean assocBean = payload.getCreateAssociationBeanResult();
final CtxAssociation assoc = CtxModelBeanTranslator.getInstance().fromCtxAssociationBean(assocBean);
callbackClient.onCreatedAssociation(assoc);
break;
case RETRIEVE:
CtxModelObject object = null;
if (payload.getRetrieveBeanResult() != null) {
object = CtxModelBeanTranslator.getInstance()
.fromCtxModelObjectBean(payload.getRetrieveBeanResult());
}
callbackClient.onRetrieveCtx(object);
break;
case UPDATE:
if (payload.getUpdateBeanResult() == null) {
callbackClient.onException(new CtxBrokerException(
"Could not handle result bean: CtxBrokerResponseBean.getUpdateBeanResult() is null"));
return;
}
final CtxModelObjectBean updatedObjectBean = payload.getUpdateBeanResult();
final CtxModelObject updatedObject = CtxModelBeanTranslator.getInstance().fromCtxModelObjectBean(updatedObjectBean);
callbackClient.onUpdateCtx(updatedObject);
break;
case RETRIEVE_INDIVIDUAL_ENTITY_ID:
if (payload.getRetrieveIndividualEntityIdBeanResult() == null) {
callbackClient.onException(new CtxBrokerException(
"Could not handle result bean: CtxBrokerResponseBean.getRetrieveIndividualEntityIdBeanResult() is null"));
return;
}
final CtxEntityIdentifierBean individualEntIdBean =
payload.getRetrieveIndividualEntityIdBeanResult();
final CtxIdentifier individualEntId = CtxModelBeanTranslator.getInstance()
.fromCtxIdentifierBean(individualEntIdBean);
if (individualEntId instanceof CtxEntityIdentifier)
callbackClient.onRetrievedEntityId(
(CtxEntityIdentifier) individualEntId);
else
callbackClient.onException(new CtxBrokerException(
"Returned ctxIdentifier is not a CtxEntityIdentifier"));
break;
case RETRIEVE_COMMUNITY_ENTITY_ID:
CtxEntityIdentifier communityCtxEntId = null;
if (payload.getRetrieveCommunityEntityIdBeanResult() != null) {
final CtxIdentifier ctxId = CtxModelBeanTranslator.getInstance()
.fromCtxIdentifierBean(payload.getRetrieveCommunityEntityIdBeanResult());
if (ctxId instanceof CtxEntityIdentifier) {
communityCtxEntId = (CtxEntityIdentifier) ctxId;
} else {
callbackClient.onException(new CtxBrokerException(
"Returned ctxIdentifier is not a CtxEntityIdentifier"));
}
}
callbackClient.onRetrievedEntityId(communityCtxEntId);
break;
case REMOVE:
CtxModelObject removedObject = null;
if (payload.getRemoveBeanResult() != null) {
removedObject = CtxModelBeanTranslator.getInstance().
fromCtxModelObjectBean(payload.getRemoveBeanResult());
}
callbackClient.onRemovedModelObject(removedObject);
break;
case LOOKUP:
case LOOKUP_BY_SCOPE:
final List<CtxIdentifier> ctxIdList = new ArrayList<CtxIdentifier>();
if (payload.getCtxBrokerLookupBeanResult() != null) {
for (final CtxIdentifierBean ctxIdBean : payload.getCtxBrokerLookupBeanResult()) {
final CtxIdentifier ctxId = CtxModelBeanTranslator.getInstance()
.fromCtxIdentifierBean(ctxIdBean);
ctxIdList.add(ctxId);
}
}
callbackClient.onLookupCallback(ctxIdList);
break;
default:
callbackClient.onException(new CtxBrokerException(
"Could not handle result bean: Unsupported method: " + payload.getMethod()));
}
} catch (Exception e) {
callbackClient.onException(new CtxBrokerException(
"Could not handle result bean " + msgBean + " for method "
+ payload.getMethod() + ": " + e.getLocalizedMessage(), e));
}
}
/*
* @see org.societies.api.comm.xmpp.interfaces.ICommCallback#getXMLNamespaces()
*/
@Override
public List<String> getXMLNamespaces() {
return NAMESPACES;
}
/*
* @see org.societies.api.comm.xmpp.interfaces.ICommCallback#getJavaPackages()
*/
@Override
public List<String> getJavaPackages() {
return PACKAGES;
}
/*
* @see org.societies.api.comm.xmpp.interfaces.ICommCallback#receiveError(org.societies.api.comm.xmpp.datatypes.Stanza, org.societies.api.comm.xmpp.exceptions.XMPPError)
*/
@Override
public void receiveError(Stanza stanza, XMPPError error) {
LOG.debug("Received error: stanza={}, error={}", stanza, error);
if (stanza.getId() == null) {
LOG.error("Received error with null stanza id");
return;
}
final ICtxCallback callbackClient = this.getRequestingClient(stanza.getId());
if (callbackClient == null) {
LOG.error("Received error with stanza id '" + stanza.getId()
+ "' but no matching callback was found");
return;
}
final String message = error.getGenericText();
final CtxException exception;
if (StanzaError.not_authorized.toString().equalsIgnoreCase(error.getStanzaErrorString()))
exception = new CtxAccessControlException(message);
else
exception = new CtxBrokerException(message);
callbackClient.onException(exception);
}
/*
* @see org.societies.api.comm.xmpp.interfaces.ICommCallback#receiveInfo(org.societies.api.comm.xmpp.datatypes.Stanza, java.lang.String, org.societies.api.comm.xmpp.datatypes.XMPPInfo)
*/
@Override
public void receiveInfo(Stanza stanza, String arg1, XMPPInfo info) {
if (LOG.isDebugEnabled())
LOG.debug("Received info: stanza=" + stanza + ", info=" + info);
}
/*
* @see org.societies.api.comm.xmpp.interfaces.ICommCallback#receiveItems(org.societies.api.comm.xmpp.datatypes.Stanza, java.lang.String, java.util.List)
*/
@Override
public void receiveItems(Stanza arg0, String arg1, List<String> arg2) {
// TODO Auto-generated method stub
}
/*
* @see org.societies.api.comm.xmpp.interfaces.ICommCallback#receiveMessage(org.societies.api.comm.xmpp.datatypes.Stanza, java.lang.Object)
*/
@Override
public void receiveMessage(Stanza stanza, Object object) {
if (LOG.isDebugEnabled())
LOG.debug("Received message: stanza=" + stanza + ", object=" + object);
}
void addRequestingClient(String id, ICtxCallback callback) {
this.ctxClients.put(id, callback);
}
private ICtxCallback getRequestingClient(String requestID) {
return this.ctxClients.remove(requestID);
}
}