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/*
* Jitsi, the OpenSource Java VoIP and Instant Messaging client.
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package net.java.sip.communicator.impl.protocol.jabber;
import java.util.*;
import net.java.sip.communicator.service.protocol.*;
import net.java.sip.communicator.service.protocol.ServerStoredDetails.*;
import net.java.sip.communicator.util.*;
/**
* @author Damian Minkov
*/
public class OperationSetServerStoredContactInfoJabberImpl
implements OperationSetServerStoredContactInfo
{
/**
* The logger.
*/
private static final Logger logger =
Logger.getLogger(OperationSetServerStoredContactInfoJabberImpl.class);
private InfoRetreiver infoRetreiver = null;
/**
* If we got several listeners for the same contact lets retrieve once
* but deliver result to all.
*/
private Hashtable<String, List<DetailsResponseListener>>
listenersForDetails =
new Hashtable<String, List<DetailsResponseListener>>();
protected OperationSetServerStoredContactInfoJabberImpl(
InfoRetreiver infoRetreiver)
{
this.infoRetreiver = infoRetreiver;
}
/**
* returns the user details from the specified class or its descendants
* the class is one from the
* net.java.sip.communicator.service.protocol.ServerStoredDetails
* or implemented one in the operation set for the user info
*
* @param contact Contact
* @param detailClass Class
* @return Iterator
*/
public <T extends GenericDetail> Iterator<T> getDetailsAndDescendants(
Contact contact,
Class<T> detailClass)
{
List<GenericDetail> details
= infoRetreiver.getContactDetails(contact.getAddress());
List<T> result = new LinkedList<T>();
if(details == null)
return result.iterator();
for (GenericDetail item : details)
if(detailClass.isInstance(item))
{
@SuppressWarnings("unchecked")
T t = (T) item;
result.add(t);
}
return result.iterator();
}
/**
* returns the user details from the specified class
* exactly that class not its descendants
*
* @param contact Contact
* @param detailClass Class
* @return Iterator
*/
public Iterator<GenericDetail> getDetails(
Contact contact,
Class<? extends GenericDetail> detailClass)
{
List<GenericDetail> details
= infoRetreiver.getContactDetails(contact.getAddress());
List<GenericDetail> result = new LinkedList<GenericDetail>();
if(details == null)
return result.iterator();
for (GenericDetail item : details)
if(detailClass.equals(item.getClass()))
result.add(item);
return result.iterator();
}
/**
* request the full info for the given uin
* waits and return this details
*
* @param contact Contact
* @return Iterator
*/
public Iterator<GenericDetail> getAllDetailsForContact(Contact contact)
{
List<GenericDetail> details
= infoRetreiver.getContactDetails(contact.getAddress());
if(details == null)
return new LinkedList<GenericDetail>().iterator();
else
return new LinkedList<GenericDetail>(details).iterator();
}
/**
* Requests all details existing for the specified contact.
* @param contact the specified contact
* @return a java.util.Iterator over all details existing for the specified
* contact.
*/
public Iterator<GenericDetail> requestAllDetailsForContact(
final Contact contact, DetailsResponseListener listener)
{
List<GenericDetail> res =
infoRetreiver.getCachedContactDetails(contact.getAddress());
if(res != null)
{
return res.iterator();
}
synchronized(listenersForDetails)
{
List<DetailsResponseListener> ls =
listenersForDetails.get(contact.getAddress());
boolean isFirst = false;
if(ls == null)
{
ls = new ArrayList<DetailsResponseListener>();
isFirst = true;
listenersForDetails.put(contact.getAddress(), ls);
}
if(!ls.contains(listener))
ls.add(listener);
// there is already scheduled retrieve, will deliver at listener.
if(!isFirst)
return null;
}
new Thread(new Runnable()
{
public void run()
{
List<GenericDetail> result =
infoRetreiver.retrieveDetails(contact.getAddress());
List<DetailsResponseListener> listeners;
synchronized(listenersForDetails)
{
listeners =
listenersForDetails.remove(contact.getAddress());
}
if(listeners == null || result == null)
return;
for(DetailsResponseListener l : listeners)
{
try
{
l.detailsRetrieved(result.iterator());
}
catch(Throwable t)
{
logger.error(
"Error delivering for retrieved details", t);
}
}
}
}, getClass().getName() + ".RetrieveDetails").start();
// return null as there is no cache and we will try to retrieve
return null;
}
}
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