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/*
* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
*
* Distributable under LGPL license. See terms of license at gnu.org.
*/
package net.java.sip.communicator.service.protocol;
import java.util.*;
import net.java.sip.communicator.service.protocol.ServerStoredDetails.*;
import net.java.sip.communicator.service.protocol.event.*;
import net.java.sip.communicator.util.Logger;
/**
* Represents a default implementation of {@link OperationSetAvatar} in order to
* make it easier for implementers to provide complete solutions while focusing
* on implementation-specific details.
*
* @author Damien Roth
*/
public abstract class AbstractOperationSetAvatar<T extends ProtocolProviderService>
implements OperationSetAvatar
{
/**
* The <tt>Logger</tt> used by the <tt>AbstractOperationSetAvatar</tt> class
* and its instances for logging output.
*/
private static final Logger logger
= Logger.getLogger(AbstractOperationSetAvatar.class);
/**
* The maximum avatar width. Zero mean no maximum
*/
private final int maxWidth;
/**
* The maximum avatar height. Zero mean no maximum
*/
private final int maxHeight;
/**
* The maximum avatar size. Zero mean no maximum
*/
private final int maxSize;
/**
* The provider that created us.
*/
private final T parentProvider;
private final OperationSetServerStoredAccountInfo accountInfoOpSet;
/**
* The list of listeners interested in <tt>AvatarEvent</tt>s.
*/
private final List<AvatarListener> avatarListeners
= new ArrayList<AvatarListener>();
protected AbstractOperationSetAvatar(T parentProvider,
OperationSetServerStoredAccountInfo accountInfoOpSet, int maxWidth,
int maxHeight, int maxSize)
{
this.parentProvider = parentProvider;
this.accountInfoOpSet = accountInfoOpSet;
this.maxWidth = maxWidth;
this.maxHeight = maxHeight;
this.maxSize = maxSize;
}
public int getMaxWidth()
{
return this.maxWidth;
}
public int getMaxHeight()
{
return this.maxHeight;
}
public int getMaxSize()
{
return this.maxSize;
}
public byte[] getAvatar()
{
return AccountInfoUtils.getImage(this.accountInfoOpSet);
}
public void setAvatar(byte[] avatar)
{
ImageDetail oldDetail = null;
ImageDetail newDetail = new ImageDetail("avatar", avatar);
Iterator<GenericDetail> imageDetails = this.accountInfoOpSet
.getDetails(ServerStoredDetails.ImageDetail.class);
if (imageDetails.hasNext())
{
oldDetail = (ImageDetail) imageDetails.next();
}
try
{
if (oldDetail == null)
this.accountInfoOpSet.addDetail(newDetail);
else
this.accountInfoOpSet.replaceDetail(oldDetail, newDetail);
} catch (OperationFailedException e)
{
logger.warn("Unable to set new avatar", e);
}
fireAvatarChanged(avatar);
}
public void addAvatarListener(AvatarListener listener)
{
synchronized (this.avatarListeners)
{
if (!this.avatarListeners.contains(listener))
this.avatarListeners.add(listener);
}
}
public void removeAvatarListener(AvatarListener listener)
{
synchronized (this.avatarListeners)
{
if (this.avatarListeners.contains(listener))
this.avatarListeners.remove(listener);
}
}
/**
* Notifies all registered listeners of the new event.
*
* @param newAvatar
* the new avatar
*/
protected void fireAvatarChanged(byte[] newAvatar)
{
Collection<AvatarListener> listeners;
synchronized (this.avatarListeners)
{
listeners = new ArrayList<AvatarListener>(this.avatarListeners);
}
if (!listeners.isEmpty())
{
AvatarEvent event
= new AvatarEvent(this, this.parentProvider, newAvatar);
for (AvatarListener l : listeners)
l.avatarChanged(event);
}
}
}
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