/** {@inheritDoc} */
@Override
public void addAttributeListener(GridTaskSessionAttributeListener lsnr, boolean rewind) {
A.notNull(lsnr, "lsnr");
Map<Object, Object> attrs = null;
List<GridTaskSessionAttributeListener> lsnrs;
synchronized (mux) {
lsnrs = new ArrayList<GridTaskSessionAttributeListener>(this.lsnrs.size());
lsnrs.addAll(this.lsnrs);
lsnrs.add(lsnr);
lsnrs = Collections.unmodifiableList(lsnrs);
this.lsnrs = lsnrs;
if (rewind) attrs = new HashMap<Object, Object>(this.attrs);
}
if (rewind) {
for (Map.Entry<Object, Object> entry : attrs.entrySet()) {
for (GridTaskSessionAttributeListener l : lsnrs) {
l.onAttributeSet(entry.getKey(), entry.getValue());
}
}
}
}
/** {@inheritDoc} */
@Override
public boolean removeAttributeListener(GridTaskSessionAttributeListener lsnr) {
A.notNull(lsnr, "lsnr");
synchronized (mux) {
List<GridTaskSessionAttributeListener> lsnrs =
new ArrayList<GridTaskSessionAttributeListener>(this.lsnrs);
boolean rmv = lsnrs.remove(lsnr);
this.lsnrs = Collections.unmodifiableList(lsnrs);
return rmv;
}
}