private AbstractShard getReadMap(byte[] hash) throws IOException {
Lock l = gcLock.readLock();
l.lock();
// long v = ct.incrementAndGet();
try {
if (!runningGC && !lbf.mightContain(hash)) {
// SDFSLogger.getLog().info("not in bloom filter");
return null;
}
} finally {
l.unlock();
}
Iterator<ProgressiveFileByteArrayLongMap> iter = activeReadMaps.iterator();
while (iter.hasNext()) {
ProgressiveFileByteArrayLongMap _m = iter.next();
if (_m.containsKey(hash)) return _m;
}
iter = maps.iterator();
while (iter.hasNext()) {
ProgressiveFileByteArrayLongMap _m = iter.next();
if (!activeReadMaps.contains(_m) && _m.containsKey(hash)) {
al.lock();
try {
// SDFSLogger.getLog().info("adding active " +
// _m.toString());
if (activeReadMaps.remainingCapacity() == 0) {
ProgressiveFileByteArrayLongMap obf = activeReadMaps.poll();
// SDFSLogger.getLog().info("removed active " +
// obf.toString());
if (obf != null) obf.stopRun();
}
/*
* if(activeReadMaps.offer(_m))
* SDFSLogger.getLog().info("added active " +
* _m.toString()); else
* SDFSLogger.getLog().info("unable to add active " +
* _m.toString());
*/
try {
loadCacheExecutor.execute(_m);
} catch (Exception e) {
if (SDFSLogger.isDebug()) SDFSLogger.getLog().debug("unable to cache " + _m, e);
}
} finally {
al.unlock();
}
return _m;
}
}
/*
if(!runningGC) {
long mv = mt.incrementAndGet();
double pc = (double)mv/(double)v;
SDFSLogger.getLog().info("might be in bloom filter " + runningGC + " pc=" + pc);
}
*/
return null;
}
private long getPos(byte[] hash) throws IOException {
long pos = -1;
Lock l = gcLock.readLock();
l.lock();
try {
if (!runningGC && !lbf.mightContain(hash)) return pos;
} finally {
l.unlock();
}
Iterator<ProgressiveFileByteArrayLongMap> iter = activeReadMaps.iterator();
while (iter.hasNext()) {
ProgressiveFileByteArrayLongMap m = iter.next();
pos = m.get(hash);
if (pos != -1) {
return pos;
}
}
if (pos == -1) {
iter = maps.iterator();
while (iter.hasNext()) {
ProgressiveFileByteArrayLongMap m = iter.next();
pos = m.get(hash);
if (pos != -1) {
al.lock();
try {
if (!activeReadMaps.contains(m)) {
if (SDFSLogger.isDebug()) SDFSLogger.getLog().debug("adding active " + m.toString());
if (activeReadMaps.remainingCapacity() == 0) {
ProgressiveFileByteArrayLongMap obf = activeReadMaps.poll();
if (obf != null) obf.stopRun();
}
activeReadMaps.offer(m);
try {
loadCacheExecutor.execute(m);
} catch (Exception e) {
SDFSLogger.getLog().debug("unable to cache " + m, e);
}
}
} finally {
al.unlock();
}
return pos;
}
}
}
return pos;
}
