Examples of org.nasutekds.server.types.CacheEntry

org.nasutekds.server.types.CacheEntry
This class defines a Directory Server cache entry, which is simply used to store an entry with its associated backend and entry ID.

      cacheMisses.getAndIncrement();
      return null;
    }
    else
    {
      CacheEntry cacheEntry = ref.get();
      if (cacheEntry == null)
      {
        // Indicate cache miss.
        cacheMisses.getAndIncrement();
        return null;
      }
      else
      {
        // Indicate cache hit.
        cacheHits.getAndIncrement();
        return cacheEntry.getEntry();
      }
    }
  }

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    {
      return -1;
    }
    else
    {
      CacheEntry cacheEntry = ref.get();
      if (cacheEntry == null)
      {
        return -1;
      }
      else
      {
        return cacheEntry.getEntryID();
      }
    }
  }

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    ConcurrentHashMap<Long,SoftReference<CacheEntry>>
      backendMap = idMap.get(backend);
    if (backendMap != null) {
      SoftReference<CacheEntry> ref = backendMap.get(entryID);
      if (ref != null) {
        CacheEntry cacheEntry = ref.get();
        if (cacheEntry != null) {
          return cacheEntry.getDN();
        }
      }
    }
    return null;
  }

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   * {@inheritDoc}
   */
  public void putEntry(Entry entry, Backend backend, long entryID)
  {
    // Create the cache entry based on the provided information.
    CacheEntry cacheEntry = new CacheEntry(entry, backend, entryID);
    SoftReference<CacheEntry> ref =
         new SoftReference<CacheEntry>(cacheEntry, referenceQueue);


    SoftReference<CacheEntry> oldRef = dnMap.put(entry.getDN(), ref);
    if (oldRef != null)

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      return false;
    }




    // Create the cache entry based on the provided information.
    CacheEntry cacheEntry = new CacheEntry(entry, backend, entryID);
    SoftReference<CacheEntry> ref =
         new SoftReference<CacheEntry>(cacheEntry, referenceQueue);


    dnMap.put(entry.getDN(), ref);

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    SoftReference<CacheEntry> ref = dnMap.remove(entryDN);
    if (ref != null)
    {
      ref.clear();


      CacheEntry cacheEntry = ref.get();
      if (cacheEntry != null)
      {
        Backend backend = cacheEntry.getBackend();


        ConcurrentHashMap<Long,SoftReference<CacheEntry>> map =
             idMap.get(backend);
        if (map != null)
        {
          ref = map.remove(cacheEntry.getEntryID());
          if (ref != null)
          {
            ref.clear();
          }
          // If this backend becomes empty now remove

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         idMap.remove(backend);
    if (map != null)
    {
      for (SoftReference<CacheEntry> ref : map.values())
      {
        CacheEntry cacheEntry = ref.get();
        if (cacheEntry != null)
        {
          dnMap.remove(cacheEntry.getDN());
        }


        ref.clear();
      }

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  {
    while (!shutdown)
    {
      try
      {
        CacheEntry freedEntry = referenceQueue.remove().get();


        if (freedEntry != null)
        {
          SoftReference<CacheEntry> ref = dnMap.remove(freedEntry.getDN());


          if (ref != null)
          {
            // Note that the entry is there, but it could be a newer version of
            // the entry so we want to make sure it's the same one.
            CacheEntry removedEntry = ref.get();
            if (removedEntry != freedEntry)
            {
              dnMap.putIfAbsent(freedEntry.getDN(), ref);
            }
            else

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  public Entry getEntry(DN entryDN)
  {
    // Simply return the entry from the DN map.
    cacheReadLock.lock();
    try {
      CacheEntry e = dnMap.get(entryDN);
      if (e == null) {
        // Indicate cache miss.
        cacheMisses.getAndIncrement();
        return null;
      } else {
        // Indicate cache hit.
        cacheHits.getAndIncrement();
        return e.getEntry();
      }
    } finally {
      cacheReadLock.unlock();
    }
  }

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  public long getEntryID(DN entryDN)
  {
    // Simply return the ID from the DN map.
    cacheReadLock.lock();
    try {
      CacheEntry e = dnMap.get(entryDN);
      if (e == null) {
        return -1;
      } else {
        return e.getEntryID();
      }
    } finally {
      cacheReadLock.unlock();
    }
  }

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Related Classes of org.nasutekds.server.types.CacheEntry

org.nasutekds.server.extensions.FIFOEntryCache

org.nasutekds.server.extensions.SoftReferenceEntryCache

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