Examples of org.infinispan.container.entries.InternalCacheValue

Package org.infinispan.container.entries

Examples of org.infinispan.container.entries.InternalCacheValue

org.infinispan.container.entries.InternalCacheValue
A representation of an InternalCacheEntry that does not have a reference to the key. This should be used if the key is either not needed or available elsewhere as it is more efficient to marshall and unmarshall. Probably most useful in cache stores.
Note that this should not be used to optimize memory overhead, since the saving of an additional reference to a key (a single object reference) does not warrant the cost of constructing an InternalCacheValue, where an existing InternalCacheEntry is already referenced.
Use of this interface only makes sense when marshalling is involved, since the cost of marshalling the key again can be sidestepped using an InternalCacheValue if the key is already known/marshalled.
@author Manik Surtani @since 4.0


      CacheStore cacheStore = distributionManager.getCacheStoreForRehashing();
      if (cacheStore != null) {
         for (Object k: cacheStore.loadAllKeys(new ReadOnlyDataContainerBackedKeySet(dataContainer))) {
            if (!state.containsKey(k) && shouldTransferOwnershipToJoinNode(k)) {                
               InternalCacheValue v = loadValue(cacheStore, k);               
               if (v != null) state.put(k, v);
            }
         }
      }
      return state;

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      CacheStore cacheStore = distributionManager.getCacheStoreForRehashing();
      if (cacheStore != null) {
         for (Object k : cacheStore.loadAllKeys(new ReadOnlyDataContainerBackedKeySet(dataContainer))) {
            if (!state.containsKey(k) && shouldTransferOwnershipFromLeftNodes(k)) {
               InternalCacheValue v = loadValue(cacheStore, k);               
               if (v != null)
                  state.put(k, v);
            }
         }
      }

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                                                                   configuration.getSyncReplTimeout(), false, filter);


      if (!responses.isEmpty()) {
         for (Response r : responses.values()) {
            if (r instanceof SuccessfulResponse) {
               InternalCacheValue cacheValue = (InternalCacheValue) ((SuccessfulResponse) r).getResponseValue();
               return cacheValue.toInternalCacheEntry(key);
            }
         }
      }


      return null;

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   private Map<Object, InternalCacheValue> applyStateMap(ConsistentHash consistentHash, Map<Object, InternalCacheValue> state, boolean withRetry) {
      Map<Object, InternalCacheValue> retry = withRetry ? new HashMap<Object, InternalCacheValue>() : null;
      for (Map.Entry<Object, InternalCacheValue> e : state.entrySet()) {
         if (consistentHash.locate(e.getKey(), configuration.getNumOwners()).contains(self)) {
            InternalCacheValue v = e.getValue();
            InvocationContext ctx = icc.createInvocationContext();
            ctx.setFlags(CACHE_MODE_LOCAL, SKIP_REMOTE_LOOKUP, SKIP_SHARED_CACHE_STORE, SKIP_LOCKING); // locking not necessary in the case of a join since the node isn't doing anything else.


            try {
               PutKeyValueCommand put = cf.buildPutKeyValueCommand(e.getKey(), v.getValue(), v.getLifespan(), v.getMaxIdle(), ctx.getFlags());
               interceptorChain.invoke(ctx, put);
            } catch (Exception ee) {
               if (withRetry) {
                  if (trace)
                     log.trace("Problem %s encountered when applying state for key %s. Adding entry to retry queue.", ee.getMessage(), e.getKey());

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         }


         @Override
         public void loadAllProcess(ResultSet rs, Set<InternalCacheEntry> result) throws SQLException, CacheLoaderException {
            InputStream inputStream = rs.getBinaryStream(1);
            InternalCacheValue icv = (InternalCacheValue) JdbcUtil.unmarshall(getMarshaller(), inputStream);
            String keyStr = rs.getString(2);
            Object key = ((TwoWayKey2StringMapper) key2StringMapper).getKeyMapping(keyStr);
            result.add(icv.toInternalCacheEntry(key));
         }


         @Override
         public void loadAllKeysProcess(ResultSet rs, Set<Object> keys, Set<Object> keysToExclude) throws SQLException, CacheLoaderException {
            String keyStr = rs.getString(1);
            Object key = ((TwoWayKey2StringMapper) key2StringMapper).getKeyMapping(keyStr);
            if (includeKey(key, keysToExclude)) {
               keys.add(key);
            }
         }


         @Override
         public void toStreamProcess(ResultSet rs, InputStream is, ObjectOutput objectOutput) throws CacheLoaderException, SQLException, IOException {
            InternalCacheValue icv = (InternalCacheValue) JdbcUtil.unmarshall(getMarshaller(), is);
            String key = rs.getString(2);//key is a string
            marshaller.objectToObjectStream(icv.toInternalCacheEntry(key), objectOutput);
         }


         public boolean fromStreamProcess(Object objFromStream, PreparedStatement ps, ObjectInput objectInput) throws SQLException, CacheLoaderException, InterruptedException {
            if (objFromStream instanceof InternalCacheEntry) {
               InternalCacheEntry se = (InternalCacheEntry) objFromStream;

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         ps = conn.prepareStatement(sql);
         ps.setString(1, lockingKey);
         rs = ps.executeQuery();
         if (rs.next()) {
            InputStream inputStream = rs.getBinaryStream(2);
            InternalCacheValue icv = (InternalCacheValue) JdbcUtil.unmarshall(getMarshaller(), inputStream);
            storedEntry = icv.toInternalCacheEntry(key);
         }
      } catch (SQLException e) {
         String message = "SQL error while fetching stored entry with key:" + key + " lockingKey: " + lockingKey;
         log.error(message, e);
         throw new CacheLoaderException(message, e);

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      CacheStore cacheStore = distributionManager.getCacheStoreForRehashing();
      if (cacheStore != null) {
         for (Object k: cacheStore.loadAllKeys(new ReadOnlyDataContainerBackedKeySet(dataContainer))) {
            if (!state.containsKey(k) && shouldAddToMap(k, oldCH, numCopies, self)) {
               InternalCacheValue v = loadValue(cacheStore, k);
               if (v != null) state.put(k, v);
            }
         }
      }
      return state;

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              configuration.getSyncReplTimeout(), false, filter);


      if (!responses.isEmpty()) {
         for (Response r : responses) {
            if (r instanceof SuccessfulResponse) {
               InternalCacheValue cacheValue = (InternalCacheValue) ((SuccessfulResponse) r).getResponseValue();
               return cacheValue.toInternalCacheEntry(key);
            }
         }
      }


      return null;

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   public void applyState(ConsistentHash consistentHash, Map<Object, InternalCacheValue> state) {
      if (trace) log.trace("Apply state with " + state);
      for (Map.Entry<Object, InternalCacheValue> e : state.entrySet()) {
         if (consistentHash.locate(e.getKey(), configuration.getNumOwners()).contains(self)) {
            InternalCacheValue v = e.getValue();
            PutKeyValueCommand put = cf.buildPutKeyValueCommand(e.getKey(), v.getValue(), v.getLifespan(), v.getMaxIdle());
            InvocationContext ctx = icc.createInvocationContext();
            ctx.setFlags(Flag.CACHE_MODE_LOCAL, Flag.SKIP_REMOTE_LOOKUP);
            interceptorChain.invoke(ctx, put);
         }
      }

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   private void addState(InternalCacheEntry ice, Object k, CacheLoader loader) {
      Object key = ice == null ? k : ice.getKey();
      if (keysHandled.contains(key)) return;
      
      InternalCacheValue icv = null;
      
      for (Address leaver : leavers) {
         List<Address> owners = oldCH.locate(key, replCount);
         int leaverIndex = owners.indexOf(leaver);
         if (leaverIndex > -1) {

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