+++ /dev/null
-/*
- * JBoss, Home of Professional Open Source
- * Copyright 2009 Red Hat Inc. and/or its affiliates and other
- * contributors as indicated by the @author tags. All rights reserved.
- * See the copyright.txt in the distribution for a full listing of
- * individual contributors.
- *
- * This is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
- *
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this software; if not, write to the Free
- * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
- */
-package org.infinispan.interceptors.distribution;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-
-import org.infinispan.CacheException;
-import org.infinispan.commands.FlagAffectedCommand;
-import org.infinispan.commands.remote.ClusteredGetCommand;
-import org.infinispan.commands.write.DataWriteCommand;
-import org.infinispan.commands.write.WriteCommand;
-import org.infinispan.container.entries.InternalCacheEntry;
-import org.infinispan.container.entries.InternalCacheValue;
-import org.infinispan.context.InvocationContext;
-import org.infinispan.context.impl.TxInvocationContext;
-import org.infinispan.distribution.DistributionManager;
-import org.infinispan.factories.annotations.Inject;
-import org.infinispan.interceptors.ClusteringInterceptor;
-import org.infinispan.interceptors.locking.ClusteringDependentLogic;
-import org.infinispan.remoting.responses.ClusteredGetResponseValidityFilter;
-import org.infinispan.remoting.responses.ExceptionResponse;
-import org.infinispan.remoting.responses.Response;
-import org.infinispan.remoting.responses.SuccessfulResponse;
-import org.infinispan.remoting.rpc.ResponseFilter;
-import org.infinispan.remoting.rpc.ResponseMode;
-import org.infinispan.remoting.rpc.RpcOptions;
-import org.infinispan.remoting.transport.Address;
-import org.infinispan.transaction.xa.GlobalTransaction;
-import org.infinispan.util.logging.Log;
-import org.infinispan.util.logging.LogFactory;
-
-
-/**
- * Base class for distribution of entries across a cluster.
- *
- * @author Manik Surtani
- * @author Mircea.Markus@jboss.com
- * @author Pete Muir
- * @author Dan Berindei <dan@infinispan.org>
- * @since 4.0
- */
-public abstract class BaseDistributionInterceptor extends ClusteringInterceptor {
-
- protected DistributionManager dm;
-
- protected ClusteringDependentLogic cdl;
-
- private static final Log log = LogFactory.getLog(BaseDistributionInterceptor.class);
-
- @Override
- protected Log getLog() {
- return log;
- }
-
- @Inject
- public void injectDependencies(DistributionManager distributionManager, ClusteringDependentLogic cdl) {
- this.dm = distributionManager;
- this.cdl = cdl;
- }
-
- @Override
- protected final InternalCacheEntry retrieveFromRemoteSource(Object key, InvocationContext ctx, boolean acquireRemoteLock, FlagAffectedCommand command) throws Exception {
- GlobalTransaction gtx = acquireRemoteLock ? ((TxInvocationContext)ctx).getGlobalTransaction() : null;
- ClusteredGetCommand get = cf.buildClusteredGetCommand(key, command.getFlags(), acquireRemoteLock, gtx);
-
- List<Address> targets = new ArrayList<Address>(stateTransferManager.getCacheTopology().getReadConsistentHash().locateOwners(key));
- // if any of the recipients has left the cluster since the command was issued, just don't wait for its response
- targets.retainAll(rpcManager.getTransport().getMembers());
- ResponseFilter filter = new ClusteredGetResponseValidityFilter(targets, rpcManager.getAddress());
- RpcOptions options = rpcManager.getRpcOptionsBuilder(ResponseMode.WAIT_FOR_VALID_RESPONSE, false)
- .responseFilter(filter).build();
- Map<Address, Response> responses = rpcManager.invokeRemotely(targets, get, options);
-
- if (!responses.isEmpty()) {
- for (Response r : responses.values()) {
- if (r instanceof SuccessfulResponse) {
- InternalCacheValue cacheValue = (InternalCacheValue) ((SuccessfulResponse) r).getResponseValue();
- return cacheValue.toInternalCacheEntry(key);
- }
- }
- }
-
- // TODO If everyone returned null, and the read CH has changed, retry the remote get.
- // Otherwise our get command might be processed by the old owners after they have invalidated their data
- // and we'd return a null even though the key exists on
- return null;
- }
-
- protected final Object handleNonTxWriteCommand(InvocationContext ctx, DataWriteCommand command) throws Throwable {
- if (ctx.isInTxScope()) {
- throw new CacheException("Attempted execution of non-transactional write command in a transactional invocation context");
- }
-
- RecipientGenerator recipientGenerator = new SingleKeyRecipientGenerator(command.getKey());
-
- // see if we need to load values from remote sources first
- remoteGetBeforeWrite(ctx, command, recipientGenerator);
-
- // if this is local mode then skip distributing
- if (isLocalModeForced(command)) {
- return invokeNextInterceptor(ctx, command);
- }
-
- boolean isSync = isSynchronous(command);
- if (!ctx.isOriginLocal()) {
- Object returnValue = invokeNextInterceptor(ctx, command);
- Address primaryOwner = cdl.getPrimaryOwner(command.getKey());
- if (primaryOwner.equals(rpcManager.getAddress())) {
- if (command.isConditional() && !command.isSuccessful()) {
- log.tracef(
- "Skipping the replication of the conditional command as it did not succeed on primary owner (%s).",
- command);
- return returnValue;
- }
- rpcManager.invokeRemotely(recipientGenerator.generateRecipients(), command,
- rpcManager.getDefaultRpcOptions(isSync));
- } else {
- log.tracef("Didn't invoke RPC because primaryOwner (%s) didn't match this node (%s)", primaryOwner,
- rpcManager.getAddress());
- log.tracef("Hashcode is (%s) for Key (%s)",
- command.getKey().hashCode(), command.getKey());
- }
- return returnValue;
- } else {
- Address primaryOwner = cdl.getPrimaryOwner(command.getKey());
- if (primaryOwner.equals(rpcManager.getAddress())) {
- Object result = invokeNextInterceptor(ctx, command);
- if (command.isConditional() && !command.isSuccessful()) {
- log.tracef("Skipping the replication of the conditional command as it did not succeed on primary owner (%s).", command);
- return result;
- }
- List<Address> recipients = recipientGenerator.generateRecipients();
- log.tracef("I'm the primary owner, sending the command to all (%s) the recipients in order to be applied.", recipients);
- // check if a single owner has been configured and the target for the key is the local address
- boolean isSingleOwnerAndLocal = cacheConfiguration.clustering().hash().numOwners() == 1
- && recipients != null
- && recipients.size() == 1
- && recipients.get(0).equals(rpcManager.getTransport().getAddress());
- if (!isSingleOwnerAndLocal) {
- rpcManager.invokeRemotely(recipients, command, rpcManager.getDefaultRpcOptions(isSync));
- }
- return result;
- } else {
- log.tracef("I'm not the primary owner, so sending the command to the primary owner(%s) in order to be forwarded", primaryOwner);
- log.tracef("Hashcode is (%s) for Key (%s)", command.getKey().hashCode(), command.getKey());
-
- Object localResult = invokeNextInterceptor(ctx, command);
- boolean isSyncForwarding = isSync || isNeedReliableReturnValues(command);
- Map<Address, Response> addressResponseMap = rpcManager.invokeRemotely(Collections.singletonList(primaryOwner), command,
- rpcManager.getDefaultRpcOptions(isSyncForwarding));
- if (!isSyncForwarding) return localResult;
-
- return getResponseFromPrimaryOwner(primaryOwner, addressResponseMap);
- }
- }
- }
-
- private Object getResponseFromPrimaryOwner(Address primaryOwner, Map<Address, Response> addressResponseMap) {
- Response fromPrimaryOwner = addressResponseMap.get(primaryOwner);
- if (fromPrimaryOwner == null) {
- log.tracef("Primary owner %s returned null", primaryOwner);
- return null;
- }
- if (!fromPrimaryOwner.isSuccessful()) {
- Throwable cause = fromPrimaryOwner instanceof ExceptionResponse ? ((ExceptionResponse)fromPrimaryOwner).getException() : null;
- throw new CacheException("Got unsuccessful response from primary owner: " + fromPrimaryOwner, cause);
- } else {
- return ((SuccessfulResponse) fromPrimaryOwner).getResponseValue();
- }
- }
-
- protected abstract void remoteGetBeforeWrite(InvocationContext ctx, WriteCommand command, RecipientGenerator keygen) throws Throwable;
-
- interface RecipientGenerator {
-
- Collection<Object> getKeys();
-
- List<Address> generateRecipients();
- }
-
- class SingleKeyRecipientGenerator implements RecipientGenerator {
- private final Object key;
- private final Set<Object> keys;
- private List<Address> recipients = null;
-
- SingleKeyRecipientGenerator(Object key) {
- this.key = key;
- keys = Collections.singleton(key);
- }
-
- @Override
- public List<Address> generateRecipients() {
- if (recipients == null) {
- recipients = cdl.getOwners(key);
- }
- return recipients;
- }
-
- @Override
- public Collection<Object> getKeys() {
- return keys;
- }
- }
-
- class MultipleKeysRecipientGenerator implements RecipientGenerator {
-
- private final Collection<Object> keys;
- private List<Address> recipients = null;
-
- MultipleKeysRecipientGenerator(Collection<Object> keys) {
- this.keys = keys;
- }
-
- @Override
- public List<Address> generateRecipients() {
- if (recipients == null) {
- recipients = cdl.getOwners(keys);
- }
- return recipients;
- }
-
- @Override
- public Collection<Object> getKeys() {
- return keys;
- }
- }
-}
Code Review / controller.git / commitdiff