public void commit(Xid xid, boolean isOnePhase) throws XAException {
// always call prepare() - even if this is just a 1PC!
if (isOnePhase) prepare(xid);
if (trace) log.trace("committing TransactionXaAdapter: " + globalTx);
try {
LocalTxInvocationContext ctx = icc.createTxInvocationContext();
ctx.setXaCache(this);
if (configuration.isOnePhaseCommit()) {
checkMarkedForRollback();
if (trace) log.trace("Doing an 1PC prepare call on the interceptor chain");
PrepareCommand command = commandsFactory.buildPrepareCommand(globalTx, modifications, true);
try {
invoker.invoke(ctx, command);
} catch (Throwable e) {
log.error("Error while processing 1PC PrepareCommand", e);
throw new XAException(XAException.XAER_RMERR);
}
} else {
CommitCommand commitCommand = commandsFactory.buildCommitCommand(globalTx);
try {
invoker.invoke(ctx, commitCommand);
} catch (Throwable e) {
log.error("Error while processing 1PC PrepareCommand", e);
throw new XAException(XAException.XAER_RMERR);
}
}
} finally {
txTable.removeLocalTransaction(transaction);
this.modifications = null;
}
}
public static void replicateCommand(Cache cache, VisitableCommand command) throws Throwable {
ComponentRegistry cr = extractComponentRegistry(cache);
InterceptorChain ic = cr.getComponent(InterceptorChain.class);
InvocationContextContainer icc = cr.getComponent(InvocationContextContainer.class);
InvocationContext ctxt = icc.createInvocationContext(true, -1);
ic.invoke(ctxt, command);
}
/**
* Replaces the existing interceptor chain in the cache wih one represented by the interceptor
* passed in. This utility updates dependencies on all components that rely on the interceptor
* chain as well.
*
* @param cache cache that needs to be altered
* @param interceptor the first interceptor in the new chain.
*/
public static void replaceInterceptorChain(Cache cache, CommandInterceptor interceptor) {
ComponentRegistry cr = extractComponentRegistry(cache);
// make sure all interceptors here are wired.
CommandInterceptor i = interceptor;
do {
cr.wireDependencies(i);
} while ((i = i.getNext()) != null);
InterceptorChain inch = cr.getComponent(InterceptorChain.class);
inch.setFirstInChain(interceptor);
}
@Override
protected final void resetCaches(List<Cache<GroupKey, String>> cacheList) {
for (Cache cache : cacheList) {
InterceptorChain chain = TestingUtil.extractComponent(cache, InterceptorChain.class);
if (chain.containsInterceptorType(BlockCommandInterceptor.class)) {
((BlockCommandInterceptor)
chain.getInterceptorsWithClass(BlockCommandInterceptor.class).get(0))
.reset();
}
}
}
/**
* Replaces an existing interceptor of the given type in the interceptor chain with a new
* interceptor instance passed as parameter.
*
* @param replacingInterceptor the interceptor to add to the interceptor chain
* @param toBeReplacedInterceptorType the type of interceptor that should be swapped with the new
* one
* @return true if the interceptor was replaced
*/
public static boolean replaceInterceptor(
Cache cache,
CommandInterceptor replacingInterceptor,
Class<? extends CommandInterceptor> toBeReplacedInterceptorType) {
ComponentRegistry cr = extractComponentRegistry(cache);
// make sure all interceptors here are wired.
CommandInterceptor i = replacingInterceptor;
do {
cr.wireDependencies(i);
} while ((i = i.getNext()) != null);
InterceptorChain inch = cr.getComponent(InterceptorChain.class);
return inch.replaceInterceptor(replacingInterceptor, toBeReplacedInterceptorType);
}
private static BlockCommandInterceptor injectBlockCommandInterceptorIfAbsent(
Cache<GroupKey, String> cache) {
InterceptorChain chain = TestingUtil.extractComponent(cache, InterceptorChain.class);
BlockCommandInterceptor interceptor;
if (chain.containsInterceptorType(BlockCommandInterceptor.class)) {
interceptor =
(BlockCommandInterceptor)
chain.getInterceptorsWithClass(BlockCommandInterceptor.class).get(0);
} else {
interceptor = new BlockCommandInterceptor();
chain.addInterceptorAfter(interceptor, EntryWrappingInterceptor.class);
}
interceptor.reset();
return interceptor;
}
@SuppressWarnings("unchecked")
final V get(Object key, EnumSet<Flag> explicitFlags, ClassLoader explicitClassLoader) {
assertKeyNotNull(key);
InvocationContext ctx = getInvocationContextForRead(null, explicitFlags, explicitClassLoader);
GetKeyValueCommand command = commandsFactory.buildGetKeyValueCommand(key, ctx.getFlags());
return (V) invoker.invoke(ctx, command);
}
private Object executeCommandAndCommitIfNeeded(InvocationContext ctx, VisitableCommand command) {
final boolean txInjected =
ctx.isInTxScope() && ((TxInvocationContext) ctx).isImplicitTransaction();
Object result;
try {
result = invoker.invoke(ctx, command);
} catch (RuntimeException e) {
if (txInjected) tryRollback();
throw e;
}
if (txInjected) {
if (trace)
log.tracef("Committing transaction as it was implicit: %s", getOngoingTransaction());
try {
transactionManager.commit();
} catch (Throwable e) {
log.couldNotCompleteInjectedTransaction(e);
tryRollback();
throw new CacheException("Could not commit implicit transaction", e);
}
}
return result;
}
private void applyStateInTransaction(XSiteState[] chunk) throws Exception {
try {
transactionManager.begin();
InvocationContext ctx =
invocationContextFactory.createInvocationContext(
transactionManager.getTransaction(), true);
((TxInvocationContext) ctx)
.getCacheTransaction()
.setStateTransferFlag(PUT_FOR_X_SITE_STATE_TRANSFER);
for (XSiteState siteState : chunk) {
interceptorChain.invoke(ctx, createPut(siteState));
if (trace) {
log.tracef("Successfully applied key'%s'", siteState);
}
}
transactionManager.commit();
if (debug) {
log.debugf("Successfully applied state. %s keys inserted", chunk.length);
}
} catch (Exception e) {
log.unableToApplyXSiteState(e);
safeRollback();
throw e;
}
}
final boolean containsKey(
Object key, EnumSet<Flag> explicitFlags, ClassLoader explicitClassLoader) {
assertKeyNotNull(key);
InvocationContext ctx = getInvocationContextForRead(null, explicitFlags, explicitClassLoader);
GetKeyValueCommand command = commandsFactory.buildGetKeyValueCommand(key, ctx.getFlags());
Object response = invoker.invoke(ctx, command);
return response != null;
}
boolean lock(
Collection<? extends K> keys, EnumSet<Flag> explicitFlags, ClassLoader explicitClassLoader) {
if (keys == null || keys.isEmpty()) {
throw new IllegalArgumentException("Cannot lock empty list of keys");
}
InvocationContext ctx = getInvocationContextForWrite(explicitFlags, explicitClassLoader);
LockControlCommand command =
commandsFactory.buildLockControlCommand(keys, false, ctx.getFlags());
return (Boolean) invoker.invoke(ctx, command);
}
private void doTest(boolean mods) throws Exception {
// force the prepare command to fail on c2
FailInterceptor interceptor = new FailInterceptor();
interceptor.failFor(PrepareCommand.class);
InterceptorChain ic = TestingUtil.extractComponent(c2, InterceptorChain.class);
ic.addInterceptorBefore(interceptor, TxDistributionInterceptor.class);
MagicKey k1 = new MagicKey("k1", c1);
MagicKey k2 = new MagicKey("k2", c2);
tm(c1).begin();
if (mods) {
c1.put(k1, "v1");
c1.put(k2, "v2");
assertKeyLockedCorrectly(k1);
assertKeyLockedCorrectly(k2);
} else {
c1.getAdvancedCache().lock(k1);
c1.getAdvancedCache().lock(k2);
assertNull(c1.get(k1));
assertNull(c1.get(k2));
assertKeyLockedCorrectly(k1);
assertKeyLockedCorrectly(k2);
}
try {
tm(c1).commit();
assert false : "Commit should have failed";
} catch (Exception e) {
// expected
}
assertNotLocked(c1, k1);
assertNotLocked(c2, k1);
assertNotLocked(c1, k2);
assertNotLocked(c2, k2);
}
public void applyRemoteTxLog(List<WriteCommand> commands) {
for (WriteCommand cmd : commands) {
try {
// this is a remotely originating tx
cf.initializeReplicableCommand(cmd, true);
InvocationContext ctx = icc.createInvocationContext();
ctx.setFlags(SKIP_REMOTE_LOOKUP, CACHE_MODE_LOCAL, SKIP_SHARED_CACHE_STORE, SKIP_LOCKING);
interceptorChain.invoke(ctx, cmd);
} catch (Exception e) {
log.exceptionWhenReplaying(cmd, e);
}
}
}
public void rollback(Xid xid) throws XAException {
RollbackCommand rollbackCommand = commandsFactory.buildRollbackCommand(globalTx);
LocalTxInvocationContext ctx = icc.createTxInvocationContext();
ctx.setXaCache(this);
try {
invoker.invoke(ctx, rollbackCommand);
} catch (Throwable e) {
log.error("Exception while rollback", e);
throw new XAException(XAException.XA_HEURHAZ);
} finally {
txTable.removeLocalTransaction(transaction);
this.modifications = null;
}
}
private void createQueryInterceptorIfNeeded(
ComponentRegistry cr, Configuration cfg, SearchFactoryIntegrator searchFactory) {
QueryInterceptor queryInterceptor = cr.getComponent(QueryInterceptor.class);
if (queryInterceptor == null) {
queryInterceptor = buildQueryInterceptor(cfg, searchFactory);
// Interceptor registration not needed, core configuration handling
// already does it for all custom interceptors - UNLESS the InterceptorChain already exists in
// the component registry!
InterceptorChain ic = cr.getComponent(InterceptorChain.class);
ConfigurationBuilder builder = new ConfigurationBuilder().read(cfg);
InterceptorConfigurationBuilder interceptorBuilder =
builder.customInterceptors().addInterceptor();
interceptorBuilder.interceptor(queryInterceptor);
if (!cfg.transaction().transactionMode().isTransactional()) {
if (ic != null)
ic.addInterceptorAfter(queryInterceptor, NonTransactionalLockingInterceptor.class);
interceptorBuilder.after(NonTransactionalLockingInterceptor.class);
} else if (cfg.transaction().lockingMode() == LockingMode.OPTIMISTIC) {
if (ic != null)
ic.addInterceptorAfter(queryInterceptor, OptimisticLockingInterceptor.class);
interceptorBuilder.after(OptimisticLockingInterceptor.class);
} else {
if (ic != null)
ic.addInterceptorAfter(queryInterceptor, PessimisticLockingInterceptor.class);
interceptorBuilder.after(PessimisticLockingInterceptor.class);
}
if (ic != null) {
cr.registerComponent(queryInterceptor, QueryInterceptor.class);
cr.registerComponent(queryInterceptor, queryInterceptor.getClass().getName(), true);
}
cfg.customInterceptors().interceptors(builder.build().customInterceptors().interceptors());
}
}
private void applyStateInNonTransaction(XSiteState[] chunk) {
SingleKeyNonTxInvocationContext ctx =
(SingleKeyNonTxInvocationContext)
invocationContextFactory.createSingleKeyNonTxInvocationContext();
for (XSiteState siteState : chunk) {
PutKeyValueCommand command = createPut(siteState);
ctx.setLockOwner(command.getLockOwner());
interceptorChain.invoke(ctx, command);
ctx.resetState(); // re-use same context. Old context is not longer needed
if (trace) {
log.tracef("Successfully applied key'%s'", siteState);
}
}
if (debug) {
log.debugf("Successfully applied state. %s keys inserted", chunk.length);
}
}
public int prepare(Xid xid) throws XAException {
checkMarkedForRollback();
if (configuration.isOnePhaseCommit()) {
if (trace)
log.trace("Received prepare for tx: " + xid + " . Skipping call as 1PC will be used.");
return XA_OK;
}
PrepareCommand prepareCommand =
commandsFactory.buildPrepareCommand(
globalTx, modifications, configuration.isOnePhaseCommit());
if (trace) log.trace("Sending prepare command through the chain: " + prepareCommand);
LocalTxInvocationContext ctx = icc.createTxInvocationContext();
ctx.setXaCache(this);
try {
invoker.invoke(ctx, prepareCommand);
return XA_OK;
} catch (Throwable e) {
log.error("Error while processing PrepareCommand", e);
throw new XAException(XAException.XAER_RMERR);
}
}
private Map<Object, InternalCacheValue> applyStateMap(
Map<Object, InternalCacheValue> state, boolean withRetry) {
Map<Object, InternalCacheValue> retry =
withRetry ? new HashMap<Object, InternalCacheValue>() : null;
for (Map.Entry<Object, InternalCacheValue> e : state.entrySet()) {
InternalCacheValue v = e.getValue();
InvocationContext ctx = icc.createInvocationContext();
// locking not necessary in the case of a join since the node isn't doing anything else
// TODO what if the node is already running?
ctx.setFlags(
CACHE_MODE_LOCAL,
SKIP_CACHE_LOAD,
SKIP_REMOTE_LOOKUP,
SKIP_SHARED_CACHE_STORE,
SKIP_LOCKING,
SKIP_OWNERSHIP_CHECK);
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.tracef(
"Problem %s encountered when applying state for key %s. Adding entry to retry queue.",
ee.getMessage(), e.getKey());
retry.put(e.getKey(), e.getValue());
} else {
log.problemApplyingStateForKey(ee.getMessage(), e.getKey());
}
}
}
return retry;
}
@SuppressWarnings("unchecked")
Set<Map.Entry<K, V>> entrySet(EnumSet<Flag> explicitFlags, ClassLoader explicitClassLoader) {
InvocationContext ctx = getInvocationContextForRead(null, explicitFlags, explicitClassLoader);
EntrySetCommand command = commandsFactory.buildEntrySetCommand();
return (Set<Map.Entry<K, V>>) invoker.invoke(ctx, command);
}
private boolean verifyChainContainsQueryInterceptor(ComponentRegistry cr) {
InterceptorChain interceptorChain = cr.getComponent(InterceptorChain.class);
return interceptorChain.containsInterceptorType(QueryInterceptor.class, true);
}
private void removeCommandBlocked(Cache cache) {
InterceptorChain chain = TestingUtil.extractComponent(cache, InterceptorChain.class);
chain.removeInterceptor(CommandBlocker.class);
}
private CommandBlocker addCommandBlocker(Cache cache) {
InterceptorChain chain = TestingUtil.extractComponent(cache, InterceptorChain.class);
CommandBlocker blocker = new CommandBlocker();
chain.addInterceptor(blocker, 0);
return blocker;
}
public void removeInterceptor(Class<? extends CommandInterceptor> interceptorType) {
invoker.removeInterceptor(interceptorType);
}
public void removeInterceptor(int position) {
invoker.removeInterceptor(position);
}
public void addInterceptorBefore(
CommandInterceptor i, Class<? extends CommandInterceptor> beforeInterceptor) {
invoker.addInterceptorBefore(i, beforeInterceptor);
}
public void addInterceptorAfter(
CommandInterceptor i, Class<? extends CommandInterceptor> afterInterceptor) {
invoker.addInterceptorAfter(i, afterInterceptor);
}
public void addInterceptor(CommandInterceptor i, int position) {
invoker.addInterceptor(i, position);
}
public List<CommandInterceptor> getInterceptorChain() {
return invoker.asList();
}
final void evict(K key, EnumSet<Flag> explicitFlags, ClassLoader explicitClassLoader) {
assertKeyNotNull(key);
InvocationContext ctx = createNonTxInvocationContext(explicitFlags, explicitClassLoader);
EvictCommand command = commandsFactory.buildEvictCommand(key);
invoker.invoke(ctx, command);
}
@SuppressWarnings("unchecked")
Collection<V> values(EnumSet<Flag> explicitFlags, ClassLoader explicitClassLoader) {
InvocationContext ctx = getInvocationContextForRead(null, explicitFlags, explicitClassLoader);
ValuesCommand command = commandsFactory.buildValuesCommand();
return (Collection<V>) invoker.invoke(ctx, command);
}
