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Diffstat (limited to 'qpid/cpp/src/qpid/broker/NullMessageStore.cpp')
-rw-r--r-- | qpid/cpp/src/qpid/broker/NullMessageStore.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/broker/NullMessageStore.cpp b/qpid/cpp/src/qpid/broker/NullMessageStore.cpp new file mode 100644 index 0000000000..f2ff7d0e6e --- /dev/null +++ b/qpid/cpp/src/qpid/broker/NullMessageStore.cpp @@ -0,0 +1,163 @@ +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + */ + +#include "qpid/broker/NullMessageStore.h" +#include "qpid/broker/MessageStoreModule.h" +#include "qpid/broker/RecoveryManager.h" +#include "qpid/log/Statement.h" +#include "qpid/framing/reply_exceptions.h" + +#include <iostream> + +using boost::intrusive_ptr; + +namespace qpid{ +namespace broker{ + +const std::string nullxid = ""; + +class SimpleDummyCtxt : public TransactionContext {}; + +class DummyCtxt : public TPCTransactionContext +{ + const std::string xid; +public: + DummyCtxt(const std::string& _xid) : xid(_xid) {} + static std::string getXid(TransactionContext& ctxt) + { + DummyCtxt* c(dynamic_cast<DummyCtxt*>(&ctxt)); + return c ? c->xid : nullxid; + } +}; + +NullMessageStore::NullMessageStore() : nextPersistenceId(1) {} + +void NullMessageStore::create(PersistableQueue& queue, const framing::FieldTable& /*args*/) +{ + queue.setPersistenceId(nextPersistenceId++); +} + +void NullMessageStore::destroy(PersistableQueue&) {} + +void NullMessageStore::create(const PersistableExchange& exchange, const framing::FieldTable& /*args*/) +{ + exchange.setPersistenceId(nextPersistenceId++); +} + +void NullMessageStore::destroy(const PersistableExchange& ) {} + +void NullMessageStore::bind(const PersistableExchange&, const PersistableQueue&, const std::string&, const framing::FieldTable&){} + +void NullMessageStore::unbind(const PersistableExchange&, const PersistableQueue&, const std::string&, const framing::FieldTable&){} + +void NullMessageStore::create(const PersistableConfig& config) +{ + config.setPersistenceId(nextPersistenceId++); +} + +void NullMessageStore::destroy(const PersistableConfig&) {} + +void NullMessageStore::recover(RecoveryManager&) {} + +void NullMessageStore::stage(const intrusive_ptr<PersistableMessage>&) {} + +void NullMessageStore::destroy(PersistableMessage&) {} + +void NullMessageStore::appendContent(const intrusive_ptr<const PersistableMessage>&, const std::string&) {} + +void NullMessageStore::loadContent(const qpid::broker::PersistableQueue&, + const intrusive_ptr<const PersistableMessage>&, + std::string&, uint64_t, uint32_t) +{ + throw qpid::framing::InternalErrorException("Can't load content; persistence not enabled"); +} + +void NullMessageStore::enqueue(TransactionContext*, + const intrusive_ptr<PersistableMessage>& msg, + const PersistableQueue&) +{ + msg->enqueueComplete(); +} + +void NullMessageStore::dequeue(TransactionContext*, + const intrusive_ptr<PersistableMessage>& msg, + const PersistableQueue&) +{ + msg->dequeueComplete(); +} + +void NullMessageStore::flush(const qpid::broker::PersistableQueue&) {} + +uint32_t NullMessageStore::outstandingQueueAIO(const PersistableQueue& ) { + return 0; +} + +std::auto_ptr<TransactionContext> NullMessageStore::begin() +{ + return std::auto_ptr<TransactionContext>(new SimpleDummyCtxt()); +} + +std::auto_ptr<TPCTransactionContext> NullMessageStore::begin(const std::string& xid) +{ + return std::auto_ptr<TPCTransactionContext>(new DummyCtxt(xid)); +} + +void NullMessageStore::prepare(TPCTransactionContext& ctxt) +{ + qpid::sys::ScopedLock<qpid::sys::Mutex> l(lock); + prepared.insert(DummyCtxt::getXid(ctxt)); +} + +void NullMessageStore::commit(TransactionContext& ctxt) +{ + qpid::sys::ScopedLock<qpid::sys::Mutex> l(lock); + prepared.erase(DummyCtxt::getXid(ctxt)); +} + +void NullMessageStore::abort(TransactionContext& ctxt) +{ + qpid::sys::ScopedLock<qpid::sys::Mutex> l(lock); + prepared.erase(DummyCtxt::getXid(ctxt)); +} + +void NullMessageStore::collectPreparedXids(std::set<std::string>& out) +{ + qpid::sys::ScopedLock<qpid::sys::Mutex> l(lock); + out.insert(prepared.begin(), prepared.end()); +} + +bool NullMessageStore::isNull() const +{ + return true; +} + +bool NullMessageStore::isNullStore(const MessageStore* store) +{ + const MessageStoreModule* wrapper = dynamic_cast<const MessageStoreModule*>(store); + if (wrapper) { + return wrapper->isNull(); + } else { + const NullMessageStore* test = dynamic_cast<const NullMessageStore*>(store); + return test && test->isNull(); + } +} + +}} // namespace qpid::broker |