1 files changed, 167 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..43f600eaf1
--- /dev/null
+++ b/qpid/cpp/src/qpid/broker/NullMessageStore.cpp
@@ -0,0 +1,167 @@
+/*
+ *
+ * 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) {}
+
+bool NullMessageStore::init(const Options* /*options*/) {return true;}
+
+void NullMessageStore::truncateInit(const bool /*pushDownStoreFiles*/) {}
+
+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