Handle case where recovered exchange is of unrecognised type.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@777096 13f79535-47bb-0310-9956-ffa450edef68

2 files changed, 14 insertions, 4 deletions

diff --git a/cpp/src/qpid/broker/Exchange.cpp b/cpp/src/qpid/broker/Exchange.cpp
index acedd1f91a..6ce381d199 100644
--- a/cpp/src/qpid/broker/Exchange.cpp
+++ b/cpp/src/qpid/broker/Exchange.cpp
@@ -160,9 +160,14 @@ Exchange::shared_ptr Exchange::decode(ExchangeRegistry& exchanges, Buffer& buffe
     buffer.getShortString(type);
     buffer.get(args);
 
-    Exchange::shared_ptr exch = exchanges.declare(name, type, durable, args).first;
-    exch->sequenceNo = args.getAsInt64(qpidSequenceCounter);
-    return exch;
+    try {
+        Exchange::shared_ptr exch = exchanges.declare(name, type, durable, args).first;
+        exch->sequenceNo = args.getAsInt64(qpidSequenceCounter);
+        return exch;
+    } catch (const UnknownExchangeTypeException&) {
+        QPID_LOG(warning, "Could not create exchange " << name << "; type " << type << " is not recognised");
+        return Exchange::shared_ptr();
+    }
 }
 
 void Exchange::encode(Buffer& buffer) const 
diff --git a/cpp/src/qpid/broker/RecoveryManagerImpl.cpp b/cpp/src/qpid/broker/RecoveryManagerImpl.cpp
index fa891f84bf..1e8dcd9868 100644
--- a/cpp/src/qpid/broker/RecoveryManagerImpl.cpp
+++ b/cpp/src/qpid/broker/RecoveryManagerImpl.cpp
@@ -103,7 +103,12 @@ public:
 
 RecoverableExchange::shared_ptr RecoveryManagerImpl::recoverExchange(framing::Buffer& buffer)
 {
-    return RecoverableExchange::shared_ptr(new RecoverableExchangeImpl(Exchange::decode(exchanges, buffer), queues));
+    Exchange::shared_ptr e = Exchange::decode(exchanges, buffer);
+    if (e) {
+        return RecoverableExchange::shared_ptr(new RecoverableExchangeImpl(e, queues));
+    } else {
+        return RecoverableExchange::shared_ptr();
+    }
 }
 
 RecoverableQueue::shared_ptr RecoveryManagerImpl::recoverQueue(framing::Buffer& buffer)