Fixes parsing problem with empty lists ('[]') in addresses, which previously raised an exception and leaked the memory associated with the AddressImpl.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@997771 13f79535-47bb-0310-9956-ffa450edef68

3 files changed, 26 insertions, 2 deletions

diff --git a/qpid/cpp/src/qpid/messaging/AddressParser.cpp b/qpid/cpp/src/qpid/messaging/AddressParser.cpp
index b6d5f764cf..c34c9c0f56 100644
--- a/qpid/cpp/src/qpid/messaging/AddressParser.cpp
+++ b/qpid/cpp/src/qpid/messaging/AddressParser.cpp
@@ -94,7 +94,7 @@ bool AddressParser::readList(Variant& value)
 void AddressParser::readListItems(Variant::List& list)
 {
     Variant item;
-    while (readValue(item)) {
+    while (readValueIfExists(item)) {
         list.push_back(item);
         if (!readChar(',')) break;
     }
@@ -139,8 +139,13 @@ bool AddressParser::readKey(std::string& key)
 
 bool AddressParser::readValue(Variant& value)
 {
+    return readValueIfExists(value) || error("Expected value");
+}
+
+bool AddressParser::readValueIfExists(Variant& value)
+{
     return readSimpleValue(value) || readQuotedValue(value) || 
-        readMap(value)  || readList(value) || error("Expected value");
+        readMap(value)  || readList(value);
 }
 
 bool AddressParser::readString(std::string& value, char delimiter)
diff --git a/qpid/cpp/src/qpid/messaging/AddressParser.h b/qpid/cpp/src/qpid/messaging/AddressParser.h
index a3f41eb04d..1635331d19 100644
--- a/qpid/cpp/src/qpid/messaging/AddressParser.h
+++ b/qpid/cpp/src/qpid/messaging/AddressParser.h
@@ -46,6 +46,7 @@ class AddressParser
     bool readSimpleValue(qpid::types::Variant& word);
     bool readKey(std::string& key);
     bool readValue(qpid::types::Variant& value);
+    bool readValueIfExists(qpid::types::Variant& value);
     bool readKeyValuePair(qpid::types::Variant::Map& map);
     bool readMap(qpid::types::Variant& value);
     bool readList(qpid::types::Variant& value);
diff --git a/qpid/cpp/src/tests/Address.cpp b/qpid/cpp/src/tests/Address.cpp
index a0b87e25af..32d14bb4b8 100644
--- a/qpid/cpp/src/tests/Address.cpp
+++ b/qpid/cpp/src/tests/Address.cpp
@@ -87,6 +87,24 @@ QPID_AUTO_TEST_CASE(testParseOptionsWithList)
     BOOST_CHECK_EQUAL((uint16_t) 101, address.getOptions()["x"].asInt64());
 }
 
+QPID_AUTO_TEST_CASE(testParseOptionsWithEmptyList)
+{
+    Address address("my-topic; {a:[], x:101}");
+    BOOST_CHECK_EQUAL(std::string("my-topic"), address.getName());
+    Variant::List& list = address.getOptions()["a"].asList();
+    BOOST_CHECK_EQUAL(list.size(), 0);
+    BOOST_CHECK_EQUAL((uint16_t) 101, address.getOptions()["x"].asInt64());
+}
+
+QPID_AUTO_TEST_CASE(testParseOptionsWithEmptyMap)
+{
+    Address address("my-topic; {a:{}, x:101}");
+    BOOST_CHECK_EQUAL(std::string("my-topic"), address.getName());
+    Variant::Map& map = address.getOptions()["a"].asMap();
+    BOOST_CHECK_EQUAL(map.size(), 0);
+    BOOST_CHECK_EQUAL((uint16_t) 101, address.getOptions()["x"].asInt64());
+}
+
 QPID_AUTO_TEST_CASE(testParseQuotedNameAndSubject)
 {
     Address address("'my topic with / in it'/'my subject with ; in it'");