1 files changed, 89 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/framing/SequenceNumberSet.cpp b/qpid/cpp/src/qpid/framing/SequenceNumberSet.cpp
new file mode 100644
index 0000000000..afab9033e5
--- /dev/null
+++ b/qpid/cpp/src/qpid/framing/SequenceNumberSet.cpp
@@ -0,0 +1,89 @@
+/*
+ *
+ * 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 "SequenceNumberSet.h"
+
+using namespace qpid::framing;
+
+void SequenceNumberSet::encode(Buffer& buffer) const
+{
+    buffer.putShort(size() * 4);
+    for (const_iterator i = begin(); i != end(); i++) {
+        buffer.putLong(i->getValue());
+    }
+}
+
+void SequenceNumberSet::decode(Buffer& buffer)
+{
+    uint16_t count = (buffer.getShort() / 4);
+    for (uint16_t i = 0; i < count; i++) {
+        push_back(SequenceNumber(buffer.getLong()));
+    }
+}
+
+uint32_t SequenceNumberSet::encodedSize() const
+{
+    return 2 /*count*/ + (size() * 4);
+}
+
+SequenceNumberSet SequenceNumberSet::condense() const
+{
+    SequenceNumberSet result;
+    const_iterator last = end();
+    const_iterator start = end();
+    for (const_iterator i = begin(); i != end(); i++) {
+        if (start == end()) {
+            start = i;
+        } else if (*i - *last > 1) {
+            result.push_back(*start);
+            result.push_back(*last);            
+            start = i;
+        }
+        last = i;
+    }
+    if (start != end()) {
+        result.push_back(*start);
+        result.push_back(*last);            
+    }
+    return result;
+}
+
+void SequenceNumberSet::addRange(const SequenceNumber& start, const SequenceNumber& end)
+{
+    push_back(start);
+    push_back(end);
+}
+
+namespace qpid{
+namespace framing{
+
+std::ostream& operator<<(std::ostream& out, const SequenceNumberSet& set) {
+    out << "{";
+    for (SequenceNumberSet::const_iterator i = set.begin(); i != set.end(); i++) {
+        if (i != set.begin()) out << ", "; 
+        out << (i->getValue());
+    }
+    out << "}";
+    return out;
+}
+
+}
+}