1 files changed, 102 insertions, 0 deletions
diff --git a/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/codec/MapWriter.java b/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/codec/MapWriter.java
new file mode 100644
index 0000000000..b239d4a397
--- /dev/null
+++ b/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/codec/MapWriter.java
@@ -0,0 +1,102 @@
+/*
+ *
+ * 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.
+ *
+ */
+
+package org.apache.qpid.amqp_1_0.codec;
+
+import java.util.Iterator;
+import java.util.Map;
+
+public class MapWriter extends AbstractMapWriter<Map>
+{
+    private Map _map;
+    private Object _value;
+    private Iterator<Map.Entry> _iterator;
+
+    public MapWriter(final Registry registry)
+    {
+        super(registry);
+    }
+
+    @Override
+    protected void onSetValue(final Map value)
+    {
+        _map = value;
+        _iterator = value.entrySet().iterator();
+    }
+
+    @Override
+    protected int getMapCount()
+    {
+        return _map.size();
+    }
+
+    @Override
+    protected boolean hasMapNext()
+    {
+        return _iterator.hasNext();
+    }
+
+    @Override
+    protected Object nextKey()
+    {
+        Map.Entry entry = _iterator.next();
+        _value = entry.getValue();
+        return entry.getKey();
+    }
+    @Override
+    protected Object nextValue()
+    {
+        Object value = _value;
+        _value = null;
+        return value;
+    }
+
+
+    @Override
+    protected void onClear()
+    {
+        _map = null;
+        _iterator = null;
+        _value = null;
+    }
+
+    @Override
+    protected void onReset()
+    {
+        _iterator = _map.entrySet().iterator();
+        _value = null;
+    }
+
+
+    private static Factory<Map> FACTORY = new Factory<Map>()
+                                            {
+
+                                                public ValueWriter<Map> newInstance(Registry registry)
+                                                {
+                                                    return new MapWriter(registry);
+                                                }
+                                            };
+
+    public static void register(ValueWriter.Registry registry)
+    {
+        registry.register(Map.class, FACTORY);
+    }
+}
+\ No newline at end of file