1 files changed, 136 insertions, 0 deletions
diff --git a/qpid/java/management/agent/src/main/java/org/apache/qpid/agent/binding/MapBinding.java b/qpid/java/management/agent/src/main/java/org/apache/qpid/agent/binding/MapBinding.java
new file mode 100644
index 0000000000..80889f3b4e
--- /dev/null
+++ b/qpid/java/management/agent/src/main/java/org/apache/qpid/agent/binding/MapBinding.java
@@ -0,0 +1,136 @@
+/*
+ *
+ * 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.agent.binding;
+
+import java.nio.ByteBuffer;
+import java.util.HashMap;
+import java.util.Map;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.qpid.transport.codec.BBDecoder;
+import org.apache.qpid.transport.codec.BBEncoder;
+import org.apache.qpid.transport.codec.Decoder;
+import org.apache.qpid.transport.codec.Encoder;
+
+/**
+ * Binding information from a java Map to a QMF schema.
+ */
+public class MapBinding implements TypeBinding
+{
+    private static Log log = LogFactory.getLog(MapBinding.class);
+    protected BindingContext bctx;
+    protected Class javaClass;
+
+    public MapBinding(BindingContext bctx, Class javaClass)
+    {
+        this.bctx = bctx;
+        this.javaClass = javaClass;
+    }
+
+    @SuppressWarnings("unchecked")
+    public void encode(Encoder enc, Object value)
+    {
+        Map map = (Map) value;
+        BBEncoder newEncoder = new BBEncoder(10);
+        newEncoder.writeUint32(map.size());
+        for (Object key : map.keySet())
+        {
+            String keyString = key.toString();
+            Object mapValue = map.get(key);
+            TypeBinding binding = bctx.getTypeBinding(mapValue.getClass());
+            newEncoder.writeStr8(keyString);
+            newEncoder.writeUint8(binding.getCode());
+            binding.encode(newEncoder, mapValue);
+        }
+        enc.writeVbin32(newEncoder.buffer().array());
+    }
+
+    public Object decode(Decoder dec)
+    {
+        Map map = null;
+        try
+        {
+            if (javaClass.isInterface())
+            {
+                map = new HashMap();
+            } else
+            {
+                map = (Map) javaClass.newInstance();
+            }
+        } catch (Exception e)
+        {
+            throw new BindingException(
+                    "Could not create a Map implementation for "
+                            + javaClass.getName(), e);
+        }
+        BBDecoder newDecoder = new BBDecoder();
+        newDecoder.init(ByteBuffer.wrap(dec.readVbin32()));
+        long count = newDecoder.readUint32();
+        while (count > 0)
+        {
+            String key = newDecoder.readStr8();
+            short typeCode = newDecoder.readUint8();
+            TypeBinding type = QMFTypeBinding.getType(typeCode);
+            if (type == null)
+            {
+                type = bctx.getTypeBinding(Object.class);
+            }
+            map.put(key, type.decode(newDecoder));
+            count -= 1;
+        }
+        return map;
+    }
+
+    // QMF List Type
+    public short getCode()
+    {
+        return (short) 15;
+    }
+
+    @Override
+    public Class<?> getJavaClass()
+    {
+        return javaClass;
+    }
+
+    @Override
+    public String getRefClass()
+    {
+        return null;
+    }
+
+    @Override
+    public String getRefPackage()
+    {
+        return null;
+    }
+
+    @Override
+    public boolean isNative()
+    {
+        return true;
+    }
+
+    public boolean optionalDefault()
+    {
+        return false;
+    }
+}