--- /dev/null
+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.toxml;
+
+import com.google.common.base.Preconditions;
+import org.opendaylight.controller.netconf.confignetconfconnector.util.Util;
+import org.w3c.dom.Document;
+
+import java.util.Map;
+
+public class SimpleCompositeAttributeWritingStrategy extends SimpleAttributeWritingStrategy {
+
+ /**
+ * @param document
+ * @param key
+ */
+ public SimpleCompositeAttributeWritingStrategy(Document document, String key) {
+ super(document, key);
+ }
+
+ protected Object preprocess(Object value) {
+ Util.checkType(value, Map.class);
+ Preconditions.checkArgument(((Map)value).size() == 1, "Unexpected number of values in %s, expected 1", value);
+ return ((Map)value).values().iterator().next();
+ }
+
+}