--- /dev/null
+/*
+ * Copyright (c) 2015 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.config.facade.xml.mapping.attributes.toxml;
+
+import com.google.common.base.Optional;
+import java.util.Map;
+import java.util.Map.Entry;
+import org.opendaylight.controller.config.facade.xml.util.Util;
+import org.opendaylight.controller.config.util.xml.XmlUtil;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+public class CompositeAttributeWritingStrategy implements AttributeWritingStrategy {
+
+ private final String key;
+ private final Document document;
+ private final Map<String, AttributeWritingStrategy> innerStrats;
+
+ public CompositeAttributeWritingStrategy(Document document, String key,
+ Map<String, AttributeWritingStrategy> innerStrats) {
+ this.document = document;
+ this.key = key;
+ this.innerStrats = innerStrats;
+ }
+
+ @Override
+ public void writeElement(Element parentElement, String namespace, Object value) {
+ Util.checkType(value, Map.class);
+
+ Element innerNode = XmlUtil.createElement(document, key, Optional.of(namespace));
+
+ Map<?, ?> map = (Map<?, ?>) value;
+
+ for (Entry<?, ?> innerObjectEntry : map.entrySet()) {
+ Util.checkType(innerObjectEntry.getKey(), String.class);
+
+ String innerKey = (String) innerObjectEntry.getKey();
+ Object innerValue = innerObjectEntry.getValue();
+
+ innerStrats.get(innerKey).writeElement(innerNode, namespace, innerValue);
+ }
+ parentElement.appendChild(innerNode);
+ }
+
+ public String getKey() {
+ return key;
+ }
+
+ public Document getDocument() {
+ return document;
+ }
+
+ public Map<String, AttributeWritingStrategy> getInnerStrats() {
+ return innerStrats;
+ }
+}