2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.controller.config.facade.xml.mapping.attributes.toxml;
11 import com.google.common.base.Preconditions;
13 import org.opendaylight.controller.config.facade.xml.util.Util;
14 import org.w3c.dom.Document;
16 public class SimpleCompositeAttributeWritingStrategy extends SimpleAttributeWritingStrategy {
22 public SimpleCompositeAttributeWritingStrategy(final Document document, final String key) {
26 protected Object preprocess(final Object value) {
27 Util.checkType(value, Map.class);
28 Preconditions.checkArgument(((Map<?, ?>)value).size() == 1, "Unexpected number of values in %s, expected 1", value);
29 return ((Map<?, ?>)value).values().iterator().next();