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;
12 import java.util.List;
14 import org.opendaylight.controller.config.facade.xml.util.Util;
15 import org.w3c.dom.Document;
17 public class SimpleUnionAttributeWritingStrategy extends SimpleAttributeWritingStrategy {
23 public SimpleUnionAttributeWritingStrategy(Document document, String key) {
27 protected Object preprocess(Object value) {
28 Util.checkType(value, Map.class);
29 Preconditions.checkArgument(((Map<?, ?>)value).size() == 1, "Unexpected number of values in %s, expected 1", value);
30 Object listOfStrings = ((Map<?, ?>) value).values().iterator().next();
31 Util.checkType(listOfStrings, List.class);
33 StringBuilder b = new StringBuilder();
34 for (Object character: (List<?>)listOfStrings) {
35 Util.checkType(character, String.class);