-/*
- * Copyright (c) 2015, 2017 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.fromxml;
-
-import java.util.List;
-import org.opendaylight.controller.config.util.xml.DocumentedException;
-import org.opendaylight.controller.config.util.xml.XmlElement;
-
-public abstract class AbstractAttributeReadingStrategy implements AttributeReadingStrategy {
-
- private final String nullableDefault;
-
- public AbstractAttributeReadingStrategy(final String nullableDefault) {
- this.nullableDefault = nullableDefault;
- }
-
- public String getNullableDefault() {
- return nullableDefault;
- }
-
- @Override
- public AttributeConfigElement readElement(final List<XmlElement> configNodes) throws DocumentedException {
- if (configNodes.isEmpty()) {
- return AttributeConfigElement.createNullValue(postprocessNullableDefault(nullableDefault));
- }
- return readElementHook(configNodes);
- }
-
- abstract AttributeConfigElement readElementHook(List<XmlElement> configNodes) throws DocumentedException;
-
- @SuppressWarnings("checkstyle:hiddenField")
- protected Object postprocessNullableDefault(final String nullableDefault) {
- return nullableDefault;
- }
-}