opendaylight/config/config-manager-facade-xml/src/main/java/org/opendaylight/controller/config/facade/xml/mapping/attributes/fromxml/CompositeAttributeReadingStrategy.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8
   9 package org.opendaylight.controller.config.facade.xml.mapping.attributes.fromxml;
  10
  11 import com.google.common.base.Preconditions;
  12 import com.google.common.base.Strings;
  13 import com.google.common.collect.Lists;
  14 import com.google.common.collect.Maps;
  15 import java.util.List;
  16 import java.util.Map;
  17 import java.util.Map.Entry;
  18 import org.opendaylight.controller.config.facade.xml.strategy.EditStrategyType;
  19 import org.opendaylight.controller.config.util.xml.DocumentedException;
  20 import org.opendaylight.controller.config.util.xml.XmlElement;
  21 import org.opendaylight.controller.config.util.xml.XmlMappingConstants;
  22
  23 public class CompositeAttributeReadingStrategy extends AbstractAttributeReadingStrategy {
  24
  25     private final Map<String, AttributeReadingStrategy> innerStrategies;
  26
  27     public CompositeAttributeReadingStrategy(String nullableDefault,
  28             Map<String, AttributeReadingStrategy> innerStrategies) {
  29         super(nullableDefault);
  30         this.innerStrategies = innerStrategies;
  31     }
  32
  33     @Override
  34     AttributeConfigElement readElementHook(List<XmlElement> configNodes) throws DocumentedException {
  35
  36         Preconditions.checkState(configNodes.size() == 1, "This element should be present only once %s", configNodes);
  37
  38         XmlElement complexElement = configNodes.get(0);
  39
  40         Map<String, Object> innerMap = Maps.newHashMap();
  41
  42         List<XmlElement> recognisedChildren = Lists.newArrayList();
  43         for (Entry<String, AttributeReadingStrategy> innerAttrEntry : innerStrategies.entrySet()) {
  44             List<XmlElement> childItem = complexElement.getChildElementsWithSameNamespace(
  45                     innerAttrEntry.getKey());
  46             recognisedChildren.addAll(childItem);
  47
  48             AttributeConfigElement resolvedInner = innerAttrEntry.getValue().readElement(childItem);
  49
  50             Object value = resolvedInner.getValue();
  51             if(value == null) {
  52                 value = resolvedInner.getDefaultValue();
  53             }
  54
  55             innerMap.put(innerAttrEntry.getKey(), value);
  56         }
  57
  58         complexElement.checkUnrecognisedElements(recognisedChildren);
  59
  60         String perInstanceEditStrategy = complexElement.getAttribute(XmlMappingConstants.OPERATION_ATTR_KEY,
  61                 XmlMappingConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
  62
  63         return Strings.isNullOrEmpty(perInstanceEditStrategy) ? AttributeConfigElement.create(getNullableDefault(), innerMap) :
  64                 AttributeConfigElement.create(getNullableDefault(), innerMap, EditStrategyType.valueOf(perInstanceEditStrategy));
  65     }
  66
  67 }