opendaylight/netconf/config-netconf-connector/src/main/java/org/opendaylight/controller/netconf/confignetconfconnector/mapping/attributes/fromxml/ObjectNameAttributeReadingStrategy.java

   1 /*
   2  * Copyright (c) 2013 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 package org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.fromxml;
   9
  10 import com.google.common.base.Preconditions;
  11 import org.opendaylight.controller.config.yangjmxgenerator.attribute.AttributeIfc;
  12 import org.opendaylight.controller.config.yangjmxgenerator.attribute.DependencyAttribute;
  13 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.mapping.ObjectNameAttributeMappingStrategy;
  14 import org.opendaylight.controller.netconf.util.xml.XmlElement;
  15 import org.opendaylight.controller.netconf.util.xml.XmlNetconfConstants;
  16
  17 import java.util.List;
  18 import java.util.Map;
  19
  20 public class ObjectNameAttributeReadingStrategy extends AbstractAttributeReadingStrategy<AttributeIfc> {
  21
  22     private static final Object PREFIX_SEPARATOR = ":";
  23
  24     public ObjectNameAttributeReadingStrategy(DependencyAttribute attributeIfc) {
  25         super(attributeIfc);
  26     }
  27
  28     @Override
  29     AttributeConfigElement readElementHook(List<XmlElement> configNodes) {
  30
  31         XmlElement firstChild = configNodes.get(0);
  32         Preconditions.checkState(configNodes.size() == 1, "This element should be present only once " + firstChild
  33                 + " but was " + configNodes.size());
  34
  35         Preconditions.checkNotNull(firstChild, "Element %s should be present", firstChild);
  36         return AttributeConfigElement.create(getAttributeIfc(), resolve(firstChild));
  37     }
  38
  39     private ObjectNameAttributeMappingStrategy.MappedDependency resolve(XmlElement firstChild) {
  40         XmlElement typeElement = firstChild.getOnlyChildElementWithSameNamespace(XmlNetconfConstants.TYPE_KEY);
  41         Map.Entry<String, String> prefixNamespace = typeElement.findNamespaceOfTextContent();
  42
  43         String serviceName = checkPrefixAndExtractServiceName(typeElement, prefixNamespace);
  44
  45         XmlElement nameElement = firstChild.getOnlyChildElementWithSameNamespace(XmlNetconfConstants.NAME_KEY);
  46         String dependencyName = nameElement.getTextContent();
  47
  48         return new ObjectNameAttributeMappingStrategy.MappedDependency(prefixNamespace.getValue(), serviceName,
  49                 dependencyName);
  50     }
  51
  52     public static String checkPrefixAndExtractServiceName(XmlElement typeElement, Map.Entry<String, String> prefixNamespace) {
  53         String serviceName = typeElement.getTextContent();
  54
  55         Preconditions.checkState(prefixNamespace.equals("") == false, "Service %s value not prefixed with namespace",
  56                 XmlNetconfConstants.TYPE_KEY);
  57         String prefix = prefixNamespace.getKey() + PREFIX_SEPARATOR;
  58         Preconditions.checkState(serviceName.startsWith(prefix),
  59                 "Service %s not correctly prefixed, expected %s, but was %s", XmlNetconfConstants.TYPE_KEY, prefix,
  60                 serviceName);
  61         serviceName = serviceName.substring(prefix.length());
  62         return serviceName;
  63     }
  64
  65 }