opendaylight/netconf/config-netconf-connector/src/main/java/org/opendaylight/controller/netconf/confignetconfconnector/mapping/config/InstanceConfig.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
   9 package org.opendaylight.controller.netconf.confignetconfconnector.mapping.config;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.base.Preconditions;
  13 import com.google.common.collect.Lists;
  14 import com.google.common.collect.Maps;
  15 import org.opendaylight.controller.config.util.ConfigRegistryClient;
  16 import org.opendaylight.controller.config.yangjmxgenerator.RuntimeBeanEntry;
  17 import org.opendaylight.controller.config.yangjmxgenerator.attribute.AttributeIfc;
  18 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.fromxml.AttributeConfigElement;
  19 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.fromxml.AttributeReadingStrategy;
  20 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.fromxml.ObjectXmlReader;
  21 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.mapping.AttributeMappingStrategy;
  22 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.mapping.ObjectMapper;
  23 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.resolving.AttributeResolvingStrategy;
  24 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.resolving.ObjectResolver;
  25 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.toxml.AttributeWritingStrategy;
  26 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.toxml.ObjectXmlWriter;
  27 import org.opendaylight.controller.netconf.confignetconfconnector.operations.editconfig.EditStrategyType;
  28 import org.opendaylight.controller.netconf.util.xml.XmlElement;
  29 import org.opendaylight.controller.netconf.util.xml.XmlNetconfConstants;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32 import org.w3c.dom.Document;
  33 import org.w3c.dom.Element;
  34
  35 import javax.management.ObjectName;
  36 import javax.management.openmbean.OpenType;
  37 import java.util.List;
  38 import java.util.Map;
  39 import java.util.Map.Entry;
  40
  41 public final class InstanceConfig {
  42     private static final Logger logger = LoggerFactory.getLogger(InstanceConfig.class);
  43
  44     private final Map<String, AttributeIfc> yangToAttrConfig;
  45     private final Map<String, AttributeIfc> jmxToAttrConfig;
  46     private final ConfigRegistryClient configRegistryClient;
  47
  48     public InstanceConfig(ConfigRegistryClient configRegistryClient, Map<String, AttributeIfc> yangNamesToAttributes) {
  49         this.yangToAttrConfig = yangNamesToAttributes;
  50         this.jmxToAttrConfig = reverseMap(yangNamesToAttributes);
  51         this.configRegistryClient = configRegistryClient;
  52     }
  53
  54     private Map<String, Object> getMappedConfiguration(ObjectName on, Services depTracker) {
  55
  56         // TODO make field, mappingStrategies can be instantiated only once
  57         Map<String, AttributeMappingStrategy<?, ? extends OpenType<?>>> mappingStrategies = new ObjectMapper(depTracker)
  58                 .prepareMapping(jmxToAttrConfig);
  59
  60         Map<String, Object> toXml = Maps.newHashMap();
  61
  62         for (Entry<String, AttributeIfc> configDefEntry : jmxToAttrConfig.entrySet()) {
  63
  64             // Skip children runtime beans as they are mapped by InstanceRuntime
  65             if (configDefEntry.getValue() instanceof RuntimeBeanEntry)
  66                 continue;
  67
  68             Object value = configRegistryClient.getAttributeCurrentValue(on, configDefEntry.getKey());
  69             try {
  70                 AttributeMappingStrategy<?, ? extends OpenType<?>> attributeMappingStrategy = mappingStrategies
  71                         .get(configDefEntry.getKey());
  72                 Optional<?> a = attributeMappingStrategy.mapAttribute(value);
  73                 if (a.isPresent() == false)
  74                     continue;
  75
  76                 toXml.put(configDefEntry.getValue().getAttributeYangName(), a.get());
  77             } catch (Exception e) {
  78                 throw new IllegalStateException("Unable to map value " + value + " to attribute "
  79                         + configDefEntry.getKey(), e);
  80             }
  81         }
  82
  83         return toXml;
  84     }
  85
  86     public Element toXml(ObjectName on, Services depTracker, String namespace, Document document, Element rootElement) {
  87
  88         Element cfgElement = rootElement;
  89
  90         Map<String, AttributeWritingStrategy> strats = new ObjectXmlWriter().prepareWriting(yangToAttrConfig, document);
  91
  92         Map<String, Object> mappedConfig = getMappedConfiguration(on, depTracker);
  93
  94         for (Entry<String, ?> mappingEntry : mappedConfig.entrySet()) {
  95             try {
  96                 strats.get(mappingEntry.getKey()).writeElement(cfgElement, namespace, mappingEntry.getValue());
  97             } catch (Exception e) {
  98                 throw new IllegalStateException("Unable to write value " + mappingEntry.getValue() + " for attribute "
  99                         + mappingEntry.getValue(), e);
 100             }
 101         }
 102
 103         return cfgElement;
 104     }
 105
 106     private void resolveConfiguration(InstanceConfigElementResolved mappedConfig, Services depTracker) {
 107
 108         // TODO make field, resolvingStrategies can be instantiated only once
 109         Map<String, AttributeResolvingStrategy<?, ? extends OpenType<?>>> resolvingStrategies = new ObjectResolver(
 110                 depTracker).prepareResolving(yangToAttrConfig);
 111
 112         for (Entry<String, AttributeConfigElement> configDefEntry : mappedConfig.getConfiguration().entrySet()) {
 113             AttributeConfigElement value = configDefEntry.getValue();
 114             String attributeName = configDefEntry.getKey();
 115             try {
 116                 AttributeResolvingStrategy<?, ? extends OpenType<?>> attributeResolvingStrategy = resolvingStrategies
 117                         .get(attributeName);
 118                 logger.trace("Trying to set value {} of attribute {} with {}", value, attributeName, attributeResolvingStrategy);
 119
 120                 value.resolveValue(attributeResolvingStrategy, attributeName);
 121                 value.setJmxName(
 122                         yangToAttrConfig.get(attributeName).getUpperCaseCammelCase());
 123             } catch (Exception e) {
 124                 throw new IllegalStateException("Unable to resolve value " + value
 125                         + " to attribute " + attributeName, e);
 126             }
 127         }
 128     }
 129
 130     public InstanceConfigElementResolved fromXml(XmlElement moduleElement, Services services, String moduleNamespace,
 131                                                  EditStrategyType defaultStrategy) {
 132         Map<String, AttributeConfigElement> retVal = Maps.newHashMap();
 133
 134         Map<String, AttributeReadingStrategy> strats = new ObjectXmlReader().prepareReading(yangToAttrConfig);
 135         List<XmlElement> recognisedChildren = Lists.newArrayList();
 136
 137         XmlElement type = moduleElement.getOnlyChildElementWithSameNamespace(XmlNetconfConstants.TYPE_KEY);
 138         XmlElement name = moduleElement.getOnlyChildElementWithSameNamespace(XmlNetconfConstants.NAME_KEY);
 139         List<XmlElement> typeAndName = Lists.newArrayList(type, name);
 140
 141         for (Entry<String, AttributeReadingStrategy> readStratEntry : strats.entrySet()) {
 142             List<XmlElement> configNodes = getConfigNodes(moduleElement, moduleNamespace, readStratEntry.getKey(),
 143                     recognisedChildren, typeAndName);
 144             AttributeConfigElement readElement = readStratEntry.getValue().readElement(configNodes);
 145             retVal.put(readStratEntry.getKey(), readElement);
 146         }
 147
 148         recognisedChildren.addAll(typeAndName);
 149         moduleElement.checkUnrecognisedElements(recognisedChildren);
 150
 151         // TODO: add check for conflicts between global and local edit strategy
 152         String perInstanceEditStrategy = moduleElement.getAttribute(XmlNetconfConstants.OPERATION_ATTR_KEY,
 153                 XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
 154
 155         InstanceConfigElementResolved instanceConfigElementResolved = perInstanceEditStrategy.equals("") ? new InstanceConfigElementResolved(
 156                 retVal, defaultStrategy) : new InstanceConfigElementResolved(perInstanceEditStrategy, retVal, defaultStrategy);
 157
 158         resolveConfiguration(instanceConfigElementResolved, services);
 159         return instanceConfigElementResolved;
 160     }
 161
 162     private List<XmlElement> getConfigNodes(XmlElement moduleElement, String moduleNamespace, String name,
 163             List<XmlElement> recognisedChildren, List<XmlElement> typeAndName) {
 164         List<XmlElement> foundConfigNodes = moduleElement.getChildElementsWithinNamespace(name, moduleNamespace);
 165         if (foundConfigNodes.isEmpty()) {
 166             logger.debug("No config nodes {}:{} found in {}", moduleNamespace, name, moduleElement);
 167             logger.debug("Trying lookup of config nodes without specified namespace");
 168             foundConfigNodes = moduleElement.getChildElementsWithinNamespace(name,
 169                     XmlNetconfConstants.URN_OPENDAYLIGHT_PARAMS_XML_NS_YANG_CONTROLLER_CONFIG);
 170             // In case module type or name element is not present in config it
 171             // would be matched with config type or name
 172             // We need to remove config type and name from available module
 173             // config elements
 174             foundConfigNodes.removeAll(typeAndName);
 175             logger.debug("Found {} config nodes {} without specified namespace in {}", foundConfigNodes.size(), name,
 176                     moduleElement);
 177         } else {
 178             List<XmlElement> foundWithoutNamespaceNodes = moduleElement.getChildElementsWithinNamespace(name,
 179                     XmlNetconfConstants.URN_OPENDAYLIGHT_PARAMS_XML_NS_YANG_CONTROLLER_CONFIG);
 180             foundWithoutNamespaceNodes.removeAll(typeAndName);
 181             Preconditions.checkState(foundWithoutNamespaceNodes.isEmpty(),
 182                     "Element %s present multiple times with different namespaces: %s, %s", name, foundConfigNodes,
 183                     foundWithoutNamespaceNodes);
 184         }
 185
 186         recognisedChildren.addAll(foundConfigNodes);
 187         return foundConfigNodes;
 188     }
 189
 190     private static Map<String, AttributeIfc> reverseMap(Map<String, AttributeIfc> yangNameToAttr) {
 191         Map<String, AttributeIfc> reversednameToAtr = Maps.newHashMap();
 192
 193         for (Entry<String, AttributeIfc> entry : yangNameToAttr.entrySet()) {
 194             reversednameToAtr.put(entry.getValue().getUpperCaseCammelCase(), entry.getValue());
 195         }
 196
 197         return reversednameToAtr;
 198     }
 199
 200 }