opendaylight/config/config-manager-facade-xml/src/main/java/org/opendaylight/controller/config/facade/xml/mapping/attributes/resolving/CompositeAttributeResolvingStrategy.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.resolving;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.base.Preconditions;
  13 import com.google.common.collect.Maps;
  14 import java.util.Map;
  15 import javax.management.openmbean.CompositeDataSupport;
  16 import javax.management.openmbean.CompositeType;
  17 import javax.management.openmbean.OpenDataException;
  18 import javax.management.openmbean.OpenType;
  19 import javax.management.openmbean.SimpleType;
  20 import org.opendaylight.controller.config.facade.xml.util.Util;
  21 import org.opendaylight.controller.config.util.xml.DocumentedException;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 class CompositeAttributeResolvingStrategy extends
  26         AbstractAttributeResolvingStrategy<CompositeDataSupport, CompositeType> {
  27     private final Map<String, AttributeResolvingStrategy<?, ? extends OpenType<?>>> innerTypes;
  28     private final Map<String, String> yangToJavaAttrMapping;
  29
  30     private static final Logger LOG = LoggerFactory.getLogger(CompositeAttributeResolvingStrategy.class);
  31
  32     CompositeAttributeResolvingStrategy(final Map<String, AttributeResolvingStrategy<?, ? extends OpenType<?>>> innerTypes,
  33             final CompositeType openType, final Map<String, String> yangToJavaAttrMapping) {
  34         super(openType);
  35         this.innerTypes = innerTypes;
  36         this.yangToJavaAttrMapping = yangToJavaAttrMapping;
  37     }
  38
  39     @Override
  40     public String toString() {
  41         return "ResolvedCompositeAttribute [" + innerTypes + "]";
  42     }
  43
  44     @Override
  45     public Optional<CompositeDataSupport> parseAttribute(final String attrName, final Object value) throws DocumentedException {
  46
  47         if (value == null) {
  48             return Optional.absent();
  49         }
  50
  51         Util.checkType(value, Map.class);
  52         Map<?, ?> valueMap = (Map<?, ?>) value;
  53         valueMap = preprocessValueMap(valueMap);
  54
  55         Map<String, Object> items = Maps.newHashMap();
  56         Map<String, OpenType<?>> openTypes = Maps.newHashMap();
  57
  58         final String[] names = new String[getOpenType().keySet().size()];
  59         final String[] descriptions = new String[getOpenType().keySet().size()];
  60         OpenType<?>[] itemTypes = new OpenType[names.length];
  61         int i = 0;
  62
  63         for (Object innerAttrName : innerTypes.keySet()) {
  64             Preconditions.checkState(innerAttrName instanceof String, "Attribute name must be string");
  65             String innerAttrNameStr = (String) innerAttrName;
  66
  67             AttributeResolvingStrategy<?, ? extends OpenType<?>> attributeResolvingStrategy = innerTypes
  68                     .get(innerAttrName);
  69
  70             Object valueToParse = valueMap.get(innerAttrName);
  71
  72             Optional<?> parsedInnerValue = attributeResolvingStrategy.parseAttribute(innerAttrNameStr, valueToParse);
  73
  74             if(attributeResolvingStrategy instanceof EnumAttributeResolvingStrategy) {
  75                 // Open type for enum contain the class name necessary for its resolution, however in a DTO
  76                 // the open type need to be just SimpleType.STRING so that JMX is happy
  77                 // After the enum attribute is resolved, change its open type back to STRING
  78                 openTypes.put(innerAttrNameStr, SimpleType.STRING);
  79             } else {
  80                 openTypes.put(innerAttrNameStr, attributeResolvingStrategy.getOpenType());
  81             }
  82
  83             items.put(yangToJavaAttrMapping.get(innerAttrNameStr),
  84                     parsedInnerValue.isPresent() ? parsedInnerValue.get() : null);
  85
  86             // fill names + item types in order to reconstruct the open type for current attribute
  87             names[i] = yangToJavaAttrMapping.get(innerAttrNameStr);
  88             descriptions[i] = getOpenType().getDescription(names[i]);
  89             itemTypes[i] = openTypes.get(innerAttrNameStr);
  90             i++;
  91         }
  92
  93         CompositeDataSupport parsedValue;
  94         try {
  95             LOG.trace("Attribute {} with open type {}. Reconstructing open type.", attrName, getOpenType());
  96             setOpenType(new CompositeType(getOpenType().getTypeName(), getOpenType().getDescription(), names, descriptions, itemTypes));
  97             LOG.debug("Attribute {}. Open type reconstructed to {}", attrName, getOpenType(), getOpenType());
  98             parsedValue = new CompositeDataSupport(getOpenType(), items);
  99         } catch (final OpenDataException e) {
 100             throw new IllegalStateException("An error occurred during restoration of composite type " + this
 101                     + " for attribute " + attrName + " from value " + value, e);
 102         }
 103
 104         LOG.debug("Attribute {} : {} parsed to type {} as {}", attrName, value, getOpenType(), parsedValue);
 105
 106         return Optional.of(parsedValue);
 107     }
 108
 109
 110     protected Map<?, ?> preprocessValueMap(final Map<?, ?> valueMap) {
 111         return valueMap;
 112     }
 113
 114
 115 }