opendaylight/config/config-manager-facade-xml/src/main/java/org/opendaylight/controller/config/facade/xml/mapping/attributes/mapping/CompositeAttributeMappingStrategy.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.mapping;
  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 java.util.Set;
  16 import javax.management.openmbean.CompositeDataSupport;
  17 import javax.management.openmbean.CompositeType;
  18 import javax.management.openmbean.OpenType;
  19 import org.opendaylight.controller.config.facade.xml.util.Util;
  20
  21 public class CompositeAttributeMappingStrategy extends
  22         AbstractAttributeMappingStrategy<Map<String, Object>, CompositeType> {
  23
  24     private final Map<String, AttributeMappingStrategy<?, ? extends OpenType<?>>> innerStrategies;
  25     private final Map<String, String> jmxToJavaNameMapping;
  26
  27     public CompositeAttributeMappingStrategy(CompositeType compositeType,
  28             Map<String, AttributeMappingStrategy<?, ? extends OpenType<?>>> innerStrategies,
  29             Map<String, String> jmxToJavaNameMapping) {
  30         super(compositeType);
  31         this.innerStrategies = innerStrategies;
  32         this.jmxToJavaNameMapping = jmxToJavaNameMapping;
  33     }
  34
  35     @Override
  36     public Optional<Map<String, Object>> mapAttribute(Object value) {
  37         if (value == null){
  38             return Optional.absent();
  39         }
  40
  41         Util.checkType(value, CompositeDataSupport.class);
  42
  43         CompositeDataSupport compositeData = (CompositeDataSupport) value;
  44         CompositeType currentType = compositeData.getCompositeType();
  45         CompositeType expectedType = getOpenType();
  46
  47         Set<String> expectedCompositeTypeKeys = expectedType.keySet();
  48         Set<String> currentCompositeTypeKeys = currentType.keySet();
  49         Preconditions.checkArgument(expectedCompositeTypeKeys.equals(currentCompositeTypeKeys),
  50                 "Composite type mismatch, expected composite type with attributes " + expectedCompositeTypeKeys
  51                         + " but was " + currentCompositeTypeKeys);
  52
  53         Map<String, Object> retVal = Maps.newHashMap();
  54
  55         for (String jmxName : jmxToJavaNameMapping.keySet()) {
  56             Optional<?> mapped = mapInnerAttribute(compositeData, jmxName, expectedType.getDescription(jmxName));
  57             if(mapped.isPresent()){
  58                 retVal.put(jmxToJavaNameMapping.get(jmxName), mapped.get());
  59             }
  60         }
  61
  62         return Optional.of(retVal);
  63     }
  64
  65     protected Optional<?> mapInnerAttribute(CompositeDataSupport compositeData, String jmxName, String description) {
  66         Object innerValue = compositeData.get(jmxName);
  67
  68         AttributeMappingStrategy<?, ? extends OpenType<?>> attributeMappingStrategy = innerStrategies
  69                 .get(jmxName);
  70         return attributeMappingStrategy.mapAttribute(innerValue);
  71     }
  72
  73 }