gerrit.onap Code Review - ccsdk/features.git/blob

   1 /*******************************************************************************
   2  * ============LICENSE_START========================================================================
   3  * ONAP : ccsdk feature sdnr wt
   4  * =================================================================================================
   5  * Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. All rights reserved.
   6  * =================================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   8  * in compliance with the License. You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software distributed under the License
  13  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  14  * or implied. See the License for the specific language governing permissions and limitations under
  15  * the License.
  16  * ============LICENSE_END==========================================================================
  17  ******************************************************************************/
  18 package org.onap.ccsdk.features.sdnr.wt.yangtools;
  19
  20 import java.io.IOException;
  21 import javax.annotation.Nullable;
  22
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.Credentials;
  24 import org.opendaylight.yangtools.concepts.Builder;
  25 import org.opendaylight.yangtools.yang.binding.DataObject;
  26 import org.osgi.framework.Bundle;
  27 import org.osgi.framework.BundleContext;
  28 import org.osgi.framework.FrameworkUtil;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 import com.fasterxml.jackson.annotation.JsonInclude.Include;
  33 import com.fasterxml.jackson.core.JsonGenerator;
  34 import com.fasterxml.jackson.core.JsonProcessingException;
  35 import com.fasterxml.jackson.databind.DeserializationFeature;
  36 import com.fasterxml.jackson.databind.ObjectMapper;
  37 import com.fasterxml.jackson.databind.PropertyNamingStrategy;
  38 import com.fasterxml.jackson.databind.SerializerProvider;
  39 import com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder;
  40 import com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder.Value;
  41 import com.fasterxml.jackson.databind.introspect.AnnotatedClass;
  42 import com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector;
  43 import com.fasterxml.jackson.databind.module.SimpleModule;
  44 import com.fasterxml.jackson.databind.ser.std.StdSerializer;
  45
  46 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.DateAndTime;
  47 /**
  48  * YangToolsMapper is a specific Jackson mapper configuration for opendaylight yangtools serialization or deserialization of DataObject to/from JSON
  49  * TODO ChoiceIn and Credentials deserialization only for LoginPasswordBuilder
  50  */
  51 public class YangToolsMapper extends ObjectMapper {
  52
  53         private final Logger LOG = LoggerFactory.getLogger(YangToolsMapper.class);
  54         private static final long serialVersionUID = 1L;
  55         private static BundleContext context;
  56
  57         public YangToolsMapper() {
  58                 super();
  59                 configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
  60                 setPropertyNamingStrategy(PropertyNamingStrategy.KEBAB_CASE);
  61                 setSerializationInclusion(Include.NON_NULL);
  62                 setAnnotationIntrospector(new YangToolsBuilderAnnotationIntrospector());
  63                 SimpleModule dateAndTimeSerializerModule = new SimpleModule();
  64                 dateAndTimeSerializerModule.addSerializer(DateAndTime.class,new CustomDateAndTimeSerializer());
  65                 registerModule(dateAndTimeSerializerModule );
  66                 Bundle bundle = FrameworkUtil.getBundle(YangToolsMapper.class);
  67                 context = bundle != null ? bundle.getBundleContext() : null;
  68         }
  69
  70         @Override
  71         public String writeValueAsString(Object value) throws JsonProcessingException {
  72                 // TODO Auto-generated method stub
  73                 return super.writeValueAsString(value);
  74         }
  75         /**
  76          * Get Builder object for yang tools interface.
  77          * @param <T> yang-tools base datatype
  78          * @param clazz class with interface.
  79          * @return builder for interface or null if not existing
  80          */
  81         @SuppressWarnings("unchecked")
  82         public @Nullable <T extends DataObject> Builder<T> getBuilder(Class<T> clazz) {
  83                 String builder = clazz.getName() + "Builder";
  84                 try {
  85                         Class<?> clazzBuilder = findClass(builder);
  86                         return (Builder<T>) clazzBuilder.newInstance();
  87                 } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
  88                         LOG.debug("Problem ", e);
  89                         return null;
  90                 }
  91         }
  92
  93         /**
  94          * Callback for handling mapping failures.
  95          * @return
  96          */
  97         public int getMappingFailures() {
  98                 return 0;
  99         }
 100
 101         /**
 102          * Provide mapping of string to attribute names, generated by yang-tools.
 103          * "netconf-id" converted to "_netconfId"
 104          * @param name with attribute name, not null or empty
 105          * @return converted string or null if name was empty or null
 106          */
 107         public @Nullable static String toCamelCaseAttributeName(final String name) {
 108                 if (name == null || name.isEmpty())
 109                         return null;
 110
 111                 final StringBuilder ret = new StringBuilder(name.length());
 112                 if (!name.startsWith("_"))
 113                         ret.append('_');
 114                 int start = 0;
 115                 for (final String word : name.split("-")) {
 116                         if (!word.isEmpty()) {
 117                                 if (start++ == 0) {
 118                                         ret.append(Character.toLowerCase(word.charAt(0)));
 119                                 } else {
 120                                         ret.append(Character.toUpperCase(word.charAt(0)));
 121                                 }
 122                                 ret.append(word.substring(1));
 123                         }
 124                 }
 125                 return ret.toString();
 126         }
 127
 128         /**
 129          * Adapted Builder callbacks
 130          */
 131         private static class YangToolsBuilderAnnotationIntrospector extends JacksonAnnotationIntrospector {
 132                 private static final long serialVersionUID = 1L;
 133
 134                 @Override
 135         public Class<?> findPOJOBuilder(AnnotatedClass ac) {
 136                         try {
 137                         String builder = null;
 138                         if (ac.getRawType().equals(Credentials.class)) {
 139                                 builder = "org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.LoginPasswordBuilder";
 140                                 //System.out.println(DataContainer.class.isAssignableFrom(ac.getRawType()));
 141                                 //System.out.println(ChoiceIn.class.isAssignableFrom(ac.getRawType()));
 142
 143                         }
 144                         else if(ac.getRawType().equals(DateAndTime.class)) {
 145                                 builder = DateAndTimeBuilder.class.getName();
 146                         }
 147
 148                         else {
 149                                 if (ac.getRawType().isInterface())      {
 150                                         builder = ac.getName()+"Builder";
 151                                 }
 152                         }
 153                         if (builder != null) {
 154                                 //System.out.println("XX1: "+ac.getRawType());
 155                                 //System.out.println("XX2: "+builder);
 156                                 //Class<?> innerBuilder = Class.forName(builder);
 157                                 Class<?> innerBuilder = findClass(builder);
 158                             //System.out.println("Builder found: "+ innerBuilder);
 159                             return innerBuilder;
 160                         }
 161                 } catch( ClassNotFoundException e ) {
 162                     // No problem .. try next
 163                 }
 164            return super.findPOJOBuilder(ac);
 165         }
 166
 167                 @Override
 168                 public Value findPOJOBuilderConfig(AnnotatedClass ac) {
 169                         if (ac.hasAnnotation(JsonPOJOBuilder.class)) {
 170                                 return super.findPOJOBuilderConfig(ac);
 171                         }
 172                         return new JsonPOJOBuilder.Value("build", "set");
 173                 }
 174         }
 175
 176         private static Class<?> findClass(String name) throws ClassNotFoundException {
 177                 // Try to find in other bundles
 178                 if (context != null) {
 179                         //OSGi environment
 180                         for (Bundle b : context.getBundles()) {
 181                                 try {
 182                                         return b.loadClass(name);
 183                                 } catch (ClassNotFoundException e) {
 184                                         // No problem, this bundle doesn't have the class
 185                                 }
 186                         }
 187                         throw new ClassNotFoundException("Can not find Class in OSGi context.");
 188                 } else {
 189                         return Class.forName(name);
 190                 }
 191             // not found in any bundle
 192         }
 193         public static class DateAndTimeBuilder{
 194
 195                 private final String _value;
 196
 197                 public DateAndTimeBuilder(String v) {
 198                         this._value= v;
 199                 }
 200
 201                 public DateAndTime build() {
 202                         return new DateAndTime(_value);
 203                 }
 204
 205         }
 206         public static class CustomDateAndTimeSerializer extends StdSerializer<DateAndTime>{
 207
 208                 /**
 209                  *
 210                  */
 211                 private static final long serialVersionUID = 1L;
 212
 213                 public CustomDateAndTimeSerializer() {
 214                         this(null);
 215                 }
 216                 protected CustomDateAndTimeSerializer(Class<DateAndTime> t) {
 217                         super(t);
 218                 }
 219
 220                 @Override
 221                 public void serialize(DateAndTime value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
 222                         gen.writeString(value.getValue());
 223                 }
 224
 225         }
 226 }