Beispiel #1
0
  //  @Override
  public JsonSerializer<?> createContextual(SerializerProvider provider, BeanProperty property)
      throws JsonMappingException {
    /* 29-Sep-2012, tatu: Actually, we need to do much more contextual
     *    checking here since we finally know for sure the property,
     *    and it may have overrides
     */
    JsonSerializer<?> ser = null;
    JsonSerializer<?> keySer = null;

    // First: if we have a property, may have property-annotation overrides
    if (property != null) {
      AnnotatedMember m = property.getMember();
      if (m != null) {
        Object serDef;
        final AnnotationIntrospector intr = provider.getAnnotationIntrospector();
        serDef = intr.findKeySerializer(m);
        if (serDef != null) {
          keySer = provider.serializerInstance(m, serDef);
        }
        serDef = intr.findContentSerializer(m);
        if (serDef != null) {
          ser = provider.serializerInstance(m, serDef);
        }
      }
    }
    if (ser == null) {
      ser = _valueSerializer;
    }
    if (ser == null) {
      // 30-Sep-2012, tatu: One more thing -- if explicit content type is annotated,
      //   we can consider it a static case as well.
      if (_valueTypeIsStatic || hasContentTypeAnnotation(provider, property)) {
        ser = provider.findValueSerializer(_valueType, property);
      }
    } else if (ser instanceof ContextualSerializer) {
      ser = ((ContextualSerializer) ser).createContextual(provider, property);
    }
    if (keySer == null) {
      keySer = _keySerializer;
    }
    if (keySer == null) {
      keySer = provider.findKeySerializer(_keyType, property);
    } else if (keySer instanceof ContextualSerializer) {
      keySer = ((ContextualSerializer) keySer).createContextual(provider, property);
    }
    HashSet<String> ignored = this._ignoredEntries;
    AnnotationIntrospector intr = provider.getAnnotationIntrospector();
    if (intr != null && property != null) {
      String[] moreToIgnore = intr.findPropertiesToIgnore(property.getMember());
      if (moreToIgnore != null) {
        ignored = (ignored == null) ? new HashSet<String>() : new HashSet<String>(ignored);
        for (String str : moreToIgnore) {
          ignored.add(str);
        }
      }
    }
    return withResolved(property, keySer, ser, ignored);
  }
  /**
   * Method called to figure out settable properties for the bean deserializer to use.
   *
   * <p>Note: designed to be overridable, and effort is made to keep interface similar between
   * versions.
   */
  protected void addBeanProps(
      DeserializationContext ctxt, BeanDescription beanDesc, BeanDeserializerBuilder builder)
      throws JsonMappingException {
    final SettableBeanProperty[] creatorProps =
        builder.getValueInstantiator().getFromObjectArguments(ctxt.getConfig());

    // Things specified as "ok to ignore"? [JACKSON-77]
    AnnotationIntrospector intr = ctxt.getAnnotationIntrospector();
    boolean ignoreAny = false;
    {
      Boolean B = intr.findIgnoreUnknownProperties(beanDesc.getClassInfo());
      if (B != null) {
        ignoreAny = B.booleanValue();
        builder.setIgnoreUnknownProperties(ignoreAny);
      }
    }
    // Or explicit/implicit definitions?
    Set<String> ignored =
        ArrayBuilders.arrayToSet(intr.findPropertiesToIgnore(beanDesc.getClassInfo()));
    for (String propName : ignored) {
      builder.addIgnorable(propName);
    }
    // Also, do we have a fallback "any" setter?
    AnnotatedMethod anySetter = beanDesc.findAnySetter();
    if (anySetter != null) {
      builder.setAnySetter(constructAnySetter(ctxt, beanDesc, anySetter));
    }
    // NOTE: we do NOT add @JsonIgnore'd properties into blocked ones if there's any setter
    // Implicit ones via @JsonIgnore and equivalent?
    if (anySetter == null) {
      Collection<String> ignored2 = beanDesc.getIgnoredPropertyNames();
      if (ignored2 != null) {
        for (String propName : ignored2) {
          // allow ignoral of similarly named JSON property, but do not force;
          // latter means NOT adding this to 'ignored':
          builder.addIgnorable(propName);
        }
      }
    }
    final boolean useGettersAsSetters =
        (ctxt.isEnabled(MapperFeature.USE_GETTERS_AS_SETTERS)
            && ctxt.isEnabled(MapperFeature.AUTO_DETECT_GETTERS));

    // Ok: let's then filter out property definitions
    List<BeanPropertyDefinition> propDefs =
        filterBeanProps(ctxt, beanDesc, builder, beanDesc.findProperties(), ignored);

    // After which we can let custom code change the set
    if (_factoryConfig.hasDeserializerModifiers()) {
      for (BeanDeserializerModifier mod : _factoryConfig.deserializerModifiers()) {
        propDefs = mod.updateProperties(ctxt.getConfig(), beanDesc, propDefs);
      }
    }

    // At which point we still have all kinds of properties; not all with mutators:
    for (BeanPropertyDefinition propDef : propDefs) {
      SettableBeanProperty prop = null;
      if (propDef.hasConstructorParameter()) {
        /* [JACKSON-700] If property is passed via constructor parameter, we must
         *   handle things in special way. Not sure what is the most optimal way...
         *   for now, let's just call a (new) method in builder, which does nothing.
         */
        // but let's call a method just to allow custom builders to be aware...
        final String name = propDef.getName();
        for (SettableBeanProperty cp : creatorProps) {
          if (name.equals(cp.getName())) {
            prop = cp;
            break;
          }
        }
        if (prop == null) {
          throw ctxt.mappingException("Could not find creator property with name '" + name + "'");
        }
        builder.addCreatorProperty(prop);
        continue;
      }
      if (propDef.hasSetter()) {
        Type propertyType = propDef.getSetter().getGenericParameterType(0);
        prop = constructSettableProperty(ctxt, beanDesc, propDef, propertyType);
      } else if (propDef.hasField()) {
        Type propertyType = propDef.getField().getGenericType();
        prop = constructSettableProperty(ctxt, beanDesc, propDef, propertyType);
      } else if (useGettersAsSetters && propDef.hasGetter()) {
        /* As per [JACKSON-88], may also need to consider getters
         * for Map/Collection properties; but with lowest precedence
         */
        AnnotatedMethod getter = propDef.getGetter();
        // should only consider Collections and Maps, for now?
        Class<?> rawPropertyType = getter.getRawType();
        if (Collection.class.isAssignableFrom(rawPropertyType)
            || Map.class.isAssignableFrom(rawPropertyType)) {
          prop = constructSetterlessProperty(ctxt, beanDesc, propDef);
        }
      }
      if (prop != null) {
        Class<?>[] views = propDef.findViews();
        if (views == null) {
          // one more twist: if default inclusion disabled, need to force empty set of views
          if (!ctxt.isEnabled(MapperFeature.DEFAULT_VIEW_INCLUSION)) {
            views = NO_VIEWS;
          }
        }
        // one more thing before adding to builder: copy any metadata
        prop.setViews(views);
        builder.addProperty(prop);
      }
    }
  }