Пример #1
0
  protected void _writeNullKeyedEntry(JsonGenerator gen, SerializerProvider provider, Object value)
      throws IOException {
    JsonSerializer<Object> keySerializer = provider.findNullKeySerializer(_keyType, _property);
    JsonSerializer<Object> valueSer;
    if (value == null) {
      if (_suppressNulls) {
        return;
      }
      valueSer = provider.getDefaultNullValueSerializer();
    } else {
      valueSer = _valueSerializer;
      if (valueSer == null) {
        valueSer = _findSerializer(provider, value);
      }
      if (_suppressableValue == MARKER_FOR_EMPTY) {
        if (valueSer.isEmpty(provider, value)) {
          return;
        }
      } else if ((_suppressableValue != null) && (_suppressableValue.equals(value))) {
        return;
      }
    }

    try {
      keySerializer.serialize(null, gen, provider);
      valueSer.serialize(value, gen, provider);
    } catch (Exception e) {
      wrapAndThrow(provider, e, value, "");
    }
  }
Пример #2
0
  /**
   * Method called to serialize fields, when the value type is statically known, so that value
   * serializer is passed and does not need to be fetched from provider.
   */
  public void serializeFieldsUsing(
      Map<?, ?> value, JsonGenerator gen, SerializerProvider provider, JsonSerializer<Object> ser)
      throws IOException {
    final JsonSerializer<Object> keySerializer = _keySerializer;
    final Set<String> ignored = _ignoredEntries;
    final TypeSerializer typeSer = _valueTypeSerializer;

    for (Map.Entry<?, ?> entry : value.entrySet()) {
      Object keyElem = entry.getKey();
      if (ignored != null && ignored.contains(keyElem)) continue;

      if (keyElem == null) {
        provider.findNullKeySerializer(_keyType, _property).serialize(null, gen, provider);
      } else {
        keySerializer.serialize(keyElem, gen, provider);
      }
      final Object valueElem = entry.getValue();
      if (valueElem == null) {
        provider.defaultSerializeNull(gen);
      } else {
        try {
          if (typeSer == null) {
            ser.serialize(valueElem, gen, provider);
          } else {
            ser.serializeWithType(valueElem, gen, provider, typeSer);
          }
        } catch (Exception e) {
          wrapAndThrow(provider, e, value, String.valueOf(keyElem));
        }
      }
    }
  }
Пример #3
0
  /** Serialization method called when exclusion filtering needs to be applied. */
  public void serializeOptionalFields(
      Map<?, ?> value, JsonGenerator gen, SerializerProvider provider, Object suppressableValue)
      throws IOException {
    // If value type needs polymorphic type handling, some more work needed:
    if (_valueTypeSerializer != null) {
      serializeTypedFields(value, gen, provider, suppressableValue);
      return;
    }
    final Set<String> ignored = _ignoredEntries;
    final boolean checkEmpty = (MARKER_FOR_EMPTY == suppressableValue);

    for (Map.Entry<?, ?> entry : value.entrySet()) {
      // First find key serializer
      final Object keyElem = entry.getKey();
      JsonSerializer<Object> keySerializer;
      if (keyElem == null) {
        keySerializer = provider.findNullKeySerializer(_keyType, _property);
      } else {
        if (ignored != null && ignored.contains(keyElem)) continue;
        keySerializer = _keySerializer;
      }

      // Then value serializer
      final Object valueElem = entry.getValue();
      JsonSerializer<Object> valueSer;
      if (valueElem == null) {
        if (_suppressNulls) { // all suppressions include null-suppression
          continue;
        }
        valueSer = provider.getDefaultNullValueSerializer();
      } else {
        valueSer = _valueSerializer;
        if (valueSer == null) {
          valueSer = _findSerializer(provider, valueElem);
        }
        // also may need to skip non-empty values:
        if (checkEmpty) {
          if (valueSer.isEmpty(provider, valueElem)) {
            continue;
          }
        } else if (suppressableValue != null) {
          if (suppressableValue.equals(valueElem)) {
            continue;
          }
        }
      }
      // and then serialize, if all went well
      try {
        keySerializer.serialize(keyElem, gen, provider);
        valueSer.serialize(valueElem, gen, provider);
      } catch (Exception e) {
        wrapAndThrow(provider, e, value, String.valueOf(keyElem));
      }
    }
  }
Пример #4
0
  /** Method called to serialize fields, when the value type is not statically known. */
  public void serializeFields(Map<?, ?> value, JsonGenerator jgen, SerializerProvider provider)
      throws IOException, JsonGenerationException {
    // If value type needs polymorphic type handling, some more work needed:
    if (_valueTypeSerializer != null) {
      serializeTypedFields(value, jgen, provider);
      return;
    }
    final JsonSerializer<Object> keySerializer = _keySerializer;

    final HashSet<String> ignored = _ignoredEntries;
    final boolean skipNulls = !provider.isEnabled(SerializationFeature.WRITE_NULL_MAP_VALUES);

    PropertySerializerMap serializers = _dynamicValueSerializers;

    for (Map.Entry<?, ?> entry : value.entrySet()) {
      Object valueElem = entry.getValue();
      // First, serialize key
      Object keyElem = entry.getKey();
      if (keyElem == null) {
        provider.findNullKeySerializer(_keyType, _property).serialize(null, jgen, provider);
      } else {
        // [JACKSON-314] skip entries with null values?
        if (skipNulls && valueElem == null) continue;
        // One twist: is entry ignorable? If so, skip
        if (ignored != null && ignored.contains(keyElem)) continue;
        keySerializer.serialize(keyElem, jgen, provider);
      }

      // And then value
      if (valueElem == null) {
        provider.defaultSerializeNull(jgen);
      } else {
        Class<?> cc = valueElem.getClass();
        JsonSerializer<Object> serializer = serializers.serializerFor(cc);
        if (serializer == null) {
          if (_valueType.hasGenericTypes()) {
            serializer =
                _findAndAddDynamic(
                    serializers, provider.constructSpecializedType(_valueType, cc), provider);
          } else {
            serializer = _findAndAddDynamic(serializers, cc, provider);
          }
          serializers = _dynamicValueSerializers;
        }
        try {
          serializer.serialize(valueElem, jgen, provider);
        } catch (Exception e) {
          // [JACKSON-55] Need to add reference information
          String keyDesc = "" + keyElem;
          wrapAndThrow(provider, e, value, keyDesc);
        }
      }
    }
  }
Пример #5
0
  /**
   * General-purpose serialization for contents, where we do not necessarily know the value
   * serialization, but we do know that no value suppression is needed (which simplifies processing
   * a bit)
   */
  public void serializeFields(Map<?, ?> value, JsonGenerator gen, SerializerProvider provider)
      throws IOException {
    // If value type needs polymorphic type handling, some more work needed:
    if (_valueTypeSerializer != null) {
      serializeTypedFields(value, gen, provider, null);
      return;
    }
    final JsonSerializer<Object> keySerializer = _keySerializer;
    final Set<String> ignored = _ignoredEntries;
    Object keyElem = null;

    try {
      for (Map.Entry<?, ?> entry : value.entrySet()) {
        Object valueElem = entry.getValue();
        // First, serialize key
        keyElem = entry.getKey();
        if (keyElem == null) {
          provider.findNullKeySerializer(_keyType, _property).serialize(null, gen, provider);
        } else {
          // One twist: is entry ignorable? If so, skip
          if ((ignored != null) && ignored.contains(keyElem)) {
            continue;
          }
          keySerializer.serialize(keyElem, gen, provider);
        }
        // And then value
        if (valueElem == null) {
          provider.defaultSerializeNull(gen);
          continue;
        }
        JsonSerializer<Object> serializer = _valueSerializer;
        if (serializer == null) {
          serializer = _findSerializer(provider, valueElem);
        }
        serializer.serialize(valueElem, gen, provider);
      }
    } catch (Exception e) { // Add reference information
      wrapAndThrow(provider, e, value, String.valueOf(keyElem));
    }
  }
Пример #6
0
  /** @since 2.5 */
  public void serializeTypedFields(
      Map<?, ?> value,
      JsonGenerator gen,
      SerializerProvider provider,
      Object suppressableValue) // since 2.5
      throws IOException {
    final Set<String> ignored = _ignoredEntries;
    final boolean checkEmpty = (MARKER_FOR_EMPTY == suppressableValue);

    for (Map.Entry<?, ?> entry : value.entrySet()) {
      Object keyElem = entry.getKey();
      JsonSerializer<Object> keySerializer;
      if (keyElem == null) {
        keySerializer = provider.findNullKeySerializer(_keyType, _property);
      } else {
        // One twist: is entry ignorable? If so, skip
        if (ignored != null && ignored.contains(keyElem)) continue;
        keySerializer = _keySerializer;
      }
      final Object valueElem = entry.getValue();

      // And then value
      JsonSerializer<Object> valueSer;
      if (valueElem == null) {
        if (_suppressNulls) { // all suppression include null suppression
          continue;
        }
        valueSer = provider.getDefaultNullValueSerializer();
      } else {
        valueSer = _valueSerializer;
        if (valueSer == null) {
          valueSer = _findSerializer(provider, valueElem);
        }
        // also may need to skip non-empty values:
        if (checkEmpty) {
          if (valueSer.isEmpty(provider, valueElem)) {
            continue;
          }
        } else if (suppressableValue != null) {
          if (suppressableValue.equals(valueElem)) {
            continue;
          }
        }
      }
      keySerializer.serialize(keyElem, gen, provider);
      try {
        valueSer.serializeWithType(valueElem, gen, provider, _valueTypeSerializer);
      } catch (Exception e) {
        wrapAndThrow(provider, e, value, String.valueOf(keyElem));
      }
    }
  }
Пример #7
0
  /**
   * Method called to serialize fields, when the value type is statically known, so that value
   * serializer is passed and does not need to be fetched from provider.
   */
  protected void serializeFieldsUsing(
      Map<?, ?> value, JsonGenerator jgen, SerializerProvider provider, JsonSerializer<Object> ser)
      throws IOException, JsonGenerationException {
    final JsonSerializer<Object> keySerializer = _keySerializer;
    final HashSet<String> ignored = _ignoredEntries;
    final TypeSerializer typeSer = _valueTypeSerializer;
    final boolean skipNulls = !provider.isEnabled(SerializationFeature.WRITE_NULL_MAP_VALUES);

    for (Map.Entry<?, ?> entry : value.entrySet()) {
      Object valueElem = entry.getValue();
      Object keyElem = entry.getKey();
      if (keyElem == null) {
        provider.findNullKeySerializer(_keyType, _property).serialize(null, jgen, provider);
      } else {
        // [JACKSON-314] also may need to skip entries with null values
        if (skipNulls && valueElem == null) continue;
        if (ignored != null && ignored.contains(keyElem)) continue;
        keySerializer.serialize(keyElem, jgen, provider);
      }
      if (valueElem == null) {
        provider.defaultSerializeNull(jgen);
      } else {
        try {
          if (typeSer == null) {
            ser.serialize(valueElem, jgen, provider);
          } else {
            ser.serializeWithType(valueElem, jgen, provider, typeSer);
          }
        } catch (Exception e) {
          // [JACKSON-55] Need to add reference information
          String keyDesc = "" + keyElem;
          wrapAndThrow(provider, e, value, keyDesc);
        }
      }
    }
  }
Пример #8
0
  protected void serializeTypedFields(
      Map<?, ?> value, JsonGenerator jgen, SerializerProvider provider)
      throws IOException, JsonGenerationException {
    final JsonSerializer<Object> keySerializer = _keySerializer;
    JsonSerializer<Object> prevValueSerializer = null;
    Class<?> prevValueClass = null;
    final HashSet<String> ignored = _ignoredEntries;
    final boolean skipNulls = !provider.isEnabled(SerializationFeature.WRITE_NULL_MAP_VALUES);

    for (Map.Entry<?, ?> entry : value.entrySet()) {
      Object valueElem = entry.getValue();
      // First, serialize key
      Object keyElem = entry.getKey();
      if (keyElem == null) {
        provider.findNullKeySerializer(_keyType, _property).serialize(null, jgen, provider);
      } else {
        // [JACKSON-314] also may need to skip entries with null values
        if (skipNulls && valueElem == null) continue;
        // One twist: is entry ignorable? If so, skip
        if (ignored != null && ignored.contains(keyElem)) continue;
        keySerializer.serialize(keyElem, jgen, provider);
      }

      // And then value
      if (valueElem == null) {
        provider.defaultSerializeNull(jgen);
      } else {
        Class<?> cc = valueElem.getClass();
        JsonSerializer<Object> currSerializer;
        if (cc == prevValueClass) {
          currSerializer = prevValueSerializer;
        } else {
          currSerializer = provider.findValueSerializer(cc, _property);
          prevValueSerializer = currSerializer;
          prevValueClass = cc;
        }
        try {
          currSerializer.serializeWithType(valueElem, jgen, provider, _valueTypeSerializer);
        } catch (Exception e) {
          // [JACKSON-55] Need to add reference information
          String keyDesc = "" + keyElem;
          wrapAndThrow(provider, e, value, keyDesc);
        }
      }
    }
  }
  /**
   * The method to be called by {@link ObjectMapper} and {@link ObjectWriter} for serializing given
   * value, using serializers that this provider has access to (via caching and/or creating new
   * serializers as need be).
   */
  public void serializeValue(JsonGenerator jgen, Object value)
      throws IOException, JsonGenerationException {
    JsonSerializer<Object> ser;
    final boolean wrap;

    if (value == null) { // no type provided; must just use the default null serializer
      ser = getDefaultNullValueSerializer();
      wrap = false; // no name to use for wrapping; can't do!
    } else {
      Class<?> cls = value.getClass();
      // true, since we do want to cache root-level typed serializers (ditto for null property)
      ser = findTypedValueSerializer(cls, true, null);

      // Ok: should we wrap result in an additional property ("root name")?
      String rootName = _config.getRootName();
      if (rootName == null) { // not explicitly specified
        // [JACKSON-163]
        wrap = _config.isEnabled(SerializationFeature.WRAP_ROOT_VALUE);
        if (wrap) {
          jgen.writeStartObject();
          jgen.writeFieldName(_rootNames.findRootName(value.getClass(), _config));
        }
      } else if (rootName.length() == 0) {
        wrap = false;
      } else { // [JACKSON-764]
        // empty String means explicitly disabled; non-empty that it is enabled
        wrap = true;
        jgen.writeStartObject();
        jgen.writeFieldName(rootName);
      }
    }
    try {
      ser.serialize(value, jgen, this);
      if (wrap) {
        jgen.writeEndObject();
      }
    } catch (IOException ioe) { // As per [JACKSON-99], pass IOException and subtypes as-is
      throw ioe;
    } catch (Exception e) { // but wrap RuntimeExceptions, to get path information
      String msg = e.getMessage();
      if (msg == null) {
        msg = "[no message for " + e.getClass().getName() + "]";
      }
      throw new JsonMappingException(msg, e);
    }
  }
 private final void serializeUsingCustom(
     List<String> value, JsonGenerator jgen, SerializerProvider provider, int len)
     throws IOException, JsonGenerationException {
   int i = 0;
   try {
     final JsonSerializer<String> ser = _serializer;
     for (i = 0; i < len; ++i) {
       String str = value.get(i);
       if (str == null) {
         provider.defaultSerializeNull(jgen);
       } else {
         ser.serialize(str, jgen, provider);
       }
     }
   } catch (Exception e) {
     wrapAndThrow(provider, e, value, i);
   }
 }
  /**
   * The method to be called by {@link ObjectWriter} for serializing given value (assumed to be of
   * specified root type, instead of runtime type of value), when it may know specific {@link
   * JsonSerializer} to use.
   *
   * @param rootType Type to use for locating serializer to use, instead of actual runtime type, if
   *     no serializer is passed
   * @param ser Root Serializer to use, if not null
   * @since 2.1
   */
  public void serializeValue(
      JsonGenerator jgen, Object value, JavaType rootType, JsonSerializer<Object> ser)
      throws IOException, JsonGenerationException {
    final boolean wrap;

    if (value == null) {
      ser = getDefaultNullValueSerializer();
      wrap = false;
    } else {
      // Let's ensure types are compatible at this point
      if (rootType != null) {
        if (!rootType.getRawClass().isAssignableFrom(value.getClass())) {
          _reportIncompatibleRootType(value, rootType);
        }
      }
      // root value, not reached via property:
      if (ser == null) {
        ser = findTypedValueSerializer(rootType, true, null);
      }
      wrap = _config.isEnabled(SerializationFeature.WRAP_ROOT_VALUE);
      if (wrap) {
        jgen.writeStartObject();
        jgen.writeFieldName(_rootNames.findRootName(rootType, _config));
      }
    }
    try {
      ser.serialize(value, jgen, this);
      if (wrap) {
        jgen.writeEndObject();
      }
    } catch (IOException ioe) { // no wrapping for IO (and derived)
      throw ioe;
    } catch (Exception e) { // but others do need to be, to get path etc
      String msg = e.getMessage();
      if (msg == null) {
        msg = "[no message for " + e.getClass().getName() + "]";
      }
      throw new JsonMappingException(msg, e);
    }
  }