lib/server-core/src/main/java/org/apache/olingo/server/core/serializer/json/JsonDeltaSerializer.java [217:459]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    json.writeEndObject();

  }

  private Property findProperty(final String propertyName, final List<Property> properties) {
    for (final Property property : properties) {
      if (propertyName.equals(property.getName())) {
        return property;
      }
    }
    return null;
  }

  protected void writeProperty(final ServiceMetadata metadata,
      final EdmProperty edmProperty, final Property property,
      final Set<List<String>> selectedPaths, final JsonGenerator json)
      throws IOException, SerializerException {
    boolean isStreamProperty = isStreamProperty(edmProperty);
    if (property != null) {
      if (!isStreamProperty) {
        json.writeFieldName(edmProperty.getName());
      }
      writePropertyValue(metadata, edmProperty, property, selectedPaths, json);
    }

  }

  private boolean isStreamProperty(EdmProperty edmProperty) {
    final EdmType type = edmProperty.getType();
    return (edmProperty.isPrimitive() && type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Stream));
  }

  private void writePropertyValue(final ServiceMetadata metadata, final EdmProperty edmProperty,
      final Property property, final Set<List<String>> selectedPaths, final JsonGenerator json)
      throws IOException, SerializerException {
    final EdmType type = edmProperty.getType();
    try {
      if (edmProperty.isPrimitive()
          || type.getKind() == EdmTypeKind.ENUM || type.getKind() == EdmTypeKind.DEFINITION) {
        if (edmProperty.isCollection()) {
          writePrimitiveCollection((EdmPrimitiveType) type, property,
              edmProperty.isNullable(), edmProperty.getMaxLength(),
              edmProperty.getPrecision(), edmProperty.getScale(), edmProperty.isUnicode(), json);
        } else {
          writePrimitive((EdmPrimitiveType) type, property,
              edmProperty.isNullable(), edmProperty.getMaxLength(),
              edmProperty.getPrecision(), edmProperty.getScale(), edmProperty.isUnicode(), json);
        }
      } else if (property.isComplex()) {
        if (edmProperty.isCollection()) {
          writeComplexCollection(metadata, (EdmComplexType) type, property, selectedPaths, json);
        } else {
          writeComplex(metadata, (EdmComplexType) type, property, selectedPaths, json);
        }
      } else {
        throw new SerializerException("Property type not yet supported!",
            SerializerException.MessageKeys.UNSUPPORTED_PROPERTY_TYPE, edmProperty.getName());
      }
    } catch (final EdmPrimitiveTypeException e) {
      throw new SerializerException("Wrong value for property!", e,
          SerializerException.MessageKeys.WRONG_PROPERTY_VALUE,
          edmProperty.getName(), property.getValue().toString());
    }
  }

  protected EdmComplexType resolveComplexType(final ServiceMetadata metadata, final EdmComplexType baseType,
      final String derivedTypeName) throws SerializerException {

    String fullQualifiedName = baseType.getFullQualifiedName().getFullQualifiedNameAsString();
    if (derivedTypeName == null ||
        fullQualifiedName.equals(derivedTypeName)) {
      return baseType;
    }
    EdmComplexType derivedType = metadata.getEdm().getComplexType(new FullQualifiedName(derivedTypeName));
    if (derivedType == null) {
      throw new SerializerException("Complex Type not found",
          SerializerException.MessageKeys.UNKNOWN_TYPE, derivedTypeName);
    }
    EdmComplexType type = derivedType.getBaseType();
    while (type != null) {
      if (type.getFullQualifiedName().equals(baseType.getFullQualifiedName())) {
        return derivedType;
      }
      type = type.getBaseType();
    }
    throw new SerializerException("Wrong base type",
        SerializerException.MessageKeys.WRONG_BASE_TYPE, derivedTypeName,
        baseType.getFullQualifiedName().getFullQualifiedNameAsString());
  }

  private void writeComplex(final ServiceMetadata metadata, final EdmComplexType type,
      final Property property, final Set<List<String>> selectedPaths, final JsonGenerator json)
      throws IOException, SerializerException {
    json.writeStartObject();
    String derivedName = property.getType();
    final EdmComplexType resolvedType = resolveComplexType(metadata, (EdmComplexType) type, derivedName);
    if (!isODataMetadataNone && !resolvedType.equals(type) || isODataMetadataFull) {
      json.writeStringField(Constants.JSON_TYPE, "#" + property.getType());
    }
    writeComplexValue(metadata, resolvedType, property.asComplex().getValue(), selectedPaths,
        json);
    json.writeEndObject();
  }

  private void writePrimitiveCollection(final EdmPrimitiveType type, final Property property,
      final Boolean isNullable, final Integer maxLength, final Integer precision, final Integer scale,
      final Boolean isUnicode, final JsonGenerator json)
      throws IOException, SerializerException {
    json.writeStartArray();
    for (Object value : property.asCollection()) {
      switch (property.getValueType()) {
      case COLLECTION_PRIMITIVE:
      case COLLECTION_ENUM:
        try {
          writePrimitiveValue(property.getName(), type, value, isNullable,
              maxLength, precision, scale, isUnicode, json);
        } catch (EdmPrimitiveTypeException e) {
          throw new SerializerException("Wrong value for property!", e,
              SerializerException.MessageKeys.WRONG_PROPERTY_VALUE,
              property.getName(), property.getValue().toString());
        }
        break;
      case COLLECTION_GEOSPATIAL:
        throw new SerializerException("Property type not yet supported!",
            SerializerException.MessageKeys.UNSUPPORTED_PROPERTY_TYPE, property.getName());
      default:
        throw new SerializerException("Property type not yet supported!",
            SerializerException.MessageKeys.UNSUPPORTED_PROPERTY_TYPE, property.getName());
      }
    }
    json.writeEndArray();
  }

  private void writeComplexCollection(final ServiceMetadata metadata, final EdmComplexType type,
      final Property property,
      final Set<List<String>> selectedPaths, final JsonGenerator json)
      throws IOException, SerializerException {
    json.writeStartArray();
    for (Object value : property.asCollection()) {
      switch (property.getValueType()) {
      case COLLECTION_COMPLEX:
        json.writeStartObject();
        if (isODataMetadataFull) {
          json.writeStringField(Constants.JSON_TYPE, "#" +
              type.getFullQualifiedName().getFullQualifiedNameAsString());
        }
        writeComplexValue(metadata, type, ((ComplexValue) value).getValue(), selectedPaths, json);
        json.writeEndObject();
        break;
      default:
        throw new SerializerException("Property type not yet supported!",
            SerializerException.MessageKeys.UNSUPPORTED_PROPERTY_TYPE, property.getName());
      }
    }
    json.writeEndArray();
  }

  private void writePrimitive(final EdmPrimitiveType type, final Property property,
      final Boolean isNullable, final Integer maxLength, final Integer precision, final Integer scale,
      final Boolean isUnicode, final JsonGenerator json)
      throws EdmPrimitiveTypeException, IOException, SerializerException {
    if (property.isPrimitive()) {
      writePrimitiveValue(property.getName(), type, property.asPrimitive(),
          isNullable, maxLength, precision, scale, isUnicode, json);
    } else if (property.isGeospatial()) {
      throw new SerializerException("Property type not yet supported!",
          SerializerException.MessageKeys.UNSUPPORTED_PROPERTY_TYPE, property.getName());
    } else if (property.isEnum()) {
      writePrimitiveValue(property.getName(), type, property.asEnum(),
          isNullable, maxLength, precision, scale, isUnicode, json);
    } else {
      throw new SerializerException("Inconsistent property type!",
          SerializerException.MessageKeys.INCONSISTENT_PROPERTY_TYPE, property.getName());
    }
  }

  protected void writePrimitiveValue(final String name, final EdmPrimitiveType type, final Object primitiveValue,
      final Boolean isNullable, final Integer maxLength, final Integer precision, final Integer scale,
      final Boolean isUnicode, final JsonGenerator json) throws EdmPrimitiveTypeException, IOException {
    final String value = type.valueToString(primitiveValue,
        isNullable, maxLength, precision, scale, isUnicode);
    if (value == null) {
      json.writeNull();
    } else if (type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Boolean)) {
      json.writeBoolean(Boolean.parseBoolean(value));
    } else if (type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Byte)
        || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Double)
        || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Int16)
        || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Int32)
        || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.SByte)
        || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Single)
        || (type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Decimal)
            || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Int64))
            && !isIEEE754Compatible) {
      json.writeNumber(value);
    } else if (type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Stream)) {
      if (primitiveValue instanceof Link) {
        Link stream = (Link) primitiveValue;
        if (!isODataMetadataNone) {
          if (stream.getMediaETag() != null) {
            json.writeStringField(name + Constants.JSON_MEDIA_ETAG, stream.getMediaETag());
          }
          if (stream.getType() != null) {
            json.writeStringField(name + Constants.JSON_MEDIA_CONTENT_TYPE, stream.getType());
          }
        }
        if (isODataMetadataFull) {
          if (stream.getRel() != null && stream.getRel().equals(Constants.NS_MEDIA_READ_LINK_REL)) {
            json.writeStringField(name + Constants.JSON_MEDIA_READ_LINK, stream.getHref());
          }
          if (stream.getRel() == null || stream.getRel().equals(Constants.NS_MEDIA_EDIT_LINK_REL)) {
            json.writeStringField(name + Constants.JSON_MEDIA_EDIT_LINK, stream.getHref());
          }
        }
      }
    } else {
      json.writeString(value);
    }
  }

  protected void writeComplexValue(final ServiceMetadata metadata,
      final EdmComplexType type, final List<Property> properties,
      final Set<List<String>> selectedPaths, final JsonGenerator json)
      throws IOException, SerializerException {

    for (final String propertyName : type.getPropertyNames()) {
      final Property property = findProperty(propertyName, properties);
      if (selectedPaths == null || ExpandSelectHelper.isSelected(selectedPaths, propertyName)) {
        writeProperty(metadata, (EdmProperty) type.getProperty(propertyName), property,
            selectedPaths == null ? null : ExpandSelectHelper.getReducedSelectedPaths(selectedPaths, propertyName),
            json);
      }
    }
  }

  protected void writeProperties(final ServiceMetadata metadata, final EdmStructuredType type,
      final List<Property> properties,
      final SelectOption select, final JsonGenerator json)
      throws IOException, SerializerException {
    final boolean all = ExpandSelectHelper.isAll(select);
    final Set<String> selected = all ? new HashSet<>() : ExpandSelectHelper.getSelectedPropertyNames(select
        .getSelectItems());
    for (final String propertyName : type.getPropertyNames()) {
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



lib/server-core/src/main/java/org/apache/olingo/server/core/serializer/json/JsonDeltaSerializerWithNavigations.java [254:495]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    json.writeEndObject();

  }

  private Property findProperty(final String propertyName, final List<Property> properties) {
    for (final Property property : properties) {
      if (propertyName.equals(property.getName())) {
        return property;
      }
    }
    return null;
  }

  protected void writeProperty(final ServiceMetadata metadata,
      final EdmProperty edmProperty, final Property property,
      final Set<List<String>> selectedPaths, final JsonGenerator json)
      throws IOException, SerializerException {
    boolean isStreamProperty = isStreamProperty(edmProperty);
    if (property != null) {
      if (!isStreamProperty) {
        json.writeFieldName(edmProperty.getName());
      }
      writePropertyValue(metadata, edmProperty, property, selectedPaths, json);
    }
  }

  private boolean isStreamProperty(EdmProperty edmProperty) {
    final EdmType type = edmProperty.getType();
    return (edmProperty.isPrimitive() && type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Stream));
  }

  private void writePropertyValue(final ServiceMetadata metadata, final EdmProperty edmProperty,
      final Property property, final Set<List<String>> selectedPaths, final JsonGenerator json)
      throws IOException, SerializerException {
    final EdmType type = edmProperty.getType();
    try {
      if (edmProperty.isPrimitive()
          || type.getKind() == EdmTypeKind.ENUM || type.getKind() == EdmTypeKind.DEFINITION) {
        if (edmProperty.isCollection()) {
          writePrimitiveCollection((EdmPrimitiveType) type, property,
              edmProperty.isNullable(), edmProperty.getMaxLength(),
              edmProperty.getPrecision(), edmProperty.getScale(), edmProperty.isUnicode(), json);
        } else {
          writePrimitive((EdmPrimitiveType) type, property,
              edmProperty.isNullable(), edmProperty.getMaxLength(),
              edmProperty.getPrecision(), edmProperty.getScale(), edmProperty.isUnicode(), json);
        }
      } else if (property.isComplex()) {
        if (edmProperty.isCollection()) {
          writeComplexCollection(metadata, (EdmComplexType) type, property, selectedPaths, json);
        } else {
          writeComplex(metadata, (EdmComplexType) type, property, selectedPaths, json);
        }
      } else {
        throw new SerializerException("Property type not yet supported!",
            SerializerException.MessageKeys.UNSUPPORTED_PROPERTY_TYPE, edmProperty.getName());
      }
    } catch (final EdmPrimitiveTypeException e) {
      throw new SerializerException("Wrong value for property!", e,
          SerializerException.MessageKeys.WRONG_PROPERTY_VALUE,
          edmProperty.getName(), property.getValue().toString());
    }
  }

  protected EdmComplexType resolveComplexType(final ServiceMetadata metadata, final EdmComplexType baseType,
      final String derivedTypeName) throws SerializerException {

    String fullQualifiedName = baseType.getFullQualifiedName().getFullQualifiedNameAsString();
    if (derivedTypeName == null ||
        fullQualifiedName.equals(derivedTypeName)) {
      return baseType;
    }
    EdmComplexType derivedType = metadata.getEdm().getComplexType(new FullQualifiedName(derivedTypeName));
    if (derivedType == null) {
      throw new SerializerException("Complex Type not found",
          SerializerException.MessageKeys.UNKNOWN_TYPE, derivedTypeName);
    }
    EdmComplexType type = derivedType.getBaseType();
    while (type != null) {
      if (type.getFullQualifiedName().equals(baseType.getFullQualifiedName())) {
        return derivedType;
      }
      type = type.getBaseType();
    }
    throw new SerializerException("Wrong base type",
        SerializerException.MessageKeys.WRONG_BASE_TYPE, derivedTypeName,
        baseType.getFullQualifiedName().getFullQualifiedNameAsString());
  }

  private void writeComplex(final ServiceMetadata metadata, final EdmComplexType type,
      final Property property, final Set<List<String>> selectedPaths, final JsonGenerator json)
      throws IOException, SerializerException {
    json.writeStartObject();
    String derivedName = property.getType();
    final EdmComplexType resolvedType = resolveComplexType(metadata, (EdmComplexType) type, derivedName);
    if (!isODataMetadataNone && !resolvedType.equals(type) || isODataMetadataFull) {
      json.writeStringField(Constants.JSON_TYPE, "#" + property.getType());
    }
    writeComplexValue(metadata, resolvedType, property.asComplex().getValue(), selectedPaths,
        json);
    json.writeEndObject();
  }

  private void writePrimitiveCollection(final EdmPrimitiveType type, final Property property,
      final Boolean isNullable, final Integer maxLength, final Integer precision, final Integer scale,
      final Boolean isUnicode, final JsonGenerator json)
      throws IOException, SerializerException {
    json.writeStartArray();
    for (Object value : property.asCollection()) {
      switch (property.getValueType()) {
      case COLLECTION_PRIMITIVE:
      case COLLECTION_ENUM:
        try {
          writePrimitiveValue(property.getName(), type, value, isNullable,
              maxLength, precision, scale, isUnicode, json);
        } catch (EdmPrimitiveTypeException e) {
          throw new SerializerException("Wrong value for property!", e,
              SerializerException.MessageKeys.WRONG_PROPERTY_VALUE,
              property.getName(), property.getValue().toString());
        }
        break;
      case COLLECTION_GEOSPATIAL:
        throw new SerializerException("Property type not yet supported!",
            SerializerException.MessageKeys.UNSUPPORTED_PROPERTY_TYPE, property.getName());
      default:
        throw new SerializerException("Property type not yet supported!",
            SerializerException.MessageKeys.UNSUPPORTED_PROPERTY_TYPE, property.getName());
      }
    }
    json.writeEndArray();
  }

  private void writeComplexCollection(final ServiceMetadata metadata, final EdmComplexType type,
      final Property property,
      final Set<List<String>> selectedPaths, final JsonGenerator json)
      throws IOException, SerializerException {
    json.writeStartArray();
    for (Object value : property.asCollection()) {
      switch (property.getValueType()) {
      case COLLECTION_COMPLEX:
        json.writeStartObject();
        if (isODataMetadataFull) {
          json.writeStringField(Constants.JSON_TYPE, "#" +
              type.getFullQualifiedName().getFullQualifiedNameAsString());
        }
        writeComplexValue(metadata, type, ((ComplexValue) value).getValue(), selectedPaths, json);
        json.writeEndObject();
        break;
      default:
        throw new SerializerException("Property type not yet supported!",
            SerializerException.MessageKeys.UNSUPPORTED_PROPERTY_TYPE, property.getName());
      }
    }
    json.writeEndArray();
  }

  private void writePrimitive(final EdmPrimitiveType type, final Property property,
      final Boolean isNullable, final Integer maxLength, final Integer precision, final Integer scale,
      final Boolean isUnicode, final JsonGenerator json)
      throws EdmPrimitiveTypeException, IOException, SerializerException {
    if (property.isPrimitive()) {
      writePrimitiveValue(property.getName(), type, property.asPrimitive(),
          isNullable, maxLength, precision, scale, isUnicode, json);
    } else if (property.isGeospatial()) {
      throw new SerializerException("Property type not yet supported!",
          SerializerException.MessageKeys.UNSUPPORTED_PROPERTY_TYPE, property.getName());
    } else if (property.isEnum()) {
      writePrimitiveValue(property.getName(), type, property.asEnum(),
          isNullable, maxLength, precision, scale, isUnicode, json);
    } else {
      throw new SerializerException("Inconsistent property type!",
          SerializerException.MessageKeys.INCONSISTENT_PROPERTY_TYPE, property.getName());
    }
  }

  protected void writePrimitiveValue(final String name, final EdmPrimitiveType type, final Object primitiveValue,
      final Boolean isNullable, final Integer maxLength, final Integer precision, final Integer scale,
      final Boolean isUnicode, final JsonGenerator json) throws EdmPrimitiveTypeException, IOException {
    final String value = type.valueToString(primitiveValue,
        isNullable, maxLength, precision, scale, isUnicode);
    if (value == null) {
      json.writeNull();
    } else if (type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Boolean)) {
      json.writeBoolean(Boolean.parseBoolean(value));
    } else if (type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Byte)
        || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Double)
        || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Int16)
        || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Int32)
        || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.SByte)
        || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Single)
        || (type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Decimal)
            || type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Int64))
            && !isIEEE754Compatible) {
      json.writeNumber(value);
    } else if (type == EdmPrimitiveTypeFactory.getInstance(EdmPrimitiveTypeKind.Stream)) {
      if (primitiveValue instanceof Link) {
        Link stream = (Link) primitiveValue;
        if (!isODataMetadataNone) {
          if (stream.getMediaETag() != null) {
            json.writeStringField(name + Constants.JSON_MEDIA_ETAG, stream.getMediaETag());
          }
          if (stream.getType() != null) {
            json.writeStringField(name + Constants.JSON_MEDIA_CONTENT_TYPE, stream.getType());
          }
        }
        if (isODataMetadataFull) {
          if (stream.getRel() != null && stream.getRel().equals(Constants.NS_MEDIA_READ_LINK_REL)) {
            json.writeStringField(name + Constants.JSON_MEDIA_READ_LINK, stream.getHref());
          }
          if (stream.getRel() == null || stream.getRel().equals(Constants.NS_MEDIA_EDIT_LINK_REL)) {
            json.writeStringField(name + Constants.JSON_MEDIA_EDIT_LINK, stream.getHref());
          }
        }
      }
    } else {
      json.writeString(value);
    }
  }

  protected void writeComplexValue(final ServiceMetadata metadata,
      final EdmComplexType type, final List<Property> properties,
      final Set<List<String>> selectedPaths, final JsonGenerator json)
      throws IOException, SerializerException {

    for (final String propertyName : type.getPropertyNames()) {
      final Property property = findProperty(propertyName, properties);
      if (selectedPaths == null || ExpandSelectHelper.isSelected(selectedPaths, propertyName)) {
        writeProperty(metadata, (EdmProperty) type.getProperty(propertyName), property,
            selectedPaths == null ? null : ExpandSelectHelper.getReducedSelectedPaths(selectedPaths, propertyName),
            json);
      }
    }
  }

  protected void writeProperties(final ServiceMetadata metadata, final EdmStructuredType type,
      final List<Property> properties,
      final SelectOption select, final JsonGenerator json)
      throws IOException, SerializerException {
    final boolean all = ExpandSelectHelper.isAll(select);
    final Set<String> selected = all ? new HashSet<>() : ExpandSelectHelper.getSelectedPropertyNames(select
        .getSelectItems());
    for (final String propertyName : type.getPropertyNames()) {
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -