Ejemplo n.º 1
0
        private static void PopulateConfigFromType(ItemStorageConfig config, ITypeInfo typeInfo)
        {
            DynamoDBTableAttribute tableAttribute = Utils.GetTableAttribute(typeInfo);

            if (tableAttribute == null)
            {
                config.TableName = typeInfo.Name;
            }
            else
            {
                if (string.IsNullOrEmpty(tableAttribute.TableName))
                {
                    throw new InvalidOperationException("DynamoDBTableAttribute.Table is empty or null");
                }
                config.TableName = tableAttribute.TableName;
                config.LowerCamelCaseProperties = tableAttribute.LowerCamelCaseProperties;
            }

            string tableAlias;

            if (AWSConfigsDynamoDB.Context.TableAliases.TryGetValue(config.TableName, out tableAlias))
            {
                config.TableName = tableAlias;
            }

            foreach (var member in typeInfo.GetMembers())
            {
                if (!StorageConfig.IsValidMemberInfo(member))
                {
                    continue;
                }

                // prepare basic info
                PropertyStorage propertyStorage = new PropertyStorage(member);
                propertyStorage.AttributeName = GetAccurateCase(config, member.Name);

                // run through all DDB attributes
                List <DynamoDBAttribute> allAttributes = Utils.GetAttributes(member);
                foreach (var attribute in allAttributes)
                {
                    // filter out ignored properties
                    if (attribute is DynamoDBIgnoreAttribute)
                    {
                        propertyStorage.IsIgnored = true;
                    }

                    if (attribute is DynamoDBVersionAttribute)
                    {
                        propertyStorage.IsVersion = true;
                    }


                    DynamoDBPropertyAttribute propertyAttribute = attribute as DynamoDBPropertyAttribute;
                    if (propertyAttribute != null)
                    {
                        if (!string.IsNullOrEmpty(propertyAttribute.AttributeName))
                        {
                            propertyStorage.AttributeName = GetAccurateCase(config, propertyAttribute.AttributeName);
                        }

                        if (propertyAttribute.Converter != null)
                        {
                            propertyStorage.ConverterType = propertyAttribute.Converter;
                        }

                        if (propertyAttribute is DynamoDBHashKeyAttribute)
                        {
                            var gsiHashAttribute = propertyAttribute as DynamoDBGlobalSecondaryIndexHashKeyAttribute;
                            if (gsiHashAttribute != null)
                            {
                                propertyStorage.IsGSIHashKey = true;
                                propertyStorage.AddIndex(gsiHashAttribute);
                            }
                            else
                            {
                                propertyStorage.IsHashKey = true;
                            }
                        }
                        if (propertyAttribute is DynamoDBRangeKeyAttribute)
                        {
                            var gsiRangeAttribute = propertyAttribute as DynamoDBGlobalSecondaryIndexRangeKeyAttribute;
                            if (gsiRangeAttribute != null)
                            {
                                propertyStorage.IsGSIRangeKey = true;
                                propertyStorage.AddIndex(gsiRangeAttribute);
                            }
                            else
                            {
                                propertyStorage.IsRangeKey = true;
                            }
                        }

                        DynamoDBLocalSecondaryIndexRangeKeyAttribute lsiRangeKeyAttribute = propertyAttribute as DynamoDBLocalSecondaryIndexRangeKeyAttribute;
                        if (lsiRangeKeyAttribute != null)
                        {
                            propertyStorage.IsLSIRangeKey = true;
                            propertyStorage.AddIndex(lsiRangeKeyAttribute);
                        }
                    }
                }

                config.Properties.Add(propertyStorage);
            }
        }
Ejemplo n.º 2
0
        internal static ItemStorageConfig CreateStorageConfig(Type type)
        {
            if (type == null)
            {
                throw new ArgumentNullException("type");
            }
            var typeWrapper          = TypeFactory.GetTypeInfo(type);
            ItemStorageConfig config = new ItemStorageConfig(type);

            DynamoDBTableAttribute tableAttribute = Utils.GetTableAttribute(type);

            if (tableAttribute == null || string.IsNullOrEmpty(tableAttribute.TableName))
            {
                throw new InvalidOperationException("No DynamoDBTableAttribute on type");
            }

            if (string.IsNullOrEmpty(tableAttribute.TableName))
            {
                throw new InvalidOperationException("DynamoDBTableAttribute.Table is empty or null");
            }
            config.TableName = tableAttribute.TableName;
            config.LowerCamelCaseProperties = tableAttribute.LowerCamelCaseProperties;

            foreach (var member in typeWrapper.GetMembers())
            {
                // filter out non-fields and non-properties
                if (!(member is FieldInfo || member is PropertyInfo))
                {
                    continue;
                }

                // filter out properties that aren't both read and write
                if (!Utils.IsReadWrite(member))
                {
                    continue;
                }

                // prepare basic info
                Type            memberType      = Utils.GetType(member);
                string          attributeName   = GetAccurateCase(config, member.Name);
                string          propertyName    = member.Name;
                PropertyStorage propertyStorage = new PropertyStorage(member, memberType);

                // run through all DDB attributes
                bool ignorePresent = false;
                var  allAttributes = Utils.GetAttributes(member);
                foreach (var attribute in allAttributes)
                {
                    // filter out ignored properties
                    if (attribute is DynamoDBIgnoreAttribute)
                    {
                        ignorePresent |= true;
                    }

                    // if ignore attribute is present, ignore other attributes
                    if (ignorePresent)
                    {
                        continue;
                    }

                    if (attribute is DynamoDBVersionAttribute)
                    {
                        Utils.ValidateVersionType(memberType);    // no conversion is possible, so type must be a nullable primitive

                        propertyStorage.IsVersion = true;
                    }

                    DynamoDBPropertyAttribute propertyAttribute = attribute as DynamoDBPropertyAttribute;
                    if (propertyAttribute != null)
                    {
                        if (!string.IsNullOrEmpty(propertyAttribute.AttributeName))
                        {
                            attributeName = GetAccurateCase(config, propertyAttribute.AttributeName);
                        }

                        if (propertyAttribute is DynamoDBHashKeyAttribute)
                        {
                            if (propertyAttribute.Converter == null && !Utils.IsPrimitive(memberType))
                            {
                                throw new InvalidOperationException("Hash key " + propertyName + " must be of primitive type");
                            }

                            var gsiHashAttribute = propertyAttribute as DynamoDBGlobalSecondaryIndexHashKeyAttribute;
                            if (gsiHashAttribute != null)
                            {
                                propertyStorage.IsGSIHashKey = true;
                                if (gsiHashAttribute.IndexNames == null || gsiHashAttribute.IndexNames.Length == 0)
                                {
                                    throw new InvalidOperationException("Global Secondary Index must not be null or empty");
                                }
                                propertyStorage.Indexes.AddRange(gsiHashAttribute.IndexNames);
                                AddGSIConfigs(config, gsiHashAttribute.IndexNames, propertyName, true);
                            }
                            else
                            {
                                propertyStorage.IsHashKey = true;
                            }
                        }
                        if (propertyAttribute is DynamoDBRangeKeyAttribute)
                        {
                            if (propertyAttribute.Converter == null && !Utils.IsPrimitive(memberType))
                            {
                                throw new InvalidOperationException("Range key " + propertyName + " must be of primitive type");
                            }

                            var gsiRangeAttribute = propertyAttribute as DynamoDBGlobalSecondaryIndexRangeKeyAttribute;
                            if (gsiRangeAttribute != null)
                            {
                                propertyStorage.IsGSIRangeKey = true;
                                if (gsiRangeAttribute.IndexNames == null || gsiRangeAttribute.IndexNames.Length == 0)
                                {
                                    throw new InvalidOperationException("Global Secondary Index must not be null or empty");
                                }
                                propertyStorage.Indexes.AddRange(gsiRangeAttribute.IndexNames);
                                AddGSIConfigs(config, gsiRangeAttribute.IndexNames, propertyName, false);
                            }
                            else
                            {
                                propertyStorage.IsRangeKey = true;
                            }
                        }

                        DynamoDBLocalSecondaryIndexRangeKeyAttribute lsiRangeKeyAttribute = propertyAttribute as DynamoDBLocalSecondaryIndexRangeKeyAttribute;
                        if (lsiRangeKeyAttribute != null)
                        {
                            if (lsiRangeKeyAttribute.IndexNames == null || lsiRangeKeyAttribute.IndexNames.Length == 0)
                            {
                                throw new InvalidOperationException("Local Secondary Index must not be null or empty");
                            }
                            propertyStorage.Indexes.AddRange(lsiRangeKeyAttribute.IndexNames);
                            propertyStorage.IsLSIRangeKey = true;

                            foreach (var index in lsiRangeKeyAttribute.IndexNames)
                            {
                                List <string> properties;
                                if (!config.IndexNameToLSIRangePropertiesMapping.TryGetValue(index, out properties))
                                {
                                    properties = new List <string>();
                                    config.IndexNameToLSIRangePropertiesMapping[index] = properties;
                                }
                                properties.Add(propertyName);
                            }
                        }

                        if (propertyAttribute.Converter != null)
                        {
                            if (!Utils.CanInstantiate(propertyAttribute.Converter) || !Utils.ImplementsInterface(propertyAttribute.Converter, typeof(IPropertyConverter)))
                            {
                                throw new InvalidOperationException("Converter for " + propertyName + " must be instantiable with no parameters and must implement IPropertyConverter");
                            }

                            propertyStorage.Converter = Utils.Instantiate(propertyAttribute.Converter) as IPropertyConverter;
                        }
                    }
                }

                propertyStorage.PropertyName  = propertyName;
                propertyStorage.AttributeName = attributeName;

                // only add property storage if no ignore attribute was present
                if (!ignorePresent)
                {
                    config.AddPropertyStorage(propertyStorage);
                }
            }

            if (config.HashKeyPropertyNames.Count == 0)
            {
                throw new InvalidOperationException("No hash key configured for type " + type.FullName);
            }

            return(config);
        }
Ejemplo n.º 3
0
        internal static ItemStorageConfig CreateStorageConfig(Type type)
        {
            if (type == null)
            {
                throw new ArgumentNullException("type");
            }

            ItemStorageConfig config = new ItemStorageConfig(type);

            DynamoDBTableAttribute tableAttribute = Utils.GetTableAttribute(type);

            if (tableAttribute == null || string.IsNullOrEmpty(tableAttribute.TableName))
            {
                throw new InvalidOperationException("No DynamoDBTableAttribute on type");
            }

            if (string.IsNullOrEmpty(tableAttribute.TableName))
            {
                throw new InvalidOperationException("DynamoDBTableAttribute.Table is empty or null");
            }
            config.TableName = tableAttribute.TableName;
            config.LowerCamelCaseProperties = tableAttribute.LowerCamelCaseProperties;

            foreach (var member in type.GetMembers())
            {
                // filter out non-fields and non-properties
                if (!(member is FieldInfo || member is PropertyInfo))
                {
                    continue;
                }

                // filter out properties that aren't both read and write
                if (!Utils.IsReadWrite(member))
                {
                    continue;
                }

                DynamoDBAttribute attribute = Utils.GetAttribute(member);

                // filter out ignored properties
                if (attribute is DynamoDBIgnoreAttribute)
                {
                    continue;
                }

                Type   memberType    = Utils.GetType(member);
                string attributeName = GetAccurateCase(config, member.Name);
                string propertyName  = member.Name;

                PropertyStorage propertyStorage = new PropertyStorage
                {
                    Member     = member,
                    MemberType = memberType,
                };

                if (attribute is DynamoDBVersionAttribute)
                {
                    Utils.ValidateVersionType(memberType);    // no conversion is possible, so type must be a nullable primitive

                    propertyStorage.IsVersion = true;
                }

                DynamoDBPropertyAttribute propertyAttribute = attribute as DynamoDBPropertyAttribute;
                if (propertyAttribute != null)
                {
                    if (!string.IsNullOrEmpty(propertyAttribute.AttributeName))
                    {
                        attributeName = GetAccurateCase(config, propertyAttribute.AttributeName);
                    }

                    if (propertyAttribute is DynamoDBHashKeyAttribute)
                    {
                        if (propertyAttribute.Converter == null && !Utils.IsPrimitive(memberType))
                        {
                            throw new InvalidOperationException("Hash key " + propertyName + " must be of primitive type");
                        }

                        propertyStorage.IsHashKey = true;
                    }
                    if (propertyAttribute is DynamoDBRangeKeyAttribute)
                    {
                        if (propertyAttribute.Converter == null && !Utils.IsPrimitive(memberType))
                        {
                            throw new InvalidOperationException("Range key " + propertyName + " must be of primitive type");
                        }

                        propertyStorage.IsRangeKey = true;
                    }
                    if (propertyAttribute is DynamoDBLocalSecondaryIndexRangeKeyAttribute)
                    {
                        DynamoDBLocalSecondaryIndexRangeKeyAttribute lsiRangeKeyAttribute = propertyAttribute as DynamoDBLocalSecondaryIndexRangeKeyAttribute;
                        if (lsiRangeKeyAttribute.IndexNames == null || lsiRangeKeyAttribute.IndexNames.Length == 0)
                        {
                            throw new InvalidOperationException("Local Secondary Index must not be null or empty");
                        }
                        propertyStorage.Indexes.AddRange(lsiRangeKeyAttribute.IndexNames);
                    }

                    if (propertyAttribute.Converter != null)
                    {
                        if (!Utils.CanInstantiate(propertyAttribute.Converter) || !Utils.ImplementsInterface(propertyAttribute.Converter, typeof(IPropertyConverter)))
                        {
                            throw new InvalidOperationException("Converter for " + propertyName + " must be instantiable with no parameters and must implement IPropertyConverter");
                        }

                        propertyStorage.Converter = Utils.Instantiate(propertyAttribute.Converter) as IPropertyConverter;
                    }
                }

                propertyStorage.PropertyName  = propertyName;
                propertyStorage.AttributeName = attributeName;

                config.AddPropertyStorage(propertyStorage);
            }

            if (config.HashKeyPropertyNames.Count == 0)
            {
                throw new InvalidOperationException("No hash key configured for type " + type.FullName);
            }

            return(config);
        }