internal static void LoadTableAsync(IAmazonDynamoDB ddbClient, string tableName, Table.DynamoDBConsumer consumer, DynamoDBEntryConversion conversion, AmazonDynamoDBCallback<Table> callback, AsyncOptions asyncOptions = null)
{
asyncOptions = asyncOptions??new AsyncOptions();
DynamoDBAsyncExecutor.ExecuteAsync<Table>(
()=>{
return LoadTable(ddbClient,tableName,consumer,conversion);
},asyncOptions,callback);
}
/// <summary>
/// Converts this ExpectedValue instance to Amazon.DynamoDBv2.Model.ExpectedAttributeValue
/// </summary>
/// <param name="conversion">Conversion to use for converting .NET values to DynamoDB values.</param>
/// <returns>Amazon.DynamoDBv2.Model.ExpectedAttributeValue</returns>
public ExpectedAttributeValue ToExpectedAttributeValue(DynamoDBEntryConversion conversion)
{
var eav = new ExpectedAttributeValue();
if (this.Exists)
{
eav.ComparisonOperator = EnumMapper.Convert(this.Comparison);
foreach (var val in this.Values)
eav.AttributeValueList.Add(val.ConvertToAttributeValue(new DynamoDBEntry.AttributeConversionConfig(conversion)));
}
else
eav.Exists = this.Exists;
return eav;
}
internal Dictionary<string, AttributeValue> ConvertToAttributeValues(DynamoDBEntryConversion conversion)
{
var convertedValues = new Dictionary<string, AttributeValue>();
if (this._expressionAttributeValues != null)
{
foreach (var kvp in this.ExpressionAttributeValues)
{
if (kvp.Value == null)
convertedValues[kvp.Key] = new AttributeValue { NULL = true };
else
convertedValues[kvp.Key] = kvp.Value.ConvertToAttributeValue(new DynamoDBEntry.AttributeConversionConfig(conversion));
}
}
return convertedValues;
}
/// <summary>
/// Creates a list of AttributeValues from a list of DynamoDBEntry items
/// </summary>
/// <param name="conversion"></param>
/// <param name="isEmptyStringValueEnabled"></param>
/// <param name="values"></param>
/// <returns></returns>
protected static List <AttributeValue> ConvertToAttributeValues(DynamoDBEntryConversion conversion,
bool isEmptyStringValueEnabled, params DynamoDBEntry[] values)
{
List <AttributeValue> attributes = new List <AttributeValue>();
foreach (DynamoDBEntry value in values)
{
var attributeConversionConfig = new DynamoDBEntry.AttributeConversionConfig(conversion, isEmptyStringValueEnabled);
AttributeValue nativeValue = value.ConvertToAttributeValue(attributeConversionConfig);
if (nativeValue != null)
{
attributes.Add(nativeValue);
}
}
return(attributes);
}
private Dictionary <string, Condition> ToConditions(DynamoDBEntryConversion conversion,
IEnumerable <string> epochAttributes, bool isEmptyStringValueEnabled)
{
var dic = new Dictionary <string, Condition>();
foreach (var kvp in Conditions)
{
string name = kvp.Key;
FilterCondition fc = kvp.Value;
bool convertToEpochSeconds = epochAttributes != null && epochAttributes.Contains(name);
Condition condition = fc.ToCondition(conversion, convertToEpochSeconds, name, isEmptyStringValueEnabled);
dic[name] = condition;
}
return(dic);
}
internal TableConfig(string tableName, DynamoDBEntryConversion conversion, Table.DynamoDBConsumer consumer,
IEnumerable <string> storeAsEpoch, bool isEmptyStringValueEnabled)
{
if (string.IsNullOrEmpty(tableName))
{
throw new ArgumentNullException("tableName");
}
TableName = tableName;
Conversion = conversion;
Consumer = consumer;
IsEmptyStringValueEnabled = isEmptyStringValueEnabled;
AttributesToStoreAsEpoch = new List <string>();
if (storeAsEpoch != null)
{
AttributesToStoreAsEpoch.AddRange(storeAsEpoch);
}
}
private void LoadTables(DynamoDBEntryConversion conversion, out Table hashTable, out Table hashRangeTable)
{
TableCache.Clear();
using (var counter = CountServiceResponses(Client))
{
// Load table using TryLoadTable API
hashTable = null;
Assert.IsFalse(Table.TryLoadTable(Client, "FakeHashTableThatShouldNotExist", conversion, out hashTable));
Assert.AreEqual(0, counter.ResponseCount);
Assert.IsTrue(Table.TryLoadTable(Client, hashTableName, conversion, out hashTable));
Assert.AreEqual(1, counter.ResponseCount);
Assert.IsNotNull(hashTable);
Assert.AreEqual(hashTableName, hashTable.TableName);
Assert.AreEqual(3, hashTable.Attributes.Count);
Assert.AreEqual(1, hashTable.GlobalSecondaryIndexes.Count);
Assert.AreEqual(1, hashTable.GlobalSecondaryIndexes["GlobalIndex"].ProvisionedThroughput.ReadCapacityUnits);
Assert.AreEqual(1, hashTable.GlobalSecondaryIndexNames.Count);
Assert.AreEqual(1, hashTable.HashKeys.Count);
Assert.AreEqual(0, hashTable.RangeKeys.Count);
Assert.AreEqual(1, hashTable.Keys.Count);
Assert.AreEqual(0, hashTable.LocalSecondaryIndexes.Count);
Assert.AreEqual(0, hashTable.LocalSecondaryIndexNames.Count);
// Load table using LoadTable API (may throw an exception)
AssertExtensions.ExpectException(() => Table.LoadTable(Client, "FakeHashRangeTableThatShouldNotExist", conversion));
Assert.AreEqual(1, counter.ResponseCount);
hashRangeTable = Table.LoadTable(Client, hashRangeTableName, conversion);
Assert.AreEqual(2, counter.ResponseCount);
Assert.IsNotNull(hashRangeTable);
Assert.AreEqual(hashRangeTableName, hashRangeTable.TableName);
Assert.AreEqual(5, hashRangeTable.Attributes.Count);
Assert.AreEqual(1, hashRangeTable.GlobalSecondaryIndexes.Count);
Assert.AreEqual(1, hashRangeTable.GlobalSecondaryIndexes["GlobalIndex"].ProvisionedThroughput.ReadCapacityUnits);
Assert.AreEqual(1, hashRangeTable.GlobalSecondaryIndexNames.Count);
Assert.AreEqual(1, hashRangeTable.HashKeys.Count);
Assert.AreEqual(1, hashRangeTable.RangeKeys.Count);
Assert.AreEqual(2, hashRangeTable.Keys.Count);
Assert.AreEqual(1, hashRangeTable.LocalSecondaryIndexes.Count);
Assert.AreEqual(2, hashRangeTable.LocalSecondaryIndexes["LocalIndex"].KeySchema.Count);
Assert.AreEqual(1, hashRangeTable.LocalSecondaryIndexNames.Count);
}
}
/// <summary>
/// Converts this ExpectedValue instance to Amazon.DynamoDBv2.Model.ExpectedAttributeValue
/// </summary>
/// <param name="conversion">Conversion to use for converting .NET values to DynamoDB values.</param>
/// <returns>Amazon.DynamoDBv2.Model.ExpectedAttributeValue</returns>
public ExpectedAttributeValue ToExpectedAttributeValue(DynamoDBEntryConversion conversion)
{
var eav = new ExpectedAttributeValue();
if (this.Exists)
{
eav.ComparisonOperator = EnumMapper.Convert(this.Comparison);
foreach (var val in this.Values)
{
eav.AttributeValueList.Add(val.ConvertToAttributeValue(new DynamoDBEntry.AttributeConversionConfig(conversion)));
}
}
else
{
eav.Exists = this.Exists;
}
return(eav);
}
/// <summary>
/// Creates a map of attribute names mapped to AttributeValue objects.
/// </summary>
/// <param name="conversion">Conversion to use for converting .NET values to DynamoDB values.</param>
/// <returns></returns>
public Dictionary <string, AttributeValue> ToAttributeMap(DynamoDBEntryConversion conversion)
{
if (conversion == null)
{
throw new ArgumentNullException("conversion");
}
Dictionary <string, AttributeValue> ret = new Dictionary <string, AttributeValue>();
foreach (var attribute in currentValues)
{
AttributeValue value = attribute.Value.ConvertToAttributeValue(new AttributeConversionConfig(conversion));
if (value != null)
{
ret.Add(attribute.Key, value);
}
}
return(ret);
}
private void LoadTables(DynamoDBEntryConversion conversion, out Table hashTable, out Table hashRangeTable)
{
SharedTestFixture.TableCache.Clear();
using (var counter = DynamoDBTestsFixture.CountServiceResponses(Client))
{
// Load table using TryLoadTable API
hashTable = null;
Assert.False(Table.TryLoadTable(Client, "FakeHashTableThatShouldNotExist", conversion, out hashTable));
Assert.Equal(0, counter.ResponseCount);
Assert.True(Table.TryLoadTable(Client, SharedTestFixture.hashTableName, conversion, out hashTable));
Assert.Equal(1, counter.ResponseCount);
Assert.NotNull(hashTable);
Assert.Equal(SharedTestFixture.hashTableName, hashTable.TableName);
Assert.Equal(3, hashTable.Attributes.Count);
Assert.Equal(1, hashTable.GlobalSecondaryIndexes.Count);
Assert.Equal(1, hashTable.GlobalSecondaryIndexNames.Count);
Assert.Equal(1, hashTable.HashKeys.Count);
Assert.Equal(0, hashTable.RangeKeys.Count);
Assert.Equal(1, hashTable.Keys.Count);
Assert.Equal(0, hashTable.LocalSecondaryIndexes.Count);
Assert.Equal(0, hashTable.LocalSecondaryIndexNames.Count);
// Load table using LoadTable API (may throw an exception)
Assert.Throws <ResourceNotFoundException>(() => Table.LoadTable(Client, "FakeHashRangeTableThatShouldNotExist", conversion));
Assert.Equal(1, counter.ResponseCount);
hashRangeTable = Table.LoadTable(Client, SharedTestFixture.hashRangeTableName, conversion);
Assert.Equal(2, counter.ResponseCount);
Assert.NotNull(hashRangeTable);
Assert.Equal(SharedTestFixture.hashRangeTableName, hashRangeTable.TableName);
Assert.Equal(5, hashRangeTable.Attributes.Count);
Assert.Equal(1, hashRangeTable.GlobalSecondaryIndexes.Count);
Assert.Equal(1, hashRangeTable.GlobalSecondaryIndexNames.Count);
Assert.Equal(1, hashRangeTable.HashKeys.Count);
Assert.Equal(1, hashRangeTable.RangeKeys.Count);
Assert.Equal(2, hashRangeTable.Keys.Count);
Assert.Equal(1, hashRangeTable.LocalSecondaryIndexes.Count);
Assert.Equal(2, hashRangeTable.LocalSecondaryIndexes["LocalIndex"].KeySchema.Count);
Assert.Equal(1, hashRangeTable.LocalSecondaryIndexNames.Count);
}
}
public Condition ToCondition(DynamoDBEntryConversion conversion)
{
var attributeValues = AttributeValues;
if (attributeValues == null)
{
attributeValues = new List<AttributeValue>();
foreach(var entry in DynamoDBEntries)
{
var attributeValue = entry.ConvertToAttributeValue(new DynamoDBEntry.AttributeConversionConfig(conversion));
attributeValues.Add(attributeValue);
}
}
var condition = new Condition
{
ComparisonOperator = ComparisonOperator,
AttributeValueList = attributeValues
};
return condition;
}
internal static ExpectedAttributeValue ToExpectedAttributeValue(bool exists, IEnumerable <DynamoDBEntry> values, ScanOperator comparison,
DynamoDBEntryConversion conversion)
{
var eav = new ExpectedAttributeValue();
if (exists)
{
eav.ComparisonOperator = EnumMapper.Convert(comparison);
foreach (var val in values)
{
eav.AttributeValueList.Add(val.ConvertToAttributeValue(new DynamoDBEntry.AttributeConversionConfig(conversion)));
}
}
else
{
eav.Exists = exists;
}
return(eav);
}
internal Dictionary <string, ExpectedAttributeValue> ToExpectedAttributeMap(DynamoDBEntryConversion conversion, IEnumerable <string> epochAttributes)
{
if (conversion == null)
{
throw new ArgumentNullException("conversion");
}
Dictionary <string, ExpectedAttributeValue> ret = new Dictionary <string, ExpectedAttributeValue>();
foreach (var kvp in currentValues)
{
var attributeName = kvp.Key;
var entry = kvp.Value;
ApplyEpochRules(epochAttributes, attributeName, ref entry);
ret.Add(attributeName, entry.ConvertToExpectedAttributeValue(new AttributeConversionConfig(conversion)));
}
return(ret);
}
private Table(IAmazonDynamoDB ddbClient, string tableName, Table.DynamoDBConsumer consumer, DynamoDBEntryConversion conversion)
{
#if (WIN_RT || WINDOWS_PHONE)
DDBClient = ddbClient as AmazonDynamoDBClient;
#else
DDBClient = ddbClient;
#endif
TableConsumer = consumer;
TableName = tableName;
Keys = new Dictionary <string, KeyDescription>();
HashKeys = new List <string>();
RangeKeys = new List <string>();
LocalSecondaryIndexes = new Dictionary <string, LocalSecondaryIndexDescription>();
LocalSecondaryIndexNames = new List <string>();
GlobalSecondaryIndexes = new Dictionary <string, GlobalSecondaryIndexDescription>();
GlobalSecondaryIndexNames = new List <string>();
Attributes = new List <AttributeDefinition>();
Conversion = conversion;
}
public DynamoDBFlatConfig(DynamoDBOperationConfig operationConfig, DynamoDBContextConfig contextConfig)
{
if (operationConfig == null)
{
operationConfig = _emptyOperationConfig;
}
if (contextConfig == null)
{
contextConfig = _emptyContextConfig;
}
bool consistentRead = operationConfig.ConsistentRead ?? contextConfig.ConsistentRead ?? false;
bool skipVersionCheck = operationConfig.SkipVersionCheck ?? contextConfig.SkipVersionCheck ?? false;
bool ignoreNullValues = operationConfig.IgnoreNullValues ?? contextConfig.IgnoreNullValues ?? false;
bool isEmptyStringValueEnabled = operationConfig.IsEmptyStringValueEnabled ?? contextConfig.IsEmptyStringValueEnabled ?? false;
string overrideTableName =
!string.IsNullOrEmpty(operationConfig.OverrideTableName) ? operationConfig.OverrideTableName : string.Empty;
string tableNamePrefix =
!string.IsNullOrEmpty(operationConfig.TableNamePrefix) ? operationConfig.TableNamePrefix :
!string.IsNullOrEmpty(contextConfig.TableNamePrefix) ? contextConfig.TableNamePrefix : string.Empty;
bool backwardQuery = operationConfig.BackwardQuery ?? false;
string indexName =
!string.IsNullOrEmpty(operationConfig.IndexName) ? operationConfig.IndexName : DefaultIndexName;
List <ScanCondition> queryFilter = operationConfig.QueryFilter ?? new List <ScanCondition>();
ConditionalOperatorValues conditionalOperator = operationConfig.ConditionalOperator;
DynamoDBEntryConversion conversion = operationConfig.Conversion ?? contextConfig.Conversion ?? DynamoDBEntryConversion.CurrentConversion;
ConsistentRead = consistentRead;
SkipVersionCheck = skipVersionCheck;
IgnoreNullValues = ignoreNullValues;
IsEmptyStringValueEnabled = isEmptyStringValueEnabled;
OverrideTableName = overrideTableName;
TableNamePrefix = tableNamePrefix;
BackwardQuery = backwardQuery;
IndexName = indexName;
QueryFilter = queryFilter;
ConditionalOperator = conditionalOperator;
Conversion = conversion;
State = new OperationState();
}
/// <summary>
/// Creates a map of attribute names mapped to AttributeValueUpdate objects.
/// </summary>
/// <param name="changedAttributesOnly">If true, only attributes that have been changed will be in the map.</param>
/// <param name="conversion">Conversion to use for converting .NET values to DynamoDB values.</param>
/// <returns></returns>
public Dictionary <string, AttributeValueUpdate> ToAttributeUpdateMap(DynamoDBEntryConversion conversion, bool changedAttributesOnly)
{
if (conversion == null)
{
throw new ArgumentNullException("conversion");
}
Dictionary <string, AttributeValueUpdate> ret = new Dictionary <string, AttributeValueUpdate>();
foreach (var attribute in currentValues)
{
string name = attribute.Key;
DynamoDBEntry value = attribute.Value;
if (!changedAttributesOnly || this.IsAttributeChanged(name))
{
ret.Add(name, value.ConvertToAttributeUpdateValue(new AttributeConversionConfig(conversion)));
}
}
return(ret);
}
public Condition ToCondition(DynamoDBEntryConversion conversion)
{
var attributeValues = AttributeValues;
if (attributeValues == null)
{
attributeValues = new List <AttributeValue>();
foreach (var entry in DynamoDBEntries)
{
var attributeValue = entry.ConvertToAttributeValue(new DynamoDBEntry.AttributeConversionConfig(conversion));
attributeValues.Add(attributeValue);
}
}
var condition = new Condition
{
ComparisonOperator = ComparisonOperator,
AttributeValueList = attributeValues
};
return(condition);
}
private bool TryToScalar(object value, Type type, DynamoDBFlatConfig flatConfig, ref DynamoDBEntry entry)
{
var typeWrapper = TypeFactory.GetTypeInfo(type);
var elementType = Utils.GetElementType(type);
if (elementType != null)
{
IEnumerable enumerable = value as IEnumerable;
// Strings are collections of chars, don't treat them as collections
if (enumerable == null || value is string)
{
// Only convert if value matches collection element type
if (TypeFactory.GetTypeInfo(value.GetType()).IsAssignableFrom(TypeFactory.GetTypeInfo(elementType)))
{
DynamoDBEntryConversion conversion = flatConfig.Conversion;
if (conversion.HasConverter(elementType))
{
if (conversion.TryConvertToEntry(elementType, value, out entry))
{
return(true);
}
}
else
{
try
{
entry = SerializeToDocument(value, elementType, flatConfig);
return(true);
}
catch { }
}
}
}
}
return(false);
}
private void TestEnums(DynamoDBEntryConversion conversion)
{
Product product = new Product
{
Id = 1,
Name = "CloudSpotter",
CompanyName = "CloudsAreGrate",
Price = 1200,
TagSet = new HashSet <string> {
"Prod", "1.0"
},
CurrentStatus = Status.Active,
FormerStatus = Status.Upcoming,
Supports = Support.Unix | Support.Windows,
PreviousSupport = null,
};
// try round-tripping the enums
var doc1 = Context.ToDocument(product);
var product2 = Context.FromDocument <Product>(doc1);
Assert.AreEqual(product.CurrentStatus, product2.CurrentStatus);
Assert.AreEqual(product.FormerStatus, product2.FormerStatus);
Assert.AreEqual(product.Supports, product2.Supports);
// try changing underlying enum data to strings
var doc2 = Context.ToDocument(product);
doc2["CurrentStatus"] = product.CurrentStatus.ToString();
doc2["FormerStatus"] = product.FormerStatus.ToString();
doc2["Supports"] = product.Supports.ToString();
doc2 = doc2.ForceConversion(conversion);
var product3 = Context.FromDocument <Product>(doc2);
Assert.AreEqual(product.CurrentStatus, product3.CurrentStatus);
Assert.AreEqual(product.FormerStatus, product3.FormerStatus);
Assert.AreEqual(product.Supports, product3.Supports);
}
internal static void ApplyExpression(QueryRequest request, DynamoDBEntryConversion conversion,
Expression keyExpression, Expression filterExpression)
{
if (keyExpression == null)
{
keyExpression = new Expression();
}
if (filterExpression == null)
{
filterExpression = new Expression();
}
if (!keyExpression.IsSet && !filterExpression.IsSet)
{
return;
}
if (keyExpression.IsSet)
{
request.KeyConditionExpression = keyExpression.ExpressionStatement;
}
if (filterExpression.IsSet)
{
request.FilterExpression = filterExpression.ExpressionStatement;
}
var kean = keyExpression.ExpressionAttributeNames;
var fean = filterExpression.ExpressionAttributeNames;
var combinedEan = Common.Combine(kean, fean, StringComparer.Ordinal);
request.ExpressionAttributeNames = combinedEan;
var keav = new Document(keyExpression.ExpressionAttributeValues).ForceConversion(conversion);
var feav = new Document(filterExpression.ExpressionAttributeValues).ForceConversion(conversion);
var combinedEav = Common.Combine(keav, feav, null);
request.ExpressionAttributeValues = ConvertToAttributeValues(combinedEav, conversion);
}
internal Dictionary <string, AttributeValueUpdate> ToAttributeUpdateMap(DynamoDBEntryConversion conversion, bool changedAttributesOnly, IEnumerable <string> epochAttributes)
{
if (conversion == null)
{
throw new ArgumentNullException("conversion");
}
Dictionary <string, AttributeValueUpdate> ret = new Dictionary <string, AttributeValueUpdate>();
foreach (var kvp in currentValues)
{
string attributeName = kvp.Key;
DynamoDBEntry entry = kvp.Value;
ApplyEpochRules(epochAttributes, attributeName, ref entry);
if (!changedAttributesOnly || this.IsAttributeChanged(attributeName))
{
ret.Add(attributeName, entry.ConvertToAttributeUpdateValue(new AttributeConversionConfig(conversion)));
}
}
return(ret);
}
private Dictionary <string, ExpectedAttributeValue> ToExpectedAttributeMap(DynamoDBEntryConversion conversion, IEnumerable <string> epochAttributes)
{
Dictionary <string, ExpectedAttributeValue> ret = new Dictionary <string, ExpectedAttributeValue>();
foreach (var kvp in ExpectedValues)
{
string attributeName = kvp.Key;
ExpectedValue expectedValue = kvp.Value;
ExpectedAttributeValue eav;
if (epochAttributes != null && epochAttributes.Contains(attributeName))
{
var values = expectedValue.Values.Select(p => Document.DateTimeToEpochSeconds(p, attributeName)).ToList();
eav = ExpectedValue.ToExpectedAttributeValue(expectedValue.Exists, values, expectedValue.Comparison, conversion);
}
else
{
eav = expectedValue.ToExpectedAttributeValue(conversion);
}
ret[attributeName] = eav;
}
return(ret);
}
internal Dictionary <string, AttributeValue> ConvertToAttributeValues(DynamoDBEntryConversion conversion)
{
var convertedValues = new Dictionary <string, AttributeValue>();
if (this._expressionAttributeValues != null)
{
foreach (var kvp in this.ExpressionAttributeValues)
{
if (kvp.Value == null)
{
convertedValues[kvp.Key] = new AttributeValue {
NULL = true
}
}
;
else
{
convertedValues[kvp.Key] = kvp.Value.ConvertToAttributeValue(new DynamoDBEntry.AttributeConversionConfig(conversion));
}
}
}
return(convertedValues);
}
/// <summary>
/// Converts filter to a map of conditions
/// </summary>
/// <param name="conversion">Conversion to use for converting .NET values to DynamoDB values.</param>
/// <returns>Map from attribute name to condition</returns>
public Dictionary<string, Condition> ToConditions(DynamoDBEntryConversion conversion)
{
var dic = new Dictionary<string, Condition>();
foreach(var kvp in Conditions)
{
string name = kvp.Key;
FilterCondition fc = kvp.Value;
Condition condition = fc.ToCondition(conversion);
dic[name] = condition;
}
return dic;
}
/// <summary>
/// Creates a Table object with the specified name, using the
/// passed-in client to load the table definition.
///
/// This method will throw an exception if the table does not exist.
/// </summary>
/// <param name="ddbClient">Client to use to access DynamoDB.</param>
/// <param name="tableName">Name of the table.</param>
/// <param name="conversion">Conversion to use for converting .NET values to DynamoDB values.</param>
/// <returns>Table object representing the specified table.</returns>
public static Table LoadTable(IAmazonDynamoDB ddbClient, string tableName, DynamoDBEntryConversion conversion)
{
return(LoadTable(ddbClient, tableName, DynamoDBConsumer.DocumentModel, conversion));
}
internal static Table LoadTable(IAmazonDynamoDB ddbClient, string tableName, Table.DynamoDBConsumer consumer, DynamoDBEntryConversion conversion)
{
Table table = new Table(ddbClient, tableName, consumer, conversion);
table.LoadTableInfo();
return(table);
}
// Returns a DynamoDB entry for the given JSON data
private static DynamoDBEntry ToEntry(JsonData data, DynamoDBEntryConversion conversion)
{
if (data == null)
{
return(new DynamoDBNull());
}
if (data.IsObject)
{
var document = new Document();
foreach (var propertyName in data.PropertyNames)
{
var nestedData = data[propertyName];
var entry = ToEntry(nestedData, conversion);
document[propertyName] = entry;
}
return(document);
}
if (data.IsArray)
{
var list = new DynamoDBList();
for (int i = 0; i < data.Count; i++)
{
var item = data[i];
var entry = ToEntry(item, conversion);
list.Add(entry);
}
return(list);
}
if (data.IsBoolean)
{
return(new UnconvertedDynamoDBEntry((bool)data).Convert(conversion));
}
if (data.IsDouble)
{
return(new UnconvertedDynamoDBEntry((double)data).Convert(conversion));
}
if (data.IsInt)
{
return(new UnconvertedDynamoDBEntry((int)data).Convert(conversion));
}
if (data.IsUInt)
{
return(new UnconvertedDynamoDBEntry((uint)data).Convert(conversion));
}
if (data.IsLong)
{
return(new UnconvertedDynamoDBEntry((long)data).Convert(conversion));
}
if (data.IsULong)
{
return(new UnconvertedDynamoDBEntry((ulong)data).Convert(conversion));
}
if (data.IsString)
{
return(new UnconvertedDynamoDBEntry((string)data).Convert(conversion));
}
throw new InvalidOperationException(string.Format(CultureInfo.InvariantCulture,
"Unable to convert JSON data of type {0} to DynamoDB type.", data.GetJsonType()));
}
internal static void ApplyExpression(QueryRequest request, DynamoDBEntryConversion conversion,
Expression keyExpression, Expression filterExpression)
{
if (keyExpression == null)
keyExpression = new Expression();
if (filterExpression == null)
filterExpression = new Expression();
if (!keyExpression.IsSet && !filterExpression.IsSet)
return;
if (keyExpression.IsSet)
request.KeyConditionExpression = keyExpression.ExpressionStatement;
if (filterExpression.IsSet)
request.FilterExpression = filterExpression.ExpressionStatement;
var kean = keyExpression.ExpressionAttributeNames;
var fean = filterExpression.ExpressionAttributeNames;
var combinedEan = Common.Combine(kean, fean, StringComparer.Ordinal);
request.ExpressionAttributeNames = combinedEan;
var keav = new Document(keyExpression.ExpressionAttributeValues).ForceConversion(conversion);
var feav = new Document(filterExpression.ExpressionAttributeValues).ForceConversion(conversion);
var combinedEav = Common.Combine(keav, feav, null);
request.ExpressionAttributeValues = ConvertToAttributeValues(combinedEav, conversion);
}
internal void ApplyExpression(QueryRequest request, DynamoDBEntryConversion conversion)
{
request.FilterExpression = this.ExpressionStatement;
request.ExpressionAttributeNames = new Dictionary<string, string>(this.ExpressionAttributeNames);
request.ExpressionAttributeValues = this.ConvertToAttributeValues(conversion);
}
internal static Dictionary<string, AttributeValue> ConvertToAttributeValues(
Dictionary<string, DynamoDBEntry> valueMap, DynamoDBEntryConversion conversion)
{
var convertedValues = new Dictionary<string, AttributeValue>();
if (valueMap != null)
{
foreach (var kvp in valueMap)
{
if (kvp.Value == null)
convertedValues[kvp.Key] = new AttributeValue { NULL = true };
else
convertedValues[kvp.Key] = kvp.Value.ConvertToAttributeValue(new DynamoDBEntry.AttributeConversionConfig(conversion));
}
}
return convertedValues;
}
/// <summary>
/// Creates a Table object with the specified name, using the
/// passed-in client to load the table definition.
///
/// This method will return false if the table does not exist.
/// </summary>
/// <param name="ddbClient">Client to use to access DynamoDB.</param>
/// <param name="tableName">Name of the table.</param>
/// <param name="conversion">Conversion to use for converting .NET values to DynamoDB values.</param>
/// <param name="table">Loaded table.</param>
/// <returns>
/// True if table was successfully loaded; otherwise false.
/// </returns>
public static bool TryLoadTable(IAmazonDynamoDB ddbClient, string tableName, DynamoDBEntryConversion conversion, out Table table)
{
var config = new TableConfig(tableName, conversion, DynamoDBConsumer.DocumentModel, storeAsEpoch: null);
return(TryLoadTable(ddbClient, config, out table));
}
internal void ApplyExpression(PutItemRequest request, DynamoDBEntryConversion conversion)
{
request.ConditionExpression = this.ExpressionStatement;
request.ExpressionAttributeNames = new Dictionary<string, string>(this.ExpressionAttributeNames);
request.ExpressionAttributeValues = ConvertToAttributeValues(this.ExpressionAttributeValues, conversion);
}
/// <summary>
/// Creates a list of AttributeValues from a list of DynamoDBEntry items
/// </summary>
/// <param name="conversion"></param>
/// <param name="values"></param>
/// <returns></returns>
protected static List<AttributeValue> ConvertToAttributeValues(DynamoDBEntryConversion conversion, params DynamoDBEntry[] values)
{
List<AttributeValue> attributes = new List<AttributeValue>();
foreach (DynamoDBEntry value in values)
{
AttributeValue nativeValue = value.ConvertToAttributeValue(new DynamoDBEntry.AttributeConversionConfig(conversion));
if (nativeValue != null)
{
attributes.Add(nativeValue);
}
}
return attributes;
}
/// <summary>
/// Perform conversion with the given converter.
/// </summary>
/// <param name="conversion"></param>
/// <returns></returns>
public DynamoDBEntry Convert(DynamoDBEntryConversion conversion)
{
var convertedEntry = conversion.ConvertToEntry(ValueType, Value);
return(convertedEntry);
}
/// <summary>
/// Creates a map of attribute names mapped to ExpectedAttributeValue objects.
/// </summary>
/// <param name="conversion">Conversion to use for converting .NET values to DynamoDB values.</param>
/// <returns></returns>
public Dictionary<string, ExpectedAttributeValue> ToExpectedAttributeMap(DynamoDBEntryConversion conversion)
{
Dictionary<string, ExpectedAttributeValue> ret = new Dictionary<string, ExpectedAttributeValue>();
foreach (var kvp in ExpectedValues)
{
string attributeName = kvp.Key;
ExpectedValue expectedValue = kvp.Value;
ExpectedAttributeValue eav = expectedValue.ToExpectedAttributeValue(conversion);
ret[attributeName] = eav;
}
return ret;
}
public AttributeConversionConfig(DynamoDBEntryConversion conversion)
{
Conversion = conversion;
CRT = new CircularReferenceTracking();
}
private Table(IAmazonDynamoDB ddbClient, string tableName, Table.DynamoDBConsumer consumer, DynamoDBEntryConversion conversion)
{
#if PCL || UNITY
DDBClient = ddbClient as AmazonDynamoDBClient;
#else
DDBClient = ddbClient;
#endif
TableInfoCache = SdkCache.GetCache <string, TableDescription>(ddbClient, TableInfoCacheIdentifier, StringComparer.Ordinal);
LoggerInstance = Logger.GetLogger(typeof(SdkCache));
TableConsumer = consumer;
TableName = tableName;
Conversion = conversion;
ClearTableData();
}
// Returns a DynamoDB entry for the given JSON data
private static DynamoDBEntry ToEntry(JsonData data, DynamoDBEntryConversion conversion)
{
if (data == null)
return new DynamoDBNull();
if (data.IsObject)
{
var document = new Document();
foreach (var propertyName in data.PropertyNames)
{
var nestedData = data[propertyName];
var entry = ToEntry(nestedData, conversion);
document[propertyName] = entry;
}
return document;
}
if (data.IsArray)
{
var list = new DynamoDBList();
for(int i=0;i<data.Count;i++)
{
var item = data[i];
var entry = ToEntry(item, conversion);
list.Add(entry);
}
return list;
}
if (data.IsBoolean)
return new UnconvertedDynamoDBEntry((bool)data).Convert(conversion);
if (data.IsDouble)
return new UnconvertedDynamoDBEntry((double)data).Convert(conversion);
if (data.IsInt)
return new UnconvertedDynamoDBEntry((int)data).Convert(conversion);
if (data.IsLong)
return new UnconvertedDynamoDBEntry((long)data).Convert(conversion);
if (data.IsString)
return new UnconvertedDynamoDBEntry((string)data).Convert(conversion);
throw new InvalidOperationException(string.Format(CultureInfo.InvariantCulture,
"Unable to convert JSON data of type {0} to DynamoDB type.", data.GetJsonType()));
}
internal static bool TryLoadTable(IAmazonDynamoDB ddbClient, string tableName, Table.DynamoDBConsumer consumer, DynamoDBEntryConversion conversion, out Table table)
{
try
{
table = LoadTable(ddbClient, tableName, consumer, conversion);
return(true);
}
catch
{
table = null;
return(false);
}
}
// Writes a JSON representation of the given DynamoDBEntry
private static void WriteJson(DynamoDBEntry entry, JsonWriter writer, DynamoDBEntryConversion conversion)
{
entry = entry.ToConvertedEntry(conversion);
var document = entry as Document;
if (document != null)
{
writer.WriteObjectStart();
// Both item attributes and entries in M type are unordered, so sorting by key
// http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModel.html#DataModel.DataTypes
foreach (var kvp in document)
{
var name = kvp.Key;
var value = kvp.Value;
writer.WritePropertyName(name);
WriteJson(value, writer, conversion);
}
writer.WriteObjectEnd();
return;
}
var primitive = entry as Primitive;
if (primitive != null)
{
var type = primitive.Type;
var value = primitive.Value;
WritePrimitive(writer, type, value);
return;
}
var primitiveList = entry as PrimitiveList;
if (primitiveList != null)
{
var itemType = primitiveList.Type;
writer.WriteArrayStart();
foreach (var item in primitiveList.Entries)
{
var itemValue = item.Value;
WritePrimitive(writer, itemType, itemValue);
}
writer.WriteArrayEnd();
return;
}
var ddbList = entry as DynamoDBList;
if (ddbList != null)
{
writer.WriteArrayStart();
foreach(var item in ddbList.Entries)
{
WriteJson(item, writer, conversion);
}
writer.WriteArrayEnd();
return;
}
var ddbBool = entry as DynamoDBBool;
if (ddbBool != null)
{
writer.Write(ddbBool.Value);
return;
}
var ddbNull = entry as DynamoDBNull;
if (ddbNull != null)
{
writer.Write(null);
return;
}
throw new InvalidOperationException(string.Format(CultureInfo.InvariantCulture,
"Unable to convert entry of type {0} to JSON", entry.GetType().FullName));
}
internal Dictionary <string, AttributeValue> ToAttributeMap(Document doc, DynamoDBEntryConversion conversion)
{
return(doc.ToAttributeMap(conversion, this.StoreAsEpoch));
}
private Table(IAmazonDynamoDB ddbClient, string tableName, Table.DynamoDBConsumer consumer, DynamoDBEntryConversion conversion)
{
#if (WIN_RT || WINDOWS_PHONE)
DDBClient = ddbClient as AmazonDynamoDBClient;
#else
DDBClient = ddbClient;
#endif
TableConsumer = consumer;
TableName = tableName;
Keys = new Dictionary<string, KeyDescription>();
HashKeys = new List<string>();
RangeKeys = new List<string>();
LocalSecondaryIndexes = new Dictionary<string, LocalSecondaryIndexDescription>();
LocalSecondaryIndexNames = new List<string>();
GlobalSecondaryIndexes = new Dictionary<string, GlobalSecondaryIndexDescription>();
GlobalSecondaryIndexNames = new List<string>();
Attributes = new List<AttributeDefinition>();
Conversion = conversion;
}
private Table(IAmazonDynamoDB ddbClient, string tableName, Table.DynamoDBConsumer consumer, DynamoDBEntryConversion conversion)
{
#if (WIN_RT || WINDOWS_PHONE || AWSSDK_UNITY)
DDBClient = ddbClient as AmazonDynamoDBClient;
#else
DDBClient = ddbClient;
#endif
TableInfoCache = SdkCache.GetCache<string, TableDescription>(ddbClient, TableInfoCacheIdentifier, StringComparer.Ordinal);
LoggerInstance = Logger.GetLogger(typeof(SdkCache));
TableConsumer = consumer;
TableName = tableName;
Conversion = conversion;
ClearTableData();
}
/// <summary>
/// Creates a Table object with the specified name, using the
/// passed-in client to load the table definition.
///
/// This method return an exception if the table does not exist within the callback.
/// </summary>
/// <param name="ddbClient">Client to use to access DynamoDB.</param>
/// <param name="tableName">Name of the table.</param>
/// <param name="conversion">Conversion to use for converting .NET values to DynamoDB values.</param>
/// <param name="callback">The callback that will be invoked when the asynchronous operation completes.</param>
/// <param name="asyncOptions">An instance of AsyncOptions that specifies how the async method should be executed.</param>
public static void LoadTableAsync(IAmazonDynamoDB ddbClient, string tableName, DynamoDBEntryConversion conversion, AmazonDynamoDBCallback<Table> callback, AsyncOptions asyncOptions = null)
{
LoadTableAsync(ddbClient,tableName, DynamoDBConsumer.DocumentModel, conversion,callback,asyncOptions);
}
// Writes a JSON representation of the given DynamoDBEntry
private static void WriteJson(DynamoDBEntry entry, JsonWriter writer, DynamoDBEntryConversion conversion)
{
entry = entry.ToConvertedEntry(conversion);
var document = entry as Document;
if (document != null)
{
writer.WriteObjectStart();
// Both item attributes and entries in M type are unordered, so sorting by key
// http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModel.html#DataModel.DataTypes
foreach (var kvp in document)
{
var name = kvp.Key;
var value = kvp.Value;
writer.WritePropertyName(name);
WriteJson(value, writer, conversion);
}
writer.WriteObjectEnd();
return;
}
var primitive = entry as Primitive;
if (primitive != null)
{
var type = primitive.Type;
var value = primitive.Value;
WritePrimitive(writer, type, value);
return;
}
var primitiveList = entry as PrimitiveList;
if (primitiveList != null)
{
var itemType = primitiveList.Type;
writer.WriteArrayStart();
foreach (var item in primitiveList.Entries)
{
var itemValue = item.Value;
WritePrimitive(writer, itemType, itemValue);
}
writer.WriteArrayEnd();
return;
}
var ddbList = entry as DynamoDBList;
if (ddbList != null)
{
writer.WriteArrayStart();
foreach (var item in ddbList.Entries)
{
WriteJson(item, writer, conversion);
}
writer.WriteArrayEnd();
return;
}
var ddbBool = entry as DynamoDBBool;
if (ddbBool != null)
{
writer.Write(ddbBool.Value);
return;
}
var ddbNull = entry as DynamoDBNull;
if (ddbNull != null)
{
writer.Write(null);
return;
}
throw new InvalidOperationException(string.Format(CultureInfo.InvariantCulture,
"Unable to convert entry of type {0} to JSON", entry.GetType().FullName));
}
private void TestHashTable(Table hashTable, DynamoDBEntryConversion conversion)
{
// Put an item
Document doc = new Document();
doc["Id"] = 1;
doc["Product"] = "CloudSpotter";
doc["Company"] = "CloudsAreGrate";
doc["IsPublic"] = true;
doc["Price"] = 1200;
doc["Tags"] = new HashSet <string> {
"Prod", "1.0"
};
doc["Aliases"] = new List <string> {
"CS", "Magic"
};
doc["Developers"] = new List <Document>
{
new Document(new Dictionary <string, DynamoDBEntry>
{
{ "Name", "Alan" },
{ "Age", 29 }
}),
new Document(new Dictionary <string, DynamoDBEntry>
{
{ "Name", "Franco" },
{ "Age", 32 }
})
};
doc["Garbage"] = "asdf";
Assert.AreEqual("asdf", doc["Garbage"].AsString());
hashTable.PutItem(doc);
// Get the item by hash key
Document retrieved = hashTable.GetItem(1);
Assert.IsFalse(AreValuesEqual(doc, retrieved));
var convertedDoc = doc.ForceConversion(conversion);
Assert.IsTrue(AreValuesEqual(convertedDoc, retrieved));
// Get the item by document
retrieved = hashTable.GetItem(doc);
// Verify retrieved document
Assert.IsTrue(AreValuesEqual(convertedDoc, retrieved, conversion));
var tagsRetrieved = retrieved["Tags"];
Assert.IsTrue(tagsRetrieved is PrimitiveList);
Assert.AreEqual(2, tagsRetrieved.AsPrimitiveList().Entries.Count);
// Test bool storage for different conversions
var isPublicRetrieved = retrieved["IsPublic"];
if (conversion == DynamoDBEntryConversion.V1)
{
Assert.AreEqual("1", isPublicRetrieved.AsPrimitive().Value as string);
}
else
{
Assert.IsTrue(isPublicRetrieved is DynamoDBBool);
}
// Test HashSet<string> storage for different conversions
var aliasesRetrieved = retrieved["Aliases"];
if (conversion == DynamoDBEntryConversion.V1)
{
Assert.AreEqual(2, aliasesRetrieved.AsPrimitiveList().Entries.Count);
}
else
{
Assert.AreEqual(2, aliasesRetrieved.AsDynamoDBList().Entries.Count);
}
List <Document> developers = retrieved["Developers"].AsListOfDocument();
Assert.AreEqual(2, developers.Count);
AssertExtensions.ExpectException(() => aliasesRetrieved.AsListOfDocument(), typeof(InvalidCastException));
// Update the item
doc["Tags"] = new List <string> {
"Prod", "1.0", "2.0"
};
doc["Developers"] = new DynamoDBList(new List <DynamoDBEntry>
{
new Document(new Dictionary <string, DynamoDBEntry>
{
{ "Name", "Alan" },
{ "Age", 29 }
})
});
// Delete the Garbage attribute
doc["Garbage"] = null;
Assert.IsNull(doc["Garbage"].AsString());
hashTable.UpdateItem(doc);
retrieved = hashTable.GetItem(1);
Assert.IsFalse(AreValuesEqual(doc, retrieved, conversion));
doc.Remove("Garbage");
Assert.IsTrue(AreValuesEqual(doc, retrieved, conversion));
developers = retrieved["Developers"].AsListOfDocument();
Assert.AreEqual(1, developers.Count);
// Create new, circularly-referencing item
Document doc2 = doc.ForceConversion(conversion);
doc2["Id"] = doc2["Id"].AsInt() + 1;
doc2["Price"] = 94;
doc2["Tags"] = null;
doc2["IsPublic"] = false;
doc2["Parent"] = doc2;
AssertExtensions.ExpectException(() => hashTable.UpdateItem(doc2));
// Remove circular reference and save new item
doc2.Remove("Parent");
hashTable.UpdateItem(doc2);
// Scan the hash-key table
var items = hashTable.Scan(new ScanFilter()).GetRemaining();
Assert.AreEqual(2, items.Count);
// Scan by pages
var search = hashTable.Scan(new ScanOperationConfig {
Limit = 1
});
items.Clear();
while (!search.IsDone)
{
var set = search.GetNextSet();
items.AddRange(set);
}
Assert.AreEqual(2, items.Count);
// Query against GlobalIndex
var queryFilter = new QueryFilter("Company", QueryOperator.Equal, "CloudsAreGrate");
queryFilter.AddCondition("Price", QueryOperator.GreaterThan, 100);
search = hashTable.Query(new QueryOperationConfig
{
IndexName = "GlobalIndex",
Filter = queryFilter
});
items = search.GetRemaining();
Assert.AreEqual(1, items.Count);
// Scan for specific tag
var scanFilter = new ScanFilter();
scanFilter.AddCondition("Tags", ScanOperator.Contains, "2.0");
search = hashTable.Scan(scanFilter);
items = search.GetRemaining();
Assert.AreEqual(1, items.Count);
// Delete the item by hash key
hashTable.DeleteItem(1);
Assert.IsNull(hashTable.GetItem(1));
// Delete the item by document
hashTable.DeleteItem(doc2);
Assert.IsNull(hashTable.GetItem(doc2));
// Scan the hash-key table to confirm it is empty
items = hashTable.Scan(new ScanFilter()).GetRemaining();
Assert.AreEqual(0, items.Count);
// Batch-put items
var batchWrite = hashTable.CreateBatchWrite();
batchWrite.AddDocumentToPut(doc);
batchWrite.AddDocumentToPut(doc2);
batchWrite.Execute();
// Batch-get items
var batchGet = hashTable.CreateBatchGet();
batchGet.AddKey(1);
batchGet.AddKey(doc2);
batchGet.Execute();
Assert.AreEqual(2, batchGet.Results.Count);
// Batch-delete items
batchWrite = hashTable.CreateBatchWrite();
batchWrite.AddItemToDelete(doc);
batchWrite.AddKeyToDelete(2);
batchWrite.Execute();
// Batch-get non-existent items
batchGet = hashTable.CreateBatchGet();
batchGet.AddKey(1);
batchGet.AddKey(doc2);
batchGet.Execute();
Assert.AreEqual(0, batchGet.Results.Count);
// Scan the hash-key table to confirm it is empty
items = hashTable.Scan(new ScanFilter()).GetRemaining();
Assert.AreEqual(0, items.Count);
}
/// <summary>
/// Creates a Table object with the specified name, using the
/// passed-in client to load the table definition.
///
/// This method will return false if the table does not exist.
/// </summary>
/// <param name="ddbClient">Client to use to access DynamoDB.</param>
/// <param name="tableName">Name of the table.</param>
/// <param name="conversion">Conversion to use for converting .NET values to DynamoDB values.</param>
/// <param name="table">Loaded table.</param>
/// <returns>
/// True if table was successfully loaded; otherwise false.
/// </returns>
public static bool TryLoadTable(IAmazonDynamoDB ddbClient, string tableName, DynamoDBEntryConversion conversion, out Table table)
{
try
{
table = LoadTable(ddbClient, tableName, conversion);
return true;
}
catch
{
table = null;
return false;
}
}
internal static Table LoadTable(IAmazonDynamoDB ddbClient, string tableName, Table.DynamoDBConsumer consumer, DynamoDBEntryConversion conversion)
{
Table table = new Table(ddbClient, tableName, consumer, conversion);
table.LoadTableInfo();
return table;
}
/// <summary>
/// Creates a Table object with the specified name, using the
/// passed-in client to load the table definition.
///
/// This method will throw an exception if the table does not exist.
/// </summary>
/// <param name="ddbClient">Client to use to access DynamoDB.</param>
/// <param name="tableName">Name of the table.</param>
/// <param name="conversion">Conversion to use for converting .NET values to DynamoDB values.</param>
/// <returns>Table object representing the specified table.</returns>
public static Table LoadTable(IAmazonDynamoDB ddbClient, string tableName, DynamoDBEntryConversion conversion)
{
return LoadTable(ddbClient, tableName, DynamoDBConsumer.DocumentModel, conversion);
}