internal static Document FromAttributeMap(Dictionary <string, AttributeValue> data, IEnumerable <string> epochAttributes)
{
Document doc = new Document();
if (data != null)
{
// Add Primitives and PrimitiveLists
foreach (var attribute in data)
{
string wholeKey = attribute.Key;
AttributeValue value = attribute.Value;
DynamoDBEntry convertedValue = AttributeValueToDynamoDBEntry(value);
if (convertedValue != null)
{
doc.currentValues[wholeKey] = convertedValue;
}
}
}
if (epochAttributes != null)
{
foreach (var epochAttribute in epochAttributes)
{
DynamoDBEntry epochEntry;
if (doc.currentValues.TryGetValue(epochAttribute, out epochEntry))
{
doc.currentValues[epochAttribute] = EpochSecondsToDateTime(epochEntry, epochAttribute);
}
}
}
doc.CommitChanges();
return(doc);
}
internal Document PutItemHelper(Document doc, PutItemOperationConfig config, bool isAsync)
{
var currentConfig = config ?? new PutItemOperationConfig();
PutItemRequest req = new PutItemRequest
{
TableName = TableName,
Item = doc.ToAttributeMap()
};
req.BeforeRequestEvent += isAsync ?
new RequestEventHandler(UserAgentRequestEventHandlerAsync) :
new RequestEventHandler(UserAgentRequestEventHandlerSync);
if (currentConfig.Expected != null)
{
req.Expected = currentConfig.Expected.ToExpectedAttributeMap();
}
if (currentConfig.ReturnValues == ReturnValues.AllOldAttributes)
{
req.ReturnValues = EnumToStringMapper.Convert(currentConfig.ReturnValues);
}
var resp = DDBClient.PutItem(req);
doc.CommitChanges();
Document ret = null;
if (currentConfig.ReturnValues == ReturnValues.AllOldAttributes)
{
ret = Document.FromAttributeMap(resp.Attributes);
}
return(ret);
}
internal Document UpdateHelper(Document doc, Key key, UpdateItemOperationConfig config, bool isAsync)
{
var currentConfig = config ?? new UpdateItemOperationConfig();
// If the keys have been changed, treat entire document as having changed
bool haveKeysChanged = HaveKeysChanged(doc);
bool updateChangedAttributesOnly = !haveKeysChanged;
var attributeUpdates = doc.ToAttributeUpdateMap(updateChangedAttributesOnly);
foreach (var keyName in this.keyNames)
{
attributeUpdates.Remove(keyName);
}
UpdateItemRequest req = new UpdateItemRequest
{
TableName = TableName,
Key = key,
AttributeUpdates = attributeUpdates.Count == 0 ? null : attributeUpdates, // pass null if keys-only update
ReturnValues = EnumMapper.Convert(currentConfig.ReturnValues)
};
req.BeforeRequestEvent += isAsync ?
new RequestEventHandler(UserAgentRequestEventHandlerAsync) :
new RequestEventHandler(UserAgentRequestEventHandlerSync);
if (currentConfig.Expected != null && currentConfig.ExpectedState != null)
{
throw new InvalidOperationException("Expected and ExpectedState cannot be set at the same time");
}
if (currentConfig.Expected != null)
{
req.Expected = currentConfig.Expected.ToExpectedAttributeMap();
}
if (currentConfig.ExpectedState != null &&
currentConfig.ExpectedState.ExpectedValues != null &&
currentConfig.ExpectedState.ExpectedValues.Count > 0)
{
req.Expected = currentConfig.ExpectedState.ToExpectedAttributeMap();
if (req.Expected.Count > 1)
{
req.ConditionalOperator = EnumMapper.Convert(currentConfig.ExpectedState.ConditionalOperator);
}
}
var resp = DDBClient.UpdateItem(req);
var returnedAttributes = resp.Attributes;
doc.CommitChanges();
Document ret = null;
if (currentConfig.ReturnValues != ReturnValues.None)
{
ret = Document.FromAttributeMap(returnedAttributes);
}
return(ret);
}
internal Document PutItemHelper(Document doc, PutItemOperationConfig config, bool isAsync)
{
var currentConfig = config ?? new PutItemOperationConfig();
PutItemRequest req = new PutItemRequest
{
TableName = TableName,
Item = doc.ToAttributeMap(Conversion)
};
((Amazon.Runtime.Internal.IAmazonWebServiceRequest)req).AddBeforeRequestHandler(isAsync ?
new RequestEventHandler(UserAgentRequestEventHandlerAsync) :
new RequestEventHandler(UserAgentRequestEventHandlerSync));
if (currentConfig.ReturnValues == ReturnValues.AllOldAttributes)
{
req.ReturnValues = EnumMapper.Convert(currentConfig.ReturnValues);
}
ValidateConditional(currentConfig);
if (currentConfig.Expected != null)
{
req.Expected = currentConfig.Expected.ToExpectedAttributeMap(Conversion);
}
else if (currentConfig.ExpectedState != null &&
currentConfig.ExpectedState.ExpectedValues != null &&
currentConfig.ExpectedState.ExpectedValues.Count > 0)
{
req.Expected = currentConfig.ExpectedState.ToExpectedAttributeMap(Conversion);
if (req.Expected.Count > 1)
{
req.ConditionalOperator = EnumMapper.Convert(currentConfig.ExpectedState.ConditionalOperator);
}
}
else if (currentConfig.ConditionalExpression != null && currentConfig.ConditionalExpression.IsSet)
{
currentConfig.ConditionalExpression.ApplyExpression(req, this.Conversion);
}
var resp = DDBClient.PutItem(req);
doc.CommitChanges();
Document ret = null;
if (currentConfig.ReturnValues == ReturnValues.AllOldAttributes)
{
ret = Document.FromAttributeMap(resp.Attributes);
}
return(ret);
}
internal async Task <Document> PutItemHelperAsync(Document doc, PutItemOperationConfig config, CancellationToken cancellationToken)
{
var currentConfig = config ?? new PutItemOperationConfig();
PutItemRequest req = new PutItemRequest
{
TableName = TableName,
Item = this.ToAttributeMap(doc)
};
this.AddRequestHandler(req, isAsync: true);
if (currentConfig.ReturnValues == ReturnValues.AllOldAttributes)
{
req.ReturnValues = EnumMapper.Convert(currentConfig.ReturnValues);
}
ValidateConditional(currentConfig);
if (currentConfig.Expected != null)
{
req.Expected = this.ToExpectedAttributeMap(currentConfig.Expected);
}
else if (currentConfig.ExpectedState != null &&
currentConfig.ExpectedState.ExpectedValues != null &&
currentConfig.ExpectedState.ExpectedValues.Count > 0)
{
req.Expected = currentConfig.ExpectedState.ToExpectedAttributeMap(this);
if (req.Expected.Count > 1)
{
req.ConditionalOperator = EnumMapper.Convert(currentConfig.ExpectedState.ConditionalOperator);
}
}
else if (currentConfig.ConditionalExpression != null && currentConfig.ConditionalExpression.IsSet)
{
currentConfig.ConditionalExpression.ApplyExpression(req, this);
}
var resp = await DDBClient.PutItemAsync(req, cancellationToken).ConfigureAwait(false);
doc.CommitChanges();
Document ret = null;
if (currentConfig.ReturnValues == ReturnValues.AllOldAttributes)
{
ret = this.FromAttributeMap(resp.Attributes);
}
return(ret);
}
internal Document PutItemHelper(Document doc, PutItemOperationConfig config, bool isAsync)
{
var currentConfig = config ?? new PutItemOperationConfig();
PutItemRequest req = new PutItemRequest
{
TableName = TableName,
Item = doc.ToAttributeMap()
};
req.BeforeRequestEvent += isAsync ?
new RequestEventHandler(UserAgentRequestEventHandlerAsync) :
new RequestEventHandler(UserAgentRequestEventHandlerSync);
if (currentConfig.ReturnValues == ReturnValues.AllOldAttributes)
{
req.ReturnValues = EnumMapper.Convert(currentConfig.ReturnValues);
}
if (currentConfig.Expected != null && currentConfig.ExpectedState != null)
{
throw new InvalidOperationException("Expected and ExpectedState cannot be set at the same time");
}
if (currentConfig.Expected != null)
{
req.Expected = currentConfig.Expected.ToExpectedAttributeMap();
}
if (currentConfig.ExpectedState != null &&
currentConfig.ExpectedState.ExpectedValues != null &&
currentConfig.ExpectedState.ExpectedValues.Count > 0)
{
req.Expected = currentConfig.ExpectedState.ToExpectedAttributeMap();
if (req.Expected.Count > 1)
{
req.ConditionalOperator = EnumMapper.Convert(currentConfig.ExpectedState.ConditionalOperator);
}
}
var resp = DDBClient.PutItem(req);
doc.CommitChanges();
Document ret = null;
if (currentConfig.ReturnValues == ReturnValues.AllOldAttributes)
{
ret = Document.FromAttributeMap(resp.Attributes);
}
return(ret);
}
/// <summary>
/// Creates a Document from an attribute map.
/// </summary>
/// <param name="data">Map of attribute names to attribute values.</param>
/// <returns>Document representing the data.</returns>
public static Document FromAttributeMap(Dictionary <string, AttributeValue> data)
{
Document doc = new Document();
if (data != null)
{
// Add Primitives and PrimitiveLists
foreach (var attribute in data)
{
string wholeKey = attribute.Key;
AttributeValue value = attribute.Value;
DynamoDBEntry convertedValue = AttributeValueToDynamoDBEntry(value);
if (convertedValue != null)
{
doc.currentValues[wholeKey] = convertedValue;
}
}
}
doc.CommitChanges();
return(doc);
}
internal async Task <Document> UpdateHelperAsync(Document doc, Key key, UpdateItemOperationConfig config, CancellationToken cancellationToken)
{
var currentConfig = config ?? new UpdateItemOperationConfig();
// If the keys have been changed, treat entire document as having changed
bool haveKeysChanged = HaveKeysChanged(doc);
bool updateChangedAttributesOnly = !haveKeysChanged;
var attributeUpdates = this.ToAttributeUpdateMap(doc, updateChangedAttributesOnly);
foreach (var keyName in this.KeyNames)
{
attributeUpdates.Remove(keyName);
}
UpdateItemRequest req = new UpdateItemRequest
{
TableName = TableName,
Key = key,
AttributeUpdates = attributeUpdates.Count == 0 ? null : attributeUpdates, // pass null if keys-only update
ReturnValues = EnumMapper.Convert(currentConfig.ReturnValues)
};
this.AddRequestHandler(req, isAsync: true);
ValidateConditional(currentConfig);
if (currentConfig.Expected != null)
{
req.Expected = this.ToExpectedAttributeMap(currentConfig.Expected);
}
else if (currentConfig.ExpectedState != null &&
currentConfig.ExpectedState.ExpectedValues != null &&
currentConfig.ExpectedState.ExpectedValues.Count > 0)
{
req.Expected = currentConfig.ExpectedState.ToExpectedAttributeMap(this);
if (req.Expected.Count > 1)
{
req.ConditionalOperator = EnumMapper.Convert(currentConfig.ExpectedState.ConditionalOperator);
}
}
else if (currentConfig.ConditionalExpression != null && currentConfig.ConditionalExpression.IsSet)
{
currentConfig.ConditionalExpression.ApplyExpression(req, this);
string statement;
Dictionary <string, AttributeValue> expressionAttributeValues;
Dictionary <string, string> expressionAttributeNames;
Common.ConvertAttributeUpdatesToUpdateExpression(attributeUpdates, out statement, out expressionAttributeValues, out expressionAttributeNames);
req.AttributeUpdates = null;
req.UpdateExpression = statement;
if (req.ExpressionAttributeValues == null)
{
req.ExpressionAttributeValues = expressionAttributeValues;
}
else
{
foreach (var kvp in expressionAttributeValues)
{
req.ExpressionAttributeValues.Add(kvp.Key, kvp.Value);
}
}
if (req.ExpressionAttributeNames == null)
{
req.ExpressionAttributeNames = expressionAttributeNames;
}
else
{
foreach (var kvp in expressionAttributeNames)
{
req.ExpressionAttributeNames.Add(kvp.Key, kvp.Value);
}
}
}
var resp = await DDBClient.UpdateItemAsync(req, cancellationToken).ConfigureAwait(false);
var returnedAttributes = resp.Attributes;
doc.CommitChanges();
Document ret = null;
if (currentConfig.ReturnValues != ReturnValues.None)
{
ret = this.FromAttributeMap(returnedAttributes);
}
return(ret);
}
internal Document UpdateHelper(Document doc, Key key, UpdateItemOperationConfig config, bool isAsync)
{
var currentConfig = config ?? new UpdateItemOperationConfig();
// If the keys have been changed, treat entire document as having changed
bool haveKeysChanged = HaveKeysChanged(doc);
bool updateChangedAttributesOnly = !haveKeysChanged;
var attributeUpdates = doc.ToAttributeUpdateMap(Conversion, updateChangedAttributesOnly);
foreach (var keyName in this.KeyNames)
{
attributeUpdates.Remove(keyName);
}
UpdateItemRequest req = new UpdateItemRequest
{
TableName = TableName,
Key = key,
AttributeUpdates = attributeUpdates.Count == 0 ? null : attributeUpdates, // pass null if keys-only update
ReturnValues = EnumMapper.Convert(currentConfig.ReturnValues)
};
((Amazon.Runtime.Internal.IAmazonWebServiceRequest)req).AddBeforeRequestHandler(isAsync ?
new RequestEventHandler(UserAgentRequestEventHandlerAsync) :
new RequestEventHandler(UserAgentRequestEventHandlerSync)
);
ValidateConditional(currentConfig);
if (currentConfig.Expected != null)
{
req.Expected = currentConfig.Expected.ToExpectedAttributeMap(Conversion);
}
else if (currentConfig.ExpectedState != null &&
currentConfig.ExpectedState.ExpectedValues != null &&
currentConfig.ExpectedState.ExpectedValues.Count > 0)
{
req.Expected = currentConfig.ExpectedState.ToExpectedAttributeMap(Conversion);
if (req.Expected.Count > 1)
{
req.ConditionalOperator = EnumMapper.Convert(currentConfig.ExpectedState.ConditionalOperator);
}
}
else if (currentConfig.ConditionalExpression != null && currentConfig.ConditionalExpression.IsSet)
{
currentConfig.ConditionalExpression.ApplyExpression(req, this.Conversion);
string statement;
Dictionary <string, AttributeValue> expressionAttributeValues;
Dictionary <string, string> expressionAttributeNames;
Common.ConvertAttributeUpdatesToUpdateExpression(attributeUpdates, out statement, out expressionAttributeValues, out expressionAttributeNames);
req.AttributeUpdates = null;
req.UpdateExpression = statement;
if (req.ExpressionAttributeValues == null)
{
req.ExpressionAttributeValues = expressionAttributeValues;
}
else
{
foreach (var kvp in expressionAttributeValues)
{
req.ExpressionAttributeValues.Add(kvp.Key, kvp.Value);
}
}
if (req.ExpressionAttributeNames == null)
{
req.ExpressionAttributeNames = expressionAttributeNames;
}
else
{
foreach (var kvp in expressionAttributeNames)
{
req.ExpressionAttributeNames.Add(kvp.Key, kvp.Value);
}
}
}
var resp = DDBClient.UpdateItem(req);
var returnedAttributes = resp.Attributes;
doc.CommitChanges();
Document ret = null;
if (currentConfig.ReturnValues != ReturnValues.None)
{
ret = Document.FromAttributeMap(returnedAttributes);
}
return(ret);
}