public virtual Dictionary <string, AttributeValue> ToAttributeValues(IPocoDynamo db, object instance, DynamoMetadataType table)
{
var ret = ToAttributeValuesFn?.Invoke(instance, table);
if (ret != null)
{
return(ret);
}
using (AwsClientUtils.GetJsScope())
{
var to = new Dictionary <string, AttributeValue>();
foreach (var field in table.Fields)
{
var value = field.GetValue(instance);
value = ApplyFieldBehavior(db, table, field, instance, value);
if (value == null)
{
if (DynamoConfig.ExcludeNullValues || field.ExcludeNullValue)
{
continue;
}
}
to[field.Name] = ToAttributeValue(db, field.Type, field.DbType, value);
}
return(to);
}
}
private bool CacheSet <T>(string key, T value, DateTime?expiresAt)
{
var now = DateTime.UtcNow;
string json = AwsClientUtils.ToScopedJson(value);
var entry = new CacheEntry
{
Id = key,
Data = json,
CreatedDate = now,
ModifiedDate = now,
ExpiryDate = expiresAt,
};
Exception lastEx = null;
var i = 0;
var firstAttempt = DateTime.UtcNow;
while (DateTime.UtcNow - firstAttempt < Dynamo.MaxRetryOnExceptionTimeout)
{
i++;
try
{
Dynamo.PutItem(entry);
return(true);
}
catch (ResourceNotFoundException ex)
{
lastEx = ex;
i.SleepBackOffMultiplier(); //Table could temporarily not exist after a FlushAll()
}
}
throw new TimeoutException($"Exceeded timeout of {Dynamo.MaxRetryOnExceptionTimeout}", lastEx);
}
public virtual Dictionary <string, AttributeValue> ToAttributeKeyValue(IPocoDynamo db, DynamoMetadataField field, object hash)
{
using (AwsClientUtils.GetJsScope())
{
return(new Dictionary <string, AttributeValue> {
{ field.Name, ToAttributeValue(db, field.Type, field.DbType, hash) },
});
}
}
public virtual Dictionary <string, AttributeValue> ToAttributeKeyValue(IPocoDynamo db, DynamoMetadataType table, DynamoId id)
{
using (AwsClientUtils.GetJsScope())
{
return(new Dictionary <string, AttributeValue> {
{ table.HashKey.Name, ToAttributeValue(db, table.HashKey.Type, table.HashKey.DbType, id.Hash) },
{ table.RangeKey.Name, ToAttributeValue(db, table.RangeKey.Type, table.RangeKey.DbType, id.Range) },
});
}
}
public virtual Dictionary <string, AttributeValue> ToAttributeKeyValue(IPocoDynamo db, DynamoMetadataType table, object hash, object range)
{
using (AwsClientUtils.GetJsScope())
{
var to = new Dictionary <string, AttributeValue> {
{ table.HashKey.Name, ToAttributeValue(db, table.HashKey.Type, table.HashKey.DbType, hash) },
};
if (range != null)
{
to[table.RangeKey.Name] = ToAttributeValue(db, table.RangeKey.Type, table.RangeKey.DbType, range);
}
return(to);
}
}
public virtual Dictionary <string, AttributeValue> ToAttributeKey(IPocoDynamo db, DynamoMetadataType table, object instance)
{
using (AwsClientUtils.GetJsScope())
{
var field = table.HashKey;
var to = new Dictionary <string, AttributeValue> {
{ field.Name, ToAttributeValue(db, field.Type, field.DbType, field.GetValue(instance)) },
};
if (table.RangeKey != null)
{
field = table.RangeKey;
to[field.Name] = ToAttributeValue(db, field.Type, field.DbType, field.GetValue(instance));
}
return(to);
}
}
public virtual Dictionary <string, AttributeValueUpdate> ToNonDefaultAttributeValueUpdates(IPocoDynamo db, object instance, DynamoMetadataType table)
{
using (AwsClientUtils.GetJsScope())
{
var to = new Dictionary <string, AttributeValueUpdate>();
foreach (var field in table.Fields)
{
if (field.IsHashKey || field.IsRangeKey)
{
continue;
}
var value = field.GetValue(instance);
if (value == null)
{
continue;
}
to[field.Name] = new AttributeValueUpdate(ToAttributeValue(db, field.Type, field.DbType, value), DynamoAttributeAction.Put);
}
return(to);
}
}
