/// <summary>
/// Builds a batch insert URI.
/// </summary>
/// <param name="identifier">The identifier.</param>
/// <returns></returns>
/// <exception cref="System.NotImplementedException"></exception>
public string BuildBatchInsert(Identifier identifier)
{
if (!identifier.CanDescribeTable())
{
throw new ArgumentException(Resources.ResourceBuilder_MinimumForBatchInsertNotMet);
}
return new StringBuilder(identifier.Table).AppendFormat(_appendSegmentFormat, _options.FalseRowKey).ToString();
}
/// <summary>
/// Builds a delete-item URI.
/// </summary>
/// <param name="identifier">The identifier.</param>
public string BuildDeleteItem(Identifier identifier)
{
if (!identifier.CanDescribeRow())
{
throw new ArgumentException(Resources.ResourceBuilder_MinimumForDeleteItemNotMet);
}
return BuildFromIdentifier(identifier).ToString();
}
/// <summary>
/// Builds a single value storage URI.
/// </summary>
/// <param name="identifier">The identifier.</param>
/// <param name="forReading">
/// if set to <c>true</c> this resource will be used for reading.
/// </param>
public string BuildSingleValueAccess(Identifier identifier, bool forReading = false)
{
if (!identifier.CanDescribeCell())
{
throw new ArgumentException(Resources.ResourceBuilder_MinimumForSingleValueAccessNotMet);
}
StringBuilder builder = BuildFromIdentifier(identifier);
return (forReading ? SetMaxVersions(1, builder) : builder).ToString();
}
private static StringBuilder BuildFromIdentifier(Identifier identifier)
{
bool hasTimestamp = identifier.Timestamp.HasValue;
StringBuilder uriBuilder = BuildFromDescriptor(identifier);
bool columnMissing = identifier.CellDescriptor == null || string.IsNullOrEmpty(identifier.CellDescriptor.Column);
if (columnMissing && !hasTimestamp)
{
return uriBuilder;
}
uriBuilder.AppendFormat(_appendSegmentFormat, columnMissing ? _wildCard : identifier.CellDescriptor.Column);
if (!columnMissing && !string.IsNullOrEmpty(identifier.CellDescriptor.Qualifier))
{
uriBuilder.AppendFormat(_appendQualifierFormat, identifier.CellDescriptor.Qualifier);
}
if (hasTimestamp)
{
uriBuilder.AppendFormat(_appendSegmentFormat, identifier.Timestamp);
}
return uriBuilder;
}
/// <summary>
/// Gets the first value with an identifier matching the one specified.
/// </summary>
/// <param name="cellSet">The cell set.</param>
/// <param name="identifier">The identifier.</param>
public static string GetValue(this IEnumerable<Cell> cellSet, Identifier identifier)
{
return cellSet.Where(cell => cell.Identifier.Matches(identifier))
.Select(cell => cell.Value)
.FirstOrDefault();
}
/// <summary>
/// Returns a value indicating whether or not the two identifiers match.
/// If a property has not been set on the other identifier, it will not be included
/// in the evaluation.
/// </summary>
/// <param name="identifier">The identifier.</param>
/// <param name="other">The other identifier.</param>
public static bool Matches(this Identifier identifier, Identifier other)
{
if (!string.IsNullOrEmpty(other.Table) && other.Table != identifier.Table)
{
return false;
}
if (!string.IsNullOrEmpty(other.Row) && other.Row != identifier.Row)
{
return false;
}
HBaseCellDescriptor otherCell = other.CellDescriptor;
HBaseCellDescriptor currentCell = identifier.CellDescriptor;
if (otherCell != null && currentCell != null)
{
if (!string.IsNullOrEmpty(otherCell.Column) && otherCell.Column != currentCell.Column)
{
return false;
}
if (!string.IsNullOrEmpty(otherCell.Qualifier) && otherCell.Qualifier != currentCell.Qualifier)
{
return false;
}
}
return !other.Timestamp.HasValue || other.Timestamp == identifier.Timestamp;
}
/// <summary>
/// Writes the value to HBase using the identifier.
/// </summary>
/// <param name="identifier">The identifier.</param>
/// <param name="value">The value.</param>
public virtual async Task WriteValueAsync(Identifier identifier, string value)
{
string contentType = Options.ContentType;
string resource = _resourceBuilder.BuildSingleValueAccess(identifier);
string content = _converter.ConvertCell(new Cell(identifier, value));
IRestResponse response = await SendRequestAsync(Method.POST, resource, contentType, contentType, content);
_errorProvider.ThrowIfStatusMismatch(response, HttpStatusCode.OK);
}
/// <summary>
/// Reads the value with the matching identifier.
/// </summary>
/// <param name="identifier">The identifier.</param>
public string ReadValue(Identifier identifier)
{
string resource = identifier.Timestamp.HasValue
? _resourceBuilder.BuildCellOrRowQuery(identifier.ToQuery())
: _resourceBuilder.BuildSingleValueAccess(identifier, true);
IRestResponse response = SendRequest(Method.GET, resource, Options.ContentType);
_errorProvider.ThrowIfStatusMismatch(response, HttpStatusCode.OK, HttpStatusCode.NotFound);
return _converter.ConvertCells(response.Content, identifier.Table)
.Select(cell => cell.Value)
.FirstOrDefault();
}
/// <summary>
/// Deletes the item with the matching identifier from HBase.
/// </summary>
/// <param name="identifier">The identifier.</param>
public void DeleteItem(Identifier identifier)
{
string resource = _resourceBuilder.BuildDeleteItem(identifier);
IRestResponse response = SendRequest(Method.DELETE, resource, Options.ContentType);
_errorProvider.ThrowIfStatusMismatch(response, HttpStatusCode.OK);
}
/// <summary>
/// Writes the cells to HBase.
/// </summary>
/// <param name="cells">The cells.</param>
public void WriteCells(CellSet cells)
{
string contentType = Options.ContentType;
var tableIdentifier = new Identifier { Table = cells.Table };
string resource = _resourceBuilder.BuildBatchInsert(tableIdentifier);
IRestResponse response = SendRequest(Method.POST, resource, contentType, contentType, _converter.ConvertCells(cells));
_errorProvider.ThrowIfStatusMismatch(response, HttpStatusCode.OK);
}
private static Identifier GetIdentifier(Table options)
{
var descriptor = options.CreateInstance<TestDescriptor>();
var identifier = new Identifier
{
Table = descriptor.Table,
Row = descriptor.Row,
CellDescriptor = new HBaseCellDescriptor
{
Column = descriptor.Column,
Qualifier = descriptor.Qualifier
},
Timestamp = descriptor.Timestamp
};
return identifier;
}
