protected override void BeginProcessing()
{
var opener = new ConnectionSpecifier(FileOrName, Connection, null, null);
_connection = opener.Connection;
_connectionOpened = opener.ConnectionOpened;
try
{
if (_connection == null)
{
WriteError(new ErrorRecord(new RuntimeException("Can't open a connection"), "", ErrorCategory.NotSpecified, null));
throw new PipelineStoppedException();
}
// ODBC and OLEDB Access connections fail to obtain the corresponding factories.
if (_connection is System.Data.Odbc.OdbcConnection)
{
_factory = DbProviderFactories.GetFactory("System.Data.Odbc");
}
else if (_connection is System.Data.OleDb.OleDbConnection)
{
_factory = DbProviderFactories.GetFactory("System.Data.OleDb");
}
else
{
_factory = DbProviderFactories.GetFactory(_connection);
}
if (_factory == null)
{
WriteError(new ErrorRecord(new RuntimeException("Failed to obtain a DbProviderFactory object"), "", ErrorCategory.NotSpecified, null));
throw new PipelineStoppedException();
}
_builder = _factory.CreateCommandBuilder();
// Supply a command builder with an adaptor object because some providers' builders
// (including those of ODBC and OLEDB Access) require an active connection to make QuoteIndentifier() work.
using (var adaptor = _factory.CreateDataAdapter())
using (var cmd = _connection.CreateCommand())
{
cmd.CommandText = "select 1";
adaptor.SelectCommand = cmd;
_builder.DataAdapter = adaptor;
}
_useNamedParameters = false;
}
catch (Exception e)
{
DisposeResources();
WriteError(new ErrorRecord(e, "", ErrorCategory.NotSpecified, null));
throw new PipelineStoppedException();
}
}
protected override void EndProcessing()
{
try {
var opener = new ConnectionSpecifier(FileOrName, null, ProviderName, ConnectionString);
WriteObject(opener.Connection);
}
catch (Exception ex) {
WriteError(new ErrorRecord(ex, "", ErrorCategory.NotSpecified, null));
}
}
protected override void EndProcessing()
{
var opener = new ConnectionSpecifier(FileOrName, Connection, null, null);
var connection = opener.Connection;
var connectionOpen = opener.ConnectionOpened;
try
{
DataTable schema;
if (CollectionName != null && CollectionName != "")
{
schema = connection.GetSchema(CollectionName);
}
else
{
schema = connection.GetSchema();
}
try
{
foreach (var row in schema.Rows)
{
WriteObject(row);
}
}
finally
{
schema.Dispose();
}
}
catch (Exception ex)
{
WriteError(new ErrorRecord(ex, "", ErrorCategory.NotSpecified, null));
}
finally
{
if (connectionOpen)
{
connection.Close();
connection.Dispose();
}
}
}
protected override void EndProcessing()
{
var opener = new ConnectionSpecifier(FileOrName, Connection, null, null);
var connection = opener.Connection;
bool connectionOpened = opener.ConnectionOpened;
try {
using (DbCommand cmd = connection.CreateCommand())
{
cmd.CommandText = Query;
if (MyInvocation.BoundParameters.ContainsKey("Timeout"))
{
cmd.CommandTimeout = Timeout;
}
if (Parameters != null)
{
if (Parameters is IDictionary dictParam)
{
foreach (DictionaryEntry entry in dictParam)
{
object value;
if (entry.Value is PSObject psobj)
{
value = psobj.BaseObject;
}
else
{
value = entry.Value;
}
var param = cmd.CreateParameter();
param.ParameterName = (string)entry.Key;
param.Value = value;
cmd.Parameters.Add(param);
}
}
else
{
ICollection parameters;
if (Parameters is ICollection col)
{
parameters = col;
}
else
{
parameters = new object[] { Parameters }
};
foreach (var v in parameters)
{
object value;
if (v is PSObject psobj)
{
value = psobj.BaseObject;
}
else
{
value = v;
}
var param = cmd.CreateParameter();
param.Value = value;
cmd.Parameters.Add(param);
}
}
}
if (AsDataRow || AsDataTable)
{
var factory = DbProviderFactories.GetFactory(connection);
using (var adaptor = factory.CreateDataAdapter())
using (var dataSet = new DataSet())
{
adaptor.SelectCommand = cmd;
adaptor.Fill(dataSet);
GetDataQueryResult.RecordsAffected = -1;
if (AsDataTable)
{
WriteObject(dataSet.Tables[0]);
}
else
{
foreach (var row in dataSet.Tables[0].Rows)
{
WriteObject(row);
}
}
}
}
else
{
using (var reader = cmd.ExecuteReader())
{
GetDataQueryResult.RecordsAffected = reader.RecordsAffected;
var count = reader.FieldCount;
string[] fieldNames = new string[count];
var nameHash = new HashSet <string>();
for (int i = 0; i < count; ++i)
{
var name = reader.GetName(i);
var suffix = 1;
while (nameHash.Contains(name))
{
name = reader.GetName(i) + suffix++;
}
fieldNames[i] = name;
nameHash.Add(name);
}
while (reader.Read())
{
var obj = new PSObject();
var exprCount = 1;
for (int i = 0; i < count; ++i)
{
object value = null;
if (PreserveDbNull || !reader.IsDBNull(i))
{
value = reader.GetValue(i);
}
PSNoteProperty prop;
try
{
prop = new PSNoteProperty(fieldNames[i], value);
}
catch (PSArgumentException)
{
prop = new PSNoteProperty("Expr" + exprCount, value);
++exprCount;
}
obj.Properties.Add(prop);
}
WriteObject(obj);
}
}
}
if (ShowRecordsAffected)
{
WriteObject(GetDataQueryResult.RecordsAffected);
}
}
}
catch (Exception e) {
WriteError(new ErrorRecord(e, "", ErrorCategory.NotSpecified, null));
}
finally {
if (connectionOpened)
{
connection.Close();
connection.Dispose();
}
}
}
