static int Main(string[] arguments)
{
try
{
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
string connectionString = CM.AppSettings["connectionString"];
if (string.IsNullOrEmpty(connectionString))
{
Console.WriteLine("Connection string not specified");
return(1);
}
CommandLineParser parser = new CommandLineParser();
ParsedCommandLine parsed = parser.Parse(arguments);
if (parsed.PositionalArguments.Count != 0)
{
connectionString = parsed.PositionalArguments[0];
}
using (IrbisConnection connection = new IrbisConnection(connectionString))
{
int maxMfn = connection.GetMaxMfn();
string expression = RequestPrefixes.Unfulfilled /* I=0 */
+ " + "
+ RequestPrefixes.Reserved; /* I=2 */
if (parsed.HaveSwitch("expression"))
{
expression = parsed.GetSwitch("expression")
.ThrowIfNull()
.Value;
}
expression = expression.ThrowIfNull("expression");
Console.Write("Reading good records ");
MarcRecord[] goodRecords = BatchRecordReader.Search
(
connection,
connection.Database,
expression,
1000,
batch => Console.Write(".")
)
.ToArray();
Console.WriteLine();
Console.WriteLine
(
"Good records loaded: {0}",
goodRecords.Length
);
if (goodRecords.Length == maxMfn)
{
Console.WriteLine("No truncation needed, exiting");
return(0);
}
connection.TruncateDatabase(connection.Database);
Console.WriteLine("Database truncated");
using (BatchRecordWriter writer = new BatchRecordWriter
(
connection,
connection.Database,
500
))
{
foreach (MarcRecord record in goodRecords)
{
record.Version = 0;
record.Mfn = 0;
writer.Append(record);
}
}
Console.WriteLine("Good records restored");
stopwatch.Stop();
Console.WriteLine
(
"Elapsed: {0}",
stopwatch.Elapsed.ToAutoString()
);
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
return(1);
}
return(0);
}
