private void _goButton_Click
(
object sender,
EventArgs e
)
{
_console.Clear();
string searchExpression = _searchBox.Text.Trim();
if (string.IsNullOrEmpty(searchExpression))
{
return;
}
try
{
int counter = 0;
string programText = _programBox.Text;
IrbisProvider provider
= new ConnectedClient(Connection);
PftFormatter formatter = new PftFormatter();
formatter.SetProvider(provider);
formatter.ParseProgram(programText);
formatter.Context.Functions.Add("print", _Printer);
DatabaseInfo database = (DatabaseInfo)_dbBox.SelectedItem;
string databaseName = database.Name.ThrowIfNull();
SearchParameters parameters = new SearchParameters
{
Database = databaseName,
SearchExpression = searchExpression
};
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
int[] found = Connection.SequentialSearch(parameters);
Output.WriteLine("Found: {0}", found.Length);
BatchRecordReader batch = new BatchRecordReader
(
Connection,
databaseName,
500,
found
);
using (BatchRecordWriter buffer = new BatchRecordWriter
(
Connection,
databaseName,
100
))
{
foreach (MarcRecord record in batch)
{
record.Modified = false;
formatter.Context.ClearAll();
string text = formatter.FormatRecord(record);
if (!string.IsNullOrEmpty(text))
{
Output.WriteLine(text);
}
if (record.Modified)
{
counter++;
Output.WriteLine
(
"[{0}] modified",
record.Mfn
);
buffer.Append(record);
}
Application.DoEvents();
}
}
stopwatch.Stop();
Output.WriteLine(string.Empty);
Output.WriteLine("Done: {0}", stopwatch.Elapsed);
Output.WriteLine("Records modified: {0}", counter);
Output.WriteLine(string.Empty);
}
catch (Exception ex)
{
Output.WriteLine("Exception: {0}", ex);
}
}
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);
}
