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ImportForm.cs
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/**************************************************************************
Copyright (C) 2011-2014 Iván Costales Suárez
This file is part of CompactView.
CompactView is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
CompactView is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with CompactView. If not, see <http://www.gnu.org/licenses/>.
CompactView web site <http://sourceforge.net/p/compactview/>.
**************************************************************************/
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Common;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
using System.Windows.Forms;
namespace CompactView
{
public partial class ImportForm : Form
{
private SqlCeDb db;
private bool abort = false;
private List<string> ddl;
public ImportForm(SqlCeDb sqlCeDb, string fileName)
{
InitializeComponent();
SetCultureTexts();
statusStrip1_SizeChanged(null, null);
db = sqlCeDb;
FillTreeDb(fileName);
}
private void SetCultureTexts()
{
Text = GlobalText.GetValue("Import");
btnImport.Text = GlobalText.GetValue("Import");
cbSchema.Text = GlobalText.GetValue("Schema");
cbData.Text = GlobalText.GetValue("Data");
}
private void FillTreeDb(string fileName)
{
bool schema = false;
bool data = false;
bool ok = false;
string cmdError = null;
treeDb.Nodes.Clear();
treeDb.BeginUpdate();
var reader = new StreamReader(fileName);
ddl = new List<string>();
// Regular expression to search texts finished with semicolons that is not between single quotes
for (Match m = Regex.Match(reader.ReadToEnd(), @"(?:[^;']|'[^']*')+;\s*", RegexOptions.Compiled); m.Success; m = m.NextMatch())
ddl.Add(m.Value.TrimEnd('\r', '\n'));
RegexOptions options = RegexOptions.Compiled | RegexOptions.Singleline | RegexOptions.IgnoreCase;
var regexCreateTable = new Regex(@"(?<=^CREATE\s+TABLE\s+\[)[^\]]*(?=\]\s+\([^\)]*\))", options);
var regexInsert = new Regex(@"(?<=^INSERT\s+INTO\s+\[)[^\]]*(?=\]\s+\([^\)]*\)\s+VALUES\s+\([^\)]*\))", options);
var regexAlterTable = new Regex(@"^ALTER\s+TABLE\s+\[", options);
var regexCreateIndex = new Regex(@"^CREATE\s+.*INDEX\s+", options);
var regexSetIdentity = new Regex(@"^SET\s+IDENTITY_INSERT\s+\[", options);
for (int i = 0; i < ddl.Count; i++)
{
ok = false;
Match match1 = regexCreateTable.Match(ddl[i]);
if (match1.Success)
{
treeDb.Nodes.Add(match1.Value, match1.Value, 0, 0).Checked = true;
schema = true;
ok = true;
}
Match match2 = regexInsert.Match(ddl[i]);
if (match2.Success)
{
if (!treeDb.Nodes.ContainsKey(match2.Value))
treeDb.Nodes.Add(match2.Value, match2.Value, 0, 0).Checked = true;
data = true;
ok = true;
}
if (!ok)
{
if (regexAlterTable.IsMatch(ddl[i]) | regexCreateIndex.IsMatch(ddl[i]) | regexSetIdentity.IsMatch(ddl[i]))
ok = true;
if (!ok)
{
cmdError = ddl[i].Length <= 500 ? ddl[i] : $"{ddl[i].Remove(500)}...";
break;
}
}
}
treeDb.EndUpdate();
treeDb.ExpandAll();
cbSchema.Enabled = cbSchema.Checked = schema;
cbData.Enabled = cbData.Checked = data;
if (!ok)
{
GlobalText.ShowError("ImportFormatError", cmdError);
abort = true;
}
}
private void RemoveTable(string tableName)
{
string pattern = $@"^CREATE\s+TABLE\s+\[{tableName}\]";
int pos = ddl.FindIndex(cmd => Regex.IsMatch(cmd, pattern, RegexOptions.Singleline));
if (pos >= 0)
ddl.RemoveAt(pos);
pattern = $@"^ALTER\s+TABLE\s+\[{tableName}\]";
while ((pos = ddl.FindIndex(cmd => Regex.IsMatch(cmd, pattern, RegexOptions.Singleline))) >= 0)
ddl.RemoveAt(pos);
pattern = $@"^CREATE.*\s+INDEX.*\s+ON\s+\[{tableName}\]";
while ((pos = ddl.FindIndex(cmd => Regex.IsMatch(cmd, pattern, RegexOptions.Singleline))) >= 0)
ddl.RemoveAt(pos);
pattern = $@"^ALTER\s+TABLE.*\s+ADD\s+CONSTRAINT.*\s+FOREIGN\s+KEY.*\s+REFERENCES\s+\[{tableName}\]";
while ((pos = ddl.FindIndex(cmd => Regex.IsMatch(cmd, pattern, RegexOptions.Singleline))) >= 0)
ddl.RemoveAt(pos);
pattern = $@"^INSERT\s+INTO\s+\[{tableName}\]";
while ((pos = ddl.FindIndex(cmd => Regex.IsMatch(cmd, pattern, RegexOptions.Singleline))) >= 0)
ddl.RemoveAt(pos);
pattern = $@"^SET\s+IDENTITY_INSERT\s+\[{tableName}\]";
while ((pos = ddl.FindIndex(cmd => Regex.IsMatch(cmd, pattern, RegexOptions.Singleline))) >= 0)
ddl.RemoveAt(pos);
}
private void FilterDdl()
{
foreach (TreeNode node in treeDb.Nodes)
if (!node.Checked)
RemoveTable(node.Text);
string patternInsert = @"^INSERT\s+INTO\s+\[.*\]";
string patternIdentity = @"^SET\s+IDENTITY_INSERT\s+\[.*\]";
for (int i = ddl.Count - 1; i >= 0; i--)
{
bool insert = Regex.IsMatch(ddl[i], patternInsert, RegexOptions.Singleline);
bool identity = Regex.IsMatch(ddl[i], patternIdentity, RegexOptions.Singleline);
if ((!cbSchema.Checked && !insert && !identity) || (!cbData.Checked && insert) || (!cbData.Checked && identity))
ddl.RemoveAt(i);
}
}
protected override void SetVisibleCore(bool value)
{
// Prevents the form is displayed if abort is true
base.SetVisibleCore(abort ? false : value);
if (abort)
DialogResult = DialogResult.Abort;
}
private void treeDb_BeforeSelect(object sender, TreeViewCancelEventArgs e)
{
e.Cancel = true; // Disable select to allow hide selection
}
private void treeDb_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
{
if (treeDb.HitTest(e.Location).Location == TreeViewHitTestLocations.Label)
e.Node.Checked = !e.Node.Checked;
}
private void btnImport_Click(object sender, EventArgs e)
{
bool anyTableExists = false;
bool allTablesExists = true;
foreach (TreeNode node in treeDb.Nodes)
if (node.Checked)
{
bool exists = db.TableNames.Contains(node.Text, StringComparer.InvariantCultureIgnoreCase);
if (exists)
anyTableExists = true;
else
allTablesExists = false;
}
if (cbSchema.Checked && anyTableExists)
{
GlobalText.ShowError("ErrorImportingTablesSchema");
DialogResult = DialogResult.Abort;
return;
}
if (cbData.Checked && !cbSchema.Checked && !allTablesExists)
{
GlobalText.ShowError("ErrorImportingTablesData");
DialogResult = DialogResult.Abort;
return;
}
FilterDdl();
toolStripProgressBar1.Value = 0;
toolStripProgressBar1.Maximum = ddl.Count;
DbCommand cmd = db.Connection.CreateCommand();
cmd.CommandType = CommandType.Text;
try
{
foreach (string sql in ddl)
{
toolStripProgressBar1.Increment(1);
cmd.CommandText = sql;
cmd.ExecuteNonQuery();
}
GlobalText.ShowInfo("ImportOk");
DialogResult = DialogResult.OK;
}
catch (Exception ex)
{
string sql = cmd.CommandText.Length <= 500 ? cmd.CommandText : $"{cmd.CommandText.Remove(500)}...";
GlobalText.ShowError("ImportError", ex.Message + Environment.NewLine + Environment.NewLine + sql);
DialogResult = DialogResult.Abort;
}
}
private void statusStrip1_SizeChanged(object sender, EventArgs e)
{
toolStripProgressBar1.Width = statusStrip1.Width - 20;
}
}
}