///<summary>
///When overridden in a derived class, executes the task.
///</summary>
///
///<returns>
///true if the task successfully executed; otherwise, false.
///</returns>
public override bool Execute()
{
modifiedFile = GetEffectivePathToTnsNamesFile();
if (String.IsNullOrEmpty(ModifiedFile))
{
Log.LogError(Properties.Resources.TnsNamesFileNotFound);
return(false);
}
originalFileText = fileSystem.ReadTextFromFile(modifiedFile);
TnsParser parser = new TnsParser(originalFileText);
TnsEntry targetEntry = parser.FindEntry(entryName);
if (targetEntry == null)
{
// append entry definition to the beginning of the file
modifiedFileText = String.Format("{0} = {1}{2}{3}", entryName, entryText, Environment.NewLine, originalFileText);
Log.LogMessage(Properties.Resources.TnsnameAdded, entryName, modifiedFile);
}
else
{
if (!allowUpdates)
{
Log.LogError(Properties.Resources.TnsnameUpdateAborted, entryName, modifiedFile);
return(false);
}
// replace the entry definition within the file
string beforeEntry = originalFileText.Substring(0, targetEntry.StartPosition);
string afterEntry = originalFileText.Substring(targetEntry.StartPosition + targetEntry.Length);
modifiedFileText = String.Format("{0}{1} = {2}{3}", beforeEntry, entryName, entryText, afterEntry);
Log.LogMessage(Properties.Resources.TnsnameUpdated, entryName, modifiedFile);
}
fileSystem.WriteTextToFile(modifiedFile, modifiedFileText);
return(true);
}
///<summary>
///When overridden in a derived class, executes the task.
///</summary>
///
///<returns>
///true if the task successfully executed; otherwise, false.
///</returns>
public override bool Execute()
{
modifiedFile = GetEffectivePathToTnsNamesFile();
if (String.IsNullOrEmpty(ModifiedFile))
{
Log.LogError(Properties.Resources.TnsNamesFileNotFound);
return false;
}
originalFileText = fileSystem.ReadTextFromFile(modifiedFile);
TnsParser parser = new TnsParser(originalFileText);
TnsEntry targetEntry = parser.FindEntry(entryName);
if (targetEntry == null)
{
// append entry definition to the beginning of the file
modifiedFileText = String.Format("{0} = {1}{2}{3}", entryName, entryText, Environment.NewLine, originalFileText);
Log.LogMessage(Properties.Resources.TnsnameAdded, entryName, modifiedFile);
}
else
{
if (!allowUpdates)
{
Log.LogError(Properties.Resources.TnsnameUpdateAborted, entryName, modifiedFile);
return false;
}
// replace the entry definition within the file
string beforeEntry = originalFileText.Substring(0, targetEntry.StartPosition);
string afterEntry = originalFileText.Substring(targetEntry.StartPosition + targetEntry.Length);
modifiedFileText = String.Format("{0}{1} = {2}{3}", beforeEntry, entryName, entryText, afterEntry);
Log.LogMessage(Properties.Resources.TnsnameUpdated, entryName, modifiedFile);
}
fileSystem.WriteTextToFile(modifiedFile, modifiedFileText);
return true;
}
public void FindEntry_should_only_ecognize_entry_names_that_start_in_the_first_column_of_a_new_line()
{
string textThatIsInTheFileButNotAnEntryName = "CONNECT_DATA";
StringAssert.Contains(textThatIsInTheFileButNotAnEntryName, AddTnsNameTest.SAMPLE_FILE);
TnsParser parser = new TnsParser(AddTnsNameTest.SAMPLE_FILE);
TnsEntry foundEntry = parser.FindEntry(textThatIsInTheFileButNotAnEntryName);
Assert.IsNull(foundEntry);
}
public void FindEntry_should_return_position_of_the_requested_entry_when_it_does_exist()
{
string entryName = "SOUTHWIND.WORLD";
int startPosition = AddTnsNameTest.SAMPLE_FILE.IndexOf(entryName);
Assert.IsTrue(startPosition >=0, "Entry should exist in sample file.");
TnsParser parser = new TnsParser(AddTnsNameTest.SAMPLE_FILE);
TnsEntry foundEntry = parser.FindEntry(entryName);
Assert.AreEqual(startPosition, foundEntry.StartPosition);
}
public void FindEntry_should_return_length_of_the_found_entry_definition()
{
string entryName = "SOUTHWIND.WORLD";
const int LENGTH_OF_SOUTHWIND_DEFINITION = 189; // this corresponds to the text of SAMPLE_FILE
int startPosition = AddTnsNameTest.SAMPLE_FILE.IndexOf(entryName);
Assert.IsTrue(startPosition >= 0, "Entry should exist in sample file.");
TnsParser parser = new TnsParser(AddTnsNameTest.SAMPLE_FILE);
TnsEntry foundEntry = parser.FindEntry(entryName);
Assert.AreEqual(LENGTH_OF_SOUTHWIND_DEFINITION, foundEntry.Length);
}
public void FindEntry_should_return_null_when_the_requested_entry_does_not_exist()
{
TnsParser parser = new TnsParser(AddTnsNameTest.SAMPLE_FILE);
TnsEntry foundEntry = parser.FindEntry("eastwind.world");
Assert.IsNull(foundEntry);
}
