// Module defining this command
// Optional custom code for this activity
/// <summary>
/// Returns a configured instance of System.Management.Automation.PowerShell, pre-populated with the command to run.
/// </summary>
/// <param name="context">The NativeActivityContext for the currently running activity.</param>
/// <returns>A populated instance of System.Management.Automation.PowerShell</returns>
/// <remarks>The infrastructure takes responsibility for closing and disposing the PowerShell instance returned.</remarks>
protected override ActivityImplementationContext GetPowerShell(NativeActivityContext context)
{
System.Management.Automation.PowerShell invoker = global::System.Management.Automation.PowerShell.Create();
System.Management.Automation.PowerShell targetCommand = invoker.AddCommand(PSCommandName);
// Initialize the arguments
if (Name.Expression != null)
{
targetCommand.AddParameter("Name", Name.Get(context));
}
if (LiteralName.Expression != null)
{
targetCommand.AddParameter("LiteralName", LiteralName.Get(context));
}
if (Scope.Expression != null)
{
targetCommand.AddParameter("Scope", Scope.Get(context));
}
if (PSProvider.Expression != null)
{
targetCommand.AddParameter("PSProvider", PSProvider.Get(context));
}
return(new ActivityImplementationContext()
{
PowerShellInstance = invoker
});
}
private Object ParseNextToken(PushbackStream pis)
{
Object retval = null;
int nextByte = pis.ReadByte();
//skip whitespace
while (nextByte == 0x09 || nextByte == 0x20 || nextByte == 0x0D || nextByte == 0x0A)
{
nextByte = pis.ReadByte();
}
switch (nextByte)
{
case '%':
{
//header operations, for now return the entire line
//may need to smarter in the future
StringBuilder buffer = new StringBuilder();
buffer.Append((char)nextByte);
ReadUntilEndOfLine(pis, buffer);
retval = buffer.ToString();
break;
}
case '(':
{
StringBuilder buffer = new StringBuilder();
int stringByte = pis.ReadByte();
while (stringByte != -1 && stringByte != ')')
{
buffer.Append((char)stringByte);
stringByte = pis.ReadByte();
}
retval = buffer.ToString();
break;
}
case '>':
{
int secondCloseBrace = pis.ReadByte();
if (secondCloseBrace == '>')
{
retval = MARK_END_OF_DICTIONARY;
}
else
{
throw new IOException(MessageLocalization.GetComposedMessage("error.expected.the.end.of.a.dictionary"));
}
break;
}
case ']':
{
retval = MARK_END_OF_ARRAY;
break;
}
case '[':
{
IList <byte[]> list = new List <byte[]>();
Object nextToken = ParseNextToken(pis);
while (!MARK_END_OF_ARRAY.Equals(nextToken))
{
list.Add((byte[])nextToken);
nextToken = ParseNextToken(pis);
}
retval = list;
break;
}
case '<':
{
int theNextByte = pis.ReadByte();
if (theNextByte == '<')
{
IDictionary <String, Object> result = new Dictionary <String, Object>();
//we are reading a dictionary
Object key = ParseNextToken(pis);
while (key is LiteralName && !MARK_END_OF_DICTIONARY.Equals(key))
{
Object value = ParseNextToken(pis);
result[((LiteralName)key).name] = value;
key = ParseNextToken(pis);
}
retval = result;
}
else
{
//won't read more than 512 bytes
int multiplyer = 16;
int bufferIndex = -1;
while (theNextByte != -1 && theNextByte != '>')
{
int intValue = 0;
if (theNextByte >= '0' && theNextByte <= '9')
{
intValue = theNextByte - '0';
}
else if (theNextByte >= 'A' && theNextByte <= 'F')
{
intValue = 10 + theNextByte - 'A';
}
else if (theNextByte >= 'a' && theNextByte <= 'f')
{
intValue = 10 + theNextByte - 'a';
}
else if (theNextByte == 0x20 || theNextByte == 0x09)
{
// skipping whitespaces - from pdf's generated by Mac osx
theNextByte = pis.ReadByte();
continue;
}
else
{
throw new IOException(MessageLocalization.GetComposedMessage("error.expected.hex.character.and.not.char.thenextbyte.1", theNextByte));
}
intValue *= multiplyer;
if (multiplyer == 16)
{
bufferIndex++;
tokenParserByteBuffer[bufferIndex] = 0;
multiplyer = 1;
}
else
{
multiplyer = 16;
}
tokenParserByteBuffer[bufferIndex] += (byte)intValue;
theNextByte = pis.ReadByte();
}
byte[] finalResult = new byte[bufferIndex + 1];
System.Array.Copy(tokenParserByteBuffer, 0, finalResult, 0, bufferIndex + 1);
retval = finalResult;
}
break;
}
case '/':
{
StringBuilder buffer = new StringBuilder();
int stringByte = pis.ReadByte();
while (!IsWhitespaceOrEOF(stringByte))
{
buffer.Append((char)stringByte);
stringByte = pis.ReadByte();
}
retval = new LiteralName(buffer.ToString());
break;
}
case -1:
{
//EOF return null;
break;
}
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
{
StringBuilder buffer = new StringBuilder();
buffer.Append((char)nextByte);
nextByte = pis.ReadByte();
while (!IsWhitespaceOrEOF(nextByte) &&
(Char.IsDigit((char)nextByte) ||
nextByte == '.'))
{
buffer.Append((char)nextByte);
nextByte = pis.ReadByte();
}
pis.Unread(nextByte);
String value = buffer.ToString();
if (value.IndexOf('.') >= 0)
{
retval = double.Parse(value, CultureInfo.InvariantCulture);
}
else
{
retval = int.Parse(value, CultureInfo.InvariantCulture);
}
break;
}
default:
{
StringBuilder buffer = new StringBuilder();
buffer.Append((char)nextByte);
nextByte = pis.ReadByte();
while (!IsWhitespaceOrEOF(nextByte))
{
buffer.Append((char)nextByte);
nextByte = pis.ReadByte();
}
retval = new Operator(buffer.ToString());
break;
}
}
return(retval);
}
private Object ParseNextToken( PushbackStream pis )
{
Object retval = null;
int nextByte = pis.ReadByte();
//skip whitespace
while ( nextByte == 0x09 || nextByte == 0x20 || nextByte == 0x0D || nextByte == 0x0A )
{
nextByte = pis.ReadByte();
}
switch ( nextByte )
{
case '%':
{
//header operations, for now return the entire line
//may need to smarter in the future
StringBuilder buffer = new StringBuilder();
buffer.Append( (char)nextByte );
ReadUntilEndOfLine( pis, buffer );
retval = buffer.ToString();
break;
}
case '(':
{
StringBuilder buffer = new StringBuilder();
int stringByte = pis.ReadByte();
while ( stringByte != -1 && stringByte != ')' )
{
buffer.Append( (char)stringByte );
stringByte = pis.ReadByte();
}
retval = buffer.ToString();
break;
}
case '>':
{
int secondCloseBrace = pis.ReadByte();
if ( secondCloseBrace == '>' )
{
retval = MARK_END_OF_DICTIONARY;
}
else
{
throw new IOException(MessageLocalization.GetComposedMessage("error.expected.the.end.of.a.dictionary"));
}
break;
}
case ']':
{
retval = MARK_END_OF_ARRAY;
break;
}
case '[':
{
IList<Object> list = new List<Object>();
Object nextToken = ParseNextToken( pis );
while (!MARK_END_OF_ARRAY.Equals(nextToken) )
{
list.Add( nextToken );
nextToken = ParseNextToken( pis );
}
retval = list;
break;
}
case '<':
{
int theNextByte = pis.ReadByte();
if ( theNextByte == '<' )
{
IDictionary<String, Object> result = new Dictionary<String, Object>();
//we are reading a dictionary
Object key = ParseNextToken( pis );
while ( key is LiteralName && !MARK_END_OF_DICTIONARY.Equals(key) )
{
Object value = ParseNextToken( pis );
result[((LiteralName)key).name] = value;
key = ParseNextToken( pis );
}
retval = result;
}
else
{
//won't read more than 512 bytes
int multiplyer = 16;
int bufferIndex = -1;
while ( theNextByte != -1 && theNextByte != '>' )
{
int intValue = 0;
if ( theNextByte >= '0' && theNextByte <= '9' )
{
intValue = theNextByte - '0';
}
else if ( theNextByte >= 'A' && theNextByte <= 'F' )
{
intValue = 10 + theNextByte - 'A';
}
else if ( theNextByte >= 'a' && theNextByte <= 'f' )
{
intValue = 10 + theNextByte - 'a';
}
else
{
throw new IOException(MessageLocalization.GetComposedMessage("error.expected.hex.character.and.not.char.thenextbyte.1", theNextByte));
}
intValue *= multiplyer;
if ( multiplyer == 16 )
{
bufferIndex++;
tokenParserByteBuffer[bufferIndex] = 0;
multiplyer = 1;
}
else
{
multiplyer = 16;
}
tokenParserByteBuffer[bufferIndex]+= (byte)intValue;
theNextByte = pis.ReadByte();
}
byte[] finalResult = new byte[bufferIndex+1];
System.Array.Copy(tokenParserByteBuffer,0,finalResult, 0, bufferIndex+1);
retval = finalResult;
}
break;
}
case '/':
{
StringBuilder buffer = new StringBuilder();
int stringByte = pis.ReadByte();
while ( !IsWhitespaceOrEOF( stringByte ) )
{
buffer.Append( (char)stringByte );
stringByte = pis.ReadByte();
}
retval = new LiteralName( buffer.ToString() );
break;
}
case -1:
{
//EOF return null;
break;
}
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
{
StringBuilder buffer = new StringBuilder();
buffer.Append( (char)nextByte );
nextByte = pis.ReadByte();
while ( !IsWhitespaceOrEOF( nextByte ) &&
(Char.IsDigit( (char)nextByte )||
nextByte == '.' ) )
{
buffer.Append( (char)nextByte );
nextByte = pis.ReadByte();
}
pis.Unread( nextByte );
String value = buffer.ToString();
if ( value.IndexOf( '.' ) >=0 )
{
retval = double.Parse(value, CultureInfo.InvariantCulture);
}
else
{
retval = int.Parse(value, CultureInfo.InvariantCulture);
}
break;
}
default:
{
StringBuilder buffer = new StringBuilder();
buffer.Append( (char)nextByte );
nextByte = pis.ReadByte();
while ( !IsWhitespaceOrEOF( nextByte ) )
{
buffer.Append( (char)nextByte );
nextByte = pis.ReadByte();
}
retval = new Operator( buffer.ToString() );
break;
}
}
return retval;
}
