/***************************************************************************
* Copyright (C) 2011 by Karoly Szanto *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Library General Public License as *
* published by the Free Software Foundation; either version 2 of the *
* License, or (at your option) any later version. *
* *
* This program 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 Library General Public *
* License along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
* For details about the authors of this software, see the AUTHORS file. *
***************************************************************************/
package jolie.process;
import jolie.ExecutionThread;
import jolie.runtime.expression.Expression;
import jolie.runtime.Value;
import jolie.runtime.VariablePath;
/**
* Divide a VariablePath's value with an expression value, assigning the resulting
* value to the VariablePath.
* @see Expression
* @see VariablePath
* @author Karoly Szanto
*/
public class DivideAssignmentProcess implements Process, Expression
{
final private VariablePath varPath;
final private Expression expression;
/** Constructor.
*
* @param varPath the variable which will receive the value
* @param expression the expression to be evaluated and used to divide the variable's value
* @throws InvalidIdException if varId does not identify a variable
*/
public DivideAssignmentProcess( VariablePath varPath, Expression expression )
{
this.varPath = varPath;
this.expression = expression;
}
public Process clone( TransformationReason reason )
{
return new DivideAssignmentProcess(
(VariablePath) varPath.cloneExpression( reason ),
expression.cloneExpression( reason ) );
}
public Expression cloneExpression( TransformationReason reason )
{
return new DivideAssignmentProcess(
(VariablePath) varPath.cloneExpression( reason ),
expression.cloneExpression( reason ) );
}
/** Evaluates the expression and adds its value to the variable's value. */
public void run()
{
if ( ExecutionThread.currentThread().isKilled() ) {
return;
}
varPath.getValue().divide( expression.evaluate() );
}
public Value evaluate()
{
Value val = varPath.getValue();
val.divide( expression.evaluate() );
return val;
}
public boolean isKillable()
{
return true;
}
}