private static void _SaveRouteAttributes(XmlWriter writer, Route route, IVrpSolver solver)
{
bool attributesContainsParams = false;
Debug.Assert(solver.NetworkDescription != null);
foreach (NetworkAttribute attribute in solver.NetworkDescription.NetworkAttributes)
{
foreach (NetworkAttributeParameter parameter in attribute.Parameters)
{
attributesContainsParams = true;
break;
}
if (attributesContainsParams)
{
break;
}
}
if (attributesContainsParams)
{
SolverSettings solverSettings = solver.SolverSettings;
writer.WriteStartElement(ATTRIBUTE_PARAMS_NODE_NAME);
foreach (NetworkAttribute attribute in solver.NetworkDescription.NetworkAttributes)
{
bool containsParams = false;
foreach (NetworkAttributeParameter parameter in attribute.Parameters)
{
containsParams = true;
break;
}
if (containsParams)
{
writer.WriteStartElement(ATTRIBUTE_NODE_NAME);
writer.WriteAttributeString(NAME_ATTR_NAME, attribute.Name);
foreach (NetworkAttributeParameter parameter in attribute.Parameters)
{
writer.WriteStartElement(PARAM_NODE_NAME);
writer.WriteAttributeString(NAME_ATTR_NAME, parameter.Name);
object valueObj = null;
if (!solverSettings.GetNetworkAttributeParameterValue(attribute.Name,
parameter.Name,
out valueObj))
{
valueObj = null;
}
string value = _ConvertValue2String(valueObj);
writer.WriteAttributeString(VALUE_ATTR_NAME, value);
writer.WriteEndElement();
}
writer.WriteEndElement();
}
}
writer.WriteEndElement();
}
}
/// <summary>
/// Get value for parameter.
/// </summary>
/// <param name="attributeName">Attribute name.</param>
/// <param name="parameterName">Parameter name.</param>
/// <param name="solverSettings">Solver settings from which
/// parameter value will be taken.</param>
/// <returns>Parameter value or empty string if no such parameter.</returns>
private string _GetParameterValue(string attributeName, string parameterName,
SolverSettings solverSettings)
{
object valueObj = null;
if (!solverSettings.GetNetworkAttributeParameterValue(attributeName,
parameterName, out valueObj))
{
valueObj = null;
}
return(_ConvertValue2String(valueObj));
}
/// <summary>
/// Update parameter if it has been changed.
/// </summary>
/// <param name="solverSettings">Solver settings in which
/// parameter value will be updated.</param>
/// <param name="attribute">Network attribute, which parameter must be updated.</param>
/// <param name="parameterName">Name of the parameter which must be updated.</param>
/// <param name="parameterValue">Value, which must be set in parameter.</param>
/// <exception cref="System.ArgumentException">Is thrown when there is no
/// attribute with such parameter name in solver settings.</exception>
private void _UpdateParameterIfNeeded(SolverSettings solverSettings,
NetworkAttribute attribute, string parameterName, string parameterValue)
{
Debug.Assert(solverSettings != null);
Debug.Assert(attribute != null);
Debug.Assert(parameterName != null);
// Get parameter.
var parameter = attribute.Parameters.First(par => par.Name == parameterName);
// Get current parameter value.
object valueObj = null;
if (!solverSettings.GetNetworkAttributeParameterValue(attribute.Name, parameterName, out valueObj))
{
throw new ArgumentException("parameterName");
}
string value = _ConvertValue2String(valueObj);
// If value has changed - set new value.
if (!value.Equals(parameterValue, StringComparison.OrdinalIgnoreCase))
{
if (parameterValue != null)
{
try
{
solverSettings.SetNetworkAttributeParameterValue(attribute.Name,
parameter.Name, parameterValue);
}
// Inputed value is in wrong format - do not change solver settings.
catch
{
}
}
}
}