/// <summary>
/// Processes all configurations in the provided configuration collection
/// </summary>
/// <param name="configuration">the current configuration collection</param>
/// <param name="data">the data that came out of the last query</param>
private void ProcessConfig(QueryConfigurationCollection configuration, DynamicResult[] data = null)
{
QueryConfigurationCollection tmp = currentConfiguration.Value;
DynamicResult currentTmpItem = currentItem.Value;
try
{
if (currentTmpItem != null)
{
Parents.Insert(0, currentTmpItem);
}
currentConfiguration.Value = configuration;
if (data != null)
{
foreach (DynamicResult result in data)
{
currentItem.Value = result;
ProcessQueries(configuration);
}
}
else
{
ProcessQueries(configuration);
}
}
finally
{
currentConfiguration.Value = tmp;
currentItem.Value = currentTmpItem;
if (currentTmpItem != null)
{
Parents.RemoveAt(0);
}
}
}
/// <summary>
/// Runs all configured queries in the sequence they were registered in the configuration
/// </summary>
/// <param name="queries">the queries to run on the target</param>
private void ProcessQueries(QueryConfigurationCollection queries)
{
Dictionary <string, object> variables = new Dictionary <string, object> {
{ "current", currentItem.Value }, { "parents", Parents.ToArray() }
};
QueryDefinition callConfig = new QueryDefinition();
foreach (QueryConfiguration config in queries)
{
callConfig.Query = config.Query;
callConfig.Source = config.Source;
callConfig.Targets =
(from t in config.Targets
select new TargetDefinition {
TargetName = t.TargetName, RegisterAs = t.RegisterName
}).ToArray();
callConfig.Parameters = (from t in config.Parameters
select
new ParameterDefinition
{
ParameterName = t.ParameterName,
ParameterValue =
ExpressionParser.Parse(t.ParameterExpression,
variables, a => { DefaultCallbacks.PrepareDefaultCallbacks(a.Scope, a.ReplSession); })
}).ToArray();
currentCallback.Value(callConfig);
}
}
/// <summary>
/// Builds a structure and uses the specified query-callback
/// </summary>
/// <param name="queryCallback">the query-callback that is used to the get structure-queries</param>
/// <param name="configuration">the Configuration that must be used for this structurebuild-run</param>
public void BuildStructure(ExecuteQuery queryCallback, QueryConfigurationCollection configuration)
{
currentCallback.Value = queryCallback;
try
{
ProcessConfig(configuration);
}
finally
{
currentCallback.Value = null;
}
}
/// <summary>
/// Collects data for a specific configuration name
/// </summary>
/// <param name="builderName">the name of the structure-Builder that is associated with this collector-job</param>
/// <param name="configuration">the query configurations that must be used for collecting data</param>
/// <param name="parameterCallback">A Callback that can be used to request values of parameters in queries</param>
/// <returns>a structured DynamicResult-Array</returns>
public DynamicResult[] CollectData(string builderName, QueryConfigurationCollection configuration, Func <string, object> parameterCallback)
{
IStructureBuilder builder = builders[builderName];
variableCallback.Value = parameterCallback;
try
{
builder.BuildStructure(RunQuery, configuration);
return(builder.RootCollection);
}
finally
{
variableCallback.Value = null;
builder.Clear();
}
}
