internal void BuildDryadLinqAssembly(HpcLinqQueryGen queryGen)
{
lock (s_codeGenLock)
{
// this method only gets called from HpcLinqQueryGen.GenerateDryadProgram() before job submission.
// Since we don't load the generated vertex DLL after that, the check for
// "should re-gen?" below is based on m_generatedVertexDllPath being set
if (this.m_generatedVertexDllPath== null)
{
queryGen.CodeGenVisit();
this.BuildAssembly(false);
}
}
}
/// <summary>
/// Explain a query plan in terms of elementary operations.
/// </summary>
/// <param name="gen">Query generator.</param>
/// <returns>A string explaining the plan.</returns>
internal string Explain(HpcLinqQueryGen gen)
{
StringBuilder plan = new StringBuilder();
gen.CodeGenVisit();
this.CodeShowVisit(plan, gen.QueryPlan());
return plan.ToString();
}
internal DryadInputNode(HpcLinqQueryGen queryGen, ConstantExpression queryExpr)
: base(QueryNodeType.InputTable, queryGen, queryExpr)
{
this.m_table = queryExpr.Value as DryadLinqQuery;
if (this.m_table == null)
{
throw DryadLinqException.Create(HpcLinqErrorCode.UnknownError, SR.InputMustBeHpcLinqSource, queryExpr);
}
if (TypeSystem.IsTypeOrAnyGenericParamsAnonymous(queryExpr.Type.GetGenericArguments()[0]))
{
throw DryadLinqException.Create(HpcLinqErrorCode.InputTypeCannotBeAnonymous,
SR.InputTypeCannotBeAnonymous,
queryExpr);
}
this.m_outputDataSetInfo = ((DryadLinqQuery)this.m_table).DataSetInfo;
this.m_partitionCount = this.m_outputDataSetInfo.partitionInfo.Count;
this.m_dynamicManager = DynamicManager.None;
}
internal DryadQueryNode(QueryNodeType nodeType,
HpcLinqQueryGen queryGen,
Expression queryExpr,
params DryadQueryNode[] children)
{
this.m_nodeType = nodeType;
this.m_queryGen = queryGen;
this.m_queryExpression = queryExpr;
this.m_parents = new List<DryadQueryNode>(1);
this.m_children = children;
foreach (DryadQueryNode child in children)
{
child.Parents.Add(this);
}
this.m_superNode = null;
this.m_isForked = false;
this.m_uniqueId = HpcLinqQueryGen.StartPhaseId;
this.m_channelType = ChannelType.DiskFile;
this.m_conOpType = ConnectionOpType.Pointwise;
this.m_opName = null;
this.m_vertexEntryMethod = null;
this.m_outputDataSetInfo = null;
this.m_partitionCount = -1;
this.m_dynamicManager = null;
}
private Type m_outputType; // type of output channel
#endregion Fields
#region Constructors
/// <summary>
/// Create a dummy node with a specific code generator.
/// </summary>
/// <param name="queryGen">Query generator to instantiate.</param>
/// <param name="outputType">Type of the single output.</param>
/// <param name="children">The upstream nodes</param>
internal DryadDummyNode(HpcLinqQueryGen queryGen,
Type outputType,
params DryadQueryNode[] children)
: base(QueryNodeType.Dummy, queryGen, null, children)
{
this.m_outputDataSetInfo = new DataSetInfo();
this.DynamicManager = DynamicManager.None;
this.m_outputType = outputType;
}
