/// <summary>
/// Emits the node/edge/internal class object attribute initialization code in graph exporting
/// for an attribute of internal class object type with the given value into the stream writer.
/// </summary>
private static void EmitAttributeInitialization(MainGraphExportContext mainGraphContext, IAttributeBearer owner,
AttributeType attrType, object value, INamedGraph graph, StreamWriter sw)
{
if (owner is IGraphElement)
{
String persistentName = graph.GetElementName((IGraphElement)owner);
sw.Write("@(\"{0}\").{1} = ", persistentName, attrType.Name);
}
else
{
String persistentName = mainGraphContext.GetOrAssignPersistentName((IObject)owner);
sw.Write("@@(\"{0}\").{1} = ", persistentName, attrType.Name);
}
StringBuilder deferredInits = new StringBuilder();
if (value == null)
{
sw.Write("null");
}
else if (value is IObject)
{
IObject obj = (IObject)value;
EmitObjectFetchingOrCreation(mainGraphContext, obj.Type, obj, graph, sw, deferredInits);
}
else // container
{
EmitAttribute(mainGraphContext, attrType, value, graph, sw, deferredInits);
}
sw.WriteLine();
sw.Write(deferredInits);
}
private static void AddGraphAttributes(MainGraphExportContext mainExportContext, StreamWriter writer)
{
foreach (KeyValuePair <string, GraphExportContext> kvp in mainExportContext.nameToContext)
{
GraphExportContext context = kvp.Value;
GRSExport.EmitSubgraphAttributes(mainExportContext, context, writer);
}
}
/// <summary>
/// Exports the given graph to the file given by the stream writer in grs format.
/// Any errors will be reported by exception.
/// Returns the graph export context of the main graph.
/// </summary>
/// <param name="graph">The graph to export. Must be a named graph.</param>
/// <param name="sw">The stream writer of the file to export into. The stream writer is not closed automatically.</param>
/// <param name="modelPathPrefix">Path to the model.</param>
/// <param name="nonewgraph">If true, the new graph command is not emitted.</param>
/// <param name="typesToAttributesToSkip">Gives a dictionary with type names containing a dictionary with attribute names that are not to be emitted</param>
public static MainGraphExportContext ExportYouMustCloseStreamWriter(INamedGraph graph, StreamWriter sw, string modelPathPrefix, bool noNewGraph, Dictionary <String, Dictionary <String, String> > typesToAttributesToSkip)
{
MainGraphExportContext mainGraphContext = new MainGraphExportContext(graph);
mainGraphContext.graphToContext[mainGraphContext.graph] = mainGraphContext;
mainGraphContext.nameToContext[mainGraphContext.name] = mainGraphContext;
mainGraphContext.modelPathPrefix = modelPathPrefix;
mainGraphContext.noNewGraph = noNewGraph;
if (typesToAttributesToSkip != null)
{
mainGraphContext.typesToAttributesToSkip = new Dictionary <string, Dictionary <string, string> >();
foreach (KeyValuePair <String, Dictionary <String, String> > typeContainingAttributeToSkip in typesToAttributesToSkip)
{
mainGraphContext.typesToAttributesToSkip.Add(typeContainingAttributeToSkip.Key, new Dictionary <string, string>());
foreach (KeyValuePair <String, String> attributeToSkip in typeContainingAttributeToSkip.Value)
{
mainGraphContext.typesToAttributesToSkip[typeContainingAttributeToSkip.Key].Add(attributeToSkip.Key, null);
}
}
}
sw.WriteLine("# begin of graph \"{0}\" saved by GrsExport", mainGraphContext.name);
sw.WriteLine();
bool subgraphAdded = ExportSingleGraph(mainGraphContext, mainGraphContext, sw);
if (subgraphAdded)
{
restart:
foreach (KeyValuePair <string, GraphExportContext> kvp in mainGraphContext.nameToContext)
{
GraphExportContext context = kvp.Value;
if (!context.isExported)
{
subgraphAdded = ExportSingleGraph(mainGraphContext, context, sw);
if (subgraphAdded)
{
goto restart;
}
}
}
foreach (KeyValuePair <string, GraphExportContext> kvp in mainGraphContext.nameToContext)
{
GraphExportContext context = kvp.Value;
EmitSubgraphAttributes(mainGraphContext, context, sw);
}
sw.WriteLine("in \"" + mainGraphContext.name + "\""); // after import in main graph
}
sw.WriteLine("# end of graph \"{0}\" saved by GrsExport", mainGraphContext.name);
sw.WriteLine();
return(mainGraphContext);
}
private static bool IsAttributeToBeSkipped(MainGraphExportContext mainGraphContext, AttributeType attrType)
{
if (mainGraphContext.typesToAttributesToSkip != null &&
mainGraphContext.typesToAttributesToSkip.ContainsKey(attrType.OwnerType.PackagePrefixedName) &&
mainGraphContext.typesToAttributesToSkip[attrType.OwnerType.PackagePrefixedName].ContainsKey(attrType.Name))
{
return(true);
}
return(false);
}
private static void EmitObjectFetchingOrCreation(MainGraphExportContext mainGraphContext,
ObjectType objType, IObject obj, INamedGraph graph, StreamWriter sw, StringBuilder deferredInits)
{
if (mainGraphContext.HasPersistentName(obj))
{
sw.Write("@@(\"{0}\")", mainGraphContext.GetOrAssignPersistentName(obj));
}
else
{
EmitObjectCreation(mainGraphContext, objType, obj, graph, sw, deferredInits);
}
}
void EmitObjectAttributeAssignmentCreatingAsNeeded(IObject owner, AttributeType attrType,
MainGraphExportContext mainExportContext, RecordingState recordingState)
{
if (!mainExportContext.HasPersistentName(owner))
{
StringBuilder deferredInits = new StringBuilder();
GRSExport.EmitObjectCreation(mainExportContext, owner.Type, owner, graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine();
recordingState.writer.Write(deferredInits.ToString());
}
recordingState.writer.Write("@@(\"" + mainExportContext.GetOrAssignPersistentName((IObject)owner) + "\")." + attrType.Name + " = ");
}
public static void EmitSubgraphAttributes(MainGraphExportContext mainGraphContext,
GraphExportContext context, StreamWriter sw)
{
if (context.areGraphAttributesExported)
{
return;
}
sw.WriteLine("in \"" + context.name + "\"");
foreach (INode node in context.graph.Nodes)
{
foreach (AttributeType attrType in node.Type.AttributeTypes)
{
if (IsAttributeToBeSkipped(mainGraphContext, attrType))
{
continue;
}
if (!IsGraphUsedInAttribute(attrType))
{
continue;
}
object value = node.GetAttribute(attrType.Name);
sw.Write("@(\"{0}\").{1} = ", context.graph.GetElementName(node), attrType.Name);
EmitAttribute(mainGraphContext, attrType, value, context.graph, sw);
sw.Write("\n");
}
foreach (IEdge edge in node.Outgoing)
{
foreach (AttributeType attrType in edge.Type.AttributeTypes)
{
if (IsAttributeToBeSkipped(mainGraphContext, attrType))
{
continue;
}
if (!IsGraphUsedInAttribute(attrType))
{
continue;
}
object value = edge.GetAttribute(attrType.Name);
sw.Write("@(\"{0}\").{1} = ", context.graph.GetElementName(edge), attrType.Name);
EmitAttribute(mainGraphContext, attrType, value, context.graph, sw);
sw.Write("\n");
}
}
}
context.areGraphAttributesExported = true;
}
public static bool AddSubgraphAsNeeded(MainGraphExportContext mainGraphContext,
INamedGraph graph)
{
if (graph != null && !mainGraphContext.graphToContext.ContainsKey(graph))
{
GraphExportContext subgraphContext = new GraphExportContext(mainGraphContext, graph);
mainGraphContext.graphToContext[graph] = subgraphContext;
mainGraphContext.nameToContext[subgraphContext.name] = subgraphContext;
return(true);
}
else
{
return(false);
}
}
public GraphExportContext(MainGraphExportContext mainGraphContext, INamedGraph graph)
{
this.graph = graph;
this.mainGraphContext = mainGraphContext ?? (MainGraphExportContext)this;
if(this.mainGraphContext.nameToContext.ContainsKey(graph.Name))
{
int id = 0;
while(this.mainGraphContext.nameToContext.ContainsKey(graph.Name + "_" + id.ToString()))
{
++id;
}
this.name = graph.Name + "_" + id.ToString();
}
else
this.name = graph.Name;
}
public GraphExportContext(MainGraphExportContext mainGraphContext, INamedGraph graph)
{
this.graph = graph;
this.mainGraphContext = mainGraphContext ?? (MainGraphExportContext)this;
if (this.mainGraphContext.nameToContext.ContainsKey(graph.Name))
{
int id = 0;
while (this.mainGraphContext.nameToContext.ContainsKey(graph.Name + "_" + id.ToString()))
{
++id;
}
this.name = graph.Name + "_" + id.ToString();
}
else
{
this.name = graph.Name;
}
}
/// <summary>
/// Exports the given graph to the file given by the stream writer in grs format.
/// Any errors will be reported by exception.
/// Returns the graph export context of the main graph.
/// </summary>
/// <param name="graph">The graph to export. Must be a named graph.</param>
/// <param name="sw">The stream writer of the file to export into. The stream writer is not closed automatically.</param>
/// <param name="modelPathPrefix">Path to the model.</param>
public static MainGraphExportContext ExportYouMustCloseStreamWriter(INamedGraph graph, StreamWriter sw, string modelPathPrefix)
{
MainGraphExportContext mainGraphContext = new MainGraphExportContext(graph);
mainGraphContext.graphToContext[mainGraphContext.graph] = mainGraphContext;
mainGraphContext.nameToContext[mainGraphContext.name] = mainGraphContext;
mainGraphContext.modelPathPrefix = modelPathPrefix;
sw.WriteLine("# begin of graph \"{0}\" saved by GrsExport", mainGraphContext.name);
sw.WriteLine();
bool subgraphAdded = ExportSingleGraph(mainGraphContext, mainGraphContext, sw);
if (subgraphAdded)
{
restart:
foreach (KeyValuePair <string, GraphExportContext> kvp in mainGraphContext.nameToContext)
{
GraphExportContext context = kvp.Value;
if (!context.isExported)
{
subgraphAdded = ExportSingleGraph(mainGraphContext, context, sw);
if (subgraphAdded)
{
goto restart;
}
}
}
foreach (KeyValuePair <string, GraphExportContext> kvp in mainGraphContext.nameToContext)
{
GraphExportContext context = kvp.Value;
EmitSubgraphAttributes(mainGraphContext, context, sw);
}
sw.WriteLine("in \"" + mainGraphContext.name + "\""); // after import in main graph
}
sw.WriteLine("# end of graph \"{0}\" saved by GrsExport", mainGraphContext.name);
sw.WriteLine();
return(mainGraphContext);
}
private bool AddSubgraphsAsNeeded(MainGraphExportContext mainExportContext,
IGraphElement element, AttributeType attrType, Object value, StreamWriter writer)
{
if (!GRSExport.IsGraphUsedInAttribute(attrType))
{
return(false);
}
if (value == null)
{
return(false);
}
if (!(value is INamedGraph))
{
return(false);
}
bool wasAdded = GRSExport.AddSubgraphAsNeeded(mainExportContext, (INamedGraph)value);
if (wasAdded)
{
restart:
foreach (KeyValuePair <string, GraphExportContext> kvp in mainExportContext.nameToContext)
{
GraphExportContext context = kvp.Value;
if (!context.isExported)
{
wasAdded = GRSExport.ExportSingleGraph(mainExportContext, context, writer);
if (wasAdded)
{
goto restart;
}
}
}
AddGraphAttributes(mainExportContext, writer);
writer.WriteLine("in \"" + mainExportContext.graphToContext[graph].name + "\" # after emitting new subgraph for attribute");
return(true);
}
return(false);
}
public static void EmitObjectCreation(MainGraphExportContext mainGraphContext,
ObjectType objType, IObject obj, INamedGraph graph, StreamWriter sw, StringBuilder deferredInits)
{
sw.Write("new {0}@(% = \"{1}\"", objType.PackagePrefixedName, mainGraphContext.GetOrAssignPersistentName(obj));
foreach (AttributeType attrType in objType.AttributeTypes)
{
if (IsInternalClassObjectUsedInAttribute(attrType))
{
continue;
}
sw.Write(", {0} = ", attrType.Name);
EmitAttribute(mainGraphContext, attrType, obj.GetAttribute(attrType.Name), graph, sw, deferredInits);
}
sw.Write(")");
++mainGraphContext.numInternalClassObjects;
foreach (AttributeType attrType in objType.AttributeTypes)
{
if (!IsInternalClassObjectUsedInAttribute(attrType))
{
continue;
}
object value = obj.GetAttribute(attrType.Name);
MemoryStream memStream = new MemoryStream();
StreamWriter deferredSw = new StreamWriter(memStream);
EmitAttributeInitialization(mainGraphContext, obj, attrType, value, graph, deferredSw);
deferredSw.Flush();
memStream.Seek(0, SeekOrigin.Begin);
byte[] buffer = new byte[memStream.Length];
int read = memStream.Read(buffer, 0, (int)memStream.Length);
String deferred = System.Text.Encoding.UTF8.GetString(buffer);
deferredInits.Append(deferred);
}
}
public void StartRecording(string filename)
{
if (!recordings.ContainsKey(filename))
{
if (recordings.Count == 0)
{
SubscribeEvents();
}
StreamWriter writer = null;
if (filename.EndsWith(".gz", StringComparison.InvariantCultureIgnoreCase))
{
FileStream filewriter = new FileStream(filename, FileMode.OpenOrCreate, FileAccess.Write);
writer = new StreamWriter(new GZipStream(filewriter, CompressionMode.Compress));
}
else
{
writer = new StreamWriter(filename);
}
String pathPrefix = "";
if (filename.LastIndexOf("/") != -1 || filename.LastIndexOf("\\") != -1)
{
int lastIndex = filename.LastIndexOf("/");
if (lastIndex == -1)
{
lastIndex = filename.LastIndexOf("\\");
}
pathPrefix = filename.Substring(0, lastIndex + 1);
}
MainGraphExportContext mainGraphContext = GRSExport.ExportYouMustCloseStreamWriter(graph, writer, pathPrefix, false, null);
recordings.Add(new KeyValuePair <string, RecordingState>(filename,
new RecordingState(writer, mainGraphContext)));
}
}
/// <summary>
/// Type needed for enum, otherwise null ok.
/// Graph needed for node/edge, otherwise null ok.
/// Main graph context needed to get access to the graph -> env dictionary for subgraph.
/// </summary>
public static void EmitAttributeValue(MainGraphExportContext mainGraphContext,
object value, AttributeType type, INamedGraph graph, StreamWriter sw, StringBuilder deferredInits)
{
switch (type.Kind)
{
case AttributeKind.ByteAttr:
sw.Write(((sbyte)value).ToString() + "Y");
return;
case AttributeKind.ShortAttr:
sw.Write(((short)value).ToString() + "S");
return;
case AttributeKind.IntegerAttr:
sw.Write(((int)value).ToString());
return;
case AttributeKind.LongAttr:
sw.Write(((long)value).ToString() + "L");
return;
case AttributeKind.BooleanAttr:
sw.Write(((bool)value).ToString());
return;
case AttributeKind.StringAttr:
if (value == null)
{
sw.Write("\"\"");
}
else
{
sw.Write("\"" + ((string)value).Replace("\\", "\\\\").Replace("\"", "\\\"") + "\"");
}
return;
case AttributeKind.FloatAttr:
sw.Write(((float)value).ToString(System.Globalization.CultureInfo.InvariantCulture) + "f");
return;
case AttributeKind.DoubleAttr:
sw.Write(((double)value).ToString(System.Globalization.CultureInfo.InvariantCulture));
return;
case AttributeKind.ObjectAttr:
sw.Write(graph.Model.Serialize(value, type, graph));
return;
case AttributeKind.GraphAttr:
if (value != null && mainGraphContext != null && mainGraphContext.graphToContext != null)
{
sw.Write("\"" + mainGraphContext.graphToContext[(INamedGraph)value].name + "\"");
}
else
{
sw.Write("null");
}
return;
case AttributeKind.EnumAttr:
sw.Write(type.EnumType.PackagePrefixedName + "::" + type.EnumType[(int)value].Name);
return;
case AttributeKind.NodeAttr:
case AttributeKind.EdgeAttr:
if (value != null)
{
sw.Write("@(\"" + graph.GetElementName((IGraphElement)value) + "\")");
}
else
{
sw.Write("null");
}
return;
case AttributeKind.InternalClassObjectAttr:
if (value != null)
{
IObject obj = (IObject)value;
EmitObjectFetchingOrCreation(mainGraphContext, obj.Type, obj, graph, sw, deferredInits);
}
else
{
sw.Write("null");
}
return;
default:
throw new Exception("Unsupported attribute kind in export");
}
}
/// <summary>
/// Type needed for enum, otherwise null ok.
/// Graph needed for node/edge, otherwise null ok.
/// Main graph context needed to get access to the graph -> env dictionary for subgraph.
/// </summary>
public static String ToString(MainGraphExportContext mainGraphContext,
object value, AttributeType type, INamedGraph graph)
{
switch (type.Kind)
{
case AttributeKind.ByteAttr:
return(((sbyte)value).ToString() + "Y");
case AttributeKind.ShortAttr:
return(((short)value).ToString() + "S");
case AttributeKind.IntegerAttr:
return(((int)value).ToString());
case AttributeKind.LongAttr:
return(((long)value).ToString() + "L");
case AttributeKind.BooleanAttr:
return(((bool)value).ToString());
case AttributeKind.StringAttr:
if (value == null)
{
return("\"\"");
}
else
{
return("\"" + ((string)value).Replace("\\", "\\\\").Replace("\"", "\\\"") + "\"");
}
case AttributeKind.FloatAttr:
return(((float)value).ToString(System.Globalization.CultureInfo.InvariantCulture) + "f");
case AttributeKind.DoubleAttr:
return(((double)value).ToString(System.Globalization.CultureInfo.InvariantCulture));
case AttributeKind.ObjectAttr:
return(graph.Model.Serialize(value, type, graph));
case AttributeKind.GraphAttr:
if (value != null && mainGraphContext != null && mainGraphContext.graphToContext != null)
{
return("\"" + mainGraphContext.graphToContext[(INamedGraph)value].name + "\"");
}
else
{
return("null");
}
case AttributeKind.EnumAttr:
return(type.EnumType.PackagePrefixedName + "::" + type.EnumType[(int)value].Name);
case AttributeKind.NodeAttr:
case AttributeKind.EdgeAttr:
if (value != null)
{
return("\"" + graph.GetElementName((IGraphElement)value) + "\"");
}
else
{
return("null");
}
default:
throw new Exception("Unsupported attribute kind in export");
}
}
/// <summary>
/// Emits the attribute value as code
/// for an attribute of the given type with the given value into the stream writer
/// Main graph context is needed to get access to the graph -> env dictionary.
/// </summary>
public static void EmitAttribute(MainGraphExportContext mainGraphContext,
AttributeType attrType, object value, INamedGraph graph, StreamWriter sw)
{
if (attrType.Kind == AttributeKind.SetAttr)
{
IDictionary set = (IDictionary)value;
sw.Write("{0}{{", attrType.GetKindName());
bool first = true;
foreach (DictionaryEntry entry in set)
{
if (first)
{
sw.Write(ToString(mainGraphContext, entry.Key, attrType.ValueType, graph)); first = false;
}
else
{
sw.Write("," + ToString(mainGraphContext, entry.Key, attrType.ValueType, graph));
}
}
sw.Write("}");
}
else if (attrType.Kind == AttributeKind.MapAttr)
{
IDictionary map = (IDictionary)value;
sw.Write("{0}{{", attrType.GetKindName());
bool first = true;
foreach (DictionaryEntry entry in map)
{
if (first)
{
sw.Write(ToString(mainGraphContext, entry.Key, attrType.KeyType, graph)
+ "->" + ToString(mainGraphContext, entry.Value, attrType.ValueType, graph)); first = false;
}
else
{
sw.Write("," + ToString(mainGraphContext, entry.Key, attrType.KeyType, graph)
+ "->" + ToString(mainGraphContext, entry.Value, attrType.ValueType, graph));
}
}
sw.Write("}");
}
else if (attrType.Kind == AttributeKind.ArrayAttr)
{
IList array = (IList)value;
sw.Write("{0}[", attrType.GetKindName());
bool first = true;
foreach (object entry in array)
{
if (first)
{
sw.Write(ToString(mainGraphContext, entry, attrType.ValueType, graph)); first = false;
}
else
{
sw.Write("," + ToString(mainGraphContext, entry, attrType.ValueType, graph));
}
}
sw.Write("]");
}
else if (attrType.Kind == AttributeKind.DequeAttr)
{
IDeque deque = (IDeque)value;
sw.Write("{0}]", attrType.GetKindName());
bool first = true;
foreach (object entry in deque)
{
if (first)
{
sw.Write(ToString(mainGraphContext, entry, attrType.ValueType, graph)); first = false;
}
else
{
sw.Write("," + ToString(mainGraphContext, entry, attrType.ValueType, graph));
}
}
sw.Write("[");
}
else
{
sw.Write("{0}", ToString(mainGraphContext, value, attrType, graph));
}
}
/// <summary>
/// Emits the node/edge attribute initialization code in graph exporting
/// for an attribute of the given type with the given value into the stream writer.
/// </summary>
private static void EmitAttributeInitialization(MainGraphExportContext mainGraphContext,
AttributeType attrType, object value, INamedGraph graph, StreamWriter sw)
{
sw.Write(", {0} = ", attrType.Name);
EmitAttribute(mainGraphContext, attrType, value, graph, sw);
}
private static bool AddSubgraphAsNeeded(MainGraphExportContext mainGraphContext,
IGraphElement elem, AttributeType attrType)
{
if(attrType.Kind == AttributeKind.GraphAttr)
return AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)elem.GetAttribute(attrType.Name));
bool graphAdded = false;
if(attrType.Kind == AttributeKind.SetAttr
|| attrType.Kind == AttributeKind.MapAttr
|| attrType.Kind == AttributeKind.ArrayAttr
|| attrType.Kind == AttributeKind.DequeAttr)
{
if(attrType.ValueType.Kind == AttributeKind.GraphAttr)
{
if(attrType.Kind == AttributeKind.SetAttr)
{
IDictionary set = (IDictionary)elem.GetAttribute(attrType.Name);
foreach(DictionaryEntry entry in set)
{
graphAdded |= AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)entry.Key);
}
}
else if(attrType.Kind == AttributeKind.MapAttr)
{
IDictionary map = (IDictionary)elem.GetAttribute(attrType.Name);
foreach(DictionaryEntry entry in map)
{
graphAdded |= AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)entry.Value);
}
}
else if(attrType.Kind == AttributeKind.ArrayAttr)
{
IList array = (IList)elem.GetAttribute(attrType.Name);
foreach(object entry in array)
{
graphAdded |= AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)entry);
}
}
else if(attrType.Kind == AttributeKind.DequeAttr)
{
IDeque deque = (IDeque)elem.GetAttribute(attrType.Name);
foreach(object entry in deque)
{
graphAdded |= AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)entry);
}
}
}
}
if(attrType.Kind == AttributeKind.MapAttr)
{
if(attrType.KeyType.Kind == AttributeKind.GraphAttr)
{
IDictionary map = (IDictionary)elem.GetAttribute(attrType.Name);
foreach(DictionaryEntry entry in map)
{
graphAdded |= AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)entry.Key);
}
}
}
return graphAdded;
}
/// <summary>
/// Emits the node/edge attribute initialization code in graph exporting
/// for an attribute of the given type with the given value into the stream writer.
/// </summary>
private static void EmitAttributeInitialization(MainGraphExportContext mainGraphContext,
AttributeType attrType, object value, INamedGraph graph, StreamWriter sw)
{
sw.Write(", {0} = ", attrType.Name);
EmitAttribute(mainGraphContext, attrType, value, graph, sw);
}
/// <summary>
/// Event handler for IGraph.OnChangingNodeAttribute and IGraph.OnChangingEdgeAttribute.
/// </summary>
/// <param name="element">The node or edge whose attribute is changed.</param>
/// <param name="attrType">The type of the attribute to be changed.</param>
/// <param name="changeType">The type of the change which will be made.</param>
/// <param name="newValue">The new value of the attribute, if changeType==Assign.
/// Or the value to be inserted/removed if changeType==PutElement/RemoveElement on set.
/// Or the new map pair value to be inserted if changeType==PutElement on map.
/// Or the new value to be inserted/added if changeType==PutElement on array.
/// Or the new value to be assigned to the given position if changeType==AssignElement on array.</param>
/// <param name="keyValue">The map pair key to be inserted/removed if changeType==PutElement/RemoveElement on map.
/// The array index to be removed/written to if changeType==RemoveElement/AssignElement on array.</param>
void ChangingAttribute(IGraphElement element, AttributeType attrType,
AttributeChangeType changeType, Object newValue, Object keyValue)
{
foreach (RecordingState recordingState in recordings.Values)
{
MainGraphExportContext mainExportContext = recordingState.mainExportContext;
AddSubgraphsAsNeeded(mainExportContext, element, attrType, newValue, recordingState.writer);
AddSubgraphsAsNeeded(mainExportContext, element, attrType, keyValue, recordingState.writer);
switch (changeType)
{
case AttributeChangeType.Assign:
recordingState.writer.Write("@(\"" + graph.GetElementName(element) + "\")." + attrType.Name + " = ");
GRSExport.EmitAttribute(mainExportContext, attrType, newValue, graph, recordingState.writer);
recordingState.writer.WriteLine();
break;
case AttributeChangeType.PutElement:
recordingState.writer.Write("@(\"" + graph.GetElementName(element) + "\")." + attrType.Name);
switch (attrType.Kind)
{
case AttributeKind.SetAttr:
recordingState.writer.Write(".add(");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, newValue, attrType.ValueType, graph));
recordingState.writer.WriteLine(")");
break;
case AttributeKind.MapAttr:
recordingState.writer.Write(".add(");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, keyValue, attrType.KeyType, graph));
recordingState.writer.Write(", ");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, newValue, attrType.ValueType, graph));
recordingState.writer.WriteLine(")");
break;
case AttributeKind.ArrayAttr:
if (keyValue == null)
{
recordingState.writer.Write(".add(");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, newValue, attrType.ValueType, graph));
recordingState.writer.WriteLine(")");
}
else
{
recordingState.writer.Write(".add(");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, newValue, attrType.ValueType, graph));
recordingState.writer.Write(", ");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph));
recordingState.writer.WriteLine(")");
}
break;
case AttributeKind.DequeAttr:
if (keyValue == null)
{
recordingState.writer.Write(".add(");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, newValue, attrType.ValueType, graph));
recordingState.writer.WriteLine(")");
}
else
{
recordingState.writer.Write(".add(");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, newValue, attrType.ValueType, graph));
recordingState.writer.Write(", ");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph));
recordingState.writer.WriteLine(")");
}
break;
default:
throw new Exception("Wrong attribute type for attribute change type");
}
break;
case AttributeChangeType.RemoveElement:
recordingState.writer.Write("@(\"" + graph.GetElementName(element) + "\")." + attrType.Name);
switch (attrType.Kind)
{
case AttributeKind.SetAttr:
recordingState.writer.Write(".rem(");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, newValue, attrType.ValueType, graph));
recordingState.writer.WriteLine(")");
break;
case AttributeKind.MapAttr:
recordingState.writer.Write(".rem(");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, keyValue, attrType.KeyType, graph));
recordingState.writer.WriteLine(")");
break;
case AttributeKind.ArrayAttr:
recordingState.writer.Write(".rem(");
if (keyValue != null)
{
recordingState.writer.Write(GRSExport.ToString(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph));
}
recordingState.writer.WriteLine(")");
break;
case AttributeKind.DequeAttr:
recordingState.writer.Write(".rem(");
if (keyValue != null)
{
recordingState.writer.Write(GRSExport.ToString(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph));
}
recordingState.writer.WriteLine(")");
break;
default:
throw new Exception("Wrong attribute type for attribute change type");
}
break;
case AttributeChangeType.AssignElement:
recordingState.writer.Write("@(\"" + graph.GetElementName(element) + "\")." + attrType.Name);
switch (attrType.Kind)
{
case AttributeKind.ArrayAttr:
recordingState.writer.Write("[");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph));
recordingState.writer.Write("] = ");
recordingState.writer.WriteLine(GRSExport.ToString(mainExportContext, newValue, attrType.ValueType, graph));
break;
case AttributeKind.DequeAttr:
recordingState.writer.Write("[");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph));
recordingState.writer.Write("] = ");
recordingState.writer.WriteLine(GRSExport.ToString(mainExportContext, newValue, attrType.ValueType, graph));
break;
case AttributeKind.MapAttr:
recordingState.writer.Write("[");
recordingState.writer.Write(GRSExport.ToString(mainExportContext, keyValue, attrType.KeyType, graph));
recordingState.writer.Write("] = ");
recordingState.writer.WriteLine(GRSExport.ToString(mainExportContext, newValue, attrType.ValueType, graph));
break;
default:
throw new Exception("Wrong attribute type for attribute change type");
}
break;
default:
throw new Exception("Unknown attribute change type");
}
}
}
public static bool ExportSingleGraph(MainGraphExportContext mainGraphContext,
GraphExportContext context, StreamWriter sw)
{
bool subgraphAdded = false;
if(context.modelPathPrefix != null)
sw.WriteLine("new graph \"" + context.modelPathPrefix + context.graph.Model.ModelName + "\" \"" + context.name + "\"");
else
sw.WriteLine("add new graph \"" + context.name + "\"");
// emit nodes
int numNodes = 0;
foreach(INode node in context.graph.Nodes)
{
sw.Write("new :{0}($ = \"{1}\"", node.Type.PackagePrefixedName, context.graph.GetElementName(node));
foreach(AttributeType attrType in node.Type.AttributeTypes)
{
if(IsNodeOrEdgeUsedInAttribute(attrType))
{
context.nodeOrEdgeUsedInAttribute = true;
continue;
}
if(IsGraphUsedInAttribute(attrType))
{
context.subgraphUsedInAttribute = true;
subgraphAdded |= AddSubgraphAsNeeded(mainGraphContext, node, attrType);
continue;
}
object value = node.GetAttribute(attrType.Name);
EmitAttributeInitialization(mainGraphContext, attrType, value, context.graph, sw);
}
sw.WriteLine(")");
numNodes++;
}
if(context.modelPathPrefix != null)
sw.WriteLine("# total number of nodes: {0}", numNodes);
else
sw.WriteLine("# total number of nodes in subgraph {0}: {1}", context.name, numNodes);
sw.WriteLine();
// emit edges
int numEdges = 0;
foreach(INode node in context.graph.Nodes)
{
foreach(IEdge edge in node.Outgoing)
{
sw.Write("new @(\"{0}\") - :{1}($ = \"{2}\"", context.graph.GetElementName(node),
edge.Type.PackagePrefixedName, context.graph.GetElementName(edge));
foreach(AttributeType attrType in edge.Type.AttributeTypes)
{
if(IsNodeOrEdgeUsedInAttribute(attrType))
{
context.nodeOrEdgeUsedInAttribute = true;
continue;
}
if(IsGraphUsedInAttribute(attrType))
{
context.subgraphUsedInAttribute = true;
subgraphAdded |= AddSubgraphAsNeeded(mainGraphContext, edge, attrType);
continue;
}
object value = edge.GetAttribute(attrType.Name);
// TODO: Add support for null values, as the default initializers could assign non-null values!
if(value != null)
{
EmitAttributeInitialization(mainGraphContext, attrType, value, context.graph, sw);
}
}
sw.WriteLine(") -> @(\"{0}\")", context.graph.GetElementName(edge.Target));
numEdges++;
}
}
if(context.modelPathPrefix != null)
sw.WriteLine("# total number of edges: {0}", numEdges);
else
sw.WriteLine("# total number of edges in subgraph {0}: {1}", context.name, numEdges);
sw.WriteLine();
// emit node/edge valued attributes
if(context.nodeOrEdgeUsedInAttribute)
{
foreach(INode node in context.graph.Nodes)
{
foreach(AttributeType attrType in node.Type.AttributeTypes)
{
if(!IsNodeOrEdgeUsedInAttribute(attrType))
continue;
if(IsGraphUsedInAttribute(attrType))
continue;
object value = node.GetAttribute(attrType.Name);
sw.Write("@(\"{0}\").{1} = ", context.graph.GetElementName(node), attrType.Name);
EmitAttribute(mainGraphContext, attrType, value, context.graph, sw);
sw.Write("\n");
}
foreach(IEdge edge in node.Outgoing)
{
foreach(AttributeType attrType in edge.Type.AttributeTypes)
{
if(!IsNodeOrEdgeUsedInAttribute(attrType))
continue;
if(IsGraphUsedInAttribute(attrType))
continue;
object value = edge.GetAttribute(attrType.Name);
sw.Write("@(\"{0}\").{1} = ", context.graph.GetElementName(edge), attrType.Name);
EmitAttribute(mainGraphContext, attrType, value, context.graph, sw);
sw.Write("\n");
}
}
}
}
if(!context.subgraphUsedInAttribute)
context.areGraphAttributesExported = true;
context.isExported = true;
return subgraphAdded;
}
public RecordingState(StreamWriter writer, MainGraphExportContext mainExportContext)
{
this.writer = writer;
this.mainExportContext = mainExportContext;
}
private bool AddSubgraphsAsNeeded(MainGraphExportContext mainExportContext,
IGraphElement element, AttributeType attrType, Object value, StreamWriter writer)
{
if(!GRSExport.IsGraphUsedInAttribute(attrType))
return false;
if(value == null)
return false;
if(!(value is INamedGraph))
return false;
bool wasAdded = GRSExport.AddSubgraphAsNeeded(mainExportContext, (INamedGraph)value);
if(wasAdded)
{
restart:
foreach(KeyValuePair<string, GraphExportContext> kvp in mainExportContext.nameToContext)
{
GraphExportContext context = kvp.Value;
if(!context.isExported)
{
wasAdded = GRSExport.ExportSingleGraph(mainExportContext, context, writer);
if(wasAdded)
goto restart;
}
}
AddGraphAttributes(mainExportContext, writer);
writer.WriteLine("in \"" + mainExportContext.graphToContext[graph].name + "\" # after emitting new subgraph for attribute");
return true;
}
return false;
}
private static void AddGraphAttributes(MainGraphExportContext mainExportContext, StreamWriter writer)
{
foreach(KeyValuePair<string, GraphExportContext> kvp in mainExportContext.nameToContext)
{
GraphExportContext context = kvp.Value;
GRSExport.EmitSubgraphAttributes(mainExportContext, context, writer);
}
}
/// <summary>
/// Type needed for enum, otherwise null ok.
/// Graph needed for node/edge, otherwise null ok.
/// Main graph context needed to get access to the graph -> env dictionary for subgraph.
/// </summary>
public static String ToString(MainGraphExportContext mainGraphContext,
object value, AttributeType type, INamedGraph graph)
{
switch(type.Kind)
{
case AttributeKind.ByteAttr:
return ((sbyte)value).ToString()+"Y";
case AttributeKind.ShortAttr:
return ((short)value).ToString()+"S";
case AttributeKind.IntegerAttr:
return ((int)value).ToString();
case AttributeKind.LongAttr:
return ((long)value).ToString()+"L";
case AttributeKind.BooleanAttr:
return ((bool)value).ToString();
case AttributeKind.StringAttr:
if(value == null) return "\"\"";
else return "\"" + ((string)value).Replace("\\", "\\\\").Replace("\"", "\\\"") + "\"";
case AttributeKind.FloatAttr:
return ((float)value).ToString(System.Globalization.CultureInfo.InvariantCulture)+"f";
case AttributeKind.DoubleAttr:
return ((double)value).ToString(System.Globalization.CultureInfo.InvariantCulture);
case AttributeKind.ObjectAttr:
return graph.Model.Serialize(value, type, graph);
case AttributeKind.GraphAttr:
if(value != null && mainGraphContext != null && mainGraphContext.graphToContext != null)
return "\"" + mainGraphContext.graphToContext[(INamedGraph)value].name + "\"";
else
return "null";
case AttributeKind.EnumAttr:
return type.EnumType.PackagePrefixedName + "::" + type.EnumType[(int)value].Name;
case AttributeKind.NodeAttr:
case AttributeKind.EdgeAttr:
if(value != null)
return "\"" + graph.GetElementName((IGraphElement)value) + "\"";
else
return "null";
default:
throw new Exception("Unsupported attribute kind in export");
}
}
/// <summary>
/// Emits the attribute value as code
/// for an attribute of the given type with the given value into the stream writer
/// Main graph context is needed to get access to the graph -> env dictionary.
/// </summary>
public static void EmitAttribute(MainGraphExportContext mainGraphContext,
AttributeType attrType, object value, INamedGraph graph, StreamWriter sw)
{
if(attrType.Kind==AttributeKind.SetAttr)
{
IDictionary set=(IDictionary)value;
sw.Write("{0}{{", attrType.GetKindName());
bool first = true;
foreach(DictionaryEntry entry in set)
{
if(first) { sw.Write(ToString(mainGraphContext, entry.Key, attrType.ValueType, graph)); first = false; }
else { sw.Write("," + ToString(mainGraphContext, entry.Key, attrType.ValueType, graph)); }
}
sw.Write("}");
}
else if(attrType.Kind==AttributeKind.MapAttr)
{
IDictionary map=(IDictionary)value;
sw.Write("{0}{{", attrType.GetKindName());
bool first = true;
foreach(DictionaryEntry entry in map)
{
if(first) { sw.Write(ToString(mainGraphContext, entry.Key, attrType.KeyType, graph)
+ "->" + ToString(mainGraphContext, entry.Value, attrType.ValueType, graph)); first = false;
}
else { sw.Write("," + ToString(mainGraphContext, entry.Key, attrType.KeyType, graph)
+ "->" + ToString(mainGraphContext, entry.Value, attrType.ValueType, graph)); }
}
sw.Write("}");
}
else if(attrType.Kind == AttributeKind.ArrayAttr)
{
IList array = (IList)value;
sw.Write("{0}[", attrType.GetKindName());
bool first = true;
foreach(object entry in array)
{
if(first) { sw.Write(ToString(mainGraphContext, entry, attrType.ValueType, graph)); first = false; }
else { sw.Write("," + ToString(mainGraphContext, entry, attrType.ValueType, graph)); }
}
sw.Write("]");
}
else if(attrType.Kind == AttributeKind.DequeAttr)
{
IDeque deque = (IDeque)value;
sw.Write("{0}]", attrType.GetKindName());
bool first = true;
foreach(object entry in deque)
{
if(first) { sw.Write(ToString(mainGraphContext, entry, attrType.ValueType, graph)); first = false; }
else { sw.Write("," + ToString(mainGraphContext, entry, attrType.ValueType, graph)); }
}
sw.Write("[");
}
else
{
sw.Write("{0}", ToString(mainGraphContext, value, attrType, graph));
}
}
/// <summary>
/// Event handler for IGraph.OnChangingNodeAttribute and IGraph.OnChangingEdgeAttribute and IGraph.OnChangingObjectAttribute.
/// </summary>
/// <param name="owner">The node or edge or object whose attribute is changed.</param>
/// <param name="attrType">The type of the attribute to be changed.</param>
/// <param name="changeType">The type of the change which will be made.</param>
/// <param name="newValue">The new value of the attribute, if changeType==Assign.
/// Or the value to be inserted/removed if changeType==PutElement/RemoveElement on set.
/// Or the new map pair value to be inserted if changeType==PutElement on map.
/// Or the new value to be inserted/added if changeType==PutElement on array.
/// Or the new value to be assigned to the given position if changeType==AssignElement on array.</param>
/// <param name="keyValue">The map pair key to be inserted/removed if changeType==PutElement/RemoveElement on map.
/// The array index to be removed/written to if changeType==RemoveElement/AssignElement on array.</param>
void ChangingAttribute(IAttributeBearer owner, AttributeType attrType,
AttributeChangeType changeType, object newValue, object keyValue)
{
foreach (RecordingState recordingState in recordings.Values)
{
MainGraphExportContext mainExportContext = recordingState.mainExportContext;
StringBuilder deferredInits = new StringBuilder();
AddSubgraphsAsNeeded(mainExportContext, owner, attrType, newValue, recordingState.writer);
AddSubgraphsAsNeeded(mainExportContext, owner, attrType, keyValue, recordingState.writer);
switch (changeType)
{
case AttributeChangeType.Assign:
if (owner is IGraphElement)
{
recordingState.writer.Write("@(\"" + graph.GetElementName((IGraphElement)owner) + "\")." + attrType.Name + " = ");
}
else
{
EmitObjectAttributeAssignmentCreatingAsNeeded((IObject)owner, attrType, mainExportContext, recordingState);
}
StringBuilder sb = new StringBuilder();
GRSExport.EmitAttribute(mainExportContext, attrType, newValue, graph, recordingState.writer, sb);
recordingState.writer.WriteLine();
recordingState.writer.Write(sb.ToString());
break;
case AttributeChangeType.PutElement:
if (owner is IGraphElement)
{
recordingState.writer.Write("@(\"" + graph.GetElementName((IGraphElement)owner) + "\")." + attrType.Name);
}
else
{
EmitObjectAttributeAssignmentCreatingAsNeeded((IObject)owner, attrType, mainExportContext, recordingState);
}
switch (attrType.Kind)
{
case AttributeKind.SetAttr:
recordingState.writer.Write(".add(");
GRSExport.EmitAttributeValue(mainExportContext, newValue, attrType.ValueType, graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine(")");
break;
case AttributeKind.MapAttr:
recordingState.writer.Write(".add(");
GRSExport.EmitAttributeValue(mainExportContext, keyValue, attrType.KeyType, graph, recordingState.writer, deferredInits);
recordingState.writer.Write(", ");
GRSExport.EmitAttributeValue(mainExportContext, newValue, attrType.ValueType, graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine(")");
break;
case AttributeKind.ArrayAttr:
if (keyValue == null)
{
recordingState.writer.Write(".add(");
GRSExport.EmitAttributeValue(mainExportContext, newValue, attrType.ValueType, graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine(")");
}
else
{
recordingState.writer.Write(".add(");
GRSExport.EmitAttributeValue(mainExportContext, newValue, attrType.ValueType, graph, recordingState.writer, deferredInits);
recordingState.writer.Write(", ");
GRSExport.EmitAttributeValue(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine(")");
}
break;
case AttributeKind.DequeAttr:
if (keyValue == null)
{
recordingState.writer.Write(".add(");
GRSExport.EmitAttributeValue(mainExportContext, newValue, attrType.ValueType, graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine(")");
}
else
{
recordingState.writer.Write(".add(");
GRSExport.EmitAttributeValue(mainExportContext, newValue, attrType.ValueType, graph, recordingState.writer, deferredInits);
recordingState.writer.Write(", ");
GRSExport.EmitAttributeValue(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine(")");
}
break;
default:
throw new Exception("Wrong attribute type for attribute change type");
}
break;
case AttributeChangeType.RemoveElement:
if (owner is IGraphElement)
{
recordingState.writer.Write("@(\"" + graph.GetElementName((IGraphElement)owner) + "\")." + attrType.Name);
}
else
{
EmitObjectAttributeAssignmentCreatingAsNeeded((IObject)owner, attrType, mainExportContext, recordingState);
}
switch (attrType.Kind)
{
case AttributeKind.SetAttr:
recordingState.writer.Write(".rem(");
GRSExport.EmitAttributeValue(mainExportContext, newValue, attrType.ValueType, graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine(")");
break;
case AttributeKind.MapAttr:
recordingState.writer.Write(".rem(");
GRSExport.EmitAttributeValue(mainExportContext, keyValue, attrType.KeyType, graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine(")");
break;
case AttributeKind.ArrayAttr:
recordingState.writer.Write(".rem(");
if (keyValue != null)
{
GRSExport.EmitAttributeValue(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph, recordingState.writer, deferredInits);
}
recordingState.writer.WriteLine(")");
break;
case AttributeKind.DequeAttr:
recordingState.writer.Write(".rem(");
if (keyValue != null)
{
GRSExport.EmitAttributeValue(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph, recordingState.writer, deferredInits);
}
recordingState.writer.WriteLine(")");
break;
default:
throw new Exception("Wrong attribute type for attribute change type");
}
break;
case AttributeChangeType.AssignElement:
if (owner is IGraphElement)
{
recordingState.writer.Write("@(\"" + graph.GetElementName((IGraphElement)owner) + "\")." + attrType.Name);
}
else
{
EmitObjectAttributeAssignmentCreatingAsNeeded((IObject)owner, attrType, mainExportContext, recordingState);
}
switch (attrType.Kind)
{
case AttributeKind.ArrayAttr:
recordingState.writer.Write("[");
GRSExport.EmitAttributeValue(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph, recordingState.writer, deferredInits);
recordingState.writer.Write("] = ");
GRSExport.EmitAttributeValue(mainExportContext, newValue, attrType.ValueType, graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine();
break;
case AttributeKind.DequeAttr:
recordingState.writer.Write("[");
GRSExport.EmitAttributeValue(mainExportContext, keyValue, new AttributeType(null, null, AttributeKind.IntegerAttr, null, null, null, null, null, null, typeof(int)), graph, recordingState.writer, deferredInits);
recordingState.writer.Write("] = ");
GRSExport.EmitAttributeValue(mainExportContext, newValue, attrType.ValueType, graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine();
break;
case AttributeKind.MapAttr:
recordingState.writer.Write("[");
GRSExport.EmitAttributeValue(mainExportContext, keyValue, attrType.KeyType, graph, recordingState.writer, deferredInits);
recordingState.writer.Write("] = ");
GRSExport.EmitAttributeValue(mainExportContext, newValue, attrType.ValueType, graph, recordingState.writer, deferredInits);
recordingState.writer.WriteLine();
break;
default:
throw new Exception("Wrong attribute type for attribute change type");
}
break;
default:
throw new Exception("Unknown attribute change type");
}
recordingState.writer.Write(deferredInits.ToString());
}
}
public RecordingState(StreamWriter writer, MainGraphExportContext mainExportContext)
{
this.writer = writer;
this.mainExportContext = mainExportContext;
}
public static bool AddSubgraphAsNeeded(MainGraphExportContext mainGraphContext,
INamedGraph graph)
{
if(graph!=null && !mainGraphContext.graphToContext.ContainsKey(graph))
{
GraphExportContext subgraphContext = new GraphExportContext(mainGraphContext, graph);
mainGraphContext.graphToContext[graph] = subgraphContext;
mainGraphContext.nameToContext[subgraphContext.name] = subgraphContext;
return true;
}
else
return false;
}
private static bool AddSubgraphAsNeeded(MainGraphExportContext mainGraphContext,
IGraphElement elem, AttributeType attrType)
{
if (attrType.Kind == AttributeKind.GraphAttr)
{
return(AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)elem.GetAttribute(attrType.Name)));
}
bool graphAdded = false;
if (attrType.Kind == AttributeKind.SetAttr ||
attrType.Kind == AttributeKind.MapAttr ||
attrType.Kind == AttributeKind.ArrayAttr ||
attrType.Kind == AttributeKind.DequeAttr)
{
if (attrType.ValueType.Kind == AttributeKind.GraphAttr)
{
if (attrType.Kind == AttributeKind.SetAttr)
{
IDictionary set = (IDictionary)elem.GetAttribute(attrType.Name);
foreach (DictionaryEntry entry in set)
{
graphAdded |= AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)entry.Key);
}
}
else if (attrType.Kind == AttributeKind.MapAttr)
{
IDictionary map = (IDictionary)elem.GetAttribute(attrType.Name);
foreach (DictionaryEntry entry in map)
{
graphAdded |= AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)entry.Value);
}
}
else if (attrType.Kind == AttributeKind.ArrayAttr)
{
IList array = (IList)elem.GetAttribute(attrType.Name);
foreach (object entry in array)
{
graphAdded |= AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)entry);
}
}
else if (attrType.Kind == AttributeKind.DequeAttr)
{
IDeque deque = (IDeque)elem.GetAttribute(attrType.Name);
foreach (object entry in deque)
{
graphAdded |= AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)entry);
}
}
}
}
if (attrType.Kind == AttributeKind.MapAttr)
{
if (attrType.KeyType.Kind == AttributeKind.GraphAttr)
{
IDictionary map = (IDictionary)elem.GetAttribute(attrType.Name);
foreach (DictionaryEntry entry in map)
{
graphAdded |= AddSubgraphAsNeeded(mainGraphContext, (INamedGraph)entry.Key);
}
}
}
return(graphAdded);
}
public static void EmitSubgraphAttributes(MainGraphExportContext mainGraphContext,
GraphExportContext context, StreamWriter sw)
{
if(context.areGraphAttributesExported)
return;
sw.WriteLine("in \"" + context.name + "\"");
foreach(INode node in context.graph.Nodes)
{
foreach(AttributeType attrType in node.Type.AttributeTypes)
{
if(!IsGraphUsedInAttribute(attrType))
continue;
object value = node.GetAttribute(attrType.Name);
sw.Write("@(\"{0}\").{1} = ", context.graph.GetElementName(node), attrType.Name);
EmitAttribute(mainGraphContext, attrType, value, context.graph, sw);
sw.Write("\n");
}
foreach(IEdge edge in node.Outgoing)
{
foreach(AttributeType attrType in edge.Type.AttributeTypes)
{
if(!IsGraphUsedInAttribute(attrType))
continue;
object value = edge.GetAttribute(attrType.Name);
sw.Write("@(\"{0}\").{1} = ", context.graph.GetElementName(edge), attrType.Name);
EmitAttribute(mainGraphContext, attrType, value, context.graph, sw);
sw.Write("\n");
}
}
}
context.areGraphAttributesExported = true;
}
public static bool ExportSingleGraph(MainGraphExportContext mainGraphContext,
GraphExportContext context, StreamWriter sw)
{
bool subgraphAdded = false;
if (context.modelPathPrefix != null)
{
sw.WriteLine("new graph \"" + context.modelPathPrefix + context.graph.Model.ModelName + "\" \"" + context.name + "\"");
}
else
{
sw.WriteLine("add new graph \"" + context.name + "\"");
}
// emit nodes
int numNodes = 0;
foreach (INode node in context.graph.Nodes)
{
sw.Write("new :{0}($ = \"{1}\"", node.Type.PackagePrefixedName, context.graph.GetElementName(node));
foreach (AttributeType attrType in node.Type.AttributeTypes)
{
if (IsNodeOrEdgeUsedInAttribute(attrType))
{
context.nodeOrEdgeUsedInAttribute = true;
continue;
}
if (IsGraphUsedInAttribute(attrType))
{
context.subgraphUsedInAttribute = true;
subgraphAdded |= AddSubgraphAsNeeded(mainGraphContext, node, attrType);
continue;
}
object value = node.GetAttribute(attrType.Name);
EmitAttributeInitialization(mainGraphContext, attrType, value, context.graph, sw);
}
sw.WriteLine(")");
numNodes++;
}
if (context.modelPathPrefix != null)
{
sw.WriteLine("# total number of nodes: {0}", numNodes);
}
else
{
sw.WriteLine("# total number of nodes in subgraph {0}: {1}", context.name, numNodes);
}
sw.WriteLine();
// emit edges
int numEdges = 0;
foreach (INode node in context.graph.Nodes)
{
foreach (IEdge edge in node.Outgoing)
{
sw.Write("new @(\"{0}\") - :{1}($ = \"{2}\"", context.graph.GetElementName(node),
edge.Type.PackagePrefixedName, context.graph.GetElementName(edge));
foreach (AttributeType attrType in edge.Type.AttributeTypes)
{
if (IsNodeOrEdgeUsedInAttribute(attrType))
{
context.nodeOrEdgeUsedInAttribute = true;
continue;
}
if (IsGraphUsedInAttribute(attrType))
{
context.subgraphUsedInAttribute = true;
subgraphAdded |= AddSubgraphAsNeeded(mainGraphContext, edge, attrType);
continue;
}
object value = edge.GetAttribute(attrType.Name);
// TODO: Add support for null values, as the default initializers could assign non-null values!
if (value != null)
{
EmitAttributeInitialization(mainGraphContext, attrType, value, context.graph, sw);
}
}
sw.WriteLine(") -> @(\"{0}\")", context.graph.GetElementName(edge.Target));
numEdges++;
}
}
if (context.modelPathPrefix != null)
{
sw.WriteLine("# total number of edges: {0}", numEdges);
}
else
{
sw.WriteLine("# total number of edges in subgraph {0}: {1}", context.name, numEdges);
}
sw.WriteLine();
// emit node/edge valued attributes
if (context.nodeOrEdgeUsedInAttribute)
{
foreach (INode node in context.graph.Nodes)
{
foreach (AttributeType attrType in node.Type.AttributeTypes)
{
if (!IsNodeOrEdgeUsedInAttribute(attrType))
{
continue;
}
if (IsGraphUsedInAttribute(attrType))
{
continue;
}
object value = node.GetAttribute(attrType.Name);
sw.Write("@(\"{0}\").{1} = ", context.graph.GetElementName(node), attrType.Name);
EmitAttribute(mainGraphContext, attrType, value, context.graph, sw);
sw.Write("\n");
}
foreach (IEdge edge in node.Outgoing)
{
foreach (AttributeType attrType in edge.Type.AttributeTypes)
{
if (!IsNodeOrEdgeUsedInAttribute(attrType))
{
continue;
}
if (IsGraphUsedInAttribute(attrType))
{
continue;
}
object value = edge.GetAttribute(attrType.Name);
sw.Write("@(\"{0}\").{1} = ", context.graph.GetElementName(edge), attrType.Name);
EmitAttribute(mainGraphContext, attrType, value, context.graph, sw);
sw.Write("\n");
}
}
}
}
if (!context.subgraphUsedInAttribute)
{
context.areGraphAttributesExported = true;
}
context.isExported = true;
return(subgraphAdded);
}
/// <summary>
/// Exports the given graph to the file given by the stream writer in grs format.
/// Any errors will be reported by exception.
/// Returns the graph export context of the main graph.
/// </summary>
/// <param name="graph">The graph to export. Must be a named graph.</param>
/// <param name="sw">The stream writer of the file to export into. The stream writer is not closed automatically.</param>
/// <param name="modelPathPrefix">Path to the model.</param>
public static MainGraphExportContext ExportYouMustCloseStreamWriter(INamedGraph graph, StreamWriter sw, string modelPathPrefix)
{
MainGraphExportContext mainGraphContext = new MainGraphExportContext(graph);
mainGraphContext.graphToContext[mainGraphContext.graph] = mainGraphContext;
mainGraphContext.nameToContext[mainGraphContext.name] = mainGraphContext;
mainGraphContext.modelPathPrefix = modelPathPrefix;
sw.WriteLine("# begin of graph \"{0}\" saved by GrsExport", mainGraphContext.name);
sw.WriteLine();
bool subgraphAdded = ExportSingleGraph(mainGraphContext, mainGraphContext, sw);
if(subgraphAdded)
{
restart:
foreach(KeyValuePair<string, GraphExportContext> kvp in mainGraphContext.nameToContext)
{
GraphExportContext context = kvp.Value;
if(!context.isExported)
{
subgraphAdded = ExportSingleGraph(mainGraphContext, context, sw);
if(subgraphAdded)
goto restart;
}
}
foreach(KeyValuePair<string, GraphExportContext> kvp in mainGraphContext.nameToContext)
{
GraphExportContext context = kvp.Value;
EmitSubgraphAttributes(mainGraphContext, context, sw);
}
sw.WriteLine("in \"" + mainGraphContext.name + "\""); // after import in main graph
}
sw.WriteLine("# end of graph \"{0}\" saved by GrsExport", mainGraphContext.name);
sw.WriteLine();
return mainGraphContext;
}