/// <summary> Creates source code for a Group and returns a GroupDef object that
/// describes the Group's name, optionality, repeatability. The source
/// code is written under the given directory.
/// The structures list may contain [] and {} pairs representing
/// nested groups and their optionality and repeatability. In these cases
/// this method is called recursively.
/// If the given structures list begins and ends with repetition and/or
/// optionality markers the repetition and optionality of the returned
/// GroupDef are set accordingly.
/// <param name="structures">a list of the structures that comprise this group - must
/// be at least 2 long
/// </param>
/// <param name="groupName">The group name</param>
/// <param name="version">The version of message</param>
/// <param name="baseDirectory">the directory to which files should be written
/// </param>
/// <param name="message">the message to which this group belongs
/// </param>
/// <throws> HL7Exception if the repetition and optionality markers are not </throws>
/// </summary>
public static GroupDef writeGroup(IStructureDef[] structures, String groupName, String baseDirectory, String version,
String message)
{
//make base directory
if (!(baseDirectory.EndsWith("\\") || baseDirectory.EndsWith("/")))
{
baseDirectory = baseDirectory + "/";
}
FileInfo targetDir =
SourceGenerator.makeDirectory(baseDirectory + PackageManager.GetVersionPackagePath(version) + "Group");
// some group names are troublesome and have "/" which will cause problems when writing files
groupName = groupName.Replace("/", "_");
GroupDef group = getGroupDef(structures, groupName, baseDirectory, version, message);
using (StreamWriter out_Renamed = new StreamWriter(targetDir.FullName + @"\" + group.Name + ".cs"))
{
out_Renamed.Write(makePreamble(group, version));
out_Renamed.Write(makeConstructor(group, version));
IStructureDef[] shallow = group.Structures;
for (int i = 0; i < shallow.Length; i++)
{
out_Renamed.Write(makeAccessor(group, i));
}
out_Renamed.Write("}\r\n"); //Closing class
out_Renamed.Write("}\r\n"); //Closing namespace
}
return(group);
}
/// <summary> Returns heading material for class source code (package, imports, JavaDoc, class
/// declaration).
/// </summary>
public static String makePreamble(GroupDef group, String version)
{
StringBuilder preamble = new StringBuilder();
preamble.Append("using NHapi.Base.Parser;\r\n");
preamble.Append("using NHapi.Base;\r\n");
preamble.Append("using NHapi.Base.Log;\r\n");
preamble.Append("using System;\r\n");
preamble.Append("using System.Collections.Generic;\r\n");
preamble.Append("using ");
preamble.Append((string)PackageManager.GetVersionPackageName(version));
preamble.Append("Segment;\r\n");
preamble.Append("using ");
preamble.Append((string)PackageManager.GetVersionPackageName(version));
preamble.Append("Datatype;\r\n");
preamble.Append("using NHapi.Base.Model;\r\n\r\n");
preamble.Append("namespace ");
preamble.Append((string)PackageManager.GetVersionPackageName(version));
preamble.Append("Group\n");
preamble.Append("{\r\n");
preamble.Append("///<summary>\r\n");
preamble.Append("///Represents the ");
preamble.Append(group.Name);
preamble.Append(" Group. A Group is an ordered collection of message \r\n");
preamble.Append("/// segments that can repeat together or be optionally in/excluded together.\r\n");
preamble.Append("/// This Group contains the following elements: \r\n");
preamble.Append(makeElementsDoc(group.Structures));
preamble.Append("///</summary>\r\n");
preamble.Append("[Serializable]\r\n");
preamble.Append("public class ");
preamble.Append(group.Name);
preamble.Append(" : AbstractGroup {\r\n\r\n");
return(preamble.ToString());
}
/// <summary> Returns source code for the constructor for this Group class. </summary>
public static string MakeConstructor(GroupDef group, string version)
{
var useFactory = ConfigurationSettings.UseFactory;
var source = new StringBuilder();
source.Append("\t///<summary> \r\n");
source.Append("\t/// Creates a new ");
source.Append(group.Name);
source.Append(" Group.\r\n");
source.Append("\t///</summary>\r\n");
source.Append("\tpublic ");
source.Append(group.Name);
source.Append("(IGroup parent, IModelClassFactory factory) : base(parent, factory){\r\n");
source.Append("\t try {\r\n");
var structs = group.Structures;
var numStructs = structs.Length;
for (var i = 0; i < numStructs; i++)
{
var def = structs[i];
if (def.Name.Equals("?"))
{
source.Append("\t this.addNonstandardSegment(\"ANY\");\r\n");
}
else
{
if (useFactory)
{
source.Append("\t this.add(factory.get");
source.Append((def is GroupDef) ? "Group" : "Segment");
source.Append("Class(\"");
source.Append(def.Name);
source.Append("\", \"");
source.Append(version);
source.Append("\"), ");
}
else
{
source.Append("\t this.add(typeof(");
source.Append(def.Name);
source.Append("), ");
}
source.Append(def.Required.ToString().ToLower());
source.Append(", ");
source.Append(def.Repeating.ToString().ToLower());
source.Append(");\r\n");
}
}
source.Append("\t } catch(HL7Exception e) {\r\n");
source.Append("\t HapiLogFactory.GetHapiLog(GetType()).Error(\"Unexpected error creating ");
source.Append(group.Name);
source.Append(" - this is probably a bug in the source code generator.\", e);\r\n");
source.Append("\t }\r\n");
source.Append("\t}\r\n\r\n");
return(source.ToString());
}
/// <summary> Creates source code for a specific message structure and
/// writes it under the specified directory.
/// throws IllegalArgumentException if there is no message structure
/// for this message in the normative database
/// </summary>
public static void make(String message, String baseDirectory, String chapter, String version)
{
try
{
SegmentDef[] segments = getSegments(message, version);
//System.out.println("Making: " + message + " with " + segments.length + " segments (not writing message code - just groups)");
GroupDef group = GroupGenerator.getGroupDef(segments, null, baseDirectory, version, message);
IStructureDef[] contents = group.Structures;
//make base directory
if (!(baseDirectory.EndsWith("\\") || baseDirectory.EndsWith("/")))
{
baseDirectory = baseDirectory + "/";
}
FileInfo targetDir =
SourceGenerator.makeDirectory(baseDirectory + PackageManager.GetVersionPackagePath(version) + "Message");
Console.Out.WriteLine("Writing " + message + " to " + targetDir.FullName);
using (StreamWriter out_Renamed = new StreamWriter(targetDir.FullName + "/" + message + ".cs"))
{
out_Renamed.Write(makePreamble(contents, message, chapter, version));
out_Renamed.Write(makeConstructor(contents, message, version));
for (int i = 0; i < contents.Length; i++)
{
string groupAccessor = GroupGenerator.makeAccessor(@group, i);
out_Renamed.Write(groupAccessor);
}
//add implementation of model.control interface, if any
out_Renamed.Write("}\r\n"); //End class
out_Renamed.Write("}\r\n"); //End namespace
}
}
catch (Exception e)
{
log.Error("Error while creating source code", e);
log.Warn("Warning: could not write source code for message structure " + message + " - " + e.GetType().FullName +
": " + e.Message);
}
}
/// <summary> Returns source code for an accessor method for a particular Structure. </summary>
public static String makeAccessor(GroupDef group, int structure)
{
StringBuilder source = new StringBuilder();
IStructureDef def = group.Structures[structure];
String name = def.Name;
String indexName = group.getIndexName(name);
String getterName = indexName;
if (def is GroupDef)
{
String unqualifiedName = ((GroupDef)def).UnqualifiedName;
getterName = group.getIndexName(unqualifiedName);
}
//make accessor for first (or only) rep ...
source.Append("\t///<summary>\r\n");
source.Append("\t/// Returns ");
if (def.Repeating)
{
source.Append(" first repetition of ");
}
source.Append(indexName);
source.Append(" (");
source.Append(def.Description);
source.Append(") - creates it if necessary\r\n");
source.Append("\t///</summary>\r\n");
source.Append("\tpublic ");
source.Append(def.Name);
source.Append(" ");
if (def.Repeating)
{
source.Append("Get");
source.Append(getterName);
source.Append("() {\r\n");
}
else
{
source.Append(getterName);
source.Append(" { \r\n");
source.Append("get{\r\n");
}
source.Append("\t ");
source.Append(def.Name);
source.Append(" ret = null;\r\n");
source.Append("\t try {\r\n");
source.Append("\t ret = (");
source.Append(def.Name);
source.Append(")this.GetStructure(\"");
source.Append(getterName);
source.Append("\");\r\n");
source.Append("\t } catch(HL7Exception e) {\r\n");
source.Append(
"\t HapiLogFactory.GetHapiLog(GetType()).Error(\"Unexpected error accessing data - this is probably a bug in the source code generator.\", e);\r\n");
source.Append("\t throw new System.Exception(\"An unexpected error ocurred\",e);\r\n");
source.Append("\t }\r\n");
source.Append("\t return ret;\r\n");
if (!def.Repeating)
{
source.Append("\t}\r\n");
}
source.Append("\t}\r\n\r\n");
if (def.Repeating)
{
//make accessor for specific rep ...
source.Append("\t///<summary>\r\n");
source.Append("\t///Returns a specific repetition of ");
source.Append(indexName);
source.Append("\r\n");
source.Append("\t/// * (");
source.Append(def.Description);
source.Append(") - creates it if necessary\r\n");
source.Append("\t/// throws HL7Exception if the repetition requested is more than one \r\n");
source.Append("\t/// greater than the number of existing repetitions.\r\n");
source.Append("\t///</summary>\r\n");
source.Append("\tpublic ");
source.Append(def.Name);
source.Append(" Get");
source.Append(getterName);
source.Append("(int rep) { \r\n");
source.Append("\t return (");
source.Append(def.Name);
source.Append(")this.GetStructure(\"");
source.Append(getterName);
source.Append("\", rep);\r\n");
source.Append("\t}\r\n\r\n");
//make accessor for number of reps
source.Append("\t/** \r\n");
source.Append("\t * Returns the number of existing repetitions of ");
source.Append(indexName);
source.Append(" \r\n");
source.Append("\t */ \r\n");
source.Append("\tpublic int ");
source.Append(getterName);
source.Append("RepetitionsUsed { \r\n");
source.Append("get{\r\n");
source.Append("\t int reps = -1; \r\n");
source.Append("\t try { \r\n");
source.Append("\t reps = this.GetAll(\"");
source.Append(getterName);
source.Append("\").Length; \r\n");
source.Append("\t } catch (HL7Exception e) { \r\n");
source.Append(
"\t string message = \"Unexpected error accessing data - this is probably a bug in the source code generator.\"; \r\n");
source.Append("\t HapiLogFactory.GetHapiLog(GetType()).Error(message, e); \r\n");
source.Append("\t throw new System.Exception(message);\r\n");
source.Append("\t } \r\n");
source.Append("\t return reps; \r\n");
source.Append("\t}\r\n");
source.Append("\t} \r\n\r\n");
// make enumerator
source.Append("\t/** \r\n");
source.Append("\t * Enumerate over the " + def.Name + " results \r\n");
source.Append("\t */ \r\n");
source.Append("\tpublic IEnumerable<" + def.Name + "> " + getterName + "s \r\n");
source.Append("\t{ \r\n");
source.Append("\t\tget\r\n");
source.Append("\t\t{\r\n");
source.Append("\t\t\tfor (int rep = 0; rep < " + getterName + "RepetitionsUsed; rep++)\r\n");
source.Append("\t\t\t{\r\n");
source.Append("\t\t\t\tyield return (" + def.Name + ")this.GetStructure(\"" + getterName + "\", rep);\r\n");
source.Append("\t\t\t}\r\n");
source.Append("\t\t}\r\n");
source.Append("\t}\r\n\r\n");
// make Add function
source.Append("\t///<summary>\r\n");
source.Append("\t///Adds a new " + def.Name + "\r\n");
source.Append("\t///</summary>\r\n");
source.Append("\tpublic " + def.Name + " Add" + getterName + "()\r\n");
source.Append("\t{\r\n");
source.Append("\t\treturn this.AddStructure(\"" + getterName + "\") as " + def.Name + ";\r\n");
source.Append("\t}\r\n");
source.Append("\r\n");
// make Remove function
source.Append("\t///<summary>\r\n");
source.Append("\t///Removes the given " + def.Name + "\r\n");
source.Append("\t///</summary>\r\n");
source.Append("\tpublic void Remove" + getterName + "(" + def.Name + " toRemove)\r\n");
source.Append("\t{\r\n");
source.Append("\t\tthis.RemoveStructure(\"" + getterName + "\", toRemove);\r\n");
source.Append("\t}\r\n");
source.Append("\r\n");
// make Remove At function
source.Append("\t///<summary>\r\n");
source.Append("\t///Removes the " + def.Name + " at the given index\r\n");
source.Append("\t///</summary>\r\n");
source.Append("\tpublic void Remove" + getterName + "At(int index)\r\n");
source.Append("\t{\r\n");
source.Append("\t\tthis.RemoveRepetition(\"" + getterName + "\", index);\r\n");
source.Append("\t}\r\n");
source.Append("\r\n");
}
return(source.ToString());
}
/// <summary> <p>Given a list of structures defining the deep content of a group (as provided in
/// the normative database, some being pairs of optionality and repetition markers
/// and segments nested within) returns a GroupDef including a short list of the shallow contents of the
/// group (including segments and groups that are immediate children).</p>
/// <p>For example given MSH [PID PV1] {[ERR NTE]}, short list would be something like
/// MSH PID_GROUP ERR_GROUP (with PID_GROUP marked as optional and ERR_GROUP marked as
/// optional and repeating).</p>
/// <p>This method calls writeGroup(...) where necessary in order to create source code for
/// any nested groups before returning corresponding GroupDefs.</p>
/// </summary>
public static GroupDef getGroupDef(IStructureDef[] structures, String groupName, String baseDirectory, String version,
String message)
{
GroupDef ret = null;
bool required = true;
bool repeating = false;
bool rep_opt = false;
int len = structures.Length;
IStructureDef[] shortList = new IStructureDef[len]; //place to put final list of groups/seg's w/o opt & rep markers
int currShortListPos = 0;
int currLongListPos = 0;
try
{
//check for rep and opt (see if start & end elements are [] or {} AND they are each others' pair) ...
//System.out.println(len + " " + structures[0].getName() +structures[1].getName()+ ".." +structures[len-2].getName() + structures[len-1].getName()+ " " + message);
if (optMarkers(structures[0].Name, structures[len - 1].Name) && (findGroupEnd(structures, 0) == len - 1))
{
required = false;
}
if (repMarkers(structures[0].Name, structures[len - 1].Name) && (findGroupEnd(structures, 0) == len - 1))
{
repeating = true;
}
if (repoptMarkers(structures[0].Name, structures[len - 1].Name) && (findGroupEnd(structures, 0) == len - 1))
{
rep_opt = true;
}
if (repeating || !required)
{
if (optMarkers(structures[1].Name, structures[len - 2].Name) && (findGroupEnd(structures, 1) == len - 2))
{
required = false;
}
if (repMarkers(structures[1].Name, structures[len - 2].Name) && (findGroupEnd(structures, 1) == len - 2))
{
repeating = true;
}
}
//loop through, recurse nested groups, and build short list of structures for this group
int skip = 0;
if (!required)
{
skip++;
}
if (repeating)
{
skip++;
}
if (rep_opt)
{
skip++;
}
currLongListPos = skip;
while (currLongListPos < len - skip)
{
String currSegName = structures[currLongListPos].Name;
if (currSegName.Equals("[") || currSegName.Equals("{") || currSegName.Equals("[{"))
{
//this is the opening of a new group ...
String name = ((SegmentDef)structures[currLongListPos]).GroupName;
int endOfNewGroup = findGroupEnd(structures, currLongListPos);
IStructureDef[] newGroupStructures = new IStructureDef[endOfNewGroup - currLongListPos + 1];
Array.Copy(structures, currLongListPos, newGroupStructures, 0, newGroupStructures.Length);
shortList[currShortListPos] = writeGroup(newGroupStructures, name, baseDirectory, version, message);
currLongListPos = endOfNewGroup + 1;
}
else
{
//copy verbatim into short list ...
shortList[currShortListPos] = structures[currLongListPos];
currLongListPos++;
}
currShortListPos++;
}
}
catch (ArgumentException e)
{
throw new HL7Exception("Problem creating nested group: " + e.GetType().FullName + ": " + e.Message,
ErrorCode.APPLICATION_INTERNAL_ERROR);
}
if (rep_opt)
{
ret = new GroupDef(message, groupName, false, true, "a Group object");
}
else
{
ret = new GroupDef(message, groupName, required, repeating, "a Group object");
}
IStructureDef[] finalList = new IStructureDef[currShortListPos]; //note: incremented after last assignment
Array.Copy(shortList, 0, finalList, 0, currShortListPos);
for (int i = 0; i < finalList.Length; i++)
{
ret.addStructure(finalList[i]);
}
return(ret);
}
/// <summary> <p>Given a list of structures defining the deep content of a group (as provided in
/// the normative database, some being pairs of optionality and repetition markers
/// and segments nested within) returns a GroupDef including a short list of the shallow contents of the
/// group (including segments and groups that are immediate children).</p>
/// <p>For example given MSH [PID PV1] {[ERR NTE]}, short list would be something like
/// MSH PID_GROUP ERR_GROUP (with PID_GROUP marked as optional and ERR_GROUP marked as
/// optional and repeating).</p>
/// <p>This method calls writeGroup(...) where necessary in order to create source code for
/// any nested groups before returning corresponding GroupDefs.</p>
/// </summary>
public static GroupDef GetGroupDef(
IStructureDef[] structures,
string groupName,
string baseDirectory,
string version,
string message)
{
GroupDef ret;
var required = true;
var repeating = false;
var rep_opt = false;
var len = structures.Length;
var shortList = new IStructureDef[len]; // place to put final list of groups/segments w/o opt & rep markers
var currShortListPos = 0;
try
{
// check for rep and opt (see if start & end elements are [] or {} AND they are each others' pair) ...
// System.out.println(len + " " + structures[0].getName() +structures[1].getName()+ ".." +structures[len-2].getName() + structures[len-1].getName()+ " " + message);
if (OptMarkers(structures[0].Name, structures[len - 1].Name) && (FindGroupEnd(structures, 0) == len - 1))
{
required = false;
}
if (RepMarkers(structures[0].Name, structures[len - 1].Name) && (FindGroupEnd(structures, 0) == len - 1))
{
repeating = true;
}
if (RepoptMarkers(structures[0].Name, structures[len - 1].Name) && (FindGroupEnd(structures, 0) == len - 1))
{
rep_opt = true;
}
if (repeating || !required)
{
if (OptMarkers(structures[1].Name, structures[len - 2].Name) && (FindGroupEnd(structures, 1) == len - 2))
{
required = false;
}
if (RepMarkers(structures[1].Name, structures[len - 2].Name) && (FindGroupEnd(structures, 1) == len - 2))
{
repeating = true;
}
}
// loop through, recurse nested groups, and build short list of structures for this group
var skip = 0;
if (!required)
{
skip++;
}
if (repeating)
{
skip++;
}
if (rep_opt)
{
skip++;
}
var currLongListPos = skip;
while (currLongListPos < len - skip)
{
var currSegName = structures[currLongListPos].Name;
if (currSegName.Equals("[") || currSegName.Equals("{") || currSegName.Equals("[{"))
{
// this is the opening of a new group ...
var name = ((SegmentDef)structures[currLongListPos]).GroupName;
// Fix mistakes in DB (ported from hapi)
// Fix github issue https://github.com/nHapiNET/nHapi/issues/298
if (name is not null)
{
if (groupName == "OBSERVATION_REQUEST" && message == "ORL_O34" && name == "SPECIMEN" && version == "2.5.1")
{
name = "OBSERVATION_REQUEST_SPECIMEN";
}
}
var endOfNewGroup = FindGroupEnd(structures, currLongListPos);
var newGroupStructures = new IStructureDef[endOfNewGroup - currLongListPos + 1];
Array.Copy(structures, currLongListPos, newGroupStructures, 0, newGroupStructures.Length);
shortList[currShortListPos] = WriteGroup(newGroupStructures, name, baseDirectory, version, message);
currLongListPos = endOfNewGroup + 1;
}
else
{
// copy verbatim into short list ...
shortList[currShortListPos] = structures[currLongListPos];
currLongListPos++;
}
currShortListPos++;
}
}
catch (ArgumentException e)
{
throw new HL7Exception(
"Problem creating nested group: " + e.GetType().FullName + ": " + e.Message,
ErrorCode.APPLICATION_INTERNAL_ERROR);
}
if (rep_opt)
{
ret = new GroupDef(message, groupName, false, true, "a Group object");
}
else
{
ret = new GroupDef(message, groupName, required, repeating, "a Group object");
}
var finalList = new IStructureDef[currShortListPos]; // note: incremented after last assignment
Array.Copy(shortList, 0, finalList, 0, currShortListPos);
foreach (var structureDef in finalList)
{
// Fix mistakes in the DB (ported from hapi)
if (structureDef.UnqualifiedName == "ED")
{
continue;
}
// Fix github issue https://github.com/nHapiNET/nHapi/issues/298
if (ret.UnqualifiedName == "OBSERVATION_REQUEST" && message == "ORL_O34" && structureDef.UnqualifiedName == "SPECIMEN" && version == "2.5.1")
{
((GroupDef)structureDef).GroupName = "OBSERVATION_REQUEST_SPECIMEN";
Log.Info($"Forcing name to {((GroupDef)structureDef).GroupName}");
}
ret.AddStructure(structureDef);
}
return(ret);
}