Ejemplo n.º 1
0
        /// <summary> Returns source code for the contructor for this Group class. </summary>
        public static System.String makeConstructor(GroupDef group, System.String version)
        {
            //UPGRADE_ISSUE: Method 'java.lang.System.getProperty' was not converted. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1000_javalangSystem'"
            bool useFactory = ca.uhn.Properties.Settings.Default.useFactory;

            System.Text.StringBuilder source = new System.Text.StringBuilder();

            source.Append("\t/** \r\n");
            source.Append("\t * Creates a new ");
            source.Append(group.Name);
            source.Append(" Group.\r\n");
            source.Append("\t */\r\n");
            source.Append("\tpublic ");
            source.Append(group.Name);
            source.Append("(Group parent, ModelClassFactory factory) : base(parent, factory){\r\n");
            source.Append("\t   try {\r\n");
            StructureDef[] structs    = group.Structures;
            int            numStructs = structs.Length;

            for (int i = 0; i < numStructs; i++)
            {
                StructureDef 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());
        }
Ejemplo n.º 2
0
        /// <summary> Returns source code for a JavaDoc snippet listing the contents of a Group
        /// or Message.
        /// </summary>
        public static System.String makeElementsDoc(StructureDef[] structures)
        {
            System.Text.StringBuilder elements = new System.Text.StringBuilder();
            for (int i = 0; i < structures.Length; i++)
            {
                StructureDef def = structures[i];
                elements.Append(" * ");
                elements.Append(i);
                elements.Append(": ");
                elements.Append(def.Name);
                elements.Append(" (");
                elements.Append(def.Description);
                elements.Append(") <b>");
                if (!def.Required)
                {
                    elements.Append("optional ");
                }
                if (def.Repeating)
                {
                    elements.Append("repeating");
                }
                elements.Append("</b><br>\r\n");
            }

            return(elements.ToString());
        }
Ejemplo n.º 3
0
        /// <summary> Returns source code for an accessor method for a particular Structure. </summary>
        public static System.String makeAccessor(GroupDef group, int structure)
        {
            System.Text.StringBuilder source = new System.Text.StringBuilder();

            StructureDef def = group.Structures[structure];

            System.String name       = def.Name;
            System.String indexName  = group.getIndexName(name);
            System.String getterName = indexName;
            if (def is GroupDef)
            {
                System.String unqualifiedName = ((GroupDef)def).UnqualifiedName;
                getterName = group.getIndexName(unqualifiedName);
            }

            //make accessor for first (or only) rep ...
            source.Append("\t/**\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 */\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.get_Renamed(\"");
            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/**\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 */\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.get_Renamed(\"");
                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("Reps { \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");
            }

            return(source.ToString());
        }
Ejemplo n.º 4
0
 /// <summary> Adds an element (segment or group) to this group.  </summary>
 public virtual void  addStructure(StructureDef s)
 {
     elements.Add(s);
 }
Ejemplo n.º 5
0
        /// <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(StructureDef[] structures, System.String groupName, System.String baseDirectory, System.String version, System.String message)
        {
            GroupDef ret       = null;
            bool     required  = true;
            bool     repeating = false;
            bool     rep_opt   = false;

            int len = structures.Length;

            StructureDef[] shortList        = new StructureDef[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)
                {
                    System.String currSegName = structures[currLongListPos].Name;
                    if (currSegName.Equals("[") || currSegName.Equals("{") || currSegName.Equals("[{"))
                    {
                        //this is the opening of a new group ...
                        System.String  name               = ((SegmentDef)structures[currLongListPos]).GroupName;
                        int            endOfNewGroup      = findGroupEnd(structures, currLongListPos);
                        StructureDef[] newGroupStructures = new StructureDef[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 (System.ArgumentException e)
            {
                //UPGRADE_TODO: The equivalent in .NET for method 'java.lang.Class.getName' may return a different value. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1043'"
                //UPGRADE_TODO: The equivalent in .NET for method 'java.lang.Throwable.getMessage' may return a different value. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1043'"
                throw new HL7Exception("Problem creating nested group: " + e.GetType().FullName + ": " + e.Message, HL7Exception.APPLICATION_INTERNAL_ERROR);
            }

            ret = new GroupDef(message, groupName, required, repeating, "a Group object");
            StructureDef[] finalList = new StructureDef[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);
        }
Ejemplo n.º 6
0
        /// <summary> Returns header material for the source code of a Message class (including
        /// package, imports, JavaDoc, and class declaration).
        /// </summary>
        public static System.String makePreamble(StructureDef[] contents, System.String message, System.String chapter, System.String version)
        {
            System.Text.StringBuilder preamble = new System.Text.StringBuilder();
            preamble.Append("using System;\r\n");
            preamble.Append("using ca.uhn.log;\r\n");
            preamble.Append("using ");
            preamble.Append(SourceGenerator.getVersionPackageName(version));
            preamble.Append("group;\r\n");
            preamble.Append("using ");
            preamble.Append(SourceGenerator.getVersionPackageName(version));
            preamble.Append("segment;\r\n");
            preamble.Append("using ca.uhn.hl7v2;\r\n");
            preamble.Append("using ca.uhn.hl7v2.parser;\r\n");
            preamble.Append("using ca.uhn.hl7v2.model;\r\n\r\n");
            preamble.Append("/**\r\n");
            preamble.Append(" * <p>Represents a ");
            preamble.Append(message);
            preamble.Append(" message structure (see chapter ");
            preamble.Append(chapter);
            preamble.Append("). This structure contains the \r\n");
            preamble.Append(" * following elements: </p>\r\n");
            preamble.Append(GroupGenerator.makeElementsDoc(contents));
            preamble.Append(" */\r\n");
            preamble.Append("namespace ");
            preamble.Append(SourceGenerator.getVersionPackageName(version));
            preamble.Append("message\r\n\r\n");
            preamble.Append("{\r\n");
            preamble.Append("[Serializable]\r\n");
            preamble.Append("public class ");
            preamble.Append(message);
            preamble.Append(" : AbstractMessage ");

            //implement interface from model.control package if required
            /*Class correspondingControlInterface = Control.getInterfaceImplementedBy(message);
            if (correspondingControlInterface != null) {
            preamble.append("implements ");
            preamble.append(correspondingControlInterface.getName());
            }*/

            preamble.Append(" {\r\n\r\n");

            return preamble.ToString();
        }
Ejemplo n.º 7
0
 /// <summary> Adds an element (segment or group) to this group.  </summary>
 public virtual void addStructure(StructureDef s)
 {
     elements.Add(s);
 }
Ejemplo n.º 8
0
        /// <summary> Returns source code for the contructor for this Message class.</summary>
        public static System.String makeConstructor(StructureDef[] structs, System.String messageName, System.String version)
        {
            //UPGRADE_ISSUE: Method 'java.lang.System.getProperty' was not converted. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1000_javalangSystem'"
            bool useFactory = ca.uhn.Properties.Settings.Default.useFactory;

            System.Text.StringBuilder source = new System.Text.StringBuilder();

            source.Append("\t/** \r\n");
            source.Append("\t * Creates a new ");
            source.Append(messageName);
            source.Append(" Group with custom ModelClassFactory.\r\n");
            source.Append("\t */\r\n");
            source.Append("\tpublic ");
            source.Append(messageName);
            source.Append("(ModelClassFactory factory) : base(factory){\r\n");
            source.Append("\t   init(factory);\r\n");
            source.Append("\t}\r\n\r\n");
            source.Append("\t/**\r\n");
            source.Append("\t * Creates a new ");
            source.Append(messageName);
            source.Append(" Group with DefaultModelClassFactory. \r\n");
            source.Append("\t */ \r\n");
            source.Append("\tpublic ");
            source.Append(messageName);
            source.Append("() : base(new DefaultModelClassFactory()) { \r\n");
            source.Append("\t   init(new DefaultModelClassFactory());\r\n");
            source.Append("\t}\r\n\r\n");
            source.Append("\tprivate void init(ModelClassFactory factory) {\r\n");
            source.Append("\t   try {\r\n");
            int numStructs = structs.Length;
            for (int i = 0; i < numStructs; i++)
            {
                StructureDef def = structs[i];
                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(messageName);
            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();
        }
Ejemplo n.º 9
0
        /// <summary> Given a list of structures and the position of a SegmentDef that 
        /// indicates the start of a group (ie "{" or "["), returns the position
        /// of the corresponding end of the group.  Nested group markers are ignored.  
        /// </summary>
        /// <throws>  IllegalArgumentException if groupStart is out of range or does not  </throws>
        /// <summary>      point to a group opening marker. 
        /// </summary>
        /// <throws>  HL7Exception if the end of the group is not found or if other pairs  </throws>
        /// <summary>      are not properly nested inside this one.  
        /// </summary>
        public static int findGroupEnd(StructureDef[] structures, int groupStart)
        {
            //  {} is rep; [] is optionality
            System.String endMarker = null;
            try
            {
                System.String startMarker = structures[groupStart].Name;
                if (startMarker.Equals("["))
                {
                    endMarker = "]";
                }
                else if (startMarker.Equals("{"))
                {
                    endMarker = "}";
                }
                else if (startMarker.Equals("[{"))
                {
                    endMarker = "}]";
                }
                else
                {
                    log.error("Problem starting at " + groupStart);
                    for (int i = 0; i < structures.Length; i++)
                    {
                        log.error("Structure " + i + ": " + structures[i].Name);
                    }
                    throw new System.ArgumentException("The segment " + startMarker + " does not begin a group - must be [ or {");
                }
            }
            catch (System.IndexOutOfRangeException)
            {
                throw new System.ArgumentException("The given start location is out of bounds");
            }

            //loop, increment and decrement opening and closing markers until we get back to 0
            System.String segName = null;
            int offset = 0;
            try
            {
                int nestedInside = 1;
                while (nestedInside > 0)
                {
                    offset++;
                    segName = structures[groupStart + offset].Name;
                    if (segName.Equals("{") || segName.Equals("[") || segName.Equals("[{"))
                    {
                        nestedInside++;
                    }
                    else if (segName.Equals("}") || segName.Equals("]") || segName.Equals("}]"))
                    {
                        nestedInside--;
                    }
                }
            }
            catch (System.IndexOutOfRangeException)
            {
                throw new HL7Exception("Couldn't find end of group", HL7Exception.APPLICATION_INTERNAL_ERROR);
            }
            if (!endMarker.Equals(segName))
                throw new HL7Exception("Group markers are not nested properly", HL7Exception.APPLICATION_INTERNAL_ERROR);
            return groupStart + offset;
        }
Ejemplo n.º 10
0
        /// <summary> <p>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.</p>  
        /// <p>The structures list may contain [] and {} pairs representing 
        /// nested groups and their optionality and repeastability.  In these cases
        /// this method is called recursively.</p>
        /// <p>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.</p>  
        /// </summary>
        /// <param name="structures">a list of the structures that comprise this group - must 
        /// be at least 2 long
        /// </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>      properly nested.  
        /// </summary>
        public static GroupDef writeGroup(StructureDef[] structures, System.String groupName, System.String baseDirectory, System.String version, System.String message)
        {
            //make base directory
            if (!(baseDirectory.EndsWith("\\") || baseDirectory.EndsWith("/")))
            {
                baseDirectory = baseDirectory + "/";
            }
            System.IO.FileInfo targetDir = SourceGenerator.makeDirectory(baseDirectory + SourceGenerator.getVersionPackageDirectory(version) + "group");

            GroupDef group = getGroupDef(structures, groupName, baseDirectory, version, message);
            //UPGRADE_WARNING: At least one expression was used more than once in the target code. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1181'"
            //UPGRADE_TODO: Constructor 'java.io.FileWriter.FileWriter' was converted to 'System.IO.StreamWriter' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioFileWriterFileWriter_javalangString_boolean'"
            //UPGRADE_TODO: Class 'java.io.FileWriter' was converted to 'System.IO.StreamWriter' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioFileWriter'"
            using(System.IO.StreamWriter out_Renamed = new System.IO.StreamWriter(targetDir.FullName + "/" + group.Name + ".cs"))
            {
                out_Renamed.Write(makePreamble(group, version));
                out_Renamed.Write(makeConstructor(group, version));

                StructureDef[] 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;
        }
Ejemplo n.º 11
0
        /// <summary> Returns source code for a JavaDoc snippet listing the contents of a Group 
        /// or Message.  
        /// </summary>
        public static System.String makeElementsDoc(StructureDef[] structures)
        {
            System.Text.StringBuilder elements = new System.Text.StringBuilder();
            for (int i = 0; i < structures.Length; i++)
            {
                StructureDef def = structures[i];
                elements.Append(" * ");
                elements.Append(i);
                elements.Append(": ");
                elements.Append(def.Name);
                elements.Append(" (");
                elements.Append(def.Description);
                elements.Append(") <b>");
                if (!def.Required)
                    elements.Append("optional ");
                if (def.Repeating)
                    elements.Append("repeating");
                elements.Append("</b><br>\r\n");
            }

            return elements.ToString();
        }
Ejemplo n.º 12
0
        /// <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(StructureDef[] structures, System.String groupName, System.String baseDirectory, System.String version, System.String message)
        {
            GroupDef ret = null;
            bool required = true;
            bool repeating = false;
            bool rep_opt = false;

            int len = structures.Length;
            StructureDef[] shortList = new StructureDef[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)
                {
                    System.String currSegName = structures[currLongListPos].Name;
                    if (currSegName.Equals("[") || currSegName.Equals("{") || currSegName.Equals("[{"))
                    {
                        //this is the opening of a new group ...
                        System.String name = ((SegmentDef) structures[currLongListPos]).GroupName;
                        int endOfNewGroup = findGroupEnd(structures, currLongListPos);
                        StructureDef[] newGroupStructures = new StructureDef[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 (System.ArgumentException e)
            {
                //UPGRADE_TODO: The equivalent in .NET for method 'java.lang.Class.getName' may return a different value. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1043'"
                //UPGRADE_TODO: The equivalent in .NET for method 'java.lang.Throwable.getMessage' may return a different value. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1043'"
                throw new HL7Exception("Problem creating nested group: " + e.GetType().FullName + ": " + e.Message, HL7Exception.APPLICATION_INTERNAL_ERROR);
            }

            ret = new GroupDef(message, groupName, required, repeating, "a Group object");
            StructureDef[] finalList = new StructureDef[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;
        }