// generic reader: reads the next TypeInfo object from stream and returns it /// <exception cref="System.IO.IOException"/> private FieldTypeInfo GenericReadTypeInfo(RecordInput rin, string tag) { string fieldName = rin.ReadString(tag); TypeID id = GenericReadTypeID(rin, tag); return(new FieldTypeInfo(fieldName, id)); }
/// <summary>Two base typeIDs are equal if they refer to the same type</summary> public override bool Equals(object o) { if (this == o) { return(true); } if (o == null) { return(false); } if (this.GetType() != o.GetType()) { return(false); } TypeID oTypeID = (TypeID)o; return(this.typeVal == oTypeID.typeVal); }
// generic reader: reads the next TypeID object from stream and returns it /// <exception cref="System.IO.IOException"/> private TypeID GenericReadTypeID(RecordInput rin, string tag) { byte typeVal = rin.ReadByte(tag); switch (typeVal) { case TypeID.RIOType.Bool: { return(TypeID.BoolTypeID); } case TypeID.RIOType.Buffer: { return(TypeID.BufferTypeID); } case TypeID.RIOType.Byte: { return(TypeID.ByteTypeID); } case TypeID.RIOType.Double: { return(TypeID.DoubleTypeID); } case TypeID.RIOType.Float: { return(TypeID.FloatTypeID); } case TypeID.RIOType.Int: { return(TypeID.IntTypeID); } case TypeID.RIOType.Long: { return(TypeID.LongTypeID); } case TypeID.RIOType.Map: { TypeID tIDKey = GenericReadTypeID(rin, tag); TypeID tIDValue = GenericReadTypeID(rin, tag); return(new MapTypeID(tIDKey, tIDValue)); } case TypeID.RIOType.String: { return(TypeID.StringTypeID); } case TypeID.RIOType.Struct: { Org.Apache.Hadoop.Record.Meta.StructTypeID stID = new Org.Apache.Hadoop.Record.Meta.StructTypeID (); int numElems = rin.ReadInt(tag); for (int i = 0; i < numElems; i++) { stID.Add(GenericReadTypeInfo(rin, tag)); } return(stID); } case TypeID.RIOType.Vector: { TypeID tID = GenericReadTypeID(rin, tag); return(new VectorTypeID(tID)); } default: { // shouldn't be here throw new IOException("Unknown type read"); } } }
/// <summary>Construct a FiledTypeInfo with the given field name and the type</summary> internal FieldTypeInfo(string fieldID, TypeID typeID) { this.fieldID = fieldID; this.typeID = typeID; }
/// <summary>read/skip bytes from stream based on a type</summary> /// <exception cref="System.IO.IOException"/> public static void Skip(RecordInput rin, string tag, TypeID typeID) { switch (typeID.typeVal) { case TypeID.RIOType.Bool: { rin.ReadBool(tag); break; } case TypeID.RIOType.Buffer: { rin.ReadBuffer(tag); break; } case TypeID.RIOType.Byte: { rin.ReadByte(tag); break; } case TypeID.RIOType.Double: { rin.ReadDouble(tag); break; } case TypeID.RIOType.Float: { rin.ReadFloat(tag); break; } case TypeID.RIOType.Int: { rin.ReadInt(tag); break; } case TypeID.RIOType.Long: { rin.ReadLong(tag); break; } case TypeID.RIOType.Map: { Index midx1 = rin.StartMap(tag); MapTypeID mtID = (MapTypeID)typeID; for (; !midx1.Done(); midx1.Incr()) { Skip(rin, tag, mtID.GetKeyTypeID()); Skip(rin, tag, mtID.GetValueTypeID()); } rin.EndMap(tag); break; } case TypeID.RIOType.String: { rin.ReadString(tag); break; } case TypeID.RIOType.Struct: { rin.StartRecord(tag); // read past each field in the struct StructTypeID stID = (StructTypeID)typeID; IEnumerator <FieldTypeInfo> it = stID.GetFieldTypeInfos().GetEnumerator(); while (it.HasNext()) { FieldTypeInfo tInfo = it.Next(); Skip(rin, tag, tInfo.GetTypeID()); } rin.EndRecord(tag); break; } case TypeID.RIOType.Vector: { Index vidx1 = rin.StartVector(tag); VectorTypeID vtID = (VectorTypeID)typeID; for (; !vidx1.Done(); vidx1.Incr()) { Skip(rin, tag, vtID.GetElementTypeID()); } rin.EndVector(tag); break; } default: { // shouldn't be here throw new IOException("Unknown typeID when skipping bytes"); } } }
/// <summary>Add a field.</summary> /// <param name="fieldName">Name of the field</param> /// <param name="tid">Type ID of the field</param> public virtual void AddField(string fieldName, TypeID tid) { sTid.GetFieldTypeInfos().AddItem(new FieldTypeInfo(fieldName, tid)); }
public VectorTypeID(TypeID typeIDElement) : base(TypeID.RIOType.Vector) { this.typeIDElement = typeIDElement; }
public MapTypeID(TypeID typeIDKey, TypeID typeIDValue) : base(TypeID.RIOType.Map) { this.typeIDKey = typeIDKey; this.typeIDValue = typeIDValue; }