internal PersistentMapImpl(Storage storage, Type keyType, int initialSize)
: base(storage)
{
type = ClassDescriptor.getTypeCode(keyType);
keys = new IComparable[initialSize];
values = storage.CreateLink(initialSize);
}
internal void exportMultiFieldIndex(int oid, byte[] data)
{
Btree btree = new Btree(data, ObjectHeader.Sizeof);
storage.assignOid(btree, oid);
writer.Write(" <Perst.Impl.BtreeMultiFieldIndex id=\"" + oid + "\" unique=\"" + (btree.unique ? '1' : '0')
+ "\" class=");
int offs = exportString(data, Btree.Sizeof);
int nFields = Bytes.unpack4(data, offs);
offs += 4;
for (int i = 0; i < nFields; i++)
{
writer.Write(" field" + i + "=");
offs = exportString(data, offs);
}
writer.Write(">\n");
int nTypes = Bytes.unpack4(data, offs);
offs += 4;
compoundKeyTypes = new ClassDescriptor.FieldType[nTypes];
for (int i = 0; i < nTypes; i++)
{
compoundKeyTypes[i] = (ClassDescriptor.FieldType)Bytes.unpack4(data, offs);
offs += 4;
}
btree.export(this);
compoundKeyTypes = null;
writer.Write(" </Perst.Impl.BtreeMultiFieldIndex>\n");
}
private ThickFieldIndex(StorageImpl db, Type cls, string fieldName, KeyMember mbr)
: base(db, mbr.type)
#endif
{
this.mbr = mbr;
this.cls = cls;
this.fieldName = fieldName;
type = ClassDescriptor.convertToNotNullable(ClassDescriptor.getTypeCode(mbr.type));
}
public override void init(Type cls, ClassDescriptor.FieldType type, string[] fieldNames, bool unique, long autoincCount)
{
this.cls = cls;
this.unique = unique;
this.fieldName = fieldNames[0];
this.className = ClassDescriptor.getTypeName(cls);
this.autoincCount = autoincCount;
lookupField(fieldNames[0]);
this.type = checkType(mbrType);
}
public override void init(Type cls, ClassDescriptor.FieldType type, string[] fieldNames, bool unique, long autoincCount)
{
this.cls = cls;
this.unique = unique;
this.fieldNames = fieldNames;
this.className = ClassDescriptor.getTypeName(cls);
locateFields();
this.type = ClassDescriptor.FieldType.tpArrayOfByte;
types = new ClassDescriptor.FieldType[fieldNames.Length];
for (int i = 0; i < types.Length; i++)
{
Type mbrType = mbr[i] is FieldInfo ? ((FieldInfo)mbr[i]).FieldType : ((PropertyInfo)mbr[i]).PropertyType;
types[i] = checkType(mbrType);
}
}
internal void exportAssoc(int oid, byte[] body, int offs, int size, ClassDescriptor.FieldType type)
{
writer.Write(" <ref id=\"" + oid + "\"");
if ((exportedBitmap[oid >> 5] & (1 << (oid & 31))) == 0)
{
markedBitmap[oid >> 5] |= 1 << (oid & 31);
}
if (compoundKeyTypes != null)
{
exportCompoundKey(body, offs, size, type);
}
else
{
writer.Write(" key=\"");
exportKey(body, offs, size, type);
writer.Write("\"");
}
writer.Write("/>\n");
}
void exportCompoundKey(byte[] body, int offs, int size, ClassDescriptor.FieldType type)
{
Debug.Assert(type == ClassDescriptor.FieldType.tpArrayOfByte);
int end = offs + size;
for (int i = 0; i < compoundKeyTypes.Length; i++)
{
type = compoundKeyTypes[i];
if (type == ClassDescriptor.FieldType.tpArrayOfByte || type == ClassDescriptor.FieldType.tpString)
{
size = Bytes.unpack4(body, offs);
offs += 4;
}
writer.Write(" key" + i + "=\"");
offs = exportKey(body, offs, size, type);
writer.Write("\"");
}
Debug.Assert(offs == end);
}
internal void exportCompoundIndex(int oid, byte[] data, string name)
{
Btree btree = createBtree(oid, data);
name = exportIdentifier(name);
writer.Write(" <" + name + " id=\"" + oid + "\" unique=\"" + (btree.IsUnique ? '1' : '0') + "\"");
int offs = btree.HeaderSize;
int nTypes = Bytes.unpack4(data, offs);
offs += 4;
compoundKeyTypes = new ClassDescriptor.FieldType[nTypes];
for (int i = 0; i < nTypes; i++)
{
ClassDescriptor.FieldType type = (ClassDescriptor.FieldType)Bytes.unpack4(data, offs);
compoundKeyTypes[i] = type;
writer.Write(" type" + i + "=\"" + type + "\"");
offs += 4;
}
writer.Write(">\n");
btree.export(this);
compoundKeyTypes = null;
writer.Write(" </" + name + ">\n");
}
private int packKeyPart(ByteBuffer buf, int dst, ClassDescriptor.FieldType type, object val)
{
switch (type)
{
case ClassDescriptor.FieldType.tpBoolean:
dst = buf.packBool(dst, (bool)val);
break;
case ClassDescriptor.FieldType.tpByte:
dst = buf.packI1(dst, (byte)val);
break;
case ClassDescriptor.FieldType.tpSByte:
dst = buf.packI1(dst, (sbyte)val);
break;
case ClassDescriptor.FieldType.tpShort:
dst = buf.packI2(dst, (short)val);
break;
case ClassDescriptor.FieldType.tpUShort:
dst = buf.packI2(dst, (ushort)val);
break;
case ClassDescriptor.FieldType.tpChar:
dst = buf.packI2(dst, (char)val);
break;
case ClassDescriptor.FieldType.tpInt:
case ClassDescriptor.FieldType.tpOid:
case ClassDescriptor.FieldType.tpEnum:
dst = buf.packI4(dst, (int)val);
break;
case ClassDescriptor.FieldType.tpUInt:
dst = buf.packI4(dst, (int)(uint)val);
break;
case ClassDescriptor.FieldType.tpObject:
dst = buf.packI4(dst, val != null ? (int)((IPersistent)val).Oid : 0);
break;
case ClassDescriptor.FieldType.tpLong:
dst = buf.packI8(dst, (long)val);
break;
case ClassDescriptor.FieldType.tpULong:
dst = buf.packI8(dst, (long)(ulong)val);
break;
case ClassDescriptor.FieldType.tpDate:
dst = buf.packDate(dst, (DateTime)val);
break;
case ClassDescriptor.FieldType.tpFloat:
dst = buf.packF4(dst, (float)val);
break;
case ClassDescriptor.FieldType.tpDouble:
dst = buf.packF8(dst, (double)val);
break;
case ClassDescriptor.FieldType.tpDecimal:
dst = buf.packDecimal(dst, (decimal)val);
break;
case ClassDescriptor.FieldType.tpGuid:
dst = buf.packGuid(dst, (Guid)val);
break;
case ClassDescriptor.FieldType.tpString:
dst = buf.packString(dst, (string)val);
break;
case ClassDescriptor.FieldType.tpArrayOfByte:
buf.extend(dst + 4);
if (val != null)
{
byte[] arr = (byte[])val;
int len = arr.Length;
Bytes.pack4(buf.arr, dst, len);
dst += 4;
buf.extend(dst + len);
Array.Copy(arr, 0, buf.arr, dst, len);
dst += len;
}
else
{
Bytes.pack4(buf.arr, dst, 0);
dst += 4;
}
break;
default:
Debug.Assert(false, "Invalid type");
break;
}
return(dst);
}
internal void extract(Page pg, int offs, ClassDescriptor.FieldType type)
{
byte[] data = pg.data;
switch (type)
{
case ClassDescriptor.FieldType.tpBoolean:
key = new Key(data[offs] != 0);
break;
case ClassDescriptor.FieldType.tpSByte:
key = new Key((sbyte)data[offs]);
break;
case ClassDescriptor.FieldType.tpByte:
key = new Key(data[offs]);
break;
case ClassDescriptor.FieldType.tpShort:
key = new Key(Bytes.unpack2(data, offs));
break;
case ClassDescriptor.FieldType.tpUShort:
key = new Key((ushort)Bytes.unpack2(data, offs));
break;
case ClassDescriptor.FieldType.tpChar:
key = new Key((char)Bytes.unpack2(data, offs));
break;
case ClassDescriptor.FieldType.tpInt:
key = new Key(Bytes.unpack4(data, offs));
break;
case ClassDescriptor.FieldType.tpEnum:
case ClassDescriptor.FieldType.tpUInt:
case ClassDescriptor.FieldType.tpObject:
case ClassDescriptor.FieldType.tpOid:
key = new Key((uint)Bytes.unpack4(data, offs));
break;
case ClassDescriptor.FieldType.tpLong:
key = new Key(Bytes.unpack8(data, offs));
break;
case ClassDescriptor.FieldType.tpDate:
case ClassDescriptor.FieldType.tpULong:
key = new Key((ulong)Bytes.unpack8(data, offs));
break;
case ClassDescriptor.FieldType.tpFloat:
key = new Key(Bytes.unpackF4(data, offs));
break;
case ClassDescriptor.FieldType.tpDouble:
key = new Key(Bytes.unpackF8(data, offs));
break;
case ClassDescriptor.FieldType.tpGuid:
key = new Key(Bytes.unpackGuid(data, offs));
break;
case ClassDescriptor.FieldType.tpDecimal:
key = new Key(Bytes.unpackDecimal(data, offs));
break;
default:
Debug.Assert(false, "Invalid type");
break;
}
}
internal void createIndex(String indexType)
{
XMLScanner.Token tkn;
int oid = 0;
bool unique = false;
String className = null;
String fieldName = null;
String[] fieldNames = null;
long autoinc = 0;
String type = null;
ClassDescriptor.FieldType[] types = null;
while ((tkn = scanner.scan()) == XMLScanner.Token.IDENT)
{
string attrName = scanner.Identifier;
if (scanner.scan() != XMLScanner.Token.EQ || scanner.scan() != XMLScanner.Token.SCONST)
{
throwException("Attribute value expected");
}
string attrValue = scanner.String;
if (attrName.Equals("id"))
{
oid = mapId(parseInt(attrValue));
}
else if (attrName.Equals("unique"))
{
unique = parseInt(attrValue) != 0;
}
else if (attrName.Equals("class"))
{
className = attrValue;
}
else if (attrName.Equals("type"))
{
type = attrValue;
}
else if (attrName.Equals("autoinc"))
{
autoinc = parseInt(attrValue);
}
else if (attrName.Equals("field"))
{
fieldName = attrValue;
}
else if (attrName.StartsWith("field"))
{
int fieldNo = Int32.Parse(attrName.Substring(5));
if (fieldNames == null || fieldNames.Length <= fieldNo)
{
String[] newFieldNames = new String[fieldNo+1];
if (fieldNames != null)
{
Array.Copy(fieldNames, 0, newFieldNames, 0, fieldNames.Length);
}
fieldNames = newFieldNames;
}
fieldNames[fieldNo] = attrValue;
}
else if (attrName.StartsWith("type"))
{
int typeNo = Int32.Parse(attrName.Substring(4));
if (types == null || types.Length <= typeNo)
{
ClassDescriptor.FieldType[] newTypes = new ClassDescriptor.FieldType[typeNo+1];
if (types != null)
{
Array.Copy(types, 0, newTypes, 0, types.Length);
}
types = newTypes;
}
types[typeNo] = mapType(attrValue);
}
}
if (tkn != XMLScanner.Token.GT)
{
throwException("Unclosed element tag");
}
if (oid == 0)
{
throwException("ID is not specified or index");
}
#if USE_GENERICS
ClassDescriptor desc = storage.getClassDescriptor(findClassByName(indexType));
Btree btree = (Btree)desc.newInstance();
#else
Btree btree = null;
#endif
if (className != null)
{
Type cls = findClassByName(className);
if (fieldName != null)
{
#if USE_GENERICS
btree.init(cls, null, new string[]{fieldName}, unique, autoinc);
#else
btree = indexType.StartsWith("Perst.Impl.BtreeCaseInsensitiveFieldIndex")
? (Btree)new BtreeCaseInsensitiveFieldIndex(cls, fieldName, unique, autoinc)
: (Btree)new BtreeFieldIndex(cls, fieldName, unique, autoinc);
#endif
}
else if (fieldNames != null)
{
#if USE_GENERICS
btree.init(cls, null, fieldNames, unique, autoinc);
#else
btree = indexType.StartsWith("Perst.Impl.BtreeCaseInsensitiveMultiFieldIndex")
? (Btree)new BtreeCaseInsensitiveMultiFieldIndex(cls, fieldNames, unique)
: (Btree)new BtreeMultiFieldIndex(cls, fieldNames, unique);
#endif
}
else
{
throwException("Field name is not specified for field index");
}
}
else
{
if (types != null)
{
#if USE_GENERICS
btree.init(null, types, null, unique, autoinc);
#else
btree = new BtreeCompoundIndex(types, unique);
#endif
}
else if (type == null)
{
if (indexType.StartsWith("Perst.Impl.PersistentSet"))
{
#if !USE_GENERICS
btree = new PersistentSet(unique);
#endif
}
else
{
throwException("Key type is not specified for index");
}
}
else
{
if (indexType.StartsWith("org.garret.perst.impl.BitIndexImpl"))
{
#if !USE_GENERICS
btree = new BitIndexImpl();
#endif
}
else
{
#if USE_GENERICS
btree.init(null, new ClassDescriptor.FieldType[]{mapType(type)}, null, unique, autoinc);
#else
btree = new Btree(mapType(type), unique);
#endif
}
}
}
storage.AssignOid(btree, oid, false);
while ((tkn = scanner.scan()) == XMLScanner.Token.LT)
{
if (scanner.scan() != XMLScanner.Token.IDENT || !scanner.Identifier.Equals("ref"))
{
throwException("<ref> element expected");
}
XMLElement refElem = readElement("ref");
Key key;
if (fieldNames != null)
{
String[] values = new String[fieldNames.Length];
#if USE_GENERICS
types = btree.FieldTypes;
#else
types = ((BtreeMultiFieldIndex)btree).types;
#endif
for (int i = 0; i < values.Length; i++)
{
values[i] = getAttribute(refElem, "key"+i);
}
key = createCompoundKey(types, values);
}
else if (types != null)
{
String[] values = new String[fieldNames.Length];
for (int i = 0; i < values.Length; i++)
{
values[i] = getAttribute(refElem, "key"+i);
}
key = createCompoundKey(types, values);
}
else
{
key = createKey(btree.FieldType, getAttribute(refElem, "key"));
}
object obj = new PersistentStub(storage, mapId(getIntAttribute(refElem, "id")));
btree.insert(key, obj, false);
}
if (tkn != XMLScanner.Token.LTS
|| scanner.scan() != XMLScanner.Token.IDENT
|| !scanner.Identifier.Equals(indexType)
|| scanner.scan() != XMLScanner.Token.GT)
{
throwException("Element is not closed");
}
#if USE_GENERICS
ByteBuffer buf = new ByteBuffer();
buf.extend(ObjectHeader.Sizeof);
int size = storage.packObject(btree, desc, ObjectHeader.Sizeof, buf);
byte[] data = buf.arr;
ObjectHeader.setSize(data, 0, size);
ObjectHeader.setType(data, 0, desc.Oid);
#else
byte[] data = storage.packObject(btree, false);
int size = ObjectHeader.getSize(data, 0);
#endif
long pos = storage.allocate(size, 0);
storage.setPos(oid, pos | StorageImpl.dbModifiedFlag);
storage.pool.put(pos & ~ StorageImpl.dbFlagsMask, data, size);
}
int exportKey(byte[] body, int offs, int size, ClassDescriptor.FieldType type)
{
switch (type)
{
case ClassDescriptor.FieldType.tpBoolean:
writer.Write(body[offs++] != 0?"1":"0");
break;
case ClassDescriptor.FieldType.tpByte:
writer.Write(System.Convert.ToString((byte)body[offs++]));
break;
case ClassDescriptor.FieldType.tpSByte:
writer.Write(System.Convert.ToString((sbyte)body[offs++]));
break;
case ClassDescriptor.FieldType.tpChar:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpShort:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpUShort:
writer.Write(System.Convert.ToString((ushort)Bytes.unpack2(body, offs)));
offs += 2;
break;
case ClassDescriptor.FieldType.tpInt:
writer.Write(System.Convert.ToString(Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpUInt:
case ClassDescriptor.FieldType.tpObject:
case ClassDescriptor.FieldType.tpEnum:
writer.Write(System.Convert.ToString((uint)Bytes.unpack4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpLong:
writer.Write(System.Convert.ToString(Bytes.unpack8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpULong:
writer.Write(System.Convert.ToString((ulong)Bytes.unpack8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpFloat:
writer.Write(System.Convert.ToString(Bytes.unpackF4(body, offs)));
offs += 4;
break;
case ClassDescriptor.FieldType.tpDouble:
writer.Write(System.Convert.ToString(Bytes.unpackF8(body, offs)));
offs += 8;
break;
case ClassDescriptor.FieldType.tpGuid:
writer.Write(Bytes.unpackGuid(body, offs).ToString());
offs += 16;
break;
case ClassDescriptor.FieldType.tpDecimal:
writer.Write(Bytes.unpackDecimal(body, offs).ToString());
offs += 16;
break;
case ClassDescriptor.FieldType.tpString:
for (int i = 0; i < size; i++)
{
exportChar((char)Bytes.unpack2(body, offs));
offs += 2;
}
break;
case ClassDescriptor.FieldType.tpArrayOfByte:
for (int i = 0; i < size; i++)
{
byte b = body[offs++];
writer.Write(hexDigit[(b >> 4) & 0xF]);
writer.Write(hexDigit[b & 0xF]);
}
break;
case ClassDescriptor.FieldType.tpDate:
writer.Write(Bytes.unpackDate(body, offs).ToString());
offs += 8;
break;
default:
Debug.Assert(false, "Invalid type");
break;
}
return(offs);
}
