public bool OpenXyz(string zipFileName)
{
if (File.Exists(zipFileName) == false)
{
return(false);
}
try
{
m_XyzFileStream = File.Open(zipFileName, FileMode.Open, FileAccess.ReadWrite, FileShare.Read);
}
catch
{
if (m_XyzFileStream != null)
{
m_XyzFileStream.Close();
m_XyzFileStream = null;
}
}
if (m_XyzFileStream == null)
{
return(false);
}
m_XyzHeadReader = XyzHeadReader.ReadXyzHead(m_XyzFileStream);
if (m_XyzHeadReader == null)
{
m_XyzFileStream.Close();
m_XyzFileStream = null;
return(false);
}
return(true);
}
public void Close()
{
if (m_XyzFileStream == null)
{
return;
}
m_XyzFileStream.Flush();
m_XyzFileStream.Close();
m_XyzFileStream = null;
m_XyzHeadReader = null;
}
public static bool WriteXyzHead( System.IO.Stream stream, XyzHeadReader xyzHead )
{
switch ( xyzHead.Version )
{
case XyzHeadVersion.XyzHeadVer01:
return WriteXyzHeadVer01( stream, xyzHead );
default:
break;
}
return false;
}
public static bool WriteXyzHead(System.IO.Stream stream, XyzHeadReader xyzHead)
{
switch (xyzHead.Version)
{
case XyzHeadVersion.XyzHeadVer01:
return(WriteXyzHeadVer01(stream, xyzHead));
default:
break;
}
return(false);
}
private static bool WriteXyzHeadVer01(System.IO.Stream stream, XyzHeadReader xyzHead)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (xyzHead == null)
{
throw new ArgumentNullException("xyzHead");
}
byte[] byteULong = new byte[8];
// 00 ~ 03: 标识符号 : 是否是XYZ的标识(写入)
stream.Write(xyzHead.Tag, 0, xyzHead.Tag.Length);
// 03 ~ 04: XYZ文件版本号(写入)
stream.WriteByte((byte)xyzHead.Version);
// 04 ~ 05: XYZ文件内实体名称的加密方式 （ 0 为无加密, 1... 为其它加密方式 ）(写入)
stream.WriteByte((byte)xyzHead.EncryptType);
// 05 ~ 13: 主评论信息的文件偏移(写入)
xyzHead.CommentOffset.ToArrayInByte(ref byteULong, 0);
stream.Write(byteULong, 0, byteULong.Length);
// 13 ~ 21: 第一个XYZ文件内实体的文件偏移(写入)
xyzHead.FirstEntryOffset.ToArrayInByte(ref byteULong, 0);
stream.Write(byteULong, 0, byteULong.Length);
// XYZ文件内实体评论的信息(写入)
if (xyzHead.CommentReader == null)
{
if (xyzHead.CommentOffset > 0)
{
throw new ArgumentException("xyzHead.CommentReader == null && xyzHead.CommentOffset > 0 error!", "xyzComment.CommentReader & xyzComment.CommentOffset");
}
else
{
return(true);
}
}
stream.Seek((long)xyzHead.CommentOffset, SeekOrigin.Begin);
XyzCommentWriter.WriteComment(stream, xyzHead.CommentReader);
return(true);
}
private static bool WriteXyzHeadVer01( System.IO.Stream stream, XyzHeadReader xyzHead )
{
if ( stream == null )
throw new ArgumentNullException( "stream" );
if ( xyzHead == null )
throw new ArgumentNullException( "xyzHead" );
byte[] byteULong = new byte[8];
// 00 ~ 03: 标识符号 : 是否是XYZ的标识(写入)
stream.Write( xyzHead.Tag, 0, xyzHead.Tag.Length );
// 03 ~ 04: XYZ文件版本号(写入)
stream.WriteByte( (byte)xyzHead.Version );
// 04 ~ 05: XYZ文件内实体名称的加密方式 （ 0 为无加密, 1... 为其它加密方式 ）(写入)
stream.WriteByte( (byte)xyzHead.EncryptType );
// 05 ~ 13: 主评论信息的文件偏移(写入)
xyzHead.CommentOffset.ToArrayInByte( ref byteULong, 0 );
stream.Write( byteULong, 0, byteULong.Length );
// 13 ~ 21: 第一个XYZ文件内实体的文件偏移(写入)
xyzHead.FirstEntryOffset.ToArrayInByte( ref byteULong, 0 );
stream.Write( byteULong, 0, byteULong.Length );
// XYZ文件内实体评论的信息(写入)
if ( xyzHead.CommentReader == null )
{
if ( xyzHead.CommentOffset > 0 )
throw new ArgumentException( "xyzHead.CommentReader == null && xyzHead.CommentOffset > 0 error!", "xyzComment.CommentReader & xyzComment.CommentOffset" );
else
return true;
}
stream.Seek( (long)xyzHead.CommentOffset, SeekOrigin.Begin );
XyzCommentWriter.WriteComment( stream, xyzHead.CommentReader );
return true;
}
private static XyzHeadReader ReadXyzHeadVer01(System.IO.Stream stream)
{
XyzHeadReader xyzCommentReader = new XyzHeadReader();
xyzCommentReader.m_HeadTag = XyzHeadReader.XYZ_HEAD_TAG;
xyzCommentReader.m_HeadVersion = XyzHeadVersion.XyzHeadVer01;
// 04 ~ 05: XYZ文件内实体名称的加密方式 （ 0 为无加密, 1... 为其它加密方式 ）(读取)
int iEncryptType = stream.ReadByte();
if (iEncryptType > (int)XyzHeadEncrypt.MaxValue)
{
return(null);
}
else
{
xyzCommentReader.m_EncryptType = (XyzHeadEncrypt)iEncryptType;
}
switch (xyzCommentReader.EncryptType)
{
case XyzHeadEncrypt.None:
break;
case XyzHeadEncrypt.Aes:
break;
case XyzHeadEncrypt.Des:
break;
case XyzHeadEncrypt.RC2:
break;
case XyzHeadEncrypt.Rijndael:
break;
case XyzHeadEncrypt.TripleDes:
break;
default:
return(null);
}
byte[] byteULong = new byte[8];
// 05 ~ 13: 主评论信息的文件偏移(读取)
int iCount = stream.Read(byteULong, 0, byteULong.Length);
if (iCount != byteULong.Length)
{
return(null);
}
else
{
xyzCommentReader.m_CommentOffset = byteULong.ConvertToUInt64();
}
// 13 ~ 21: 第一个XYZ文件内实体的文件偏移(读取)
iCount = stream.Read(byteULong, 0, byteULong.Length);
if (iCount != byteULong.Length)
{
return(null);
}
else
{
xyzCommentReader.m_FirstEntryOffset = byteULong.ConvertToUInt64();
}
if (xyzCommentReader.CommentOffset == 0)
{
return(xyzCommentReader);
}
else if ((ulong)stream.Length < xyzCommentReader.CommentOffset)
{
return(null);
}
else
{
stream.Seek((long)xyzCommentReader.CommentOffset, System.IO.SeekOrigin.Begin);
// 13 ~ ..: 其它XYZ文件内实体或评论信息的数据(读取)
xyzCommentReader.m_CommentReader = XyzCommentReader.GetXyzComment(stream);
}
return(xyzCommentReader);
}
private static XyzHeadReader ReadXyzHeadVer01( System.IO.Stream stream )
{
XyzHeadReader xyzCommentReader = new XyzHeadReader();
xyzCommentReader.m_HeadTag = XyzHeadReader.XYZ_HEAD_TAG;
xyzCommentReader.m_HeadVersion = XyzHeadVersion.XyzHeadVer01;
// 04 ~ 05: XYZ文件内实体名称的加密方式 （ 0 为无加密, 1... 为其它加密方式 ）(读取)
int iEncryptType = stream.ReadByte();
if ( iEncryptType > (int)XyzHeadEncrypt.MaxValue )
return null;
else
xyzCommentReader.m_EncryptType = (XyzHeadEncrypt)iEncryptType;
switch ( xyzCommentReader.EncryptType )
{
case XyzHeadEncrypt.None:
break;
case XyzHeadEncrypt.Aes:
break;
case XyzHeadEncrypt.Des:
break;
case XyzHeadEncrypt.RC2:
break;
case XyzHeadEncrypt.Rijndael:
break;
case XyzHeadEncrypt.TripleDes:
break;
default:
return null;
}
byte[] byteULong = new byte[8];
// 05 ~ 13: 主评论信息的文件偏移(读取)
int iCount = stream.Read( byteULong, 0, byteULong.Length );
if ( iCount != byteULong.Length )
return null;
else
xyzCommentReader.m_CommentOffset = byteULong.ConvertToUInt64();
// 13 ~ 21: 第一个XYZ文件内实体的文件偏移(读取)
iCount = stream.Read( byteULong, 0, byteULong.Length );
if ( iCount != byteULong.Length )
return null;
else
xyzCommentReader.m_FirstEntryOffset = byteULong.ConvertToUInt64();
if ( xyzCommentReader.CommentOffset == 0 )
return xyzCommentReader;
else if ( (ulong)stream.Length < xyzCommentReader.CommentOffset )
return null;
else
{
stream.Seek( (long)xyzCommentReader.CommentOffset, System.IO.SeekOrigin.Begin );
// 13 ~ ..: 其它XYZ文件内实体或评论信息的数据(读取)
xyzCommentReader.m_CommentReader = XyzCommentReader.GetXyzComment( stream );
}
return xyzCommentReader;
}
