/**
* Walks through all recorded entries and adds the data available
* from the local file header.
*
* <p>Also records the offsets for the data to read from the
* entries.</p>
*/
private void resolveLocalFileHeaderData(java.util.Map <ZipArchiveEntry, IAC_NameAndComment> entriesWithoutUTF8Flag)
//throws IOException
{
java.util.Enumeration <ZipArchiveEntry> e = getEntries();
while (e.hasMoreElements())
{
ZipArchiveEntry ze = e.nextElement();
IAC_OffsetEntry offsetEntry = entries.get(ze);
long offset = offsetEntry.headerOffset;
archive.seek(offset + LFH_OFFSET_FOR_FILENAME_LENGTH);
byte[] b = new byte[SHORT];
archive.readFully(b);
int fileNameLen = ZipShort.getValue(b);
archive.readFully(b);
int extraFieldLen = ZipShort.getValue(b);
int lenToSkip = fileNameLen;
while (lenToSkip > 0)
{
int skipped = archive.skipBytes(lenToSkip);
if (skipped <= 0)
{
throw new java.lang.RuntimeException("failed to skip file name in"
+ " local file header");
}
lenToSkip -= skipped;
}
byte[] localExtraData = new byte[extraFieldLen];
archive.readFully(localExtraData);
ze.setExtra(localExtraData);
/*dataOffsets.put(ze,
* new Long(offset + LFH_OFFSET_FOR_FILENAME_LENGTH
+ SHORT + SHORT + fileNameLen + extraFieldLen));
*/
offsetEntry.dataOffset = offset + LFH_OFFSET_FOR_FILENAME_LENGTH
+ SHORT + SHORT + fileNameLen + extraFieldLen;
if (entriesWithoutUTF8Flag.containsKey(ze))
{
String orig = ze.getName();
IAC_NameAndComment nc = (IAC_NameAndComment)entriesWithoutUTF8Flag.get(ze);
ZipUtil.setNameAndCommentFromExtraFields(ze, nc.name, nc.comment);
if (!orig.equals(ze.getName()))
{
nameMap.remove(orig);
nameMap.put(ze.getName(), ze);
}
}
}
}
/**
* Reading a column definition from file<br>
* @param ff file handle (correctly positioned)
* @param iCol index starts with 1
* @param locn offset to the current column
* @return struct with column info
*/
internal static TsColumn readColdef(java.io.RandomAccessFile ff, String tableName, int iCol, int locn) //throws tinySQLException
{
try
{
// seek the position of the field definition data.
// This information appears after the first 32 byte
// table information, and lives in 32 byte chunks.
//
ff.seek((iCol - 1) * 32 + 32);
// get the column name into a byte array
//
byte[] b = new byte[11];
ff.readFully(b);
// convert the byte array to a String
// Seek first 0x00 occurence and strip array after that
//
// some C-implementations do not set the remaining bytes
// after the name to 0x00, so we have to correct this.
//bool clear = false;
int i = 0;
while ((i < 11) && (b[i] != 0))
{
i++;
}
while (i < 11)
{
b[i] = 0;
i++;
}
String colName = (new java.lang.StringJ(b, Utils.encode)).trim();
// read in the column type which follows the 11 byte column name
//
byte[] c = new byte[1];
c[0] = ff.readByte();
String ftyp = new java.lang.StringJ(c, Utils.encode);
// skip four bytes
//
ff.skipBytes(4);
// get field length and precision which are in the two bytes following
// the column type.
//
short flen = Utils.fixByte(ff.readByte()); // 16
short fdec = Utils.fixByte(ff.readByte()); // 17
if (ftyp.equals("N") & fdec == 0)
{
ftyp = "I";
}
// bytes 18 - 31 are reserved
// create a new tsColumn object and assign it the
// attributes of the current field
//
if (TinySQLGlobals.DEBUG)
{
java.lang.SystemJ.outJ.println("Try and create tsColumn for " + colName);
}
TsColumn column = new TsColumn(colName);
/*
* The column type is now given as java.sql.Types constant
*/
column.type = typeToSQLType(ftyp);
column.size = flen;
column.decimalPlaces = fdec;
column.position = locn + 1; // set the field position to the current
column.tableName = tableName;
return(column);
}
catch (Exception e)
{
throw new TinySQLException(e.getMessage());
}
}
