/**
* This method creates a rpm data type out of a input stream and an
* IndexEntry. The object must at the current position of the input stream.
* The length is only needed for string objects; the string objects will
* read length bytes of the input stream and will try to convert the data
* into a rpm data type.
*
* @param inputStream
* The input stream
* @param indexEntry
* The IndexEntry that should be read
* @param length
* The number of bytes to read for string objects
*
* @return One of the rpm data types coresponding with the type contained in
* the IndexEntry.
*
* @throws IOException
* if something was wrong during reading of the input stream
*/
public static DataTypeIf createFromStream(
java.io.DataInputStream inputStream, IndexEntry indexEntry,
long length)
{//throws IOException {
DataTypeIf ret = null;
switch ((int)indexEntry.getType().getId())
{
case RPMIndexType._NULL:
ret = NULL.readFromStream(indexEntry);
break;
case RPMIndexType._CHAR:
ret = CHAR.readFromStream(inputStream, indexEntry);
break;
case RPMIndexType._INT8:
ret = INT8.readFromStream(inputStream, indexEntry);
break;
case RPMIndexType._INT16:
ret = INT16.readFromStream(inputStream, indexEntry);
break;
case RPMIndexType._INT32:
ret = INT32.readFromStream(inputStream, indexEntry);
break;
case RPMIndexType._INT64:
ret = INT64.readFromStream(inputStream, indexEntry);
break;
case RPMIndexType._STRING:
ret = STRING.readFromStream(inputStream, indexEntry, length);
break;
case RPMIndexType._BIN:
ret = BIN.readFromStream(inputStream, indexEntry);
break;
case RPMIndexType._STRING_ARRAY:
ret = STRING_ARRAY.readFromStream(inputStream, indexEntry, length);
break;
case RPMIndexType._I18NSTRING:
ret = I18NSTRING.readFromStream(inputStream, indexEntry, length);
break;
default:
// TODO: UNKNOWN
break;
}
return(ret);
}
/**
* Constructs a type froma stream
*
* @param indexEntry The index informations
* @return The size of the read data
*/
public static NULL readFromStream(IndexEntry indexEntry)
{
if (indexEntry.getType() != RPMIndexType.NULL)
{
throw new java.lang.IllegalArgumentException("Type <" + indexEntry.getType()
+ "> does not match <" + RPMIndexType.NULL + ">");
}
NULL nullObject = new NULL((int)indexEntry.getCount());
if (logger.isLoggable(java.util.logging.Level.FINER))
{
logger.finer(nullObject.toString());
}
// nullObject.size = indexEntry.getType().getSize() *
// indexEntry.getCount();
return(nullObject);
}
