public TinySQLParser(java.io.InputStream sqlInput, TinySQL inputEngine)
//throws TinySQLException
{
java.io.StreamTokenizer st;
FieldTokenizer ft;
java.io.Reader r;
String nextToken, upperField, nextField, keyWord = (String)null;
java.lang.StringBuffer cmdBuffer, inputSQLBuffer;
int lastIndex, keyIndex;
r = new java.io.BufferedReader(new java.io.InputStreamReader(sqlInput));
dbEngine = inputEngine;
actionList = new java.util.Vector <Object>();
columnList = new java.util.Vector <Object>();
columns = new java.util.Vector <Object>();
columnAliasList = new java.util.Vector <Object>();
contextList = new java.util.Vector <Object>();
valueList = new java.util.Vector <Object>();
tableName = (String)null;
whereClause = (TinySQLWhere)null;
/*
* The tableList is a list of table names, in the optimal order
* in which they should be scanned for the SELECT phrase.
* The java.util.Hashtable<Object,Object> tables contains table objects keyed by table
* alias and name.
*/
tableList = new java.util.Vector <Object>();
tables = new java.util.Hashtable <Object, Object>();
tables.put("TABLE_SELECT_ORDER", tableList);
try
{
st = new java.io.StreamTokenizer(r);
st.eolIsSignificant(false);
st.wordChars('\'', '}');
st.wordChars('?', '?');
st.wordChars('"', '.');
st.ordinaryChars('0', '9');
st.wordChars('0', '9');
cmdBuffer = new java.lang.StringBuffer();
inputSQLBuffer = new java.lang.StringBuffer();
while (st.nextToken() != java.io.StreamTokenizer.TT_EOF)
{
if (st.ttype == java.io.StreamTokenizer.TT_WORD)
{
nextToken = st.sval.trim();
}
else
{
continue;
}
if (inputSQLBuffer.length() > 0)
{
inputSQLBuffer.append(" ");
}
inputSQLBuffer.append(nextToken);
}
ft = new FieldTokenizer(inputSQLBuffer.toString(), ' ', false);
while (ft.hasMoreFields())
{
nextField = ft.nextField();
upperField = nextField.toUpperCase();
if (statementType == (String)null)
{
statementType = upperField;
lastIndex = getKeywordIndex(statementType, statementType);
if (lastIndex != 0)
{
throwException(9);
}
keyWord = statementType;
}
else
{
keyIndex = getKeywordIndex(statementType, upperField);
if (keyIndex < 0)
{
if (cmdBuffer.length() > 0)
{
cmdBuffer.append(" ");
}
cmdBuffer.append(nextField);
}
else
{
setPhrase(keyWord, cmdBuffer.toString());
cmdBuffer = new java.lang.StringBuffer();
keyWord = upperField;
if (TinySQLGlobals.PARSER_DEBUG)
{
java.lang.SystemJ.outJ.println("Found keyword " + keyWord);
}
}
}
}
if (keyWord != (String)null)
{
setPhrase(keyWord, cmdBuffer.toString());
}
addAction();
if (TinySQLGlobals.PARSER_DEBUG)
{
java.lang.SystemJ.outJ.println("SQL:" + inputSQLBuffer.toString());
}
} catch (Exception ex) {
if (TinySQLGlobals.DEBUG)
{
java.lang.SystemJ.outJ.println(ex.StackTrace); //ex.printStackTrace(java.lang.SystemJ.outJ);
}
throw new TinySQLException(ex.getMessage());
}
}
