/*
* Given a column name, and a Hashtable containing tables, determine
* which table "owns" a given column.
*/
private TinySQLTable getTableForColumn(java.util.Hashtable <Object, Object> tables, String inputColumn)
{
TinySQLTable tbl;
java.util.Vector <Object> tableNames;
java.util.Hashtable <Object, Object> columnInfo;
String findColumn, tableAndAlias = (String)null, tableAlias;
int i, dotAt;
findColumn = inputColumn.toUpperCase();
dotAt = findColumn.indexOf(".");
tableNames = (java.util.Vector <Object>)tables.get("TABLE_SELECT_ORDER");
if (dotAt > -1)
{
tableAlias = findColumn.substring(0, dotAt);
try
{
tableAndAlias = UtilString.findTableAlias(tableAlias, tableNames);
}
catch (Exception)
{
}
if (tableAndAlias != (String)null)
{
tbl = (TinySQLTable)tables.get(tableAndAlias);
if (tbl != (TinySQLTable)null)
{
return(tbl);
}
}
}
else
{
for (i = 0; i < tableNames.size(); i++)
{
tbl = (TinySQLTable)tables.get((String)tableNames.elementAt(i));
/*
* Get the Hashtable containing column information, and see if it
* contains the column we're looking for.
*/
columnInfo = tbl.column_info;
if (columnInfo != (java.util.Hashtable <Object, Object>)null)
{
if (columnInfo.containsKey(findColumn))
{
return(tbl);
}
}
}
}
return((TinySQLTable)null);
}
private void _GetGlossesUsingReflection()
{
com.articulate.sigma.WordNet wn = SUMO.WordNet.Intern;
FieldInfo nounType = wn.GetType().GetField("nounDocumentationHash", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
FieldInfo verbType = wn.GetType().GetField("verbDocumentationHash", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
FieldInfo adjType = wn.GetType().GetField("adjectiveDocumentationHash", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
FieldInfo advType = wn.GetType().GetField("adverbDocumentationHash", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
java.util.Hashtable nounHash = (java.util.Hashtable)nounType.GetValue(wn);
java.util.Hashtable verbHash = (java.util.Hashtable)verbType.GetValue(wn);
java.util.Hashtable adjHash = (java.util.Hashtable)adjType.GetValue(wn);
java.util.Hashtable advHash = (java.util.Hashtable)advType.GetValue(wn);
_glosses = new Hashtable();
_glosses.Add(SpeechTypes.Noun, nounHash.get(_id) == null ? "" : nounHash.get(_id));
_glosses.Add(SpeechTypes.Verb, verbHash.get(_id) == null ? "" : verbHash.get(_id));
_glosses.Add(SpeechTypes.Adjective, adjHash.get(_id) == null ? "" : adjHash.get(_id));
_glosses.Add(SpeechTypes.Adverb, advHash.get(_id) == null ? "" : advHash.get(_id));
}
/*
* Execute an SQL Select Statement
*/
protected virtual TsResultSet SelectStatement(java.util.Hashtable <Object, Object> t, java.util.Vector <Object> c,
TinySQLWhere w, String ot, bool distinct, Object stmt)
//throws TinySQLException
{
java.util.Hashtable <Object, Object> tables;
java.util.Vector <Object> tableList;
TsResultSet jrs;
TsColumn columnObject;
int i;
/*
* Instantiate a new, empty tsResultSet
*/
jrs = new TsResultSet(w, this);
groupFunctions = new java.util.Hashtable <Object, Object>();
try
{
jrs.setFetchSize(((TinySQLStatement)stmt).getFetchSize());
jrs.setType(((TinySQLStatement)stmt).getResultSetType());
}
catch (java.sql.SQLException)
{
Utils.log("Caught SQLException while setting Fetchsize and ResultSetType");
Utils.log(" This event is (should be) impossible!");
}
tables = t;
tableList = (java.util.Vector <Object>)tables.get("TABLE_SELECT_ORDER");
/*
* Add the column objects to the ResultSet.
*/
for (i = 0; i < c.size(); i++)
{
columnObject = (TsColumn)c.elementAt(i);
/*
* The column object is now added to the ResultSet
*/
jrs.addColumn(columnObject);
if (debug)
{
java.lang.SystemJ.outJ.println("Adding "
+ columnObject.contextToString()
+ " column " + newLine + columnObject.toString() + newLine);
}
}
jrs.setState(1, tables, ot, distinct);
contSelectStatement(jrs);
return(jrs);
}
public void testOneElementHashtableKeyEnumerator()
{
java.util.Hashtable <String, String> nameWert = new java.util.Hashtable <String, String>();
nameWert.put("1", "one");
java.util.Enumeration <String> names = nameWert.keys();
Assert.True(names.hasMoreElements());
String one = names.nextElement();
Assert.AreEqual("1", one);
one = nameWert.get(one);
Assert.AreEqual("one", one);
Assert.False(names.hasMoreElements());
}
public void removePropertyChangeListener(String propertyName,
PropertyChangeListener listener)
{
lock (this){
if ((propertyName != null) && (listener != null))
{
PropertyChangeSupport listeners = children.get(propertyName);
if (listeners != null)
{
listeners.removePropertyChangeListener(listener);
}
}
}
}
private void initOutputFiles()//throws FileNotFoundException, IOException {
{
while (true)
{
// try to find a unique file which is not locked by other process
uniqueID++;
// FIXME: improve performance here
for (int generation = 0; generation < count; generation++)
{
// cache all file names for rotation use
files[generation] = new java.io.File(parseFileName(generation));
}
fileName = files[0].getAbsolutePath();
lock (allLocks) {
/*
* if current process has held lock for this fileName continue
* to find next file
*/
if (null != allLocks.get(fileName))
{
continue;
}
if (files[0].exists() &&
(!append || files[0].length() >= limit))
{
for (int i = count - 1; i > 0; i--)
{
if (files[i].exists())
{
files[i].delete();
}
files[i - 1].renameTo(files[i]);
}
}
java.io.FileOutputStream fileStream = new java.io.FileOutputStream(fileName
+ LCK_EXT);
java.nio.channels.FileChannel channel = fileStream.getChannel();
/*
* if lock is unsupported and IOException thrown, just let the
* IOException throws out and exit otherwise it will go into an
* undead cycle
*/
lockJ = channel.tryLock();
if (null == lockJ)
{
try {
fileStream.close();
} catch (Exception e) {
// ignore
}
continue;
}
allLocks.put(fileName, lockJ);
break;
}
}
output = new MeasureOutputStream(new java.io.BufferedOutputStream(
new java.io.FileOutputStream(fileName, append)), files[0].length());
setOutputStream(output);
}
public void validateTable(String tableSpec, bool closeTable)
//throws TinySQLException
{
/*
* Create a table object for each table used in the SELECT statement
* and store these objects in the tables Hashtable. Save the original
* list of table names to set the default selection order.
*
* If closeTable is true the table object will be closed after it is
* validated (for DROP TABLE and ALTER TABLE commands).
*/
String tableName, tableAlias, tableNameAndAlias, sortName;
TinySQLTable addTable, sortTable;
bool tableAdded;
FieldTokenizer ftTable;
int i, addRowCount, sortRowCount;
ftTable = new FieldTokenizer(tableSpec, ' ', false);
tableName = ftTable.getField(0);
tableAlias = (ftTable.getField(1, tableName)).toUpperCase();
tableNameAndAlias = tableName + "->" + tableAlias;
addTable = dbEngine.getTable(tableNameAndAlias);
addTable.GoTop();
addRowCount = addTable.GetRowCount();
if (closeTable)
{
addTable.close();
}
if (TinySQLGlobals.PARSER_DEBUG)
{
java.lang.SystemJ.outJ.println("Add table " + tableNameAndAlias + " to tables");
}
tables.put(tableNameAndAlias, addTable);
tableAdded = false;
for (i = 0; i < tableList.size(); i++)
{
sortName = (String)tableList.elementAt(i);
sortTable = (TinySQLTable)tables.get(sortName);
sortRowCount = sortTable.GetRowCount();
/*
* Sort the table selections from smallest to largest table to
* enhance the query performance.
*/
if (addRowCount > sortRowCount)
{
continue;
}
tableList.insertElementAt(tableNameAndAlias, i);
tableAdded = true;
break;
}
if (!tableAdded)
{
tableList.addElement(tableNameAndAlias);
}
if (TinySQLGlobals.PARSER_DEBUG)
{
java.lang.SystemJ.outJ.println("Table selection order");
for (i = 0; i < tableList.size(); i++)
{
sortName = (String)tableList.elementAt(i);
sortTable = (TinySQLTable)tables.get(sortName);
sortRowCount = sortTable.GetRowCount();
java.lang.SystemJ.outJ.println(sortName + " " + sortRowCount);
}
}
}
/*
* Support function for restartable queries. Continue to
* read the query result. The current state is taken from
* tsResultSet. Proceed until maxFetchSize has reached.
*/
protected internal virtual void contSelectStatement(TsResultSet jrs)
//throws TinySQLException
{
/*
* The table scan here is an iterative tree expansion, similar to
* the algorithm shown in the outline example in Chapter 5.
*/
String columnName, columnString, whereStatus, tableAndAlias;
bool addOK;
int i;
int level = jrs.getLevel();
TinySQLTable jtbl;
TsColumn updateColumn;
java.util.Hashtable <Object, Object> tables = jrs.getTableState();
TinySQLWhere wc = jrs.getWhereClause();
/*
* Create a hashtable to enumerate the tables to be scanned and initialize
* with the first table name.
*/
java.util.Hashtable <Object, Object> tbl_list = new java.util.Hashtable <Object, Object>();
java.util.Vector <Object> t = (java.util.Vector <Object>)tables.get("TABLE_SELECT_ORDER");
String current = (String)t.elementAt(0);
tbl_list.put(current, new java.lang.Integer(1));
/*
* Create a row object; this is added to the ResultSet.
*/
TsRow record = new TsRow();
java.util.Vector <Object> resultSet = new java.util.Vector <Object>();
/*
* Keep retrieving rows until we run out of rows to process.
*/
while (level > 0)
{
bool levelFound = false;
/*
* Find an item within the tbl_list which has the same level as the
* one we're on.
*/
java.util.Enumeration <Object> keys = tbl_list.keys();
while (keys.hasMoreElements())
{
/*
* Get the next element in the "to be processed"
* Hashtable, and find out its level, storing this
* value in currLevel.
*/
String hashkey = (String)keys.nextElement();
int currLevel = ((java.lang.Integer)tbl_list.get(hashkey)).intValue();
/*
* As soon as an element is found whose level is equal to the
* one currently being processed, grab it's primary key (the hashkey),
* flag levelfound, and break!
*/
if (currLevel == level)
{
current = hashkey; levelFound = true; break;
}
}
bool haveRecord = false; // did we get a record or not?
/*
* If a table was found at the current level, then we should
* try to get another row from it.
*/
if (levelFound)
{
/*
* Get the current table
*/
jtbl = (TinySQLTable)tables.get(current);
tableAndAlias = jtbl.table + "->" + jtbl.tableAlias;
if (TinySQLGlobals.WHERE_DEBUG)
{
java.lang.SystemJ.outJ.println("Processing level " + level
+ " table " + tableAndAlias + "\n");
}
/*
* The following code is the start of setting up simple indexes
* for tinySQL. The concept involves creating a new tinySQLCondition
* class, instances of which will be created by tinySQLWhere. At least
* initially only conditions that are equal to a constant will be
* considered. One of these conditions will be stored inside the
* dbfFileTable object. Calls to NextRecord would then have to add
* logic to check to see if an index exists. The presence of a
* complete index would be indicated by a counter that was equal
* to the number of rows in the table. In that case a single get
* would deliver the record numbers required for the where condition.
* The NextRecord function would return these record numbers in
* sequence. If the index did not exist then new values in the
* index Hashtable would be created. None of this code has been
* developed or implemented, let alone tested.
*
*
* if ( wc != (tinySQLWhere)null )
* jtbl.setIndexCondition(wc.getIndexCondition(tableAndAlias));
*/
if (performDebug)
{
java.lang.SystemJ.outJ.println("Selecting records from "
+ jtbl.table);
}
/*
* Skip to the next undeleted record; at some point,
* this will run out of records, and found will be false.
*/
bool found = false;
while (jtbl.NextRecord())
{
/*
* Clear the column values for this table before starting
* to process the next row.
*/
for (i = 0; i < jrs.numcols(); i++)
{
updateColumn = jrs.columnAtIndex(i, true);
updateColumn.clear(tableAndAlias);
}
if (wc != (TinySQLWhere)null)
{
wc.clearValues(tableAndAlias);
}
if (!jtbl.isDeleted())
{
/*
* Evaluate the where clause for each column in the table. If
* it is false, skip to the next row. Otherwise, add the
* column value to the output record.
*/
java.util.Enumeration <Object> cols = jtbl.column_info.keys();
found = true;
whereStatus = "TRUE";
while (cols.hasMoreElements())
{
columnName = tableAndAlias + "."
+ (String)cols.nextElement();
columnString = jtbl.GetCol(columnName);
if (wc != (TinySQLWhere)null)
{
whereStatus = wc.evaluate(columnName, columnString);
if (whereStatus.equals("FALSE"))
{
/*
* This column value caused the where clause to
* be FALSE. Go to the next row in the table.
*/
found = false;
break;
}
}
/*
* Update the ResultSet tsColumn values
*/
jrs.updateColumns(columnName, columnString);
}
/*
* If no where condition has evaluated to false then this
* record is a candidate for output. Break to the next table
* in this case for further WHERE processing.
*/
if (found)
{
break;
}
}
}
if (found)
{
if (TinySQLGlobals.DEBUG)
{
java.lang.SystemJ.outJ.println("Build candidate record.");
}
for (i = 0; i < jrs.numcols(); i++)
{
updateColumn = jrs.columnAtIndex(i, true);
/*
* Evaluate all functions before adding the
* column to the output record.
*/
updateColumn.updateFunctions();
columnString = updateColumn.getString();
if (updateColumn.isNotNull())
{
record.put(updateColumn.name, columnString);
}
else
{
record.remove(updateColumn.name);
}
}
if (performDebug)
{
java.lang.SystemJ.outJ.println("Record is " + record.toString());
}
/*
* If the table we are processing is not the last in
* the list, then we should increment level and loop to the top.
*/
if (level < t.size())
{
/*
* Increment level
*/
level++;
/*
* Add the next table in the list of tables to
* the tbl_list, the Hashtable of "to be processed" tables.
*/
String next_tbl = (String)t.elementAt(level - 1);
tbl_list.put(next_tbl, new java.lang.Integer(level));
}
else
{
/*
* If the table that was just processed is the last in
* the list, then we have drilled down to the bottom;
* all columns have values, and we can add it to the
* result set. The next time through, the program
* will try to read another row at this level; if it's
* found, only columns for the table being read will
* be overwritten in the tsRow.
*
* Columns for the other table will be left alone, and
* another row will be added to the result set. Here
* is the essence of the Cartesian Product which is
* being built here.
*/
haveRecord = true;
}
}
else
{
/*
* We didn't find any more records at this level.
* Reset the record pointer to the top of the table,
* and decrement level. We have hit end of file here.
*/
if (wc != (TinySQLWhere)null)
{
wc.clearValues(tableAndAlias);
}
level--;
jtbl.GoTop();
}
}
else
{
/*
* No tables were found at this level; back up a level
* and see if there's any up there.
*/
level--;
}
/*
* If we got a record, then add it to the result set.
*/
if (haveRecord)
{
/*
* If group functions are involved, add records only after a break,
* which is defined as a change in all of the group columns.
* Otherwise, update the current record.
*/
if (jrs.isGrouped())
{
if (groupBreak)
{
addOK = jrs.addRow((TsRow)record.clone());
if (addOK == false)
{
jrs.setLevel(level);
return;
}
groupBreak = false;
}
else
{
jrs.updateRow((TsRow)record.clone());
}
}
else
{
/*
* No group functions are involved. Just add the record.
*/
addOK = jrs.addRow((TsRow)record.clone());
if (addOK == false)
{
jrs.setLevel(level);
return;
}
}
}
}
/*
* Close all the tables
*/
for (i = 0; i < t.size(); i++)
{
jtbl = (TinySQLTable)tables.get((String)t.elementAt(i));
jtbl.close();
}
/*
* return a result set
*/
jrs.setLevel(0);
}
/**
* Gets a description of table columns available in
* the specified catalog.
*
* <P>Only column descriptions matching the catalog, schema, table
* and column name criteria are returned. They are ordered by
* TABLE_SCHEM, TABLE_NAME and ORDINAL_POSITION.
*
* <P>Each column description has the following columns:
* <OL>
* <LI><B>TABLE_CAT</B> String => table catalog (may be null)
* <LI><B>TABLE_SCHEM</B> String => table schema (may be null)sRow record = new TsRow();
*
* <LI><B>TABLE_NAME</B> String => table name
* <LI><B>COLUMN_NAME</B> String => column name
* <LI><B>DATA_TYPE</B> short => SQL type from java.sql.Types
* <LI><B>TYPE_NAME</B> String => Data source dependent type name,
* for a UDT the type name is fully qualified
* <LI><B>COLUMN_SIZE</B> int => column size. For char or date
* types this is the maximum number of characters, for numeric or
* decimal types this is precision.
* <LI><B>BUFFER_LENGTH</B> is not used.
* <LI><B>DECIMAL_DIGITS</B> int => the number of fractional digits
* <LI><B>NUM_PREC_RADIX</B> int => Radix (typically either 10 or 2)
* <LI><B>NULLABLE</B> int => is NULL allowed?
* <UL>
* <LI> columnNoNulls - might not allow NULL values
* <LI> columnNullable - definitely allows NULL values
* <LI> columnNullableUnknown - nullability unknown
* </UL>
* <LI><B>REMARKS</B> String => comment describing column (may be null)
* <LI><B>COLUMN_DEF</B> String => default value (may be null)
* <LI><B>SQL_DATA_TYPE</B> int => unused
* <LI><B>SQL_DATETIME_SUB</B> int => unused
* <LI><B>CHAR_OCTET_LENGTH</B> int => for char types the
* maximum number of bytes in the column
* <LI><B>ORDINAL_POSITION</B> int => index of column in table
* (starting at 1)
* <LI><B>IS_NULLABLE</B> String => "NO" means column definitely
* does not allow NULL values; "YES" means the column might
* allow NULL values. An empty string means nobody knows.
* </OL>
*
* @param catalog a catalog name; "" retrieves those without a
* catalog; null means drop catalog name from the selection criteria
* @param schemaPattern a schema name pattern; "" retrieves those
* without a schema
* @param tableNamePattern a table name pattern
* @param columnNamePattern a column name pattern
* @return ResultSet - each row is a column description
* @exception SQLException if a database access error occurs
* @see #getSearchStringEscape
*/
public override java.sql.ResultSet getColumns(String catalog, String schemaPattern,
String tableNamePattern, String columnNamePattern)
{
int i;
String columnNameKey;
try
{
String dataDir = getDataDir();
Utils.log("Entering getColumns(tableNamePattern='" + tableNamePattern + "')");
if (dataDir == null)
{
return(null);
}
java.sql.ResultSet tableRs = getTables(catalog, schemaPattern, tableNamePattern, null);
TsResultSet jrs = new TsResultSet();
TsColumn jsc = new TsColumn("TABLE_CAT");
jsc.type = java.sql.Types.CHAR;
jsc.size = 9;
jrs.addColumn(jsc);
jsc = new TsColumn("TABLE_SCHEM");
jsc.type = java.sql.Types.CHAR;
jsc.size = 11;
jrs.addColumn(jsc);
jsc = new TsColumn("TABLE_NAME");
jsc.type = java.sql.Types.CHAR;
jsc.size = 10;
jrs.addColumn(jsc);
jsc = new TsColumn("COLUMN_NAME");
jsc.type = java.sql.Types.CHAR;
jsc.size = 11;
jrs.addColumn(jsc);
jsc = new TsColumn("DATA_TYPE");
jsc.type = java.sql.Types.INTEGER;
jsc.size = 6;
jrs.addColumn(jsc);
jsc = new TsColumn("TYPE_NAME");
jsc.type = java.sql.Types.CHAR;
jsc.size = 9;
jrs.addColumn(jsc);
jsc = new TsColumn("COLUMN_SIZE");
jsc.type = java.sql.Types.INTEGER;
jsc.size = 8;
jrs.addColumn(jsc);
jsc = new TsColumn("BUFFER_LENGTH");
jsc.type = java.sql.Types.INTEGER;
jsc.size = 8;
jrs.addColumn(jsc);
jsc = new TsColumn("DECIMAL_DIGITS");
jsc.type = java.sql.Types.INTEGER;
jsc.size = 8;
jrs.addColumn(jsc);
jsc = new TsColumn("NUM_PREC_RADIX");
jsc.type = java.sql.Types.INTEGER;
jsc.size = 8;
jrs.addColumn(jsc);
jsc = new TsColumn("NULLABLE");
jsc.type = java.sql.Types.INTEGER;
jsc.size = 8;
jrs.addColumn(jsc);
jsc = new TsColumn("REMARKS");
jsc.type = java.sql.Types.CHAR;
jsc.size = 128;
jrs.addColumn(jsc);
jsc = new TsColumn("COLUMN_DEF");
jsc.type = java.sql.Types.CHAR;
jsc.size = 128;
jrs.addColumn(jsc);
jsc = new TsColumn("SQL_DATA_TYPE");
jsc.type = java.sql.Types.INTEGER;
jsc.size = 128;
jrs.addColumn(jsc);
// Several parameters missing.
jsc = new TsColumn("IS_NULLABLE");
jsc.type = java.sql.Types.CHAR;
jsc.size = 3;
jrs.addColumn(jsc);
while (tableRs.next())
{ // process each DBF file and extract column info ...
String tableName = tableRs.getString("TABLE_NAME");
DBFFileTable tbl;
try
{
tbl = new DBFFileTable(dataDir, tableName);
}
catch (Exception)
{
continue; // ignore buggy and empty (zero byte size) DBF files
}
Utils.log("Accessing column info for table " + tableName);
java.util.Hashtable <Object, Object> column_info = tbl.column_info;
for (i = 0; i < tbl.columnNameKeys.size(); i++)
{
columnNameKey = (String)tbl.columnNameKeys.elementAt(i);
TsColumn tsc = (TsColumn)column_info.get(columnNameKey);
// process each column of the current table ...
TsRow record = new TsRow();
record.put("TABLE_CAT", "");
record.put("TABLE_SCHEM", "");
record.put("TABLE_NAME", tableName);
record.put("COLUMN_NAME", TinySQLGlobals.getLongName(tsc.name));
record.put("DATA_TYPE", new java.lang.Integer(tsc.type).toString());
record.put("TYPE_NAME", DBFFile.typeToLiteral(tsc.type).toString());
record.put("COLUMN_SIZE", new java.lang.Integer(tsc.size).toString());
record.put("DECIMAL_DIGITS", new java.lang.Integer(tsc.decimalPlaces).toString());
int nullable = columnNoNulls;
if (tsc.notNull == true)
{
nullable = columnNullable;
}
record.put("NULLABLE", new java.lang.Integer(nullable).toString());
record.put("REMARKS", "noRemarks");
String defaultVal = tsc.defaultVal;
if (defaultVal == null)
{
defaultVal = "";
}
record.put("COLUMN_DEF", defaultVal);
String isNullable = "NO";
if (tsc.notNull == true)
{
isNullable = "YES";
}
record.put("IS_NULLABLE", isNullable);
/*
* Suppress any sorting of the ResultSet. Column Metadata should
* be presented in the order the columns exist in the dBase header.
*/
jrs.addRow(record, false);
}
tbl.close();
tbl = null;
}
return(new TinySQLResultSet(jrs, (TinySQLStatement)null));
}
catch (Exception)
{
return(null);
}
}
internal TsColumn(String s, java.util.Hashtable <Object, Object> tableDefs, String inputContext)
//throws tinySQLException
{
FieldTokenizer ft, ftArgs;
int j, numericType, nameLength, dotAt, argIndex;
String upperName, checkName, nextArg;
TinySQLTable jtbl;
TsColumn tcol;
java.util.Vector <Object> t;
java.util.Enumeration <Object> col_keys;
name = s;
longName = name;
nameLength = name.length();
contextList = new java.util.Vector <Object>();
contextList.addElement(inputContext);
ft = new FieldTokenizer(name, '(', false);
if (ft.countFields() == 2)
{
/*
* This is a function rather than a simple column or constant
*/
functionName = ft.getField(0).toUpperCase();
if (functionName.equals("COUNT"))
{
type = java.sql.Types.INTEGER;
size = 10;
intValue = java.lang.Integer.MIN_VALUE;
groupedColumn = true;
}
else if (functionName.equals("SUM"))
{
type = java.sql.Types.FLOAT;
size = 10;
groupedColumn = true;
}
else if (functionName.equals("TO_DATE"))
{
type = java.sql.Types.DATE;
size = 10;
}
else if (functionName.equals("CONCAT") |
functionName.equals("UPPER") |
functionName.equals("SUBSTR") |
functionName.equals("TRIM"))
{
type = java.sql.Types.CHAR;
}
functionArgString = ft.getField(1);
ftArgs = new FieldTokenizer(functionArgString, ',', false);
functionArgs = new java.util.Vector <Object>();
argIndex = 0;
while (ftArgs.hasMoreFields())
{
nextArg = ftArgs.nextField();
tcol = new TsColumn(nextArg, tableDefs, inputContext);
if (tcol.isGroupedColumn())
{
groupedColumn = true;
}
/*
* MAX and MIN functions can be either FLOAT or CHAR types
* depending upon the type of the argument.
*/
if (functionName.equals("MAX") | functionName.equals("MIN"))
{
if (argIndex > 0)
{
throw new TinySQLException("Function can only have 1 argument");
}
groupedColumn = true;
type = tcol.type;
size = tcol.size;
}
else if (functionName.equals("CONCAT"))
{
type = java.sql.Types.CHAR;
size += tcol.size;
}
else if (functionName.equals("UPPER"))
{
type = java.sql.Types.CHAR;
size = tcol.size;
}
else if (functionName.equals("TO_DATE"))
{
type = java.sql.Types.DATE;
size = 10;
}
else if (functionName.equals("TRIM"))
{
type = java.sql.Types.CHAR;
size = tcol.size;
}
else if (functionName.equals("SUBSTR"))
{
type = java.sql.Types.CHAR;
if (argIndex == 0 & tcol.type != java.sql.Types.CHAR)
{
throw new TinySQLException("SUBSTR first argument must be character");
}
else if (argIndex == 1)
{
if (tcol.type != java.sql.Types.INTEGER | tcol.intValue < 1)
{
throw new TinySQLException("SUBSTR second argument "
+ tcol.getString() + " must be integer > 0");
}
}
else if (argIndex == 2)
{
if (tcol.type != java.sql.Types.INTEGER | tcol.intValue < 1)
{
throw new TinySQLException("SUBSTR third argument "
+ tcol.getString() + " must be integer > 0");
}
size = tcol.intValue;
}
}
argIndex++;
functionArgs.addElement(tcol);
}
}
else
{
/*
* Check for SYSDATE
*/
if (name.toUpperCase().equals("SYSDATE"))
{
isConstant = true;
type = java.sql.Types.DATE;
size = 10;
notNull = true;
valueSet = true;
//Basties mote: not really SimpleDateFormat needed... - need yyyy-MM-dd
// stringValue = fmtyyyyMMdd.format(today.getTime());
stringValue = System.DateTime.Today.ToString("yyyy-MM-dd");
/*
* Check for a quoted string
*/
}
else if (UtilString.isQuotedString(name))
{
isConstant = true;
type = java.sql.Types.CHAR;
stringValue = UtilString.removeQuotes(name);
if (stringValue != (String)null)
{
size = stringValue.length();
notNull = true;
valueSet = true;
}
}
else
{
/*
* Check for a numeric constant
*/
numericType = UtilString.getValueType(name);
if (numericType == java.sql.Types.INTEGER)
{
intValue = java.lang.Integer.valueOf(name).intValue();
size = 10;
type = numericType;
isConstant = true;
notNull = true;
valueSet = true;
}
else if (numericType == java.sql.Types.FLOAT)
{
floatValue = java.lang.Float.valueOf(name).floatValue();
size = 10;
type = numericType;
isConstant = true;
notNull = true;
valueSet = true;
}
else
{
/*
* This should be a column name.
*/
columnTable = (TinySQLTable)null;
upperName = name.toUpperCase();
if (TinySQLGlobals.DEBUG)
{
java.lang.SystemJ.outJ.println("Trying to find table for " + upperName);
}
dotAt = upperName.indexOf(".");
if (dotAt > -1)
{
tableName = upperName.substring(0, dotAt);
if (tableDefs != (java.util.Hashtable <Object, Object>)null &
tableName.indexOf("->") < 0)
{
t = (java.util.Vector <Object>)tableDefs.get("TABLE_SELECT_ORDER");
tableName = UtilString.findTableAlias(tableName, t);
}
upperName = upperName.substring(dotAt + 1);
/*
* Check to see if this column name has a short equivalent.
*/
if (upperName.length() > 11)
{
longName = name;
upperName = TinySQLGlobals.getShortName(upperName);
}
columnTable = (TinySQLTable)tableDefs.get(tableName);
}
else if (tableDefs != (java.util.Hashtable <Object, Object>)null)
{
/*
* Check to see if this column name has a short equivalent.
*/
if (upperName.length() > 11)
{
longName = name;
upperName = TinySQLGlobals.getShortName(upperName);
}
/*
* Use an enumeration to go through all of the tables to find
* this column.
*/
t = (java.util.Vector <Object>)tableDefs.get("TABLE_SELECT_ORDER");
for (j = 0; j < t.size(); j++)
{
tableName = (String)t.elementAt(j);
jtbl = (TinySQLTable)tableDefs.get(tableName);
col_keys = jtbl.column_info.keys();
/*
* Check all columns.
*/
while (col_keys.hasMoreElements())
{
checkName = (String)col_keys.nextElement();
if (checkName.equals(upperName))
{
upperName = checkName;
columnTable = jtbl;
break;
}
}
if (columnTable != (TinySQLTable)null)
{
break;
}
}
}
else
{
if (TinySQLGlobals.DEBUG)
{
java.lang.SystemJ.outJ.println("No table definitions.");
}
}
if (columnTable != (TinySQLTable)null)
{
name = columnTable.table + "->" + columnTable.tableAlias
+ "." + upperName;
type = columnTable.ColType(upperName);
size = columnTable.ColSize(upperName);
decimalPlaces = columnTable.ColDec(upperName);
tableName = columnTable.table + "->" + columnTable.tableAlias;
}
}
}
}
}
/*
* This method formats an action Hashtable for display.
*/
public static String actionToString(java.util.Hashtable <Object, Object> displayAction)
{
java.lang.StringBuffer displayBuffer = new java.lang.StringBuffer();
String displayType, tableName;
TinySQLWhere displayWhere;
TsColumn createColumn, displayColumn;
bool groupBy = false, orderBy = false;
int i;
java.util.Vector <Object> displayTables, displayColumns, columnDefs, displayValues;
java.util.Hashtable <Object, Object> tables;
displayType = (String)displayAction.get("TYPE");
displayBuffer.append(displayType + " ");
displayWhere = null;
displayColumns = null;
if (displayType.equals("SELECT"))
{
tables = (java.util.Hashtable <Object, Object>)displayAction.get("TABLES");
displayTables = (java.util.Vector <Object>)tables.get("TABLE_SELECT_ORDER");
displayColumns = (java.util.Vector <Object>)displayAction.get("COLUMNS");
displayWhere = (TinySQLWhere)displayAction.get("WHERE");
for (i = 0; i < displayColumns.size(); i++)
{
displayColumn = (TsColumn)displayColumns.elementAt(i);
if (displayColumn.getContext("GROUP"))
{
groupBy = true;
continue;
}
else if (displayColumn.getContext("ORDER"))
{
orderBy = true;
continue;
}
if (i > 0)
{
displayBuffer.append(",");
}
displayBuffer.append((String)displayColumn.name);
}
displayBuffer.append(" FROM ");
for (i = 0; i < displayTables.size(); i++)
{
if (i > 0)
{
displayBuffer.append(",");
}
displayBuffer.append((String)displayTables.elementAt(i));
}
}
else if (displayType.equals("DROP_TABLE"))
{
tableName = (String)displayAction.get("TABLE");
displayBuffer.append(tableName);
}
else if (displayType.equals("CREATE_TABLE"))
{
tableName = (String)displayAction.get("TABLE");
displayBuffer.append(tableName + " (");
columnDefs = (java.util.Vector <Object>)displayAction.get("COLUMN_DEF");
for (i = 0; i < columnDefs.size(); i++)
{
if (i > 0)
{
displayBuffer.append(",");
}
createColumn = (TsColumn)columnDefs.elementAt(i);
displayBuffer.append(createColumn.name + " " + createColumn.type
+ "( " + createColumn.size + "," + createColumn.decimalPlaces
+ ")");
}
displayBuffer.append(")");
}
else if (displayType.equals("INSERT"))
{
tableName = (String)displayAction.get("TABLE");
displayBuffer.append("INTO " + tableName + "(");
displayColumns = (java.util.Vector <Object>)displayAction.get("COLUMNS");
for (i = 0; i < displayColumns.size(); i++)
{
if (i > 0)
{
displayBuffer.append(",");
}
displayBuffer.append((String)displayColumns.elementAt(i));
}
displayBuffer.append(") VALUES (");
displayValues = (java.util.Vector <Object>)displayAction.get("VALUES");
for (i = 0; i < displayValues.size(); i++)
{
if (i > 0)
{
displayBuffer.append(",");
}
displayBuffer.append((String)displayValues.elementAt(i));
}
displayBuffer.append(")");
}
else if (displayType.equals("UPDATE"))
{
tableName = (String)displayAction.get("TABLE");
displayBuffer.append(tableName + " SET ");
displayColumns = (java.util.Vector <Object>)displayAction.get("COLUMNS");
displayValues = (java.util.Vector <Object>)displayAction.get("VALUES");
displayWhere = (TinySQLWhere)displayAction.get("WHERE");
for (i = 0; i < displayColumns.size(); i++)
{
if (i > 0)
{
displayBuffer.append(",");
}
displayBuffer.append((String)displayColumns.elementAt(i)
+ "=" + (String)displayValues.elementAt(i));
}
}
else if (displayType.equals("DELETE"))
{
tableName = (String)displayAction.get("TABLE");
displayBuffer.append(" FROM " + tableName);
displayWhere = (TinySQLWhere)displayAction.get("WHERE");
}
if (displayWhere != (TinySQLWhere)null)
{
displayBuffer.append(displayWhere.toString());
}
if (groupBy)
{
displayBuffer.append(" GROUP BY ");
for (i = 0; i < displayColumns.size(); i++)
{
displayColumn = (TsColumn)displayColumns.elementAt(i);
if (!displayColumn.getContext("GROUP"))
{
continue;
}
if (!displayBuffer.toString().endsWith(" GROUP BY "))
{
displayBuffer.append(",");
}
displayBuffer.append(displayColumn.name);
}
}
if (orderBy)
{
displayBuffer.append(" ORDER BY ");
for (i = 0; i < displayColumns.size(); i++)
{
displayColumn = (TsColumn)displayColumns.elementAt(i);
if (!displayColumn.getContext("ORDER"))
{
continue;
}
if (!displayBuffer.toString().endsWith(" ORDER BY "))
{
displayBuffer.append(",");
}
displayBuffer.append(displayColumn.name);
}
}
return(displayBuffer.toString());
}
/*
* Sets the receiver's stream handler to one which is appropriate for its
* protocol. Throws a MalformedURLException if no reasonable handler is
* available.
* <p/>
* Note that this will overwrite any existing stream handler with the new
* one. Senders must check if the strmHandler is null before calling the
* method if they do not want this behavior (a speed optimization).
*/
void setupStreamHandler()
{
String className = null;
// Check for a cached (previously looked up) handler for
// the requested protocol.
strmHandler = streamHandlers.get(protocol);
if (strmHandler != null)
{
return;
}
// If there is a stream handler factory, then attempt to
// use it to create the handler.
if (streamHandlerFactory != null)
{
strmHandler = streamHandlerFactory.createURLStreamHandler(protocol);
if (strmHandler != null)
{
streamHandlers.put(protocol, strmHandler);
return;
}
}
// Check if there is a list of packages which can provide handlers.
// If so, then walk this list looking for an applicable one.
String packageList = java.security.AccessController
.doPrivileged(new PriviAction <String>(
"java.protocol.handler.pkgs")); //$NON-NLS-1$
if (packageList != null)
{
java.util.StringTokenizer st = new java.util.StringTokenizer(packageList, "|"); //$NON-NLS-1$
while (st.hasMoreTokens())
{
className = st.nextToken() + "." + protocol + ".Handler"; //$NON-NLS-1$ //$NON-NLS-2$
try
{
strmHandler = (URLStreamHandler)java.lang.Class.forName(className,
true, java.lang.ClassLoader.getSystemClassLoader())
.newInstance();
if (strmHandler != null)
{
streamHandlers.put(protocol, strmHandler);
}
return;
}
catch (java.lang.IllegalAccessException e)
{
}
catch (java.lang.InstantiationException e)
{
}
catch (java.lang.ClassNotFoundException e)
{
}
}
}
// No one else has provided a handler, so try our internal one.
className = "org.apache.harmony.luni.internal.net.www.protocol." + protocol //$NON-NLS-1$
+ ".Handler"; //$NON-NLS-1$
try
{
strmHandler = (URLStreamHandler)java.lang.Class.forName(className)
.newInstance();
}
catch (java.lang.IllegalAccessException e)
{
}
catch (java.lang.InstantiationException e)
{
}
catch (java.lang.ClassNotFoundException e)
{
}
if (strmHandler != null)
{
streamHandlers.put(protocol, strmHandler);
}
}