public String toString() {
StringBuilder txt = new StringBuilder(256);
txt.append("XID[Format=").append(fmtId).append(", Global=0x");
txt.append(Support.toHex(gtran)).append(", Branch=0x");
txt.append(Support.toHex(bqual)).append(']');
return txt.toString();
}
public BigDecimal getBigDecimal(int parameterIndex, int scale) throws SQLException {
BigDecimal bd =
(BigDecimal)
Support.convert(this, getOutputValue(parameterIndex), java.sql.Types.DECIMAL, null);
return bd.setScale(scale);
}
public byte[] getBytes(int parameterIndex) throws SQLException {
return ((byte[])
Support.convert(
this,
getOutputValue(parameterIndex),
java.sql.Types.VARBINARY,
connection.getCharset()));
}
/**
* Substitute actual data for the parameter markers to simulate parameter substitution in a
* PreparedStatement.
*
* @param sql The SQL containing parameter markers to substitute.
* @param list The parameter descriptors.
* @param connection The current connection.
* @return The modified SQL statement.
*/
static String substituteParameters(String sql, ParamInfo[] list, ConnectionJDBC2 connection)
throws SQLException {
int len = sql.length();
for (int i = 0; i < list.length; i++) {
if (!list[i].isRetVal && !list[i].isSet && !list[i].isOutput) {
throw new SQLException(
Messages.get("error.prepare.paramnotset", Integer.toString(i + 1)), "07000");
}
Object value = list[i].value;
if (value instanceof java.io.InputStream || value instanceof java.io.Reader) {
try {
if (list[i].jdbcType == java.sql.Types.LONGVARCHAR
|| list[i].jdbcType == java.sql.Types.CLOB
|| list[i].jdbcType == java.sql.Types.VARCHAR) {
// TODO: Should improve the character set handling here
value = list[i].getString("US-ASCII");
} else {
value = list[i].getBytes("US-ASCII");
}
// Replace the stream/reader with the String/byte[]
list[i].value = value;
} catch (java.io.IOException e) {
throw new SQLException(Messages.get("error.generic.ioerror", e.getMessage()), "HY000");
}
}
if (value instanceof String) {
len += ((String) value).length() + 5;
} else if (value instanceof byte[]) {
len += ((byte[]) value).length * 2 + 4;
} else {
len += 32; // Default size
}
}
StringBuffer buf = new StringBuffer(len + 16);
int start = 0;
for (int i = 0; i < list.length; i++) {
int pos = list[i].markerPos;
if (pos > 0) {
buf.append(sql.substring(start, list[i].markerPos));
start = pos + 1;
final boolean isUnicode = connection.getTdsVersion() >= Driver.TDS70 && list[i].isUnicode;
Support.embedData(buf, list[i].value, isUnicode, connection);
}
}
if (start < sql.length()) {
buf.append(sql.substring(start));
}
return buf.toString();
}
public Date getDate(int parameterIndex, Calendar cal) throws SQLException {
java.sql.Date date = getDate(parameterIndex);
if (date != null && cal != null) {
date = new java.sql.Date(Support.timeToZone(date, cal));
}
return date;
}
public Time getTime(int parameterIndex, Calendar cal) throws SQLException {
java.sql.Time time = getTime(parameterIndex);
if (time != null && cal != null) {
time = new java.sql.Time(Support.timeToZone(time, cal));
}
return time;
}
public Timestamp getTimestamp(int parameterIndex, Calendar cal) throws SQLException {
Timestamp timestamp = getTimestamp(parameterIndex);
if (timestamp != null && cal != null) {
timestamp = new Timestamp(Support.timeToZone(timestamp, cal));
}
return timestamp;
}
public URL getURL(int parameterIndex) throws SQLException {
String url =
(String)
Support.convert(
this,
getOutputValue(parameterIndex),
java.sql.Types.VARCHAR,
connection.getCharset());
try {
return new java.net.URL(url);
} catch (MalformedURLException e) {
throw new SQLException(Messages.get("error.resultset.badurl", url), "22000");
}
}
/**
* Copy the contents of a Reader stream to the server as bytes.
*
* <p>NB. Only reliable where the charset is single byte.
*
* @param in The Reader object with the data.
* @param length The length of the data in bytes.
* @throws IOException
*/
void writeReaderBytes(Reader in, int length) throws IOException {
char buffer[] = new char[1024];
for (int i = 0; i < length; ) {
int result = in.read(buffer);
if (result == -1) {
throw new java.io.IOException("Data in stream less than specified by length");
} else if (i + result > length) {
throw new java.io.IOException("More data in stream than specified by length");
}
write(Support.encodeString(socket.getCharset(), new String(buffer, 0, result)));
i += result;
}
}
public void registerOutParameter(int parameterIndex, int sqlType, int scale) throws SQLException {
ParamInfo pi = getParameter(parameterIndex);
pi.isOutput = true;
if (Support.getJdbcTypeName(sqlType).equals("ERROR")) {
throw new SQLException(
Messages.get("error.generic.badtype", Integer.toString(sqlType)), "HY092");
}
if (sqlType == java.sql.Types.CLOB) {
pi.jdbcType = java.sql.Types.LONGVARCHAR;
} else if (sqlType == java.sql.Types.BLOB) {
pi.jdbcType = java.sql.Types.LONGVARBINARY;
} else {
pi.jdbcType = sqlType;
}
pi.scale = scale;
}
public void updateRow() throws SQLException {
checkOpen();
checkUpdateable();
rowUpdated = false;
rowDeleted = false;
if (currentRow == null) {
throw new SQLException(Messages.get("error.resultset.norow"), "24000");
}
if (onInsertRow) {
throw new SQLException(Messages.get("error.resultset.insrow"), "24000");
}
if (updateRow == null) {
// Nothing to update
return;
}
boolean keysChanged = false;
//
// Construct an SQL UPDATE statement
//
StringBuffer sql = new StringBuffer(128);
ArrayList params = new ArrayList();
sql.append("UPDATE ");
sql.append(tableName);
//
// OK now create assign new values
//
sql.append(" SET ");
int count = 0;
for (int i = 0; i < columnCount; i++) {
if (updateRow[i] != null) {
if (count > 0) {
sql.append(", ");
}
sql.append(columns[i].realName);
sql.append("=?");
updateRow[i].markerPos = sql.length() - 1;
params.add(updateRow[i]);
count++;
if (columns[i].isKey) {
// Key is changing so in memory row will need to be deleted
// and reinserted at end of row buffer.
keysChanged = true;
}
}
}
if (count == 0) {
// There are no columns to update in this table
// so bail out now.
return;
}
//
// Now construct where clause
//
ParamInfo parameters[] = buildWhereClause(sql, params, false);
//
// Now execute update
//
updateTds.executeSQL(
sql.toString(),
null,
parameters,
false,
0,
statement.getMaxRows(),
statement.getMaxFieldSize(),
true);
int updateCount = 0;
while (!updateTds.isEndOfResponse()) {
if (!updateTds.getMoreResults()) {
if (updateTds.isUpdateCount()) {
updateCount = updateTds.getUpdateCount();
}
}
}
updateTds.clearResponseQueue();
statement.getMessages().checkErrors();
if (updateCount == 0) {
// No update. Possibly row was changed on database by another user?
throw new SQLException(Messages.get("error.resultset.updatefail"), "24000");
}
//
// Update local copy of data
//
if (resultSetType != ResultSet.TYPE_SCROLL_INSENSITIVE) {
// Make in memory copy reflect database update
// Could use refreshRow but this is much faster.
ConnectionJDBC2 con = (ConnectionJDBC2) statement.getConnection();
for (int i = 0; i < updateRow.length; i++) {
if (updateRow[i] != null) {
currentRow[i] =
Support.convert(con, updateRow[i].value, columns[i].jdbcType, con.getCharset());
}
}
}
//
// Update state of cached row data
//
if (keysChanged && resultSetType == ResultSet.TYPE_SCROLL_SENSITIVE) {
// Leave hole at current position and add updated row to end of set
rowData.add(currentRow);
rowsInResult = rowData.size();
rowData.set(pos - 1, null);
currentRow = null;
rowDeleted = true;
} else {
rowUpdated = true;
}
//
// Clear update values
//
cancelRowUpdates();
}
public double getDouble(int parameterIndex) throws SQLException {
return ((Double)
Support.convert(this, getOutputValue(parameterIndex), java.sql.Types.DOUBLE, null))
.doubleValue();
}
public byte getByte(int parameterIndex) throws SQLException {
return ((Integer)
Support.convert(this, getOutputValue(parameterIndex), java.sql.Types.TINYINT, null))
.byteValue();
}
public Timestamp getTimestamp(int parameterIndex) throws SQLException {
return (Timestamp)
Support.convert(this, getOutputValue(parameterIndex), java.sql.Types.TIMESTAMP, null);
}
public float getFloat(int parameterIndex) throws SQLException {
return ((Double)
Support.convert(this, getOutputValue(parameterIndex), java.sql.Types.FLOAT, null))
.floatValue();
}
public int getInt(int parameterIndex) throws SQLException {
return ((Integer)
Support.convert(this, getOutputValue(parameterIndex), java.sql.Types.INTEGER, null))
.intValue();
}
public Date getDate(int parameterIndex) throws SQLException {
return (java.sql.Date)
Support.convert(this, getOutputValue(parameterIndex), java.sql.Types.DATE, null);
}
public BigDecimal getBigDecimal(int parameterIndex) throws SQLException {
return (BigDecimal)
Support.convert(this, getOutputValue(parameterIndex), java.sql.Types.DECIMAL, null);
}
public void insertRow() throws SQLException {
checkOpen();
checkUpdateable();
if (!onInsertRow) {
throw new SQLException(Messages.get("error.resultset.notinsrow"), "24000");
}
if (!tempResultSet) {
//
// Construct an SQL INSERT statement
//
StringBuffer sql = new StringBuffer(128);
String dbName = columns[0].catalog;
String userName = columns[0].schema;
String tableName = columns[0].tableName;
ArrayList params = new ArrayList();
sql.append("INSERT INTO ");
if (dbName != null) {
sql.append(dbName);
sql.append('.');
if (userName == null) {
sql.append('.');
}
}
if (userName != null) {
sql.append(userName);
sql.append('.');
}
sql.append(tableName);
int sqlLen = sql.length();
//
// Create column list
//
sql.append(" (");
int count = 0;
for (int i = 0; i < columnCount; i++) {
if (insertRow[i] != null) {
if (count > 0) {
sql.append(", ");
}
sql.append(columns[i].realName);
count++;
}
}
//
// Create new values list
//
sql.append(") VALUES(");
count = 0;
for (int i = 0; i < columnCount; i++) {
if (insertRow[i] != null) {
if (count > 0) {
sql.append(", ");
}
sql.append("?");
insertRow[i].markerPos = sql.length() - 1;
params.add(insertRow[i]);
count++;
}
}
sql.append(')');
if (count == 0) {
// Empty insert
sql.setLength(sqlLen);
sql.append(" DEFAULT VALUES");
}
ParamInfo parameters[] = (ParamInfo[]) params.toArray(new ParamInfo[params.size()]);
//
// execute the insert statement
//
updateTds.executeSQL(
sql.toString(),
null,
parameters,
false,
0,
statement.getMaxRows(),
statement.getMaxFieldSize(),
true);
int updateCount = 0;
while (!updateTds.isEndOfResponse()) {
if (!updateTds.getMoreResults()) {
if (updateTds.isUpdateCount()) {
updateCount = updateTds.getUpdateCount();
}
}
}
updateTds.clearResponseQueue();
statement.getMessages().checkErrors();
if (updateCount < 1) {
// No Insert. Probably will not get here as duplicate key etc
// will have already been reported as an exception.
throw new SQLException(Messages.get("error.resultset.insertfail"), "24000");
}
}
//
if (resultSetType == ResultSet.TYPE_SCROLL_SENSITIVE
|| resultSetType == ResultSet.TYPE_FORWARD_ONLY && cursorName == null) {
//
// Now insert copy of row into result set buffer
//
ConnectionJDBC2 con = (ConnectionJDBC2) statement.getConnection();
Object row[] = newRow();
for (int i = 0; i < insertRow.length; i++) {
if (insertRow[i] != null) {
row[i] = Support.convert(con, insertRow[i].value, columns[i].jdbcType, con.getCharset());
}
}
rowData.add(row);
}
rowsInResult++;
initialRowCnt++;
//
// Clear row data
//
for (int i = 0; insertRow != null && i < insertRow.length; i++) {
if (insertRow[i] != null) {
insertRow[i].clearInValue();
}
}
}
public String getString(int parameterIndex) throws SQLException {
return (String)
Support.convert(
this, getOutputValue(parameterIndex), java.sql.Types.VARCHAR, connection.getCharset());
}
public long getLong(int parameterIndex) throws SQLException {
return ((Long)
Support.convert(this, getOutputValue(parameterIndex), java.sql.Types.BIGINT, null))
.longValue();
}
/**
* Create a new scrollable result set in memory or a named server cursor.
*
* @param sql The SQL SELECT statement.
* @param procName Optional procedure name for cursors based on a stored procedure.
* @param parameters Optional stored procedure parameters.
* @exception java.sql.SQLException
*/
private void cursorCreate(String sql, String procName, ParamInfo[] parameters)
throws SQLException {
//
boolean isSelect = false;
SQLWarning warning = null;
//
// Validate the SQL statement to ensure we have a select.
//
if (resultSetType != ResultSet.TYPE_FORWARD_ONLY
|| concurrency == ResultSet.CONCUR_UPDATABLE
|| cursorName != null) {
//
// We are going to need access to a SELECT statement for
// this to work. Reparse the SQL now and check.
//
ArrayList params = new ArrayList();
String tmp[] =
new SQLParser(sql, params, (ConnectionJDBC2) statement.getConnection()).parse(true);
if (tmp[2].equals("select") && tmp[3] != null && tmp[3].length() > 0) {
// OK We have a select with at least one table.
tableName = tmp[3];
isSelect = true;
} else {
// No good we can't update and we can't declare a cursor
cursorName = null;
if (concurrency == ResultSet.CONCUR_UPDATABLE) {
concurrency = ResultSet.CONCUR_READ_ONLY;
warning =
new SQLWarning(Messages.get("warning.cursordowngraded", "CONCUR_READ_ONLY"), "01000");
}
if (resultSetType == ResultSet.TYPE_SCROLL_SENSITIVE) {
resultSetType = ResultSet.TYPE_SCROLL_INSENSITIVE;
SQLWarning warning2 =
new SQLWarning(
Messages.get("warning.cursordowngraded", "TYPE_SCROLL_INSENSITIVE"), "01000");
if (warning != null) {
warning.setNextWarning(warning2);
} else {
warning = warning2;
}
}
}
}
//
// If a cursor name is specified we try and declare a conventional cursor
//
if (cursorName != null) {
//
// We need to substitute any parameters now as the prepended DECLARE CURSOR
// will throw the parameter positions off.
//
if (parameters != null && parameters.length > 0) {
sql = Support.substituteParameters(sql, parameters, statement.getTds().getTdsVersion());
}
StringBuffer cursorSQL = new StringBuffer(sql.length() + cursorName.length() + 128);
cursorSQL.append("DECLARE ").append(cursorName).append(" CURSOR FOR ").append(sql);
cursorTds.executeSQL(
cursorSQL.toString(),
procName,
parameters,
false,
statement.getQueryTimeout(),
statement.getMaxRows(),
statement.getMaxFieldSize(),
true);
cursorTds.clearResponseQueue();
cursorSQL.setLength(0);
cursorSQL.append("\r\nOPEN ").append(cursorName);
if (fetchSize > 1 && isSybase) {
cursorSQL.append("\r\nSET CURSOR ROWS ").append(fetchSize);
cursorSQL.append(" FOR ").append(cursorName);
}
cursorSQL.append("\r\nFETCH ").append(cursorName);
//
// OK Declare cursor, open it and fetch first (fetchSize) rows.
//
cursorTds.executeSQL(
cursorSQL.toString(),
null,
null,
false,
statement.getQueryTimeout(),
statement.getMaxRows(),
statement.getMaxFieldSize(),
true);
while (!cursorTds.getMoreResults() && !cursorTds.isEndOfResponse()) ;
if (!cursorTds.isResultSet()) {
throw new SQLException(Messages.get("error.statement.noresult"), "24000");
}
columns = cursorTds.getColumns();
columnCount = getColumnCount(columns);
} else {
//
// Open a memory cached scrollable or forward only possibly updateable cursor
//
if (isSelect
&& (concurrency == ResultSet.CONCUR_UPDATABLE
|| resultSetType != ResultSet.TYPE_FORWARD_ONLY)) {
// Need to execute SELECT .. FOR BROWSE to get
// the MetaData we require for updates etc
// OK Should have an SQL select statement
// append " FOR BROWSE" to obtain table names
// NB. We can't use any jTDS temporary stored proc
cursorTds.executeSQL(
sql + " FOR BROWSE",
null,
parameters,
false,
statement.getQueryTimeout(),
statement.getMaxRows(),
statement.getMaxFieldSize(),
true);
while (!cursorTds.getMoreResults() && !cursorTds.isEndOfResponse()) ;
if (!cursorTds.isResultSet()) {
throw new SQLException(Messages.get("error.statement.noresult"), "24000");
}
columns = cursorTds.getColumns();
columnCount = getColumnCount(columns);
rowData = new ArrayList(INITIAL_ROW_COUNT);
//
// Load result set into buffer
//
while (super.next()) {
rowData.add(copyRow(currentRow));
}
rowsInResult = rowData.size();
initialRowCnt = rowsInResult;
pos = POS_BEFORE_FIRST;
//
// If cursor is built over one table and the table has
// key columns then the result set is updateable and / or
// can be used as a scroll sensitive result set.
//
if (!isCursorUpdateable()) {
// No so downgrade
if (concurrency == ResultSet.CONCUR_UPDATABLE) {
concurrency = ResultSet.CONCUR_READ_ONLY;
statement.addWarning(
new SQLWarning(
Messages.get("warning.cursordowngraded", "CONCUR_READ_ONLY"), "01000"));
}
if (resultSetType == ResultSet.TYPE_SCROLL_SENSITIVE) {
resultSetType = ResultSet.TYPE_SCROLL_INSENSITIVE;
statement.addWarning(
new SQLWarning(
Messages.get("warning.cursordowngraded", "TYPE_SCROLL_INSENSITIVE"), "01000"));
}
}
return;
}
//
// Create a read only cursor using direct SQL
//
cursorTds.executeSQL(
sql,
procName,
parameters,
false,
statement.getQueryTimeout(),
statement.getMaxRows(),
statement.getMaxFieldSize(),
true);
while (!cursorTds.getMoreResults() && !cursorTds.isEndOfResponse()) ;
if (!cursorTds.isResultSet()) {
throw new SQLException(Messages.get("error.statement.noresult"), "24000");
}
columns = cursorTds.getColumns();
columnCount = getColumnCount(columns);
rowData = new ArrayList(INITIAL_ROW_COUNT);
//
// Load result set into buffer
//
while (super.next()) {
rowData.add(copyRow(currentRow));
}
rowsInResult = rowData.size();
initialRowCnt = rowsInResult;
pos = POS_BEFORE_FIRST;
if (warning != null) {
statement.addWarning(warning);
}
}
}
public boolean getBoolean(int parameterIndex) throws SQLException {
return ((Boolean) Support.convert(this, getOutputValue(parameterIndex), BOOLEAN, null))
.booleanValue();
}
public short getShort(int parameterIndex) throws SQLException {
return ((Integer)
Support.convert(this, getOutputValue(parameterIndex), java.sql.Types.SMALLINT, null))
.shortValue();
}
