/**
* Load the Session associated with the id <code>id</code>. If no such session is found <code>null
* </code> is returned.
*
* @param id a value of type <code>String</code>
* @return the stored <code>Session</code>
* @exception ClassNotFoundException if an error occurs
* @exception IOException if an input/output error occurred
*/
public Session load(String id) throws ClassNotFoundException, IOException {
ResultSet rst = null;
StandardSession _session = null;
Loader loader = null;
ClassLoader classLoader = null;
ObjectInputStream ois = null;
BufferedInputStream bis = null;
Container container = manager.getContainer();
String loadSql =
"SELECT "
+ sessionIdCol
+ ", "
+ sessionDataCol
+ " FROM "
+ sessionTable
+ " WHERE "
+ sessionIdCol
+ " = ? AND "
+ sessionAppCol
+ " = ?";
synchronized (this) {
Connection _conn = getConnection();
if (_conn == null) {
return (null);
}
try {
if (preparedLoadSql == null) {
preparedLoadSql = _conn.prepareStatement(loadSql);
}
preparedLoadSql.setString(1, id);
preparedLoadSql.setString(2, getName());
rst = preparedLoadSql.executeQuery();
if (rst.next()) {
bis = new BufferedInputStream(rst.getBinaryStream(2));
if (container != null) {
loader = container.getLoader();
}
if (loader != null) {
classLoader = loader.getClassLoader();
}
if (classLoader != null) {
ois = new CustomObjectInputStream(bis, classLoader);
} else {
ois = new ObjectInputStream(bis);
}
if (debug > 0) {
log(sm.getString(getStoreName() + ".loading", id, sessionTable));
}
_session = (StandardSession) manager.createEmptySession();
_session.readObjectData(ois);
_session.setManager(manager);
} else if (debug > 0) {
log(getStoreName() + ": No persisted data object found");
}
} catch (SQLException e) {
log(sm.getString(getStoreName() + ".SQLException", e));
} finally {
try {
if (rst != null) {
rst.close();
}
} catch (SQLException e) {;
}
if (ois != null) {
try {
ois.close();
} catch (IOException e) {;
}
}
release(_conn);
}
}
return (_session);
}
public Loader getLoader() {
if (loader != null) return (loader);
if (parent != null) return (parent.getLoader());
return (null);
}