/** Creates a Pooled connection and adds it to the connection pool. */
private void installConnection() throws EmanagerDatabaseException {
logger.debug("enter");
PooledConnection connection;
try {
connection = poolDataSource.getPooledConnection();
connection.addConnectionEventListener(this);
connection.getConnection().setAutoCommit(false);
synchronized (connectionPool) {
connectionPool.add(connection);
logger.debug("Database connection added.");
}
} catch (SQLException ex) {
logger.fatal("exception caught while obtaining database " + "connection: ex = " + ex);
SQLException ex1 = ex.getNextException();
while (ex1 != null) {
logger.fatal("chained sql exception ex1 = " + ex1);
SQLException nextEx = ex1.getNextException();
ex1 = nextEx;
}
String logString;
EmanagerDatabaseException ede;
logString =
EmanagerDatabaseStatusCode.DatabaseConnectionFailure.getStatusCodeDescription()
+ ex.getMessage();
logger.fatal(logString);
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.DatabaseConnectionFailure, logString);
throw ede;
}
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
ResultSet rs = null;
try {
// SET UP Context environment, to look for Data Pooling Resource
Context initCtx = new InitialContext();
Context envCtx = (Context) initCtx.lookup("java:comp/env");
DataSource ds = (DataSource) envCtx.lookup("jdbc/TestDB");
Connection dbcon = ds.getConnection();
// ########### SEARCH INPUT PARAMETERS, EXECUTE search
// #####################################################
Vector<String> params = new Vector<String>();
params.add(request.getParameter("fname"));
params.add(request.getParameter("lname"));
params.add(request.getParameter("title"));
params.add(request.getParameter("year"));
params.add(request.getParameter("director"));
List<Movie> movies = new ArrayList<Movie>();
movies = SQLServices.getMovies(params.toArray(new String[params.size()]), dbcon);
// ########## SET DEFAULT SESSION() PARAMETERS ####################################
request.getSession().removeAttribute("movies");
request.getSession().removeAttribute("linkedListMovies");
request.getSession().removeAttribute("hasPaged");
request.getSession().setAttribute("hasPaged", "no");
request.getSession().setAttribute("movies", movies);
request.getSession().setAttribute("currentIndex", "0");
request.getSession().setAttribute("defaultN", "5");
// ########## IF MOVIES FROM SEARCH NON-EMPTY ###########################################
List<String> fields = Movie.fieldNames();
int count = 1;
if (!movies.isEmpty()) {
request.setAttribute("movies", movies);
for (String field : fields) {
request.setAttribute("f" + count++, field);
}
request.getRequestDispatcher("../movieList.jsp").forward(request, response);
} else {
out.println("<html><head><title>error</title></head>");
out.println("<body><h1>could not find any movies, try your search again.</h1>");
out.println("<p> we are terribly sorry, please go back. </p>");
out.println("<table border>");
out.println("</table>");
}
dbcon.close();
} catch (SQLException ex) {
while (ex != null) {
System.out.println("SQL Exception: " + ex.getMessage());
ex = ex.getNextException();
}
} catch (java.lang.Exception ex) {
out.println(
"<html>"
+ "<head><title>"
+ "moviedb: error"
+ "</title></head>\n<body>"
+ "<p>SQL error in doGet: "
+ ex.getMessage()
+ "</p></body></html>");
return;
}
out.close();
}
