Example usage for javax.servlet UnavailableException UnavailableException

List of usage examples for javax.servlet UnavailableException UnavailableException

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Introduction

In this page you can find the example usage for javax.servlet UnavailableException UnavailableException.

Prototype


public UnavailableException(String msg)

Source Link

Document

Constructs a new exception with a descriptive message indicating that the servlet is permanently unavailable.

Usage

From source file:TransactionConnectionServlet.java

public void init(ServletConfig config) throws ServletException {
    super.init(config);
    try {/*from w w  w  .  j a  v  a2  s .c o m*/
        // load the driver
        Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
    } catch (ClassNotFoundException e) {
        throw new UnavailableException(
                "TransactionConnection.init() ClassNotFoundException: " + e.getMessage());
    } catch (IllegalAccessException e) {
        throw new UnavailableException(
                "TransactionConnection.init() IllegalAccessException: " + e.getMessage());
    } catch (InstantiationException e) {
        throw new UnavailableException(
                "TransactionConnection.init() InstantiationException: " + e.getMessage());
    }
}

From source file:DedicatedConnectionServlet.java

public void init(ServletConfig config) throws ServletException {
    super.init(config);
    try {//from   www  .ja  va 2 s . co m
        // load the driver
        Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
    } catch (ClassNotFoundException e) {
        throw new UnavailableException("DedicatedConnection.init() ClassNotFoundException: " + e.getMessage());
    } catch (IllegalAccessException e) {
        throw new UnavailableException("DedicatedConnection.init() IllegalAccessException: " + e.getMessage());
    } catch (InstantiationException e) {
        throw new UnavailableException("DedicatedConnection.init() InstantiationException: " + e.getMessage());
    }

    try {
        // establish a connection
        connection = DriverManager.getConnection("jdbc:oracle:thin:@dssw2k01:1521:orcl", "scott", "tiger");
        connected = System.currentTimeMillis();
    } catch (SQLException e) {
        throw new UnavailableException("DedicatedConnection.init() SQLException: " + e.getMessage());
    }
}

From source file:SessionLogin.java

public void init(ServletConfig config) throws ServletException {
    super.init(config);
    try {/*from   w  ww.  j  a  v a 2 s  . c  o m*/
        // load the driver
        Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
    } catch (ClassNotFoundException e) {
        throw new UnavailableException("Login init() ClassNotFoundException: " + e.getMessage());
    } catch (IllegalAccessException e) {
        throw new UnavailableException("Login init() IllegalAccessException: " + e.getMessage());
    } catch (InstantiationException e) {
        throw new UnavailableException("Login init() InstantiationException: " + e.getMessage());
    }
}

From source file:au.org.paperminer.common.AbstractServlet.java

/**
 * Check all application wide services required to be available
 * before request servicing can proceed.
 * @exception javax.servlet.UnavailableException Do not start application
 *///from   ww  w.j av  a2s  .c  om
@Override
public void init() throws ServletException {
    m_logger = Logger.getLogger(LOGGER);
    if (!testConnectionPool()) {
        throw new UnavailableException("Database unavailable. Notify Administrator.");
    }
}

From source file:TransactionConnectionServlet.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {

    response.setContentType("text/html");
    PrintWriter out = response.getWriter();
    out.println("<html>");
    out.println("<head>");
    out.println("<title>A Per Transaction Connection</title>");
    out.println("</head>");
    out.println("<body>");

    Connection connection = null;
    try {// w ww .ja  v  a 2 s.c o  m
        // establish a connection
        connection = DriverManager.getConnection("jdbc:oracle:thin:@dssw2k01:1521:orcl", "scott", "tiger");
    } catch (SQLException e) {
        throw new UnavailableException("TransactionConnection.init() SQLException: " + e.getMessage());
    }

    Statement statement = null;
    ResultSet resultSet = null;
    String userName = null;
    try {
        // test the connection
        statement = connection.createStatement();
        resultSet = statement.executeQuery("select initcap(user) from sys.dual");
        if (resultSet.next())
            userName = resultSet.getString(1);
    } catch (SQLException e) {
        out.println("TransactionConnection.doGet() SQLException: " + e.getMessage() + "<p>");
    } finally {
        if (resultSet != null)
            try {
                resultSet.close();
            } catch (SQLException ignore) {
            }
        if (statement != null)
            try {
                statement.close();
            } catch (SQLException ignore) {
            }
    }

    if (connection != null) {
        // close the connection
        try {
            connection.close();
        } catch (SQLException ignore) {
        }
    }

    out.println("Hello " + userName + "!<p>");
    out.println("You're using a per transaction connection!<p>");
    out.println("</body>");
    out.println("</html>");
}

From source file:com.boylesoftware.web.impl.routes.RoutesRouterConfiguration.java

@Override
protected void buildRoutes(final ServletContext sc, final RoutesBuilder routes) throws UnavailableException {

    try (final InputStream in = sc.getResourceAsStream(ROUTES_PATH)) {

        if (in == null)
            throw new UnavailableException("No " + ROUTES_PATH + " found in the web-application.");

        final RoutesParser parser = new RoutesParser(
                new CommonTokenStream(new RoutesLexer(new ANTLRInputStream(in))));
        parser.setErrorHandler(new BailErrorStrategy());
        parser.setRoutesBuilder(routes);
        try {//w  ww. j  a v a 2 s  .c o m
            parser.config();
        } catch (final Exception e) {
            this.error(e);
        }

    } catch (final IOException e) {
        this.error(e);
    }
}

From source file:de.ecw.zabos.Globals.java

/**
 * Initalisiert das Bean {@link SpringContext#BEAN_DAEMON_MANAGER}, Klasse
 * {@link DaemonMgr}.//from w  ww .  j  a  v  a2 s. com
 * 
 * @throws UnavailableException
 *             Falls das Bean null ist
 */
private static void initDaemons() throws UnavailableException {
    if (SpringContext.getInstance().getBean(SpringContext.BEAN_DAEMON_MANAGER, DaemonMgr.class) == null) {
        throw new UnavailableException(SpringContext.BEAN_DAEMON_MANAGER + " wurde nicht erstellt");
    }
}

From source file:com.boylesoftware.web.impl.routes.RoutesRouterConfiguration.java

/**
 * Convert exception to {@link UnavailableException} and throw it.
 *
 * @param e Original exception.//from  w ww . j  a v a2s  .com
 *
 * @throws UnavailableException Always.
 */
private void error(final Exception e) throws UnavailableException {

    LogFactory.getLog(this.getClass()).error("error loading router configuration", e);
    throw new UnavailableException("Error loading router configuration: " + e.getMessage());
}

From source file:com.boylesoftware.web.impl.auth.SessionlessAuthenticationService.java

/**
 * Create new authenticator.//from w  ww  . ja va  2s  .  c  o m
 *
 * @param userRecordHandler User record handler.
 * @param userRecordsCache Authenticated user records cache.
 *
 * @throws UnavailableException If an error happens creating the service.
 */
public SessionlessAuthenticationService(final UserRecordHandler<T> userRecordHandler,
        final UserRecordsCache<T> userRecordsCache) throws UnavailableException {

    // store the references
    this.userRecordHandler = userRecordHandler;
    this.userRecordsCache = userRecordsCache;

    // get configured secret key from the JNDI
    String secretKeyStr;
    try {
        final InitialContext jndi = new InitialContext();
        try {
            secretKeyStr = (String) jndi.lookup("java:comp/env/secretKey");
        } finally {
            jndi.close();
        }
    } catch (final NamingException e) {
        throw new UnavailableException("Error looking up secret key in the JNDI: " + e);
    }
    if (!secretKeyStr.matches("[0-9A-Fa-f]{32}"))
        throw new UnavailableException("Configured secret key is" + " invalid. The key must be a 16 bytes value"
                + " encoded as a hexadecimal string.");
    final Key secretKey = new SecretKeySpec(Hex.decode(secretKeyStr), CipherToolbox.ALGORITHM);

    // create the cipher pool
    this.cipherPool = new FastPool<>(new PoolableObjectFactory<CipherToolbox>() {

        @Override
        public CipherToolbox makeNew(final FastPool<CipherToolbox> pool, final int pooledObjectId) {

            return new CipherToolbox(pool, pooledObjectId, secretKey);
        }
    }, "AuthenticatorCiphersPool");
}

From source file:net.lightbody.bmp.proxy.jetty.jetty.servlet.Default.java

public void init() throws UnavailableException {
    ServletContext config = getServletContext();
    _servletHandler = ((ServletHandler.Context) config).getServletHandler();
    _httpContext = _servletHandler.getHttpContext();

    _acceptRanges = getInitBoolean("acceptRanges");
    _dirAllowed = getInitBoolean("dirAllowed");
    _putAllowed = getInitBoolean("putAllowed");
    _delAllowed = getInitBoolean("delAllowed");
    _redirectWelcomeFiles = getInitBoolean("redirectWelcome");
    _minGzipLength = getInitInt("minGzipLength");

    String rrb = getInitParameter("relativeResourceBase");
    if (rrb != null) {
        try {/*w  w  w. ja  va 2s. com*/
            _resourceBase = _httpContext.getBaseResource().addPath(rrb);
        } catch (Exception e) {
            log.warn(LogSupport.EXCEPTION, e);
            throw new UnavailableException(e.toString());
        }
    }

    String rb = getInitParameter("resourceBase");

    if (rrb != null && rb != null)
        throw new UnavailableException("resourceBase & relativeResourceBase");

    if (rb != null) {
        try {
            _resourceBase = Resource.newResource(rb);
        } catch (Exception e) {
            log.warn(LogSupport.EXCEPTION, e);
            throw new UnavailableException(e.toString());
        }
    }
    if (log.isDebugEnabled())
        log.debug("resource base = " + _resourceBase);

    if (_putAllowed)
        _AllowString += ", PUT";
    if (_delAllowed)
        _AllowString += ", DELETE";
    if (_putAllowed && _delAllowed)
        _AllowString += ", MOVE";
}