Example usage for javax.servlet ServletException ServletException

List of usage examples for javax.servlet ServletException ServletException

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Introduction

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

Prototype


public ServletException(Throwable rootCause)

Source Link

Document

Constructs a new servlet exception when the servlet needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation.

Usage

From source file:WeblogicDbServlet.java

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

    String sql = "select * from athlete";
    Connection conn = null;/*from   w ww  .  j  a v  a  2s  .  c om*/
    Statement stmt = null;
    ResultSet rs = null;
    ResultSetMetaData rsm = null;

    response.setContentType("text/html");
    java.io.PrintWriter out = response.getWriter();
    out.println("<html><head><title>Weblogic Database Access</title></head><body>");
    out.println("<h2>Database info</h2>");
    out.println("<table border='1'><tr>");

    try {

        conn = pool.getConnection();
        stmt = conn.createStatement();

        rs = stmt.executeQuery(sql);
        rsm = rs.getMetaData();
        int colCount = rsm.getColumnCount();

        //print column names
        for (int i = 1; i <= colCount; ++i) {

            out.println("<th>" + rsm.getColumnName(i) + "</th>");
        }

        out.println("</tr>");

        while (rs.next()) {

            out.println("<tr>");

            for (int i = 1; i <= colCount; ++i)
                out.println("<td>" + rs.getString(i) + "</td>");

            out.println("</tr>");
        }

    } catch (Exception e) {

        throw new ServletException(e.getMessage());

    } finally {

        try {

            stmt.close();
            conn.close();

        } catch (SQLException sqle) {
        }

    }
    out.println("</table></body></html>");
    out.close();

}

From source file:com.spt.evt.view.PartialRenderingTilesView.java

protected void renderMergedOutputModel(Map model, HttpServletRequest request, HttpServletResponse response)
        throws Exception {

    ServletContext servletContext = getServletContext();
    if ("nolayout".equals(request.getParameter("htmlFormat"))) {

        BasicTilesContainer container = (BasicTilesContainer) ServletUtil.getCurrentContainer(request,
                servletContext);//  www .ja v  a  2 s  .c  o  m
        if (container == null) {
            throw new ServletException("Tiles container is not initialized. "
                    + "Have you added a TilesConfigurer to your web application context?");
        }

        exposeModelAsRequestAttributes(model, request);
        JstlUtils.exposeLocalizationContext(new RequestContext(request, servletContext));

        TilesRequestContext tilesRequestContext = tilesRequestContextFactory
                .createRequestContext(container.getApplicationContext(), new Object[] { request, response });
        Definition compositeDefinition = container.getDefinitionsFactory().getDefinition(getUrl(),
                tilesRequestContext);

        Iterator<String> iterator = compositeDefinition.getAttributeNames();
        while (iterator.hasNext()) {
            String attributeName = (String) iterator.next();
            Attribute attribute = compositeDefinition.getAttribute(attributeName);
            if (attribute.getValue() == null || !(attribute.getValue() instanceof String)) {
                continue;
            }
            container.startContext(request, response).inheritCascadedAttributes(compositeDefinition);
            container.render(attribute, request, response);
            container.endContext(request, response);
        }
    } else {
        super.renderMergedOutputModel(model, request, response);
    }
}

From source file:edu.umd.cs.submitServer.filters.RegisterStudentsFilter.java

@Override
public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain)
        throws IOException, ServletException {
    HttpServletRequest request = (HttpServletRequest) req;
    HttpServletResponse response = (HttpServletResponse) resp;
    if (!request.getMethod().equals("POST")) {
        throw new ServletException("Only POST accepted");
    }/* ww w  . jav  a 2s .  com*/
    Connection conn = null;
    BufferedReader reader = null;
    FileItem fileItem = null;
    TreeSet<StudentRegistration> registeredStudents = new TreeSet<StudentRegistration>();
    List<String> errors = new ArrayList<String>();
    try {
        conn = getConnection();

        // MultipartRequestFilter is required
        MultipartRequest multipartRequest = (MultipartRequest) request.getAttribute(MULTIPART_REQUEST);

        Course course = (Course) request.getAttribute("course");

        // open the uploaded file
        fileItem = multipartRequest.getFileItem();
        reader = new BufferedReader(new InputStreamReader(fileItem.getInputStream()));

        int lineNumber = 1;

        while (true) {
            String line = reader.readLine();
            if (line == null)
                break;
            lineNumber++;

            // hard-coded skip of first two lines for Maryland-specific
            // format
            if (line.startsWith("Last,First,UID,section,ClassAcct,DirectoryID"))
                continue;
            if (line.startsWith(",,,,,")) {
                if (line.equals(",,,,,"))
                    continue;
                String ldap = line.substring(5);
                Student student = Student.lookupByLoginName(ldap, conn);
                if (student != null) {
                    StudentRegistration sr = StudentForUpload.registerStudent(course, student, "", ldap, null,
                            conn);
                    registeredStudents.add(sr);
                } else
                    errors.add("Did not find " + ldap);

                continue;

            }
            if (line.startsWith("#"))
                continue;

            // skip blank lines
            if (line.trim().equals(""))
                continue;

            try {
                StudentForUpload s = new StudentForUpload(line, delimiter);

                Student student = s.lookupOrInsert(conn);
                StudentRegistration sr = StudentForUpload.registerStudent(course, student, s.section,
                        s.classAccount, null, conn);
                registeredStudents.add(sr);

            } catch (IllegalStateException e) {
                errors.add(e.getMessage());
                ServletExceptionFilter.logError(conn, ServerError.Kind.EXCEPTION, request,
                        "error while registering " + line, null, e);

            } catch (Exception e1) {
                errors.add("Problem processing line: '" + line + "' at line number: " + lineNumber);
                ServletExceptionFilter.logError(conn, ServerError.Kind.EXCEPTION, request,
                        "error while registering " + line, null, e1);
            }
        }
    } catch (SQLException e) {
        throw new ServletException(e);
    } finally {
        releaseConnection(conn);
        if (reader != null)
            reader.close();
        if (fileItem != null)
            fileItem.delete();
    }
    request.setAttribute("registeredStudents", registeredStudents);
    request.setAttribute("errors", errors);
    chain.doFilter(request, response);
}

From source file:com.parakhcomputer.web.servlet.view.tiles2.AjaxDynamicTilesView.java

/**
 * Renders output using Tiles./*from ww w  .j a  v a 2  s . com*/
 */
protected void renderMergedOutputModel(Map model, HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    String beanName = getBeanName();
    String url = getUrl();

    ServletContext servletContext = getServletContext();
    TilesContainer container = TilesAccess.getContainer(servletContext);
    if (container == null) {
        throw new ServletException("Tiles container is not initialized. "
                + "Have you added a TilesConfigurer to your web application context?");
    }

    if (ajaxHandler.isAjaxRequest(request, response)) {
        // change URL used to lookup tiles template to correct definition
        String definitionName = dynamicTilesViewProcessor.startDynamicDefinition(beanName, url, request,
                response, container);

        super.renderMergedOutputModel(model, request, response);

        dynamicTilesViewProcessor.endDynamicDefinition(definitionName, beanName, request, response, container);
    } else {
        exposeModelAsRequestAttributes(model, request);

        dynamicTilesViewProcessor.renderMergedOutputModel(beanName, url, servletContext, request, response,
                container);
    }
}

From source file:com.adobe.communities.ugc.migration.legacyProfileExport.SocialGraphExportServlet.java

protected void doGet(final SlingHttpServletRequest request, final SlingHttpServletResponse response)
        throws ServletException, IOException {

    final JSONWriter writer = new JSONWriter(response.getWriter());
    writer.setTidy(true);/*from   w  ww  . j a v  a 2s .  c  om*/
    final SocialGraph graph = request.getResourceResolver().adaptTo(SocialGraph.class);
    final String path = StringUtils.stripEnd(request.getRequestParameter("path").getString(), "/");
    final Resource userRoot = request.getResourceResolver().getResource(path);
    if (null == userRoot) {
        throw new ServletException("Cannot locate a valid resource at " + path);
    }
    final ValueMap vm = userRoot.adaptTo(ValueMap.class);
    if (!vm.get("jcr:primaryType").equals("rep:AuthorizableFolder")) {
        throw new ServletException("Cannot locate a valid resource at " + path);
    }
    //iterate over child resources to get user nodes
    try {
        writer.object();
        exportSocialGraph(writer, userRoot, graph);
        writer.endObject();
    } catch (final JSONException e) {
        throw new ServletException("Encountered a json exception while exporting social graph", e);
    }
}

From source file:it.vige.greenarea.sgrl.servlet.CommonsFileUploadServlet.java

@Override
public void init(ServletConfig config) throws ServletException {
    super.init(config);
    tmpDir = new File(TMP_DIR_PATH);
    if (!tmpDir.isDirectory()) {
        throw new ServletException(TMP_DIR_PATH + " is not a directory");
    }/* w  ww  .  j a v  a  2  s .  c o  m*/
    String realPath = getServletContext().getRealPath(DESTINATION_DIR_PATH);
    destinationDir = new File(realPath);
    if (!destinationDir.isDirectory()) {
        throw new ServletException(DESTINATION_DIR_PATH + " is not a directory");
    }
    logger.info("realpath=" + realPath);

}

From source file:com.liferay.petra.doulos.servlet.DoulosServlet.java

@Override
public void init(ServletConfig servletConfig) throws ServletException {
    try {/*from ww  w . jav  a2s  . c o  m*/
        registerDoulosRequestProcessors();
    } catch (Exception e) {
        throw new ServletException(e);
    }

    String validIpsString = servletConfig.getInitParameter("validIps");

    if (validIpsString != null) {
        _validIps = validIpsString.split(",");
    } else {
        _validIps = new String[0];
    }
}

From source file:de.thischwa.pmcms.server.ZipProxyServlet.java

@Override
public void init(ServletConfig config) throws ServletException {
    zipPathToSkip = config.getInitParameter("zipPathToSkip");
    String fileParam = config.getInitParameter("file");
    if (StringUtils.isBlank(fileParam))
        throw new IllegalArgumentException("No file parameter found!");
    File file = null;/*  www  . j  a  va2  s.c om*/
    zipInfo = new HashMap<String, ZipEntry>();
    try {
        file = new File(config.getInitParameter("file"));
        if (!file.exists()) {
            throw new ServletException(String.format("Zip-file not found: %s", file.getPath()));
        }
        zipFile = new ZipFile(file);
        Enumeration<? extends ZipEntry> entries = zipFile.entries();
        while (entries.hasMoreElements()) {
            ZipEntry ze = entries.nextElement();
            String entryName = ze.getName();
            if (zipPathToSkip != null)
                entryName = entryName.substring(zipPathToSkip.length() + 1);
            if (entryName.startsWith("/"))
                entryName = entryName.substring(1);
            zipInfo.put(entryName, ze);
        }
        logger.debug("Found entries in zip: " + zipInfo.size());
    } catch (IOException e) {
        throw new ServletException("Couldn't read the zip file: " + e.getMessage(), e);
    }
    logger.info(String.format("ZipProxyServlet initialzed with file [%s] and path to skip [%s]", file.getPath(),
            zipPathToSkip));
}

From source file:org.guanxi.sp.engine.form.RegisterIdPFormController.java

public void init() throws ServletException {
    try {/*from w  w  w.  ja  v  a 2s. co m*/
        config = (Config) getServletContext().getAttribute(Guanxi.CONTEXT_ATTR_ENGINE_CONFIG);

        String exampleIdPFile = config.getIdPMetadataDirectory() + File.separator + "ExampleIDP.xml";

        exampleIdPDoc = EntityDescriptorDocument.Factory.parse(new File(exampleIdPFile));
    } catch (Exception ge) {
        throw new ServletException(ge);
    }
}

From source file:GuestBookServlet.java

/**
 * Provides the servlet with the chance to get runtime configuration values
 * and initialize itself. For a database servlet, you want to grab the
 * driver name, URL, and any connection information. For this example, I
 * assume a driver that requires a user name and password. For an example of
 * more database independent configuration, see Chapter 4.
 * /*w  ww  .  j  a  va  2s  .  c  om*/
 * @param cfg
 *            the servlet configuration information
 * @throws javax.servlet.ServletException
 *             could not load the specified JDBC driver
 */
public void init(ServletConfig cfg) throws ServletException {
    super.init(cfg);
    {
        String user, pw;

        driverName = cfg.getInitParameter("gb.driver");
        jdbcURL = cfg.getInitParameter("gb.jdbcURL");
        user = cfg.getInitParameter("gb.user");
        if (user != null) {
            connectionProperties.put("user", user);
        }
        pw = cfg.getInitParameter("gb.pw");
        if (pw != null) {
            connectionProperties.put("password", pw);
        }
        try {
            driver = (Driver) Class.forName(driverName).newInstance();
        } catch (Exception e) {
            throw new ServletException("Unable to load driver: " + e.getMessage());
        }
    }
}