Examples with UnavailableException javax.servlet.UnavailableException used on opensource projects

Example 56 with UnavailableException

use of javax.servlet.UnavailableException in project sonarqube by SonarSource.

the class ActionServlet method processForwardConfigClass.

/**
     * <p>Checks if the current forwardConfig is using the correct class based
     * on the class of its configuration ancestor.  If actionConfig is
     * provided, then this method will process the forwardConfig as part
     * of that actionConfig.  If actionConfig is null, the forwardConfig
     * will be processed as a global forward.</p>
     *
     * @param forwardConfig The forward to check.
     * @param moduleConfig  The config for the current module.
     * @param actionConfig  If applicable, the config for the current action.
     * @return The forward config using the correct class as determined by the
     *         config's ancestor and its own overridden value.
     * @throws UnavailableException if an instance of the forward config class
     *                              cannot be created.
     * @throws ServletException     on class creation error
     */
protected ForwardConfig processForwardConfigClass(ForwardConfig forwardConfig, ModuleConfig moduleConfig, ActionConfig actionConfig) throws ServletException {
    String ancestor = forwardConfig.getExtends();
    if (ancestor == null) {
        // Nothing to do, then
        return forwardConfig;
    }
    // Make sure that this config is of the right class
    ForwardConfig baseConfig = null;
    if (actionConfig != null) {
        // Look for this in the actionConfig
        baseConfig = actionConfig.findForwardConfig(ancestor);
    }
    if (baseConfig == null) {
        // Either this is a forwardConfig that inherits a global config,
        //  or actionConfig is null
        baseConfig = moduleConfig.findForwardConfig(ancestor);
    }
    if (baseConfig == null) {
        throw new UnavailableException("Unable to find " + "forward '" + ancestor + "' to extend.");
    }
    // Was our forwards's class overridden already?
    if (forwardConfig.getClass().equals(ActionForward.class)) {
        // Ensure that our forward is using the correct class
        if (!baseConfig.getClass().equals(forwardConfig.getClass())) {
            // Replace the config with an instance of the correct class
            ForwardConfig newForwardConfig = null;
            String baseConfigClassName = baseConfig.getClass().getName();
            try {
                newForwardConfig = (ForwardConfig) RequestUtils.applicationInstance(baseConfigClassName);
                // copy the values
                BeanUtils.copyProperties(newForwardConfig, forwardConfig);
            } catch (Exception e) {
                handleCreationException(baseConfigClassName, e);
            }
            // replace forwardConfig with newForwardConfig
            if (actionConfig != null) {
                actionConfig.removeForwardConfig(forwardConfig);
                actionConfig.addForwardConfig(newForwardConfig);
            } else {
                // this is a global forward
                moduleConfig.removeForwardConfig(forwardConfig);
                moduleConfig.addForwardConfig(newForwardConfig);
            }
            forwardConfig = newForwardConfig;
        }
    }
    return forwardConfig;
}

Example 57 with UnavailableException

use of javax.servlet.UnavailableException in project sonarqube by SonarSource.

the class ActionServlet method processExceptionConfigClass.

/**
     * <p>Checks if the current exceptionConfig is using the correct class
     * based on the class of its configuration ancestor. If actionConfig is
     * provided, then this method will process the exceptionConfig as part
     * of that actionConfig.  If actionConfig is null, the exceptionConfig
     * will be processed as a global forward.</p>
     *
     * @param exceptionConfig The config to check.
     * @param moduleConfig    The config for the current module.
     * @param actionConfig  If applicable, the config for the current action.
     * @return The exception config using the correct class as determined by
     *         the config's ancestor and its own overridden value.
     * @throws ServletException if an instance of the exception config class
     *                          cannot be created.
     */
protected ExceptionConfig processExceptionConfigClass(ExceptionConfig exceptionConfig, ModuleConfig moduleConfig, ActionConfig actionConfig) throws ServletException {
    String ancestor = exceptionConfig.getExtends();
    if (ancestor == null) {
        // Nothing to do, then
        return exceptionConfig;
    }
    // Make sure that this config is of the right class
    ExceptionConfig baseConfig = null;
    if (actionConfig != null) {
        baseConfig = actionConfig.findExceptionConfig(ancestor);
    }
    if (baseConfig == null) {
        // This means either there's no actionConfig anyway, or the
        // ancestor is not defined within the action.
        baseConfig = moduleConfig.findExceptionConfig(ancestor);
    }
    if (baseConfig == null) {
        throw new UnavailableException("Unable to find " + "exception config '" + ancestor + "' to extend.");
    }
    // Was our config's class overridden already?
    if (exceptionConfig.getClass().equals(ExceptionConfig.class)) {
        // Ensure that our config is using the correct class
        if (!baseConfig.getClass().equals(exceptionConfig.getClass())) {
            // Replace the config with an instance of the correct class
            ExceptionConfig newExceptionConfig = null;
            String baseConfigClassName = baseConfig.getClass().getName();
            try {
                newExceptionConfig = (ExceptionConfig) RequestUtils.applicationInstance(baseConfigClassName);
                // copy the values
                BeanUtils.copyProperties(newExceptionConfig, exceptionConfig);
            } catch (Exception e) {
                handleCreationException(baseConfigClassName, e);
            }
            // replace exceptionConfig with newExceptionConfig
            if (actionConfig != null) {
                actionConfig.removeExceptionConfig(exceptionConfig);
                actionConfig.addExceptionConfig(newExceptionConfig);
            } else {
                moduleConfig.removeExceptionConfig(exceptionConfig);
                moduleConfig.addExceptionConfig(newExceptionConfig);
            }
            exceptionConfig = newExceptionConfig;
        }
    }
    return exceptionConfig;
}

Example 58 with UnavailableException

use of javax.servlet.UnavailableException in project sonarqube by SonarSource.

the class ActionServlet method init.

/**
     * <p>Initialize this servlet.  Most of the processing has been factored
     * into support methods so that you can override particular functionality
     * at a fairly granular level.</p>
     *
     * @throws ServletException if we cannot configure ourselves correctly
     */
public void init() throws ServletException {
    final String configPrefix = "config/";
    final int configPrefixLength = configPrefix.length() - 1;
    // to the developer
    try {
        initInternal();
        initOther();
        initServlet();
        initChain();
        getServletContext().setAttribute(Globals.ACTION_SERVLET_KEY, this);
        initModuleConfigFactory();
        // Initialize modules as needed
        ModuleConfig moduleConfig = initModuleConfig("", config);
        initModuleMessageResources(moduleConfig);
        initModulePlugIns(moduleConfig);
        initModuleFormBeans(moduleConfig);
        initModuleForwards(moduleConfig);
        initModuleExceptionConfigs(moduleConfig);
        initModuleActions(moduleConfig);
        moduleConfig.freeze();
        Enumeration names = getServletConfig().getInitParameterNames();
        while (names.hasMoreElements()) {
            String name = (String) names.nextElement();
            if (!name.startsWith(configPrefix)) {
                continue;
            }
            String prefix = name.substring(configPrefixLength);
            moduleConfig = initModuleConfig(prefix, getServletConfig().getInitParameter(name));
            initModuleMessageResources(moduleConfig);
            initModulePlugIns(moduleConfig);
            initModuleFormBeans(moduleConfig);
            initModuleForwards(moduleConfig);
            initModuleExceptionConfigs(moduleConfig);
            initModuleActions(moduleConfig);
            moduleConfig.freeze();
        }
        this.initModulePrefixes(this.getServletContext());
        this.destroyConfigDigester();
    } catch (UnavailableException ex) {
        throw ex;
    } catch (Throwable t) {
        // The follow error message is not retrieved from internal message
        // resources as they may not have been able to have been
        // initialized
        log.error("Unable to initialize Struts ActionServlet due to an " + "unexpected exception or error thrown, so marking the " + "servlet as unavailable.  Most likely, this is due to an " + "incorrect or missing library dependency.", t);
        throw new UnavailableException(t.getMessage());
    }
}

Example 59 with UnavailableException

use of javax.servlet.UnavailableException in project sonarqube by SonarSource.

the class TestActionServlet method notestProcessForwardConfigClassError.

/**
     * Make sure the code throws the correct exception when it can't create an
     * instance of the base config's custom class.
     */
public void notestProcessForwardConfigClassError() throws Exception {
    ForwardConfig customBase = new CustomForwardConfigArg("success", "/success.jsp");
    moduleConfig.addForwardConfig(customBase);
    ForwardConfig customSub = new ActionForward();
    customSub.setName("failure");
    customSub.setExtends("success");
    moduleConfig.addForwardConfig(customSub);
    try {
        actionServlet.processForwardConfigClass(customSub, moduleConfig, null);
        fail("Exception should be thrown");
    } catch (UnavailableException e) {
    // success
    } catch (Exception e) {
        fail("Unexpected exception thrown.");
    }
}

Example 60 with UnavailableException

use of javax.servlet.UnavailableException in project sonarqube by SonarSource.

the class TestActionServlet method testInitModuleExceptionConfigsNullFormType.

/**
     * Test that initModuleExceptionConfigs throws an exception when a handler
     * with a null key is present.
     */
public void testInitModuleExceptionConfigsNullFormType() throws ServletException {
    ExceptionConfig handler = new ExceptionConfig();
    handler.setType("java.lang.NullPointerException");
    moduleConfig.addExceptionConfig(handler);
    try {
        actionServlet.initModuleExceptionConfigs(moduleConfig);
        fail("An exception should've been thrown here.");
    } catch (UnavailableException e) {
    // success
    } catch (Exception e) {
        fail("Unrecognized exception thrown: " + e);
    }
}