Example usage for javax.servlet ServletContext getInitParameter

Introduction

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

Prototype

public String getInitParameter(String name);

Source Link

Document

Returns a String containing the value of the named context-wide initialization parameter, or null if the parameter does not exist.

Usage

From source file:MyServlet.java

public void init(ServletConfig config) throws ServletException {
    super.init(config);
    ServletContext context = getServletContext();
    dbName = context.getInitParameter("name");
    dbPassword = context.getInitParameter("password");

}

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From source file:com.onlinebusiness.dataaccess.DataFacadeFactory.java

public CRUDFacade getDataFacadeInstance(ServletContext ctx) {
    String contextParamValue = ctx.getInitParameter("projectStage");
    if (contextParamValue.equals("dev")) {
        return crudFacade;
    } else {//from  w ww.  ja  va2 s  . co  m
        return null;
    }

}

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From source file:org.geoserver.platform.GeoServerResourceLoader.java

/**
 * Determines the location of the geoserver data directory based on the following lookup
 * mechanism:/*from w w w .  j a va 2s. c o m*/
 *  
 * 1) Java environment variable
 * 2) Servlet context variable
 * 3) System variable 
 *
 * For each of these, the methods checks that
 * 1) The path exists
 * 2) Is a directory
 * 3) Is writable
 * 
 * @param servContext The servlet context.
 * @return String The absolute path to the data directory, or <code>null</code> if it could not
 * be found. 
 */
public static String lookupGeoServerDataDirectory(ServletContext servContext) {

    final String[] typeStrs = { "Java environment variable ", "Servlet context parameter ",
            "System environment variable " };

    String requireFileVar = "GEOSERVER_REQUIRE_FILE";
    requireFile(System.getProperty(requireFileVar), typeStrs[0] + requireFileVar);
    requireFile(servContext.getInitParameter(requireFileVar), typeStrs[1] + requireFileVar);
    requireFile(System.getenv(requireFileVar), typeStrs[2] + requireFileVar);

    final String[] varStrs = { "GEOSERVER_DATA_DIR", "GEOSERVER_DATA_ROOT" };

    String dataDirStr = null;
    String msgPrefix = null;

    // Loop over variable names
    for (int i = 0; i < varStrs.length && dataDirStr == null; i++) {

        // Loop over variable access methods
        for (int j = 0; j < typeStrs.length && dataDirStr == null; j++) {
            String value = null;
            String varStr = varStrs[i];
            String typeStr = typeStrs[j];

            // Lookup section
            switch (j) {
            case 0:
                value = System.getProperty(varStr);
                break;
            case 1:
                value = servContext.getInitParameter(varStr);
                break;
            case 2:
                value = System.getenv(varStr);
                break;
            }

            if (value == null || value.equalsIgnoreCase("")) {
                LOGGER.finer("Found " + typeStr + varStr + " to be unset");
                continue;
            }

            // Verify section
            File fh = new File(value);

            // Being a bit pessimistic here
            msgPrefix = "Found " + typeStr + varStr + " set to " + value;

            if (!fh.exists()) {
                LOGGER.warning(msgPrefix + " , but this path does not exist");
                continue;
            }
            if (!fh.isDirectory()) {
                LOGGER.warning(msgPrefix + " , which is not a directory");
                continue;
            }
            if (!fh.canWrite()) {
                LOGGER.warning(msgPrefix + " , which is not writeable");
                continue;
            }

            // Sweet, we can work with this
            dataDirStr = value;
        }
    }

    // fall back to embedded data dir
    if (dataDirStr == null) {
        dataDirStr = servContext.getRealPath("/data");
        LOGGER.info("Falling back to embedded data directory: " + dataDirStr);
    }

    return dataDirStr;
}

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From source file:org.jruby.rack.mock.WebUtils.java

/**
 * Set a system property to the web application root directory.
 * The key of the system property can be defined with the "webAppRootKey"
 * context-param in {@code web.xml}. Default is "webapp.root".
 * <p>Can be used for tools that support substition with {@code System.getProperty}
 * values, like log4j's "${key}" syntax within log file locations.
 * @param servletContext the servlet context of the web application
 * @throws IllegalStateException if the system property is already set,
 * or if the WAR file is not expanded//from   w w w. j  a v a  2 s . c  om
 * @see #WEB_APP_ROOT_KEY_PARAM
 * @see #DEFAULT_WEB_APP_ROOT_KEY
 * @see WebAppRootListener
 * @see Log4jWebConfigurer
 */
public static void setWebAppRootSystemProperty(ServletContext servletContext) throws IllegalStateException {
    Assert.notNull(servletContext, "ServletContext must not be null");
    String root = servletContext.getRealPath("/");
    if (root == null) {
        throw new IllegalStateException(
                "Cannot set web app root system property when WAR file is not expanded");
    }
    String param = servletContext.getInitParameter(WEB_APP_ROOT_KEY_PARAM);
    String key = (param != null ? param : DEFAULT_WEB_APP_ROOT_KEY);
    String oldValue = System.getProperty(key);
    if (oldValue != null && !StringUtils.pathEquals(oldValue, root)) {
        throw new IllegalStateException("Web app root system property already set to different value: '" + key
                + "' = [" + oldValue + "] instead of [" + root + "] - "
                + "Choose unique values for the 'webAppRootKey' context-param in your web.xml files!");
    }
    System.setProperty(key, root);
    servletContext.log("Set web app root system property: '" + key + "' = [" + root + "]");
}

---

From source file:org.opensubsystems.core.util.servlet.WebUtils.java

/**
 * Get names and values for all the init parameters from the specified 
 * context./*from  ww  w . j  ava 2 s  .  c  om*/
 * 
 * @param  scContext - context from where to retrieve the init parameters
 * @return Properties - names and values of the init parameters or empty
 *                      properties if no init parameters are specified
 */
public static Properties getInitParameters(ServletContext scContext) {
    Properties prpSettings = new Properties();
    String strName;
    String strValue;

    for (Enumeration paramNames = scContext.getInitParameterNames(); paramNames.hasMoreElements();) {
        strName = (String) paramNames.nextElement();
        strValue = scContext.getInitParameter(strName);
        prpSettings.put(strName, strValue);
    }

    return prpSettings;
}

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From source file:org.glassfish.jersey.server.spring.SpringWebApplicationInitializer.java

@Override
public void onStartup(ServletContext sc) throws ServletException {
    if (sc.getInitParameter(PAR_NAME_CTX_CONFIG_LOCATION) == null) {
        LOGGER.config(LocalizationMessages.REGISTERING_CTX_LOADER_LISTENER());
        sc.setInitParameter(PAR_NAME_CTX_CONFIG_LOCATION, "classpath:applicationContext.xml");
        sc.addListener("org.springframework.web.context.ContextLoaderListener");
        sc.addListener("org.springframework.web.context.request.RequestContextListener");
    } else {//from ww  w.  ja  v a2s  .  c  o m
        LOGGER.config(LocalizationMessages.SKIPPING_CTX_LODAER_LISTENER_REGISTRATION());
    }
}

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From source file:org.lightadmin.logging.configurer.LoggingConfigurerSettings.java

public LoggingConfigurerSettings(ServletContext servletContext) {
    this.applicationBaseUrl = servletContext.getInitParameter(LIGHT_CONFIGURER_BASE_URL);
    this.demoMode = Boolean.valueOf(servletContext.getInitParameter(LIGHT_CONFIGURER_DEMO_MODE));
    setBackToSiteUrl(servletContext.getInitParameter(LIGHT_CONFIGURER_BACK_TO_SITE_URL));
}

---

From source file:it.geosolutions.geoserver.jms.configuration.ApplicationProperties.java

/**
 * Looks up for a named string property into the following contexts (in order):
 * <ul>//from ww  w . j av a 2 s .  co m
 * <li>System Property</li>
 * <li>web.xml init parameters</li>
 * <li>Environment variable</li>
 * </ul>
 * and returns the first non null, non empty value found.
 * @param propertyName The property name to be searched
 * @param context The servlet context used to look into web.xml (may be null)
 * @return The property value, or null if not found
 */
public static String getProperty(String propertyName, ServletContext context) {
    // TODO: this code comes from the data directory lookup and it's useful as 
    // long as we don't provide a way for the user to manually inspect the three contexts
    // (when trying to debug why the variable they thing they've set, and so on, see also
    // http://jira.codehaus.org/browse/GEOS-2343
    // Once that is fixed, we can remove the logging code that makes this method more complex
    // than strictly necessary

    final String[] typeStrs = { "Java environment variable ", "Servlet context parameter ",
            "System environment variable " };

    String result = null;
    for (int j = 0; j < typeStrs.length; j++) {
        // Lookup section
        switch (j) {
        case 0:
            result = System.getProperty(propertyName);
            break;
        case 1:
            if (context != null) {
                result = context.getInitParameter(propertyName);
            }
            break;
        case 2:
            result = System.getenv(propertyName);
            break;
        }

        if (result == null || result.equalsIgnoreCase("")) {
            LOGGER.finer("Found " + typeStrs[j] + ": '" + propertyName + "' to be unset");
        } else {
            break;
        }
    }

    return result;
}

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From source file:jease.cms.web.servlet.JeaseServletListener.java

protected void initLocale(ServletContext context) {
    String localeCode = context.getInitParameter(Names.JEASE_DEFAULT_LOCALE);
    if (StringUtils.isNotBlank(localeCode)) {
        Locale locale = new Locale(localeCode);
        I18N.load(locale);//  www  .  j av  a 2s . c  om
        context.setAttribute("org.zkoss.web.preferred.locale", locale);
    }
}

---

From source file:jease.cms.web.servlet.JeaseServletListener.java

protected void initDatabase(ServletContext context) {
    String databaseName = context.getInitParameter(Names.JEASE_DATABASE_NAME);
    if (databaseName != null) {
        Database.open(databaseName);/*from w  ww  . j  a v a 2 s. com*/
    } else {
        throw new RuntimeException();
    }
}

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