Example usage for javax.servlet FilterConfig getInitParameter

Introduction

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

Prototype

public String getInitParameter(String name);

Source Link

Document

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

Usage

From source file:org.glite.slcs.acl.AccessControlListFactory.java

/**
 * Creates a new instance of AccessControlList implementation.
 * /*w w w.  j av a2 s. co m*/
 * @param filterConfig
 *            The FilterConfig containing the ACLImplementation parameter.
 * @return A new instance of the implmenting AccessControlList
 * @throws SLCSException
 *             If the instantiation of the AccessControlList
 *             implementation failed.
 */
public static AccessControlList newInstance(FilterConfig filterConfig) throws SLCSException {

    // get implementing class name
    String className = filterConfig.getInitParameter("ACLImplementation");
    // check null or empty
    if (className == null || className.equals("")) {
        throw new SLCSConfigurationException("Filter parameter ACLImplementation is missing or empty");
    }
    LOG.info("AccessControlList implementation=" + className);
    // instantiate new
    AccessControlList impl = null;
    try {
        impl = (AccessControlList) Class.forName(className).newInstance();
        impl.init(filterConfig);
    } catch (InstantiationException e) {
        LOG.error("Can not instantiate class: " + className, e);
        throw new SLCSException("Can not instantiate class: " + className, e);
    } catch (IllegalAccessException e) {
        LOG.error("Illegal access for class: " + className, e);
        throw new SLCSException("Illegal access for class: " + className, e);
    } catch (ClassNotFoundException e) {
        LOG.error("Implementation not found: " + className, e);
        throw new SLCSException("Implementation not found: " + className, e);
    }
    return impl;

}

From source file:org.xchain.framework.filter.MultipartFormDataFilter.java

protected static int getIntInitParameter(FilterConfig filterConfig, String parameterName, int defaultValue)
        throws ServletException {
    int value = defaultValue;
    String parameterValue = filterConfig.getInitParameter(parameterName);
    if (parameterValue != null) {
        try {// ww w  . jav  a 2s. c o  m
            value = Integer.parseInt(parameterValue);
        } catch (NumberFormatException nfe) {
            throw new ServletException("Could not parse " + parameterName + " parameter for filter "
                    + filterConfig.getFilterName() + ".", nfe);
        }
    }
    return value;
}

From source file:org.xchain.framework.filter.MultipartFormDataFilter.java

protected static long getLongInitParameter(FilterConfig filterConfig, String parameterName, long defaultValue)
        throws ServletException {
    long value = defaultValue;
    String parameterValue = filterConfig.getInitParameter(parameterName);
    if (parameterValue != null) {
        try {/*from  w  ww  .  ja  va 2s.  c o m*/
            value = Long.parseLong(parameterValue);
        } catch (NumberFormatException nfe) {
            throw new ServletException("Could not parse " + parameterName + " parameter for filter "
                    + filterConfig.getFilterName() + ".", nfe);
        }
    }
    return value;
}

From source file:org.jdesigner.platform.web.filter.FilterHelpers.java

/**
 * Gets the forwardTo init parameter that is common to many filters.
 * /*from   w  w w  .  j  a va 2 s.c om*/
 * @param filterConfig
 *            The filterConfig instance associated with the filter.
 * @return The value of the forwardTo init param.
 */
public static String initForwardTo(FilterConfig filterConfig) {

    String forwardTo = filterConfig.getInitParameter("forwardTo");
    log.info("forwardTo  = " + forwardTo);
    return forwardTo;

}

From source file:org.jdesigner.platform.web.filter.FilterHelpers.java

/**
 * Gets the redirectTo init parameter that is common to many filters.
 * //w w  w  . j  av a 2 s .c  o  m
 * @param filterConfig
 *            The filterConfig instance associated with the filter.
 * @return The value of the redirectTo init param.
 */
public static String initRedirectTo(FilterConfig filterConfig) {

    String redirectTo = filterConfig.getInitParameter("redirectTo");
    log.info("redirectTo = " + redirectTo);
    return redirectTo;

}

From source file:org.xchain.framework.filter.MultipartFormDataFilter.java

protected static String getStringInitParameter(FilterConfig filterConfig, String parameterName,
        String defaultValue) throws ServletException {
    // get the value.
    String value = defaultValue;//from ww w .j  a v  a  2s  .  co m
    String parameterValue = filterConfig.getInitParameter(parameterName);
    if (parameterValue != null) {
        value = parameterValue;
    }

    return value;
}

From source file:org.apache.ambari.server.security.authorization.AmbariAuthorizationFilter.java

/**
 * Get the parameter value from the given servlet filter configuration.
 *
 * @param filterConfig  the servlet configuration
 * @param parameterName the parameter name
 * @param defaultValue  the default value
 * @return the parameter value or the default value if not set
 *///from w  ww  .  ja  v  a  2  s.  c o  m
private static String getParameterValue(FilterConfig filterConfig, String parameterName, String defaultValue) {

    String value = filterConfig.getInitParameter(parameterName);
    if (value == null || value.length() == 0) {
        value = filterConfig.getServletContext().getInitParameter(parameterName);
    }
    return value == null || value.length() == 0 ? defaultValue : value;
}

From source file:com.zz.globalsession.filter.AbstractGlobalSessionFilter.java

protected static String getConfigValue(FilterConfig config, String keyName) {
    String fromInitParam = config.getInitParameter(keyName);
    if (fromInitParam != null) {
        return fromInitParam;
    }/*w  w  w. jav  a2 s . co  m*/
    return System.getProperty(keyName);
}

From source file:org.jdesigner.platform.web.filter.FilterHelpers.java

/**
 * This is a common function used by a number of filters to get the init
 * parameter that describes the path list.
 * /*from   w  w  w  .  j av a 2  s.  c  o  m*/
 * @param filterName
 *            The name of the filter calling this function. This is for
 *            logging purposes.
 * @param filterConfig
 *            The filterConfig instance associated with the filter.
 * @return The pathSpec value.
 * @throws ServletException
 *             If anything goes wrong.
 */
public static String initPathSpec(String filterName, FilterConfig filterConfig) throws ServletException {

    // Get the pathSpec init parameter.
    String pathSpec = filterConfig.getInitParameter("pathSpec");
    if (pathSpec != null) {
        if (!pathSpec.equalsIgnoreCase("include") && !pathSpec.equalsIgnoreCase("exclude")) {
            String es = filterName + " could not initialize " + "because pathSpec init parameter "
                    + "was not a valid value (must be 'include' or 'exclude')";
            log.error(es);
            throw new ServletException(es);
        }
    }
    log.info("pathSpec = " + pathSpec);
    return pathSpec;

}

From source file:org.jdesigner.platform.web.filter.FilterHelpers.java

/**
 * This is a common function used by a number of filters to get the list of
 * paths the filter will function or not function on.
 * /*from ww w . j  a va 2 s  .c om*/
 * @param filterName
 *            The name of the filter calling this function. This is for
 *            logging purposes.
 * @param filterConfig
 *            The filterConfig instance associated with the filter.
 * @return The list of paths configured for the filter.
 */
public static ArrayList initPathList(String filterName, FilterConfig filterConfig) {

    // Get the comma-separater list of paths pathList init parameter.
    String csvPathList = filterConfig.getInitParameter("pathList");
    ArrayList al = new ArrayList();
    if (csvPathList != null) {
        log.info("csvPathList = " + csvPathList);
        StringTokenizer st = new StringTokenizer(csvPathList, ",");
        // Parse the CSV.
        while (st.hasMoreTokens()) {
            String s = st.nextToken();
            StringBuffer sb = new StringBuffer(s.length() + 10);
            // We need to replace any wildcard characters with a suitable
            // regex.
            for (int i = 0; i < s.length(); i++) {
                if (s.charAt(i) == '*') {
                    sb.append(".*");
                } else {
                    sb.append(s.charAt(i));
                }
            }
            // Modified paths can now be added to the collection.
            al.add(sb.toString());
        }
    }
    log.info("pathList = " + al);
    return al;

}