Example usage for javax.servlet ServletRequest getParameter

Introduction

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

Prototype

public String getParameter(String name);

Source Link

Document

Returns the value of a request parameter as a String, or null if the parameter does not exist.

Usage

From source file:org.apache.sentry.api.service.thrift.PubSubServlet.java

/**
 * Return parameter on servlet request for the given name
 *
 * @param request: Servlet request//  w ww .j  a va  2  s. c o  m
 * @param name: Name of parameter in servlet request
 * @return Parameter in servlet request for the given name, return null if can't find parameter.
 */
private static String getParameter(ServletRequest request, String name) {
    String s = request.getParameter(name);
    if (s == null) {
        return null;
    }
    s = s.trim();
    return s.isEmpty() ? null : s;
}

From source file:org.punksearch.web.SearchParams.java

public static String getStringValue(ServletRequest request, String paramName) {
    String paramValue = request.getParameter(paramName);
    if (paramValue == null)
        return "";

    //        OMG WTF??? this prevents russian queries!
    /*      try {/*from   ww  w.ja v  a2s  . c o m*/
             paramValue = new String(paramValue.getBytes("ISO-8859-1"), "UTF-8");
          } catch (UnsupportedEncodingException uee) {
             log.warn(uee.getMessage());
          }*/

    return paramValue;
}

From source file:org.apache.hadoop.util.ServletUtil.java

/**
 * Get a parameter from a ServletRequest.
 * Return null if the parameter contains only white spaces.
 */// w  w  w .j  a v a  2 s .  c  om
public static String getParameter(ServletRequest request, String name) {
    String s = request.getParameter(name);
    if (s == null) {
        return null;
    }
    s = s.trim();
    return s.length() == 0 ? null : s;
}

From source file:org.punksearch.web.SearchParams.java

public static Double getDoubleValue(ServletRequest request, String paramName, Double byDefault) {
    String paramValue = request.getParameter(paramName);
    if (paramValue == null || paramValue.equals(""))
        return byDefault;

    return Double.valueOf(paramValue);

}

From source file:org.punksearch.web.SearchParams.java

public static Integer getIntegerValue(ServletRequest request, String paramName, Integer byDefault) {
    String paramValue = request.getParameter(paramName);
    if (paramValue == null || paramValue.equals(""))
        return byDefault;

    return Integer.valueOf(paramValue);

}

From source file:org.punksearch.web.SearchParams.java

public static Boolean getBooleanValue(ServletRequest request, String paramName, Boolean byDefault) {
    String paramValue = request.getParameter(paramName);
    if (paramValue == null || paramValue.equals(""))
        return byDefault;

    return paramValue.equals("true") || paramValue.equals("on");

}

From source file:org.apache.hadoop.util.ServletUtil.java

/**
 * @return a long value as passed in the given parameter, throwing
 * an exception if it is not present or if it is not a valid number.
 *///from  ww  w.  j  a  v a2s  . co  m
public static long parseLongParam(ServletRequest request, String param) throws IOException {
    String paramStr = request.getParameter(param);
    if (paramStr == null) {
        throw new IOException("Invalid request has no " + param + " parameter");
    }

    return Long.parseLong(paramStr);
}

From source file:com.redhat.rhn.frontend.taglibs.list.decorators.PageSizeDecorator.java

/**
 * Returns true if the page size widget was selected
 * @param request the http  servlet request
 * @param listName the name of the list//from   w w  w . j av  a  2s .com
 * @return true if the page size widget was selected
 */
public static boolean pageWidgetSelected(ServletRequest request, String listName) {
    return SELECTED.equals(request.getParameter(makeSelectionLabel(listName)));
}

From source file:org.rhq.enterprise.gui.util.WebUtility.java

public static Integer getResourceGroupId(ServletRequest request) {
    String groupIdString = request.getParameter(ParamConstants.GROUP_ID_PARAM);
    Integer groupId = null;/*from  w  ww  .j av a  2 s.c  o  m*/
    if (groupIdString != null && !groupIdString.equals("")) {
        groupId = Integer.parseInt(groupIdString);
    }

    return groupId;
}

From source file:org.rhq.enterprise.gui.util.WebUtility.java

public static Integer getResourceId(ServletRequest request) {
    String resourceIdString = request.getParameter(ParamConstants.CURRENT_RESOURCE_ID_PARAM);
    if (resourceIdString == null || resourceIdString.equals("")) {
        resourceIdString = request.getParameter(ParamConstants.RESOURCE_ID_PARAM);
    }/*ww w  .  ja  v  a 2 s  . co  m*/
    Integer resourceId = null;
    if (resourceIdString != null && !resourceIdString.equals("")) {
        resourceId = Integer.parseInt(resourceIdString);
    }

    return resourceId;
}