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/* Generated by AspectJ version 1.0.5 */
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package org.apache.cactus.server;
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import java.net.URLDecoder;
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import org.apache.cactus.util.ChainedRuntimeException;
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/**
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* All prupose utility methods for manipulating the Servlet API.
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*
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* @author <a href="mailto:vmassol@apache.org">Vincent Massol</a>
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*
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* @version $Id: ServletUtil.java,v 1.2 2002/07/21 12:09:16 vmassol Exp $
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*/
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public class ServletUtil {
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/**
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* A substitute method for <code>HttpServletRequest.getParameter()</code>.
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* Contrary to <code>getParameter()</code>, this method does not
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* access the request input stream (only the query string of the url).
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*
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* Note: We use this method internally to retrieve Cactus parameters passed
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* by the client side. The issue with <code>getParameter()</code> is that
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* if you use it, then you cannot call <code>getReader()</code> or
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* <code>getInputStream()</code> (see the Servlet spec). However, if we
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* want to allow for testing code that uses these 2 methods (and we do !)
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* we need to use this method to get the internal Cactus parameters.
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*
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* @param theQueryString the query string to parse
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* @param theParameter the name of the parameter to locate
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* @return the value for theParameter in theQueryString, null if
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* theParameter does not exist and "" if the parameter exists but
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* has no value defined in the query string
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*/
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public static String getQueryStringParameter(String theQueryString, String theParameter) {
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if (theQueryString == null) {
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return ((String)(null));
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}
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String value = null;
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int startIndex = theQueryString.indexOf(theParameter + "=");
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if (startIndex >= 0) {
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startIndex += theParameter.length() + 1;
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int endIndex = theQueryString.indexOf('&', startIndex);
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if (endIndex > startIndex) {
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value = theQueryString.substring(startIndex, endIndex);
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} else if (endIndex == startIndex) {
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value = "";
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} else {
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value = theQueryString.substring(startIndex);
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}
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try {
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value = URLDecoder.decode(value);
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} catch (Exception e) {
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throw new ChainedRuntimeException("Error URL decoding [" + value + "]", e);
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}
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}
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return value;
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}
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/**
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* All prupose utility methods for manipulating the Servlet API.
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*
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* @author <a href="mailto:vmassol@apache.org">Vincent Massol</a>
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*
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* @version $Id: ServletUtil.java,v 1.2 2002/07/21 12:09:16 vmassol Exp $
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*/
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0
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public ServletUtil() {
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0
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super();
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}
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}
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