public Restful2ActionMapper() 
{
    	setSlashesInActionNames("true");
}

 public String getIdParameterName() 
{
		return idParameterName;
}

 public ActionMapping getMapping(HttpServletRequest request,
    ConfigurationManager configManager) 
{
    	if (!isSlashesInActionNames()) {
    		throw new IllegalStateException("This action mapper requires the setting 'slashesInActionNames' to be set to 'true'");
    	}
        ActionMapping mapping = super.getMapping(request, configManager);
        if (mapping == null) {
            return null;
        }
        String actionName = mapping.getName();
        String id = null;
        // Only try something if the action name is specified
        if (actionName != null && actionName.length()  > 0) {
            int lastSlashPos = actionName.lastIndexOf('/');
            if (lastSlashPos  > -1) {
                id = actionName.substring(lastSlashPos+1);
            }
            // If a method hasn't been explicitly named, try to guess using ReST-style patterns
            if (mapping.getMethod() == null) {
                if (lastSlashPos == actionName.length() -1) {
                    // Index e.g. foo/
                    if (isGet(request)) {
                        mapping.setMethod("index");
                    // Creating a new entry on POST e.g. foo/
                    } else if (isPost(request)) {
                        mapping.setMethod("create");
                    }
                } else if (lastSlashPos  > -1) {
                    // Viewing the form to create a new item e.g. foo/new
                    if (isGet(request) && "new".equals(id)) {
                        mapping.setMethod("editNew");
                    // Viewing an item e.g. foo/1
                    } else if (isGet(request)) {
                        mapping.setMethod("view");
                    // Removing an item e.g. foo/1
                    } else if (isDelete(request)) {
                        mapping.setMethod("remove");
                    // Updating an item e.g. foo/1    
                    }  else if (isPut(request)) {
                        mapping.setMethod("update");
                    }
                }
                if (idParameterName != null && lastSlashPos  > -1) {
                	actionName = actionName.substring(0, lastSlashPos);
                }
            }
            if (idParameterName != null && id != null) {
                if (mapping.getParams() == null) {
                    mapping.setParams(new HashMap< String, Object >());
                }
                mapping.getParams().put(idParameterName, id);
            }
            // Try to determine parameters from the url before the action name
            int actionSlashPos = actionName.lastIndexOf('/', lastSlashPos - 1);
            if (actionSlashPos  > 0 && actionSlashPos <  lastSlashPos) {
                String params = actionName.substring(0, actionSlashPos);
                HashMap< String,String > parameters = new HashMap< String,String >();
                try {
                    StringTokenizer st = new StringTokenizer(params, "/");
                    boolean isNameTok = true;
                    String paramName = null;
                    String paramValue;
                    while (st.hasMoreTokens()) {
                        if (isNameTok) {
                            paramName = URLDecoder.decode(st.nextToken(), "UTF-8");
                            isNameTok = false;
                        } else {
                            paramValue = URLDecoder.decode(st.nextToken(), "UTF-8");
                            if ((paramName != null) && (paramName.length()  > 0)) {
                                parameters.put(paramName, paramValue);
                            }
                            isNameTok = true;
                        }
                    }
                    if (parameters.size()  > 0) {
                        if (mapping.getParams() == null) {
                            mapping.setParams(new HashMap< String, Object >());
                        }
                        mapping.getParams().putAll(parameters);
                    }
                } catch (Exception e) {
                    LOG.warn("Unable to determine parameters from the url", e);
                }
                mapping.setName(actionName.substring(actionSlashPos+1));
            }
        }
        return mapping;
}

 protected boolean isDelete(HttpServletRequest request) 
{
        if ("delete".equalsIgnoreCase(request.getMethod())) {
            return true;
        } else {
            return isPost(request) && "delete".equalsIgnoreCase(request.getParameter(HTTP_METHOD_PARAM));
        }
}

 protected boolean isGet(HttpServletRequest request) 
{
        return "get".equalsIgnoreCase(request.getMethod());
}

 protected boolean isPost(HttpServletRequest request) 
{
        return "post".equalsIgnoreCase(request.getMethod());
}

 protected boolean isPut(HttpServletRequest request) 
{
        if ("put".equalsIgnoreCase(request.getMethod())) {
            return true;
        } else {
            return isPost(request) && "put".equalsIgnoreCase(request.getParameter(HTTP_METHOD_PARAM));
        }
}

 public  void setIdParameterName(String idParameterName) 
{
		this.idParameterName = idParameterName;
}