String functions on static strings inside <s:if value = ""> - struts2

Question

I am trying to migrate to Struts 2 and I have the following if scriplet that I have to change to

<logic:iterate id="grpItem" collection="<%= impGroupTypeList %>">
    <% if (grpItem.getImpGrpTypCd().trim().equals(impUploadType.trim())){%> 

Answer 1

<s:iterator var="grpItem" value="%{#session.impGroupTypeList}">
                                        <s:if
                                            test='impGrpTypCd.trim().equals(#session.impUploadType.trim())'>
                                            </s:if>