zhouyanming created WW-4151:
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Summary: add getter methods for org.apache.struts2.components.Form
Key: WW-4151
URL: https://issues.apache.org/jira/browse/WW-4151
Project: Struts 2
Issue Type: Improvement
Reporter: zhouyanming
I'm trying implement my own org.apache.struts2.components.UrlRenderer to
replace default org.apache.struts2.components.ServletUrlRenderer
{code:java}
public void renderFormUrl(Form formComponent) {
String namespace = formComponent.determineNamespace(
formComponent.namespace,
formComponent.getStack(),
formComponent.request);
String action;
if (formComponent.action != null) {
action = formComponent.findString(formComponent.action);
} else {
// no action supplied? ok, then default to the current
request
// (action or general URL)
ActionInvocation ai = (ActionInvocation)
formComponent.getStack()
.getContext().get(ActionContext.ACTION_INVOCATION);
if (ai != null) {
action = ai.getProxy().getActionName();
namespace = ai.getProxy().getNamespace();
} else {
// hmm, ok, we need to just assume the current
URL cut down
String uri =
formComponent.request.getRequestURI();
action = uri.substring(uri.lastIndexOf('/'));
}
}
Map actionParams = null;
if (action != null && action.indexOf("?") > 0) {
String queryString =
action.substring(action.indexOf("?") + 1);
actionParams = urlHelper.parseQueryString(queryString,
false);
action = action.substring(0, action.indexOf("?"));
}
ActionMapping nameMapping = actionMapper
.getMappingFromActionName(action);
String actionName = nameMapping.getName();
String actionMethod = nameMapping.getMethod();
final ActionConfig actionConfig = formComponent.configuration
.getRuntimeConfiguration().getActionConfig(namespace,
actionName);
if (actionConfig != null) {
ActionMapping mapping = new ActionMapping(actionName,
namespace,
actionMethod, formComponent.parameters);
String result = urlHelper
.buildUrl(formComponent.actionMapper
.getUriFromActionMapping(mapping),
formComponent.request,
formComponent.response,
actionParams, null,
formComponent.includeContext,
true);
formComponent.addParameter("action", result);
// let's try to get the actual action class and name
// this can be used for getting the list of validators
formComponent.addParameter("actionName", actionName);
try {
Class clazz = formComponent.objectFactory
.getClassInstance(actionConfig.getClassName());
formComponent.addParameter("actionClass",
clazz);
} catch (ClassNotFoundException e) {
// this is OK, we'll just move on
}
formComponent.addParameter("namespace", namespace);
// if the name isn't specified, use the action name
if (formComponent.name == null) {
formComponent.addParameter("name", actionName);
}
// if the id isn't specified, use the action name
if (formComponent.getId() == null && actionName !=
null) {
formComponent.addParameter("id",
formComponent.escape(actionName));
}
} else if (action != null) {
// Since we can't find an action alias in the
configuration, we just
// assume the action attribute supplied is the path to
be used as
// the URI this form is submitting to.
// Warn user that the specified namespace/action combo
// was not found in the configuration.
if (namespace != null && LOG.isWarnEnabled()) {
LOG.warn("No configuration found for the
specified action: '"
+ actionName
+ "' in namespace: '"
+ namespace
+ "'. Form action defaulting to
'action' attribute's literal value.");
}
String result = urlHelper.buildUrl(action,
formComponent.request,
formComponent.response, null, null,
formComponent.includeContext, true);
formComponent.addParameter("action", result);
// namespace: cut out anything between the start and
the last /
int slash = result.lastIndexOf('/');
if (slash != -1) {
formComponent.addParameter("namespace",
result.substring(0, slash));
} else {
formComponent.addParameter("namespace", "");
}
// name/id: cut out anything between / and . should be
the id and
// name
String id = formComponent.getId();
if (id == null) {
slash = result.lastIndexOf('/');
int dot = result.indexOf('.', slash);
if (dot != -1) {
id = result.substring(slash + 1, dot);
} else {
id = result.substring(slash + 1);
}
formComponent.addParameter("id",
formComponent.escape(id));
}
}
// WW-1284
// evaluate if client-side js is to be enabled. (if validation
// interceptor does allow validation eg. method is not filtered
out)
formComponent.evaluateClientSideJsEnablement(actionName,
namespace,
actionMethod);
}
{code}
all fields are protected and only have setter method,can not access those
fields or methods to build form action.
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