in core/cocoon-sitemap/cocoon-sitemap-components/src/main/java/org/apache/cocoon/acting/RequestParameterExistsAction.java [77:318]
public Map act( Redirector redirector,
SourceResolver resolver,
Map objectModel,
String source,
Parameters parameters
)
throws Exception {
Request request = ObjectModelHelper.getRequest(objectModel);
HashMap results = new HashMap();
HashMap items = new HashMap();
int wildcards = 0;
// check default parameters for existence
if (this.getLogger().isDebugEnabled()) {
getLogger().debug("checking default parameters");
}
Iterator reqParams = settings.values().iterator();
while (reqParams.hasNext()) {
String paramName = (String) reqParams.next();
StringParts sp = splitParameter(paramName);
if (sp != null) {
// wildcard: special care required (deferred until later)
items.put(new Integer(wildcards++), sp);
if (this.getLogger().isDebugEnabled()) {
getLogger().debug("(default) deferring " + paramName);
}
} else {
String paramValue = request.getParameter(paramName);
if (paramValue == null) {
return null;
}
results.put(paramName, paramValue);
}
}
// check parameters for existence
if (this.getLogger().isDebugEnabled()) {
getLogger().debug("checking sitemap parameters");
}
String params = parameters.getParameter("parameters", null);
if (params != null) {
StringTokenizer st = new StringTokenizer(params);
while (st.hasMoreTokens()) {
String paramName = st.nextToken();
StringParts sp = splitParameter(paramName);
if (sp != null) {
// wildcard: special care required (deferred until later)
items.put(new Integer(wildcards++), sp);
if (this.getLogger().isDebugEnabled()) {
getLogger().debug("deferring " + paramName);
}
} else {
String paramValue = request.getParameter(paramName);
if (paramValue == null) {
return null;
}
results.put(paramName, paramValue);
}
}
}
if (wildcards != 0) {
// special care for parameters with wildcard
//
if (this.getLogger().isDebugEnabled()) {
getLogger().debug("deferred checking for parameters: " + wildcards);
}
// first one
//
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(" checking first");
}
HashMap values = new HashMap();
StringParts sp1 = (StringParts) items.get(new Integer(0));
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(
" Parameter is [" + sp1.prefix + " * " + sp1.pstfix + "] ");
}
Enumeration requestParams = request.getParameterNames();
Boolean dummy = Boolean.TRUE;
while (requestParams.hasMoreElements()) {
String paramName = (String) requestParams.nextElement();
String match = getMatch(paramName, sp1);
if (match != null) {
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(
" value is >"
+ match
+ "< "
+ sp1.prefix.length()
+ " "
+ paramName.length()
+ " "
+ sp1.pstfix.length());
}
values.put(match, dummy);
sp1.count++;
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(
" Parameter "
+ sp1.prefix
+ "*"
+ sp1.pstfix
+ " matches "
+ paramName
+ " ("
+ sp1.count
+ " so far)");
}
String paramValue = request.getParameter(paramName);
if (paramValue == null) {
return null;
}
results.put(paramName, paramValue);
}
}
if (sp1.count == 0) {
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(
" Parameter "
+ sp1.prefix
+ "*"
+ sp1.pstfix
+ " matches "
+ sp1.count);
}
return null;
}
// all other ones
//
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(" checking others");
}
requestParams = request.getParameterNames();
while (requestParams.hasMoreElements()) {
String paramName = (String) requestParams.nextElement();
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(" checking request parameter " + paramName);
}
for (int i = wildcards - 1; i > 0; i--) {
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(" checking against " + i);
}
StringParts sp = (StringParts) items.get(new Integer(i));
String match = getMatch(paramName, sp);
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(
" Parameter is ["
+ sp.prefix
+ " * "
+ sp.pstfix
+ "] ");
}
if (match != null) {
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(
" Parameter "
+ sp.prefix
+ "*"
+ sp.pstfix
+ " matches "
+ paramName
+ " ("
+ sp.count
+ " so far)");
}
if (values.containsKey(match)) {
sp.count++;
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(
" " + paramName + " (verified)");
}
String paramValue = request.getParameter(paramName);
if (paramValue == null) {
return null;
}
results.put(paramName, paramValue);
} else {
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(
"Match "
+ match
+ "not found for "
+ sp1.prefix
+ "*"
+ sp1.pstfix
+ " but for "
+ sp.prefix
+ "*"
+ sp.pstfix);
}
return null;
}
}
}
}
// since we enforce that only matches are counted, that exist for
// the first parameter as well, check if every parameter has an
// equal number of matches.
//
if (this.getLogger().isDebugEnabled()) {
getLogger().debug("checking number of matches");
}
for (int i = wildcards - 1; i > 0; i--) {
StringParts sp = (StringParts) items.get(new Integer(i));
if (sp.count != sp1.count) {
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(
"Found "
+ sp.count
+ " matches for "
+ sp.prefix
+ "*"
+ sp.pstfix
+ " but expected "
+ sp1.count);
}
return null;
} else {
if (this.getLogger().isDebugEnabled()) {
getLogger().debug(
"Found "
+ sp.count
+ " matches for "
+ sp.prefix
+ "*"
+ sp.pstfix
+ " as expected");
}
}
}
}
return Collections.unmodifiableMap(results);
}