/**
* Compile a single hashCode for the tree of codes linked in a navigation.
*
* @param navigation the navigation
* @param extension the extension of the codes
* @param excludes exludes codes to exclude
* @return the hash
*/
public static int getHashes(CMNavigation navigation, String extension, List excludes) {
List<CMAbstractCode> codes = new ArrayList<>();
if (CSS_EXTENSION.equals(extension)) {
codes = getCodeListForHash(navigation.getCss(), excludes, codes);
} else if (JAVASCRIPT_EXTENSION.equals(extension)) {
codes = getCodeListForHash(navigation.getJavaScript(), excludes, codes);
}
int hash = 0;
for (CMAbstractCode code : codes) {
if (code.getCode() != null) {
hash += code.getCode().hashCode();
}
}
return hash;
}
/** Return only CSS linked to the given navigation that has a data url, excluding IE exclusives */
public static List<CMAbstractCode> getCSSExternalLinks(CMNavigation cmNavigation, List excludes) {
return getFilteredCodeList(
cmNavigation.getCss(), excludes, new ArrayList<CMAbstractCode>(), false, true);
}