+ return quoteTerm(null, term, new StringBuilder(term.length()*2)).toString();
+ }
+
+ public static String quoteTerm(String field, String term) {
+ return quoteTerm(field, term,
+ new StringBuilder(
+ term.length()*2
+ + (field != null ? field.length() + 1 : 0))
+ ).toString();
+ }
+
+ public static StringBuilder appendLongTerm(StringBuilder sb, String field, long term) {
+ return sb.append(field).append(':').append(term);
+ }
+
+ public static String longTerm(String field, long term) {
+ return appendLongTerm(new StringBuilder(), field, term).toString();
+ }
+
+ public static StringBuilder appendResourceIdTerm(StringBuilder sb, String field, Resource term) {
+ return appendLongTerm(sb, field, term.getResourceId());
+ }
+
+ public static String resourceIdTerm(String field, Resource term) {
+ return appendLongTerm(new StringBuilder(), field, term.getResourceId()).toString();
+ }
+
+ private static String join(String withString, String... exps) {
+ if (exps.length == 0)
+ return "";
+ StringBuilder sb = new StringBuilder(128);
+ for (int i = 0; i < exps.length - 1; ++i) {
+ sb.append(exps[i]).append(withString);
+ }
+ sb.append(exps[exps.length - 1]);
+ return sb.toString();
+ }
+
+ public static String and(String exp1, String exp2) {
+ return exp1 + " AND " + exp2;
+ }
+
+ public static String and(String... exps) {
+ return join(" AND ", exps);
+ }
+
+ public static String or(String exp1, String exp2) {
+ return exp1 + " OR " + exp2;
+ }
+
+ public static String or(String... exps) {
+ return join(" OR ", exps);
+ }
+
+ public static String idFromGUID(GUID guid) {
+ return guid != null ? guid.indexString() : "";
+ }
+
+ public static String toResourceIdString(Resource r, Collection<Resource> rs) {