@Override
public String getHeaderField(final String field) {
final List<String> values = headers.get(field);
final StringBuilder sb = new StringBuilder();
for (final String v : values) sb.append(v).append(';');
return sb.substring(0, sb.length() - 1);
}
/**
* Returns a string representation of all found arguments.
*
* @param args array with arguments
* @return string representation
*/
static String foundArgs(final Value[] args) {
// compose found arguments
final StringBuilder sb = new StringBuilder();
for (final Value v : args) {
if (sb.length() != 0) sb.append(", ");
sb.append(v instanceof Jav ? Util.className(((Jav) v).toJava()) : v.seqType());
}
return sb.toString();
}
@Override
public final String toString() {
final StringBuilder sb = new StringBuilder();
if (root != null) sb.append(root);
for (final Expr s : steps) {
if (sb.length() != 0) sb.append(s instanceof Bang ? " ! " : "/");
sb.append(s);
}
return sb.toString();
}
/**
* Parses and returns a string result.
*
* @param input input string or {@code null} if invalid
* @param cmd referring command; if specified, the result must not be empty
* @return string result or {@code null}
* @throws QueryException query exception
*/
private String finish(final StringBuilder input, final Cmd cmd) throws QueryException {
if (input != null && input.length() != 0) return input.toString();
if (cmd != null) throw help(null, cmd);
return null;
}
