/**
* Implements the CFML Function structkeylist
*/
package railo.runtime.functions.struct;
import java.util.Iterator;
import railo.runtime.PageContext;
import railo.runtime.exp.PageException;
import railo.runtime.functions.BIF;
import railo.runtime.op.Caster;
import railo.runtime.type.Collection.Key;
import railo.runtime.type.Struct;
public final class StructKeyList extends BIF {
private static final long serialVersionUID = 6256709521354910213L;
public static String call(PageContext pc , Struct struct) {
return call(pc,struct,",");//KeyImpl.toUpperCaseList(struct.keys(), ",");
}
public static String call(PageContext pc , Struct struct, String delimiter) {
//return KeyImpl.toList(CollectionUtil.keys(struct), delimiter);
if(struct==null) return "";
Iterator<Key> it = struct.keyIterator();
// first
if(!it.hasNext()) return "";
StringBuilder sb=new StringBuilder();
sb.append(it.next().getString());
// rest
if(delimiter.length()==1) {
char c=delimiter.charAt(0);
while(it.hasNext()){
sb.append(c);
sb.append(it.next().getString());
}
}
else {
while(it.hasNext()){
sb.append(delimiter);
sb.append(it.next().getString());
}
}
return sb.toString();
}
@Override
public Object invoke(PageContext pc, Object[] args) throws PageException {
if(args.length==2) return call(pc,Caster.toStruct(args[0]),Caster.toString(args[1]));
return call(pc,Caster.toStruct(args[0]));
}
}