// Copyright (c) 2013-2014, Webit Team. All Rights Reserved.
package webit.script.resolvers.impl;
import java.util.Collection;
import java.util.List;
import webit.script.exceptions.ScriptRuntimeException;
import webit.script.resolvers.GetResolver;
import webit.script.resolvers.SetResolver;
import webit.script.util.StringUtil;
/**
*
* @author Zqq
*/
public class ListResolver implements GetResolver, SetResolver {
public Class getMatchClass() {
return Collection.class;
}
public Object get(Object object, Object property) {
if (property instanceof Number) {
try {
return ((List) object).get(((Number) property).intValue());
} catch (IndexOutOfBoundsException e) {
throw new ScriptRuntimeException(StringUtil.concat("index out of bounds:", property));
}
}
if ("size".equals(property)) {
return ((List) object).size();
}
if ("isEmpty".equals(property)) {
return ((List) object).isEmpty();
}
throw new ScriptRuntimeException(StringUtil.concat("Invalid property or can't read: java.util.List#", property));
}
@SuppressWarnings("unchecked")
public void set(Object object, Object property, Object value) {
if (property instanceof Number) {
final int index;
final int size;
final List list;
if ((index = ((Number) property).intValue())
>= (size = (list = (List) object).size())) {
for (int i = index - size; i != 0; i--) {
list.add(null);
}
list.add(value);
return;
} else {
list.set(index, value);
return;
}
}
throw new ScriptRuntimeException(StringUtil.concat("Invalid property or can't write: java.util.List#", property));
}
}