public static void setAttribute(
final AttributesContainer state, final String name, final Object value) {
if (name == null) {
throw new IllegalArgumentException();
}
Attribute attribute = null;
for (Attribute attr : state.getAttributes()) {
if (name.equalsIgnoreCase(attr.getName().content())) {
attribute = attr;
break;
}
}
String string = null;
if (value != null) {
string = state.service(MasterConversionService.class).convert(value, String.class);
}
if (string == null) {
if (attribute != null) {
state.getAttributes().remove(attribute);
}
} else {
if (attribute == null) {
attribute = state.getAttributes().insert();
attribute.setName(name);
}
attribute.setValue(string);
}
}
public static Object getAttribute(
final AttributesContainer state, final String name, final Object def) {
if (name == null) {
throw new IllegalArgumentException();
}
Object value = null;
for (Attribute attribute : state.getAttributes()) {
if (name.equalsIgnoreCase(attribute.getName().content())) {
value = attribute.getValue().content();
break;
}
}
if (value != null && def != null && def != String.class) {
value = state.service(MasterConversionService.class).convert(value, def.getClass());
}
if (value == null) {
value = def;
}
return value;
}