private CompositeDataSupport(SortedMap<String, Object> items, CompositeType compositeType)
throws OpenDataException {
// Check compositeType is not null
//
if (compositeType == null) {
throw new IllegalArgumentException("Argument compositeType cannot be null.");
}
// item names defined in compositeType:
Set<String> namesFromType = compositeType.keySet();
Set<String> namesFromItems = items.keySet();
// This is just a comparison, but we do it this way for a better
// exception message.
if (!namesFromType.equals(namesFromItems)) {
Set<String> extraFromType = new TreeSet<String>(namesFromType);
extraFromType.removeAll(namesFromItems);
Set<String> extraFromItems = new TreeSet<String>(namesFromItems);
extraFromItems.removeAll(namesFromType);
if (!extraFromType.isEmpty() || !extraFromItems.isEmpty()) {
throw new OpenDataException(
"Item names do not match CompositeType: "
+ "names in items but not in CompositeType: "
+ extraFromItems
+ "; names in CompositeType but not in items: "
+ extraFromType);
}
}
// Check each value, if not null, is of the open type defined for the
// corresponding item
for (String name : namesFromType) {
Object value = items.get(name);
if (value != null) {
OpenType<?> itemType = compositeType.getType(name);
if (!itemType.isValue(value)) {
throw new OpenDataException(
"Argument value of wrong type for item "
+ name
+ ": value "
+ value
+ ", type "
+ itemType);
}
}
}
// Initialize internal fields: compositeType and contents
//
this.compositeType = compositeType;
this.contents = items;
}
/**
* Returns the value of the item whose name is <tt>key</tt>.
*
* @throws IllegalArgumentException if <tt>key</tt> is a null or empty String.
* @throws InvalidKeyException if <tt>key</tt> is not an existing item name for this
* <tt>CompositeData</tt> instance.
*/
public Object get(String key) {
if ((key == null) || (key.trim().equals(""))) {
throw new IllegalArgumentException("Argument key cannot be a null or empty String.");
}
if (!contents.containsKey(key.trim())) {
throw new InvalidKeyException(
"Argument key=\""
+ key.trim()
+ "\" is not an existing item name for this CompositeData instance.");
}
return contents.get(key.trim());
}