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add modfiable variant for Json toMap()

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This commit is contained in:
Jörg Prante 2021-10-18 18:03:01 +02:00
parent 1805b7cd10
commit 9953d28bac
2 changed files with 36 additions and 1 deletions
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9
datastructures-json-tiny/src/main/java/org/xbib/datastructures/json/tiny/Json.java
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@ -56,10 +56,17 @@ public class Json implements DataStructure {
}
public static Map<String, Object> toMap(Reader reader) throws IOException {
Objects.requireNonNull(reader);
StringWriter writer = new StringWriter();
reader.transferTo(writer);
return toMap(writer.toString());
}
public static Map<String, Object> toModifiableMap(Reader reader) throws IOException {
Objects.requireNonNull(reader);
// buffered reader is required for mark() support
try (BufferedReader bufferedReader = new BufferedReader(reader)){
return JsonGenerator.toMap(INSTANCE.createParser().parse(bufferedReader));
return JsonGenerator.toModifiableMap(INSTANCE.createParser().parse(bufferedReader));
}
}

28
datastructures-json-tiny/src/main/java/org/xbib/datastructures/json/tiny/JsonGenerator.java
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@ -34,6 +34,11 @@ public class JsonGenerator implements Generator {
return (Map<String, Object>) internalMap(root);
}
@SuppressWarnings("unchecked")
public static Map<String, Object> toModifiableMap(Node<?> root) {
return (Map<String, Object>) internalModifiableMap(root);
}
private void internalWrite(Node<?> curnode) throws IOException {
if (curnode instanceof ValueNode) {
ValueNode valueNode = (ValueNode) curnode;
@ -79,4 +84,27 @@ public class JsonGenerator implements Generator {
return null;
}
}
private static Object internalModifiableMap(Node<?> curnode) {
if (curnode instanceof ValueNode) {
ValueNode valueNode = (ValueNode) curnode;
return valueNode.get();
} else if (curnode instanceof MapNode) {
MapNode mapNode = (MapNode) curnode;
TinyMap.Builder<String, Object> map = TinyMap.builder();
for (Map.Entry<CharSequence, Node<?>> e : mapNode.get().entrySet()) {
map.put(e.getKey().toString(), internalMap(e.getValue()));
}
return map;
} else if (curnode instanceof ListNode) {
ListNode listNode = (ListNode) curnode;
TinyList.Builder<Object> list = TinyList.builder();
for (Node<?> node : listNode.get()) {
list.add(internalMap(node));
}
return list;
} else {
return null;
}
}
}