private static <T> T toValue(ObjectCodec codec, JsonNode node, Class<T> valueType)
throws JsonProcessingException {
if (node.isPojo()) {
Object pojo = ((POJONode) node).getPojo();
if (valueType.isInstance(pojo)) {
return valueType.cast(pojo);
}
}
return codec.treeToValue(node, valueType);
}
public void testEmbeddedObjectInArray() throws Exception {
TokenBuffer buf = new TokenBuffer(MAPPER);
buf.writeStartArray();
buf.writeObject(MARKER);
buf.writeEndArray();
JsonNode node = MAPPER.readTree(buf.asParser());
buf.close();
assertTrue(node.isArray());
assertEquals(1, node.size());
JsonNode n = node.get(0);
assertTrue(n.isPojo());
assertSame(MARKER, ((POJONode) n).getPojo());
}
/**
* Determines whether or not the given {@link JsonNode} matches the given type. This method is
* limitted to a few java types only and shouldn't be used to determine with great accuracy
* whether or not the types match.
*
* @param node the {@link JsonNode}
* @param type the {@link Class}
* @return true if the types match, false otherwise
*/
protected boolean isMatchingType(JsonNode node, Class<?> type) {
if (node.isNull()) {
return true;
} else if (node.isTextual()) {
return String.class.isAssignableFrom(type);
} else if (node.isNumber()) {
return Number.class.isAssignableFrom(type)
|| short.class.isAssignableFrom(type)
|| int.class.isAssignableFrom(type)
|| long.class.isAssignableFrom(type)
|| float.class.isAssignableFrom(type)
|| double.class.isAssignableFrom(type);
} else if (node.isArray() && type.isArray()) {
return (node.size() > 0) ? isMatchingType(node.get(0), type.getComponentType()) : false;
} else if (node.isArray()) {
return type.isArray() || Collection.class.isAssignableFrom(type);
} else if (node.isBinary()) {
return byte[].class.isAssignableFrom(type)
|| Byte[].class.isAssignableFrom(type)
|| char[].class.isAssignableFrom(type)
|| Character[].class.isAssignableFrom(type);
} else if (node.isBoolean()) {
return boolean.class.isAssignableFrom(type) || Boolean.class.isAssignableFrom(type);
} else if (node.isObject() || node.isPojo()) {
return !type.isPrimitive()
&& !String.class.isAssignableFrom(type)
&& !Number.class.isAssignableFrom(type)
&& !Boolean.class.isAssignableFrom(type);
}
// not sure if it's a matching type
return false;
}