Java Code Examples for com.fasterxml.jackson.core.TreeNode#isArray()

@Override
public Sort deserialize(JsonParser jsonParser,
		DeserializationContext deserializationContext) throws IOException {
	TreeNode treeNode = jsonParser.getCodec().readTree(jsonParser);
	if (treeNode.isArray()) {
		ArrayNode arrayNode = (ArrayNode) treeNode;
		List<Sort.Order> orders = new ArrayList<>();
		for (JsonNode jsonNode : arrayNode) {
			Sort.Order order = new Sort.Order(
					Sort.Direction.valueOf(jsonNode.get("direction").textValue()),
					jsonNode.get("property").textValue());
			orders.add(order);
		}
		return Sort.by(orders);
	}
	return null;
}
 

@Override
public Map<BigInteger, AppliedOperation> deserialize(JsonParser jsonParser,
        DeserializationContext deserializationContext) throws IOException {

    HashMap<BigInteger, AppliedOperation> result = new HashMap<>();

    ObjectCodec codec = jsonParser.getCodec();
    TreeNode rootNode = codec.readTree(jsonParser);

    if (rootNode.isArray()) {
        for (JsonNode node : (ArrayNode) rootNode) {
            result.put(new BigInteger((node.get(0)).asText()),
                    CommunicationHandler.getObjectMapper().treeToValue(node.get(1), AppliedOperation.class));
        }

        return result;
    }

    throw new IllegalArgumentException("JSON Node is not an array.");
}
 

@Override
public List<Pair<AccountName, Long>> deserialize(JsonParser jsonParser,
        DeserializationContext deserializationContext) throws IOException {

    List<Pair<AccountName, Long>> result = new ArrayList<>();

    ObjectCodec codec = jsonParser.getCodec();
    TreeNode rootNode = codec.readTree(jsonParser);

    if (rootNode.isArray()) {
        for (JsonNode node : (ArrayNode) rootNode) {
            // result.put((node.get(0)).asText(), (node.get(0)).asInt());
        }

        return result;
    }

    throw new IllegalArgumentException("JSON Node is not an array.");
}
 

@Override
public List<Pair<String, Long>> deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
        throws IOException {

    List<Pair<String, Long>> result = new ArrayList<>();

    ObjectCodec codec = jsonParser.getCodec();
    TreeNode rootNode = codec.readTree(jsonParser);

    if (rootNode.isArray()) {
        for (JsonNode node : (ArrayNode) rootNode) {
            // result.put((node.get(0)).asText(), (node.get(0)).asInt());
        }

        return result;
    }

    throw new IllegalArgumentException("JSON Node is not an array.");
}
 

@Override
public Map<String, Integer> deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
        throws IOException {

    HashMap<String, Integer> result = new HashMap<>();

    ObjectCodec codec = jsonParser.getCodec();
    TreeNode rootNode = codec.readTree(jsonParser);

    if (rootNode.isArray()) {
        for (JsonNode node : (ArrayNode) rootNode) {
            result.put((node.get(0)).asText(), (node.get(0)).asInt());
        }

        return result;
    }

    throw new IllegalArgumentException("JSON Node is not an array.");
}
 

@Override
public Map<PublicKey, Integer> deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
        throws IOException {

    HashMap<PublicKey, Integer> result = new HashMap<>();

    ObjectCodec codec = jsonParser.getCodec();
    TreeNode rootNode = codec.readTree(jsonParser);

    if (rootNode.isArray()) {
        for (JsonNode node : (ArrayNode) rootNode) {
            PublicKey publicKey = new PublicKey((node.get(0)).asText());
            result.put(publicKey, (node.get(0)).asInt());
        }

        return result;
    }

    throw new IllegalArgumentException("JSON Node is not an array.");
}
 

@Override
public Map<UInteger, AppliedOperation> deserialize(JsonParser jsonParser,
        DeserializationContext deserializationContext) throws IOException {

    HashMap<UInteger, AppliedOperation> result = new HashMap<>();

    ObjectCodec codec = jsonParser.getCodec();
    TreeNode rootNode = codec.readTree(jsonParser);

    if (rootNode.isArray()) {
        for (JsonNode node : (ArrayNode) rootNode) {
            result.put(UInteger.valueOf(node.get(0).asLong()),
                    CommunicationHandler.getObjectMapper().treeToValue(node.get(1), AppliedOperation.class));
        }

        return result;
    }

    throw new IllegalArgumentException("JSON Node is not an array.");
}
 

/**
 * Read bytes into an {@link ArrayNode}.
 *
 * @exception IOException if {@code data} does not contain a valid json object.
 */
public static ArrayNode readArrayNode(byte[] data) throws IOException {
  // Read data into a tree
  TreeNode root = MAPPER.readTree(data);
  // Check that we have an array, because treeToValue won't
  if (root == null || !root.isArray()) {
    throw new IOException("json value is not an array");
  }
  return (ArrayNode) root;
}
 

private void hash(TreeNode node) {
    if (node.isArray()) {
        md.update((byte)'l');
        for (int i = 0; i < node.size(); i++) {
            hash(node.get(i));
        }
        md.update((byte)'e');
    } else if (node.isObject()) {
        String[] fieldNames = new String[node.size()];
        Iterator<String> it = node.fieldNames();
        for (int i=0; i< fieldNames.length; i++) {
            fieldNames[i] = it.next();
        }
        Arrays.sort(fieldNames);
        md.update((byte)'d');
        for (String fName : fieldNames) {
            hash(fName);
            hash(node.get(fName));
        }
        md.update((byte)'e');
    } else if (node.isValueNode()) {
        String val = ((JsonNode)node).textValue();
        if (val != null) {
            hash(val);
        }
    } else {
        throw new IllegalArgumentException(node.toString());
    }
}