Examples of com.fasterxml.jackson.databind.JsonNode

com.fasterxml.jackson.databind.JsonNode
Base class for all JSON nodes, which form the basis of JSON Tree Model that Jackson implements. One way to think of these nodes is to consider them similar to DOM nodes in XML DOM trees.
As a general design rule, most accessors ("getters") are included in this base class, to allow for traversing structure without type casts. Most mutators, however, need to be accessed through specific sub-classes (such as ObjectNode and ArrayNode). This seems sensible because proper type information is generally available when building or modifying trees, but less often when reading a tree (newly built from parsed JSON content).
Actual concrete sub-classes can be found from package {@link com.fasterxml.jackson.databind.node}.

        if (!userRequest.admin) {
            return forbidden();
        }
        User userToEdit = User.findById(id);


        JsonNode node = request().body().asJson();


        if (node != null && node.get("description") != null && !node.get("description").equals("null")) {
            String description = node.get("description").asText();
            userToEdit.description = description;
            userToEdit.save();
            return ok();
        }  else {
            Map<String, List<String>> errors = new HashMap<String, List<String>>();

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    public static Result submitUsers() {
        User userRequest = getLoggedUser();
        if (!userRequest.admin) {
            return forbidden();
        }
        JsonNode node = request().body().asJson();
        Iterator<Map.Entry<String, JsonNode>> iteratorMails = node.fields();
        while (iteratorMails.hasNext()) {
            Map.Entry<String, JsonNode> entry = iteratorMails.next();
            String mail = entry.getKey();
            boolean admin = entry.getValue().asBoolean();
            User user = User.findByEmail(mail);

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    public static Result mailing(String status) {
        return mailing(Proposal.Status.fromValue(status));
    }


    public static Result mailing(Proposal.Status status) {
        JsonNode body = request().body().asJson();
        String subjet = body.get("subject").asText();
        String mailMarkdown = body.get("mail").asText();


        PegDownProcessor pegDownProcessor = new PegDownProcessor();
        String mailHtml = pegDownProcessor.markdownToHtml(mailMarkdown);


        Set<String> mailsOfSpeakers = new HashSet<String>();

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    public static Result saveComment(Long idProposal) throws MalformedURLException {
        User user = getLoggedUser();
        Proposal proposal = Proposal.find.byId(idProposal);


        JsonNode node = request().body().asJson();
        String commentForm = null;
        boolean privateComment = false;
        if (node != null && node.get("comment") != null && !node.get("comment").equals("null")) {
            commentForm = node.get("comment").asText();
            if (user.admin && node.get("private") != null) {
                privateComment = node.get("private").asBoolean();
            }
        } else {
            Map<String, List<String>> errors = new HashMap<String, List<String>>();
            errors.put("comment", Collections.singletonList(Messages.get("error.required")));
            return badRequest(toJson(errors));

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    public static Result saveReponse(Long idProposal, Long idComment) throws MalformedURLException {
        User user = getLoggedUser();
        Proposal proposal = Proposal.find.byId(idProposal);
        Comment question = Comment.find.byId(idComment);


        JsonNode node = request().body().asJson();
        String commentForm = null;
        boolean privateComment = false;
        Logger.debug("nose : {}", node.asText());
        if (node != null && node.get("comment") != null && !node.get("comment").equals("null")) {
            commentForm = node.get("comment").asText();
            if (user.admin && node.get("private") != null) {
                privateComment = node.get("private").asBoolean();
            }
        } else {
            Map<String, List<String>> errors = new HashMap<String, List<String>>();
            errors.put("commentR", Collections.singletonList(Messages.get("error.required")));
            return badRequest(toJson(errors));

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    public static Result editComment(Long idProposal, Long idComment) throws MalformedURLException {
        User user = getLoggedUser();
        Proposal proposal = Proposal.find.byId(idProposal);
        Comment question = Comment.find.byId(idComment);


        JsonNode node = request().body().asJson();
        String commentForm = null;
        Logger.debug("nose : {}", node.asText());
        if (node != null && node.get("comment") != null && !node.get("comment").equals("null")) {
            commentForm = node.get("comment").asText();
        } else {
            Map<String, List<String>> errors = new HashMap<String, List<String>>();
            errors.put("commentE", Collections.singletonList(Messages.get("error.required")));
            return badRequest(toJson(errors));
        }

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            return forbidden();
        }


        Proposal proposal = Proposal.find.byId(idProposal);


        JsonNode node = request().body().asJson();


        Proposal.Status newStatus = Proposal.Status.fromValue(node.get("status").asText());


        if (proposal.statusProposal != newStatus) {
            proposal.statusProposal = newStatus;


            proposal.save();

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            for (String name : PathUtils.elements(path)) {
                tree = tree.addChild(name);
            }


            ObjectMapper mapper = new ObjectMapper();
            JsonNode node = mapper.readTree(request.getInputStream());
            if (node.isObject()) {
                post(node, tree);
                root.commit();
                doGet(request, response);
            } else {
                response.sendError(HttpServletResponse.SC_BAD_REQUEST);

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    private static void post(JsonNode node, Tree tree) {
        Iterator<Entry<String, JsonNode>> iterator = node.fields();
        while (iterator.hasNext()) {
            Entry<String, JsonNode> entry = iterator.next();
            String name = entry.getKey();
            JsonNode value = entry.getValue();
            if (value.isObject()) {
                if (tree.hasProperty(name)) {
                    tree.removeProperty(name);
                }
                Tree child = tree.getChild(name);
                if (!child.exists()) {
                    child = tree.addChild(name);
                }
                post(value, child);
            } else {
                Tree child = tree.getChild(name);
                if (child.exists()) {
                    child.remove();
                }
                if (value.isNull()) {
                    tree.removeProperty(name);
                } else if (value.isBoolean()) {
                    tree.setProperty(name, value.asBoolean());
                } else if (value.isLong()) {
                    tree.setProperty(name, value.asLong());
                } else if (value.isDouble()) {
                    tree.setProperty(name, value.asDouble());
                } else if (value.isBigDecimal()) {
                    tree.setProperty(name, value.decimalValue());
                } else {
                    tree.setProperty(name, value.asText());
                }
            }
        }
    }

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        assertThat(node.get("string-property").asText()).isEqualTo("string-value");
    }


    @Test
    public void strings_are_unwrapped() {
        JsonNode node = using(JACKSON_TREE_CONFIGURATION).parse(JSON_DOCUMENT).read("$.string-property");
        String unwrapped = using(JACKSON_TREE_CONFIGURATION).parse(JSON_DOCUMENT).read("$.string-property", String.class);


        assertThat(unwrapped).isEqualTo("string-value");
        assertThat(unwrapped).isEqualTo(node.asText());
    }

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