Example usage for com.fasterxml.jackson.databind.node NullNode getInstance

Introduction

In this page you can find the example usage for com.fasterxml.jackson.databind.node NullNode getInstance.

Prototype

public static NullNode getInstance() 

Source Link

Usage

From source file:com.baasbox.commands.UsersResource.java

protected JsonNode changePassword(JsonNode command, JsonCallback unused) throws CommandException {
    String username = getUsername(command);
    JsonNode newPasswordJson = getParamField(command, "newPassword");
    if (newPasswordJson == null || !newPasswordJson.isTextual())
        throw new CommandExecutionException(command, "invalid new password: " + newPasswordJson);
    String newPassword = newPasswordJson.asText();
    try {//  w w  w .j  ava  2s . co  m
        UserService.changePassword(username, newPassword);
    } catch (UserNotFoundException | OpenTransactionException | SqlInjectionException e) {
        throw new CommandExecutionException(command, ExceptionUtils.getMessage(e), e);
    }
    return NullNode.getInstance();
}

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From source file:com.almende.eve.state.ConcurrentJsonFileState.java

@Override
public synchronized JsonNode locPut(final String key, JsonNode value) {
    JsonNode result = null;/*from w ww  .jav a 2  s .  c o m*/
    try {
        openFile();
        read();
        if (value == null) {
            value = NullNode.getInstance();
        }
        result = properties.put(key, value);
        write();
    } catch (final Exception e) {
        LOG.log(Level.WARNING, "", e);
    }
    closeFile();
    return result;
}

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From source file:com.almende.eve.state.file.ConcurrentJsonFileState.java

@Override
@JsonIgnore//from  w w w  .j av a  2 s.  co m
public JsonNode get(final String key) {
    JsonNode result = NullNode.getInstance();
    try {
        openFile();
        read();
        result = properties.get(key);
    } catch (final IllegalStateException e) {
        LOG.log(Level.WARNING, "Couldn't handle Statefile: " + e.getMessage(), e);
    } catch (final Exception e) {
        LOG.log(Level.WARNING, "", e);
    }
    closeFile();
    return result;
}

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From source file:org.modeshape.web.jcr.rest.handler.ItemHandlerImpl.java

private Object convertToJcrValues(Node node, Object value, boolean encoded) throws RepositoryException {
    if (value == NullNode.getInstance() || (value instanceof ArrayNode && ((ArrayNode) value).size() == 0)) {
        // for any null value of empty json array, return an empty array which will mean the property will be removed
        return null;
    }//from   w ww .  ja v  a 2  s .  c  o  m
    org.modeshape.jcr.api.ValueFactory valueFactory = (org.modeshape.jcr.api.ValueFactory) node.getSession()
            .getValueFactory();
    if (value instanceof ArrayNode) {
        ArrayNode jsonValues = (ArrayNode) value;
        Value[] values = new Value[jsonValues.size()];

        for (int i = 0; i < jsonValues.size(); i++) {
            if (encoded) {
                values[i] = createBinaryValue(jsonValues.get(i).asText(), valueFactory);
            } else {
                values[i] = RestHelper.jsonValueToJCRValue(jsonValues.get(i), valueFactory);
            }
        }
        return values;
    }

    return encoded ? createBinaryValue(value.toString(), valueFactory)
            : RestHelper.jsonValueToJCRValue(value, valueFactory);
}

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From source file:com.almende.eve.state.ConcurrentJsonFileState.java

@Override
public synchronized boolean locPutIfUnchanged(final String key, final JsonNode newVal, JsonNode oldVal) {
    boolean result = false;
    try {/*from   w  w  w .  j  a  va2 s .c  om*/
        openFile();
        read();

        JsonNode cur = NullNode.getInstance();
        if (properties.containsKey(key)) {
            cur = properties.get(key);
        }
        if (oldVal == null) {
            oldVal = NullNode.getInstance();
        }

        // Poor mans equality as some Numbers are compared incorrectly: e.g.
        // IntNode versus LongNode
        if (oldVal.equals(cur) || oldVal.toString().equals(cur.toString())) {
            properties.put(key, newVal);
            write();
            result = true;
        }
    } catch (final Exception e) {
        LOG.log(Level.WARNING, "", e);
        // Don't let users loop if exception is thrown. They
        // would get into a deadlock....
        result = true;
    }
    closeFile();
    return result;
}

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From source file:com.almende.eve.state.file.ConcurrentJsonFileState.java

@Override
public JsonNode locPut(final String key, JsonNode value) {
    try {// w  w w .j  a va 2  s . c o  m
        openFile();
        read();
        if (value == null) {
            value = NullNode.getInstance();
        }
        properties.put(key, value);
        write();
    } catch (final IllegalStateException e) {
        LOG.log(Level.WARNING, "Couldn't handle Statefile: " + e.getMessage(), e);
    } catch (final Exception e) {
        LOG.log(Level.WARNING, "", e);
    }
    closeFile();
    return value;
}

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From source file:org.apache.usergrid.java.client.model.UsergridEntity.java

public void putProperty(@NotNull final String name, @Nullable final JsonNode value) {
    UsergridEntityProperties entityProperty = UsergridEntityProperties.fromString(name);
    if (entityProperty != null && !entityProperty.isMutableForEntity(this)) {
        return;//from w w w.j a v  a  2 s  . c  o  m
    }

    JsonNode valueNode = value;
    if (valueNode == null) {
        valueNode = NullNode.getInstance();
    }
    this.updatePropertiesWithMap(Collections.singletonMap(name, valueNode));
}

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From source file:com.almende.eve.state.file.ConcurrentJsonFileState.java

@Override
public boolean locPutIfUnchanged(final String key, final JsonNode newVal, JsonNode oldVal) {
    boolean result = false;
    try {//  w  w w  . j a v a2 s . c  om
        openFile();
        read();

        JsonNode cur = NullNode.getInstance();
        if (properties.containsKey(key)) {
            cur = properties.get(key);
        }
        if (oldVal == null) {
            oldVal = NullNode.getInstance();
        }

        // Poor mans equality as some Numbers are compared incorrectly: e.g.
        // IntNode versus LongNode
        if (oldVal.equals(cur) || oldVal.toString().equals(cur.toString())) {
            properties.put(key, newVal);
            write();
            result = true;
        }
    } catch (final IllegalStateException e) {
        LOG.log(Level.WARNING, "Couldn't handle Statefile: " + e.getMessage(), e);
    } catch (final Exception e) {
        LOG.log(Level.WARNING, "", e);
        // Don't let users loop if exception is thrown. They
        // would get into a deadlock....
        result = true;
    }
    closeFile();
    return result;
}

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From source file:com.unboundid.scim2.common.utils.JsonUtils.java

/**
 * Gets a single value (node) from an ObjectNode at the supplied path.
 * It is expected that there will only be one matching path.  If there
 * are multiple matching paths (for example a path with filters can
 * match multiple nodes), an exception will be thrown.
 *
 * For example:// ww  w . j  a  v a  2  s  . c  om
 *   With an ObjectNode representing:
 *     {
 *       "name":"Bob",
 *       "favoriteColors":["red","green","blue"]
 *     }
 *
 *   getValue(Path.fromString("name")
 *   will return a TextNode containing "{@code Bob}"
 *
 *   getValue(Path.fromString("favoriteColors"))
 *   will return an ArrayNode containing TextNodes with the following
 *   values - "{@code red}", "{@code green}", and "{@code blue}".
 *
 * @param path The path to the attributes whose values to retrieve.
 * @param node the ObjectNode to find the path in.
 * @return the node located at the path, or a NullNode.
 * @throws ScimException throw in case of errors.
 */
public static JsonNode getValue(final Path path, final ObjectNode node) throws ScimException {
    GatheringNodeVisitor visitor = new GatheringNodeVisitor(false);
    traverseValues(visitor, node, 0, path);
    if (visitor.values.isEmpty()) {
        return NullNode.getInstance();
    } else {
        return visitor.values.get(0);
    }
}

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From source file:com.baasbox.commands.UsersResource.java

@Override
protected JsonNode post(JsonNode command) throws CommandException {
    try {//w  w w . j  a v a 2  s.co m
        JsonNode params = command.get(ScriptCommand.PARAMS);
        if (params == null || !params.isObject())
            throw new CommandParsingException(command, "missing parameters");
        String username = getUsername(command);
        JsonNode password = params.get("password");
        if (password == null || !password.isTextual())
            throw new CommandParsingException(command, "missing required password");
        JsonNode id = params.get(BaasBoxPrivateFields.ID.toString());
        String idString = null;
        if (!(id instanceof NullNode) && id != null && !id.isTextual())
            throw new CommandParsingException(command, "ID must be a string");
        if (!(id instanceof NullNode) && id != null && id.isTextual() && StringUtils.isBlank(id.asText()))
            throw new CommandParsingException(command,
                    "ID cannot be empty or cannot contains only whitespaces");
        if (!(id instanceof NullNode) && id != null && id.isTextual())
            idString = id.asText();
        JsonNode roleNode = params.get("role");
        String role;
        if (roleNode == null) {
            role = DefaultRoles.REGISTERED_USER.getORole().getName();
        } else if (roleNode.isTextual()) {
            role = roleNode.asText();
        } else {
            throw new CommandParsingException(command, "role parameter is not valid");
        }
        if (!RoleService.exists(role)) {
            throw new CommandExecutionException(command, "required role does not exists: " + role);
        }
        JsonNode userVisible = params.get(UserDao.ATTRIBUTES_VISIBLE_ONLY_BY_THE_USER);
        JsonNode friendsVisible = params.get(UserDao.ATTRIBUTES_VISIBLE_BY_FRIENDS_USER);
        JsonNode registeredVisible = params.get(UserDao.ATTRIBUTES_VISIBLE_BY_REGISTERED_USER);
        JsonNode anonymousVisible = params.get(UserDao.ATTRIBUTES_VISIBLE_BY_ANONYMOUS_USER);

        ODocument user = UserService.signUp(username, password.asText(), new Date(), role, anonymousVisible,
                userVisible, friendsVisible, registeredVisible, false, idString);
        String userNode = JSONFormats.prepareDocToJson(user, JSONFormats.Formats.USER);
        return Json.mapper().readTree(userNode);
    } catch (InvalidJsonException | IOException e) {
        throw new CommandExecutionException(command, "invalid json", e);
    } catch (UserAlreadyExistsException | EmailAlreadyUsedException e) {
        return NullNode.getInstance();
    }
}

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