com.microsoft.azure.sdk.iot.deps.util

Class Tools

java.lang.Object

com.microsoft.azure.sdk.iot.deps.util.Tools

public class Tools
extends Object

Collection of static helper functions

Constructor Summary

Constructors

Constructor and Description
Tools()

Method Summary

Modifier and Type	Method and Description
static void	appendJsonAttribute(StringBuilder strBuilder, String name, String value, Boolean isQuoted, Boolean isLast) Helper function to properly craft Json string of key-value pair
static boolean	areEqual(Object a, Object b) Equality check for objects that accounts for null value comparisons.
static long	getNumberValueFromJsonObject(javax.json.JsonObject jsonObject, String key) Helper function to get numeric value from a JsonObject
static String	getValueFromJsonObject(javax.json.JsonObject jsonObject, String key) Helper function to get a value from the given JsonObject if the key name exists
static String	getValueFromJsonString(javax.json.JsonString jsonString) Helper function to get trim the leading and trailing parenthesis from a Json string if they exists
static String	getValueStringByKey(Map map, String keyName) Helper function to get a value from the given Map if the key name exists
static Boolean	isNullOrEmpty(String value) Helper function to check if the input string is null or empty
static Boolean	isNullOrWhiteSpace(String value) Helper function to check if the input string is null or contains only whitespace(s)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Tools

public Tools()

Method Detail

isNullOrEmpty

public static Boolean isNullOrEmpty(String value)

Helper function to check if the input string is null or empty

Parameters:

value - The string to check

Returns:

The value true if the input string is empty or null

isNullOrWhiteSpace

public static Boolean isNullOrWhiteSpace(String value)

Helper function to check if the input string is null or contains only whitespace(s)

Parameters:

value - The string to check

Returns:

The value true if the input string is empty or contains only whitespace(s)

getValueStringByKey

public static String getValueStringByKey(Map map,
                                         String keyName)

Helper function to get a value from the given Map if the key name exists

Parameters:

map - The Map object to get the value from

keyName - The name of the key

Returns:

The value of the given key if exists otherwise empty string

getValueFromJsonObject

public static String getValueFromJsonObject(javax.json.JsonObject jsonObject,
                                            String key)

Helper function to get a value from the given JsonObject if the key name exists

Parameters:

jsonObject - The JsonObject object to get the value from

key - The name of the key

Returns:

The value of the given key if exists otherwise empty string

getValueFromJsonString

public static String getValueFromJsonString(javax.json.JsonString jsonString)

Helper function to get trim the leading and trailing parenthesis from a Json string if they exists

Parameters:

jsonString - The JsonString to trim

Returns:

The trimmed string

getNumberValueFromJsonObject

public static long getNumberValueFromJsonObject(javax.json.JsonObject jsonObject,
                                                String key)

Helper function to get numeric value from a JsonObject

Parameters:

jsonObject - The JsonObject object to get the value from

key - The name of the key

Returns:

The numeric value

appendJsonAttribute

public static void appendJsonAttribute(StringBuilder strBuilder,
                                       String name,
                                       String value,
                                       Boolean isQuoted,
                                       Boolean isLast)

Helper function to properly craft Json string of key-value pair

Parameters:

strBuilder - The StringBuilder to work on

name - The name of the key

value - The value of the key

isQuoted - If true leading and trailing quotes will be added

isLast - If false trailing comma will added

areEqual

public static boolean areEqual(Object a,
                               Object b)

Equality check for objects that accounts for null value comparisons. If both objects are null, this will return false. Both objects must have .equals(...) implemented correctly for this method to work properly.

Parameters:

a - the first object

b - the seconds object

Returns:

if the two are equal