ly.count.sdk.java.internal

Class Utils

java.lang.Object

ly.count.sdk.java.internal.Utils

public class Utils
extends java.lang.Object

Utility class

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Utils.Base64

Field Summary

Fields

Modifier and Type	Field and Description
static char[]	BASE_16
static java.lang.String	CRLF
protected static Log.Module	L
static java.lang.String	UTF8
protected static Utils	utils

Constructor Summary

Constructors

Constructor and Description
Utils()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	_reflectiveCall(java.lang.String className, java.lang.Object instance, java.lang.String methodName, java.lang.Object... args)
java.lang.Object	_reflectiveCallStrict(java.lang.String className, java.lang.Object instance, java.lang.String methodName, java.lang.Object... args)
boolean	_reflectiveClassExists(java.lang.String cls) Check whether class exists in default class loader.
<T> T	_reflectiveGetField(java.lang.Object object, java.lang.Class cls, java.lang.String name)
java.lang.Boolean	_reflectiveSetField(java.lang.Object object, java.lang.Class cls, java.lang.String name, java.lang.Object value)
static boolean	contains(java.lang.String string, java.lang.String part)
static java.lang.String	digestHex(java.lang.String digestName, java.lang.String string) Calculate digest (SHA-1, SHA-256, etc.) hash of the string provided
static java.lang.reflect.Field	findField(java.lang.Class cls, java.lang.String name)
static java.lang.String	hex(byte[] bytes) Get hexadecimal string representation of a byte array
static boolean	isEmpty(java.lang.String str) StringUtils.isEmpty replacement.
static boolean	isEqual(java.lang.Object a, java.lang.Object b)
static boolean	isNotEmpty(java.lang.String str) StringUtils.isNotEmpty replacement.
static boolean	isNotEqual(java.lang.Object a, java.lang.Object b)
static <T> java.lang.String	join(java.util.Collection<T> objects, java.lang.String separator) Joins objects with a separator
static byte[]	readStream(java.io.InputStream stream) Read stream into a byte array
static java.lang.Object	reflectiveCall(java.lang.String className, java.lang.Object instance, java.lang.String methodName, java.lang.Object... args) Reflective method call encapsulation.
static java.lang.Object	reflectiveCallStrict(java.lang.String className, java.lang.Object instance, java.lang.String methodName, java.lang.Object... args) Reflective method call encapsulation with argument types specified explicitly before each parameter.
static boolean	reflectiveClassExists(java.lang.String cls)
static java.util.List<java.lang.reflect.Field>	reflectiveGetDeclaredFields(java.lang.Class<?> cls, boolean goUp) Get fields declared by class and its superclasses filtering test-related which contain $ in their name
static java.util.List<java.lang.reflect.Field>	reflectiveGetDeclaredFields(java.util.List<java.lang.reflect.Field> list, java.lang.Class<?> cls, boolean goUp)
static <T> T	reflectiveGetField(java.lang.Class cls, java.lang.String name)
static <T> T	reflectiveGetField(java.lang.Object object, java.lang.String name)
static java.lang.Boolean	reflectiveSetField(java.lang.Class cls, java.lang.String name, java.lang.Object value)
static java.lang.Boolean	reflectiveSetField(java.lang.Object object, java.lang.String name, java.lang.Object value)
static java.lang.String	urldecode(java.lang.String str) URLDecoder wrapper to remove try-catch
static java.lang.String	urlencode(java.lang.String str) URLEncoder wrapper to remove try-catch

Methods inherited from class java.lang.Object

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

Field Detail

L

protected static final Log.Module L

utils

protected static final Utils utils

UTF8

public static final java.lang.String UTF8

See Also:

Constant Field Values

CRLF

public static final java.lang.String CRLF

See Also:

Constant Field Values

BASE_16

public static final char[] BASE_16

Constructor Detail

Utils

public Utils()

Method Detail

join

public static <T> java.lang.String join(java.util.Collection<T> objects,
                                        java.lang.String separator)

Joins objects with a separator

Parameters:

objects - objects to join

separator - separator to use

Returns:

resulting string

urldecode

public static java.lang.String urldecode(java.lang.String str)

URLDecoder wrapper to remove try-catch

Parameters:

str - string to decode

Returns:

url-decoded str

reflectiveGetDeclaredFields

public static java.util.List<java.lang.reflect.Field> reflectiveGetDeclaredFields(java.lang.Class<?> cls,
                                                                                  boolean goUp)

Get fields declared by class and its superclasses filtering test-related which contain $ in their name

Parameters:

cls - class to check

goUp - whether to return parent class fields as well

Returns:

list of declared fields

reflectiveGetDeclaredFields

public static java.util.List<java.lang.reflect.Field> reflectiveGetDeclaredFields(java.util.List<java.lang.reflect.Field> list,
                                                                                  java.lang.Class<?> cls,
                                                                                  boolean goUp)

findField

public static java.lang.reflect.Field findField(java.lang.Class cls,
                                                java.lang.String name)
                                         throws java.lang.NoSuchFieldException

Throws:

java.lang.NoSuchFieldException

isEmpty

public static boolean isEmpty(java.lang.String str)

StringUtils.isEmpty replacement.

Parameters:

str - string to check

Returns:

true if null or empty string, false otherwise

isNotEmpty

public static boolean isNotEmpty(java.lang.String str)

StringUtils.isNotEmpty replacement.

Parameters:

str - string to check

Returns:

false if null or empty string, true otherwise

isNotEqual

public static boolean isNotEqual(java.lang.Object a,
                                 java.lang.Object b)

isEqual

public static boolean isEqual(java.lang.Object a,
                              java.lang.Object b)

contains

public static boolean contains(java.lang.String string,
                               java.lang.String part)

urlencode

public static java.lang.String urlencode(java.lang.String str)

URLEncoder wrapper to remove try-catch

Parameters:

str - string to encode

Returns:

url-encoded str

reflectiveClassExists

public static boolean reflectiveClassExists(java.lang.String cls)

_reflectiveClassExists

public boolean _reflectiveClassExists(java.lang.String cls)

Check whether class exists in default class loader.

Parameters:

cls - Class name to check

Returns:

true if class exists, false otherwise

reflectiveCall

public static java.lang.Object reflectiveCall(java.lang.String className,
                                              java.lang.Object instance,
                                              java.lang.String methodName,
                                              java.lang.Object... args)

Reflective method call encapsulation.

Parameters:

className - class to call method in

instance - instance to call on, null for static methods

methodName - method name

args - optional arguments to pass to that method

Returns:

false in case of failure, method result otherwise

_reflectiveCall

public java.lang.Object _reflectiveCall(java.lang.String className,
                                        java.lang.Object instance,
                                        java.lang.String methodName,
                                        java.lang.Object... args)

reflectiveCallStrict

public static java.lang.Object reflectiveCallStrict(java.lang.String className,
                                                    java.lang.Object instance,
                                                    java.lang.String methodName,
                                                    java.lang.Object... args)

Reflective method call encapsulation with argument types specified explicitly before each parameter.

Parameters:

className - class to call method in

instance - instance to call on, null for static methods

methodName - method name

args - optional arguments to pass to that method in format [arg1 class, arg1 value, arg2 class, arg2 value]

Returns:

false in case of failure, method result otherwise

_reflectiveCallStrict

public java.lang.Object _reflectiveCallStrict(java.lang.String className,
                                              java.lang.Object instance,
                                              java.lang.String methodName,
                                              java.lang.Object... args)

reflectiveSetField

public static java.lang.Boolean reflectiveSetField(java.lang.Object object,
                                                   java.lang.String name,
                                                   java.lang.Object value)

reflectiveSetField

public static java.lang.Boolean reflectiveSetField(java.lang.Class cls,
                                                   java.lang.String name,
                                                   java.lang.Object value)

_reflectiveSetField

public java.lang.Boolean _reflectiveSetField(java.lang.Object object,
                                             java.lang.Class cls,
                                             java.lang.String name,
                                             java.lang.Object value)

reflectiveGetField

public static <T> T reflectiveGetField(java.lang.Object object,
                                       java.lang.String name)

reflectiveGetField

public static <T> T reflectiveGetField(java.lang.Class cls,
                                       java.lang.String name)

_reflectiveGetField

public <T> T _reflectiveGetField(java.lang.Object object,
                                 java.lang.Class cls,
                                 java.lang.String name)

digestHex

public static java.lang.String digestHex(java.lang.String digestName,
                                         java.lang.String string)

Calculate digest (SHA-1, SHA-256, etc.) hash of the string provided

Parameters:

digestName - digest name like "SHA-256", must be supported by Java, see MessageDigest

string - string to hash

Returns:

hash of the string or null in case of error

hex

public static java.lang.String hex(byte[] bytes)

Get hexadecimal string representation of a byte array

Parameters:

bytes - array of bytes to convert

Returns:

hex string of the byte array in lower case

readStream

public static byte[] readStream(java.io.InputStream stream)

Read stream into a byte array

Parameters:

stream - input to read

Returns:

stream contents or null in case of error