com.alibaba.fastjson2.util

Class KotlinUtils

java.lang.Object

com.alibaba.fastjson2.util.KotlinUtils

public class KotlinUtils
extends java.lang.Object

Since:

2.0.39

Field Summary

Fields

Modifier and Type	Field and Description
private static boolean	kotlin_class_klass_error
private static boolean	kotlin_error
private static java.lang.reflect.Constructor	kotlin_kclass_constructor
private static java.lang.reflect.Method	kotlin_kclass_getConstructors
private static java.lang.reflect.Method	kotlin_kfunction_getParameters
private static java.lang.reflect.Method	kotlin_kparameter_getName
private static java.lang.Class	kotlin_metadata
private static boolean	kotlin_metadata_error
private static java.util.Map<java.lang.Class,java.lang.String[]>	kotlinIgnores
private static boolean	kotlinIgnores_error
private static java.util.logging.Logger	logger
static int	STATE
private static java.util.Set<java.lang.Class<?>>	unresolvedParameterNamesWarned

Constructor Summary

Constructors

Modifier	Constructor and Description
private	KotlinUtils()

Method Summary

Modifier and Type	Method and Description
static void	getConstructor(java.lang.Class<?> clazz, BeanInfo beanInfo) Gets the target constructor and its parameter names of the specified clazz
static void	getConstructor(java.lang.Class<?> clazz, BeanInfo beanInfo, boolean warnUnresolvedParameterNames) Gets the target constructor and its parameter names of the specified clazz
static java.lang.String[]	getKoltinConstructorParameters(java.lang.Class clazz)
static java.lang.reflect.Constructor	getKotlinConstructor(java.lang.reflect.Constructor[] constructors)
static java.lang.reflect.Constructor	getKotlinConstructor(java.lang.reflect.Constructor[] constructors, java.lang.String[] paramNames)
static boolean	isKotlin(java.lang.Class clazz)
static boolean	isKotlinIgnore(java.lang.Class clazz, java.lang.String methodName)
(package private) static boolean	warnParameterNamesUnresolved(java.lang.Class<?> clazz, int state, int creatorParams, java.lang.String[] createParameterNames) Logs a warning, at most once per class, when a Kotlin class has constructor parameters whose names could not be resolved — either because kotlin-reflect is not on the classpath or because it failed at runtime.

Methods inherited from class java.lang.Object

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

Field Detail

STATE

public static final int STATE

kotlin_metadata

private static volatile java.lang.Class kotlin_metadata

kotlin_metadata_error

private static volatile boolean kotlin_metadata_error

kotlin_class_klass_error

private static volatile boolean kotlin_class_klass_error

kotlin_kclass_constructor

private static volatile java.lang.reflect.Constructor kotlin_kclass_constructor

kotlin_kclass_getConstructors

private static volatile java.lang.reflect.Method kotlin_kclass_getConstructors

kotlin_kfunction_getParameters

private static volatile java.lang.reflect.Method kotlin_kfunction_getParameters

kotlin_kparameter_getName

private static volatile java.lang.reflect.Method kotlin_kparameter_getName

kotlin_error

private static volatile boolean kotlin_error

kotlinIgnores

private static volatile java.util.Map<java.lang.Class,java.lang.String[]> kotlinIgnores

kotlinIgnores_error

private static volatile boolean kotlinIgnores_error

logger

private static final java.util.logging.Logger logger

unresolvedParameterNamesWarned

private static final java.util.Set<java.lang.Class<?>> unresolvedParameterNamesWarned

Constructor Detail

KotlinUtils

private KotlinUtils()

Method Detail

getConstructor

public static void getConstructor(java.lang.Class<?> clazz,
                                  BeanInfo beanInfo)

Gets the target constructor and its parameter names of the specified clazz

Parameters:

clazz - the specified class for search

getConstructor

public static void getConstructor(java.lang.Class<?> clazz,
                                  BeanInfo beanInfo,
                                  boolean warnUnresolvedParameterNames)

Gets the target constructor and its parameter names of the specified clazz

Parameters:

clazz - the specified class for search

warnUnresolvedParameterNames - whether to log a warning when the constructor has parameters but their names could not be resolved, which makes deserialization silently fall back to default values

warnParameterNamesUnresolved

static boolean warnParameterNamesUnresolved(java.lang.Class<?> clazz,
                                            int state,
                                            int creatorParams,
                                            java.lang.String[] createParameterNames)

Logs a warning, at most once per class, when a Kotlin class has constructor parameters whose names could not be resolved — either because kotlin-reflect is not on the classpath or because it failed at runtime. Without the names, deserialization silently loses field values.

Returns:

true if a warning was logged for this call

isKotlin

public static boolean isKotlin(java.lang.Class clazz)

getKotlinConstructor

public static java.lang.reflect.Constructor getKotlinConstructor(java.lang.reflect.Constructor[] constructors)

getKotlinConstructor

public static java.lang.reflect.Constructor getKotlinConstructor(java.lang.reflect.Constructor[] constructors,
                                                                 java.lang.String[] paramNames)

getKoltinConstructorParameters

public static java.lang.String[] getKoltinConstructorParameters(java.lang.Class clazz)

isKotlinIgnore

public static boolean isKotlinIgnore(java.lang.Class clazz,
                                     java.lang.String methodName)