Package graphql.schema

Class PropertyFetchingImpl

java.lang.Object

graphql.schema.PropertyFetchingImpl

public class PropertyFetchingImpl
extends Object

A re-usable class that can fetch from POJOs

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	PropertyFetchingImpl.CachedLambdaFunction
private final class	PropertyFetchingImpl.CachedMethod
private static final class	PropertyFetchingImpl.CacheKey
private static class	PropertyFetchingImpl.FastNoSuchMethodException
private static interface	PropertyFetchingImpl.MethodFinder

Field Summary

Fields

Modifier and Type	Field	Description
private final ConcurrentMap<PropertyFetchingImpl.CacheKey,Field>	FIELD_CACHE
private final ConcurrentMap<PropertyFetchingImpl.CacheKey,PropertyFetchingImpl.CachedLambdaFunction>	LAMBDA_CACHE
private static final org.slf4j.Logger	log
private final ConcurrentMap<PropertyFetchingImpl.CacheKey,PropertyFetchingImpl.CachedMethod>	METHOD_CACHE
private final ConcurrentMap<PropertyFetchingImpl.CacheKey,PropertyFetchingImpl.CacheKey>	NEGATIVE_CACHE
private final Class<?>	singleArgumentType
private final AtomicBoolean	USE_LAMBDA_FACTORY
private final AtomicBoolean	USE_NEGATIVE_CACHE
private final AtomicBoolean	USE_SET_ACCESSIBLE

Constructor Summary

Constructors

Constructor	Description
PropertyFetchingImpl(Class<?> singleArgumentType)

Method Summary

Modifier and Type	Method	Description
void	clearReflectionCache()
private Method	findPubliclyAccessibleMethod(PropertyFetchingImpl.CacheKey cacheKey, Class<?> rootClass, String methodName, boolean dfeInUse, boolean allowStaticMethods)	Invoking public methods on package-protected classes via reflection causes exceptions.
private Method	findRecordMethod(PropertyFetchingImpl.CacheKey cacheKey, Class<?> rootClass, String methodName)
private Method	findViaSetAccessible(PropertyFetchingImpl.CacheKey cacheKey, Class<?> aClass, String methodName, boolean dfeInUse)
Object	getPropertyValue(String propertyName, Object object, GraphQLType graphQLType, boolean dfeInUse, Supplier<Object> singleArgumentValue)
private Object	getPropertyViaFieldAccess(PropertyFetchingImpl.CacheKey cacheKey, Object object, String propertyName)
private Object	getPropertyViaGetterMethod(Object object, String propertyName, GraphQLType graphQLType, PropertyFetchingImpl.MethodFinder methodFinder, Supplier<Object> singleArgumentValue)
private Object	getPropertyViaGetterUsingPrefix(Object object, String propertyName, String prefix, PropertyFetchingImpl.MethodFinder methodFinder, Supplier<Object> singleArgumentValue)
private Object	getPropertyViaRecordMethod(Object object, String propertyName, PropertyFetchingImpl.MethodFinder methodFinder, Supplier<Object> singleArgumentValue)
private boolean	hasZeroArgs(Method mth)
private Object	invokeField(Object object, Field field)
private Object	invokeMethod(Object object, Supplier<Object> singleArgumentValue, Method method, boolean takesSingleArgument)
private boolean	isBooleanProperty(GraphQLType graphQLType)
private boolean	isNegativelyCached(PropertyFetchingImpl.CacheKey key)
private boolean	isSuitablePublicMethod(Method method, boolean allowStaticMethods)
private Optional<Function<Object,Object>>	lambdaGetter(String propertyName, Object object)
private PropertyFetchingImpl.CacheKey	mkCacheKey(Object object, String propertyName)
private static Comparator<? super Method>	mostMethodArgsFirst()
private void	putInNegativeCache(PropertyFetchingImpl.CacheKey key)
boolean	setUseLambdaFactory(boolean flag)
boolean	setUseNegativeCache(boolean flag)
boolean	setUseSetAccessible(boolean flag)
private boolean	takesSingleArgumentTypeAsOnlyArgument(Method mth)

Methods inherited from class java.lang.Object

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

Field Details

log

private static final org.slf4j.Logger log

USE_SET_ACCESSIBLE

private final AtomicBoolean USE_SET_ACCESSIBLE

USE_LAMBDA_FACTORY

private final AtomicBoolean USE_LAMBDA_FACTORY

USE_NEGATIVE_CACHE

private final AtomicBoolean USE_NEGATIVE_CACHE

LAMBDA_CACHE

private final ConcurrentMap<PropertyFetchingImpl.CacheKey,PropertyFetchingImpl.CachedLambdaFunction> LAMBDA_CACHE

METHOD_CACHE

private final ConcurrentMap<PropertyFetchingImpl.CacheKey,PropertyFetchingImpl.CachedMethod> METHOD_CACHE

FIELD_CACHE

private final ConcurrentMap<PropertyFetchingImpl.CacheKey,Field> FIELD_CACHE

NEGATIVE_CACHE

private final ConcurrentMap<PropertyFetchingImpl.CacheKey,PropertyFetchingImpl.CacheKey> NEGATIVE_CACHE

singleArgumentType

private final Class<?> singleArgumentType

Constructor Details

PropertyFetchingImpl

public PropertyFetchingImpl(Class<?> singleArgumentType)

Method Details

getPropertyValue

public Object getPropertyValue(String propertyName,
 Object object,
 GraphQLType graphQLType,
 boolean dfeInUse,
 Supplier<Object> singleArgumentValue)

lambdaGetter

private Optional<Function<Object,Object>> lambdaGetter(String propertyName,
 Object object)

isNegativelyCached

private boolean isNegativelyCached(PropertyFetchingImpl.CacheKey key)

putInNegativeCache

private void putInNegativeCache(PropertyFetchingImpl.CacheKey key)

getPropertyViaRecordMethod

private Object getPropertyViaRecordMethod(Object object,
 String propertyName,
 PropertyFetchingImpl.MethodFinder methodFinder,
 Supplier<Object> singleArgumentValue)
                                   throws NoSuchMethodException

Throws:

NoSuchMethodException

getPropertyViaGetterMethod

private Object getPropertyViaGetterMethod(Object object,
 String propertyName,
 GraphQLType graphQLType,
 PropertyFetchingImpl.MethodFinder methodFinder,
 Supplier<Object> singleArgumentValue)
                                   throws NoSuchMethodException

Throws:

NoSuchMethodException

getPropertyViaGetterUsingPrefix

private Object getPropertyViaGetterUsingPrefix(Object object,
 String propertyName,
 String prefix,
 PropertyFetchingImpl.MethodFinder methodFinder,
 Supplier<Object> singleArgumentValue)
                                        throws NoSuchMethodException

Throws:

NoSuchMethodException

findPubliclyAccessibleMethod

private Method findPubliclyAccessibleMethod(PropertyFetchingImpl.CacheKey cacheKey,
 Class<?> rootClass,
 String methodName,
 boolean dfeInUse,
 boolean allowStaticMethods)
                                     throws NoSuchMethodException

Invoking public methods on package-protected classes via reflection causes exceptions. This method searches a class's hierarchy for public visibility parent classes with the desired getter. This particular case is required to support AutoValue style data classes, which have abstract public interfaces implemented by package-protected (generated) subclasses.

Throws:

NoSuchMethodException

isSuitablePublicMethod

private boolean isSuitablePublicMethod(Method method,
 boolean allowStaticMethods)

findRecordMethod

private Method findRecordMethod(PropertyFetchingImpl.CacheKey cacheKey,
 Class<?> rootClass,
 String methodName)
                         throws NoSuchMethodException

Throws:

NoSuchMethodException

findViaSetAccessible

private Method findViaSetAccessible(PropertyFetchingImpl.CacheKey cacheKey,
 Class<?> aClass,
 String methodName,
 boolean dfeInUse)
                             throws NoSuchMethodException

Throws:

NoSuchMethodException

getPropertyViaFieldAccess

private Object getPropertyViaFieldAccess(PropertyFetchingImpl.CacheKey cacheKey,
 Object object,
 String propertyName)
                                  throws PropertyFetchingImpl.FastNoSuchMethodException

Throws:

PropertyFetchingImpl.FastNoSuchMethodException

invokeMethod

private Object invokeMethod(Object object,
 Supplier<Object> singleArgumentValue,
 Method method,
 boolean takesSingleArgument)
                     throws PropertyFetchingImpl.FastNoSuchMethodException

Throws:

PropertyFetchingImpl.FastNoSuchMethodException

invokeField

private Object invokeField(Object object,
 Field field)

isBooleanProperty

private boolean isBooleanProperty(GraphQLType graphQLType)

clearReflectionCache

public void clearReflectionCache()

setUseSetAccessible

public boolean setUseSetAccessible(boolean flag)

setUseLambdaFactory

public boolean setUseLambdaFactory(boolean flag)

setUseNegativeCache

public boolean setUseNegativeCache(boolean flag)

mkCacheKey

private PropertyFetchingImpl.CacheKey mkCacheKey(Object object,
 String propertyName)

hasZeroArgs

private boolean hasZeroArgs(Method mth)

takesSingleArgumentTypeAsOnlyArgument

private boolean takesSingleArgumentTypeAsOnlyArgument(Method mth)

mostMethodArgsFirst

private static Comparator<? super Method> mostMethodArgsFirst()