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How to use createTypeVariableMap method of org.easymock.internal.BridgeMethodResolver class

Best Easymock code snippet using org.easymock.internal.BridgeMethodResolver.createTypeVariableMap

Source:BridgeMethodResolver.java

...107     *            the bridge method108     * @return the bridged method, or <code>null</code> if none found109     */110    private static Method searchCandidates(final List<Method> candidateMethods, final Method bridgeMethod) {111        final Map<TypeVariable<?>, Type> typeParameterMap = createTypeVariableMap(bridgeMethod112                .getDeclaringClass());113        for (int i = 0; i < candidateMethods.size(); i++) {114            final Method candidateMethod = candidateMethods.get(i);115            if (isBridgeMethodFor(bridgeMethod, candidateMethod, typeParameterMap)) {116                return candidateMethod;117            }118        }119        return null;120    }121122    /**123     * Return <code>true</code> if the supplied '<code>candidateMethod</code>'124     * can be consider a validate candidate for the {@link Method} that is125     * {@link Method#isBridge() bridged} by the supplied {@link Method bridge126     * Method}. This method performs inexpensive checks and can be used quickly127     * filter for a set of possible matches.128     */129    private static boolean isBridgedCandidateFor(final Method candidateMethod, final Method bridgeMethod) {130        return (!candidateMethod.isBridge() && !candidateMethod.equals(bridgeMethod)131                && candidateMethod.getName().equals(bridgeMethod.getName()) && candidateMethod132                .getParameterTypes().length == bridgeMethod.getParameterTypes().length);133    }134135    /**136     * Determine whether or not the bridge {@link Method} is the bridge for the137     * supplied candidate {@link Method}.138     */139    private static boolean isBridgeMethodFor(final Method bridgeMethod, final Method candidateMethod,140            final Map<TypeVariable<?>, Type> typeVariableMap) {141        if (isResolvedTypeMatch(candidateMethod, bridgeMethod, typeVariableMap)) {142            return true;143        }144        final Method method = findGenericDeclaration(bridgeMethod);145        return (method != null ? isResolvedTypeMatch(method, candidateMethod, typeVariableMap) : false);146    }147148    /**149     * Search for the generic {@link Method} declaration whose erased signature150     * matches that of the supplied bridge method.151     * 152     * @throws IllegalStateException153     *             if the generic declaration cannot be found154     */155    private static Method findGenericDeclaration(final Method bridgeMethod) {156        // Search parent types for method that has same signature as bridge.157        Class<?> superclass = bridgeMethod.getDeclaringClass().getSuperclass();158        while (!Object.class.equals(superclass)) {159            final Method method = searchForMatch(superclass, bridgeMethod);160            if (method != null && !method.isBridge()) {161                return method;162            }163            superclass = superclass.getSuperclass();164        }165166        // Search interfaces.167        final Class<?>[] interfaces = getAllInterfacesForClass(bridgeMethod.getDeclaringClass());168        for (final Class<?> anInterface : interfaces) {169            final Method method = searchForMatch(anInterface, bridgeMethod);170            if (method != null && !method.isBridge()) {171                return method;172            }173        }174175        return null;176    }177178    /**179     * Return <code>true</code> if the {@link Type} signature of both the180     * supplied {@link Method#getGenericParameterTypes() generic Method} and181     * concrete {@link Method} are equal after resolving all182     * {@link TypeVariable TypeVariables} using the supplied183     * {@link #createTypeVariableMap TypeVariable Map}, otherwise returns184     * <code>false</code>.185     */186    private static boolean isResolvedTypeMatch(final Method genericMethod, final Method candidateMethod,187            final Map<TypeVariable<?>, Type> typeVariableMap) {188        final Type[] genericParameters = genericMethod.getGenericParameterTypes();189        final Class<?>[] candidateParameters = candidateMethod.getParameterTypes();190        if (genericParameters.length != candidateParameters.length) {191            return false;192        }193        for (int i = 0; i < genericParameters.length; i++) {194            final Type genericParameter = genericParameters[i];195            final Class<?> candidateParameter = candidateParameters[i];196            if (candidateParameter.isArray()) {197                // An array type: compare the component type.198                final Type rawType = getRawType(genericParameter, typeVariableMap);199                if (rawType instanceof GenericArrayType) {200                    if (!candidateParameter.getComponentType().equals(201                            getRawType(((GenericArrayType) rawType).getGenericComponentType(),202                                    typeVariableMap))) {203                        return false;204                    }205                    break;206                }207            }208            // A non-array type: compare the type itself.209            if (!candidateParameter.equals(getRawType(genericParameter, typeVariableMap))) {210                return false;211            }212        }213        return true;214    }215216    /**217     * Determine the raw type for the given generic parameter type.218     */219    private static Type getRawType(final Type genericType, final Map<TypeVariable<?>, Type> typeVariableMap) {220        if (genericType instanceof TypeVariable<?>) {221            final TypeVariable<?> tv = (TypeVariable<?>) genericType;222            final Type result = typeVariableMap.get(tv);223            return (result != null ? result : Object.class);224        } else if (genericType instanceof ParameterizedType) {225            return ((ParameterizedType) genericType).getRawType();226        } else {227            return genericType;228        }229    }230231    /**232     * If the supplied {@link Class} has a declared {@link Method} whose233     * signature matches that of the supplied {@link Method}, then this matching234     * {@link Method} is returned, otherwise <code>null</code> is returned.235     */236    private static Method searchForMatch(final Class<?> type, final Method bridgeMethod) {237        return findMethod(type, bridgeMethod.getName(), bridgeMethod.getParameterTypes());238    }239240    /**241     * Build a mapping of {@link TypeVariable#getName TypeVariable names} to242     * concrete {@link Class} for the specified {@link Class}. Searches all243     * super types, enclosing types and interfaces.244     */245    private static Map<TypeVariable<?>, Type> createTypeVariableMap(final Class<?> cls) {246        final Map<TypeVariable<?>, Type> typeVariableMap = new HashMap<TypeVariable<?>, Type>();247248        // interfaces249        extractTypeVariablesFromGenericInterfaces(cls.getGenericInterfaces(), typeVariableMap);250251        // super class252        Type genericType = cls.getGenericSuperclass();253        Class<?> type = cls.getSuperclass();254        while (!Object.class.equals(type)) {255            if (genericType instanceof ParameterizedType) {256                final ParameterizedType pt = (ParameterizedType) genericType;257                populateTypeMapFromParameterizedType(pt, typeVariableMap);258            }259            extractTypeVariablesFromGenericInterfaces(type.getGenericInterfaces(), typeVariableMap);
...

createTypeVariableMap

Using AI Code Generation

1import java.lang.reflect.Method;2import java.util.Arrays;3import java.util.Map;4import org.easymock.internal.BridgeMethodResolver;5public class Main {6    public static void main(String[] args) throws Exception {7        Method method = A.class.getMethod("method", Object.class, String.class);8        Method bridgeMethod = A.class.getMethod("method", Object.class, Object.class);9        Map<String, Class<?>> typeVariableMap = BridgeMethodResolver.createTypeVariableMap(method, bridgeMethod);10        System.out.println(typeVariableMap);11    }12}13class A {14    public <T> T method(Object a, T b) {15        return null;16    }17}18{T=class java.lang.String}

createTypeVariableMap

Using AI Code Generation

1package org.easymock.internal;2import java.lang.reflect.Method;3import java.lang.reflect.Type;4import java.util.HashMap;5import java.util.Map;6public class BridgeMethodResolver {7    public static Method findBridgedMethod(final Method method) {8        if (method.isBridge()) {9            final Method[] methods = method.getDeclaringClass().getMethods();10            for (final Method candidateMethod : methods) {11                if (isBridgedCandidateFor(candidateMethod, method)) {12                    return candidateMethod;13                }14            }15        }16        return method;17    }18    private static boolean isBridgedCandidateFor(final Method candidateMethod,19            final Method bridgeMethod) {20        return candidateMethod.getName().equals(bridgeMethod.getName())21                && candidateMethod.getParameterTypes().length == bridgeMethod22                        .getParameterTypes().length23                && candidateMethod.getReturnType().equals(24                        bridgeMethod.getReturnType());25    }26    public static Map<String, Type> createTypeVariableMap(final Method method) {27        final Map<String, Type> typeVariableMap = new HashMap<String, Type>();28        final Type[] genericParameterTypes = method.getGenericParameterTypes();29        final TypeVariable<?>[] typeParameters = method.getDeclaringClass()30                .getTypeParameters();31        for (int i = 0; i < genericParameterTypes.length; i++) {32            final Type genericParameterType = genericParameterTypes[i];33            if (genericParameterType instanceof TypeVariable) {34                final TypeVariable<?> typeVariable = (TypeVariable<?>) genericParameterType;35                typeVariableMap.put(typeVariable.getName(),36                        typeParameters[i]);37            }38        }39        return typeVariableMap;40    }41}

createTypeVariableMap

Using AI Code Generation

1import java.lang.reflect.TypeVariable;2import java.util.Map;3import org.easymock.internal.BridgeMethodResolver;4public class CreateTypeVariableMapDemo {5    public static void main(String[] args) {6        Map<TypeVariable<?>, Class<?>> map = BridgeMethodResolver.createTypeVariableMap(String.class);7        System.out.println("Type variable map for java.lang.String class: " + map);8    }9}10Type variable map for java.lang.String class: {}

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