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How to use MethodKey method of org.assertj.core.util.introspection.Introspection class

Best Assertj code snippet using org.assertj.core.util.introspection.Introspection.MethodKey

Source:Introspection.java

...33 */34public final class Introspection {35  // We want to cache negative results (i.e. absence of methods) to avoid same overhead on subsequent lookups36  // However ConcurrentHashMap does not permit nulls - Optional allows caching of 'missing' values37  private static final Map<MethodKey, Optional<Method>> METHOD_CACHE = new ConcurrentHashMap<>();38  // set false by default to follow the principle of least surprise as usual property getter are getX() isX(), not x().39  private static boolean bareNamePropertyMethods = false;40  /**41   * Returns the getter {@link Method} for a property matching the given name in the given object.42   *43   * @param propertyName the given property name.44   * @param target the given object.45   * @return the getter {@code Method} for a property matching the given name in the given object.46   * @throws NullPointerException if the given property name is {@code null}.47   * @throws IllegalArgumentException if the given property name is empty.48   * @throws NullPointerException if the given object is {@code null}.49   * @throws IntrospectionError if the getter for the matching property cannot be found or accessed.50   */51  public static Method getPropertyGetter(String propertyName, Object target) {52    checkNotNullOrEmpty(propertyName);53    requireNonNull(target);54    Method getter = findGetter(propertyName, target);55    if (getter == null) {56      throw new IntrospectionError(propertyNotFoundErrorMessage("No getter for property %s in %s", propertyName, target));57    }58    if (!isPublic(getter.getModifiers())) {59      throw new IntrospectionError(propertyNotFoundErrorMessage("No public getter for property %s in %s", propertyName, target));60    }61    try {62      // force access for static class with public getter63      getter.setAccessible(true);64      getter.invoke(target);65    } catch (Exception t) {66      throw new IntrospectionError(propertyNotFoundErrorMessage("Unable to find property %s in %s", propertyName, target), t);67    }68    return getter;69  }70  public static void setExtractBareNamePropertyMethods(boolean barenamePropertyMethods) {71    ConfigurationProvider.loadRegisteredConfiguration();72    bareNamePropertyMethods = barenamePropertyMethods;73  }74  @VisibleForTesting75  public static boolean canExtractBareNamePropertyMethods() {76    return bareNamePropertyMethods;77  }78  private static String propertyNotFoundErrorMessage(String message, String propertyName, Object target) {79    String targetTypeName = target.getClass().getName();80    String property = quote(propertyName);81    return format(message, property, targetTypeName);82  }83  private static Method findGetter(String propertyName, Object target) {84    String capitalized = propertyName.substring(0, 1).toUpperCase(ENGLISH) + propertyName.substring(1);85    // try to find getProperty86    Method getter = findMethod("get" + capitalized, target);87    if (isValidGetter(getter)) return getter;88    if (bareNamePropertyMethods) {89      // try to find bare name property90      getter = findMethod(propertyName, target);91      if (isValidGetter(getter)) return getter;92    }93    // try to find isProperty for boolean properties94    Method isAccessor = findMethod("is" + capitalized, target);95    return isValidGetter(isAccessor) ? isAccessor : null;96  }97  private static boolean isValidGetter(Method method) {98    return method != null && !Modifier.isStatic(method.getModifiers()) && !Void.TYPE.equals(method.getReturnType());99  }100  private static Method findMethod(String name, Object target) {101    final MethodKey methodKey = new MethodKey(name, target.getClass());102    return METHOD_CACHE.computeIfAbsent(methodKey, Introspection::findMethodByKey).orElse(null);103  }104  private static Optional<Method> findMethodByKey(MethodKey key) {105    // try public methods only106    Class<?> clazz = key.clazz;107    try {108      return Optional.of(clazz.getMethod(key.name));109    } catch (NoSuchMethodException | SecurityException ignored) {}110    // search all methods111    while (clazz != null) {112      try {113        return Optional.of(clazz.getDeclaredMethod(key.name));114      } catch (NoSuchMethodException | SecurityException ignored) {}115      clazz = clazz.getSuperclass();116    }117    return Optional.empty();118  }119  private static final class MethodKey {120    private final String name;121    private final Class<?> clazz;122    private MethodKey(final String name, final Class<?> clazz) {123      this.name = name;124      this.clazz = clazz;125    }126    @Override127    public boolean equals(final Object o) {128      if (this == o) return true;129      if (o == null || getClass() != o.getClass()) return false;130      final MethodKey methodKey = (MethodKey) o;131      return Objects.equals(name, methodKey.name) && Objects.equals(clazz, methodKey.clazz);132    }133    @Override134    public int hashCode() {135      return Objects.hash(name, clazz);136    }137  }138  private Introspection() {}139}...

MethodKey

Using AI Code Generation

1Method method = Introspection.method("methodKey").withParameterTypes(String.class).in(clazz).info();2Method method = Introspection.method("methodKey").withParameterTypes(String.class).in(clazz).info();3Method method = Introspection.method("methodKey").withParameterTypes(String.class).in(clazz).info();4Method method = Introspection.method("methodKey").withParameterTypes(String.class).in(clazz).info();5Method method = Introspection.method("methodKey").withParameterTypes(String.class).in(clazz).info();6Method method = Introspection.method("methodKey").withParameterTypes(String.class).in(clazz).info();7Method method = Introspection.method("methodKey").withParameterTypes(String.class).in(clazz).info();8Method method = Introspection.method("methodKey").withParameterTypes(String.class).in(clazz).info();9Method method = Introspection.method("methodKey").withParameterTypes(String.class).in(clazz).info();10Method method = Introspection.method("methodKey").withParameterTypes(String.class).in(clazz).info();

MethodKey

Using AI Code Generation

1MethodKey methodKey = new MethodKey("get", String.class);2Method method = methodKey.methodFor(introspectionClass);3method.invoke(introspectionObject, "name");4MethodKey methodKey = new MethodKey("get", String.class);5Method method = methodKey.methodFor(introspectionClass);6method.invoke(introspectionObject, "name");7MethodKey methodKey = new MethodKey("get", String.class);8Method method = methodKey.methodFor(introspectionClass);9method.invoke(introspectionObject, "name");10MethodKey methodKey = new MethodKey("get", String.class);11Method method = methodKey.methodFor(introspectionClass);12method.invoke(introspectionObject, "name");13MethodKey methodKey = new MethodKey("get", String.class);14Method method = methodKey.methodFor(introspectionClass);15method.invoke(introspectionObject, "name");16MethodKey methodKey = new MethodKey("get", String.class);17Method method = methodKey.methodFor(introspectionClass);18method.invoke(introspectionObject, "name");

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