aop EnableSchedulerLock MethodProxyScheduledLockAdvisor extends AbstractPointcutAdvisor

    AnnotationData findAnnotation(Object target, Method method) {
        AnnotationData annotation = findAnnotation(method);
        if (annotation != null) {
            return annotation;
        } else {
            // Try to find annotation on proxied class
            Class<?> targetClass = AopUtils.getTargetClass(target);
            if (targetClass != null) {
                try {
                    Method methodOnTarget = targetClass
                        .getMethod(method.getName(), method.getParameterTypes());
                    return findAnnotation(methodOnTarget);
                } catch (NoSuchMethodException e) {
                    return null;
                }
            } else {
                return null;
            }
        }
    }

    private AnnotationData findAnnotation(Method method) {
        net.javacrumbs.shedlock.core.SchedulerLock annotation = AnnotatedElementUtils.getMergedAnnotation(method, net.javacrumbs.shedlock.core.SchedulerLock.class);
        if (annotation != null) {
            return new AnnotationData(annotation.name(), annotation.lockAtMostFor(), annotation.lockAtMostForString(), annotation.lockAtLeastFor(), annotation.lockAtLeastForString());
        }
        SchedulerLock annotation2 = AnnotatedElementUtils.getMergedAnnotation(method, SchedulerLock.class);
        if (annotation2 != null) {
            return new AnnotationData(annotation2.name(), -1, annotation2.lockAtMostFor(), -1, annotation2.lockAtLeastFor());
        }
        return null;
    }

import org.springframework.aop.support.AopUtils;
import org.springframework.core.annotation.AnnotatedElementUtils;
import org.springframework.core.convert.converter.Converter;
import org.springframework.scheduling.support.ScheduledMethodRunnable;
import org.springframework.util.StringUtils;
import org.springframework.util.StringValueResolver;

class SpringLockConfigurationExtractor implements LockConfigurationExtractor

-------------------------------------------------------------------
implementation "net.javacrumbs.shedlock:shedlock-spring:${shedlockVersion}"
implementation "net.javacrumbs.shedlock:shedlock-provider-mongo:${shedlockVersion}"

shedlockVersion=4.15.1
----------------------------------------------------------------------

/**
 * Copyright 2009-2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.javacrumbs.shedlock.spring.aop;

import net.javacrumbs.shedlock.spring.annotation.EnableSchedulerLock;
import net.javacrumbs.shedlock.support.annotation.NonNull;
import org.springframework.context.annotation.AutoProxyRegistrar;
import org.springframework.context.annotation.ImportSelector;
import org.springframework.core.annotation.AnnotationAttributes;
import org.springframework.core.type.AnnotationMetadata;

import static net.javacrumbs.shedlock.spring.annotation.EnableSchedulerLock.InterceptMode;
import static net.javacrumbs.shedlock.spring.annotation.EnableSchedulerLock.InterceptMode.PROXY_METHOD;
import static net.javacrumbs.shedlock.spring.annotation.EnableSchedulerLock.InterceptMode.PROXY_SCHEDULER;

public class SchedulerLockConfigurationSelector implements ImportSelector {

    @Override
    public String[] selectImports(@NonNull AnnotationMetadata metadata) {
        AnnotationAttributes attributes = AnnotationAttributes.fromMap(metadata.getAnnotationAttributes(EnableSchedulerLock.class.getName(), false));
        InterceptMode mode = attributes.getEnum("interceptMode");
        if (mode == PROXY_METHOD) {
            return new String[]{AutoProxyRegistrar.class.getName(), MethodProxyLockConfiguration.class.getName()};
        } else if (mode == PROXY_SCHEDULER) {
            return new String[]{AutoProxyRegistrar.class.getName(), SchedulerProxyLockConfiguration.class.getName(), RegisterDefaultTaskSchedulerPostProcessor.class.getName()};
        } else {
            throw new UnsupportedOperationException("Unknown mode " + mode);
        }

    }
}

/**
 * Copyright 2009-2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.javacrumbs.shedlock.spring.aop;

import net.javacrumbs.shedlock.core.DefaultLockingTaskExecutor;
import net.javacrumbs.shedlock.core.LockProvider;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Lazy;
import org.springframework.context.annotation.Role;

@Configuration
@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
class MethodProxyLockConfiguration extends AbstractSchedulerLockConfiguration {
    @Bean
    @Role(BeanDefinition.ROLE_INFRASTRUCTURE)
    MethodProxyScheduledLockAdvisor proxyScheduledLockAopBeanPostProcessor(@Lazy LockProvider lockProvider) {
        return new MethodProxyScheduledLockAdvisor(new SpringLockConfigurationExtractor(defaultLockAtMostForDuration(), defaultLockAtLeastForDuration(), getResolver(), getDurationConverter()), new DefaultLockingTaskExecutor(lockProvider));

    }
}

/**
 * Copyright 2009-2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.javacrumbs.shedlock.spring.aop;

import net.javacrumbs.shedlock.core.LockConfiguration;
import net.javacrumbs.shedlock.core.LockingTaskExecutor;
import net.javacrumbs.shedlock.core.LockingTaskExecutor.TaskResult;
import net.javacrumbs.shedlock.spring.annotation.SchedulerLock;
import net.javacrumbs.shedlock.support.annotation.NonNull;
import org.aopalliance.aop.Advice;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.springframework.aop.Pointcut;
import org.springframework.aop.support.AbstractPointcutAdvisor;
import org.springframework.aop.support.ComposablePointcut;
import org.springframework.aop.support.annotation.AnnotationMatchingPointcut;

import java.lang.annotation.Annotation;
import java.util.Optional;

class MethodProxyScheduledLockAdvisor extends AbstractPointcutAdvisor {
    private final Pointcut pointcut = new ComposablePointcut(methodPointcutFor(net.javacrumbs.shedlock.core.SchedulerLock.class))
        .union(methodPointcutFor(SchedulerLock.class));

    private final Advice advice;

    MethodProxyScheduledLockAdvisor(SpringLockConfigurationExtractor lockConfigurationExtractor, LockingTaskExecutor lockingTaskExecutor) {
        this.advice = new LockingInterceptor(lockConfigurationExtractor, lockingTaskExecutor);
    }

    @NonNull
    private static AnnotationMatchingPointcut methodPointcutFor(Class<? extends Annotation> methodAnnotationType) {
        return new AnnotationMatchingPointcut(
            null,
            methodAnnotationType,
            true
        );
    }

    /**
     * Get the Pointcut that drives this advisor.
     */
    @NonNull
    @Override
    public Pointcut getPointcut() {
        return pointcut;
    }

    @NonNull
    @Override
    public Advice getAdvice() {
        return advice;
    }

    private static class LockingInterceptor implements MethodInterceptor {
        private final SpringLockConfigurationExtractor lockConfigurationExtractor;
        private final LockingTaskExecutor lockingTaskExecutor;

        LockingInterceptor(SpringLockConfigurationExtractor lockConfigurationExtractor, LockingTaskExecutor lockingTaskExecutor) {
            this.lockConfigurationExtractor = lockConfigurationExtractor;
            this.lockingTaskExecutor = lockingTaskExecutor;
        }

        @Override
        public Object invoke(MethodInvocation invocation) throws Throwable {
            Class<?> returnType = invocation.getMethod().getReturnType();
            if (returnType.isPrimitive() && !void.class.equals(returnType)) {
                throw new LockingNotSupportedException("Can not lock method returning primitive value");
            }

            LockConfiguration lockConfiguration = lockConfigurationExtractor.getLockConfiguration(invocation.getThis(), invocation.getMethod()).get();
            TaskResult<Object> result = lockingTaskExecutor.executeWithLock(invocation::proceed, lockConfiguration);

            if (Optional.class.equals(returnType)) {
                return toOptional(result);
            } else {
                return result.getResult();
            }
        }

        private static Object toOptional(TaskResult<Object> result) {
            if (result.wasExecuted()) {
                return result.getResult();
            } else {
                return Optional.empty();
            }
        }
    }
}