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();
}
}
}
}